| [2] | 1 | #include "DST_Parser.h" |
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| 2 | |
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| 3 | #define DHL_FAIL_NULL_POINTER 0x02 |
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| 4 | #define DHL_FAIL_INVALID_SIZE 0x07 |
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| 5 | #define DHL_FAIL_INVALID_PARAM 0x08 |
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| 6 | #define DHL_FAIL_OUT_OF_RESOURCE 0x0A |
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| 7 | #define DHL_FAIL_INVALID_TABLEID 0x23 |
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| 8 | #define DHL_FAIL_INVALID_VERSION 0x24 |
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| 9 | |
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| 10 | #ifndef SysASSERT |
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| 11 | #ifdef DTAR |
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| 12 | #define SysASSERT(cond) do { if (!((cond)) { fprintf(stderr, "|%s:%d| ASSERT failed.\n", __FUNCTION__, __LINE__); } } while(0) |
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| 13 | #else |
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| 14 | #define SysASSERT(cond) |
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| 15 | #endif |
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| 16 | #endif |
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| 17 | |
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| 18 | #define checkMemoryError(p) if (p == 0) {err = DHL_FAIL_OUT_OF_RESOURCE ; goto ParseExit;} |
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| 19 | |
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| 20 | |
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| 21 | #if 0 |
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| 22 | ____MEM_CHAIN____() |
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| 23 | #endif |
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| 24 | |
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| 25 | typedef struct memElement { |
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| 26 | void* userData; |
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| 27 | struct memElement *next; |
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| 28 | } memElement_t, *memElementPtr_t; |
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| 29 | |
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| 30 | typedef struct memChainHead { |
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| 31 | memElementPtr_t element; |
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| 32 | } memChainHead_t, *memChainHeadPtr_t; |
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| 33 | |
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| 34 | typedef struct memChainHead* memId_t; |
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| 35 | |
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| 36 | /* API */ |
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| 37 | #define memChainCreate(a) _memChainCreate((a), __func__, __LINE__) |
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| 38 | #define memChainDestroy(a) _memChainDestroy((a), __func__, __LINE__) |
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| 39 | #define memChainAlloc(a, b) _memChainAlloc((a), (b), __func__, __LINE__) |
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| 40 | |
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| 41 | static int _memChainCreate (memId_t *memId, const char *func, int nLine) |
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| 42 | { |
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| 43 | if (memId == 0) return DHL_FAIL_INVALID_PARAM; |
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| 44 | memChainHeadPtr_t memChainHeadPtr = (memChainHeadPtr_t)_DST_OS_Calloc(sizeof(memChainHead_t), 1, func, nLine); |
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| 45 | if (memChainHeadPtr == 0) return DHL_FAIL_OUT_OF_RESOURCE; |
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| 46 | memChainHeadPtr->element = 0; |
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| 47 | *memId = memChainHeadPtr; /* set instance */ |
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| 48 | return 0; |
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| 49 | } |
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| 50 | |
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| 51 | static void _memChainDestroy (memId_t memId, const char *func, int nLine) |
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| 52 | { |
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| 53 | if (!memId) return; |
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| 54 | memChainHeadPtr_t memChainHeadPtr = (memChainHeadPtr_t)memId; |
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| 55 | /* free the memElements */ |
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| 56 | memElementPtr_t currElem = memChainHeadPtr->element; |
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| 57 | while (currElem != 0) { |
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| 58 | memElementPtr_t prevElem = currElem; |
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| 59 | currElem = currElem->next; |
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| 60 | _DST_OS_Free(prevElem , func, nLine); |
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| 61 | } |
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| 62 | /* lastly, free the memChainHead */ |
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| 63 | _DST_OS_Free(memChainHeadPtr , func, nLine); |
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| 64 | } |
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| 65 | |
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| 66 | static void* _memChainAlloc (memId_t memId, DS_U32 size, const char *func, int nLine) |
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| 67 | { |
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| 68 | memElementPtr_t memElementPtr = (memElementPtr_t)_DST_OS_Calloc(sizeof(memElement_t) + size + 8, 1, func, nLine); |
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| 69 | if (memElementPtr == 0) return 0; |
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| 70 | |
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| 71 | void *p = (void *)(((DS_U8 *)(memElementPtr) + sizeof(memElement_t))); |
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| 72 | /* align on 64-bit boundary */ |
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| 73 | memElementPtr->userData = (void *)((DS_U32)(((DS_U8 *)p)+8) & ((~0) << 3)); |
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| 74 | void *rptr = memElementPtr->userData; |
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| 75 | /* insert element in list */ |
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| 76 | memChainHeadPtr_t memChainHeadPtr = (memChainHeadPtr_t)memId; |
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| 77 | memElementPtr->next = memChainHeadPtr->element; |
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| 78 | memChainHeadPtr->element = memElementPtr; |
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| 79 | return (rptr); |
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| 80 | } |
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| 81 | |
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| 82 | #if 0 |
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| 83 | ____PAT____() |
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| 84 | #endif |
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| 85 | |
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| 86 | int DHL_PSI_ParsePAT( DS_U8 **sectionArr, MPEG_PAT **returnPat) |
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| 87 | { |
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| 88 | if (sectionArr == 0 || sectionArr[0] == 0 || returnPat == 0) return (DHL_FAIL_NULL_POINTER); |
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| 89 | int numSections = get_last_section_number(sectionArr[0]) + 1; |
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| 90 | |
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| 91 | /* now verify all other sections are present */ |
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| 92 | for (int i = 1; i < numSections; i++) if (sectionArr[i] == 0) return (DHL_FAIL_NULL_POINTER); |
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| 93 | |
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| 94 | int numPrograms = 0; |
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| 95 | int err = 0; |
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| 96 | for (int i = 0; i < numSections; ++i) |
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| 97 | { |
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| 98 | DS_U8 *p = sectionArr[i]; |
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| 99 | if (p[SECTION_TID] != PROGRAM_ASSOCIATION_SECTION) |
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| 100 | { |
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| 101 | //This thing isn't a PAT. Stop right here. |
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| 102 | DST_Printf("PAT: Bad table ID."); |
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| 103 | err = DHL_FAIL_INVALID_TABLEID; |
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| 104 | break; |
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| 105 | } |
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| 106 | if ((p[SECTION_LEN_HI] & 0x80) != 0x80) |
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| 107 | { |
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| 108 | DST_Printf("PAT: section_syntax_indicator not set"); |
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| 109 | } |
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| 110 | if ((p[SECTION_LEN_HI] & 0x40) != 0x00) |
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| 111 | { |
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| 112 | DST_Printf("PAT: private_indicator set"); |
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| 113 | } |
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| 114 | if (i > p[SECTION_NUM_LAST]) |
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| 115 | { |
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| 116 | DST_Printf("PAT: last_section_number > section_number"); |
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| 117 | } |
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| 118 | /* |
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| 119 | * The PAT has a fixed number of bytes in its main loop with no |
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| 120 | * descriptors. We have the standard 8 byte header and the trailing |
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| 121 | * 4 byte CRC. The rest should be an integral number of programs. |
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| 122 | */ |
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| 123 | int len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3; |
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| 124 | if (len < 16 || (len - 12) % 4 != 0) |
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| 125 | { |
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| 126 | DST_Printf("PAT: Inappropriate section length(%d)\n",len); |
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| 127 | //LEON_20050916 | ADD for add patch |
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| 128 | // - hangup when input abnormal PAT section. |
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| 129 | err = DHL_FAIL_INVALID_TABLEID; |
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| 130 | break; |
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| 131 | } |
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| 132 | int slots = (len - 12) / 4; |
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| 133 | p += SECTION_HEADER_LENGTH; |
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| 134 | for (int j = 0; j < slots; ++j, p += 4) { |
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| 135 | int program_number = (p[0] << 8) + p[1]; |
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| 136 | if (program_number != 0) |
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| 137 | { |
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| 138 | numPrograms++; |
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| 139 | } |
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| 140 | } |
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| 141 | } |
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| 142 | if (err) return err; |
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| 143 | /* create the memChain */ |
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| 144 | memId_t memId = 0; |
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| 145 | err = memChainCreate(&memId); |
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| 146 | if (err) return err; |
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| 147 | |
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| 148 | MPEG_PAT *pat = (MPEG_PAT *)((memId_t *)(memChainAlloc(memId,sizeof(MPEG_PAT)+sizeof(memId_t))) + 1); |
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| 149 | if (pat == 0) |
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| 150 | { |
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| 151 | memChainDestroy(memId); |
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| 152 | return DHL_FAIL_OUT_OF_RESOURCE; |
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| 153 | } |
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| 154 | |
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| 155 | pat->programs = (MPEG_PAT_program *)memChainAlloc(memId,sizeof(MPEG_PAT_program)*numPrograms); |
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| 156 | if (pat->programs == 0) |
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| 157 | { |
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| 158 | memChainDestroy(memId); |
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| 159 | return DHL_FAIL_OUT_OF_RESOURCE; |
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| 160 | } |
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| 161 | |
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| 162 | pat->section_number = 0; |
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| 163 | pat->last_section_number = 0; |
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| 164 | pat->isWholePAT = true; |
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| 165 | |
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| 166 | /* |
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| 167 | * Second pass, we fill in the table. |
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| 168 | * We assume that everything we verified or warned about above is still |
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| 169 | * true. We already bailed out on fatal errors |
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| 170 | */ |
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| 171 | int index = 0; |
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| 172 | for (int i = 0; i < numSections; ++i) |
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| 173 | { |
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| 174 | DS_U8 *p = sectionArr[i]; |
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| 175 | int len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3; |
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| 176 | |
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| 177 | int transport_stream_id = ((p[SECTION_TID_EXT_HI] << 8) | |
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| 178 | p[SECTION_TID_EXT_LO]); |
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| 179 | int version_number = (p[SECTION_VERSION] & SECTION_VERSION_MASK) >> |
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| 180 | SECTION_VERSION_SHIFT; |
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| 181 | bool current_next_indicator = (p[SECTION_VERSION] & SECTION_CNI_MASK) != 0; |
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| 182 | |
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| 183 | if (i == 0) |
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| 184 | { |
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| 185 | pat->transport_stream_id = transport_stream_id; |
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| 186 | pat->version_number = version_number; |
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| 187 | pat->current_next_indicator = current_next_indicator; |
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| 188 | } |
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| 189 | else |
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| 190 | { |
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| 191 | if (pat->transport_stream_id != transport_stream_id) |
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| 192 | { |
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| 193 | DST_Printf("PAT: Inconsistent transport_stream_id"); |
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| 194 | } |
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| 195 | if(pat->version_number != version_number) |
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| 196 | { |
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| 197 | DST_Printf("ParsePAT: inconsistent version_number"); |
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| 198 | } |
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| 199 | if(pat->current_next_indicator != current_next_indicator) |
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| 200 | { |
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| 201 | DST_Printf("ParsePAT: inconsistent current_next_indicator"); |
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| 202 | } |
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| 203 | } |
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| 204 | int slots = (len - 12) / 4; |
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| 205 | p += SECTION_HEADER_LENGTH; |
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| 206 | for (int j = 0; j < slots; ++j, p += 4) |
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| 207 | { |
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| 208 | int program_number = (p[0]<<8) + p[1]; |
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| 209 | int pid = ((p[2]<<8) + p[3]) & PID_MASK; |
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| 210 | if (program_number == 0) |
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| 211 | { |
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| 212 | if (pat->networkPIDPresent) |
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| 213 | { |
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| 214 | DST_Printf("PAT: More than one network_PID"); |
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| 215 | } |
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| 216 | else |
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| 217 | { |
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| 218 | pat->networkPIDPresent = true; |
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| 219 | pat->network_PID = pid; |
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| 220 | } |
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| 221 | } |
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| 222 | else |
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| 223 | { |
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| 224 | bool bDuplicate = false; |
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| 225 | for (int k = 0; k < index; ++k) |
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| 226 | { |
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| 227 | if (pat->programs[k].program_number != program_number) continue; |
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| 228 | DST_Printf("PAT: Duplicate program number"); |
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| 229 | bDuplicate = true; |
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| 230 | break; |
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| 231 | } |
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| 232 | if (bDuplicate == false) |
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| 233 | { |
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| 234 | pat->programs[index].program_number = program_number; |
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| 235 | pat->programs[index].program_map_PID = pid; |
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| 236 | index++; |
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| 237 | } |
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| 238 | } |
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| 239 | } |
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| 240 | } |
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| 241 | pat->numPrograms = index; |
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| 242 | *(((memId_t *)pat)-1) = memId; |
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| 243 | *returnPat = pat; |
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| 244 | return(err); |
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| 245 | } |
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| 246 | |
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| 247 | #if 0 |
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| 248 | ____SDT____() |
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| 249 | #endif |
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| 250 | |
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| 251 | static int GetMpegDescriptor (DS_U8 *descriptors, DS_U16 len, DS_U8 tag, |
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| 252 | DS_U16 instance, DS_U8 **descriptor) |
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| 253 | { |
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| 254 | if (descriptors == 0 || len == 0 || descriptor == 0) return DHL_FAIL_INVALID_PARAM; |
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| 255 | |
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| 256 | DS_U16 nCount = 0; |
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| 257 | int nPos = 0; |
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| 258 | while (nPos < len) |
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| 259 | { |
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| 260 | DS_U8 nTag = descriptors[nPos]; |
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| 261 | DS_U8 nLen = descriptors[nPos+1]; |
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| 262 | if (nPos + nLen + 2 > len) break; // ÀԷµȵ¥ÀÌÅÍÀÇ ¹üÀ§¸¦ ¹ù¾î³ª µ¥ÀÌÅͰ¡ Àִ°æ¿ì |
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| 263 | if (nTag == tag) |
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| 264 | { |
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| 265 | if (nCount == instance) |
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| 266 | { |
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| 267 | *descriptor = &descriptors[nPos]; |
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| 268 | return 0; |
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| 269 | } |
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| 270 | nCount++; |
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| 271 | } |
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| 272 | nPos += (nLen + 2); |
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| 273 | } |
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| 274 | return DHL_FAIL_INVALID_PARAM; |
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| 275 | } |
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| 276 | |
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| 277 | static int GetMpegDescriptorCount (DS_U8 *descriptors, DS_U16 len, DS_U8 tag) |
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| 278 | { |
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| 279 | if (descriptors == 0 || len == 0) return 0; |
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| 280 | |
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| 281 | int nCount = 0; |
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| 282 | int nPos = 0; |
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| 283 | while (nPos < len) |
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| 284 | { |
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| 285 | DS_U8 nTag = descriptors[nPos]; |
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| 286 | DS_U8 nLen = descriptors[nPos+1]; |
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| 287 | if (nPos + nLen + 2 > len) break; // ÀԷµȵ¥ÀÌÅÍÀÇ ¹üÀ§¸¦ ¹ù¾î³ª µ¥ÀÌÅͰ¡ Àִ°æ¿ì |
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| 288 | if (nTag == tag) nCount++; |
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| 289 | nPos += (nLen + 2); |
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| 290 | } |
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| 291 | return nCount; |
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| 292 | } |
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| 293 | |
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| 294 | static void DHL_PSI_ParseServiceDescriptor(DS_U8 *p_desc, memId_t memId, dvb_service_descriptor_t **pp_service_desc) |
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| 295 | { |
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| 296 | if ( !p_desc || !pp_service_desc ) return; |
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| 297 | dvb_service_descriptor_t *p_service = (dvb_service_descriptor_t *)memChainAlloc(memId, sizeof(dvb_service_descriptor_t)); |
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| 298 | p_service->service_type = p_desc[2]; |
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| 299 | p_service->i_provider_name_length = p_desc[3]; |
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| 300 | p_service->p_provider_name = 0; |
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| 301 | if (p_service->i_provider_name_length) |
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| 302 | { |
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| 303 | p_service->p_provider_name = (DS_U8 *)memChainAlloc(memId, p_service->i_provider_name_length); |
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| 304 | memcpy( p_service->p_provider_name, &p_desc[4], p_service->i_provider_name_length ); |
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| 305 | } |
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| 306 | p_service->i_service_name_length = p_desc[4+p_service->i_provider_name_length]; |
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| 307 | p_service->p_service_name = 0; |
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| 308 | if (p_service->i_service_name_length) |
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| 309 | { |
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| 310 | p_service->p_service_name = (DS_U8 *)memChainAlloc(memId, p_service->i_service_name_length); |
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| 311 | memcpy( p_service->p_service_name, &p_desc[5+p_service->i_provider_name_length], p_service->i_service_name_length ); |
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| 312 | } |
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| 313 | *pp_service_desc = p_service; |
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| 314 | } |
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| 315 | |
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| 316 | static void DHL_PSI_ParseLogoTransmissionDescriptor( DS_U8 *p, memId_t memId, arib_logo_transmission_descriptor_t **pp_logo_transmission ) |
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| 317 | { |
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| 318 | DS_U8 len = p[1]; |
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| 319 | if (len < 2) return; |
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| 320 | arib_logo_transmission_descriptor_t *p_logo_transmission = (arib_logo_transmission_descriptor_t *)memChainAlloc(memId, sizeof(arib_logo_transmission_descriptor_t)); |
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| 321 | p_logo_transmission->logo_transmission_type = p[2]; |
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| 322 | switch (p_logo_transmission->logo_transmission_type) |
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| 323 | { |
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| 324 | case 0x01: |
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| 325 | p_logo_transmission->logo_id = (( p[3] & 0x1 ) << 8 ) + p[4]; |
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| 326 | p_logo_transmission->logo_version = (( p[5] & 0x7 ) << 8 ) + p[6]; |
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| 327 | p_logo_transmission->download_data_id = ( p[7] << 8 ) + p[8]; |
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| 328 | break; |
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| 329 | case 0x02: |
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| 330 | p_logo_transmission->logo_id = (( p[3] & 0x1 ) << 8 ) + p[4]; |
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| 331 | break; |
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| 332 | case 0x03: |
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| 333 | p_logo_transmission->logo_char = (DS_U8 *)memChainAlloc(memId, len-1); |
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| 334 | memcpy(p_logo_transmission->logo_char, &p[3], len-2); |
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| 335 | p_logo_transmission->logo_char[len-2] = 0; // make null terminate |
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| 336 | break; |
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| 337 | } |
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| 338 | *pp_logo_transmission = p_logo_transmission; |
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| 339 | } |
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| 340 | |
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| 341 | int DHL_PSI_ParseDvbSdt(DS_U8 **sectionArr, bool b_actual, dvb_sdt_t **pp_sdt) |
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| 342 | { |
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| 343 | if (!sectionArr || !pp_sdt || !sectionArr[0]) return DHL_FAIL_NULL_POINTER; |
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| 344 | int numSections = get_last_section_number(sectionArr[0]) + 1; |
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| 345 | /* now verify all other sections are present */ |
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| 346 | for (int i = 1; i < numSections; i++) if (sectionArr[i] == 0) return DHL_FAIL_NULL_POINTER; |
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| 347 | // First pass, we verify section syntax and count the number of programs |
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| 348 | int numChannels = 0; |
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| 349 | for (int i = 0; i < numSections; ++i) |
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| 350 | { |
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| 351 | DS_U8 *p = sectionArr[i]; |
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| 352 | if ( (b_actual && p[SECTION_TID] != DVB_TID_service_description_section_actual) || |
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| 353 | (!b_actual && p[SECTION_TID] != DVB_TID_service_description_section_other) ) |
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| 354 | { |
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| 355 | DST_Printf("SDT: Bad table ID. (0x%02X)\n", p[SECTION_TID]); |
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| 356 | return DHL_FAIL_INVALID_TABLEID; |
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| 357 | } |
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| 358 | if ((p[SECTION_LEN_HI] & 0x80) != 0x80) DST_Printf("SDT: section_syntax_indicator not set\n"); |
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| 359 | |
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| 360 | int len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3 - 4; // + header - crc |
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| 361 | int nPos = 11; |
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| 362 | while (len - nPos >= 5) |
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| 363 | { |
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| 364 | numChannels++; |
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| 365 | DS_U16 descriptor_length = ((p[nPos+3]<<8)+p[nPos+4]) & 0xFFF; |
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| 366 | nPos += (descriptor_length + 5); |
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| 367 | } |
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| 368 | } |
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| 369 | /* create the memChain */ |
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| 370 | memId_t memId = 0; |
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| 371 | if (memChainCreate(&memId)) return DHL_FAIL_OUT_OF_RESOURCE; |
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| 372 | |
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| 373 | dvb_sdt_t *p_sdt = (dvb_sdt_t *)((memId_t *)(memChainAlloc(memId,sizeof(dvb_sdt_t)+sizeof(memId_t))) + 1); |
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| 374 | if (!p_sdt) |
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| 375 | { |
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| 376 | memChainDestroy(memId); |
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| 377 | return DHL_FAIL_OUT_OF_RESOURCE; |
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| 378 | } |
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| 379 | p_sdt->numServices = numChannels; |
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| 380 | p_sdt->services = 0; |
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| 381 | if (numChannels) |
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| 382 | { |
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| 383 | p_sdt->services = (dvb_sdt_service_t *)memChainAlloc(memId,sizeof(dvb_sdt_service_t)*numChannels); |
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| 384 | if (!p_sdt->services) |
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| 385 | { |
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| 386 | memChainDestroy(memId); |
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| 387 | return DHL_FAIL_OUT_OF_RESOURCE; |
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| 388 | } |
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| 389 | } |
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| 390 | // Now fill-out all the remaining fields over the all sections. |
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| 391 | int index = 0; |
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| 392 | for (int i = 0; i < numSections; ++i) |
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| 393 | { |
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| 394 | DS_U8 *p = sectionArr[i]; |
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| 395 | if (i == 0) /* First section */ |
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| 396 | { |
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| 397 | p_sdt->transport_stream_id = ((p[SECTION_TID_EXT_HI] << 8) | p[SECTION_TID_EXT_LO]); |
|---|
| 398 | p_sdt->version_number = (p[SECTION_VERSION] & SECTION_VERSION_MASK) >> SECTION_VERSION_SHIFT; |
|---|
| 399 | p_sdt->original_network_id = ((p[8]<<8) + p[9]); |
|---|
| 400 | p_sdt->section_number = p[SECTION_NUM]; |
|---|
| 401 | p_sdt->last_section_number = p[SECTION_NUM_LAST]; |
|---|
| 402 | } |
|---|
| 403 | int len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3 - 4;// + header - crc |
|---|
| 404 | int nPos = 11; |
|---|
| 405 | while (len - nPos >= 5) |
|---|
| 406 | { |
|---|
| 407 | dvb_sdt_service_t *p_service = &p_sdt->services[index]; |
|---|
| 408 | p_service->service_id = ((p[nPos+0]<<8)+p[nPos+1]); |
|---|
| 409 | p_service->EIT_user_defined_flags = (p[nPos+2]>>2) & 0x07; |
|---|
| 410 | p_service->EIT_schedule_flag = (p[nPos+2] & 0x02) ? true : false; |
|---|
| 411 | p_service->EIT_present_following_flag = (p[nPos+2] & 0x01) ? true : false; |
|---|
| 412 | p_service->running_status = (p[nPos+3]>>5) & 0x07; |
|---|
| 413 | p_service->free_CA_mode = ((p[nPos+3]>>4) & 0x01) ? true : false; |
|---|
| 414 | p_service->descriptor_length = ((p[nPos+3]<<8)+p[nPos+4]) & 0xFFF; |
|---|
| 415 | p_service->descriptors = 0; |
|---|
| 416 | if (p_service->descriptor_length) |
|---|
| 417 | { |
|---|
| 418 | p_service->descriptors = (DS_U8 *)memChainAlloc( memId, p_service->descriptor_length); |
|---|
| 419 | if (!p_service->descriptors) |
|---|
| 420 | { |
|---|
| 421 | memChainDestroy(memId); |
|---|
| 422 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 423 | } |
|---|
| 424 | memcpy(p_service->descriptors, &p[nPos+5], p_service->descriptor_length); |
|---|
| 425 | } |
|---|
| 426 | DS_U8* p_desc = 0; |
|---|
| 427 | int err=GetMpegDescriptor(p_service->descriptors, p_service->descriptor_length, DVB_TAG_service_descriptor, 0, &p_desc); |
|---|
| 428 | p_service->p_service_desc = 0; |
|---|
| 429 | if ( p_desc && err == 0 ) DHL_PSI_ParseServiceDescriptor( p_desc, memId, &(p_service->p_service_desc) ); |
|---|
| 430 | // Parse service_descriptor if available. |
|---|
| 431 | p_desc = 0; |
|---|
| 432 | err=GetMpegDescriptor( p_service->descriptors, p_service->descriptor_length, ARIB_TAG_logo_transmission_descriptor, 0, &p_desc ); |
|---|
| 433 | p_service->logo_tx_desc = 0; |
|---|
| 434 | if ( p_desc && err == 0 ) DHL_PSI_ParseLogoTransmissionDescriptor( p_desc, memId, &(p_service->logo_tx_desc) ); |
|---|
| 435 | |
|---|
| 436 | index++; |
|---|
| 437 | nPos += (p_service->descriptor_length + 5); |
|---|
| 438 | } |
|---|
| 439 | } |
|---|
| 440 | *(((memId_t *)p_sdt)-1) = memId; |
|---|
| 441 | *pp_sdt = p_sdt; |
|---|
| 442 | return 0; |
|---|
| 443 | } |
|---|
| 444 | |
|---|
| 445 | void DHL_PSI_FreeMpegSection (void *sectionPtr) |
|---|
| 446 | { |
|---|
| 447 | if (sectionPtr) memChainDestroy(*(((memId_t *)sectionPtr)-1)); |
|---|
| 448 | } |
|---|
| 449 | |
|---|
| 450 | void DHL_PSI_ParseNetworkNameDescriptor(DS_U8 *p_desc, memId_t memId, DS_U8 **pp_network_name, DS_U8 *p_length) |
|---|
| 451 | { |
|---|
| 452 | if (!p_desc || !pp_network_name || !p_length) return; |
|---|
| 453 | *p_length = p_desc[1]; |
|---|
| 454 | *pp_network_name = (DS_U8 *)memChainAlloc( memId, *p_length); |
|---|
| 455 | memcpy(*pp_network_name, &p_desc[2], *p_length); |
|---|
| 456 | } |
|---|
| 457 | |
|---|
| 458 | static int DHL_PSI_ParseSystemManagementDescriptor(DS_U8* p, DS_U16* p_system_management_id) |
|---|
| 459 | { |
|---|
| 460 | if (!p_system_management_id || !p || p[1] < 2) return -1; |
|---|
| 461 | *p_system_management_id = (p[2]<<8) + p[3]; |
|---|
| 462 | return 0; |
|---|
| 463 | } |
|---|
| 464 | |
|---|
| 465 | static void DHL_PSI_ParseServiceListDescriptor(DS_U8 *p_desc, memId_t memId, dvb_service_list_descriptor_t **pp_service_list) |
|---|
| 466 | { |
|---|
| 467 | (*pp_service_list) = 0; |
|---|
| 468 | if (p_desc[1] < 3) return; |
|---|
| 469 | (*pp_service_list) = (dvb_service_list_descriptor_t *)memChainAlloc(memId, sizeof(dvb_service_list_descriptor_t)); |
|---|
| 470 | (*pp_service_list)->numServices = p_desc[1]/3; |
|---|
| 471 | (*pp_service_list)->p_service = (dvb_service_t *)memChainAlloc(memId, sizeof(dvb_service_t)*((*pp_service_list)->numServices)); |
|---|
| 472 | for (int i=0; i < (*pp_service_list)->numServices; i++) |
|---|
| 473 | { |
|---|
| 474 | (*pp_service_list)->p_service[i].service_id = (p_desc[i*3+2] << 8) + p_desc[i*3+3]; |
|---|
| 475 | (*pp_service_list)->p_service[i].service_type = p_desc[i*3+4]; |
|---|
| 476 | } |
|---|
| 477 | } |
|---|
| 478 | |
|---|
| 479 | static int DHL_PSI_ParseTSInformationDescriptor(DS_U8* p, memId_t memId, arib_ts_information_descriptor_t **pp_ts_info) |
|---|
| 480 | { |
|---|
| 481 | if (p[1] < 2) return DHL_FAIL_INVALID_SIZE; |
|---|
| 482 | |
|---|
| 483 | arib_ts_information_descriptor_t *p_ts_info = *pp_ts_info = (arib_ts_information_descriptor_t *)memChainAlloc(memId,sizeof(arib_ts_information_descriptor_t)); |
|---|
| 484 | p_ts_info->remote_control_key_id = p[2]; |
|---|
| 485 | p_ts_info->ts_name_length = (p[3]>>2) & 0x3F; |
|---|
| 486 | p_ts_info->transmission_type_count = p[3]&0x03; |
|---|
| 487 | |
|---|
| 488 | if (p_ts_info->ts_name_length) |
|---|
| 489 | { |
|---|
| 490 | p_ts_info->ts_name = (DS_U8 *)memChainAlloc(memId, p_ts_info->ts_name_length); |
|---|
| 491 | memcpy(p_ts_info->ts_name, &p[4], p_ts_info->ts_name_length); |
|---|
| 492 | } |
|---|
| 493 | |
|---|
| 494 | if (!p_ts_info->transmission_type_count) return 0; |
|---|
| 495 | |
|---|
| 496 | arib_transmission_type_t *p_tx_type = p_ts_info->transmission_type = (arib_transmission_type_t *)memChainAlloc(memId, sizeof(arib_transmission_type_t)*p_ts_info->transmission_type_count); |
|---|
| 497 | int off = 4 + p_ts_info->ts_name_length; |
|---|
| 498 | for (int i=0; i < p_ts_info->transmission_type_count; i++) |
|---|
| 499 | { |
|---|
| 500 | p_tx_type[i].transmission_type_info = p[off]; |
|---|
| 501 | p_tx_type[i].number_of_service = p[off+1]; |
|---|
| 502 | p_tx_type[i].service_id = 0; |
|---|
| 503 | off += 2; |
|---|
| 504 | if (p_tx_type[i].number_of_service) |
|---|
| 505 | { |
|---|
| 506 | DS_U16 *p_service_id = p_tx_type[i].service_id = (DS_U16 *)memChainAlloc(memId, (p_tx_type[i].number_of_service) * sizeof(DS_U16)); |
|---|
| 507 | for (int j=0; j <p_tx_type[i].number_of_service; j++) |
|---|
| 508 | { |
|---|
| 509 | p_service_id[j] = (p[off]<<8)+p[off+1]; |
|---|
| 510 | off += 2; |
|---|
| 511 | } |
|---|
| 512 | } |
|---|
| 513 | } |
|---|
| 514 | return 0; |
|---|
| 515 | } |
|---|
| 516 | |
|---|
| 517 | |
|---|
| 518 | int DHL_PSI_ParseDvbNit(DS_U8 **sectionArr, bool b_actual, dvb_nit_t **pp_nit) |
|---|
| 519 | { |
|---|
| 520 | if (!sectionArr || !pp_nit || !sectionArr[0]) return DHL_FAIL_NULL_POINTER; |
|---|
| 521 | int numSections = get_last_section_number(sectionArr[0]) + 1; |
|---|
| 522 | /* now verify all other sections are present */ |
|---|
| 523 | for (int i=1; i<numSections; i++) if (sectionArr[i] == 0) return (DHL_FAIL_NULL_POINTER); |
|---|
| 524 | |
|---|
| 525 | // First pass, we verify section syntax and count the number of programs |
|---|
| 526 | int numStreams = 0; |
|---|
| 527 | for (int i = 0; i < numSections; ++i) |
|---|
| 528 | { |
|---|
| 529 | DS_U8* p = sectionArr[i]; |
|---|
| 530 | |
|---|
| 531 | if ( (b_actual && p[SECTION_TID] != DVB_TID_network_information_section_actual) || |
|---|
| 532 | (!b_actual && p[SECTION_TID] != DVB_TID_network_information_section_other) ) |
|---|
| 533 | { |
|---|
| 534 | DST_Printf("NIT: Bad table ID. (0x%02X)", p[SECTION_TID]); |
|---|
| 535 | return DHL_FAIL_INVALID_TABLEID; |
|---|
| 536 | } |
|---|
| 537 | |
|---|
| 538 | if ((p[SECTION_LEN_HI] & 0x80) != 0x80) DST_Printf("NIT: section_syntax_indicator not set"); |
|---|
| 539 | |
|---|
| 540 | // Counts number of transport_stream. |
|---|
| 541 | int network_descriptor_length = ((p[8]<<8) + p[9]) & 0xFFF; |
|---|
| 542 | int transport_loop_length = ((p[10+network_descriptor_length]<<8) + p[11+network_descriptor_length]) & 0xFFF; |
|---|
| 543 | p = §ionArr[i][12+network_descriptor_length]; |
|---|
| 544 | for(int k=0; k<transport_loop_length; ) |
|---|
| 545 | { |
|---|
| 546 | int original_network_id = ((p[k+2]<<8)+p[k+3]); |
|---|
| 547 | if (original_network_id) numStreams++; |
|---|
| 548 | int transport_descriptor_length = ((p[k+4]<<8)+p[k+5]) & 0xFFF; |
|---|
| 549 | k += (6+transport_descriptor_length); |
|---|
| 550 | } |
|---|
| 551 | } |
|---|
| 552 | |
|---|
| 553 | /* create the memChain */ |
|---|
| 554 | memId_t memId = 0; |
|---|
| 555 | if (memChainCreate(&memId)) return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 556 | |
|---|
| 557 | dvb_nit_t *p_nit = (dvb_nit_t *)memChainAlloc(memId, sizeof(dvb_nit_t)); |
|---|
| 558 | if (!p_nit) |
|---|
| 559 | { |
|---|
| 560 | memChainDestroy(memId); |
|---|
| 561 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 562 | } |
|---|
| 563 | p_nit->num_transport_stream = numStreams; |
|---|
| 564 | if (numStreams) |
|---|
| 565 | { |
|---|
| 566 | p_nit->transport_streams = (transport_stream_t *)memChainAlloc(memId,sizeof(transport_stream_t)*numStreams); |
|---|
| 567 | if (!p_nit->transport_streams) |
|---|
| 568 | { |
|---|
| 569 | memChainDestroy(memId); |
|---|
| 570 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 571 | } |
|---|
| 572 | } |
|---|
| 573 | |
|---|
| 574 | // Now fill-out all the remaining fields over the all sections. |
|---|
| 575 | transport_stream_t *p_ts = p_nit->transport_streams; |
|---|
| 576 | for (int i = 0; i < numSections; ++i) |
|---|
| 577 | { |
|---|
| 578 | DS_U8* p = sectionArr[i]; |
|---|
| 579 | int network_id = ((p[SECTION_TID_EXT_HI] << 8) | p[SECTION_TID_EXT_LO]); |
|---|
| 580 | int version_number = (p[SECTION_VERSION] & SECTION_VERSION_MASK) >> SECTION_VERSION_SHIFT; |
|---|
| 581 | int network_descriptor_length = ((p[8]<<8) + p[9]) & 0xFFF; |
|---|
| 582 | int last_section_number = p[SECTION_NUM_LAST]; |
|---|
| 583 | |
|---|
| 584 | if (i == 0) /* First section */ |
|---|
| 585 | { |
|---|
| 586 | p_nit->network_id = network_id; |
|---|
| 587 | p_nit->version_number = version_number; |
|---|
| 588 | p_nit->section_number = p[SECTION_NUM]; |
|---|
| 589 | p_nit->last_section_number = last_section_number; |
|---|
| 590 | p_nit->network_descriptor_length = network_descriptor_length; |
|---|
| 591 | if (network_descriptor_length) |
|---|
| 592 | { |
|---|
| 593 | DS_U8 *p_desc = 0; |
|---|
| 594 | p_nit->network_descriptors = (DS_U8 *)memChainAlloc(memId, network_descriptor_length); |
|---|
| 595 | memcpy(p_nit->network_descriptors, &p[10], network_descriptor_length); |
|---|
| 596 | int err=GetMpegDescriptor(p_nit->network_descriptors, network_descriptor_length, DVB_TAG_network_name_descriptor, 0, &p_desc); |
|---|
| 597 | if (!err) DHL_PSI_ParseNetworkNameDescriptor( p_desc, memId, &(p_nit->p_network_name), &(p_nit->network_name_length) ); |
|---|
| 598 | err=GetMpegDescriptor( p_nit->network_descriptors, network_descriptor_length, ARIB_TAG_system_management_descriptor, 0, &p_desc ); |
|---|
| 599 | if (!err) |
|---|
| 600 | { |
|---|
| 601 | if (!DHL_PSI_ParseSystemManagementDescriptor( p_desc, &p_nit->system_management_id )) |
|---|
| 602 | p_nit->b_system_management_id = true; |
|---|
| 603 | } |
|---|
| 604 | } |
|---|
| 605 | } |
|---|
| 606 | int transport_loop_length = ((p[10+network_descriptor_length]<<8) + p[11+network_descriptor_length]) & 0xFFF; |
|---|
| 607 | p = §ionArr[i][12+network_descriptor_length]; |
|---|
| 608 | for(int k=0; k < transport_loop_length; ) |
|---|
| 609 | { |
|---|
| 610 | int original_network_id = ((p[k+2]<<8)+p[k+3]); |
|---|
| 611 | int transport_descriptor_length = ((p[k+4]<<8)+p[k+5]) & 0xFFF; |
|---|
| 612 | if (original_network_id) |
|---|
| 613 | { |
|---|
| 614 | p_ts->transport_stream_id = ((p[k+0]<<8)+p[k+1]); |
|---|
| 615 | p_ts->original_network_id = original_network_id; |
|---|
| 616 | p_ts->transport_descriptor_length = transport_descriptor_length; |
|---|
| 617 | if ( transport_descriptor_length ) |
|---|
| 618 | { |
|---|
| 619 | p_ts->transport_descriptors = (DS_U8 *)memChainAlloc( memId, transport_descriptor_length); |
|---|
| 620 | if (!p_ts->transport_descriptors) |
|---|
| 621 | { |
|---|
| 622 | memChainDestroy(memId); |
|---|
| 623 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 624 | } |
|---|
| 625 | memcpy( p_ts->transport_descriptors, &p[k+6], transport_descriptor_length); |
|---|
| 626 | DS_U8* p_desc = 0; |
|---|
| 627 | int err=GetMpegDescriptor( p_ts->transport_descriptors, transport_descriptor_length, |
|---|
| 628 | DVB_TAG_service_list_descriptor, 0, &p_desc ); |
|---|
| 629 | if (!err) DHL_PSI_ParseServiceListDescriptor( p_desc, memId, &(p_ts->p_service_list) ); |
|---|
| 630 | err=GetMpegDescriptor( p_ts->transport_descriptors, transport_descriptor_length, |
|---|
| 631 | ARIB_TAG_ts_information_descriptor, 0, &p_desc ); |
|---|
| 632 | if (!err) DHL_PSI_ParseTSInformationDescriptor( p_desc, memId, &(p_ts->p_ts_info) ); |
|---|
| 633 | } |
|---|
| 634 | p_ts++; |
|---|
| 635 | } |
|---|
| 636 | k += (6+transport_descriptor_length); |
|---|
| 637 | } |
|---|
| 638 | } |
|---|
| 639 | *(((memId_t *)p_nit)-1) = memId; |
|---|
| 640 | *pp_nit = p_nit; |
|---|
| 641 | return 0; |
|---|
| 642 | } |
|---|
| 643 | |
|---|
| 644 | static void DHL_PSI_ParseSIParameterDescriptor( DS_U8 *p, memId_t memId, arib_si_parameter_descriptor_t **pp_si_parameter ) |
|---|
| 645 | { |
|---|
| 646 | *pp_si_parameter = 0; |
|---|
| 647 | if ( p[1] < 3 ) return; |
|---|
| 648 | |
|---|
| 649 | arib_si_parameter_descriptor_t *p_si_parameter = *pp_si_parameter = (arib_si_parameter_descriptor_t *)memChainAlloc(memId, sizeof(arib_si_parameter_descriptor_t)); |
|---|
| 650 | p_si_parameter->parameter_version = p[2]; |
|---|
| 651 | p_si_parameter->update_time = ( p[3] << 8 ) + p[4]; |
|---|
| 652 | if ( p[1] < 5) return; |
|---|
| 653 | int numTable = 0; |
|---|
| 654 | for (int i = 5; i <= p[1];) |
|---|
| 655 | { |
|---|
| 656 | int table_id = p[i]; |
|---|
| 657 | int table_description_length = p[i+1]; |
|---|
| 658 | if (table_id) numTable++; |
|---|
| 659 | i += (2+table_description_length); |
|---|
| 660 | } |
|---|
| 661 | if (numTable == 0) return; |
|---|
| 662 | p_si_parameter->numTable = numTable; |
|---|
| 663 | arib_table_description_t *p_table_description = p_si_parameter->table_description = (arib_table_description_t *)memChainAlloc(memId, numTable*sizeof(arib_table_description_t)); |
|---|
| 664 | for (int i = 5; i <= p[1];) |
|---|
| 665 | { |
|---|
| 666 | int table_id = p[i]; |
|---|
| 667 | int table_description_length = p[i+1]; |
|---|
| 668 | if (table_id) |
|---|
| 669 | { |
|---|
| 670 | p_table_description->table_id = table_id; |
|---|
| 671 | p_table_description->table_description_length = table_description_length; |
|---|
| 672 | if (p_table_description->table_description_length) |
|---|
| 673 | { |
|---|
| 674 | p_table_description->table_description_byte = (DS_U8 *)memChainAlloc(memId, p_table_description->table_description_length); |
|---|
| 675 | memcpy(p_table_description->table_description_byte, &p[i+2], p_table_description->table_description_length); |
|---|
| 676 | } |
|---|
| 677 | p_table_description++; |
|---|
| 678 | } |
|---|
| 679 | i += (2+table_description_length); |
|---|
| 680 | } |
|---|
| 681 | } |
|---|
| 682 | |
|---|
| 683 | static void DHL_PSI_ParseExtendedBroadcasterDescriptor(DS_U8 *p_desc, memId_t memId, arib_extended_broadcaster_descriptor_t **pp_ex_broad) |
|---|
| 684 | { |
|---|
| 685 | DS_U8 *p = p_desc; |
|---|
| 686 | arib_extended_broadcaster_descriptor_t *p_ex_broad; |
|---|
| 687 | int i, j, len, off; |
|---|
| 688 | int num, numId; |
|---|
| 689 | |
|---|
| 690 | if (!p_desc || !pp_ex_broad || !memId) |
|---|
| 691 | return; |
|---|
| 692 | |
|---|
| 693 | len = p_desc[1]; |
|---|
| 694 | if ( len<4 ) |
|---|
| 695 | return; |
|---|
| 696 | |
|---|
| 697 | p_ex_broad = (arib_extended_broadcaster_descriptor_t *)memChainAlloc(memId, sizeof(arib_extended_broadcaster_descriptor_t)); |
|---|
| 698 | p_ex_broad->broadcaster_type = (p[2] >> 4) & 0x0F; |
|---|
| 699 | |
|---|
| 700 | off = 3; |
|---|
| 701 | |
|---|
| 702 | if ( p_ex_broad->broadcaster_type == 0x1 ) |
|---|
| 703 | { |
|---|
| 704 | p_ex_broad->terrestrial_broadcaster_id = (p[off+0] << 8) + p[off+1]; |
|---|
| 705 | p_ex_broad->num_affiliation_id = (p[off+2] & 0xF0) >> 4; |
|---|
| 706 | p_ex_broad->num_broadcaster_id = p[off+2] & 0xF; |
|---|
| 707 | off += 3; |
|---|
| 708 | |
|---|
| 709 | if ( p_ex_broad->num_affiliation_id ) |
|---|
| 710 | { |
|---|
| 711 | num = p_ex_broad->num_affiliation_id; |
|---|
| 712 | p_ex_broad->affiliation_id = (DS_U8 *)memChainAlloc(memId, num); |
|---|
| 713 | memcpy(p_ex_broad->affiliation_id, &p[off], num); |
|---|
| 714 | off += num; |
|---|
| 715 | } |
|---|
| 716 | |
|---|
| 717 | if ( p_ex_broad->num_broadcaster_id ) |
|---|
| 718 | { |
|---|
| 719 | numId = p_ex_broad->num_broadcaster_id; |
|---|
| 720 | p_ex_broad->origin_network_id = (DS_U16 *)memChainAlloc(memId, numId*2); |
|---|
| 721 | p_ex_broad->broadcaster_id = (DS_U8 *)memChainAlloc(memId, numId); |
|---|
| 722 | |
|---|
| 723 | for ( i=0, j=0 ; j < p_ex_broad->num_broadcaster_id ; i++, j+=3 ) |
|---|
| 724 | { |
|---|
| 725 | p_ex_broad->origin_network_id[i] = (p[off+0] << 8) + p[off+1]; |
|---|
| 726 | p_ex_broad->broadcaster_id[i] = p[off+2]; |
|---|
| 727 | off += 3; |
|---|
| 728 | p_ex_broad->origin_network_id++; |
|---|
| 729 | p_ex_broad->broadcaster_id++; |
|---|
| 730 | } |
|---|
| 731 | } |
|---|
| 732 | } |
|---|
| 733 | else if ( p_ex_broad->broadcaster_type == 0x2 ) |
|---|
| 734 | { |
|---|
| 735 | p_ex_broad->terrestrial_broadcaster_id = (p[off+0] << 8) + p[off+1]; |
|---|
| 736 | p_ex_broad->num_affiliation_id = (p[off+2] >> 4) & 0xF; |
|---|
| 737 | p_ex_broad->num_broadcaster_id = p[off+2] & 0xF; |
|---|
| 738 | off += 3; |
|---|
| 739 | |
|---|
| 740 | if ( p_ex_broad->num_affiliation_id ) |
|---|
| 741 | { |
|---|
| 742 | num = p_ex_broad->num_affiliation_id; |
|---|
| 743 | p_ex_broad->affiliation_id = (DS_U8 *)memChainAlloc(memId, num); |
|---|
| 744 | memcpy(p_ex_broad->affiliation_id, &p[off], num); |
|---|
| 745 | off += num; |
|---|
| 746 | } |
|---|
| 747 | |
|---|
| 748 | if ( p_ex_broad->num_broadcaster_id ) |
|---|
| 749 | { |
|---|
| 750 | numId = p_ex_broad->num_broadcaster_id; |
|---|
| 751 | p_ex_broad->origin_network_id = (DS_U16 *)memChainAlloc(memId, numId*2); |
|---|
| 752 | p_ex_broad->broadcaster_id = (DS_U8 *)memChainAlloc(memId, numId); |
|---|
| 753 | |
|---|
| 754 | for ( i=0, j=0 ; j < p_ex_broad->num_broadcaster_id ; i++, j+=3 ) |
|---|
| 755 | { |
|---|
| 756 | p_ex_broad->origin_network_id[i] = (p[off+0] << 8) + p[off+1]; |
|---|
| 757 | p_ex_broad->broadcaster_id[i] = p[off+2]; |
|---|
| 758 | off += 3; |
|---|
| 759 | p_ex_broad->origin_network_id++; |
|---|
| 760 | p_ex_broad->broadcaster_id++; |
|---|
| 761 | } |
|---|
| 762 | } |
|---|
| 763 | } |
|---|
| 764 | else |
|---|
| 765 | { |
|---|
| 766 | p_ex_broad->affiliation_id = (DS_U8 *)0; |
|---|
| 767 | p_ex_broad->origin_network_id = (DS_U16 *)0; |
|---|
| 768 | p_ex_broad->broadcaster_id = (DS_U8 *)0; |
|---|
| 769 | } |
|---|
| 770 | |
|---|
| 771 | *pp_ex_broad = p_ex_broad; |
|---|
| 772 | } |
|---|
| 773 | |
|---|
| 774 | int DHL_PSI_ParseDvbBit(DS_U8 **sectionArr, dvb_bit_t **pp_bit) |
|---|
| 775 | { |
|---|
| 776 | int err = 0; |
|---|
| 777 | int i, k; |
|---|
| 778 | int len, lenBroadcaster; |
|---|
| 779 | int numBroadcaster; |
|---|
| 780 | int numSections; |
|---|
| 781 | // int index; |
|---|
| 782 | const DS_U8 *p; |
|---|
| 783 | dvb_bit_t *p_bit = 0; |
|---|
| 784 | int version_number; |
|---|
| 785 | int first_descriptor_length; |
|---|
| 786 | // bool current_next_indicator; |
|---|
| 787 | // bool broadcast_view_propriety; |
|---|
| 788 | memId_t memId = 0; |
|---|
| 789 | // memChainSetup_t memSetup = {MEM_LIMIT,0,0}; |
|---|
| 790 | broadcaster_t *p_broadcaster; |
|---|
| 791 | |
|---|
| 792 | if ((sectionArr == 0) || (pp_bit == 0)) |
|---|
| 793 | { |
|---|
| 794 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 795 | } |
|---|
| 796 | |
|---|
| 797 | if (sectionArr[0] == 0) |
|---|
| 798 | { |
|---|
| 799 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 800 | } |
|---|
| 801 | else |
|---|
| 802 | { |
|---|
| 803 | numSections = get_last_section_number(sectionArr[0]) + 1; |
|---|
| 804 | } |
|---|
| 805 | |
|---|
| 806 | /* now verify all other sections are present */ |
|---|
| 807 | for (i=1; i<numSections; i++) |
|---|
| 808 | { |
|---|
| 809 | if (sectionArr[i] == 0) { |
|---|
| 810 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 811 | } |
|---|
| 812 | } |
|---|
| 813 | |
|---|
| 814 | /* |
|---|
| 815 | * First pass, we verify section syntax and count the number of broadcaster. |
|---|
| 816 | */ |
|---|
| 817 | numBroadcaster = 0; |
|---|
| 818 | for (i = 0; i < numSections; ++i) |
|---|
| 819 | { |
|---|
| 820 | p = sectionArr[i]; |
|---|
| 821 | |
|---|
| 822 | if( p == 0 ) |
|---|
| 823 | { |
|---|
| 824 | DST_Printf( "%s: 0 section", __func__); |
|---|
| 825 | return DHL_FAIL_NULL_POINTER; |
|---|
| 826 | } |
|---|
| 827 | |
|---|
| 828 | if ( p[SECTION_TID] != DVB_TID_broadcaster_information_section ) |
|---|
| 829 | { |
|---|
| 830 | /* |
|---|
| 831 | * This thing isn't a PAT. Stop right here. |
|---|
| 832 | */ |
|---|
| 833 | DST_Printf("BIT: Bad table ID. (0x%02X)", p[SECTION_TID]); |
|---|
| 834 | err = DHL_FAIL_INVALID_TABLEID; |
|---|
| 835 | goto ParseExit; |
|---|
| 836 | } |
|---|
| 837 | |
|---|
| 838 | if ((p[SECTION_LEN_HI] & 0x80) != 0x80) |
|---|
| 839 | { |
|---|
| 840 | DST_Printf("BIT: section_syntax_indicator not set"); |
|---|
| 841 | } |
|---|
| 842 | |
|---|
| 843 | len = ((p[1]<<8) + p[2]) & 0xFFF; |
|---|
| 844 | |
|---|
| 845 | /* |
|---|
| 846 | * Counts number of broadcaster. |
|---|
| 847 | */ |
|---|
| 848 | // broadcast_view_propriety = ((p[8] >> 4) & 0x1); |
|---|
| 849 | first_descriptor_length = ((p[8]<<8) + p[9]) & 0xFFF; |
|---|
| 850 | lenBroadcaster = len - (7+first_descriptor_length+4); |
|---|
| 851 | p = §ionArr[i][10+first_descriptor_length]; |
|---|
| 852 | |
|---|
| 853 | for ( k=0 ; k < lenBroadcaster ; ) |
|---|
| 854 | { |
|---|
| 855 | int broadcaster_id; |
|---|
| 856 | int broadcaster_descriptor_length; |
|---|
| 857 | |
|---|
| 858 | broadcaster_id = p[k+0]; |
|---|
| 859 | broadcaster_descriptor_length = ((p[k+1]<<8) + p[k+2]) & 0xFFF; |
|---|
| 860 | |
|---|
| 861 | if ( broadcaster_id ) |
|---|
| 862 | numBroadcaster++; |
|---|
| 863 | |
|---|
| 864 | k += 3+broadcaster_descriptor_length; |
|---|
| 865 | } |
|---|
| 866 | } |
|---|
| 867 | |
|---|
| 868 | /* create the memChain */ |
|---|
| 869 | err = memChainCreate(&memId); |
|---|
| 870 | |
|---|
| 871 | if (err) |
|---|
| 872 | { |
|---|
| 873 | goto ParseExit; |
|---|
| 874 | } |
|---|
| 875 | |
|---|
| 876 | p_bit = (dvb_bit_t *)((memId_t *)(memChainAlloc(memId,sizeof(dvb_bit_t)+sizeof(memId_t))) + 1); |
|---|
| 877 | checkMemoryError(p_bit); |
|---|
| 878 | |
|---|
| 879 | p_bit->num_broadcaster = numBroadcaster; |
|---|
| 880 | |
|---|
| 881 | if ( numBroadcaster > 0 ) |
|---|
| 882 | { |
|---|
| 883 | p_bit->broadcaster = (broadcaster_t *)memChainAlloc(memId,sizeof(broadcaster_t)*numBroadcaster); |
|---|
| 884 | checkMemoryError(p_bit->broadcaster); |
|---|
| 885 | } |
|---|
| 886 | else |
|---|
| 887 | { |
|---|
| 888 | p_bit->broadcaster = (broadcaster_t *)0; |
|---|
| 889 | } |
|---|
| 890 | |
|---|
| 891 | /* |
|---|
| 892 | * Now fill-out all the remaining fields over the all sections. |
|---|
| 893 | */ |
|---|
| 894 | // index = 0; |
|---|
| 895 | p_bit->first_descriptors = (DS_U8 *)0; |
|---|
| 896 | p_broadcaster = p_bit->broadcaster; |
|---|
| 897 | |
|---|
| 898 | for (i = 0 ; i < numSections ; ++i) |
|---|
| 899 | { |
|---|
| 900 | DS_U8 last_section_number; |
|---|
| 901 | int original_network_id; |
|---|
| 902 | |
|---|
| 903 | p = §ionArr[i][0]; |
|---|
| 904 | len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3; // lenth + 3 ( p[0] (TID) + p[1] + p[2] ) |
|---|
| 905 | |
|---|
| 906 | original_network_id = ((p[SECTION_TID_EXT_HI] << 8) | p[SECTION_TID_EXT_LO]); |
|---|
| 907 | version_number = (p[SECTION_VERSION] & SECTION_VERSION_MASK) >> |
|---|
| 908 | SECTION_VERSION_SHIFT; |
|---|
| 909 | // current_next_indicator = (p[SECTION_VERSION] & SECTION_CNI_MASK) != 0; |
|---|
| 910 | first_descriptor_length = ((p[8]<<8) + p[9]) & 0xFFF; |
|---|
| 911 | last_section_number = p[SECTION_NUM_LAST]; |
|---|
| 912 | |
|---|
| 913 | if (i == 0) |
|---|
| 914 | { |
|---|
| 915 | /* First section */ |
|---|
| 916 | p_bit->original_network_id = original_network_id; |
|---|
| 917 | p_bit->version_number = version_number; |
|---|
| 918 | p_bit->section_number = p[SECTION_NUM]; |
|---|
| 919 | p_bit->last_section_number = last_section_number; |
|---|
| 920 | |
|---|
| 921 | if ( p_bit->first_descriptors == (DS_U8 *)0 && first_descriptor_length ) |
|---|
| 922 | { |
|---|
| 923 | DS_U8 *p_desc = (DS_U8 *)0; |
|---|
| 924 | |
|---|
| 925 | p_bit->first_descriptor_length = first_descriptor_length; |
|---|
| 926 | p_bit->first_descriptors = (DS_U8 *)memChainAlloc(memId, first_descriptor_length); |
|---|
| 927 | memcpy(p_bit->first_descriptors, &p[10], first_descriptor_length); |
|---|
| 928 | /* |
|---|
| 929 | * Parse SI Parameter Descriptor |
|---|
| 930 | */ |
|---|
| 931 | err = GetMpegDescriptor( p_bit->first_descriptors, |
|---|
| 932 | first_descriptor_length, |
|---|
| 933 | ARIB_TAG_si_parameter_descriptor, |
|---|
| 934 | 0, /* only find first one. */ |
|---|
| 935 | &p_desc ); |
|---|
| 936 | |
|---|
| 937 | if ( p_desc && !err ) |
|---|
| 938 | { |
|---|
| 939 | DHL_PSI_ParseSIParameterDescriptor( p_desc, memId, &(p_bit->p_si_parameter)); |
|---|
| 940 | } |
|---|
| 941 | else |
|---|
| 942 | { |
|---|
| 943 | // DST_Printf("BIT: cannot find si_parameter descriptor.\n"); |
|---|
| 944 | p_bit->p_si_parameter = (arib_si_parameter_descriptor_t *)0; |
|---|
| 945 | } |
|---|
| 946 | |
|---|
| 947 | } |
|---|
| 948 | } |
|---|
| 949 | else |
|---|
| 950 | { |
|---|
| 951 | if (p_bit->original_network_id != original_network_id) |
|---|
| 952 | DST_Printf("BIT: Inconsistent original_network_id (0x%x, 0x%x)\n", p_bit->original_network_id, original_network_id); |
|---|
| 953 | if (p_bit->version_number != version_number) |
|---|
| 954 | DST_Printf("BIT: inconsistent version_number (0x%x, 0x%x)\n", p_bit->version_number, version_number); |
|---|
| 955 | if (p_bit->first_descriptor_length != first_descriptor_length) |
|---|
| 956 | DST_Printf("BIT: Inconsistent first_descriptor_length (0x%x, 0x%x)\n", p_bit->first_descriptor_length, first_descriptor_length ); |
|---|
| 957 | if (p_bit->last_section_number != last_section_number ) |
|---|
| 958 | DST_Printf("BIT: Inconsistent last_section_number (0x%x, 0x%x)\n", p_bit->last_section_number, last_section_number); |
|---|
| 959 | } |
|---|
| 960 | |
|---|
| 961 | lenBroadcaster = len - first_descriptor_length - 4 - 3 - 7; |
|---|
| 962 | |
|---|
| 963 | if ( !p_broadcaster && lenBroadcaster ) |
|---|
| 964 | { |
|---|
| 965 | DST_Printf("BIT: broadcaster length is not 0, but broadcaster is 0.\n"); |
|---|
| 966 | err = DHL_FAIL_INVALID_TABLEID; |
|---|
| 967 | goto ParseExit; |
|---|
| 968 | |
|---|
| 969 | } |
|---|
| 970 | |
|---|
| 971 | p = §ionArr[i][10+first_descriptor_length]; |
|---|
| 972 | |
|---|
| 973 | for ( k = 0 ; k < lenBroadcaster ; ) |
|---|
| 974 | { |
|---|
| 975 | int broadcaster_id; |
|---|
| 976 | int broadcaster_descriptor_length; |
|---|
| 977 | |
|---|
| 978 | broadcaster_id = p[k+0]; |
|---|
| 979 | broadcaster_descriptor_length = ((p[k+1]<<8) + p[k+2]) & 0xFFF; |
|---|
| 980 | p_broadcaster->broadcaster_id = broadcaster_id; |
|---|
| 981 | p_broadcaster->broadcaster_descriptor_length = broadcaster_descriptor_length; |
|---|
| 982 | |
|---|
| 983 | if ( broadcaster_descriptor_length ) |
|---|
| 984 | { |
|---|
| 985 | DS_U8 *p_desc = (DS_U8 *)0; |
|---|
| 986 | |
|---|
| 987 | p_broadcaster->broadcaster_descriptors = (DS_U8 *)memChainAlloc(memId, broadcaster_descriptor_length); |
|---|
| 988 | |
|---|
| 989 | if ( !(p_broadcaster->broadcaster_descriptors) ) |
|---|
| 990 | { |
|---|
| 991 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 992 | goto ParseExit; |
|---|
| 993 | } |
|---|
| 994 | |
|---|
| 995 | memcpy(p_broadcaster->broadcaster_descriptors, &p[k+3], broadcaster_descriptor_length); |
|---|
| 996 | |
|---|
| 997 | /* |
|---|
| 998 | * Parse Extended Broadcaster Descriptor |
|---|
| 999 | */ |
|---|
| 1000 | err = GetMpegDescriptor( p_broadcaster->broadcaster_descriptors, |
|---|
| 1001 | broadcaster_descriptor_length, |
|---|
| 1002 | ARIB_TAG_extended_broadcaster_descriptor, |
|---|
| 1003 | 0, /* only find first one. */ |
|---|
| 1004 | &p_desc ); |
|---|
| 1005 | |
|---|
| 1006 | if ( p_desc && !err ) |
|---|
| 1007 | { |
|---|
| 1008 | DHL_PSI_ParseExtendedBroadcasterDescriptor(p_desc, memId, &(p_broadcaster->p_ex_broad)); |
|---|
| 1009 | } |
|---|
| 1010 | else |
|---|
| 1011 | { |
|---|
| 1012 | // DST_Printf("BIT: cannot find extended_broadcaster descriptor.\n"); |
|---|
| 1013 | p_broadcaster->p_ex_broad = (arib_extended_broadcaster_descriptor_t *)0; |
|---|
| 1014 | } |
|---|
| 1015 | |
|---|
| 1016 | p_desc = (DS_U8 *)0; |
|---|
| 1017 | |
|---|
| 1018 | /* |
|---|
| 1019 | * Parse SI Parameter Descriptor |
|---|
| 1020 | */ |
|---|
| 1021 | err = GetMpegDescriptor( p_broadcaster->broadcaster_descriptors, |
|---|
| 1022 | broadcaster_descriptor_length, |
|---|
| 1023 | ARIB_TAG_si_parameter_descriptor, |
|---|
| 1024 | 0, /* only find first one. */ |
|---|
| 1025 | &p_desc ); |
|---|
| 1026 | |
|---|
| 1027 | if ( p_desc && !err ) |
|---|
| 1028 | { |
|---|
| 1029 | DHL_PSI_ParseSIParameterDescriptor( p_desc, memId, &(p_broadcaster->p_si_parameter)); |
|---|
| 1030 | } |
|---|
| 1031 | else |
|---|
| 1032 | { |
|---|
| 1033 | // DST_Printf("BIT: cannot find si_parameter descriptor.\n"); |
|---|
| 1034 | p_broadcaster->p_si_parameter = (arib_si_parameter_descriptor_t *)0; |
|---|
| 1035 | } |
|---|
| 1036 | } |
|---|
| 1037 | else |
|---|
| 1038 | { |
|---|
| 1039 | p_broadcaster->broadcaster_descriptors = (DS_U8 *)0; |
|---|
| 1040 | p_broadcaster->p_ex_broad = (arib_extended_broadcaster_descriptor_t *)0; |
|---|
| 1041 | p_broadcaster->p_si_parameter = (arib_si_parameter_descriptor_t *)0; |
|---|
| 1042 | } |
|---|
| 1043 | |
|---|
| 1044 | k += 3+broadcaster_descriptor_length; |
|---|
| 1045 | p_broadcaster++; |
|---|
| 1046 | } |
|---|
| 1047 | } |
|---|
| 1048 | |
|---|
| 1049 | err = 0; |
|---|
| 1050 | *(((memId_t *)p_bit)-1) = memId; |
|---|
| 1051 | DST_Printf("p_bit = 0x%x\n",(int)memId); |
|---|
| 1052 | *pp_bit = p_bit; |
|---|
| 1053 | memId = 0; /* Don't delete below */ |
|---|
| 1054 | |
|---|
| 1055 | ParseExit: |
|---|
| 1056 | if (memId) |
|---|
| 1057 | { |
|---|
| 1058 | /* delete the patSection memory */ |
|---|
| 1059 | memChainDestroy(memId); |
|---|
| 1060 | } |
|---|
| 1061 | |
|---|
| 1062 | return(err); |
|---|
| 1063 | } |
|---|
| 1064 | |
|---|
| 1065 | static void DHL_PSI_ParseLocalTimeOffsetDescriptor( DS_U8 *p, int numItems, dvb_local_time_t *p_desc ) |
|---|
| 1066 | { |
|---|
| 1067 | int len, idx; |
|---|
| 1068 | int num_lto; |
|---|
| 1069 | dvb_local_time_t *p_lt; |
|---|
| 1070 | DS_U8 *puc; |
|---|
| 1071 | |
|---|
| 1072 | if ( !p || !p_desc ) |
|---|
| 1073 | return; |
|---|
| 1074 | |
|---|
| 1075 | len = p[1]; |
|---|
| 1076 | num_lto = len / 13; |
|---|
| 1077 | |
|---|
| 1078 | p_lt = p_desc; |
|---|
| 1079 | for (idx=0; idx<num_lto; idx++) |
|---|
| 1080 | { |
|---|
| 1081 | puc = &p[idx*13 + 2]; |
|---|
| 1082 | |
|---|
| 1083 | p_lt->country_code = (puc[2]<<16)+(puc[1]<<8)+puc[0]; |
|---|
| 1084 | p_lt->country_region_id = puc[3]>>2; |
|---|
| 1085 | p_lt->local_time_offset_polarity = puc[3] & 1; |
|---|
| 1086 | p_lt->local_time_offset = (puc[4]<<8)+puc[5]; |
|---|
| 1087 | p_lt->time_of_change_date = (puc[6]<<8)+puc[7]; |
|---|
| 1088 | p_lt->time_of_change_time = (puc[8]<<16)+(puc[9]<<8)+puc[10]; |
|---|
| 1089 | p_lt->next_time_offset = (puc[11]<<8)+puc[12]; |
|---|
| 1090 | |
|---|
| 1091 | p_lt++; |
|---|
| 1092 | } |
|---|
| 1093 | } |
|---|
| 1094 | |
|---|
| 1095 | int DHL_PSI_ParseDvbTot(DS_U8 *sectionArr, dvb_tot_t **pp_tot) |
|---|
| 1096 | { |
|---|
| 1097 | int err = 0; |
|---|
| 1098 | const DS_U8 *p; |
|---|
| 1099 | int len, descriptor_length; |
|---|
| 1100 | dvb_tot_t *p_tot = 0; |
|---|
| 1101 | memId_t memId = 0; |
|---|
| 1102 | // memChainSetup_t memSetup = {MEM_LIMIT,0,0}; |
|---|
| 1103 | |
|---|
| 1104 | if (sectionArr == 0 || (pp_tot == 0)) |
|---|
| 1105 | { |
|---|
| 1106 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 1107 | } |
|---|
| 1108 | |
|---|
| 1109 | p = sectionArr; |
|---|
| 1110 | if ( p[SECTION_TID] != DVB_TID_time_offset_section ) |
|---|
| 1111 | { |
|---|
| 1112 | /* |
|---|
| 1113 | * This thing isn't a TDT. Stop right here. |
|---|
| 1114 | */ |
|---|
| 1115 | DST_Printf("TOT: Bad table ID. (0x%02X)\n", p[SECTION_TID]); |
|---|
| 1116 | err = DHL_FAIL_INVALID_TABLEID; |
|---|
| 1117 | goto ParseExit; |
|---|
| 1118 | } |
|---|
| 1119 | |
|---|
| 1120 | if ((p[SECTION_LEN_HI] & 0x80) != 0x00) { |
|---|
| 1121 | DST_Printf("TOT: section_syntax_indicator set\n"); |
|---|
| 1122 | } |
|---|
| 1123 | |
|---|
| 1124 | len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3; |
|---|
| 1125 | if ( len < 8 ) |
|---|
| 1126 | { |
|---|
| 1127 | err = DHL_FAIL_INVALID_TABLEID; |
|---|
| 1128 | goto ParseExit; |
|---|
| 1129 | } |
|---|
| 1130 | |
|---|
| 1131 | /* create the memChain */ |
|---|
| 1132 | err = memChainCreate(&memId); |
|---|
| 1133 | if (err) { |
|---|
| 1134 | goto ParseExit; |
|---|
| 1135 | } |
|---|
| 1136 | |
|---|
| 1137 | p_tot = (dvb_tot_t *)((memId_t *)(memChainAlloc(memId,sizeof(dvb_tot_t)+sizeof(memId_t))) + 1); |
|---|
| 1138 | checkMemoryError(p_tot); |
|---|
| 1139 | |
|---|
| 1140 | p_tot->date = (p[3]<<8)+p[4]; |
|---|
| 1141 | p_tot->time = (p[5]<<16)+(p[6]<<8)+p[7]; |
|---|
| 1142 | |
|---|
| 1143 | p_tot->p_lto = (dvb_local_time_offset_descriptor_t *)0; |
|---|
| 1144 | p_tot->descriptor_length = 0; |
|---|
| 1145 | p_tot->descriptors = (DS_U8 *)0; |
|---|
| 1146 | if ( len >= 11 ) |
|---|
| 1147 | { |
|---|
| 1148 | DS_U8 *p_desc = (DS_U8 *)0; |
|---|
| 1149 | dvb_local_time_t *p_lt; |
|---|
| 1150 | int numLocaltime; |
|---|
| 1151 | |
|---|
| 1152 | descriptor_length = ((p[8]<<8)+p[9]) & 0xFFF; |
|---|
| 1153 | if ( descriptor_length > 1024 ) |
|---|
| 1154 | { |
|---|
| 1155 | DST_Printf("TOT: too long descriptor length %d\n", descriptor_length); |
|---|
| 1156 | goto NoDescExit; |
|---|
| 1157 | } |
|---|
| 1158 | |
|---|
| 1159 | /* |
|---|
| 1160 | * Counts number of local_time. |
|---|
| 1161 | */ |
|---|
| 1162 | err=GetMpegDescriptor( (DS_U8 *)&p[10], |
|---|
| 1163 | descriptor_length, |
|---|
| 1164 | DVB_TAG_local_time_offset_descriptor, |
|---|
| 1165 | 0, |
|---|
| 1166 | &p_desc ); |
|---|
| 1167 | if (err==0 && p_desc) |
|---|
| 1168 | { |
|---|
| 1169 | numLocaltime = p_desc[1] / 13; |
|---|
| 1170 | if (numLocaltime <= 0) |
|---|
| 1171 | goto NoDescExit; |
|---|
| 1172 | |
|---|
| 1173 | p_tot->p_lto = (dvb_local_time_offset_descriptor_t *)memChainAlloc(memId, sizeof(dvb_local_time_offset_descriptor_t)); |
|---|
| 1174 | checkMemoryError(p_tot->p_lto); |
|---|
| 1175 | |
|---|
| 1176 | p_lt = p_tot->p_lto->p_local_time = (dvb_local_time_t *)memChainAlloc(memId, sizeof(dvb_local_time_t)*numLocaltime); |
|---|
| 1177 | checkMemoryError(p_tot->p_lto->p_local_time); |
|---|
| 1178 | |
|---|
| 1179 | p_tot->p_lto->i_num_local_time = numLocaltime; |
|---|
| 1180 | DHL_PSI_ParseLocalTimeOffsetDescriptor( p_desc, numLocaltime, p_lt ); |
|---|
| 1181 | } |
|---|
| 1182 | else |
|---|
| 1183 | { |
|---|
| 1184 | DST_Printf("TOT: cannot find local_time_offset descriptor.\n"); |
|---|
| 1185 | } |
|---|
| 1186 | } |
|---|
| 1187 | |
|---|
| 1188 | NoDescExit: |
|---|
| 1189 | err = 0; |
|---|
| 1190 | *(((memId_t *)p_tot)-1) = memId; |
|---|
| 1191 | *pp_tot = p_tot; |
|---|
| 1192 | memId = 0; /* Don't delete below */ |
|---|
| 1193 | |
|---|
| 1194 | ParseExit: |
|---|
| 1195 | |
|---|
| 1196 | if (memId) |
|---|
| 1197 | { |
|---|
| 1198 | /* delete the patSection memory */ |
|---|
| 1199 | memChainDestroy(memId); |
|---|
| 1200 | } |
|---|
| 1201 | |
|---|
| 1202 | return(err); |
|---|
| 1203 | } |
|---|
| 1204 | |
|---|
| 1205 | static void DHL_PSI_ParseDataContentDescriptor( DS_U8 *p, memId_t memId, arib_data_content_descriptor_t **pp_data_content ) |
|---|
| 1206 | { |
|---|
| 1207 | int i=0, j=0, k=0, len; |
|---|
| 1208 | int err=0; |
|---|
| 1209 | arib_data_content_descriptor_t *p_data_content; |
|---|
| 1210 | |
|---|
| 1211 | len = p[1]; |
|---|
| 1212 | |
|---|
| 1213 | if ( len < 8 ) |
|---|
| 1214 | return; |
|---|
| 1215 | |
|---|
| 1216 | p_data_content = (arib_data_content_descriptor_t *)memChainAlloc(memId, sizeof(arib_data_content_descriptor_t)); |
|---|
| 1217 | |
|---|
| 1218 | if ( p_data_content == (arib_data_content_descriptor_t *)0 ) |
|---|
| 1219 | { |
|---|
| 1220 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1221 | goto ParseDescriptorExit; |
|---|
| 1222 | } |
|---|
| 1223 | |
|---|
| 1224 | p_data_content->data_component_id = ( p[2] << 8 ) + p[3]; |
|---|
| 1225 | p_data_content->entry_component = p[4]; |
|---|
| 1226 | p_data_content->selector_length = p[5]; |
|---|
| 1227 | |
|---|
| 1228 | if ( p_data_content->selector_length > 0 ) |
|---|
| 1229 | { |
|---|
| 1230 | DS_U8 *p_selector_byte; |
|---|
| 1231 | |
|---|
| 1232 | p_selector_byte = p_data_content->selector_byte = (DS_U8 *)memChainAlloc( memId, p_data_content->selector_length ); |
|---|
| 1233 | |
|---|
| 1234 | if ( p_selector_byte == (DS_U8 *)0 ) |
|---|
| 1235 | { |
|---|
| 1236 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1237 | goto ParseDescriptorExit; |
|---|
| 1238 | } |
|---|
| 1239 | |
|---|
| 1240 | for ( i = 0 ; i < p_data_content->selector_length ; i++ ) |
|---|
| 1241 | { |
|---|
| 1242 | *p_selector_byte = p[i+6]; |
|---|
| 1243 | p_selector_byte++; |
|---|
| 1244 | } |
|---|
| 1245 | } |
|---|
| 1246 | |
|---|
| 1247 | p_data_content->num_of_component_ref = p[i+6]; |
|---|
| 1248 | |
|---|
| 1249 | if ( p_data_content->num_of_component_ref > 0 ) |
|---|
| 1250 | { |
|---|
| 1251 | DS_U8 *p_component_ref; |
|---|
| 1252 | |
|---|
| 1253 | p_component_ref = p_data_content->component_ref = (DS_U8 *)memChainAlloc( memId, p_data_content->num_of_component_ref ); |
|---|
| 1254 | |
|---|
| 1255 | if ( p_component_ref == (DS_U8 *)0 ) |
|---|
| 1256 | { |
|---|
| 1257 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1258 | goto ParseDescriptorExit; |
|---|
| 1259 | } |
|---|
| 1260 | |
|---|
| 1261 | for ( j = 0 ; j < p_data_content->num_of_component_ref ; j++ ) |
|---|
| 1262 | { |
|---|
| 1263 | *p_component_ref = p[i+j+7]; |
|---|
| 1264 | p_component_ref++; |
|---|
| 1265 | } |
|---|
| 1266 | } |
|---|
| 1267 | |
|---|
| 1268 | p_data_content->ISO_639_language_code = ( p[i+j+7] << 16 ) + ( p[i+j+8] << 8 ) + p[i+j+9]; |
|---|
| 1269 | p_data_content->text_length = p[i+j+10]; |
|---|
| 1270 | |
|---|
| 1271 | if ( p_data_content->text_length > 0 ) |
|---|
| 1272 | { |
|---|
| 1273 | p_data_content->text_char = (DS_U8 *)memChainAlloc( memId, p_data_content->text_length+1 ); |
|---|
| 1274 | |
|---|
| 1275 | if ( p_data_content->text_char == (DS_U8 *)0 ) |
|---|
| 1276 | { |
|---|
| 1277 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1278 | goto ParseDescriptorExit; |
|---|
| 1279 | } |
|---|
| 1280 | |
|---|
| 1281 | for ( k = 0 ; k < p_data_content->text_length ; k++ ) |
|---|
| 1282 | { |
|---|
| 1283 | p_data_content->text_char[k] = p[i+j+k+11]; |
|---|
| 1284 | } |
|---|
| 1285 | |
|---|
| 1286 | p_data_content->text_char[k] = '\0'; |
|---|
| 1287 | } |
|---|
| 1288 | |
|---|
| 1289 | *pp_data_content = p_data_content; |
|---|
| 1290 | |
|---|
| 1291 | ParseDescriptorExit: |
|---|
| 1292 | if ( err ) |
|---|
| 1293 | { |
|---|
| 1294 | DST_Printf("ERROR: %s returns %d!\n", __func__, err); |
|---|
| 1295 | } |
|---|
| 1296 | } |
|---|
| 1297 | |
|---|
| 1298 | static void DHL_PSI_ParseShortEventDescriptor(DS_U8 *p_desc, memId_t memId, dvb_short_event_descriptor_t **pp_short_event) |
|---|
| 1299 | { |
|---|
| 1300 | dvb_short_event_descriptor_t *p_short_event; |
|---|
| 1301 | int event_name_length, text_length; |
|---|
| 1302 | DS_U32 ISO_639_language_code; |
|---|
| 1303 | |
|---|
| 1304 | if (!p_desc || !pp_short_event) |
|---|
| 1305 | return; |
|---|
| 1306 | |
|---|
| 1307 | if (p_desc[0] != DVB_TAG_short_event_descriptor || p_desc[1] < 5) |
|---|
| 1308 | { |
|---|
| 1309 | DST_Printf("%s: invalid tag or length, tag: 0x%x, length: 0x%x\n", __func__, p_desc[0], p_desc[1]); |
|---|
| 1310 | return; |
|---|
| 1311 | } |
|---|
| 1312 | |
|---|
| 1313 | ISO_639_language_code = (p_desc[2]<<16) + (p_desc[3]<<8) + p_desc[4]; |
|---|
| 1314 | |
|---|
| 1315 | p_short_event = (dvb_short_event_descriptor_t *)memChainAlloc(memId, sizeof(dvb_short_event_descriptor_t)); |
|---|
| 1316 | if ( !p_short_event ) |
|---|
| 1317 | return; |
|---|
| 1318 | |
|---|
| 1319 | p_short_event->ISO_639_language_code = ISO_639_language_code; |
|---|
| 1320 | p_short_event->event_name_length = event_name_length = p_desc[5]; |
|---|
| 1321 | p_short_event->p_event_name = (DS_U8 *)0; |
|---|
| 1322 | if (event_name_length) |
|---|
| 1323 | { |
|---|
| 1324 | p_short_event->p_event_name = (DS_U8 *)memChainAlloc(memId, event_name_length+1); |
|---|
| 1325 | SysASSERT(p_short_event->p_event_name); |
|---|
| 1326 | memcpy( p_short_event->p_event_name, &p_desc[6], event_name_length ); |
|---|
| 1327 | p_short_event->p_event_name[event_name_length] = '\0'; |
|---|
| 1328 | } |
|---|
| 1329 | |
|---|
| 1330 | p_short_event->text_length = text_length = p_desc[6+event_name_length]; |
|---|
| 1331 | p_short_event->p_text = (DS_U8 *)0; |
|---|
| 1332 | if (text_length) |
|---|
| 1333 | { |
|---|
| 1334 | p_short_event->p_text = (DS_U8 *)memChainAlloc(memId, text_length+1); |
|---|
| 1335 | SysASSERT(p_short_event->p_event_name); |
|---|
| 1336 | memcpy(p_short_event->p_text, &p_desc[7+event_name_length], text_length); |
|---|
| 1337 | p_short_event->p_text[text_length] = '\0'; |
|---|
| 1338 | } |
|---|
| 1339 | |
|---|
| 1340 | *pp_short_event = p_short_event; |
|---|
| 1341 | |
|---|
| 1342 | return; |
|---|
| 1343 | } |
|---|
| 1344 | |
|---|
| 1345 | static void DHL_PSI_ParseAudioComponentDescriptor( DS_U8 *p, memId_t memId, arib_audio_component_descriptor_t **pp_audio_component ) |
|---|
| 1346 | { |
|---|
| 1347 | int i, len; |
|---|
| 1348 | DS_U8 count; |
|---|
| 1349 | int err=0; |
|---|
| 1350 | arib_audio_component_descriptor_t *p_audio_component; |
|---|
| 1351 | |
|---|
| 1352 | len = p[1]; |
|---|
| 1353 | |
|---|
| 1354 | if ( len < 8 ) |
|---|
| 1355 | return; |
|---|
| 1356 | |
|---|
| 1357 | p_audio_component = (arib_audio_component_descriptor_t *)memChainAlloc(memId, sizeof(arib_audio_component_descriptor_t)); |
|---|
| 1358 | |
|---|
| 1359 | if ( p_audio_component == (arib_audio_component_descriptor_t *)0 ) |
|---|
| 1360 | { |
|---|
| 1361 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1362 | goto ParseDescriptorExit; |
|---|
| 1363 | } |
|---|
| 1364 | |
|---|
| 1365 | p_audio_component->stream_content = ( p[2] & 0xF ); |
|---|
| 1366 | p_audio_component->component_type = p[3]; |
|---|
| 1367 | p_audio_component->component_tag = p[4]; |
|---|
| 1368 | p_audio_component->stream_type = p[5]; |
|---|
| 1369 | p_audio_component->simulcast_group_tag = p[6]; |
|---|
| 1370 | p_audio_component->ES_multi_lingual_flag = ( p[7] & 0x80 ) >> 7; |
|---|
| 1371 | p_audio_component->main_component_flag = ( p[7] & 0x40 ) >> 6; |
|---|
| 1372 | p_audio_component->quality_indicator = ( p[7] & 0x30 ) >> 4; |
|---|
| 1373 | p_audio_component->sampling_rate = ( p[7] & 0xE ) >> 1; |
|---|
| 1374 | p_audio_component->ISO_639_language_code = ( p[8] << 16 ) + ( p[9] << 8 ) + p[10]; |
|---|
| 1375 | |
|---|
| 1376 | if ( p_audio_component->ES_multi_lingual_flag == 1 ) |
|---|
| 1377 | { |
|---|
| 1378 | // DS_U8 *p_text_char; |
|---|
| 1379 | |
|---|
| 1380 | p_audio_component->ISO_639_language_code_2 = ( p[11] << 16 ) + ( p[12] << 8 ) + p[13]; |
|---|
| 1381 | count = len - 12; |
|---|
| 1382 | p_audio_component->text_char = (DS_U8 *)memChainAlloc( memId, count+1 ); |
|---|
| 1383 | |
|---|
| 1384 | if ( p_audio_component->text_char == (DS_U8 *)0 ) |
|---|
| 1385 | { |
|---|
| 1386 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1387 | goto ParseDescriptorExit; |
|---|
| 1388 | } |
|---|
| 1389 | |
|---|
| 1390 | for ( i = 0 ; i < count ; i++ ) |
|---|
| 1391 | { |
|---|
| 1392 | p_audio_component->text_char[i] = (p[i+14]); |
|---|
| 1393 | } |
|---|
| 1394 | |
|---|
| 1395 | p_audio_component->text_char[i] = '\0'; |
|---|
| 1396 | } |
|---|
| 1397 | else |
|---|
| 1398 | { |
|---|
| 1399 | count = len - 9; |
|---|
| 1400 | p_audio_component->text_char = (DS_U8 *)memChainAlloc( memId, count+1 ); |
|---|
| 1401 | |
|---|
| 1402 | if ( p_audio_component->text_char == (DS_U8 *)0 ) |
|---|
| 1403 | { |
|---|
| 1404 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1405 | goto ParseDescriptorExit; |
|---|
| 1406 | } |
|---|
| 1407 | |
|---|
| 1408 | for ( i = 0 ; i < count ; i++ ) |
|---|
| 1409 | { |
|---|
| 1410 | p_audio_component->text_char[i] = (p[i+11]); |
|---|
| 1411 | } |
|---|
| 1412 | |
|---|
| 1413 | p_audio_component->text_char[i] = '\0'; |
|---|
| 1414 | } |
|---|
| 1415 | |
|---|
| 1416 | *pp_audio_component = p_audio_component; |
|---|
| 1417 | |
|---|
| 1418 | ParseDescriptorExit: |
|---|
| 1419 | if ( err ) |
|---|
| 1420 | { |
|---|
| 1421 | DST_Printf("ERROR: %s returns %d!\n", __func__, err); |
|---|
| 1422 | } |
|---|
| 1423 | } |
|---|
| 1424 | |
|---|
| 1425 | static void DHL_PSI_ParseExtendedEventDescriptor(DS_U8 *p_desc, memId_t memId, dvb_extended_event_descriptor_t **pp_extended_event) |
|---|
| 1426 | { |
|---|
| 1427 | dvb_extended_event_descriptor_t *p_extended_event; |
|---|
| 1428 | DS_U32 ISO_639_language_code; |
|---|
| 1429 | int length_of_items, text_length; |
|---|
| 1430 | int i, numItems; |
|---|
| 1431 | DS_U8 *p = (DS_U8 *)0; |
|---|
| 1432 | |
|---|
| 1433 | if (!p_desc || !pp_extended_event) |
|---|
| 1434 | return; |
|---|
| 1435 | |
|---|
| 1436 | if (p_desc[0] != DVB_TAG_extended_event_descriptor || p_desc[1] < 6) |
|---|
| 1437 | { |
|---|
| 1438 | DST_Printf("%s: invalid tag or length, tag: 0x%x, length: 0x%x\n", __func__, p_desc[0], p_desc[1]); |
|---|
| 1439 | return; |
|---|
| 1440 | } |
|---|
| 1441 | |
|---|
| 1442 | ISO_639_language_code = (p_desc[3]<<16) + (p_desc[4]<<8) + (p_desc[5]); |
|---|
| 1443 | |
|---|
| 1444 | p_extended_event = (dvb_extended_event_descriptor_t *)memChainAlloc(memId, sizeof(dvb_extended_event_descriptor_t)); |
|---|
| 1445 | if (!p_extended_event) |
|---|
| 1446 | return; |
|---|
| 1447 | |
|---|
| 1448 | p_extended_event->descriptor_number = (p_desc[2]>>4) & 0x0F; |
|---|
| 1449 | p_extended_event->last_descriptor_number = (p_desc[2]) & 0x0F; |
|---|
| 1450 | p_extended_event->ISO_639_language_code = ISO_639_language_code; |
|---|
| 1451 | |
|---|
| 1452 | length_of_items = p_desc[6]; |
|---|
| 1453 | p_extended_event->numItems = 0; |
|---|
| 1454 | p_extended_event->items = (dvb_ext_event_item_t *)0; |
|---|
| 1455 | |
|---|
| 1456 | if (length_of_items) |
|---|
| 1457 | { |
|---|
| 1458 | int item_description_length; |
|---|
| 1459 | int item_length; |
|---|
| 1460 | dvb_ext_event_item_t *p_item; |
|---|
| 1461 | |
|---|
| 1462 | /* |
|---|
| 1463 | * Calculate number of items. |
|---|
| 1464 | */ |
|---|
| 1465 | numItems = 0; |
|---|
| 1466 | |
|---|
| 1467 | p = &p_desc[7]; |
|---|
| 1468 | for(i=0; i<length_of_items; /* i is incremented in the loop */) |
|---|
| 1469 | { |
|---|
| 1470 | item_description_length = p[i+0]; |
|---|
| 1471 | item_length = p[i+item_description_length+1]; |
|---|
| 1472 | |
|---|
| 1473 | i += item_description_length+item_length+2; |
|---|
| 1474 | numItems++; |
|---|
| 1475 | } |
|---|
| 1476 | |
|---|
| 1477 | p_extended_event->numItems = numItems; |
|---|
| 1478 | p_item = p_extended_event->items = (dvb_ext_event_item_t *)memChainAlloc(memId, sizeof(dvb_ext_event_item_t)*numItems); |
|---|
| 1479 | for(i=0; i<length_of_items; /* i is incremented in the loop */) |
|---|
| 1480 | { |
|---|
| 1481 | item_description_length = p[i+0]; |
|---|
| 1482 | item_length = p[i+item_description_length+1]; |
|---|
| 1483 | |
|---|
| 1484 | p_item->item_description_length = item_description_length; |
|---|
| 1485 | if (item_description_length) |
|---|
| 1486 | { |
|---|
| 1487 | p_item->p_item_description = (DS_U8 *)memChainAlloc(memId, item_description_length+1); |
|---|
| 1488 | memcpy(p_item->p_item_description, &p[i+1], item_description_length); |
|---|
| 1489 | p_item->p_item_description[item_description_length] = '\0'; |
|---|
| 1490 | } |
|---|
| 1491 | |
|---|
| 1492 | p_item->item_length = item_length; |
|---|
| 1493 | if (item_length) |
|---|
| 1494 | { |
|---|
| 1495 | p_item->p_item_char = (DS_U8 *)memChainAlloc(memId, item_length+1); |
|---|
| 1496 | memcpy(p_item->p_item_char, &p[i+2+item_description_length], item_length); |
|---|
| 1497 | p_item->p_item_char[item_length] = '\0'; |
|---|
| 1498 | } |
|---|
| 1499 | |
|---|
| 1500 | i += item_description_length+item_length+2; |
|---|
| 1501 | p_item++; |
|---|
| 1502 | } |
|---|
| 1503 | } |
|---|
| 1504 | |
|---|
| 1505 | text_length = p_desc[7+length_of_items]; |
|---|
| 1506 | p_extended_event->text_length = text_length; |
|---|
| 1507 | p_extended_event->p_text = (DS_U8 *)0; |
|---|
| 1508 | if (text_length) |
|---|
| 1509 | { |
|---|
| 1510 | p_extended_event->p_text = (DS_U8 *)memChainAlloc(memId, text_length); |
|---|
| 1511 | memcpy(p_extended_event->p_text, &p_desc[8+length_of_items], text_length); |
|---|
| 1512 | } |
|---|
| 1513 | |
|---|
| 1514 | *pp_extended_event = p_extended_event; |
|---|
| 1515 | return; |
|---|
| 1516 | } |
|---|
| 1517 | |
|---|
| 1518 | static void DHL_PSI_ParseParentalRatingDescriptorEx (DS_U8* p, memId_t memId, dvb_parental_rating_descriptor_t **pp_desc) |
|---|
| 1519 | { |
|---|
| 1520 | //memId_t memId; |
|---|
| 1521 | //memChainSetup_t memSetup = {MEM_LIMIT,0,0}; |
|---|
| 1522 | DS_U8 length; |
|---|
| 1523 | int err=0; |
|---|
| 1524 | dvb_parental_rating_descriptor_t *p_desc; |
|---|
| 1525 | dvb_parental_rating_entry_t *p_entry; |
|---|
| 1526 | int i, numEntries; |
|---|
| 1527 | DS_U8 *p_data; |
|---|
| 1528 | |
|---|
| 1529 | length = p[1]; |
|---|
| 1530 | |
|---|
| 1531 | #if 0 |
|---|
| 1532 | /* create the memChain */ |
|---|
| 1533 | err = memChainCreate(&memId); |
|---|
| 1534 | if (err != 0) |
|---|
| 1535 | goto ParseDescriptorExit; |
|---|
| 1536 | #endif |
|---|
| 1537 | |
|---|
| 1538 | /* create the descriptor memory */ |
|---|
| 1539 | p_desc = (dvb_parental_rating_descriptor_t *)(memChainAlloc(memId,sizeof(dvb_parental_rating_descriptor_t))); |
|---|
| 1540 | if (p_desc == (dvb_parental_rating_descriptor_t *)0) |
|---|
| 1541 | { |
|---|
| 1542 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1543 | goto ParseDescriptorExit; |
|---|
| 1544 | } |
|---|
| 1545 | |
|---|
| 1546 | numEntries = length>>2; |
|---|
| 1547 | if (numEntries<=0) |
|---|
| 1548 | goto ParseDescriptorExit; |
|---|
| 1549 | |
|---|
| 1550 | p_entry = (dvb_parental_rating_entry_t *)memChainAlloc(memId, sizeof(dvb_parental_rating_entry_t)*numEntries); |
|---|
| 1551 | if (p_entry == (dvb_parental_rating_entry_t *)0) |
|---|
| 1552 | { |
|---|
| 1553 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1554 | goto ParseDescriptorExit; |
|---|
| 1555 | } |
|---|
| 1556 | p_desc->i_num_ratings = numEntries; |
|---|
| 1557 | p_desc->p_ratings = p_entry; |
|---|
| 1558 | |
|---|
| 1559 | p_data = &p[2]; |
|---|
| 1560 | for (i=0; i<numEntries; i++) |
|---|
| 1561 | { |
|---|
| 1562 | p_entry->country_code = (p_data[0]<<16) + (p_data[1]<<8) + (p_data[2]<<0); |
|---|
| 1563 | p_entry->rating_value = p_data[3]; |
|---|
| 1564 | p_data += 4; |
|---|
| 1565 | p_entry++; |
|---|
| 1566 | } |
|---|
| 1567 | |
|---|
| 1568 | *(((memId_t *)(p_desc))-1) = memId; |
|---|
| 1569 | memId = 0; /* so memChain not deleted */ |
|---|
| 1570 | *pp_desc = p_desc; |
|---|
| 1571 | |
|---|
| 1572 | ParseDescriptorExit: |
|---|
| 1573 | if (memId) { |
|---|
| 1574 | /* delete the descriptor memory */ |
|---|
| 1575 | memChainDestroy(memId); |
|---|
| 1576 | } |
|---|
| 1577 | |
|---|
| 1578 | if (err) |
|---|
| 1579 | { |
|---|
| 1580 | DST_Printf("ERROR: %s returns %d!\n", __func__, err); |
|---|
| 1581 | } |
|---|
| 1582 | } |
|---|
| 1583 | |
|---|
| 1584 | static void DHL_PSI_ParseEventGroupDescriptor(DS_U8 *p_desc, memId_t memId, arib_event_group_descriptor_t **pp_event_grp) |
|---|
| 1585 | { |
|---|
| 1586 | DS_U8 *p = p_desc; |
|---|
| 1587 | arib_event_group_descriptor_t *p_event_grp; |
|---|
| 1588 | arib_event_t *p_event; |
|---|
| 1589 | arib_other_event_t *p_other_event; |
|---|
| 1590 | int i, len, off; |
|---|
| 1591 | // int numEvent; |
|---|
| 1592 | |
|---|
| 1593 | if (!p_desc || !pp_event_grp || !memId) |
|---|
| 1594 | return; |
|---|
| 1595 | |
|---|
| 1596 | len = p_desc[1]; |
|---|
| 1597 | if (len<5) |
|---|
| 1598 | return; |
|---|
| 1599 | |
|---|
| 1600 | p_event_grp = (arib_event_group_descriptor_t *)memChainAlloc(memId, sizeof(arib_event_group_descriptor_t)); |
|---|
| 1601 | p_event_grp->group_type = (p[2] >> 4) & 0x0F; |
|---|
| 1602 | p_event_grp->numEvents = p[2]&0x0F; |
|---|
| 1603 | |
|---|
| 1604 | off = 3 /*3=descriptor_tag+length+group_type + event_cnt*/; |
|---|
| 1605 | if ( p_event_grp->numEvents ) |
|---|
| 1606 | { |
|---|
| 1607 | p_event = p_event_grp->p_event = (arib_event_t *)memChainAlloc(memId, sizeof(arib_event_t) * p_event_grp->numEvents); |
|---|
| 1608 | for (i=0; i<p_event_grp->numEvents && off <= (len+2); i++) |
|---|
| 1609 | { |
|---|
| 1610 | p_event->service_id = (p[0+off]<<8)+p[1+off]; |
|---|
| 1611 | p_event->event_id = (p[2+off]<<8)+p[3+off]; |
|---|
| 1612 | |
|---|
| 1613 | off += 4; |
|---|
| 1614 | p_event++; |
|---|
| 1615 | } |
|---|
| 1616 | } |
|---|
| 1617 | |
|---|
| 1618 | p_event_grp->numOtherNetworkEvents = 0; |
|---|
| 1619 | if ( p_event_grp->group_type == 4 || p_event_grp->group_type == 5 ) |
|---|
| 1620 | { |
|---|
| 1621 | p_event_grp->numOtherNetworkEvents = (len-off-2)/8; |
|---|
| 1622 | if (p_event_grp->numOtherNetworkEvents) |
|---|
| 1623 | { |
|---|
| 1624 | p_other_event = p_event_grp->p_other_event = (arib_other_event_t *)memChainAlloc(memId, sizeof(arib_other_event_t) * p_event_grp->numOtherNetworkEvents); |
|---|
| 1625 | for (i=0; i<p_event_grp->numOtherNetworkEvents; i++) |
|---|
| 1626 | { |
|---|
| 1627 | p_other_event->original_network_id = (p[0+off]<<8)+p[1+off]; |
|---|
| 1628 | p_other_event->transport_stream_id = (p[2+off]<<8)+p[3+off]; |
|---|
| 1629 | p_other_event->service_id = (p[4+off]<<8)+p[5+off]; |
|---|
| 1630 | p_other_event->event_id = (p[6+off]<<8)+p[7+off]; |
|---|
| 1631 | |
|---|
| 1632 | off += 8; |
|---|
| 1633 | p_other_event++; |
|---|
| 1634 | } |
|---|
| 1635 | } |
|---|
| 1636 | } |
|---|
| 1637 | |
|---|
| 1638 | *pp_event_grp = p_event_grp; |
|---|
| 1639 | } |
|---|
| 1640 | |
|---|
| 1641 | int DHL_PSI_ParseDvbEit(DS_U8 **sectionArr, DVB_EIT **pp_eit) |
|---|
| 1642 | { |
|---|
| 1643 | if (!sectionArr || !sectionArr[0] || !pp_eit) return DHL_FAIL_NULL_POINTER; |
|---|
| 1644 | *pp_eit = 0; |
|---|
| 1645 | // 2013.10.07 section ¸ðµå·Î EIT¸¦ ¹ÞÀ¸¹Ç·Î Ç×»ó section °¹¼ö´Â 1ÀÌ´Ù. |
|---|
| 1646 | int numSections = 1; //get_last_section_number(sectionArr[0]) + 1; |
|---|
| 1647 | // First pass, we verify section syntax and count the number of events. |
|---|
| 1648 | int numEvents = 0; |
|---|
| 1649 | for (int i = 0; i < numSections; ++i) |
|---|
| 1650 | { |
|---|
| 1651 | if (!sectionArr[i]) break; |
|---|
| 1652 | DS_U8* p = sectionArr[i]; |
|---|
| 1653 | if ((p[SECTION_LEN_HI] & 0x80) != 0x80) DST_Printf("EIT: section_syntax_indicator not set\n"); |
|---|
| 1654 | int len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3; |
|---|
| 1655 | DS_U16 service_id = (p[SECTION_TID_EXT_HI] << 8) + p[SECTION_TID_EXT_LO]; |
|---|
| 1656 | if (service_id == 0) continue; |
|---|
| 1657 | // Counts number of services. |
|---|
| 1658 | int event_length = len - 14/*table_id to last_table_id*/ - 4/*crc_32*/; |
|---|
| 1659 | if ( event_length < 12 ) continue; // No events are available for this section. |
|---|
| 1660 | p = §ionArr[i][14]; |
|---|
| 1661 | for(int k=0; (k+12+4)<event_length; ) |
|---|
| 1662 | { |
|---|
| 1663 | int descriptor_loop_length = ((p[k+10]<<8)+p[k+11]) & 0xFFF; |
|---|
| 1664 | numEvents++; |
|---|
| 1665 | k += 12+descriptor_loop_length; |
|---|
| 1666 | } |
|---|
| 1667 | } |
|---|
| 1668 | if (numEvents == 0) return 0; |
|---|
| 1669 | // DST_Printf("EIT: numEvents: %d\n", numEvents); |
|---|
| 1670 | |
|---|
| 1671 | // create the memChain |
|---|
| 1672 | memId_t memId = 0; |
|---|
| 1673 | if (memChainCreate(&memId)) return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1674 | |
|---|
| 1675 | dvb_eit_t* p_eit = (dvb_eit_t *)((memId_t *)(memChainAlloc(memId,sizeof(dvb_eit_t)+sizeof(memId_t))) + 1); |
|---|
| 1676 | if (p_eit == 0) |
|---|
| 1677 | { |
|---|
| 1678 | memChainDestroy(memId); |
|---|
| 1679 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1680 | } |
|---|
| 1681 | dvb_eit_event_t *p_event = p_eit->eit_events = (dvb_eit_event_t *)memChainAlloc(memId,sizeof(dvb_eit_event_t)*numEvents); |
|---|
| 1682 | if (p_eit->eit_events == 0) |
|---|
| 1683 | { |
|---|
| 1684 | memChainDestroy(memId); |
|---|
| 1685 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 1686 | } |
|---|
| 1687 | p_eit->numEvents = numEvents; |
|---|
| 1688 | |
|---|
| 1689 | // Now fill-out all the remaining fields over the all sections. |
|---|
| 1690 | // int index = 0; |
|---|
| 1691 | for (int i = 0; i < numSections; ++i) |
|---|
| 1692 | { |
|---|
| 1693 | if(!sectionArr[i]) break; |
|---|
| 1694 | DS_U8* p = sectionArr[i]; |
|---|
| 1695 | int len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3; |
|---|
| 1696 | DS_U16 service_id = ((p[SECTION_TID_EXT_HI] << 8) | p[SECTION_TID_EXT_LO]); |
|---|
| 1697 | if (service_id == 0) continue; |
|---|
| 1698 | DS_U8 version_number = (p[SECTION_VERSION] & SECTION_VERSION_MASK) >> SECTION_VERSION_SHIFT; |
|---|
| 1699 | DS_U8 last_section_number = p[SECTION_NUM_LAST]; |
|---|
| 1700 | DS_U8 table_id = p[SECTION_TID]; |
|---|
| 1701 | DS_U16 transport_stream_id = ((p[8]<<8) + p[9]); |
|---|
| 1702 | DS_U16 original_network_id = ((p[10]<<8) + p[11]); |
|---|
| 1703 | DS_U8 segment_last_section_number = p[12]; |
|---|
| 1704 | DS_U8 last_table_id = p[13]; |
|---|
| 1705 | |
|---|
| 1706 | if (i == 0) |
|---|
| 1707 | { |
|---|
| 1708 | p_eit->table_id = table_id; |
|---|
| 1709 | p_eit->service_id = service_id; |
|---|
| 1710 | p_eit->version_number = version_number; |
|---|
| 1711 | p_eit->section_number = p[6]; |
|---|
| 1712 | p_eit->last_section_number = last_section_number; |
|---|
| 1713 | p_eit->segment_last_section_number = segment_last_section_number; |
|---|
| 1714 | p_eit->transport_stream_id = transport_stream_id; |
|---|
| 1715 | p_eit->original_network_id = original_network_id; |
|---|
| 1716 | p_eit->last_table_id = last_table_id; |
|---|
| 1717 | } |
|---|
| 1718 | int event_length = len - 14/*table_id to last_table_id*/ - 4/*crc_32*/; |
|---|
| 1719 | if ( event_length < 12 ) continue; // No events are available for this section. |
|---|
| 1720 | p = §ionArr[i][14]; |
|---|
| 1721 | for(int k=0; (k+12+4)<event_length; ) |
|---|
| 1722 | { |
|---|
| 1723 | int descriptor_length = p_event->descriptor_length = ((p[k+10]<<8)+p[k+11]) & 0xFFF; |
|---|
| 1724 | p_event->event_id = (p[k+0]<<8)+p[k+1]; |
|---|
| 1725 | p_event->start_date = (p[k+2]<<8)+p[k+3]; |
|---|
| 1726 | p_event->start_time = (p[k+4]<<16)+(p[k+5]<<8)+p[k+6]; |
|---|
| 1727 | p_event->duration = (p[k+7]<<16)+(p[k+8]<<8)+p[k+9]; |
|---|
| 1728 | p_event->running_status = (p[k+10]>>5) & 0x07; |
|---|
| 1729 | p_event->free_CA_mode = (p[k+10]>>4) & 0x01; |
|---|
| 1730 | if (p_event->descriptor_length) |
|---|
| 1731 | { |
|---|
| 1732 | DS_U8 *p_desc_sect = p_event->descriptors = (DS_U8*)memChainAlloc(memId, p_event->descriptor_length); |
|---|
| 1733 | memcpy(p_event->descriptors, &p[k+12], p_event->descriptor_length); |
|---|
| 1734 | |
|---|
| 1735 | // ShortEventDescriptor°¡ 2°³ ÀÌ»óÀÎ °æ¿ì¸¦ À§ÇÏ¿© ¾øÀ» ¶§ ±îÁö ã¾Æ¼ Parse. |
|---|
| 1736 | p_event->numShortEvents = GetMpegDescriptorCount(p_desc_sect, descriptor_length, DVB_TAG_short_event_descriptor); |
|---|
| 1737 | p_event->pp_short_event = (dvb_short_event_descriptor_t **)memChainAlloc(memId, sizeof(dvb_short_event_descriptor_t *) * p_event->numShortEvents); |
|---|
| 1738 | for (int m = 0; m < p_event->numShortEvents; m++) |
|---|
| 1739 | { |
|---|
| 1740 | DS_U8* p_desc = 0; |
|---|
| 1741 | if (GetMpegDescriptor( p_desc_sect, descriptor_length, DVB_TAG_short_event_descriptor, m, &p_desc )) continue; |
|---|
| 1742 | DHL_PSI_ParseShortEventDescriptor(p_desc, memId, &p_event->pp_short_event[m]); |
|---|
| 1743 | } |
|---|
| 1744 | |
|---|
| 1745 | // extended_event_descriptor°¡ 2°³ ÀÌ»óÀÎ °æ¿ì¸¦ À§ÇÏ¿© ¾øÀ» ¶§ ±îÁö ã¾Æ¼ Parse. |
|---|
| 1746 | p_event->numExtendedEvents = GetMpegDescriptorCount(p_desc_sect, descriptor_length, DVB_TAG_extended_event_descriptor); |
|---|
| 1747 | p_event->pp_extended_event = (dvb_extended_event_descriptor_t **)memChainAlloc(memId, sizeof(dvb_extended_event_descriptor_t *) * p_event->numExtendedEvents); |
|---|
| 1748 | for (int m = 0; m < p_event->numExtendedEvents; m++) |
|---|
| 1749 | { |
|---|
| 1750 | DS_U8* p_desc = 0; |
|---|
| 1751 | if (GetMpegDescriptor( p_desc_sect, descriptor_length, DVB_TAG_extended_event_descriptor, m, &p_desc )) continue; |
|---|
| 1752 | DHL_PSI_ParseExtendedEventDescriptor(p_desc, memId, &p_event->pp_extended_event[m]); |
|---|
| 1753 | } |
|---|
| 1754 | |
|---|
| 1755 | // Find Parental_Rating descriptor. |
|---|
| 1756 | p_event->numParentalRating = GetMpegDescriptorCount(p_desc_sect, descriptor_length, DVB_TAG_parental_rating_descriptor); |
|---|
| 1757 | p_event->pp_pr_desc = (dvb_parental_rating_descriptor_t **)memChainAlloc(memId, sizeof(dvb_parental_rating_descriptor_t *) * p_event->numParentalRating); |
|---|
| 1758 | for (int m = 0; m < p_event->numParentalRating; m++) |
|---|
| 1759 | { |
|---|
| 1760 | DS_U8* p_desc = 0; |
|---|
| 1761 | if (GetMpegDescriptor( p_desc_sect, descriptor_length, DVB_TAG_parental_rating_descriptor, m, &p_desc )) continue; |
|---|
| 1762 | DHL_PSI_ParseParentalRatingDescriptorEx(p_desc, memId, &p_event->pp_pr_desc[m]); |
|---|
| 1763 | } |
|---|
| 1764 | |
|---|
| 1765 | // Find Event Group descriptor. |
|---|
| 1766 | DS_U8* p_desc = 0; |
|---|
| 1767 | if (!GetMpegDescriptor( p_desc_sect, descriptor_length, ARIB_TAG_event_group_descriptor, 0, &p_desc )) |
|---|
| 1768 | { |
|---|
| 1769 | DHL_PSI_ParseEventGroupDescriptor( p_desc, memId, &p_event->p_event_group ); |
|---|
| 1770 | } |
|---|
| 1771 | |
|---|
| 1772 | // Find Audio component descriptor. |
|---|
| 1773 | p_event->numAudioComponent = GetMpegDescriptorCount(p_desc_sect, descriptor_length, ARIB_TAG_audio_component_descriptor); |
|---|
| 1774 | p_event->pp_audio_component = (arib_audio_component_descriptor_t **)memChainAlloc(memId, sizeof(arib_audio_component_descriptor_t *) * p_event->numAudioComponent); |
|---|
| 1775 | for (int m = 0; m < p_event->numAudioComponent; m++) |
|---|
| 1776 | { |
|---|
| 1777 | DS_U8* p_desc = 0; |
|---|
| 1778 | if (GetMpegDescriptor( p_desc_sect, descriptor_length, ARIB_TAG_audio_component_descriptor, m, &p_desc )) continue; |
|---|
| 1779 | DHL_PSI_ParseAudioComponentDescriptor(p_desc, memId, &p_event->pp_audio_component[m]); |
|---|
| 1780 | } |
|---|
| 1781 | |
|---|
| 1782 | // Data component descriptor |
|---|
| 1783 | p_event->numDataContent = GetMpegDescriptorCount(p_desc_sect, descriptor_length, ARIB_TAG_data_content_descriptor); |
|---|
| 1784 | p_event->pp_data_content = (arib_data_content_descriptor_t **)memChainAlloc(memId, sizeof(arib_data_content_descriptor_t *) * p_event->numDataContent); |
|---|
| 1785 | for (int m = 0; m < p_event->numDataContent; m++) |
|---|
| 1786 | { |
|---|
| 1787 | DS_U8* p_desc = 0; |
|---|
| 1788 | if (GetMpegDescriptor( p_desc_sect, descriptor_length, ARIB_TAG_data_content_descriptor, m, &p_desc )) continue; |
|---|
| 1789 | DHL_PSI_ParseDataContentDescriptor(p_desc, memId, &p_event->pp_data_content[m]); |
|---|
| 1790 | } |
|---|
| 1791 | } |
|---|
| 1792 | k += 12+descriptor_length; |
|---|
| 1793 | p_event++; |
|---|
| 1794 | } |
|---|
| 1795 | } |
|---|
| 1796 | *(((memId_t *)p_eit)-1) = memId; |
|---|
| 1797 | *pp_eit = p_eit; |
|---|
| 1798 | return 0; |
|---|
| 1799 | } |
|---|
| 1800 | |
|---|
| 1801 | static int DHL_PSI_ParseStreamIdentifierDescriptor(DS_U8 *p, DS_U8 *p_component_tag) |
|---|
| 1802 | { |
|---|
| 1803 | if (p[1] < 1) return -1; |
|---|
| 1804 | *p_component_tag = p[2]; |
|---|
| 1805 | return 0; |
|---|
| 1806 | } |
|---|
| 1807 | |
|---|
| 1808 | int DHL_PSI_ParsePMT( DS_U8 *section, MPEG_PMT **returnPmt) |
|---|
| 1809 | { |
|---|
| 1810 | int err = 0; |
|---|
| 1811 | DS_S32 j, k; |
|---|
| 1812 | // DS_S32 index; |
|---|
| 1813 | DS_S32 numStreams; |
|---|
| 1814 | DS_S32 len, len2; |
|---|
| 1815 | MPEG_PMT *pmt; |
|---|
| 1816 | DS_S32 program_info_length, es_info_length; |
|---|
| 1817 | // memChainSetup_t memSetup = {MEM_LIMIT,0,0}; |
|---|
| 1818 | memId_t memId = 0; |
|---|
| 1819 | const DS_U8 *p; |
|---|
| 1820 | DS_U8 *q; |
|---|
| 1821 | int pmtSize = 0; |
|---|
| 1822 | |
|---|
| 1823 | if( section == 0 || returnPmt == 0 ) |
|---|
| 1824 | return DHL_FAIL_NULL_POINTER; |
|---|
| 1825 | /* |
|---|
| 1826 | * First pass, we verify section syntax and count the number of streams |
|---|
| 1827 | */ |
|---|
| 1828 | p = section; |
|---|
| 1829 | |
|---|
| 1830 | numStreams = 0; |
|---|
| 1831 | if (p[SECTION_TID] != TS_PROGRAM_MAP_SECTION) { |
|---|
| 1832 | /* |
|---|
| 1833 | * This thing isn't a PMT. Stop right here. |
|---|
| 1834 | */ |
|---|
| 1835 | DST_Printf("PMT: Bad table ID."); |
|---|
| 1836 | err = DHL_FAIL_INVALID_TABLEID; |
|---|
| 1837 | goto ParseExit; |
|---|
| 1838 | } |
|---|
| 1839 | if ((p[SECTION_LEN_HI] & 0x80) != 0x80) { |
|---|
| 1840 | DST_Printf("PAT: section_syntax_indicator not set"); |
|---|
| 1841 | } |
|---|
| 1842 | if ((p[SECTION_LEN_HI] & 0x40) != 0x00) { |
|---|
| 1843 | DST_Printf("PAT: private_indicator set"); |
|---|
| 1844 | } |
|---|
| 1845 | len = (((p[SECTION_LEN_HI] & 0x0F) << 8) | p[SECTION_LEN_LO]) + 3; |
|---|
| 1846 | if (p[SECTION_NUM] != 0) { |
|---|
| 1847 | DST_Printf("PMT: section_number != 0"); |
|---|
| 1848 | } |
|---|
| 1849 | if (p[SECTION_NUM_LAST] != 0) { |
|---|
| 1850 | DST_Printf("PAT: last_section_number != 0"); |
|---|
| 1851 | } |
|---|
| 1852 | program_info_length = ((p[10]<<8) + p[11]) & 0x0FFF; |
|---|
| 1853 | if (program_info_length & 0x0C00) { |
|---|
| 1854 | DST_Printf("PMT: first 2 bits of program_info_length not 00"); |
|---|
| 1855 | } |
|---|
| 1856 | len2 = len - program_info_length - 16; |
|---|
| 1857 | if (len2 < 0) { |
|---|
| 1858 | DST_Printf("PMT: program descriptors extend beyond section"); |
|---|
| 1859 | err = DHL_FAIL_INVALID_PARAM; |
|---|
| 1860 | goto ParseExit; |
|---|
| 1861 | } |
|---|
| 1862 | p += program_info_length + 12; |
|---|
| 1863 | while (len2 > 0) { |
|---|
| 1864 | if (len2 < 5) { |
|---|
| 1865 | DST_Printf("PMT: junk bytes at end of table"); |
|---|
| 1866 | break; |
|---|
| 1867 | } |
|---|
| 1868 | es_info_length = ((p[3]<<8) + p[4]) & 0x0FFF; |
|---|
| 1869 | if (es_info_length & 0x0C00) { |
|---|
| 1870 | DST_Printf("PMT: first 2 bits of ES_info_length not 00"); |
|---|
| 1871 | } |
|---|
| 1872 | if (len2 - es_info_length < 5) { |
|---|
| 1873 | DST_Printf("PMT: elementary stream descriptors extend beyond section"); |
|---|
| 1874 | break; |
|---|
| 1875 | } |
|---|
| 1876 | /* |
|---|
| 1877 | * This is a hack to repair corrupted PMT's which we have received |
|---|
| 1878 | */ |
|---|
| 1879 | { |
|---|
| 1880 | DS_S32/*BK2003.11.18 <-DS_U32 by cafrii*/ hlen = es_info_length; |
|---|
| 1881 | DS_U8 *hp = (DS_U8 *)&p[5]; |
|---|
| 1882 | DS_U32 dtype, dlen; |
|---|
| 1883 | while(hlen > 0) { |
|---|
| 1884 | dtype = hp[0]; |
|---|
| 1885 | dlen = hp[1]; |
|---|
| 1886 | if (dtype == 10 && dlen == 3) { |
|---|
| 1887 | hp[1] = 4; |
|---|
| 1888 | es_info_length++; |
|---|
| 1889 | ((DS_U8 *)p)[3] = es_info_length>>8; |
|---|
| 1890 | ((DS_U8 *)p)[4] = es_info_length&255; |
|---|
| 1891 | break; |
|---|
| 1892 | } |
|---|
| 1893 | hp += (dlen+2); |
|---|
| 1894 | hlen -= (dlen+2); |
|---|
| 1895 | } |
|---|
| 1896 | } |
|---|
| 1897 | /* |
|---|
| 1898 | * End corrupted PMT hack |
|---|
| 1899 | */ |
|---|
| 1900 | len2 = len2 - es_info_length - 5; |
|---|
| 1901 | p += es_info_length + 5; |
|---|
| 1902 | numStreams++; |
|---|
| 1903 | } |
|---|
| 1904 | /* |
|---|
| 1905 | * At this point, numStreams has the number of streams, which we can |
|---|
| 1906 | * base the size of the PMT from. |
|---|
| 1907 | */ |
|---|
| 1908 | /* create the memChain */ |
|---|
| 1909 | err = memChainCreate(&memId); |
|---|
| 1910 | if (err) { |
|---|
| 1911 | goto ParseExit; |
|---|
| 1912 | } |
|---|
| 1913 | /* allocate memory for pmtSection */ |
|---|
| 1914 | pmtSize = MPEG_PMTSize(numStreams); |
|---|
| 1915 | pmt = (MPEG_PMT *)((memId_t *)(memChainAlloc(memId, pmtSize + sizeof(memId_t))) + 1); |
|---|
| 1916 | checkMemoryError(pmt); |
|---|
| 1917 | |
|---|
| 1918 | /* |
|---|
| 1919 | * Second pass, we fill in the table. |
|---|
| 1920 | * We assume that everything we verified or warned about above is still |
|---|
| 1921 | * true. We already bailed out on fatal errors |
|---|
| 1922 | */ |
|---|
| 1923 | // index = 0; |
|---|
| 1924 | p = section; |
|---|
| 1925 | /* pmt->PID = desc->pid;*/ |
|---|
| 1926 | pmt->program_number = ((p[SECTION_TID_EXT_HI] << 8) | |
|---|
| 1927 | p[SECTION_TID_EXT_LO]); |
|---|
| 1928 | pmt->version_number = (p[SECTION_VERSION] & SECTION_VERSION_MASK) >> |
|---|
| 1929 | SECTION_VERSION_SHIFT; |
|---|
| 1930 | pmt->current_next_indicator = (p[SECTION_VERSION] & SECTION_CNI_MASK) != 0; |
|---|
| 1931 | pmt->PCR_PID = ((p[8] << 8) | p[9]) & PID_MASK; |
|---|
| 1932 | pmt->numStreams = numStreams; |
|---|
| 1933 | |
|---|
| 1934 | len2 = len - program_info_length - 16; |
|---|
| 1935 | |
|---|
| 1936 | p += 12; |
|---|
| 1937 | pmt->descriptor_length = program_info_length; |
|---|
| 1938 | pmt->descriptors = (DS_U8 *)memChainAlloc(memId,program_info_length*sizeof(DS_U8)); |
|---|
| 1939 | checkMemoryError(pmt->descriptors); |
|---|
| 1940 | for (j=0; j<program_info_length; j++) { |
|---|
| 1941 | pmt->descriptors[j] = *p++; |
|---|
| 1942 | } |
|---|
| 1943 | |
|---|
| 1944 | for (j = 0; j < numStreams; ++j) { |
|---|
| 1945 | pmt->streams[j].stream_type = p[0]; |
|---|
| 1946 | pmt->streams[j].elementary_PID = ((p[1]<<8) | p[2]) & PID_MASK; |
|---|
| 1947 | es_info_length = ((p[3]<<8) + p[4]) & 0x0FFF; |
|---|
| 1948 | p += 5; |
|---|
| 1949 | pmt->streams[j].descriptor_length = es_info_length; |
|---|
| 1950 | pmt->streams[j].descriptors = (DS_U8 *)memChainAlloc(memId,es_info_length*sizeof(DS_U8)); |
|---|
| 1951 | checkMemoryError(pmt->streams[j].descriptors); |
|---|
| 1952 | for (k=0; k<es_info_length; k++) { |
|---|
| 1953 | pmt->streams[j].descriptors[k] = *p++; |
|---|
| 1954 | } |
|---|
| 1955 | // if (GetMpegDescriptor(pmt->streams[j].descriptors,es_info_length, |
|---|
| 1956 | // video_stream_tag,0/*instance*/,&q) == 0) { |
|---|
| 1957 | // DHL_PSI_ParseVideoStreamDescriptor(q,memId,&pmt->streams[j].videoStreamDescriptor); |
|---|
| 1958 | // } |
|---|
| 1959 | // if (GetMpegDescriptor(pmt->streams[j].descriptors,es_info_length, |
|---|
| 1960 | // video_decode_control_tag,0/*instance*/,&q) == 0) { |
|---|
| 1961 | // DHL_PSI_ParseVideoDecodeControlDescriptor(q,memId,&pmt->streams[j].videoDecodeControlDescriptor); |
|---|
| 1962 | // } |
|---|
| 1963 | pmt->streams[j].b_component_tag_valid = false; |
|---|
| 1964 | if (GetMpegDescriptor(pmt->streams[j].descriptors,es_info_length, |
|---|
| 1965 | DVB_TAG_stream_identifier_descriptor, 0, &q)==0) { |
|---|
| 1966 | if ( DHL_PSI_ParseStreamIdentifierDescriptor(q,&(pmt->streams[j].component_tag)) == 0 ) |
|---|
| 1967 | pmt->streams[j].b_component_tag_valid = true; |
|---|
| 1968 | } |
|---|
| 1969 | } |
|---|
| 1970 | *(((memId_t *)pmt)-1) = memId; |
|---|
| 1971 | *returnPmt = pmt; |
|---|
| 1972 | memId = 0; /* Don't delete below */ |
|---|
| 1973 | |
|---|
| 1974 | ParseExit: |
|---|
| 1975 | if (memId) { |
|---|
| 1976 | /* delete the patSection memory */ |
|---|
| 1977 | memChainDestroy(memId); |
|---|
| 1978 | } |
|---|
| 1979 | |
|---|
| 1980 | |
|---|
| 1981 | |
|---|
| 1982 | return(err); |
|---|
| 1983 | } |
|---|
| 1984 | |
|---|
| 1985 | |
|---|
| 1986 | /*============================================================================== |
|---|
| 1987 | DHL_RESULT ParseTVCTSection (DS_U8 *section, tvctSectionPtr_t *tvctSectionPtr) |
|---|
| 1988 | |
|---|
| 1989 | *section: Pointer to the first byte of the section. |
|---|
| 1990 | *tvctSectionPtr: Return pointer to a parsed TVCT section. |
|---|
| 1991 | |
|---|
| 1992 | Parses an TVCT section and returns the decoded section via the provided |
|---|
| 1993 | handle. |
|---|
| 1994 | ==============================================================================*/ |
|---|
| 1995 | static int DHL_PSI_ParseTVCTSection (DS_U8 *section, tvctSectionPtr_t *tvctSectionPtr) |
|---|
| 1996 | { |
|---|
| 1997 | T(); |
|---|
| 1998 | if (get_section_syntax_indicator(section) == 0) |
|---|
| 1999 | { |
|---|
| 2000 | DST_Printf("TVCT: section_syntax_indicator not set\n"); |
|---|
| 2001 | } |
|---|
| 2002 | if (get_private_indicator(section) == 0) |
|---|
| 2003 | { |
|---|
| 2004 | DST_Printf("TVCT: private_indicator not set\n"); |
|---|
| 2005 | } |
|---|
| 2006 | |
|---|
| 2007 | int err = 0; |
|---|
| 2008 | DS_U16 section_length = get_section_length(section); |
|---|
| 2009 | DST_Printf("section_length=%d\n", section_length); |
|---|
| 2010 | if (section_length > 1021) |
|---|
| 2011 | { |
|---|
| 2012 | DST_Printf("TVCT: section_length=%d\n",section_length); |
|---|
| 2013 | return DHL_FAIL_INVALID_PARAM; |
|---|
| 2014 | } |
|---|
| 2015 | |
|---|
| 2016 | memId_t memId = (memId_t)0; /* create the memChain */ |
|---|
| 2017 | err = memChainCreate(&memId); |
|---|
| 2018 | if (err) |
|---|
| 2019 | { |
|---|
| 2020 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2021 | } |
|---|
| 2022 | /* allocate memory for tvctSection */ |
|---|
| 2023 | tvctSectionPtr_t tvctSectPtr = (tvctSectionPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(tvctSection_t)+sizeof(memId_t))) + 1); |
|---|
| 2024 | // checkMemoryError(tvctSectPtr); |
|---|
| 2025 | |
|---|
| 2026 | DS_U8 *p = section+3; |
|---|
| 2027 | /* parse section */ |
|---|
| 2028 | tvctSectPtr->transport_stream_id = p[0] * 256 + p[1]; |
|---|
| 2029 | tvctSectPtr->version_number = (p[2] >> 1) & 0x3F; |
|---|
| 2030 | tvctSectPtr->current_next_indicator = p[2] & 0x01; |
|---|
| 2031 | tvctSectPtr->section_number = p[3]; |
|---|
| 2032 | tvctSectPtr->last_section_number = p[4]; |
|---|
| 2033 | |
|---|
| 2034 | DS_U8 protocol_version = p[5]; |
|---|
| 2035 | |
|---|
| 2036 | if (protocol_version > 0) |
|---|
| 2037 | { |
|---|
| 2038 | DST_Printf("TVCT : invalid protocol version.(0x%x).\r\n" , protocol_version ); |
|---|
| 2039 | if (memId) memChainDestroy(memId); |
|---|
| 2040 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 2041 | } |
|---|
| 2042 | |
|---|
| 2043 | int count_i = tvctSectPtr->num_channels_in_section = p[6]; |
|---|
| 2044 | DST_Printf("tvctSectPtr->num_channels_in_section=%d\n" , tvctSectPtr->num_channels_in_section ); |
|---|
| 2045 | if( count_i > 0 ) |
|---|
| 2046 | { |
|---|
| 2047 | tvctSectPtr->channel = (tvctChannelPtr_t)memChainAlloc(memId,count_i*sizeof(tvctChannel_t)); |
|---|
| 2048 | checkMemoryError(tvctSectPtr->channel); |
|---|
| 2049 | } |
|---|
| 2050 | |
|---|
| 2051 | p = p+7; |
|---|
| 2052 | for (int i=0; i<count_i; i++) |
|---|
| 2053 | { |
|---|
| 2054 | for (int j=0; j<7; j++) |
|---|
| 2055 | { |
|---|
| 2056 | tvctSectPtr->channel[i].short_name[j] = p[j*2] * 256 + p[j*2+1]; |
|---|
| 2057 | } |
|---|
| 2058 | tvctSectPtr->channel[i].major_channel_number = (p[14] & 0x0F) * 64 + ((p[15] >> 2) & 0x3F); |
|---|
| 2059 | tvctSectPtr->channel[i].minor_channel_number = (p[15] & 0x03) * 256 + p[16]; |
|---|
| 2060 | |
|---|
| 2061 | DST_Printf("tvctSectPtr->channel[i].major_channel_number == %d\n",tvctSectPtr->channel[i].major_channel_number); |
|---|
| 2062 | DST_Printf("tvctSectPtr->channel[i].minor_channel_number == %d\n",tvctSectPtr->channel[i].minor_channel_number); |
|---|
| 2063 | |
|---|
| 2064 | tvctSectPtr->channel[i].modulation_mode = (modulation_mode_k)p[17]; |
|---|
| 2065 | tvctSectPtr->channel[i].carrier_frequency = p[18] * 0x1000000 + p[19] * 0x10000 + p[20] * 0x100 + p[21]; |
|---|
| 2066 | tvctSectPtr->channel[i].channel_TSID = p[22] * 0x100 + p[23]; |
|---|
| 2067 | tvctSectPtr->channel[i].program_number = p[24] * 0x100 + p[25]; |
|---|
| 2068 | tvctSectPtr->channel[i].ETM_location = (ETM_location_k)((p[26] >> 6) & 0x03); |
|---|
| 2069 | tvctSectPtr->channel[i].access_controlled = (p[26] >> 5) & 0x01; |
|---|
| 2070 | tvctSectPtr->channel[i].hidden = (p[26] >> 4) & 0x01; |
|---|
| 2071 | tvctSectPtr->channel[i].show_guide = (p[26] >> 1) & 0x01; |
|---|
| 2072 | tvctSectPtr->channel[i].service_type = (service_type_k)(p[27]& 0x3F); |
|---|
| 2073 | tvctSectPtr->channel[i].source_id = p[28] * 256 + p[29]; |
|---|
| 2074 | int count_j = tvctSectPtr->channel[i].descriptor_length = (p[30]&0x03) * 256 + p[31]; |
|---|
| 2075 | tvctSectPtr->channel[i].descriptors = (DS_U8 *)memChainAlloc(memId,count_j); |
|---|
| 2076 | checkMemoryError(tvctSectPtr->channel[i].descriptors); |
|---|
| 2077 | DST_Printf("tvctSectPtr->channel[i].descriptor_lengthr == %d\n",tvctSectPtr->channel[i].descriptor_length); |
|---|
| 2078 | for (int j=0; j<count_j; j++) |
|---|
| 2079 | { |
|---|
| 2080 | tvctSectPtr->channel[i].descriptors[j] = p[32+j]; |
|---|
| 2081 | } |
|---|
| 2082 | p = p + 32 + count_j; |
|---|
| 2083 | } |
|---|
| 2084 | count_i = tvctSectPtr->additional_descriptor_length = (p[0]&0x03) * 256 + p[1]; |
|---|
| 2085 | tvctSectPtr->additional_descriptors = (DS_U8 *)memChainAlloc(memId,count_i); |
|---|
| 2086 | checkMemoryError(tvctSectPtr->additional_descriptors); |
|---|
| 2087 | |
|---|
| 2088 | for (int i=0; i<count_i; i++) |
|---|
| 2089 | { |
|---|
| 2090 | tvctSectPtr->additional_descriptors[i] = p[2+i]; |
|---|
| 2091 | } |
|---|
| 2092 | |
|---|
| 2093 | /* parsing complete */ |
|---|
| 2094 | *(((memId_t *)tvctSectPtr)-1) = memId; |
|---|
| 2095 | memId = (memId_t)0; /* so memChain not deleted */ |
|---|
| 2096 | ParseExit: |
|---|
| 2097 | // if (bits) { |
|---|
| 2098 | // /* clean up the bitBuffer */ |
|---|
| 2099 | // bitBufferDestroy(bits); |
|---|
| 2100 | // } |
|---|
| 2101 | if (memId) { |
|---|
| 2102 | /* delete the tvctSection memory */ |
|---|
| 2103 | memChainDestroy(memId); |
|---|
| 2104 | } |
|---|
| 2105 | |
|---|
| 2106 | *tvctSectionPtr = tvctSectPtr; |
|---|
| 2107 | return (err); |
|---|
| 2108 | } |
|---|
| 2109 | |
|---|
| 2110 | /*============================================================================== |
|---|
| 2111 | DHL_RESULT DHL_PSI_ParseTVCT (DS_U8 **sectionArr, tvctPtr_t *tvctPtr) |
|---|
| 2112 | |
|---|
| 2113 | **sectionArr: Array of pointers to all TVCT sections. |
|---|
| 2114 | *tvctPtr: Returned pointer to the parsed TVCT. |
|---|
| 2115 | |
|---|
| 2116 | Parses an TVCT and returns the parsed table via the return pointer. |
|---|
| 2117 | ==============================================================================*/ |
|---|
| 2118 | int DHL_PSI_ParseTVCT (DS_U8 **sectionArr, tvctPtr_t *tvctPtr) |
|---|
| 2119 | { |
|---|
| 2120 | T(); |
|---|
| 2121 | if (sectionArr == 0) |
|---|
| 2122 | { |
|---|
| 2123 | DST_Printf("%s|%d|sectionArr == 0\n", __func__, __LINE__); |
|---|
| 2124 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 2125 | } |
|---|
| 2126 | if (sectionArr[0] == 0) |
|---|
| 2127 | { |
|---|
| 2128 | DST_Printf("%s|%d|sectionArr[0] == 0\n", __func__, __LINE__); |
|---|
| 2129 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 2130 | } |
|---|
| 2131 | if (tvctPtr == 0) |
|---|
| 2132 | { |
|---|
| 2133 | DST_Printf("%s|%d|tvctPtr == 0\n", __func__, __LINE__); |
|---|
| 2134 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 2135 | } |
|---|
| 2136 | *tvctPtr = 0; |
|---|
| 2137 | |
|---|
| 2138 | DS_U8 numSections = get_last_section_number(sectionArr[0]) + 1; |
|---|
| 2139 | DST_Printf("numSections = %d\n", numSections); |
|---|
| 2140 | for (int i=1; i < numSections; i++) /* now verify all other sections are present */ |
|---|
| 2141 | { |
|---|
| 2142 | if (sectionArr[i] == 0) |
|---|
| 2143 | { |
|---|
| 2144 | DST_Printf("%s|%d|null section found.\n", __func__, __LINE__); |
|---|
| 2145 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 2146 | } |
|---|
| 2147 | } |
|---|
| 2148 | for( int i=0; i < numSections; i++ ) /*chech the protocol_version of each secion.*/ |
|---|
| 2149 | { |
|---|
| 2150 | if( sectionArr[i][8] != 0x00 ) |
|---|
| 2151 | { |
|---|
| 2152 | DST_Printf("%s|%d|invalid protocol version\n", __func__, __LINE__); |
|---|
| 2153 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 2154 | } |
|---|
| 2155 | } |
|---|
| 2156 | |
|---|
| 2157 | /* create the memChain */ |
|---|
| 2158 | memId_t memId = (memId_t)0; |
|---|
| 2159 | int err = memChainCreate(&memId); |
|---|
| 2160 | if (err) |
|---|
| 2161 | { |
|---|
| 2162 | DST_Printf("%s|%d|memChainCreate fail\n", __func__, __LINE__); |
|---|
| 2163 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2164 | } |
|---|
| 2165 | /* allocate memory for tvct */ |
|---|
| 2166 | *tvctPtr = (tvctPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(tvct_t)+sizeof(memId_t))) + 1); |
|---|
| 2167 | // checkMemoryError(*tvctPtr); |
|---|
| 2168 | |
|---|
| 2169 | /* Get the total number of channels in all sections */ |
|---|
| 2170 | DS_U16 numChannels = 0; |
|---|
| 2171 | for (int i=0; i<numSections; i++) |
|---|
| 2172 | { |
|---|
| 2173 | numChannels += sectionArr[i][9]; |
|---|
| 2174 | } |
|---|
| 2175 | |
|---|
| 2176 | (*tvctPtr)->numChannels = numChannels; |
|---|
| 2177 | |
|---|
| 2178 | /* allocate space in tvct for channels */ |
|---|
| 2179 | (*tvctPtr)->channel = (tvctChannelPtr_t)memChainAlloc(memId,numChannels*sizeof(tvctChannel_t)); |
|---|
| 2180 | checkMemoryError((*tvctPtr)->channel); |
|---|
| 2181 | |
|---|
| 2182 | // #ifdef PSI_DBG |
|---|
| 2183 | // DST_Printf("DHL_PSI_ParseTVCT, numSection = %d\r\n", numSections); |
|---|
| 2184 | // #endif |
|---|
| 2185 | |
|---|
| 2186 | /* Parse each section and copy channels */ |
|---|
| 2187 | numChannels = 0; |
|---|
| 2188 | for (int i=0; i<numSections; i++) |
|---|
| 2189 | { |
|---|
| 2190 | /* Parse the section */ |
|---|
| 2191 | tvctSectionPtr_t tvctSectPtr = 0; |
|---|
| 2192 | if (DHL_PSI_ParseTVCTSection(sectionArr[i], &tvctSectPtr) != 0) |
|---|
| 2193 | { |
|---|
| 2194 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2195 | goto ParseExit; |
|---|
| 2196 | } |
|---|
| 2197 | |
|---|
| 2198 | if (i == 0) |
|---|
| 2199 | { |
|---|
| 2200 | /* duplicate fields copied once */ |
|---|
| 2201 | (*tvctPtr)->transport_stream_id = tvctSectPtr->transport_stream_id; |
|---|
| 2202 | (*tvctPtr)->version_number = tvctSectPtr->version_number; |
|---|
| 2203 | |
|---|
| 2204 | /* allocate space for descriptors and copy (if any) */ |
|---|
| 2205 | if (tvctSectPtr->additional_descriptor_length > 0) |
|---|
| 2206 | { |
|---|
| 2207 | (*tvctPtr)->additional_descriptors = (DS_U8 *)memChainAlloc(memId,tvctSectPtr->additional_descriptor_length); |
|---|
| 2208 | if ((*tvctPtr)->additional_descriptors == 0) |
|---|
| 2209 | { |
|---|
| 2210 | DHL_PSI_FreeMpegSection(tvctSectPtr); |
|---|
| 2211 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2212 | goto ParseExit; |
|---|
| 2213 | } |
|---|
| 2214 | |
|---|
| 2215 | (*tvctPtr)->additional_descriptor_length = tvctSectPtr->additional_descriptor_length; |
|---|
| 2216 | memcpy((*tvctPtr)->additional_descriptors, tvctSectPtr->additional_descriptors, (*tvctPtr)->additional_descriptor_length); |
|---|
| 2217 | } |
|---|
| 2218 | } |
|---|
| 2219 | for (int j=0; j<tvctSectPtr->num_channels_in_section; j++) |
|---|
| 2220 | { |
|---|
| 2221 | memcpy(&((*tvctPtr)->channel[numChannels]), &(tvctSectPtr->channel[j]), sizeof(tvctChannel_t)); |
|---|
| 2222 | /* allocate space for descriptors and copy (if any) */ |
|---|
| 2223 | if (tvctSectPtr->channel[j].descriptor_length > 0) |
|---|
| 2224 | { |
|---|
| 2225 | (*tvctPtr)->channel[numChannels].descriptors = (DS_U8 *)memChainAlloc(memId,tvctSectPtr->channel[j].descriptor_length*sizeof(DS_U8)); |
|---|
| 2226 | if ((*tvctPtr)->channel[numChannels].descriptors == 0) |
|---|
| 2227 | { |
|---|
| 2228 | DHL_PSI_FreeMpegSection(tvctSectPtr); |
|---|
| 2229 | err = DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2230 | goto ParseExit; |
|---|
| 2231 | } |
|---|
| 2232 | memcpy((*tvctPtr)->channel[numChannels].descriptors,tvctSectPtr->channel[j].descriptors, (*tvctPtr)->channel[numChannels].descriptor_length); |
|---|
| 2233 | } |
|---|
| 2234 | numChannels++; |
|---|
| 2235 | } |
|---|
| 2236 | DHL_PSI_FreeMpegSection(tvctSectPtr); |
|---|
| 2237 | } |
|---|
| 2238 | |
|---|
| 2239 | /* parsing complete */ |
|---|
| 2240 | *(((memId_t *)(*tvctPtr))-1) = memId; |
|---|
| 2241 | memId = 0; /* so memChain not deleted */ |
|---|
| 2242 | |
|---|
| 2243 | ParseExit: |
|---|
| 2244 | if (memId) { |
|---|
| 2245 | /* delete the tvct memory */ |
|---|
| 2246 | memChainDestroy(memId); |
|---|
| 2247 | } |
|---|
| 2248 | return (err); |
|---|
| 2249 | } |
|---|
| 2250 | |
|---|
| 2251 | /*============================================================================== |
|---|
| 2252 | ParseCaptionServiceDescriptor |
|---|
| 2253 | *p: Pointer to the un-parsed descriptor. |
|---|
| 2254 | *descripPtr Pointer to parsed descriptor passed here. |
|---|
| 2255 | |
|---|
| 2256 | Parses the descriptor and passes the result back via the descripPtr variable. |
|---|
| 2257 | ==============================================================================*/ |
|---|
| 2258 | int DHL_PSI_ParseCaptionServiceDescriptor (DS_U8* p, captionServiceDescriptorPtr_t *descripPtr) |
|---|
| 2259 | { |
|---|
| 2260 | memId_t memId; |
|---|
| 2261 | if (memChainCreate(&memId)) return DHL_FAIL_OUT_OF_RESOURCE; /* create the memChain */ |
|---|
| 2262 | /* create the descriptor memory */ |
|---|
| 2263 | *descripPtr = (captionServiceDescriptorPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(captionServiceDescriptor_t)+sizeof(memId_t))) + 1); |
|---|
| 2264 | if (*descripPtr == 0) |
|---|
| 2265 | { |
|---|
| 2266 | memChainDestroy(memId); |
|---|
| 2267 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2268 | } |
|---|
| 2269 | /* parse the descriptor */ |
|---|
| 2270 | int count_i = (*descripPtr)->number_of_services = p[2] & 0x1F; |
|---|
| 2271 | DST_Printf("count_i = %d\n", count_i); |
|---|
| 2272 | (*descripPtr)->service = (captionServicePtr_t)memChainAlloc(memId,count_i*sizeof(captionService_t)); |
|---|
| 2273 | if ((*descripPtr)->service == 0) |
|---|
| 2274 | { |
|---|
| 2275 | memChainDestroy(memId); |
|---|
| 2276 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2277 | } |
|---|
| 2278 | int nPos = 3; |
|---|
| 2279 | for (int i=0; i<count_i; i++) { |
|---|
| 2280 | (*descripPtr)->service[i].language[0] = p[nPos++]; |
|---|
| 2281 | (*descripPtr)->service[i].language[1] = p[nPos++]; |
|---|
| 2282 | (*descripPtr)->service[i].language[2] = p[nPos++]; |
|---|
| 2283 | (*descripPtr)->service[i].language[3] = 0; |
|---|
| 2284 | (*descripPtr)->service[i].cc_type = (cc_type_k)((p[nPos] >> 7) & 0x01); |
|---|
| 2285 | if ((*descripPtr)->service[i].cc_type == cct_line21) |
|---|
| 2286 | { |
|---|
| 2287 | (*descripPtr)->service[i].cc_id.line21_field = (line21_field_k)(p[nPos] &0x01); |
|---|
| 2288 | } |
|---|
| 2289 | else |
|---|
| 2290 | { |
|---|
| 2291 | (*descripPtr)->service[i].cc_id.caption_service_number = (p[nPos] &0x3F); |
|---|
| 2292 | } |
|---|
| 2293 | nPos++; |
|---|
| 2294 | (*descripPtr)->service[i].easy_reader = (p[nPos] >> 7) & 0x01; |
|---|
| 2295 | (*descripPtr)->service[i].wide_aspect_ratio = (p[nPos] >> 6) & 0x01; |
|---|
| 2296 | (*descripPtr)->service[i].korean_code = (p[nPos] >> 5) & 0x01; |
|---|
| 2297 | nPos += 2; |
|---|
| 2298 | } |
|---|
| 2299 | |
|---|
| 2300 | /* parsing complete */ |
|---|
| 2301 | *(((memId_t *)(*descripPtr))-1) = memId; |
|---|
| 2302 | memId = 0; /* so memChain not deleted */ |
|---|
| 2303 | |
|---|
| 2304 | //ParseDescriptorExit: |
|---|
| 2305 | memChainDestroy(memId); /* delete the descriptor memory */ |
|---|
| 2306 | return 0; |
|---|
| 2307 | } |
|---|
| 2308 | |
|---|
| 2309 | /*============================================================================== |
|---|
| 2310 | void DHL_PSI_FreeMpegDescriptor (void *descriptorPtr) |
|---|
| 2311 | |
|---|
| 2312 | descriptorPtr Pointer to a parsed descriptor. |
|---|
| 2313 | |
|---|
| 2314 | Frees the memory associated with a parsed descriptor. |
|---|
| 2315 | ==============================================================================*/ |
|---|
| 2316 | void DHL_PSI_FreeMpegDescriptor (void *descriptorPtr) |
|---|
| 2317 | { |
|---|
| 2318 | if(descriptorPtr ) memChainDestroy(*(((memId_t *)descriptorPtr)-1)); |
|---|
| 2319 | } |
|---|
| 2320 | |
|---|
| 2321 | /*============================================================================== |
|---|
| 2322 | ParseAc3AudioStreamDescriptor |
|---|
| 2323 | |
|---|
| 2324 | *p: Pointer to the un-parsed descriptor. |
|---|
| 2325 | *descripPtr Pointer to parsed descriptor passed here. |
|---|
| 2326 | |
|---|
| 2327 | Parses the descriptor and passes the result back via the descripPtr variable. |
|---|
| 2328 | ==============================================================================*/ |
|---|
| 2329 | int DHL_PSI_ParseAc3AudioStreamDescriptor (DS_U8* p, ac3AudioStreamDescriptorPtr_t *descripPtr) |
|---|
| 2330 | { |
|---|
| 2331 | /* create the memChain */ |
|---|
| 2332 | memId_t memId; |
|---|
| 2333 | if (memChainCreate(&memId)) return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2334 | /* create the descriptor memory */ |
|---|
| 2335 | *descripPtr = (ac3AudioStreamDescriptorPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(ac3AudioStreamDescriptor_t)+sizeof(memId_t))) + 1); |
|---|
| 2336 | if (*descripPtr == 0) |
|---|
| 2337 | { |
|---|
| 2338 | memChainDestroy(memId); |
|---|
| 2339 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2340 | } |
|---|
| 2341 | |
|---|
| 2342 | /* parse the descriptor */ |
|---|
| 2343 | DS_U8 length = p[1]; |
|---|
| 2344 | (*descripPtr)->sample_rate_code = (sample_rate_code_k)((p[2] >> 5) & 0x07); |
|---|
| 2345 | (*descripPtr)->bsid = (p[2] & 0x1F); |
|---|
| 2346 | (*descripPtr)->bit_rate_code = (bit_rate_code_k) ((p[3] >> 2) & 0x3F); |
|---|
| 2347 | (*descripPtr)->surround_mode = (surround_mode_k)(p[3] & 0x03); |
|---|
| 2348 | (*descripPtr)->bsmod = (bit_stream_mode_k)((p[4] >> 5) & 0x07); |
|---|
| 2349 | (*descripPtr)->num_channels = (num_channels_k)((p[4] >> 1) & 0x0F); |
|---|
| 2350 | (*descripPtr)->full_svc = (p[4] & 0x01); |
|---|
| 2351 | int nPos = 5; |
|---|
| 2352 | if (length > 3) { |
|---|
| 2353 | (*descripPtr)->additional_elements1 = true; |
|---|
| 2354 | (*descripPtr)->langcod = (language_code_k)p[nPos++]; |
|---|
| 2355 | |
|---|
| 2356 | /* compute length of lang2 field */ |
|---|
| 2357 | DS_U8 lang2_len = (*descripPtr)->num_channels == nc_acmod_1_1 ? 1 : 0; |
|---|
| 2358 | |
|---|
| 2359 | if (length > 4 && lang2_len) { |
|---|
| 2360 | (*descripPtr)->langcod2 = (language_code_k)p[nPos++]; |
|---|
| 2361 | } |
|---|
| 2362 | |
|---|
| 2363 | if (length > 4+lang2_len) { |
|---|
| 2364 | (*descripPtr)->additional_elements2 = true; |
|---|
| 2365 | if ((*descripPtr)->bsmod < 2) { |
|---|
| 2366 | (*descripPtr)->bsmod_ext.mainid = (p[nPos++] >> 5) & 0x07; |
|---|
| 2367 | } |
|---|
| 2368 | else { |
|---|
| 2369 | (*descripPtr)->bsmod_ext.asvcflags = (p[nPos++] >> 5); |
|---|
| 2370 | } |
|---|
| 2371 | |
|---|
| 2372 | if (length > 5+lang2_len) { |
|---|
| 2373 | DS_U16 count_i = (*descripPtr)->textlen = (p[nPos] >> 1) & 0x7F; |
|---|
| 2374 | (*descripPtr)->text_code = (text_code_k)(p[nPos++] & 0x01); |
|---|
| 2375 | (*descripPtr)->text = 0; |
|---|
| 2376 | if (count_i > 0) |
|---|
| 2377 | { |
|---|
| 2378 | (*descripPtr)->text = (DS_U8 *)memChainAlloc(memId,count_i*sizeof(DS_U8)); |
|---|
| 2379 | if ((*descripPtr)->text == 0) |
|---|
| 2380 | { |
|---|
| 2381 | memChainDestroy(memId); |
|---|
| 2382 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2383 | } |
|---|
| 2384 | for (int i=0; i<count_i; i++) |
|---|
| 2385 | { |
|---|
| 2386 | (*descripPtr)->text[i] = p[nPos++]; |
|---|
| 2387 | } |
|---|
| 2388 | } |
|---|
| 2389 | (*descripPtr)->langflag = 0; |
|---|
| 2390 | (*descripPtr)->langflag_2 = 0; |
|---|
| 2391 | (*descripPtr)->language[0] = 0; |
|---|
| 2392 | (*descripPtr)->language[1] = 0; |
|---|
| 2393 | (*descripPtr)->language[2] = 0; |
|---|
| 2394 | (*descripPtr)->language[3] = 0; |
|---|
| 2395 | (*descripPtr)->language2[0] = 0; |
|---|
| 2396 | (*descripPtr)->language2[1] = 0; |
|---|
| 2397 | (*descripPtr)->language2[2] = 0; |
|---|
| 2398 | (*descripPtr)->language2[3] = 0; |
|---|
| 2399 | if (length > 5+lang2_len+1+count_i) |
|---|
| 2400 | { |
|---|
| 2401 | /* see if we have 0, 1, or 2 ISO 639 language fields */ |
|---|
| 2402 | (*descripPtr)->langflag = (p[nPos] >> 7) & 0x01; |
|---|
| 2403 | (*descripPtr)->langflag_2 =(p[nPos] >> 6) & 0x01; |
|---|
| 2404 | nPos++; |
|---|
| 2405 | int lang639_len = 6 + lang2_len + 1 + count_i; |
|---|
| 2406 | if (((*descripPtr)->langflag) && |
|---|
| 2407 | (length >= lang639_len + 3)) |
|---|
| 2408 | { |
|---|
| 2409 | lang639_len += 3; /* so lang2 is independent! */ |
|---|
| 2410 | (*descripPtr)->language[0] =p[nPos++]; |
|---|
| 2411 | (*descripPtr)->language[1] =p[nPos++]; |
|---|
| 2412 | (*descripPtr)->language[2] =p[nPos++]; |
|---|
| 2413 | (*descripPtr)->language[3] = 0; |
|---|
| 2414 | } |
|---|
| 2415 | |
|---|
| 2416 | if (((*descripPtr)->langflag_2) && |
|---|
| 2417 | (length >= lang639_len + 3)) |
|---|
| 2418 | { |
|---|
| 2419 | (*descripPtr)->language2[0] = p[nPos++]; |
|---|
| 2420 | (*descripPtr)->language2[1] = p[nPos++]; |
|---|
| 2421 | (*descripPtr)->language2[2] = p[nPos++]; |
|---|
| 2422 | (*descripPtr)->language2[3] = 0; |
|---|
| 2423 | } |
|---|
| 2424 | } |
|---|
| 2425 | } |
|---|
| 2426 | } |
|---|
| 2427 | } |
|---|
| 2428 | |
|---|
| 2429 | /* Ignore remaining 'additional_info' bytes */ |
|---|
| 2430 | |
|---|
| 2431 | /* parsing complete */ |
|---|
| 2432 | *(((memId_t *)(*descripPtr))-1) = memId; |
|---|
| 2433 | memId = 0; /* so memChain not deleted */ |
|---|
| 2434 | |
|---|
| 2435 | // ParseDescriptorExit: |
|---|
| 2436 | // if (bits) { |
|---|
| 2437 | // /* delete the bitBuffer */ |
|---|
| 2438 | // bitBufferDestroy(bits); |
|---|
| 2439 | // } |
|---|
| 2440 | if (memId) { |
|---|
| 2441 | /* delete the descriptor memory */ |
|---|
| 2442 | memChainDestroy(memId); |
|---|
| 2443 | } |
|---|
| 2444 | return 0; |
|---|
| 2445 | } |
|---|
| 2446 | |
|---|
| 2447 | /*============================================================================== |
|---|
| 2448 | DHL_RESULT DHL_PSI_ParseMGTSection (DS_U8 *section, mgtSectionPtr_t *mgtSectionPtr) |
|---|
| 2449 | |
|---|
| 2450 | *section: Pointer to the first byte of the section. |
|---|
| 2451 | *mgtSectionPtr: Return pointer to a parsed MGT section. |
|---|
| 2452 | |
|---|
| 2453 | Parses an MGT section and returns the decoded section via the provided |
|---|
| 2454 | handle. |
|---|
| 2455 | ==============================================================================*/ |
|---|
| 2456 | int DHL_PSI_ParseMGTSection (DS_U8 *section, mgtSectionPtr_t *mgtSectionPtr) |
|---|
| 2457 | { |
|---|
| 2458 | if (get_section_syntax_indicator(section) == 0) |
|---|
| 2459 | { |
|---|
| 2460 | DST_Printf("MGT: section_syntax_indicator not set\n"); |
|---|
| 2461 | } |
|---|
| 2462 | if (get_private_indicator(section) == 0) |
|---|
| 2463 | { |
|---|
| 2464 | DST_Printf("MGT: private_indicator not set\n"); |
|---|
| 2465 | } |
|---|
| 2466 | |
|---|
| 2467 | int section_length = get_section_length(section); |
|---|
| 2468 | if (section_length > 4093) |
|---|
| 2469 | { |
|---|
| 2470 | DST_Printf("MGT: section_length=%d\n",section_length); |
|---|
| 2471 | return DHL_FAIL_INVALID_PARAM; |
|---|
| 2472 | } |
|---|
| 2473 | |
|---|
| 2474 | /* create the memChain */ |
|---|
| 2475 | memId_t memId; |
|---|
| 2476 | if (memChainCreate(&memId)) |
|---|
| 2477 | { |
|---|
| 2478 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2479 | } |
|---|
| 2480 | /* allocate memory for mgtSection */ |
|---|
| 2481 | mgtSectionPtr_t mgtSectPtr = (mgtSectionPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(mgtSection_t)+sizeof(memId_t))) + 1); |
|---|
| 2482 | if (mgtSectPtr == 0) |
|---|
| 2483 | { |
|---|
| 2484 | memChainDestroy(memId); |
|---|
| 2485 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2486 | } |
|---|
| 2487 | |
|---|
| 2488 | DS_U8 *p = section; |
|---|
| 2489 | |
|---|
| 2490 | |
|---|
| 2491 | |
|---|
| 2492 | /* parse section */ |
|---|
| 2493 | DS_U16 table_id_extension = p[3]*256+p[4];//(p[nPos++]*256) + p[nPos++]; |
|---|
| 2494 | if (table_id_extension != 0x0000) { |
|---|
| 2495 | /*DST_Printf("MGT: table_id_extension != 0x0000");*/ |
|---|
| 2496 | } |
|---|
| 2497 | DST_Printf("table_id_extension=%d\n",table_id_extension); |
|---|
| 2498 | mgtSectPtr->version_number = (p[5] >> 1) & 0x1F; |
|---|
| 2499 | |
|---|
| 2500 | int current_next_indicator = p[5]&0x01; |
|---|
| 2501 | DST_Printf("mgtSectPtr->version_number=%d\n",mgtSectPtr->version_number); |
|---|
| 2502 | DST_Printf("current_next_indicator=%d\n",current_next_indicator); |
|---|
| 2503 | |
|---|
| 2504 | if (current_next_indicator != 1) { |
|---|
| 2505 | DST_Printf("MGT: current_next_indicator != 1\n"); |
|---|
| 2506 | } |
|---|
| 2507 | int section_number = p[6]; |
|---|
| 2508 | DST_Printf("section_number=%d\n",section_number); |
|---|
| 2509 | if (section_number != 0x00) |
|---|
| 2510 | { |
|---|
| 2511 | DST_Printf("MGT: section_number != 0x00\n"); |
|---|
| 2512 | } |
|---|
| 2513 | int last_section_number = p[7]; |
|---|
| 2514 | DST_Printf("last_section_number=%d\n",last_section_number); |
|---|
| 2515 | if (last_section_number != 0x00) |
|---|
| 2516 | { |
|---|
| 2517 | DST_Printf("MGT: last_section_number != 0x00\n"); |
|---|
| 2518 | } |
|---|
| 2519 | int protocol_version = p[8]; |
|---|
| 2520 | DST_Printf("protocol_version=%d\n",protocol_version); |
|---|
| 2521 | if (protocol_version > 0x00/* PSIP_PROTOCOL_VERSION*/) |
|---|
| 2522 | { |
|---|
| 2523 | memChainDestroy(memId); |
|---|
| 2524 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 2525 | } |
|---|
| 2526 | |
|---|
| 2527 | int count_i = mgtSectPtr->tables_defined = p[9]*256 + p[10]; |
|---|
| 2528 | mgtSectPtr->table = (mgtTablePtr_t)memChainAlloc(memId,count_i*sizeof(mgtTable_t)); |
|---|
| 2529 | if (mgtSectPtr->table == 0) |
|---|
| 2530 | { |
|---|
| 2531 | memChainDestroy(memId); |
|---|
| 2532 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2533 | } |
|---|
| 2534 | int nPos = 11; |
|---|
| 2535 | for (int i=0; i<count_i; i++) |
|---|
| 2536 | { |
|---|
| 2537 | mgtSectPtr->table[i].table_type = (table_type_k)(p[nPos]*256 + p[nPos+1]); |
|---|
| 2538 | nPos += 2; |
|---|
| 2539 | mgtSectPtr->table[i].table_type_PID = (p[nPos]&0x1F)*256 + p[nPos+1]; |
|---|
| 2540 | nPos += 2; |
|---|
| 2541 | mgtSectPtr->table[i].table_type_version_number = p[nPos++]&0x1F; |
|---|
| 2542 | mgtSectPtr->table[i].number_bytes = p[nPos] * 0x1000000 + p[nPos+1] * 0x10000 + p[nPos+2] * 0x100 + p[nPos+3]; |
|---|
| 2543 | nPos += 4; |
|---|
| 2544 | int count_j = mgtSectPtr->table[i].descriptor_length= (p[nPos]&0x0F)*256 + p[nPos+1]; |
|---|
| 2545 | nPos += 2; |
|---|
| 2546 | mgtSectPtr->table[i].descriptors = (DS_U8 *)memChainAlloc(memId,count_j); |
|---|
| 2547 | if (mgtSectPtr->table[i].descriptors == 0) |
|---|
| 2548 | { |
|---|
| 2549 | memChainDestroy(memId); |
|---|
| 2550 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2551 | } |
|---|
| 2552 | |
|---|
| 2553 | for (int j=0; j<count_j; j++) |
|---|
| 2554 | { |
|---|
| 2555 | mgtSectPtr->table[i].descriptors[j] = p[nPos++]; |
|---|
| 2556 | } |
|---|
| 2557 | } |
|---|
| 2558 | count_i = mgtSectPtr->descriptor_length = (p[nPos]&0x0F)*256 + p[nPos+1]; |
|---|
| 2559 | nPos += 2; |
|---|
| 2560 | mgtSectPtr->descriptors = (DS_U8 *)memChainAlloc(memId,count_i); |
|---|
| 2561 | if (mgtSectPtr->descriptors == 0) |
|---|
| 2562 | { |
|---|
| 2563 | memChainDestroy(memId); |
|---|
| 2564 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2565 | } |
|---|
| 2566 | |
|---|
| 2567 | for (int i=0; i<count_i; i++) |
|---|
| 2568 | { |
|---|
| 2569 | mgtSectPtr->descriptors[i] = p[nPos++]; |
|---|
| 2570 | } |
|---|
| 2571 | |
|---|
| 2572 | mgtSectPtr->CRC32 = p[nPos] * 0x1000000 + p[nPos+1] * 0x10000 + p[nPos+2] * 0x100 + p[nPos+3]; |
|---|
| 2573 | nPos += 4; |
|---|
| 2574 | /* parsing complete */ |
|---|
| 2575 | *(((memId_t *)mgtSectPtr)-1) = memId; |
|---|
| 2576 | memId = 0; /* so memChain not deleted */ |
|---|
| 2577 | |
|---|
| 2578 | //ParseExit: |
|---|
| 2579 | memChainDestroy(memId); |
|---|
| 2580 | *mgtSectionPtr = mgtSectPtr; |
|---|
| 2581 | return 0; |
|---|
| 2582 | } |
|---|
| 2583 | |
|---|
| 2584 | /*============================================================================== |
|---|
| 2585 | DHL_RESULT DHL_PSI_ParseEIT (DS_U8 **sectionArr, eitPtr_t *eitPtr) |
|---|
| 2586 | |
|---|
| 2587 | **sectionArr: Array of pointers to all EIT sections. |
|---|
| 2588 | *eitPtr: Returned pointer to the parsed EIT. |
|---|
| 2589 | |
|---|
| 2590 | Parses an EIT and returns the parsed table via the return pointer. |
|---|
| 2591 | ==============================================================================*/ |
|---|
| 2592 | int DHL_PSI_ParseEIT (DS_U8 **sectionArr, eitPtr_t *eitPtr) |
|---|
| 2593 | { |
|---|
| 2594 | // DS_U8 numSections; |
|---|
| 2595 | // DS_U16 numEvents; |
|---|
| 2596 | // DS_U16 section_length; |
|---|
| 2597 | // DS_U8 protocol_version; |
|---|
| 2598 | // DS_U16 i,j,k; |
|---|
| 2599 | // DS_U16 count_j, count_k; |
|---|
| 2600 | // memChainSetup_t memSetup = {MEM_LIMIT,0,0}; |
|---|
| 2601 | // memId_t memId = 0; |
|---|
| 2602 | // bitBufferPtr_t bits = 0; |
|---|
| 2603 | // DHL_RESULT err; |
|---|
| 2604 | |
|---|
| 2605 | if (sectionArr == 0 || (eitPtr == 0)) |
|---|
| 2606 | { |
|---|
| 2607 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 2608 | } |
|---|
| 2609 | if (sectionArr[0] == 0) |
|---|
| 2610 | { |
|---|
| 2611 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 2612 | } |
|---|
| 2613 | int numSections = get_last_section_number(sectionArr[0]) + 1; |
|---|
| 2614 | |
|---|
| 2615 | /* now verify all other sections are present */ |
|---|
| 2616 | for (int i=1; i<numSections; i++) |
|---|
| 2617 | { |
|---|
| 2618 | if (sectionArr[i] == 0) |
|---|
| 2619 | { |
|---|
| 2620 | DST_Printf("EIT : null section found.\r\n"); |
|---|
| 2621 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 2622 | } |
|---|
| 2623 | } |
|---|
| 2624 | |
|---|
| 2625 | /*check protocol version of each section.*/ |
|---|
| 2626 | for (int i=0; i< numSections ; i++ ) |
|---|
| 2627 | { |
|---|
| 2628 | if(sectionArr[i][8] != 0/*PSIP_PROTOCOL_VERSION*/) |
|---|
| 2629 | { |
|---|
| 2630 | DST_Printf("EIT : invalid Protocol Version.\r\n"); |
|---|
| 2631 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 2632 | } |
|---|
| 2633 | } |
|---|
| 2634 | /* create the memChain */ |
|---|
| 2635 | memId_t memId = 0; |
|---|
| 2636 | if (memChainCreate(&memId)) |
|---|
| 2637 | { |
|---|
| 2638 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2639 | } |
|---|
| 2640 | /* allocate memory for eit */ |
|---|
| 2641 | *eitPtr = (eitPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(eit_t)+sizeof(memId_t))) + 1); |
|---|
| 2642 | if (eitPtr == 0) |
|---|
| 2643 | { |
|---|
| 2644 | memChainDestroy(memId); |
|---|
| 2645 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2646 | } |
|---|
| 2647 | |
|---|
| 2648 | /* Get the total number of channels in all sections */ |
|---|
| 2649 | int numEvents = 0; |
|---|
| 2650 | for (int i=0; i<numSections; i++) |
|---|
| 2651 | { |
|---|
| 2652 | numEvents += sectionArr[i][9]; |
|---|
| 2653 | } |
|---|
| 2654 | |
|---|
| 2655 | (*eitPtr)->numEvents = numEvents; |
|---|
| 2656 | |
|---|
| 2657 | /* allocate space in eit for events */ |
|---|
| 2658 | (*eitPtr)->event = (eitEventPtr_t)memChainAlloc(memId,numEvents*sizeof(eitEvent_t)); |
|---|
| 2659 | if ((*eitPtr)->event == 0) |
|---|
| 2660 | { |
|---|
| 2661 | memChainDestroy(memId); |
|---|
| 2662 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2663 | } |
|---|
| 2664 | |
|---|
| 2665 | /* Parse each section and copy channels */ |
|---|
| 2666 | numEvents = 0; |
|---|
| 2667 | for (int i=0; i<numSections; i++) |
|---|
| 2668 | { |
|---|
| 2669 | /* create the bitBuffer */ |
|---|
| 2670 | //int section_length = get_section_length(sectionArr[i]); |
|---|
| 2671 | //err = bitBufferCreate(&bits,&(sectionArr[i][3]),section_length); |
|---|
| 2672 | //if (err) { |
|---|
| 2673 | // goto ParseExit; |
|---|
| 2674 | //} |
|---|
| 2675 | DS_U8 *p = §ionArr[i][3]; |
|---|
| 2676 | /* Parse the section */ |
|---|
| 2677 | (*eitPtr)->source_id = p[0] * 256 + p[1]; |
|---|
| 2678 | //bitBufferSkipBits(bits,2); /* reserved */ |
|---|
| 2679 | (*eitPtr)->version_number = (p[2] >> 1) & 0x1F; |
|---|
| 2680 | //bitBufferSkipBits(bits,1); /* current_next_indicator */ |
|---|
| 2681 | //bitBufferSkipBits(bits,8); /* section_number */ |
|---|
| 2682 | //bitBufferSkipBits(bits,8); /* last_section_number */ |
|---|
| 2683 | int protocol_version = p[5]; |
|---|
| 2684 | if (protocol_version > 0/*PSIP_PROTOCOL_VERSION*/) |
|---|
| 2685 | { |
|---|
| 2686 | memChainDestroy(memId); |
|---|
| 2687 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 2688 | } |
|---|
| 2689 | int count_j = p[6];//bitBufferGetBits(bits,8); |
|---|
| 2690 | int nPos = 7; |
|---|
| 2691 | for (int j=0; j<count_j; j++) { |
|---|
| 2692 | //bitBufferSkipBits(bits,2); /* reserved */ |
|---|
| 2693 | (*eitPtr)->event[numEvents].event_id = (p[nPos]&0x3F)*0x100 + p[nPos+1]; //bitBufferGetBits(bits,14); |
|---|
| 2694 | nPos += 2; |
|---|
| 2695 | (*eitPtr)->event[numEvents].start_time = p[nPos] * 0x1000000 + p[nPos+1] * 0x10000 + p[nPos+2] * 0x100 + p[nPos+3];//bitBufferGetBits(bits,32); |
|---|
| 2696 | nPos += 4; |
|---|
| 2697 | //bitBufferSkipBits(bits,2); /* reserved */ |
|---|
| 2698 | (*eitPtr)->event[numEvents].ETM_location = (ETM_location_k)((p[nPos] >> 4) & 0x03); //(ETM_location_k)bitBufferGetBits(bits,2); |
|---|
| 2699 | (*eitPtr)->event[numEvents].length_in_seconds = (p[nPos]&0x0F) * 0x10000 + p[nPos+1] * 0x100 + p[nPos+2];//bitBufferGetBits(bits,20); |
|---|
| 2700 | nPos += 3; |
|---|
| 2701 | int count_k = (*eitPtr)->event[numEvents].title_length = p[nPos]; //bitBufferGetBits(bits,8); |
|---|
| 2702 | nPos += 1; |
|---|
| 2703 | (*eitPtr)->event[numEvents].title = (DS_U8 *)memChainAlloc(memId, count_k); |
|---|
| 2704 | //checkMemoryError((*eitPtr)->event[numEvents].title); |
|---|
| 2705 | if ((*eitPtr)->event[numEvents].title == 0) |
|---|
| 2706 | { |
|---|
| 2707 | memChainDestroy(memId); |
|---|
| 2708 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2709 | } |
|---|
| 2710 | for (int k=0; k<count_k; k++) |
|---|
| 2711 | { |
|---|
| 2712 | (*eitPtr)->event[numEvents].title[k] = p[nPos++]; |
|---|
| 2713 | } |
|---|
| 2714 | |
|---|
| 2715 | //bitBufferSkipBits(bits,4); /* reserved */ |
|---|
| 2716 | count_k = (*eitPtr)->event[numEvents].descriptor_length= (p[nPos]&0x0F) * 0x100 + p[nPos+1] ;//bitBufferGetBits(bits,12); |
|---|
| 2717 | nPos += 2; |
|---|
| 2718 | (*eitPtr)->event[numEvents].descriptors = (DS_U8 *)memChainAlloc(memId,count_k); |
|---|
| 2719 | if ((*eitPtr)->event[numEvents].descriptors == 0) |
|---|
| 2720 | { |
|---|
| 2721 | memChainDestroy(memId); |
|---|
| 2722 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2723 | } |
|---|
| 2724 | |
|---|
| 2725 | for (int k=0; k<count_k; k++) { |
|---|
| 2726 | (*eitPtr)->event[numEvents].descriptors[k]= p[nPos++]; |
|---|
| 2727 | } |
|---|
| 2728 | |
|---|
| 2729 | numEvents++; |
|---|
| 2730 | } |
|---|
| 2731 | |
|---|
| 2732 | // bitBufferDestroy(bits); |
|---|
| 2733 | // bits = 0; |
|---|
| 2734 | } |
|---|
| 2735 | |
|---|
| 2736 | /* parsing complete */ |
|---|
| 2737 | *(((memId_t *)(*eitPtr))-1) = memId; |
|---|
| 2738 | memId = 0; /* so memChain not deleted */ |
|---|
| 2739 | |
|---|
| 2740 | //ParseExit: |
|---|
| 2741 | // if (bits) { |
|---|
| 2742 | // bitBufferDestroy(bits); |
|---|
| 2743 | // } |
|---|
| 2744 | if (memId) { |
|---|
| 2745 | /* delete the cvct memory */ |
|---|
| 2746 | memChainDestroy(memId); |
|---|
| 2747 | } |
|---|
| 2748 | return 0; |
|---|
| 2749 | } |
|---|
| 2750 | |
|---|
| 2751 | /*============================================================================== |
|---|
| 2752 | DHL_RESULT DHL_PSI_ParseETTSection (DS_U8 *section, ettSectionPtr_t *ettSectionPtr) |
|---|
| 2753 | |
|---|
| 2754 | *section: Pointer to the first byte of the section. |
|---|
| 2755 | *ettSectionPtr: Return pointer to a parsed ETT section. |
|---|
| 2756 | |
|---|
| 2757 | Parses an ETT section and returns the decoded section via the provided |
|---|
| 2758 | handle. |
|---|
| 2759 | ==============================================================================*/ |
|---|
| 2760 | int DHL_PSI_ParseETTSection (DS_U8 *section, ettSectionPtr_t *ettSectionPtr) |
|---|
| 2761 | { |
|---|
| 2762 | if (get_section_syntax_indicator(section) == 0) |
|---|
| 2763 | { |
|---|
| 2764 | DST_Printf("ETT: section_syntax_indicator not set\n"); |
|---|
| 2765 | } |
|---|
| 2766 | if (get_private_indicator(section) == 0) |
|---|
| 2767 | { |
|---|
| 2768 | DST_Printf("ETT: private_indicator not set\n"); |
|---|
| 2769 | } |
|---|
| 2770 | |
|---|
| 2771 | int section_length = get_section_length(section); |
|---|
| 2772 | if (section_length > 4093) |
|---|
| 2773 | { |
|---|
| 2774 | DST_Printf("ETT: section_length=%d\n",section_length); |
|---|
| 2775 | return DHL_FAIL_INVALID_PARAM; |
|---|
| 2776 | } |
|---|
| 2777 | |
|---|
| 2778 | /* create the memChain */ |
|---|
| 2779 | memId_t memId = 0; |
|---|
| 2780 | if (memChainCreate(&memId)) |
|---|
| 2781 | { |
|---|
| 2782 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2783 | } |
|---|
| 2784 | /* allocate memory for ettSection */ |
|---|
| 2785 | ettSectionPtr_t ettSectPtr = (ettSectionPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(ettSection_t)+sizeof(memId_t))) + 1); |
|---|
| 2786 | //checkMemoryError(ettSectPtr); |
|---|
| 2787 | if (ettSectPtr == 0) |
|---|
| 2788 | { |
|---|
| 2789 | memChainDestroy(memId); |
|---|
| 2790 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2791 | } |
|---|
| 2792 | |
|---|
| 2793 | /* parse section */ |
|---|
| 2794 | DS_U8 *p = §ion[3]; |
|---|
| 2795 | int table_id_extension = p[0] * 0x100 + p[1]; |
|---|
| 2796 | if (table_id_extension != 0x0000) { |
|---|
| 2797 | /*DST_Printf("ETT: table_id_extension != 0x0000\n");*/ |
|---|
| 2798 | } |
|---|
| 2799 | ettSectPtr->version_number = (p[2]>>1)&0x1F; |
|---|
| 2800 | int current_next_indicator = p[2] & 0x01; |
|---|
| 2801 | if (current_next_indicator != 1) |
|---|
| 2802 | { |
|---|
| 2803 | DST_Printf("ETT: current_next_indicator != 1\n"); |
|---|
| 2804 | } |
|---|
| 2805 | int section_number = p[3]; |
|---|
| 2806 | //DST_Printf("section_number=%d\n",section_number); |
|---|
| 2807 | if (section_number != 0x00) |
|---|
| 2808 | { |
|---|
| 2809 | DST_Printf("ETT: section_number != 0x00\n"); |
|---|
| 2810 | } |
|---|
| 2811 | int last_section_number = p[4]; |
|---|
| 2812 | //DST_Printf("last_section_number=%d\n",last_section_number); |
|---|
| 2813 | if (last_section_number != 0x00) |
|---|
| 2814 | { |
|---|
| 2815 | DST_Printf("ETT: last_section_number != 0x00\n"); |
|---|
| 2816 | } |
|---|
| 2817 | int protocol_version = p[5]; |
|---|
| 2818 | //DST_Printf("protocol_version=%d\n",protocol_version); |
|---|
| 2819 | //T(); |
|---|
| 2820 | if (protocol_version > 0/*PSIP_PROTOCOL_VERSION*/) |
|---|
| 2821 | { |
|---|
| 2822 | memChainDestroy(memId); |
|---|
| 2823 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 2824 | } |
|---|
| 2825 | |
|---|
| 2826 | ettSectPtr->ETM_id = p[6]*0x1000000 + p[7]*0x10000 + p[8]*0x100 + p[9]; |
|---|
| 2827 | //DST_Printf("ettSectPtr->ETM_id=%d\n",ettSectPtr->ETM_id); |
|---|
| 2828 | int count_i = ettSectPtr->extended_text_message_length = section_length - 14; |
|---|
| 2829 | ettSectPtr->extended_text_message = (DS_U8 *)memChainAlloc(memId, count_i); |
|---|
| 2830 | if (ettSectPtr->extended_text_message == 0) |
|---|
| 2831 | { |
|---|
| 2832 | memChainDestroy(memId); |
|---|
| 2833 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2834 | } |
|---|
| 2835 | for (int i=0; i<count_i; i++) |
|---|
| 2836 | { |
|---|
| 2837 | ettSectPtr->extended_text_message[i] = p[10+i]; |
|---|
| 2838 | } |
|---|
| 2839 | |
|---|
| 2840 | /* parsing complete */ |
|---|
| 2841 | *(((memId_t *)ettSectPtr)-1) = memId; |
|---|
| 2842 | memId = 0; /* so memChain not deleted */ |
|---|
| 2843 | |
|---|
| 2844 | if (memId) { |
|---|
| 2845 | /* delete the cvctSection memory */ |
|---|
| 2846 | memChainDestroy(memId); |
|---|
| 2847 | } |
|---|
| 2848 | |
|---|
| 2849 | *ettSectionPtr = ettSectPtr; |
|---|
| 2850 | return 0; |
|---|
| 2851 | } |
|---|
| 2852 | |
|---|
| 2853 | /*============================================================================== |
|---|
| 2854 | DHL_RESULT DHL_PSI_ParseCVCTSection (DS_U8 *section, cvctSectionPtr_t *cvctSectionPtr) |
|---|
| 2855 | |
|---|
| 2856 | *section: Pointer to the first byte of the section. |
|---|
| 2857 | *cvctSectionPtr: Return pointer to a parsed CVCT section. |
|---|
| 2858 | |
|---|
| 2859 | Parses an CVCT section and returns the decoded section via the provided |
|---|
| 2860 | handle. |
|---|
| 2861 | ==============================================================================*/ |
|---|
| 2862 | static int DHL_PSI_ParseCVCTSection (DS_U8 *section, cvctSectionPtr_t *cvctSectionPtr) |
|---|
| 2863 | { |
|---|
| 2864 | // cvctSectionPtr_t cvctSectPtr = 0; |
|---|
| 2865 | // memChainSetup_t memSetup = {MEM_LIMIT,0,0}; |
|---|
| 2866 | // DS_U16 section_length; |
|---|
| 2867 | // DS_U8 protocol_version; |
|---|
| 2868 | // |
|---|
| 2869 | // bitBufferPtr_t bits = 0; |
|---|
| 2870 | // DS_S32 count_i,count_j; |
|---|
| 2871 | // DS_S32 i,j; |
|---|
| 2872 | // DHL_RESULT err = DHL_OK; |
|---|
| 2873 | |
|---|
| 2874 | if (get_section_syntax_indicator(section) == 0) |
|---|
| 2875 | { |
|---|
| 2876 | DST_Printf("CVCT: section_syntax_indicator not set\n"); |
|---|
| 2877 | } |
|---|
| 2878 | if (get_private_indicator(section) == 0) |
|---|
| 2879 | { |
|---|
| 2880 | DST_Printf("CVCT: private_indicator not set\n"); |
|---|
| 2881 | } |
|---|
| 2882 | |
|---|
| 2883 | DS_U16 section_length = get_section_length(section); |
|---|
| 2884 | if (section_length > 1021) |
|---|
| 2885 | { |
|---|
| 2886 | DST_Printf("CVCT: section_length=%d\n",section_length); |
|---|
| 2887 | return DHL_FAIL_INVALID_PARAM; |
|---|
| 2888 | } |
|---|
| 2889 | memId_t memId = 0; |
|---|
| 2890 | if (memChainCreate(&memId)) /* create the memChain */ |
|---|
| 2891 | { |
|---|
| 2892 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2893 | } |
|---|
| 2894 | /* allocate memory for cvctSection */ |
|---|
| 2895 | cvctSectionPtr_t cvctSectPtr = (cvctSectionPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(cvctSection_t)+sizeof(memId_t))) + 1); |
|---|
| 2896 | if (cvctSectPtr == 0) |
|---|
| 2897 | { |
|---|
| 2898 | memChainDestroy(memId); |
|---|
| 2899 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2900 | } |
|---|
| 2901 | DS_U8 *p = section + 3; |
|---|
| 2902 | /* parse section */ |
|---|
| 2903 | cvctSectPtr->transport_stream_id = p[0] * 0x100 + p[1]; |
|---|
| 2904 | //bitBufferSkipBits(bits,2); /* reserved */ |
|---|
| 2905 | cvctSectPtr->version_number = (p[2] >> 1) & 0x1F; |
|---|
| 2906 | cvctSectPtr->current_next_indicator = p[2] & 0x01; |
|---|
| 2907 | cvctSectPtr->section_number = p[3]; |
|---|
| 2908 | cvctSectPtr->last_section_number = p[4]; |
|---|
| 2909 | |
|---|
| 2910 | DS_U8 protocol_version = p[5]; |
|---|
| 2911 | if (protocol_version > 0 /*PSIP_PROTOCOL_VERSION*/) |
|---|
| 2912 | { |
|---|
| 2913 | memChainDestroy(memId); |
|---|
| 2914 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 2915 | } |
|---|
| 2916 | |
|---|
| 2917 | int count_i = cvctSectPtr->num_channels_in_section = p[6]; |
|---|
| 2918 | cvctSectPtr->channel = (cvctChannelPtr_t)memChainAlloc(memId,count_i*sizeof(cvctChannel_t)); |
|---|
| 2919 | if (cvctSectPtr->channel == 0) |
|---|
| 2920 | { |
|---|
| 2921 | memChainDestroy(memId); |
|---|
| 2922 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2923 | } |
|---|
| 2924 | p += 7; |
|---|
| 2925 | int nPos = 0; |
|---|
| 2926 | for (int i=0; i<count_i; i++) |
|---|
| 2927 | { |
|---|
| 2928 | for (int j=0; j<7; j++) |
|---|
| 2929 | { |
|---|
| 2930 | cvctSectPtr->channel[i].short_name[j] = p[nPos] * 0x100 + p[nPos+1]; |
|---|
| 2931 | nPos+=2; |
|---|
| 2932 | } |
|---|
| 2933 | //bitBufferSkipBits(bits,4); /* reserved */ |
|---|
| 2934 | cvctSectPtr->channel[i].major_channel_number = ((p[nPos] >> 4) & 0x0F) * 0x40 + ((p[nPos+1] >> 2) & 0x3F); |
|---|
| 2935 | #ifdef ENABLE_SYNTAX_CHECKING |
|---|
| 2936 | if (cvctSectPtr->channel[i].major_channel_number < CABL_MAJOR_CHAN_MIN || cvctSectPtr->channel[i].major_channel_number > CABL_MAJOR_CHAN_MAX) { |
|---|
| 2937 | DST_Printf("CVCT: major_channel_number=%d\n",cvctSectPtr->channel[i].major_channel_number); |
|---|
| 2938 | err = DHL_FAIL_INVALID_PARAM; |
|---|
| 2939 | goto ParseExit; |
|---|
| 2940 | } |
|---|
| 2941 | #endif /* ENABLE_SYNTAX_CHECKING */ |
|---|
| 2942 | cvctSectPtr->channel[i].minor_channel_number = (p[nPos+1] & 0x03) * 0x100 + p[nPos+2]; |
|---|
| 2943 | #ifdef ENABLE_SYNTAX_CHECKING |
|---|
| 2944 | if (cvctSectPtr->channel[i].minor_channel_number > CABL_MINOR_CHAN_MAX) { |
|---|
| 2945 | DST_Printf("CVCT: minor_channel_number=%d\n",cvctSectPtr->channel[i].minor_channel_number); |
|---|
| 2946 | err = DHL_FAIL_INVALID_PARAM; |
|---|
| 2947 | goto ParseExit; |
|---|
| 2948 | } |
|---|
| 2949 | #endif /* ENABLE_SYNTAX_CHECKING */ |
|---|
| 2950 | nPos+=3; |
|---|
| 2951 | cvctSectPtr->channel[i].modulation_mode = (modulation_mode_k)p[nPos++]; |
|---|
| 2952 | cvctSectPtr->channel[i].carrier_frequency = p[nPos] * 0x1000000 + p[nPos+1] * 0x10000 + p[nPos+2] * 0x100 + p[nPos+3]; |
|---|
| 2953 | nPos+=4; |
|---|
| 2954 | cvctSectPtr->channel[i].channel_TSID = p[nPos] * 0x100 + p[nPos+1]; |
|---|
| 2955 | nPos+=2; |
|---|
| 2956 | cvctSectPtr->channel[i].program_number = p[nPos] * 0x100 + p[nPos+1]; |
|---|
| 2957 | nPos+=2; |
|---|
| 2958 | cvctSectPtr->channel[i].ETM_location = (ETM_location_k)((p[nPos] >> 6) & 0x03); |
|---|
| 2959 | cvctSectPtr->channel[i].access_controlled = ((p[nPos] >> 5) & 0x01); |
|---|
| 2960 | cvctSectPtr->channel[i].hidden = ((p[nPos] >> 4) & 0x01); |
|---|
| 2961 | cvctSectPtr->channel[i].path_select = (path_select_k) ((p[nPos] >> 3) & 0x01); |
|---|
| 2962 | cvctSectPtr->channel[i].out_of_band = ((p[nPos] >> 2) & 0x01); |
|---|
| 2963 | cvctSectPtr->channel[i].show_guide = ((p[nPos] >> 1) & 0x01); |
|---|
| 2964 | //bitBufferSkipBits(bits,3); /* reserved */ |
|---|
| 2965 | nPos++; |
|---|
| 2966 | cvctSectPtr->channel[i].service_type = (service_type_k)(p[nPos++] & 0x3F); |
|---|
| 2967 | cvctSectPtr->channel[i].source_id = p[nPos] * 0x100 + p[nPos+1]; |
|---|
| 2968 | nPos+=2; |
|---|
| 2969 | //bitBufferSkipBits(bits,6); /* reserved */ |
|---|
| 2970 | int count_j = cvctSectPtr->channel[i].descriptor_length = (p[nPos]&0x03) * 0x100 + p[nPos+1]; |
|---|
| 2971 | nPos+=2; |
|---|
| 2972 | cvctSectPtr->channel[i].descriptors = (DS_U8 *)memChainAlloc(memId,count_j); |
|---|
| 2973 | if (cvctSectPtr->channel[i].descriptors == 0) |
|---|
| 2974 | { |
|---|
| 2975 | memChainDestroy(memId); |
|---|
| 2976 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2977 | } |
|---|
| 2978 | for (int j=0; j<count_j; j++) { |
|---|
| 2979 | cvctSectPtr->channel[i].descriptors[j] = p[nPos++]; |
|---|
| 2980 | } |
|---|
| 2981 | } |
|---|
| 2982 | //bitBufferSkipBits(bits,6); /* reserved */ |
|---|
| 2983 | cvctSectPtr->additional_descriptors = (DS_U8 *)memChainAlloc(memId,count_i); |
|---|
| 2984 | if (cvctSectPtr->additional_descriptors == 0) |
|---|
| 2985 | { |
|---|
| 2986 | memChainDestroy(memId); |
|---|
| 2987 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 2988 | } |
|---|
| 2989 | |
|---|
| 2990 | for (int i=0; i<count_i; i++) { |
|---|
| 2991 | cvctSectPtr->additional_descriptors[i] = p[nPos++]; |
|---|
| 2992 | } |
|---|
| 2993 | |
|---|
| 2994 | /* parsing complete */ |
|---|
| 2995 | *(((memId_t *)cvctSectPtr)-1) = memId; |
|---|
| 2996 | memId = 0; /* so memChain not deleted */ |
|---|
| 2997 | |
|---|
| 2998 | //ParseExit: |
|---|
| 2999 | |
|---|
| 3000 | if (memId) { |
|---|
| 3001 | /* delete the cvctSection memory */ |
|---|
| 3002 | memChainDestroy(memId); |
|---|
| 3003 | } |
|---|
| 3004 | |
|---|
| 3005 | *cvctSectionPtr = cvctSectPtr; |
|---|
| 3006 | return 0; |
|---|
| 3007 | } |
|---|
| 3008 | |
|---|
| 3009 | /*============================================================================== |
|---|
| 3010 | DHL_RESULT DHL_PSI_ParseCVCT (DS_U8 **sectionArr, cvctPtr_t *cvctPtr) |
|---|
| 3011 | |
|---|
| 3012 | **sectionArr: Array of pointers to all CVCT sections. |
|---|
| 3013 | *cvctPtr: Returned pointer to the parsed CVCT. |
|---|
| 3014 | |
|---|
| 3015 | Parses an CVCT and returns the parsed table via the return pointer. |
|---|
| 3016 | ==============================================================================*/ |
|---|
| 3017 | int DHL_PSI_ParseCVCT (DS_U8 **sectionArr, cvctPtr_t *cvctPtr) |
|---|
| 3018 | { |
|---|
| 3019 | // DS_U8 numSections; |
|---|
| 3020 | // DS_U16 numChannels; |
|---|
| 3021 | // |
|---|
| 3022 | // DS_U16 i,j; |
|---|
| 3023 | // memChainSetup_t memSetup = {MEM_LIMIT_BIG,0,0}; |
|---|
| 3024 | // memId_t memId = 0; |
|---|
| 3025 | // DHL_RESULT err; |
|---|
| 3026 | |
|---|
| 3027 | |
|---|
| 3028 | if (sectionArr == 0 || (cvctPtr == 0)) |
|---|
| 3029 | { |
|---|
| 3030 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 3031 | } |
|---|
| 3032 | |
|---|
| 3033 | if (sectionArr[0] == 0) |
|---|
| 3034 | { |
|---|
| 3035 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 3036 | } |
|---|
| 3037 | DS_U8 numSections = get_last_section_number(sectionArr[0]) + 1; |
|---|
| 3038 | |
|---|
| 3039 | /* now verify all other sections are present */ |
|---|
| 3040 | for (int i=1; i<numSections; i++) |
|---|
| 3041 | { |
|---|
| 3042 | if (sectionArr[i] == 0) |
|---|
| 3043 | { |
|---|
| 3044 | DST_Printf("CVCT : invalid section found.\r\n"); |
|---|
| 3045 | return (DHL_FAIL_NULL_POINTER); |
|---|
| 3046 | } |
|---|
| 3047 | } |
|---|
| 3048 | |
|---|
| 3049 | /*check protocol version of each section.*/ |
|---|
| 3050 | for (int i=0; i< numSections ; i++ ) |
|---|
| 3051 | { |
|---|
| 3052 | if(sectionArr[i][8] != 0/*PSIP_PROTOCOL_VERSION*/) |
|---|
| 3053 | { |
|---|
| 3054 | DST_Printf("CVCT : invalid Protocol Version.\r\n"); |
|---|
| 3055 | return DHL_FAIL_INVALID_VERSION; |
|---|
| 3056 | } |
|---|
| 3057 | } |
|---|
| 3058 | |
|---|
| 3059 | memId_t memId = (memId_t)0; |
|---|
| 3060 | if (memChainCreate(&memId)) /* create the memChain */ |
|---|
| 3061 | { |
|---|
| 3062 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 3063 | } |
|---|
| 3064 | /* allocate memory for cvct */ |
|---|
| 3065 | *cvctPtr = (cvctPtr_t)((memId_t *)(memChainAlloc(memId,sizeof(cvct_t)+sizeof(memId_t))) + 1); |
|---|
| 3066 | if (*cvctPtr == 0) |
|---|
| 3067 | { |
|---|
| 3068 | memChainDestroy(memId); |
|---|
| 3069 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 3070 | } |
|---|
| 3071 | |
|---|
| 3072 | /* Get the total number of channels in all sections */ |
|---|
| 3073 | DS_U16 numChannels = 0; |
|---|
| 3074 | for (int i=0; i<numSections; i++) |
|---|
| 3075 | { |
|---|
| 3076 | numChannels += sectionArr[i][9]; |
|---|
| 3077 | } |
|---|
| 3078 | |
|---|
| 3079 | (*cvctPtr)->numChannels = numChannels; |
|---|
| 3080 | |
|---|
| 3081 | /* allocate space in cvct for channels */ |
|---|
| 3082 | (*cvctPtr)->channel = (cvctChannelPtr_t)memChainAlloc(memId,numChannels*sizeof(cvctChannel_t)); |
|---|
| 3083 | if ((*cvctPtr)->channel == 0) |
|---|
| 3084 | { |
|---|
| 3085 | memChainDestroy(memId); |
|---|
| 3086 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 3087 | } |
|---|
| 3088 | |
|---|
| 3089 | /* Parse each section and copy channels */ |
|---|
| 3090 | numChannels = 0; |
|---|
| 3091 | for (int i=0; i<numSections; i++) { |
|---|
| 3092 | /* Parse the section */ |
|---|
| 3093 | cvctSectionPtr_t cvctSectPtr = 0; |
|---|
| 3094 | int err = DHL_PSI_ParseCVCTSection(sectionArr[i], &cvctSectPtr); |
|---|
| 3095 | if (err != 0) |
|---|
| 3096 | { |
|---|
| 3097 | memChainDestroy(memId); |
|---|
| 3098 | return err; |
|---|
| 3099 | } |
|---|
| 3100 | |
|---|
| 3101 | if (i == 0) { |
|---|
| 3102 | /* duplicate fields copied once */ |
|---|
| 3103 | (*cvctPtr)->transport_stream_id = cvctSectPtr->transport_stream_id; |
|---|
| 3104 | (*cvctPtr)->version_number = cvctSectPtr->version_number; |
|---|
| 3105 | |
|---|
| 3106 | /* allocate space for descriptors and copy (if any) */ |
|---|
| 3107 | if (cvctSectPtr->additional_descriptor_length > 0) |
|---|
| 3108 | { |
|---|
| 3109 | (*cvctPtr)->additional_descriptors = (DS_U8 *)memChainAlloc(memId,cvctSectPtr->additional_descriptor_length*sizeof(DS_U8)); |
|---|
| 3110 | if ((*cvctPtr)->additional_descriptors == 0) |
|---|
| 3111 | { |
|---|
| 3112 | DHL_PSI_FreeMpegSection(cvctSectPtr); |
|---|
| 3113 | memChainDestroy(memId); |
|---|
| 3114 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 3115 | } |
|---|
| 3116 | memcpy((*cvctPtr)->additional_descriptors,cvctSectPtr->additional_descriptors, (*cvctPtr)->additional_descriptor_length); |
|---|
| 3117 | } |
|---|
| 3118 | } |
|---|
| 3119 | for (int j=0; j<cvctSectPtr->num_channels_in_section; j++) |
|---|
| 3120 | { |
|---|
| 3121 | memcpy(&((*cvctPtr)->channel[numChannels]), &(cvctSectPtr->channel[j]), sizeof(cvctChannel_t)); |
|---|
| 3122 | |
|---|
| 3123 | /* allocate space for descriptors and copy (if any) */ |
|---|
| 3124 | if (cvctSectPtr->channel[j].descriptor_length > 0) |
|---|
| 3125 | { |
|---|
| 3126 | (*cvctPtr)->channel[numChannels].descriptors = (DS_U8 *)memChainAlloc(memId,cvctSectPtr->channel[j].descriptor_length*sizeof(DS_U8)); |
|---|
| 3127 | if ((*cvctPtr)->channel[numChannels].descriptors == 0) |
|---|
| 3128 | { |
|---|
| 3129 | DHL_PSI_FreeMpegSection(cvctSectPtr); |
|---|
| 3130 | memChainDestroy(memId); |
|---|
| 3131 | return DHL_FAIL_OUT_OF_RESOURCE; |
|---|
| 3132 | } |
|---|
| 3133 | |
|---|
| 3134 | /*memcpy((*cvctPtr)->channel[numChannels].descriptors,cvctSectPtr->channel[j].descriptors, (*cvctPtr)->channel[j].descriptor_length);*/ |
|---|
| 3135 | /*cafrii 030910, bugfix*/ |
|---|
| 3136 | memcpy((*cvctPtr)->channel[numChannels].descriptors,cvctSectPtr->channel[j].descriptors, (*cvctPtr)->channel[numChannels].descriptor_length); |
|---|
| 3137 | } |
|---|
| 3138 | numChannels++; |
|---|
| 3139 | } |
|---|
| 3140 | DHL_PSI_FreeMpegSection(cvctSectPtr); |
|---|
| 3141 | } |
|---|
| 3142 | |
|---|
| 3143 | /* parsing complete */ |
|---|
| 3144 | *(((memId_t *)(*cvctPtr))-1) = memId; |
|---|
| 3145 | memId = 0; /* so memChain not deleted */ |
|---|
| 3146 | |
|---|
| 3147 | //ParseExit: |
|---|
| 3148 | if (memId) { |
|---|
| 3149 | /* delete the cvct memory */ |
|---|
| 3150 | memChainDestroy(memId); |
|---|
| 3151 | } |
|---|
| 3152 | return 0; |
|---|
| 3153 | } |
|---|