+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;
+}
+
+#if CONFIG_DAUD_DEMUXER
+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",
+};
+#endif
+
+#if CONFIG_DAUD_MUXER
+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,