---
 libavformat/Makefile          |  4 +-
 libavformat/au.h              | 39 +++++++++++++++++
 libavformat/{au.c => audec.c} | 93 +----------------------------------------
 libavformat/auenc.c           | 97 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 140 insertions(+), 93 deletions(-)
 create mode 100644 libavformat/au.h
 rename libavformat/{au.c => audec.c} (61%)
 create mode 100644 libavformat/auenc.c

diff --git a/libavformat/Makefile b/libavformat/Makefile
index 89d2d42..3414611 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -71,8 +71,8 @@ OBJS-$(CONFIG_ASF_DEMUXER)               += asfdec.o asf.o 
asfcrypt.o \
 OBJS-$(CONFIG_ASF_MUXER)                 += asfenc.o asf.o
 OBJS-$(CONFIG_ASS_DEMUXER)               += assdec.o
 OBJS-$(CONFIG_ASS_MUXER)                 += assenc.o
-OBJS-$(CONFIG_AU_DEMUXER)                += au.o pcm.o
-OBJS-$(CONFIG_AU_MUXER)                  += au.o rawenc.o
+OBJS-$(CONFIG_AU_DEMUXER)                += audec.o pcm.o
+OBJS-$(CONFIG_AU_MUXER)                  += auenc.o rawenc.o
 OBJS-$(CONFIG_AVI_DEMUXER)               += avidec.o
 OBJS-$(CONFIG_AVI_MUXER)                 += avienc.o
 OBJS-$(CONFIG_AVISYNTH)                  += avisynth.o
diff --git a/libavformat/au.h b/libavformat/au.h
new file mode 100644
index 0000000..a9198f6
--- /dev/null
+++ b/libavformat/au.h
@@ -0,0 +1,39 @@
+/*
+ * AU muxer/demuxer common header
+ *
+ * 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
+ */
+
+#ifndef AVFORMAT_AU_H
+#define AVFORMAT_AU_H
+
+#include "internal.h"
+
+static const AVCodecTag codec_au_tags[] = {
+    { AV_CODEC_ID_PCM_MULAW,  1 },
+    { AV_CODEC_ID_PCM_S8,     2 },
+    { AV_CODEC_ID_PCM_S16BE,  3 },
+    { AV_CODEC_ID_PCM_S24BE,  4 },
+    { AV_CODEC_ID_PCM_S32BE,  5 },
+    { AV_CODEC_ID_PCM_F32BE,  6 },
+    { AV_CODEC_ID_PCM_F64BE,  7 },
+    { AV_CODEC_ID_PCM_ALAW,  27 },
+    { AV_CODEC_ID_NONE,       0 },
+};
+
+
+#endif /* AVFORMAT_AU_H */
diff --git a/libavformat/au.c b/libavformat/audec.c
similarity index 61%
rename from libavformat/au.c
rename to libavformat/audec.c
index e682cbf..76681e9 100644
--- a/libavformat/au.c
+++ b/libavformat/audec.c
@@ -1,5 +1,5 @@
 /*
- * AU muxer and demuxer
+ * AU demuxer
  * Copyright (c) 2001 Fabrice Bellard
  *
  * first version by Francois Revol <[email protected]>
@@ -27,24 +27,8 @@
  * http://www.goice.co.jp/member/mo/formats/au.html
  */
 
-#include "avformat.h"
-#include "internal.h"
-#include "avio_internal.h"
 #include "pcm.h"
-
-static const AVCodecTag codec_au_tags[] = {
-    { AV_CODEC_ID_PCM_MULAW,  1 },
-    { AV_CODEC_ID_PCM_S8,     2 },
-    { AV_CODEC_ID_PCM_S16BE,  3 },
-    { AV_CODEC_ID_PCM_S24BE,  4 },
-    { AV_CODEC_ID_PCM_S32BE,  5 },
-    { AV_CODEC_ID_PCM_F32BE,  6 },
-    { AV_CODEC_ID_PCM_F64BE,  7 },
-    { AV_CODEC_ID_PCM_ALAW,  27 },
-    { AV_CODEC_ID_NONE,       0 },
-};
-
-#if CONFIG_AU_DEMUXER
+#include "au.h"
 
 static int au_probe(AVProbeData *p)
 {
@@ -146,76 +130,3 @@ AVInputFormat ff_au_demuxer = {
     .read_seek   = ff_pcm_read_seek,
     .codec_tag   = (const AVCodecTag* const []) { codec_au_tags, 0 },
 };
-
-#endif /* CONFIG_AU_DEMUXER */
-
-#if CONFIG_AU_MUXER
-
-#include "rawenc.h"
-
-/* if we don't know the size in advance */
-#define AU_UNKNOWN_SIZE ((uint32_t)(~0))
-
-/* AUDIO_FILE header */
-static int put_au_header(AVIOContext *pb, AVCodecContext *enc)
-{
-    if (!enc->codec_tag)
-        return AVERROR(EINVAL);
-
-    ffio_wfourcc(pb, ".snd");                   /* magic number */
-    avio_wb32(pb, 24);                          /* header size */
-    avio_wb32(pb, AU_UNKNOWN_SIZE);             /* data size */
-    avio_wb32(pb, enc->codec_tag);              /* codec ID */
-    avio_wb32(pb, enc->sample_rate);
-    avio_wb32(pb, enc->channels);
-
-    return 0;
-}
-
-static int au_write_header(AVFormatContext *s)
-{
-    AVIOContext *pb = s->pb;
-    int ret;
-
-    s->priv_data = NULL;
-
-    if ((ret = put_au_header(pb, s->streams[0]->codec)) < 0)
-        return ret;
-
-    avio_flush(pb);
-
-    return 0;
-}
-
-static int au_write_trailer(AVFormatContext *s)
-{
-    AVIOContext *pb = s->pb;
-    int64_t file_size;
-
-    if (s->pb->seekable) {
-        /* update file size */
-        file_size = avio_tell(pb);
-        avio_seek(pb, 8, SEEK_SET);
-        avio_wb32(pb, (uint32_t)(file_size - 24));
-        avio_seek(pb, file_size, SEEK_SET);
-        avio_flush(pb);
-    }
-
-    return 0;
-}
-
-AVOutputFormat ff_au_muxer = {
-    .name          = "au",
-    .long_name     = NULL_IF_CONFIG_SMALL("Sun AU"),
-    .mime_type     = "audio/basic",
-    .extensions    = "au",
-    .audio_codec   = AV_CODEC_ID_PCM_S16BE,
-    .video_codec   = AV_CODEC_ID_NONE,
-    .write_header  = au_write_header,
-    .write_packet  = ff_raw_write_packet,
-    .write_trailer = au_write_trailer,
-    .codec_tag     = (const AVCodecTag* const []) { codec_au_tags, 0 },
-    .flags         = AVFMT_NOTIMESTAMPS,
-};
-
-#endif /* CONFIG_AU_MUXER */
diff --git a/libavformat/auenc.c b/libavformat/auenc.c
new file mode 100644
index 0000000..92a7eda
--- /dev/null
+++ b/libavformat/auenc.c
@@ -0,0 +1,97 @@
+/*
+ * AU muxer
+ * Copyright (c) 2001 Fabrice Bellard
+ *
+ * first version by Francois Revol <[email protected]>
+ *
+ * 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
+ */
+
+/*
+ * Reference documents:
+ * http://www.opengroup.org/public/pubs/external/auformat.html
+ * http://www.goice.co.jp/member/mo/formats/au.html
+ */
+
+#include "avio_internal.h"
+#include "rawenc.h"
+#include "au.h"
+
+/* if we don't know the size in advance */
+#define AU_UNKNOWN_SIZE ((uint32_t)(~0))
+
+/* AUDIO_FILE header */
+static int put_au_header(AVIOContext *pb, AVCodecContext *enc)
+{
+    if (!enc->codec_tag)
+        return AVERROR(EINVAL);
+
+    ffio_wfourcc(pb, ".snd");                   /* magic number */
+    avio_wb32(pb, 24);                          /* header size */
+    avio_wb32(pb, AU_UNKNOWN_SIZE);             /* data size */
+    avio_wb32(pb, enc->codec_tag);              /* codec ID */
+    avio_wb32(pb, enc->sample_rate);
+    avio_wb32(pb, enc->channels);
+
+    return 0;
+}
+
+static int au_write_header(AVFormatContext *s)
+{
+    AVIOContext *pb = s->pb;
+    int ret;
+
+    s->priv_data = NULL;
+
+    if ((ret = put_au_header(pb, s->streams[0]->codec)) < 0)
+        return ret;
+
+    avio_flush(pb);
+
+    return 0;
+}
+
+static int au_write_trailer(AVFormatContext *s)
+{
+    AVIOContext *pb = s->pb;
+    int64_t file_size;
+
+    if (s->pb->seekable) {
+        /* update file size */
+        file_size = avio_tell(pb);
+        avio_seek(pb, 8, SEEK_SET);
+        avio_wb32(pb, (uint32_t)(file_size - 24));
+        avio_seek(pb, file_size, SEEK_SET);
+        avio_flush(pb);
+    }
+
+    return 0;
+}
+
+AVOutputFormat ff_au_muxer = {
+    .name          = "au",
+    .long_name     = NULL_IF_CONFIG_SMALL("Sun AU"),
+    .mime_type     = "audio/basic",
+    .extensions    = "au",
+    .audio_codec   = AV_CODEC_ID_PCM_S16BE,
+    .video_codec   = AV_CODEC_ID_NONE,
+    .write_header  = au_write_header,
+    .write_packet  = ff_raw_write_packet,
+    .write_trailer = au_write_trailer,
+    .codec_tag     = (const AVCodecTag* const []) { codec_au_tags, 0 },
+    .flags         = AVFMT_NOTIMESTAMPS,
+};
-- 
1.9.1

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