2 * Copyright (c) 2013-2014 Mozilla Corporation
4 * This file is part of Libav.
6 * Libav 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 * Libav 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 Libav; 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,