47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
|
/*
|
||
|
|
* This file is part of FFmpeg.
|
||
|
|
*
|
||
|
|
* FFmpeg is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with FFmpeg; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* Ulead DV audio parser
|
||
|
|
*
|
||
|
|
* Determines the duration for each packet.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "parser.h"
|
||
|
|
#include "dvaudio.h"
|
||
|
|
|
||
|
|
static int dvaudio_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
|
||
|
|
const uint8_t **poutbuf, int *poutbuf_size,
|
||
|
|
const uint8_t *buf, int buf_size)
|
||
|
|
{
|
||
|
|
if (buf_size >= 248)
|
||
|
|
s1->duration = dv_get_audio_sample_count(buf + 244, avctx->block_align == 8640);
|
||
|
|
|
||
|
|
/* always return the full packet. this parser isn't doing any splitting or
|
||
|
|
combining, only packet analysis */
|
||
|
|
*poutbuf = buf;
|
||
|
|
*poutbuf_size = buf_size;
|
||
|
|
return buf_size;
|
||
|
|
}
|
||
|
|
|
||
|
|
AVCodecParser ff_dvaudio_parser = {
|
||
|
|
.codec_ids = { AV_CODEC_ID_DVAUDIO },
|
||
|
|
.parser_parse = dvaudio_parse,
|
||
|
|
};
|