2 * Copyright (c) 2013-2014 Mozilla Corporation
4 * This file is part of FFmpeg.
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.
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.
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
25 * Determines the duration for each packet.
31 typedef struct OpusParseContext
{
37 static int opus_parse(AVCodecParserContext
*ctx
, AVCodecContext
*avctx
,
38 const uint8_t **poutbuf
, int *poutbuf_size
,
39 const uint8_t *buf
, int buf_size
)
41 OpusParseContext
*s
= ctx
->priv_data
;
47 if (avctx
->extradata
&& !s
->extradata_parsed
) {
48 ret
= ff_opus_parse_extradata(avctx
, &s
->ctx
);
50 av_log(avctx
, AV_LOG_ERROR
, "Error parsing Ogg extradata.\n");
53 av_freep(&s
->ctx
.channel_maps
);
54 s
->extradata_parsed
= 1;
57 ret
= ff_opus_parse_packet(&s
->pkt
, buf
, buf_size
, s
->ctx
.nb_streams
> 1);
59 av_log(avctx
, AV_LOG_ERROR
, "Error parsing Opus packet header.\n");
63 ctx
->duration
= s
->pkt
.frame_count
* s
->pkt
.frame_duration
;
67 *poutbuf_size
= buf_size
;
71 AVCodecParser ff_opus_parser
= {
72 .codec_ids
= { AV_CODEC_ID_OPUS
},
73 .priv_data_size
= sizeof(OpusParseContext
),
74 .parser_parse
= opus_parse
,