| 1 | /*************************************************************************** |
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| 2 | * Copyright (c) 2009, Broadcom Corporation |
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| 3 | * All Rights Reserved |
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| 4 | * Confidential Property of Broadcom Corporation |
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| 5 | * |
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| 6 | * THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE |
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| 7 | * AGREEMENT BETWEEN THE USER AND BROADCOM. YOU HAVE NO RIGHT TO USE OR |
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| 8 | * EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT. |
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| 9 | * |
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| 10 | * $brcm_Workfile: $ |
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| 11 | * $brcm_Revision: $ |
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| 12 | * $brcm_Date: $ |
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| 13 | * |
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| 14 | * Module Description: |
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| 15 | * |
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| 16 | * Revision History: |
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| 17 | * |
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| 18 | * $brcm_Log: $ |
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| 19 | * |
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| 20 | ***************************************************************************/ |
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| 21 | #include "scte_27.h" |
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| 22 | #include "bstd.h" |
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| 23 | #include "getbits.h" |
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| 24 | #include "bapp.h" |
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| 25 | #include "gist.h" |
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| 26 | #include "bxpt_pcr.h" |
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| 27 | #include "bapp_task_priorities.h" |
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| 28 | #include "bapp_palette.h" |
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| 29 | #include "bgfx_types.h" |
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| 30 | |
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| 31 | BDBG_MODULE(scte_27); |
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| 32 | |
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| 33 | /* function prototype */ |
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| 34 | void scte_27_handler(void *data); |
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| 35 | static bool scte_27_render_subtitle(pscte_27_handle pscte_27, scte_27_data *imme_pdata); |
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| 36 | |
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| 37 | //#define SUBTITLE_DRAW_TEST 1 |
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| 38 | |
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| 39 | #define SCTE_27_EVENT_TIME 25 /* 10 ms */ |
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| 40 | #define SCTE_27_MUTEX_TIME 100 |
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| 41 | |
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| 42 | #define BITMAP_BUFFER_SIZE 25920 /* (720 * 576 / 8 / 2) half of screen should be enough */ |
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| 43 | |
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| 44 | static scte_27_handle s_scte_27; |
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| 45 | static subtitle_message scte_27_msg[MAX_SUBTITLE_MESSAGE]; |
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| 46 | static scte_27_data scte_27_data_array[MAX_SUBTITLE_MESSAGE]; |
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| 47 | |
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| 48 | #define CLUT_MAX_ENTRIES 16 |
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| 49 | #define CLUT_BG_INDEX 12 |
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| 50 | #define CLUT_FG_INDEX 13 |
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| 51 | #define CLUT_OUTLINE_INDEX 14 |
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| 52 | #define CLUT_FRAME_INDEX 15 |
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| 53 | |
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| 54 | #define abs(n) __builtin_abs ((n)) |
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| 55 | |
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| 56 | static uint32_t clut_color_entries[CLUT_MAX_ENTRIES] = { 0 }; |
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| 57 | /* display standard */ |
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| 58 | static uint8_t display_standard_array[4] = { |
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| 59 | 30, /* DS_720_480_30 */ |
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| 60 | 25, /* DS_720_576_25 */ |
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| 61 | 60, /* DS_1280_720_60 */ |
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| 62 | 60 /* DS_1920_1080_60 */ |
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| 63 | }; |
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| 64 | |
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| 65 | #ifndef SCTE_ASSERT |
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| 66 | #define SCTE_ASSERT(expr) { \ |
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| 67 | if (!expr) \ |
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| 68 | printf("%s failed at %s:%d\n",#expr, __FILE__, __LINE__); \ |
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| 69 | } |
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| 70 | #endif |
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| 71 | |
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| 72 | #define insert_list(list, data) \ |
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| 73 | flags = bos_enter_critical(); \ |
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| 74 | inslt(&list, data); \ |
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| 75 | bos_exit_critical(flags) |
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| 76 | |
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| 77 | #define insert_list_head(list, data)\ |
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| 78 | flags = bos_enter_critical(); \ |
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| 79 | inslh(&list, data); \ |
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| 80 | bos_exit_critical(flags) |
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| 81 | |
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| 82 | #define remove_list(list) \ |
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| 83 | flags = bos_enter_critical(); \ |
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| 84 | pdata = remlh(&list); \ |
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| 85 | bos_exit_critical(flags) |
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| 86 | |
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| 87 | /* |
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| 88 | * compare given PTS against currrent stc clock |
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| 89 | * |
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| 90 | * Parameters: |
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| 91 | * pscte_27 pointer to scte_27 handle |
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| 92 | * Tp pts for in-cue |
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| 93 | * |
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| 94 | * Returns: |
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| 95 | * 0 if (Tp = Tc) |
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| 96 | * < 0 past |
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| 97 | * > 0 future |
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| 98 | */ |
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| 99 | static int scte_27_pts_stc_diff(pscte_27_handle pscte_27, uint32_t Tp) |
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| 100 | { |
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| 101 | BXPT_PCR_Handle hPcr; |
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| 102 | uint32_t Tc = 0, lo; |
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| 103 | |
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| 104 | hPcr = GetDPCR(); |
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| 105 | if (NULL == hPcr) { |
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| 106 | return 0; |
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| 107 | } |
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| 108 | BXPT_PCR_GetStc(hPcr, &Tc, &lo); |
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| 109 | Tc += PCRS_PER_MSEC * 800; |
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| 110 | if (Tp == Tc) |
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| 111 | return 0; |
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| 112 | |
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| 113 | /* 4.11 */ |
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| 114 | if (Tp < Tc) |
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| 115 | Tp = (uint32_t)Tp + 0xffffffff; /* 0x100000000 */ |
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| 116 | |
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| 117 | if ((Tp - Tc) >= 0x80000000) { |
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| 118 | return -1; /* past */ |
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| 119 | } |
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| 120 | else { |
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| 121 | if (Tp >= Tc) { |
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| 122 | if ((Tp - Tc) <= (PCRS_PER_MSEC * (PCRS_PER_MSEC + 5))) |
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| 123 | return 0; |
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| 124 | } |
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| 125 | return 1; /* future */ |
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| 126 | } |
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| 127 | } |
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| 128 | |
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| 129 | /* |
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| 130 | * This function is used to reset given list (which should be discard) |
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| 131 | * |
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| 132 | * Parameters: |
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| 133 | * pscte_27 pointer to scte_27 handle |
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| 134 | * which which list. |
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| 135 | * |
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| 136 | * Returns: |
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| 137 | * 1 if success |
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| 138 | * 0 otherwise |
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| 139 | */ |
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| 140 | static bool scte_27_reset_list(pscte_27_handle pscte_27, int which) |
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| 141 | { |
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| 142 | unsigned int flags; |
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| 143 | scte_27_data *pdata = NULL; |
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| 144 | |
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| 145 | BDBG_MSG(("%s: enter", __func__)); |
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| 146 | |
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| 147 | #ifdef DEBUG |
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| 148 | if (NULL == pscte_27) { |
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| 149 | BDBG_WRN(("%s: null pointer", __func__)); |
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| 150 | return false; |
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| 151 | } |
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| 152 | #endif |
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| 153 | |
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| 154 | if (SC_RENDER == which) { |
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| 155 | while (pscte_27->render_list.count > 0) { |
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| 156 | remove_list(pscte_27->render_list); |
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| 157 | if (pdata) { |
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| 158 | if (pdata->msg->bitmap_data) { |
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| 159 | free(pdata->msg->bitmap_data); |
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| 160 | pdata->msg->bitmap_data = NULL; |
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| 161 | pdata->msg->bitmap_size = 0; |
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| 162 | } |
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| 163 | /* put it back to free list */ |
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| 164 | insert_list(pscte_27->free_list, pdata); |
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| 165 | } |
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| 166 | } |
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| 167 | } |
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| 168 | if (SC_CLEAR == which) { |
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| 169 | while (pscte_27->clear_list.count > 0) { |
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| 170 | remove_list(pscte_27->clear_list); |
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| 171 | if (pdata) { |
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| 172 | /* put it back to free list */ |
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| 173 | insert_list(pscte_27->free_list, pdata); |
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| 174 | } |
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| 175 | } |
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| 176 | } |
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| 177 | |
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| 178 | BDBG_MSG(("%s: leave", __func__)); |
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| 179 | return true; |
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| 180 | } |
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| 181 | |
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| 182 | /* |
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| 183 | * This function is used to reset scte 27. |
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| 184 | * |
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| 185 | * Parameters: |
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| 186 | * pscte_27 pointer to scte_27 handle |
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| 187 | * |
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| 188 | * Returns: |
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| 189 | * 1 if success |
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| 190 | * 0 otherwise |
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| 191 | */ |
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| 192 | bool scte_27_reset(pscte_27_handle pscte_27) |
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| 193 | { |
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| 194 | BDBG_MSG(("%s: enter", __func__)); |
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| 195 | |
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| 196 | #ifdef DEBUG |
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| 197 | if (NULL == pscte_27) { |
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| 198 | BDBG_WRN(("%s: null pointer", __func__)); |
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| 199 | return false; |
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| 200 | } |
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| 201 | #endif |
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| 202 | |
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| 203 | scte_27_reset_list(pscte_27, SC_RENDER); |
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| 204 | scte_27_reset_list(pscte_27, SC_CLEAR); |
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| 205 | |
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| 206 | /* free segmented data buffer if any */ |
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| 207 | if (pscte_27->segment_data) { |
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| 208 | free(pscte_27->segment_data); |
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| 209 | pscte_27->segment_data = NULL; |
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| 210 | pscte_27->segment_data_size = 0; |
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| 211 | } |
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| 212 | pscte_27->pdata = NULL; |
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| 213 | pscte_27->segmented = false; |
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| 214 | |
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| 215 | BDBG_MSG(("%s: leave", __func__)); |
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| 216 | return true; |
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| 217 | } |
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| 218 | |
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| 219 | /* |
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| 220 | * This function is used to initialize scte 27 object |
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| 221 | * |
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| 222 | * Parameters: |
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| 223 | * v_app pointer to application structure |
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| 224 | * |
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| 225 | * Returns: |
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| 226 | * pointer to scte_27_handle if success |
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| 227 | * NULL otherwise |
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| 228 | */ |
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| 229 | pscte_27_handle scte_27_init(void *v_app) |
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| 230 | { |
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| 231 | pscte_27_handle pscte_27 = &s_scte_27; |
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| 232 | unsigned int *palette, palette_size; /* palette pointer */ |
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| 233 | b_task_params params; |
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| 234 | int i; |
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| 235 | scte_27_data *pdata = NULL; |
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| 236 | |
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| 237 | BDBG_MSG(("%s: enter", __func__)); |
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| 238 | #ifdef DEBUG |
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| 239 | if (!p_app) { |
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| 240 | BDBG_ERR(("%s: null ptr", __func__)); |
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| 241 | return NULL; |
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| 242 | } |
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| 243 | #endif |
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| 244 | |
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| 245 | memset(pscte_27, 0, sizeof(scte_27_handle)); |
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| 246 | /* keep application pointer to later use */ |
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| 247 | pscte_27->v_app = v_app; |
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| 248 | |
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| 249 | SCTE_ASSERT(b_ok == bos_create_mutex(&pscte_27->mutex)); |
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| 250 | pscte_27->bitmap = malloc(BITMAP_BUFFER_SIZE); |
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| 251 | SCTE_ASSERT(pscte_27->bitmap); |
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| 252 | SCTE_ASSERT(b_ok == bos_create_queue(&pscte_27->queue, pscte_27->event, MAX_SUBTITLE_EVENTS)); |
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| 253 | |
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| 254 | bapp_palette_get(ePALETTE_APP,(unsigned int **)&palette, &palette_size); |
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| 255 | |
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| 256 | /* last 4 in CLUT entried are used for subtitle, but we just set the values for all entries */ |
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| 257 | for (i = 0; i <= CLUT_FRAME_INDEX; i++) { |
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| 258 | clut_color_entries[i] = *(palette + i); |
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| 259 | } |
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| 260 | /* initialize all the list */ |
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| 261 | initl(&pscte_27->free_list); |
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| 262 | initl(&pscte_27->render_list); |
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| 263 | initl(&pscte_27->clear_list); |
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| 264 | |
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| 265 | /* free list */ |
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| 266 | for (i = 0; i < MAX_SUBTITLE_MESSAGE; i++) { |
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| 267 | pdata = &scte_27_data_array[i]; |
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| 268 | pdata->msg = &scte_27_msg[i]; |
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| 269 | inslt(&pscte_27->free_list, pdata); |
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| 270 | } |
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| 271 | scte_27_reset(pscte_27); |
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| 272 | |
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| 273 | pscte_27->cmd_array[SC_RENDER] = SC_RENDER; |
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| 274 | pscte_27->cmd_array[SC_CLEAR] = SC_CLEAR; |
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| 275 | |
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| 276 | params.priority = SCTE_27_PRIORITY; |
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| 277 | params.stack = pscte_27->stack; |
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| 278 | params.name = "scte_27_task"; |
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| 279 | params.stack_size = SCTE_27_STK_SIZE; |
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| 280 | /* enable scte 27 task */ |
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| 281 | bos_start_task(&pscte_27->task, ¶ms, scte_27_handler, pscte_27); |
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| 282 | |
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| 283 | BDBG_MSG(("%s: leave", __func__)); |
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| 284 | return pscte_27; |
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| 285 | } |
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| 286 | |
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| 287 | /* |
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| 288 | * This function is used to de-initialize scte 27 object initialized before |
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| 289 | * |
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| 290 | * Parameters: |
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| 291 | * pointer to scte 27 handle |
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| 292 | * |
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| 293 | * Returns: |
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| 294 | * NONE |
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| 295 | */ |
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| 296 | void scte_27_deinit(pscte_27_handle pscte_27) |
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| 297 | { |
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| 298 | BDBG_MSG(("%s: enter", __func__)); |
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| 299 | |
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| 300 | if (!pscte_27) { |
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| 301 | BDBG_MSG(("%s: null pointer", __func__)); |
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| 302 | return; |
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| 303 | } |
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| 304 | if (pscte_27->bitmap) |
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| 305 | free(pscte_27->bitmap); |
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| 306 | scte_27_reset(pscte_27); |
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| 307 | if (&pscte_27->mutex) |
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| 308 | bos_delete_mutex(&pscte_27->mutex); |
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| 309 | if (pscte_27->stack) |
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| 310 | free(pscte_27->stack); |
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| 311 | //free(pscte_27); |
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| 312 | BDBG_MSG(("%s: leave", __func__)); |
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| 313 | } |
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| 314 | |
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| 315 | /* |
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| 316 | * enable/disable SCTE 27 subtitle |
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| 317 | * |
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| 318 | * Parameters: |
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| 319 | * pscte_27 pointer to scte_27 handle |
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| 320 | * enable enable/disable SCTE 27 module |
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| 321 | * |
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| 322 | * Returns: |
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| 323 | * NONE |
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| 324 | */ |
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| 325 | void scte_27_enable(pscte_27_handle pscte_27, int enable) |
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| 326 | { |
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| 327 | if (bos_acquire_mutex(&pscte_27->mutex, 0) != b_ok) { |
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| 328 | BDBG_ERR(("%s bos_acquire_mutex failed (enable = %d)\n",__func__,enable)); |
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| 329 | return; |
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| 330 | } |
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| 331 | |
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| 332 | if (pscte_27->enabled == enable) { |
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| 333 | bos_release_mutex(&pscte_27->mutex); |
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| 334 | return; |
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| 335 | } |
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| 336 | pscte_27->enabled = enable; |
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| 337 | bos_release_mutex(&pscte_27->mutex); |
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| 338 | } |
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| 339 | |
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| 340 | /* |
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| 341 | * SCTE 27 subtitle message parser |
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| 342 | * |
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| 343 | * Parameters: |
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| 344 | * pscte_27 pointer to scte_27 handle |
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| 345 | * data pointer to scte_27 message data buffer |
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| 346 | * length data bufer length |
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| 347 | * hdr pointer to header that will hold the message header parsed |
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| 348 | * |
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| 349 | * Returns: |
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| 350 | * true if parse the data correctly |
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| 351 | * false if anything is wrong |
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| 352 | */ |
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| 353 | |
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| 354 | bool scte_27_parse_subtitle(pscte_27_handle pscte_27, unsigned char *data, int length, scte_27_data *pdata) |
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| 355 | { |
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| 356 | struct bit_state_t bits, *bs; |
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| 357 | subtitle_message *hdr; |
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| 358 | uint32_t flags; |
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| 359 | BXPT_PCR_Handle hPcr = NULL; |
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| 360 | uint32_t hi, lo; |
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| 361 | |
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| 362 | bs = &bits; |
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| 363 | bits.data = data; |
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| 364 | bits.bindex = 0; |
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| 365 | |
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| 366 | #ifdef DEBUG |
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| 367 | if (!pscte_27 || !data || (length < 10) || !pdata) { |
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| 368 | BDBG_WRN(("%s: null ptr or zero data", __func__)); |
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| 369 | return false; |
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| 370 | } |
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| 371 | #endif |
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| 372 | hdr = pdata->msg; |
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| 373 | |
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| 374 | hdr->table_ID = get_bits(8, bs); |
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| 375 | if (SUBTITLE_SECTION_ID != hdr->table_ID) { |
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| 376 | BDBG_WRN(("%s: invalid subtitle message", __func__)); |
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| 377 | return false; |
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| 378 | } |
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| 379 | |
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| 380 | get_bits(4, bs); /* skip zero and ISO reserved bits */ |
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| 381 | hdr->section_length = get_bits(12, bs); |
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| 382 | if (hdr->section_length > (length - 3)) { |
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| 383 | BDBG_WRN(("%s: section_length out of range", __func__)); |
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| 384 | return false; |
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| 385 | } |
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| 386 | |
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| 387 | get_bits(1, bs); |
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| 388 | hdr->segmentation_overlay_included = get_bits(1, bs); |
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| 389 | /* protocol version */ |
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| 390 | if (0 != get_bits(6, bs)) { |
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| 391 | BDBG_WRN(("%s: protocol version not zero", __func__)); |
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| 392 | return false; |
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| 393 | } |
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| 394 | |
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| 395 | if (hdr->segmentation_overlay_included) { |
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| 396 | hdr->table_extension = get_bits(16, bs); |
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| 397 | hdr->last_segment_number = get_bits(12, bs); |
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| 398 | hdr->segment_number = get_bits(12, bs); |
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| 399 | |
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| 400 | /* following packets of same table extension */ |
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| 401 | if (pscte_27->segmented) { |
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| 402 | if ((hdr->table_extension != pscte_27->table_extension) || ((pscte_27->segment_number + 1) != hdr->segment_number) || |
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| 403 | (hdr->segment_number > pscte_27->last_segment_number) || (pscte_27->segment_data_size != (hdr->section_length - 10))) { |
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| 404 | BDBG_WRN(("%s: segmented data not match. table=(0x%04x,0x%04x),sn=(%d,%d),lsn=(%d,%d),slen=(%d,%d)", __func__, |
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| 405 | pscte_27->table_extension,pscte_27->table_extension, hdr->segment_number, pscte_27->segment_number, |
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| 406 | pscte_27->last_segment_number, hdr->last_segment_number, pscte_27->segment_data_size, hdr->section_length - 10)); |
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| 407 | goto EXIT_PARSER; |
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| 408 | } |
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| 409 | bs->data = bs->data + (bs->bindex >> 3); /* should be data byte 9 */ |
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| 410 | memcpy(pscte_27->segment_data + (pscte_27->segment_data_size * hdr->segment_number), bs->data, pscte_27->segment_data_size); |
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| 411 | /* if last segment */ |
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| 412 | if (hdr->segment_number == pscte_27->last_segment_number) { |
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| 413 | BDBG_WRN(("%s: packets assembled and ready to render!", __func__)); |
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| 414 | pscte_27->segmented = false; |
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| 415 | pscte_27->pdata = NULL; |
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| 416 | /* ready to process subtitle body assembled */ |
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| 417 | bits.data = pscte_27->segment_data; |
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| 418 | bits.bindex = 0; |
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| 419 | } else { |
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| 420 | pscte_27->segment_number = hdr->segment_number; |
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| 421 | return true; |
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| 422 | } |
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| 423 | } else { |
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| 424 | int size; |
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| 425 | |
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| 426 | /* validate for first of segment packet */ |
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| 427 | if (0 != hdr->segment_number || (hdr->last_segment_number < 1)) { |
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| 428 | BDBG_WRN(("%s: not a valid segment packet. Discard!", __func__)); |
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| 429 | return false; |
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| 430 | } |
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| 431 | /* all coming message will have same size of body */ |
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| 432 | pscte_27->segment_data_size = (hdr->section_length - 10); |
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| 433 | /* allow buffer to hold all message body */ |
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| 434 | size = pscte_27->segment_data_size * (hdr->last_segment_number + 1); |
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| 435 | pscte_27->segment_data = malloc(size); |
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| 436 | if (!pscte_27->segment_data) { |
|---|
| 437 | BDBG_WRN(("%s: out of memory. Discard all %d segmented packets", __func__, hdr->last_segment_number + 1)); |
|---|
| 438 | goto EXIT_PARSER; |
|---|
| 439 | } |
|---|
| 440 | bs->data = bs->data + (bs->bindex >> 3); /* should be data byte 9 */ |
|---|
| 441 | memcpy(pscte_27->segment_data, bs->data, pscte_27->segment_data_size); |
|---|
| 442 | /* remember current segment for validating coming packets of same table extension */ |
|---|
| 443 | pscte_27->table_extension = hdr->table_extension; |
|---|
| 444 | pscte_27->last_segment_number = hdr->last_segment_number; |
|---|
| 445 | pscte_27->segment_number = hdr->segment_number; |
|---|
| 446 | pscte_27->segmented = true; |
|---|
| 447 | /* need to reuse same data structure for coming packets of same table extension */ |
|---|
| 448 | pscte_27->pdata = pdata; |
|---|
| 449 | return true; |
|---|
| 450 | } |
|---|
| 451 | } |
|---|
| 452 | |
|---|
| 453 | /* should we check language match here? */ |
|---|
| 454 | hdr->ISO_639_language_code = get_bits_aligned(24, bs); |
|---|
| 455 | /* display modes */ |
|---|
| 456 | hdr->pre_clear_display = get_bits(1, bs); |
|---|
| 457 | hdr->immediate = get_bits(1, bs); |
|---|
| 458 | #ifdef SUBTITLE_DRAW_TEST |
|---|
| 459 | hdr->immediate = true; |
|---|
| 460 | #endif |
|---|
| 461 | |
|---|
| 462 | get_bits(1, bs); /* skip reserved */ |
|---|
| 463 | /* display stardards */ |
|---|
| 464 | hdr->display_standard = get_bits(5, bs); |
|---|
| 465 | if (hdr->display_standard >= 2) { |
|---|
| 466 | BDBG_WRN(("%s: don't support given display format %d", __func__, hdr->display_standard)); |
|---|
| 467 | goto EXIT_PARSER; |
|---|
| 468 | } |
|---|
| 469 | /* in-cue time */ |
|---|
| 470 | hdr->display_in_PTS = get_bits_aligned(32, bs); |
|---|
| 471 | hdr->display_in_PTS = (hdr->display_in_PTS >> 1); /* convert to 45KHz clock */ |
|---|
| 472 | hdr->subtitle_type = get_bits(4, bs); |
|---|
| 473 | if (SUBTITLE_TYPE_SIMPLE_BITMAP != hdr->subtitle_type) { |
|---|
| 474 | BDBG_WRN(("%s: bitmap type %d is not simple bitmap", __func__, hdr->subtitle_type)); |
|---|
| 475 | goto EXIT_PARSER; |
|---|
| 476 | } |
|---|
| 477 | get_bits(1, bs); /* skip reserved */ |
|---|
| 478 | hdr->display_duration = get_bits(11, bs); |
|---|
| 479 | hdr->block_length = get_bits(16, bs); |
|---|
| 480 | |
|---|
| 481 | /* simple bitmap, continue parse */ |
|---|
| 482 | get_bits(5, bs); |
|---|
| 483 | hdr->background_style = get_bits(1, bs); |
|---|
| 484 | hdr->outline_style = get_bits(2, bs); |
|---|
| 485 | |
|---|
| 486 | hdr->Y_component = get_bits(5, bs); |
|---|
| 487 | hdr->opaque_enable = get_bits(1, bs); |
|---|
| 488 | hdr->Cr_component = get_bits(5, bs); |
|---|
| 489 | hdr->Cb_component = get_bits(5, bs); |
|---|
| 490 | |
|---|
| 491 | /* character color */ |
|---|
| 492 | hdr->bitmap_top_H_coordinate = get_bits(12, bs); |
|---|
| 493 | hdr->bitmap_top_V_coordinate = get_bits(12, bs); |
|---|
| 494 | hdr->bitmap_bottom_H_coordinate = get_bits(12, bs); |
|---|
| 495 | hdr->bitmap_bottom_V_coordinate = get_bits(12, bs); |
|---|
| 496 | |
|---|
| 497 | /* Calculate the height and width from top and bottom coordinates */ |
|---|
| 498 | if ((hdr->bitmap_bottom_V_coordinate < hdr->bitmap_top_V_coordinate) || |
|---|
| 499 | (hdr->bitmap_bottom_H_coordinate < hdr->bitmap_top_H_coordinate)) { |
|---|
| 500 | BDBG_WRN(("%s: bad bitmap coordinate", __func__)); |
|---|
| 501 | goto EXIT_PARSER; |
|---|
| 502 | } |
|---|
| 503 | |
|---|
| 504 | /* if framed background style */ |
|---|
| 505 | if (hdr->background_style) { |
|---|
| 506 | hdr->frame_top_H_coordinate = get_bits(12, bs); |
|---|
| 507 | hdr->frame_top_V_coordinate = get_bits(12, bs); |
|---|
| 508 | hdr->frame_bottom_H_coordinate = get_bits(12, bs); |
|---|
| 509 | hdr->frame_bottom_V_coordinate = get_bits(12, bs); |
|---|
| 510 | hdr->frame_Y_component = get_bits(5, bs); |
|---|
| 511 | hdr->frame_opaque_enable = get_bits(1, bs); |
|---|
| 512 | hdr->frame_Cr_component = get_bits(5, bs); |
|---|
| 513 | hdr->frame_Cb_component = get_bits(5, bs); |
|---|
| 514 | } |
|---|
| 515 | |
|---|
| 516 | /* if outlined outline style */ |
|---|
| 517 | if (OS_OUTLINE == hdr->outline_style) { |
|---|
| 518 | get_bits(4, bs); /* skip reserved */ |
|---|
| 519 | hdr->outline_thickness = get_bits(4, bs); |
|---|
| 520 | hdr->outline_Y_component = get_bits(5, bs); |
|---|
| 521 | hdr->outline_opaque_enable = get_bits(1, bs); |
|---|
| 522 | hdr->outline_Cr_component = get_bits(5, bs); |
|---|
| 523 | hdr->outline_Cb_component = get_bits(5, bs); |
|---|
| 524 | } else if (OS_DROP_SHADOW == hdr->outline_style) { |
|---|
| 525 | hdr->shadow_right = get_bits(4, bs); |
|---|
| 526 | hdr->shadow_bottom = get_bits(4, bs); |
|---|
| 527 | hdr->shadow_Y_component = get_bits(5, bs); |
|---|
| 528 | hdr->shadow_opaque_enable = get_bits(1, bs); |
|---|
| 529 | hdr->shadow_Cr_component = get_bits(5, bs); |
|---|
| 530 | hdr->shadow_Cb_component = get_bits(5, bs); |
|---|
| 531 | } else if (OS_RESERVED == hdr->outline_style) { |
|---|
| 532 | /* what should we do */ |
|---|
| 533 | get_bits_aligned(24, bs); |
|---|
| 534 | } else { |
|---|
| 535 | BDBG_WRN(("%s: unsupported outline style %d", __func__, hdr->background_style)); |
|---|
| 536 | goto EXIT_PARSER; |
|---|
| 537 | } |
|---|
| 538 | |
|---|
| 539 | hdr->bitmap_length = get_bits(16, bs); |
|---|
| 540 | |
|---|
| 541 | if (hdr->bitmap_data) { |
|---|
| 542 | BDBG_WRN(("%s: bitmap_data allocated?", __func__)); |
|---|
| 543 | free(hdr->bitmap_data); |
|---|
| 544 | } |
|---|
| 545 | hdr->bitmap_data = malloc(hdr->bitmap_length); |
|---|
| 546 | if (!hdr->bitmap_data) { |
|---|
| 547 | BDBG_WRN(("%s: out of memory, %d", __func__, hdr->bitmap_length)); |
|---|
| 548 | goto EXIT_PARSER; |
|---|
| 549 | } |
|---|
| 550 | |
|---|
| 551 | /* position pointer to compressed data */ |
|---|
| 552 | bs->data = bs->data + (bs->bindex >> 3); |
|---|
| 553 | /* copy compressed data for later process */ |
|---|
| 554 | memcpy(hdr->bitmap_data, bs->data, hdr->bitmap_length); |
|---|
| 555 | |
|---|
| 556 | hPcr = GetDPCR(); |
|---|
| 557 | if (NULL == hPcr) { |
|---|
| 558 | hi = 0; |
|---|
| 559 | } |
|---|
| 560 | else |
|---|
| 561 | BXPT_PCR_GetStc(hPcr, &hi, &lo); |
|---|
| 562 | |
|---|
| 563 | /* if rendering immediaterly */ |
|---|
| 564 | if (hdr->immediate) { |
|---|
| 565 | /* discard any pending render subtitle if any per section 4.1 */ |
|---|
| 566 | if (pscte_27->render_list.count) |
|---|
| 567 | scte_27_reset_list(pscte_27, SC_RENDER); |
|---|
| 568 | /* if subtitle already rendered, clear screen first */ |
|---|
| 569 | if (pscte_27->clear_list.count) { |
|---|
| 570 | scte_27_reset_list(pscte_27, SC_CLEAR); |
|---|
| 571 | hdr->pre_clear_display = true; |
|---|
| 572 | } |
|---|
| 573 | #ifndef SUBTITLE_DRAW_TEST |
|---|
| 574 | hdr->display_in_PTS = hi; |
|---|
| 575 | #endif |
|---|
| 576 | } |
|---|
| 577 | hdr->display_out_PTS = hdr->display_in_PTS + |
|---|
| 578 | ((hdr->display_duration * PCRS_PER_SEC) / display_standard_array[hdr->display_standard]); |
|---|
| 579 | BDBG_MSG(("####### in=%lx, out=%lx, stc=%x, diff(out-in)=%d\n", hdr->display_in_PTS, hdr->display_out_PTS, hi, (hdr->display_out_PTS - hdr->display_in_PTS))); |
|---|
| 580 | if (hdr->immediate) { |
|---|
| 581 | scte_27_render_subtitle(pscte_27, pdata); |
|---|
| 582 | } |
|---|
| 583 | else { |
|---|
| 584 | insert_list(pscte_27->render_list, pdata); |
|---|
| 585 | /* post render event */ |
|---|
| 586 | bos_post_event(pscte_27->queue, (b_event_t*)&pscte_27->cmd_array[SC_RENDER]); |
|---|
| 587 | } |
|---|
| 588 | |
|---|
| 589 | /* free segment data buffer if any */ |
|---|
| 590 | if (pscte_27->segment_data) { |
|---|
| 591 | free(pscte_27->segment_data); |
|---|
| 592 | pscte_27->segment_data = NULL; |
|---|
| 593 | pscte_27->pdata = NULL; |
|---|
| 594 | } |
|---|
| 595 | return true; |
|---|
| 596 | |
|---|
| 597 | EXIT_PARSER: |
|---|
| 598 | if (pscte_27->segment_data) { |
|---|
| 599 | free(pscte_27->segment_data); |
|---|
| 600 | pscte_27->segment_data = NULL; |
|---|
| 601 | } |
|---|
| 602 | if (hdr->bitmap_data) { |
|---|
| 603 | free(hdr->bitmap_data); |
|---|
| 604 | hdr->bitmap_data = NULL; |
|---|
| 605 | } |
|---|
| 606 | return false; |
|---|
| 607 | } |
|---|
| 608 | |
|---|
| 609 | /* |
|---|
| 610 | * Create an 32 bit AYUV color using the 5 bit yuv components and opaque |
|---|
| 611 | */ |
|---|
| 612 | static uint32_t scte_27_create_color(uint8_t y, uint8_t u, uint8_t v,bool opaque) |
|---|
| 613 | { |
|---|
| 614 | uint32_t a; |
|---|
| 615 | |
|---|
| 616 | y = y << 3; |
|---|
| 617 | u = u << 3; |
|---|
| 618 | v = v << 3; |
|---|
| 619 | |
|---|
| 620 | a = opaque ? 0xff : 0x80; |
|---|
| 621 | a = (a << 24) | (y << 16) | (u << 8) | v; |
|---|
| 622 | |
|---|
| 623 | return a; |
|---|
| 624 | } |
|---|
| 625 | |
|---|
| 626 | /* |
|---|
| 627 | * Check given color against given CLUT index for the match |
|---|
| 628 | */ |
|---|
| 629 | static bool scte_27_check_color(int index, uint32_t color) |
|---|
| 630 | { |
|---|
| 631 | if (index < 0 || index > CLUT_MAX_ENTRIES) { |
|---|
| 632 | BDBG_WRN(("%s index is out of range", __func__)); |
|---|
| 633 | return false; |
|---|
| 634 | } |
|---|
| 635 | return(clut_color_entries[index] != color) ? true : false; |
|---|
| 636 | } |
|---|
| 637 | |
|---|
| 638 | /* |
|---|
| 639 | * fill block area of subtitle |
|---|
| 640 | */ |
|---|
| 641 | static void scte_27_block_fill( |
|---|
| 642 | pscte_27_handle pscte_27, |
|---|
| 643 | uint16_t x, /* x */ |
|---|
| 644 | uint16_t y, /* y */ |
|---|
| 645 | uint16_t width, /* width in pixels */ |
|---|
| 646 | uint16_t height, /* height */ |
|---|
| 647 | uint32_t color) /* color to fill, index for CLUT */ |
|---|
| 648 | { |
|---|
| 649 | bapp_t *p_app = (bapp_t*)pscte_27->v_app; |
|---|
| 650 | |
|---|
| 651 | bgfx_fill_rect(&p_app->surf,x,y,width,height,color); |
|---|
| 652 | bapp_sync(p_app); |
|---|
| 653 | bapp_flush_screen(p_app); |
|---|
| 654 | } |
|---|
| 655 | |
|---|
| 656 | /* |
|---|
| 657 | * draw subtitle |
|---|
| 658 | */ |
|---|
| 659 | static void scte_27_draw_subtitle( |
|---|
| 660 | pscte_27_handle pscte_27, |
|---|
| 661 | uint16_t x, |
|---|
| 662 | uint16_t y, |
|---|
| 663 | uint16_t width, |
|---|
| 664 | uint16_t height, |
|---|
| 665 | uint16_t spacing, |
|---|
| 666 | uint32_t bg, |
|---|
| 667 | uint32_t fg, |
|---|
| 668 | bool flush, |
|---|
| 669 | bool update_bg) |
|---|
| 670 | { |
|---|
| 671 | bapp_t *p_app = (bapp_t*)pscte_27->v_app; |
|---|
| 672 | |
|---|
| 673 | /* make sure that the parse function do range check, so if we are here, all the data are valid */ |
|---|
| 674 | bgfx_fill_box_subtitle(&p_app->surf, x, y, width, height, pscte_27->bitmap, pscte_27->bitmap_size, bg, fg, update_bg); |
|---|
| 675 | if (flush) { |
|---|
| 676 | bapp_sync(p_app); |
|---|
| 677 | bapp_flush_screen(p_app); |
|---|
| 678 | } |
|---|
| 679 | } |
|---|
| 680 | |
|---|
| 681 | #define CHECKCOLOR(index, clr) \ |
|---|
| 682 | if (scte_27_check_color(index, clr)) { \ |
|---|
| 683 | changed = true; \ |
|---|
| 684 | clut_color_entries[index] = clr; \ |
|---|
| 685 | *(palette + index) = clr; \ |
|---|
| 686 | } \ |
|---|
| 687 | clr = index; |
|---|
| 688 | |
|---|
| 689 | /* |
|---|
| 690 | * subtitle message render |
|---|
| 691 | * |
|---|
| 692 | * Parameters: |
|---|
| 693 | * pscte_27 pointer to scte_27 handle |
|---|
| 694 | * imme_pdata pointer to scte_27_data if immediately draw is requested |
|---|
| 695 | * |
|---|
| 696 | * Returns: |
|---|
| 697 | * true if parse the data correctly |
|---|
| 698 | * false if anything is wrong |
|---|
| 699 | */ |
|---|
| 700 | |
|---|
| 701 | static bool scte_27_render_subtitle(pscte_27_handle pscte_27, scte_27_data *imme_pdata) |
|---|
| 702 | { |
|---|
| 703 | bapp_t *p_app = (bapp_t*)pscte_27->v_app; |
|---|
| 704 | scte_27_data *pdata = NULL; |
|---|
| 705 | subtitle_message *hdr = NULL; |
|---|
| 706 | unsigned int *palette, palette_size; /* palette pointer */ |
|---|
| 707 | int i, j, width, height, maxbytes, size = 0; |
|---|
| 708 | bool ret = true, changed = false; |
|---|
| 709 | uint8_t *bitmap_data = NULL, on, off; |
|---|
| 710 | uint32_t flags, bitmap_length, bit_offset = 0, bit_offset_current = 0; |
|---|
| 711 | uint32_t bitmapFgColor, bitmapBgColor, shadowColor, outlineColor; |
|---|
| 712 | struct bit_state_t bits, *bs; |
|---|
| 713 | |
|---|
| 714 | #ifdef DEBUG |
|---|
| 715 | if (!pscte_27) { |
|---|
| 716 | BDBG_WRN(("%s: null ptr or zero data", __func__)); |
|---|
| 717 | return false; |
|---|
| 718 | } |
|---|
| 719 | #endif |
|---|
| 720 | |
|---|
| 721 | if (!imme_pdata) { |
|---|
| 722 | remove_list(pscte_27->render_list); |
|---|
| 723 | if (!pdata) { |
|---|
| 724 | /* since currently we poll it to check a) if has data, b) if it is time to render, so it is normal if no data */ |
|---|
| 725 | BDBG_MSG(("%s: no data to render", __func__)); |
|---|
| 726 | return false; |
|---|
| 727 | } |
|---|
| 728 | } |
|---|
| 729 | else |
|---|
| 730 | pdata = imme_pdata; |
|---|
| 731 | |
|---|
| 732 | /* now get subtitle data */ |
|---|
| 733 | hdr = pdata->msg; |
|---|
| 734 | if (!hdr) { |
|---|
| 735 | BDBG_ERR(("%s: null hdr ptr, pdata=%p. Something is wrong\n", pdata)); |
|---|
| 736 | return false; |
|---|
| 737 | } |
|---|
| 738 | |
|---|
| 739 | /* check time for rendering */ |
|---|
| 740 | if (!hdr->immediate) { |
|---|
| 741 | i = scte_27_pts_stc_diff(pscte_27, hdr->display_in_PTS); |
|---|
| 742 | /* if past, discard it */ |
|---|
| 743 | if (i < 0) { |
|---|
| 744 | BDBG_WRN(("%s: render time passed. Discard it", __func__)); |
|---|
| 745 | ret = false; |
|---|
| 746 | goto EXIT_RENDER; |
|---|
| 747 | } |
|---|
| 748 | if (i > 0) { |
|---|
| 749 | /* if furture, requeue it and try later */ |
|---|
| 750 | insert_list_head(pscte_27->render_list, pdata); |
|---|
| 751 | /* post render event */ |
|---|
| 752 | bos_post_event(pscte_27->queue, (b_event_t*)&pscte_27->cmd_array[SC_RENDER]); |
|---|
| 753 | return true; |
|---|
| 754 | } |
|---|
| 755 | } |
|---|
| 756 | if (!pscte_27->enabled) { |
|---|
| 757 | BDBG_WRN(("%s: render is disabled", __func__)); |
|---|
| 758 | ret = false; |
|---|
| 759 | goto EXIT_RENDER; |
|---|
| 760 | } |
|---|
| 761 | |
|---|
| 762 | width = hdr->bitmap_bottom_H_coordinate - hdr->bitmap_top_H_coordinate + 1; |
|---|
| 763 | height = hdr->bitmap_bottom_V_coordinate - hdr->bitmap_top_V_coordinate + 1; |
|---|
| 764 | maxbytes = width * height; |
|---|
| 765 | size = (maxbytes + 7) >> 3; |
|---|
| 766 | |
|---|
| 767 | /* TODO will reallcate? */ |
|---|
| 768 | if (size > BITMAP_BUFFER_SIZE) { |
|---|
| 769 | BDBG_WRN(("%s: bitmap buffer is too big ", __func__)); |
|---|
| 770 | ret = false; |
|---|
| 771 | goto EXIT_RENDER; |
|---|
| 772 | } |
|---|
| 773 | |
|---|
| 774 | if (size < hdr->bitmap_length) { |
|---|
| 775 | BDBG_WRN(("%s: uncompress bitmap (%d) < compressed bitmap (%d)", __func__, size, hdr->bitmap_length)); |
|---|
| 776 | ret = false; |
|---|
| 777 | goto EXIT_RENDER; |
|---|
| 778 | } |
|---|
| 779 | |
|---|
| 780 | /* clear bitmap buffer to all off */ |
|---|
| 781 | memset(pscte_27->bitmap, 0, size); |
|---|
| 782 | pscte_27->bitmap_size = size; |
|---|
| 783 | |
|---|
| 784 | /* prepare to decompress */ |
|---|
| 785 | bitmap_data = hdr->bitmap_data; |
|---|
| 786 | bitmap_length = hdr->bitmap_length; |
|---|
| 787 | |
|---|
| 788 | /* decompress data */ |
|---|
| 789 | bs = &bits; |
|---|
| 790 | bs->data = bitmap_data; |
|---|
| 791 | bs->bindex = 0; |
|---|
| 792 | |
|---|
| 793 | /* decompress data */ |
|---|
| 794 | while ((bs->bindex >> 3) < bitmap_length) { |
|---|
| 795 | on = off = 0; |
|---|
| 796 | i = get_bits(1, bs); |
|---|
| 797 | if (1 == i) { /* 1xxxYYYYY */ |
|---|
| 798 | on = get_bits(3, bs); |
|---|
| 799 | if (0 == on) |
|---|
| 800 | on = 8; |
|---|
| 801 | off = get_bits(5, bs); |
|---|
| 802 | if (0 == off) |
|---|
| 803 | off = 32; |
|---|
| 804 | } |
|---|
| 805 | else { |
|---|
| 806 | i = get_bits(1, bs); |
|---|
| 807 | if (1 == i) { /* 01YYYYYY */ |
|---|
| 808 | off = get_bits(6, bs); |
|---|
| 809 | if (0 == off) |
|---|
| 810 | off = 64; |
|---|
| 811 | } |
|---|
| 812 | else { |
|---|
| 813 | i = get_bits(1, bs); /* 001XXXX */ |
|---|
| 814 | if (1 == i) { |
|---|
| 815 | on = get_bits(4, bs); |
|---|
| 816 | if (0 == on) |
|---|
| 817 | on = 16; |
|---|
| 818 | } |
|---|
| 819 | else { |
|---|
| 820 | i = get_bits(2, bs); /* cmd */ |
|---|
| 821 | if (1 == i) { |
|---|
| 822 | /* end of line */ |
|---|
| 823 | bit_offset = bit_offset_current + width; |
|---|
| 824 | bit_offset_current = bit_offset; |
|---|
| 825 | continue; |
|---|
| 826 | } |
|---|
| 827 | else { |
|---|
| 828 | BDBG_MSG(("cmd=%d, bs->bindex=%d, offset=%d\n", i, bs->bindex, bit_offset)); |
|---|
| 829 | if (0 == i) |
|---|
| 830 | break; |
|---|
| 831 | continue; |
|---|
| 832 | } |
|---|
| 833 | } |
|---|
| 834 | } |
|---|
| 835 | } |
|---|
| 836 | |
|---|
| 837 | if ((bit_offset >> 3) + (on + off) <= maxbytes) { |
|---|
| 838 | while (on) { |
|---|
| 839 | uint8_t *uncompress_byte = (uint8_t *)(pscte_27->bitmap + (bit_offset >> 3)); |
|---|
| 840 | *uncompress_byte |= (1 << (7 - (bit_offset & 0x7))); |
|---|
| 841 | bit_offset++; |
|---|
| 842 | on--; |
|---|
| 843 | } |
|---|
| 844 | bit_offset += off; |
|---|
| 845 | } else { |
|---|
| 846 | BDBG_ERR(("%s: uncompress bitmap out of range, offset=%d, maxbytes=%d", __func__, (bit_offset >> 3) + (on + off), maxbytes)); |
|---|
| 847 | ret = false; |
|---|
| 848 | goto EXIT_RENDER; |
|---|
| 849 | } |
|---|
| 850 | } |
|---|
| 851 | if ((bs->bindex >> 3) != bitmap_length) { |
|---|
| 852 | BDBG_ERR(("s: uncompressed data not match", __func__)); |
|---|
| 853 | ret = false; |
|---|
| 854 | goto EXIT_RENDER; |
|---|
| 855 | } |
|---|
| 856 | |
|---|
| 857 | hdr->top_H = hdr->bitmap_top_H_coordinate; |
|---|
| 858 | hdr->top_V = hdr->bitmap_top_V_coordinate; |
|---|
| 859 | hdr->bottom_H = hdr->bitmap_bottom_H_coordinate; |
|---|
| 860 | hdr->bottom_V = hdr->bitmap_bottom_V_coordinate; |
|---|
| 861 | |
|---|
| 862 | bapp_palette_get(ePALETTE_APP,(unsigned int **)&palette, &palette_size); |
|---|
| 863 | |
|---|
| 864 | /* FG color */ |
|---|
| 865 | bitmapFgColor = scte_27_create_color(hdr->Y_component, hdr->Cr_component, hdr->Cb_component, hdr->opaque_enable); |
|---|
| 866 | CHECKCOLOR(CLUT_FG_INDEX, bitmapFgColor); |
|---|
| 867 | |
|---|
| 868 | /* BG color */ |
|---|
| 869 | if (hdr->background_style) { |
|---|
| 870 | if (hdr->frame_top_H_coordinate < hdr->top_H) { |
|---|
| 871 | hdr->top_H = hdr->frame_top_H_coordinate; |
|---|
| 872 | } |
|---|
| 873 | if (hdr->frame_top_V_coordinate < hdr->top_V) { |
|---|
| 874 | hdr->top_V = hdr->frame_top_V_coordinate; |
|---|
| 875 | } |
|---|
| 876 | if (hdr->frame_bottom_H_coordinate > hdr->bottom_H) { |
|---|
| 877 | hdr->bottom_H = hdr->frame_bottom_H_coordinate; |
|---|
| 878 | } |
|---|
| 879 | if (hdr->frame_bottom_V_coordinate > hdr->bottom_V) { |
|---|
| 880 | hdr->bottom_V = hdr->frame_bottom_V_coordinate; |
|---|
| 881 | } |
|---|
| 882 | bitmapBgColor = scte_27_create_color(hdr->frame_Y_component, |
|---|
| 883 | hdr->frame_Cr_component, hdr->frame_Cb_component, hdr->opaque_enable); |
|---|
| 884 | CHECKCOLOR(CLUT_BG_INDEX, bitmapBgColor); |
|---|
| 885 | } else |
|---|
| 886 | bitmapBgColor = eCOLOR_CLEAR; |
|---|
| 887 | |
|---|
| 888 | outlineColor = CLUT_OUTLINE_INDEX; |
|---|
| 889 | shadowColor = CLUT_FRAME_INDEX; |
|---|
| 890 | |
|---|
| 891 | switch (hdr->outline_style) { |
|---|
| 892 | case OS_OUTLINE: |
|---|
| 893 | hdr->bottom_H += hdr->outline_thickness * 2; |
|---|
| 894 | hdr->bottom_V += hdr->outline_thickness * 2; |
|---|
| 895 | outlineColor = scte_27_create_color(hdr->outline_Y_component, |
|---|
| 896 | hdr->outline_Cr_component, hdr->outline_Cb_component, hdr->outline_opaque_enable); |
|---|
| 897 | CHECKCOLOR(CLUT_OUTLINE_INDEX, outlineColor); |
|---|
| 898 | break; |
|---|
| 899 | |
|---|
| 900 | case OS_DROP_SHADOW: |
|---|
| 901 | hdr->bottom_H += hdr->shadow_right; |
|---|
| 902 | hdr->bottom_V += hdr->shadow_bottom; |
|---|
| 903 | shadowColor = scte_27_create_color(hdr->shadow_Y_component, |
|---|
| 904 | hdr->shadow_Cr_component, hdr->shadow_Cb_component, hdr->opaque_enable); |
|---|
| 905 | CHECKCOLOR(CLUT_FRAME_INDEX, shadowColor); |
|---|
| 906 | break; |
|---|
| 907 | } |
|---|
| 908 | |
|---|
| 909 | if (changed) { |
|---|
| 910 | /* update CLUT's last four entries which corresponding to subtitle */ |
|---|
| 911 | bgraphics_load_palette(p_app->graphics); |
|---|
| 912 | } |
|---|
| 913 | |
|---|
| 914 | if (pscte_27->clear_list.count > 0) { |
|---|
| 915 | hdr->pre_clear_display = true; |
|---|
| 916 | scte_27_reset_list(pscte_27, SC_CLEAR); |
|---|
| 917 | } |
|---|
| 918 | /* Draw the frame first */ |
|---|
| 919 | if (hdr->pre_clear_display) { |
|---|
| 920 | #if DISPLAY_PAL |
|---|
| 921 | scte_27_block_fill(pscte_27, 0, 0, BFMT_PAL_WIDTH, BFMT_PAL_HEIGHT - 2, eCOLOR_CLEAR); |
|---|
| 922 | #else |
|---|
| 923 | scte_27_block_fill(pscte_27, 0, 0, BFMT_NTSC_WIDTH, BFMT_NTSC_HEIGHT - 2, eCOLOR_CLEAR); |
|---|
| 924 | #endif |
|---|
| 925 | } |
|---|
| 926 | if (hdr->background_style) { |
|---|
| 927 | scte_27_block_fill(pscte_27, hdr->frame_top_H_coordinate, hdr->frame_top_V_coordinate, hdr->frame_bottom_H_coordinate - hdr->frame_top_H_coordinate + 1, |
|---|
| 928 | hdr->frame_bottom_V_coordinate - hdr->frame_top_V_coordinate + 1, bitmapBgColor); |
|---|
| 929 | } |
|---|
| 930 | |
|---|
| 931 | switch (hdr->outline_style) { |
|---|
| 932 | case OS_OUTLINE: |
|---|
| 933 | hdr->bottom_H += hdr->outline_thickness; |
|---|
| 934 | hdr->bottom_H += hdr->outline_thickness; |
|---|
| 935 | |
|---|
| 936 | for (i = -hdr->outline_thickness; i <= hdr->outline_thickness; i += 2) { |
|---|
| 937 | for (j = -hdr->outline_thickness; j <= hdr->outline_thickness; j += 2) { |
|---|
| 938 | if (i && j) { |
|---|
| 939 | scte_27_draw_subtitle(pscte_27, hdr->top_H + i, hdr->top_V + j, |
|---|
| 940 | width, height, 0, 0, outlineColor, false, false); |
|---|
| 941 | } |
|---|
| 942 | } |
|---|
| 943 | } |
|---|
| 944 | break; |
|---|
| 945 | |
|---|
| 946 | case OS_DROP_SHADOW: |
|---|
| 947 | scte_27_draw_subtitle(pscte_27, hdr->top_H + hdr->shadow_right, hdr->top_V + hdr->shadow_bottom, |
|---|
| 948 | width, height, 0, 0, shadowColor, false, false); |
|---|
| 949 | break; |
|---|
| 950 | } |
|---|
| 951 | |
|---|
| 952 | scte_27_draw_subtitle(pscte_27, hdr->top_H, hdr->top_V, width, height, 0, bitmapBgColor, bitmapFgColor, true, false); |
|---|
| 953 | BDBG_MSG(("%s: pdata=%p", __func__, pdata)); |
|---|
| 954 | BDBG_MSG(("subtitle x=%d, y=%d, w=%d, h=%d", hdr->top_H, hdr->top_V, width, height)); |
|---|
| 955 | BDBG_MSG(("clear x=%d, y=%d, w=%d, h=%d", hdr->top_H, hdr->top_V, hdr->bottom_H - hdr->top_H, hdr->bottom_V - hdr->top_V)); |
|---|
| 956 | /* passing through */ |
|---|
| 957 | |
|---|
| 958 | EXIT_RENDER: |
|---|
| 959 | /* to free allocated memory */ |
|---|
| 960 | if (hdr->bitmap_data) { |
|---|
| 961 | free(hdr->bitmap_data); |
|---|
| 962 | hdr->bitmap_data = NULL; |
|---|
| 963 | hdr->bitmap_size = 0; |
|---|
| 964 | } |
|---|
| 965 | /* if rendering successfull, put it to the clear_list list */ |
|---|
| 966 | if (pdata) { |
|---|
| 967 | if (true == ret) { |
|---|
| 968 | #ifdef SUBTITLE_DRAW_TEST |
|---|
| 969 | insert_list(pscte_27->free_list, pdata); |
|---|
| 970 | #else |
|---|
| 971 | insert_list(pscte_27->clear_list, pdata); |
|---|
| 972 | /* post render event */ |
|---|
| 973 | bos_post_event(pscte_27->queue, (b_event_t*)&pscte_27->cmd_array[SC_CLEAR]); |
|---|
| 974 | #endif |
|---|
| 975 | } |
|---|
| 976 | else { |
|---|
| 977 | insert_list(pscte_27->free_list, pdata); |
|---|
| 978 | } |
|---|
| 979 | } |
|---|
| 980 | return ret; |
|---|
| 981 | } |
|---|
| 982 | |
|---|
| 983 | /* |
|---|
| 984 | * clear subtitle |
|---|
| 985 | * |
|---|
| 986 | * Parameters: |
|---|
| 987 | * pscte_27 pointer to scte_27 handle |
|---|
| 988 | * |
|---|
| 989 | * Returns: |
|---|
| 990 | * true if parse the data correctly |
|---|
| 991 | * false if anything is wrong |
|---|
| 992 | */ |
|---|
| 993 | static bool scte_27_clear_subtitle(pscte_27_handle pscte_27) |
|---|
| 994 | { |
|---|
| 995 | uint32_t flags; |
|---|
| 996 | scte_27_data *pdata; |
|---|
| 997 | |
|---|
| 998 | if (bos_acquire_mutex(&pscte_27->mutex, SCTE_27_MUTEX_TIME) != b_ok) { |
|---|
| 999 | return false; |
|---|
| 1000 | } |
|---|
| 1001 | remove_list(pscte_27->clear_list); |
|---|
| 1002 | bos_release_mutex(&pscte_27->mutex); |
|---|
| 1003 | if (pdata) { |
|---|
| 1004 | subtitle_message *hdr = pdata->msg; |
|---|
| 1005 | int i; |
|---|
| 1006 | |
|---|
| 1007 | i = scte_27_pts_stc_diff(pscte_27, hdr->display_out_PTS); |
|---|
| 1008 | /* if furture, requeue it and try later */ |
|---|
| 1009 | if (i > 0) { |
|---|
| 1010 | /* furture */ |
|---|
| 1011 | insert_list_head(pscte_27->clear_list, pdata); |
|---|
| 1012 | /* post render event */ |
|---|
| 1013 | bos_post_event(pscte_27->queue, (b_event_t*)&pscte_27->cmd_array[SC_CLEAR]); |
|---|
| 1014 | } else { |
|---|
| 1015 | BDBG_MSG(("%s: clear subtitle, pdata=%p, x=%d, y=%d, w=%d, h=%d\n", __func__, pdata, hdr->top_H, hdr->top_V, |
|---|
| 1016 | hdr->bottom_H - hdr->top_H + 1, hdr->bottom_V - hdr->top_V + 1)); |
|---|
| 1017 | if (pscte_27->enabled) { |
|---|
| 1018 | scte_27_block_fill(pscte_27, hdr->top_H, hdr->top_V, |
|---|
| 1019 | hdr->bottom_H - hdr->top_H + 1, hdr->bottom_V - hdr->top_V + 1, eCOLOR_CLEAR); |
|---|
| 1020 | } |
|---|
| 1021 | /* put it back to free list */ |
|---|
| 1022 | insert_list(pscte_27->free_list, pdata); |
|---|
| 1023 | } |
|---|
| 1024 | return true; |
|---|
| 1025 | } |
|---|
| 1026 | return false; |
|---|
| 1027 | } |
|---|
| 1028 | |
|---|
| 1029 | /* |
|---|
| 1030 | * scte 27 event handler |
|---|
| 1031 | * |
|---|
| 1032 | * Parameters: |
|---|
| 1033 | * data pointer to scte_27 handle |
|---|
| 1034 | * |
|---|
| 1035 | * Returns: |
|---|
| 1036 | * NONE |
|---|
| 1037 | */ |
|---|
| 1038 | void scte_27_handler(void *data) |
|---|
| 1039 | { |
|---|
| 1040 | b_event_t orig_event, *cur_event; |
|---|
| 1041 | pscte_27_handle pscte_27 = (pscte_27_handle)data; |
|---|
| 1042 | |
|---|
| 1043 | while (true) { |
|---|
| 1044 | orig_event = pscte_27->cmd_array[0]; |
|---|
| 1045 | switch (pscte_27->cmd_array[0]) { |
|---|
| 1046 | default: |
|---|
| 1047 | case SC_NONE: |
|---|
| 1048 | cur_event = (b_event_t *)bos_pend_event(pscte_27->queue, SCTE_27_EVENT_TIME); |
|---|
| 1049 | /* if no pending event */ |
|---|
| 1050 | if (NULL == cur_event) { |
|---|
| 1051 | if (pscte_27->render_list.count) |
|---|
| 1052 | scte_27_render_subtitle(pscte_27, (pscte_27_data)NULL); |
|---|
| 1053 | if (pscte_27->clear_list.count) |
|---|
| 1054 | scte_27_clear_subtitle(pscte_27); |
|---|
| 1055 | break; |
|---|
| 1056 | } |
|---|
| 1057 | pscte_27->cmd_array[0] = *cur_event; |
|---|
| 1058 | break; |
|---|
| 1059 | |
|---|
| 1060 | case SC_RENDER: |
|---|
| 1061 | scte_27_render_subtitle(pscte_27, (pscte_27_data)NULL); |
|---|
| 1062 | if (pscte_27->clear_list.count) |
|---|
| 1063 | scte_27_clear_subtitle(pscte_27); |
|---|
| 1064 | break; |
|---|
| 1065 | |
|---|
| 1066 | case SC_CLEAR: |
|---|
| 1067 | /* to clear subtitle */ |
|---|
| 1068 | scte_27_clear_subtitle(pscte_27); |
|---|
| 1069 | if (pscte_27->render_list.count) |
|---|
| 1070 | scte_27_render_subtitle(pscte_27, (pscte_27_data)NULL); |
|---|
| 1071 | break; |
|---|
| 1072 | |
|---|
| 1073 | case SC_IDLE: |
|---|
| 1074 | /* if idle, wait for longer time */ |
|---|
| 1075 | orig_event = SC_NONE; |
|---|
| 1076 | bos_sleep(SCTE_27_EVENT_TIME * 10); |
|---|
| 1077 | break; |
|---|
| 1078 | } |
|---|
| 1079 | } |
|---|
| 1080 | } |
|---|
| 1081 | |
|---|