/*
- * D-Cinema audio decoder.
- * Copyright (c) 2005 Reimar Döffinger.
+ * D-Cinema audio demuxer
+ * Copyright (c) 2005 Reimar Döffinger
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
+ * 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_header(AVFormatContext *s, AVFormatParameters *ap) {
AVStream *st = av_new_stream(s, 0);
- st->codec->codec_type = CODEC_TYPE_AUDIO;
+ if (!st)
+ return AVERROR(ENOMEM);
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_PCM_S24DAUD;
st->codec->codec_tag = MKTAG('d', 'a', 'u', 'd');
st->codec->channels = 6;
st->codec->sample_rate = 96000;
st->codec->bit_rate = 3 * 6 * 96000 * 8;
st->codec->block_align = 3 * 6;
- st->codec->bits_per_sample = 24;
+ st->codec->bits_per_coded_sample = 24;
return 0;
}
static int daud_packet(AVFormatContext *s, AVPacket *pkt) {
- ByteIOContext *pb = &s->pb;
+ AVIOContext *pb = s->pb;
int ret, size;
- if (url_feof(pb))
- return AVERROR_IO;
- size = get_be16(pb);
- get_be16(pb); // unknown
+ 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;
}
-static AVInputFormat daud_demuxer = {
- "daud",
- "D-Cinema audio format",
- 0,
- NULL,
- daud_header,
- daud_packet,
- NULL,
- NULL,
- .extensions = "302",
-};
+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;
+}
-int daud_init(void)
+static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
- av_register_input_format(&daud_demuxer);
+ 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);
+ avio_flush(s->pb);
return 0;
}
+#if CONFIG_DAUD_DEMUXER
+AVInputFormat ff_daud_demuxer = {
+ .name = "daud",
+ .long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio format"),
+ .read_header = daud_header,
+ .read_packet = daud_packet,
+ .extensions = "302",
+};
+#endif
+
+#if CONFIG_DAUD_MUXER
+AVOutputFormat ff_daud_muxer = {
+ .name = "daud",
+ .long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio format"),
+ .extensions = "302",
+ .audio_codec = CODEC_ID_PCM_S24DAUD,
+ .video_codec = CODEC_ID_NONE,
+ .write_header = daud_write_header,
+ .write_packet = daud_write_packet,
+ .flags = AVFMT_NOTIMESTAMPS,
+};
+#endif