Revert "Prepare for O_DIRECT"

[frescor/ffmpeg.git] / libavformat / daud.c

diff --git a/libavformat/daud.c b/libavformat/daud.c
index 7799a1f047a453a9ed95cf051ae760f60c69f4f5..cdd831ba4b0d081544cc1b5eb0754c3153d0607f 100644 (file)
--- a/libavformat/daud.c
+++ b/libavformat/daud.c
@@ -1,25 +1,29 @@
 /*
- * 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 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 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,
+ * 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 this library; if not, write to the Free Software
+ * 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_header(AVFormatContext *s, AVFormatParameters *ap) {
     AVStream *st = av_new_stream(s, 0);
+    if (!st)
+        return AVERROR(ENOMEM);
     st->codec->codec_type = CODEC_TYPE_AUDIO;
     st->codec->codec_id = CODEC_ID_PCM_S24DAUD;
     st->codec->codec_tag = MKTAG('d', 'a', 'u', 'd');
@@ -27,15 +31,15 @@ static int daud_header(AVFormatContext *s, AVFormatParameters *ap) {
     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;
+    ByteIOContext *pb = s->pb;
     int ret, size;
     if (url_feof(pb))
-        return AVERROR_IO;
+        return AVERROR(EIO);
     size = get_be16(pb);
     get_be16(pb); // unknown
     ret = av_get_packet(pb, pkt, size);
@@ -43,9 +47,27 @@ static int daud_packet(AVFormatContext *s, AVPacket *pkt) {
     return ret;
 }
 
-static AVInputFormat daud_demuxer = {
+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)
+{
+    put_be16(s->pb, pkt->size);
+    put_be16(s->pb, 0x8010); // unknown
+    put_buffer(s->pb, pkt->data, pkt->size);
+    put_flush_packet(s->pb);
+    return 0;
+}
+
+#if CONFIG_DAUD_DEMUXER
+AVInputFormat daud_demuxer = {
     "daud",
-    "D-Cinema audio format",
+    NULL_IF_CONFIG_SMALL("D-Cinema audio format"),
     0,
     NULL,
     daud_header,
@@ -54,10 +76,20 @@ static AVInputFormat daud_demuxer = {
     NULL,
     .extensions = "302",
 };
+#endif
 
-int daud_init(void)
+#if CONFIG_DAUD_MUXER
+AVOutputFormat daud_muxer =
 {
-    av_register_input_format(&daud_demuxer);
-    return 0;
-}
-
+    "daud",
+    NULL_IF_CONFIG_SMALL("D-Cinema audio format"),
+    NULL,
+    "302",
+    0,
+    CODEC_ID_PCM_S24DAUD,
+    CODEC_ID_NONE,
+    daud_write_header,
+    daud_write_packet,
+    .flags= AVFMT_NOTIMESTAMPS,
+};
+#endif