mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-28 18:32:22 +00:00
2c7d3ecfc9
* commit 'b70d7a4ac72d23f3448f3b08b770fdf5f57de222': lavc: add a native Opus decoder. Conflicts: Changelog configure libavcodec/version.h Fate tests pass with both avresample as well as swresample based opus decoder, but are disabled (reference files are very large so i want to think a day or 2 about if theres an alternative or if they could be avoided, they also dont match the official samples) Merged-by: Michael Niedermayer <michaelni@gmx.at>
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2013-2014 Mozilla Corporation
|
|
*
|
|
* 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
|
|
* Opus parser
|
|
*
|
|
* Determines the duration for each packet.
|
|
*/
|
|
|
|
#include "avcodec.h"
|
|
#include "opus.h"
|
|
|
|
typedef struct OpusParseContext {
|
|
OpusContext ctx;
|
|
OpusPacket pkt;
|
|
int extradata_parsed;
|
|
} OpusParseContext;
|
|
|
|
static int opus_parse(AVCodecParserContext *ctx, AVCodecContext *avctx,
|
|
const uint8_t **poutbuf, int *poutbuf_size,
|
|
const uint8_t *buf, int buf_size)
|
|
{
|
|
OpusParseContext *s = ctx->priv_data;
|
|
int ret;
|
|
|
|
if (!buf_size)
|
|
return 0;
|
|
|
|
if (avctx->extradata && !s->extradata_parsed) {
|
|
ret = ff_opus_parse_extradata(avctx, &s->ctx);
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error parsing Ogg extradata.\n");
|
|
goto fail;
|
|
}
|
|
av_freep(&s->ctx.channel_maps);
|
|
s->extradata_parsed = 1;
|
|
}
|
|
|
|
ret = ff_opus_parse_packet(&s->pkt, buf, buf_size, s->ctx.nb_streams > 1);
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error parsing Opus packet header.\n");
|
|
goto fail;
|
|
}
|
|
|
|
ctx->duration = s->pkt.frame_count * s->pkt.frame_duration;
|
|
|
|
fail:
|
|
*poutbuf = buf;
|
|
*poutbuf_size = buf_size;
|
|
return buf_size;
|
|
}
|
|
|
|
AVCodecParser ff_opus_parser = {
|
|
.codec_ids = { AV_CODEC_ID_OPUS },
|
|
.priv_data_size = sizeof(OpusParseContext),
|
|
.parser_parse = opus_parse,
|
|
};
|