Merge remote-tracking branch 'qatar/master'

* qatar/master:
  isom: sort and pretty-print codec_movaudio_tags[]
  isom: remove pointless comments in codec_movaudio_tags[]
  isom: remove commented-out tag for vorbis
  movenc: write 'chan' tag for AC-3 in MOV
  mov: add support for reading and writing the 'chan' tag
  audioconvert: add some additional channel and channel layout macros
  audioconvert: change 7.1 "wide" layout to use side surround channels
  movenc: simplify handling of pcm vs. adpcm vs. other compressed codecs
  doc: update documentation to use avconv
  doc: update demuxers section
  doc: extend external library coverage
  doc: split platform specific information
  doc: port the git-howto to texinfo
  doc: provide fallback css and customize @float
  doc: document fate in a texinfo
  doxy: change hue value to match our green

Conflicts:
	doc/fate.txt
	doc/ffserver.texi
	doc/general.texi
	doc/muxers.texi
	doc/protocols.texi
	doc/t2h.init
	libavformat/isom.c
	libavformat/mov.c
	libavutil/avutil.h
	tests/ref/acodec/pcm_s16be
	tests/ref/acodec/pcm_s24be
	tests/ref/acodec/pcm_s32be
	tests/ref/acodec/pcm_s8
	tests/ref/lavf/mov

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 48 insertions, 2 deletions

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 0bb7362179..12af19ed50 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -37,6 +37,7 @@
 #include "isom.h"
 #include "libavcodec/get_bits.h"
 #include "id3v1.h"
+#include "mov_chan.h"
 
 #if CONFIG_ZLIB
 #include <zlib.h>
@@ -568,6 +569,51 @@ static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     return 0;
 }
 
+static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+    AVStream *st;
+    uint8_t version;
+    uint32_t flags, layout_tag, bitmap, num_descr;
+
+    if (c->fc->nb_streams < 1)
+        return 0;
+    st = c->fc->streams[c->fc->nb_streams-1];
+
+    if (atom.size < 16)
+        return 0;
+
+    version = avio_r8(pb);
+    flags   = avio_rb24(pb);
+
+    layout_tag = avio_rb32(pb);
+    bitmap     = avio_rb32(pb);
+    num_descr  = avio_rb32(pb);
+
+    if (atom.size < 16ULL + num_descr * 20ULL)
+        return 0;
+
+    av_dlog(c->fc, "chan: size=%ld version=%u flags=%u layout=%u bitmap=%u num_descr=%u\n",
+            atom.size, version, flags, layout_tag, bitmap, num_descr);
+
+#if 0
+    /* TODO: use the channel descriptions if the layout tag is 0 */
+    int i;
+    for (i = 0; i < num_descr; i++) {
+        uint32_t label, cflags;
+        float coords[3];
+        label     = avio_rb32(pb);          // mChannelLabel
+        cflags    = avio_rb32(pb);          // mChannelFlags
+        AV_WN32(&coords[0], avio_rl32(pb)); // mCoordinates[0]
+        AV_WN32(&coords[1], avio_rl32(pb)); // mCoordinates[1]
+        AV_WN32(&coords[2], avio_rl32(pb)); // mCoordinates[2]
+    }
+#endif
+
+    st->codec->channel_layout = ff_mov_get_channel_layout(layout_tag, bitmap);
+
+    return 0;
+}
+
 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     AVStream *st;
@@ -2346,7 +2392,7 @@ static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     return 0;
 }
 
-static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+static int mov_read_chan2(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     if (atom.size < 16)
         return 0;
@@ -2409,7 +2455,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
 { MKTAG('w','f','e','x'), mov_read_wfex },
 { MKTAG('c','m','o','v'), mov_read_cmov },
-{ MKTAG('c','h','a','n'), mov_read_chan },
+{ MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
 { 0, NULL }
 };