mirror of https://github.com/FFmpeg/FFmpeg.git
parent
f920d08953
commit
0955e57ad0
3 changed files with 56 additions and 38 deletions
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/*
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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 Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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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static int daud_write_header(struct AVFormatContext *s) |
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{ |
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AVCodecContext *codec = s->streams[0]->codec; |
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if (codec->channels!=6 || codec->sample_rate!=96000) |
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return -1; |
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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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if (pkt->size > 65535) { |
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av_log(s, AV_LOG_ERROR, |
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"Packet size too large for s302m. (%d > 65535)\n", pkt->size); |
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return -1; |
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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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AVOutputFormat ff_daud_muxer = { |
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.name = "daud", |
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.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"), |
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.extensions = "302", |
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.audio_codec = AV_CODEC_ID_PCM_S24DAUD, |
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.video_codec = AV_CODEC_ID_NONE, |
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.write_header = daud_write_header, |
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.write_packet = daud_write_packet, |
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.flags = AVFMT_NOTIMESTAMPS, |
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}; |
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