Read channel layout atom in mov files.

libavformat/mov.c

@@ -2180,6 +2180,15 @@ static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     return 0;
 }
 
+static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+    if (atom.size < 16)
+        return AVERROR_INVALIDDATA;
+    avio_skip(pb, 4);
+    ff_mov_read_chan(c->fc, atom.size - 4, c->fc->streams[0]->codec);
+    return 0;
+}
+
 static const MOVParseTableEntry mov_default_parse_table[] = {
 { MKTAG('a','v','s','s'), mov_read_extradata },
 { MKTAG('c','h','p','l'), mov_read_chpl },
@@ -2233,6 +2242,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
 { MKTAG('c','m','o','v'), mov_read_cmov },
+{ MKTAG('c','h','a','n'), mov_read_chan },
 { 0, NULL }
 };