| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * SSA/ASS decoder | ||
| 3 | * Copyright (c) 2010 Aurelien Jacobs <aurel@gnuage.org> | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include <string.h> | ||
| 23 | |||
| 24 | #include "avcodec.h" | ||
| 25 | #include "ass.h" | ||
| 26 | #include "codec_internal.h" | ||
| 27 | #include "config_components.h" | ||
| 28 | #include "libavutil/internal.h" | ||
| 29 | #include "libavutil/mem.h" | ||
| 30 | |||
| 31 | 8 | static av_cold int ass_decode_init(AVCodecContext *avctx) | |
| 32 | { | ||
| 33 | 8 | avctx->subtitle_header = av_malloc(avctx->extradata_size + 1); | |
| 34 |
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8 | if (!avctx->subtitle_header) |
| 35 | ✗ | return AVERROR(ENOMEM); | |
| 36 |
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8 | if (avctx->extradata_size) |
| 37 | 8 | memcpy(avctx->subtitle_header, avctx->extradata, avctx->extradata_size); | |
| 38 | 8 | avctx->subtitle_header[avctx->extradata_size] = 0; | |
| 39 | 8 | avctx->subtitle_header_size = avctx->extradata_size; | |
| 40 | 8 | return 0; | |
| 41 | } | ||
| 42 | |||
| 43 | 8 | static int ass_decode_frame(AVCodecContext *avctx, AVSubtitle *sub, | |
| 44 | int *got_sub_ptr, const AVPacket *avpkt) | ||
| 45 | { | ||
| 46 |
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8 | if (avpkt->size <= 0) |
| 47 | ✗ | return avpkt->size; | |
| 48 | |||
| 49 | 8 | sub->rects = av_malloc(sizeof(*sub->rects)); | |
| 50 |
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8 | if (!sub->rects) |
| 51 | ✗ | return AVERROR(ENOMEM); | |
| 52 | 8 | sub->rects[0] = av_mallocz(sizeof(*sub->rects[0])); | |
| 53 |
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8 | if (!sub->rects[0]) |
| 54 | ✗ | return AVERROR(ENOMEM); | |
| 55 | 8 | sub->num_rects = 1; | |
| 56 | 8 | sub->rects[0]->type = SUBTITLE_ASS; | |
| 57 | 8 | sub->rects[0]->ass = av_strdup(avpkt->data); | |
| 58 |
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8 | if (!sub->rects[0]->ass) |
| 59 | ✗ | return AVERROR(ENOMEM); | |
| 60 | 8 | *got_sub_ptr = 1; | |
| 61 | 8 | return avpkt->size; | |
| 62 | } | ||
| 63 | |||
| 64 | #if CONFIG_SSA_DECODER | ||
| 65 | const FFCodec ff_ssa_decoder = { | ||
| 66 | .p.name = "ssa", | ||
| 67 | CODEC_LONG_NAME("ASS (Advanced SubStation Alpha) subtitle"), | ||
| 68 | .p.type = AVMEDIA_TYPE_SUBTITLE, | ||
| 69 | .p.id = AV_CODEC_ID_ASS, | ||
| 70 | .init = ass_decode_init, | ||
| 71 | FF_CODEC_DECODE_SUB_CB(ass_decode_frame), | ||
| 72 | }; | ||
| 73 | #endif | ||
| 74 | |||
| 75 | #if CONFIG_ASS_DECODER | ||
| 76 | const FFCodec ff_ass_decoder = { | ||
| 77 | .p.name = "ass", | ||
| 78 | CODEC_LONG_NAME("ASS (Advanced SubStation Alpha) subtitle"), | ||
| 79 | .p.type = AVMEDIA_TYPE_SUBTITLE, | ||
| 80 | .p.id = AV_CODEC_ID_ASS, | ||
| 81 | .init = ass_decode_init, | ||
| 82 | FF_CODEC_DECODE_SUB_CB(ass_decode_frame), | ||
| 83 | }; | ||
| 84 | #endif | ||
| 85 |