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https://github.com/FFmpeg/FFmpeg.git
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03b04eef72
Several muxers (e.g. pcm muxers) did not check the number of streams even though the individual streams were not recoverable from the muxed files. This commit changes this by using the FF_OFMT_MAX_ONE_OF_EACH flag where appropriate. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*
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* D-Cinema audio muxer
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* Copyright (c) 2005 Reimar Döffinger
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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 "avformat.h"
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#include "mux.h"
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static int daud_init(struct AVFormatContext *s)
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{
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AVCodecParameters *par = s->streams[0]->codecpar;
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int ret;
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if (par->ch_layout.nb_channels != 6) {
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av_log(s, AV_LOG_ERROR,
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"Invalid number of channels %d, must be exactly 6\n",
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par->ch_layout.nb_channels);
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return AVERROR(EINVAL);
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}
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if (par->sample_rate != 96000) {
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av_log(s, AV_LOG_ERROR,
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"Invalid sample rate %d, must be 96000\n",
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par->sample_rate);
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return AVERROR(EINVAL);
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}
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ret = ff_stream_add_bitstream_filter(s->streams[0], "pcm_rechunk", "n=2000:pad=0");
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if (ret < 0)
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return ret;
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return 0;
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}
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static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt)
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{
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avio_wb16(s->pb, pkt->size);
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avio_wb16(s->pb, 0x8010); // unknown
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avio_write(s->pb, pkt->data, pkt->size);
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return 0;
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}
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const FFOutputFormat ff_daud_muxer = {
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.p.name = "daud",
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.p.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"),
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.p.extensions = "302",
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.p.audio_codec = AV_CODEC_ID_PCM_S24DAUD,
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.p.video_codec = AV_CODEC_ID_NONE,
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.p.subtitle_codec = AV_CODEC_ID_NONE,
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.p.flags = AVFMT_NOTIMESTAMPS,
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.flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH,
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.init = daud_init,
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.write_packet = daud_write_packet,
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};
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