FFmpeg
libavcodec
vp3_parser.c
Go to the documentation of this file.
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/*
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* Copyright (C) 2008 Michael Niedermayer
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
parser.h
"
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static
int
parse
(
AVCodecParserContext
*
s
,
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AVCodecContext
*avctx,
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const
uint8_t **poutbuf,
int
*poutbuf_size,
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const
uint8_t *buf,
int
buf_size)
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{
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if
(avctx->
codec_id
==
AV_CODEC_ID_THEORA
)
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s
->pict_type = (buf[0] & 0x40) ?
AV_PICTURE_TYPE_P
:
AV_PICTURE_TYPE_I
;
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else
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s
->pict_type = (buf[0] & 0x80) ?
AV_PICTURE_TYPE_P
:
AV_PICTURE_TYPE_I
;
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*poutbuf = buf;
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*poutbuf_size = buf_size;
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return
buf_size;
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}
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const
AVCodecParser
ff_vp3_parser
= {
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.
codec_ids
= {
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AV_CODEC_ID_THEORA
,
AV_CODEC_ID_VP3
,
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AV_CODEC_ID_VP6
,
AV_CODEC_ID_VP6F
,
AV_CODEC_ID_VP6A
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},
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.parser_parse =
parse
,
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};
AV_CODEC_ID_VP6F
@ AV_CODEC_ID_VP6F
Definition:
codec_id.h:144
AV_CODEC_ID_VP6
@ AV_CODEC_ID_VP6
Definition:
codec_id.h:143
parse
static int parse(AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size)
Definition:
vp3_parser.c:23
s
#define s(width, name)
Definition:
cbs_vp9.c:198
AVCodecContext::codec_id
enum AVCodecID codec_id
Definition:
avcodec.h:461
AV_PICTURE_TYPE_I
@ AV_PICTURE_TYPE_I
Intra.
Definition:
avutil.h:279
AV_CODEC_ID_VP6A
@ AV_CODEC_ID_VP6A
Definition:
codec_id.h:158
AVCodecParser::codec_ids
int codec_ids[7]
Definition:
avcodec.h:2908
AV_CODEC_ID_VP3
@ AV_CODEC_ID_VP3
Definition:
codec_id.h:81
AV_CODEC_ID_THEORA
@ AV_CODEC_ID_THEORA
Definition:
codec_id.h:82
parser.h
AVCodecParserContext
Definition:
avcodec.h:2748
AVCodecContext
main external API structure.
Definition:
avcodec.h:451
AV_PICTURE_TYPE_P
@ AV_PICTURE_TYPE_P
Predicted.
Definition:
avutil.h:280
AVCodecParser
Definition:
avcodec.h:2907
ff_vp3_parser
const AVCodecParser ff_vp3_parser
Definition:
vp3_parser.c:38
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