[deb_ffmpeg.git] / ffmpeg / libavformat / daudenc.c

/*
 * D-Cinema audio muxer
 * Copyright (c) 2005 Reimar Döffinger
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg 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.
 *
 * FFmpeg 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 FFmpeg; 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,
};
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* D-Cinema audio muxer
	3	* Copyright (c) 2005 Reimar Döffinger
	4	*
	5	* This file is part of FFmpeg.
	6	*
	7	* FFmpeg is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU Lesser General Public
	9	* License as published by the Free Software Foundation; either
	10	* version 2.1 of the License, or (at your option) any later version.
	11	*
	12	* FFmpeg is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
	18	* License along with FFmpeg; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
	22	#include "avformat.h"
	23
	24	static int daud_write_header(struct AVFormatContext *s)
	25	{
	26	AVCodecContext *codec = s->streams[0]->codec;
	27	if (codec->channels!=6 \|\| codec->sample_rate!=96000)
	28	return -1;
	29	return 0;
	30	}
	31
	32	static int daud_write_packet(struct AVFormatContext s, AVPacket pkt)
	33	{
	34	if (pkt->size > 65535) {
	35	av_log(s, AV_LOG_ERROR,
	36	"Packet size too large for s302m. (%d > 65535)\n", pkt->size);
	37	return -1;
	38	}
	39	avio_wb16(s->pb, pkt->size);
	40	avio_wb16(s->pb, 0x8010); // unknown
	41	avio_write(s->pb, pkt->data, pkt->size);
	42	return 0;
	43	}
	44
	45	AVOutputFormat ff_daud_muxer = {
	46	.name = "daud",
	47	.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"),
	48	.extensions = "302",
	49	.audio_codec = AV_CODEC_ID_PCM_S24DAUD,
	50	.video_codec = AV_CODEC_ID_NONE,
	51	.write_header = daud_write_header,
	52	.write_packet = daud_write_packet,
	53	.flags = AVFMT_NOTIMESTAMPS,
	54	};