1 /*
2 * Copyright (C) 2008 Michael Niedermayer
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "parser.h"
22
parse(AVCodecParserContext * s,AVCodecContext * avctx,const uint8_t ** poutbuf,int * poutbuf_size,const uint8_t * buf,int buf_size)23 static int parse(AVCodecParserContext *s,
24 AVCodecContext *avctx,
25 const uint8_t **poutbuf, int *poutbuf_size,
26 const uint8_t *buf, int buf_size)
27 {
28 if (avctx->codec_id == AV_CODEC_ID_THEORA)
29 s->pict_type = (buf[0] & 0x40) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
30 else
31 s->pict_type = (buf[0] & 0x80) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
32
33 *poutbuf = buf;
34 *poutbuf_size = buf_size;
35 return buf_size;
36 }
37
38 AVCodecParser ff_vp3_parser = {
39 .codec_ids = {
40 AV_CODEC_ID_THEORA, AV_CODEC_ID_VP3,
41 AV_CODEC_ID_VP6, AV_CODEC_ID_VP6F, AV_CODEC_ID_VP6A
42 },
43 .parser_parse = parse,
44 };
45