daud: split muxer and demuxer

Signed-off-by: Diego Biurrun <diego@biurrun.de>

1 files changed, 54 insertions, 0 deletions

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,
+};