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/dauddec.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 libavformat/dauddec.c (limited to 'libavformat/dauddec.c') diff --git a/libavformat/dauddec.c b/libavformat/dauddec.c new file mode 100644 index 0000000000..1855e84aae --- /dev/null +++ b/libavformat/dauddec.c @@ -0,0 +1,59 @@ +/* + * D-Cinema audio demuxer + * 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 "libavutil/channel_layout.h" +#include "avformat.h" + +static int daud_header(AVFormatContext *s) { + AVStream *st = avformat_new_stream(s, NULL); + if (!st) + return AVERROR(ENOMEM); + st->codec->codec_type = AVMEDIA_TYPE_AUDIO; + st->codec->codec_id = AV_CODEC_ID_PCM_S24DAUD; + st->codec->codec_tag = MKTAG('d', 'a', 'u', 'd'); + st->codec->channels = 6; + st->codec->channel_layout = AV_CH_LAYOUT_5POINT1; + st->codec->sample_rate = 96000; + st->codec->bit_rate = 3 * 6 * 96000 * 8; + st->codec->block_align = 3 * 6; + st->codec->bits_per_coded_sample = 24; + return 0; +} + +static int daud_packet(AVFormatContext *s, AVPacket *pkt) { + AVIOContext *pb = s->pb; + int ret, size; + if (pb->eof_reached) + return AVERROR(EIO); + size = avio_rb16(pb); + avio_rb16(pb); // unknown + ret = av_get_packet(pb, pkt, size); + pkt->stream_index = 0; + return ret; +} + +AVInputFormat ff_daud_demuxer = { + .name = "daud", + .long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"), + .read_header = daud_header, + .read_packet = daud_packet, + .extensions = "302", +}; -- cgit v1.2.3