From 0955e57ad07640574fc20ce0bea3c0b83982ada1 Mon Sep 17 00:00:00 2001 From: Nidhi Makhijani Date: Mon, 23 Jun 2014 09:33:50 +0530 Subject: daud: split muxer and demuxer Signed-off-by: Diego Biurrun --- libavformat/daudenc.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 libavformat/daudenc.c (limited to 'libavformat/daudenc.c') diff --git a/libavformat/daudenc.c b/libavformat/daudenc.c new file mode 100644 index 0000000000..416e895395 --- /dev/null +++ b/libavformat/daudenc.c @@ -0,0 +1,54 @@ +/* + * D-Cinema audio muxer + * Copyright (c) 2005 Reimar Döffinger + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "avformat.h" + +static int daud_write_header(struct AVFormatContext *s) +{ + AVCodecContext *codec = s->streams[0]->codec; + if (codec->channels!=6 || codec->sample_rate!=96000) + return -1; + return 0; +} + +static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt) +{ + if (pkt->size > 65535) { + av_log(s, AV_LOG_ERROR, + "Packet size too large for s302m. (%d > 65535)\n", pkt->size); + return -1; + } + avio_wb16(s->pb, pkt->size); + avio_wb16(s->pb, 0x8010); // unknown + avio_write(s->pb, pkt->data, pkt->size); + return 0; +} + +AVOutputFormat ff_daud_muxer = { + .name = "daud", + .long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"), + .extensions = "302", + .audio_codec = AV_CODEC_ID_PCM_S24DAUD, + .video_codec = AV_CODEC_ID_NONE, + .write_header = daud_write_header, + .write_packet = daud_write_packet, + .flags = AVFMT_NOTIMESTAMPS, +}; -- cgit v1.2.3