Merge remote-tracking branch 'qatar/master'

* qatar/master: (21 commits)
  ipmovie: do not read audio packets before the codec is known
  truemotion2: check size before GetBitContext initialisation
  avio: Only do implicit network initialization for network protocols
  avio: Add an URLProtocol flag for indicating that a protocol uses network
  adpcm: ADPCM Electronic Arts has always two channels
  matroskadec: Fix a bug where a pointer was cached to an array that might later move due to a realloc()
  fate: Add missing reference file from 9b4767e4.
  mov: Support MOV_CH_LAYOUT_USE_DESCRIPTIONS for labeled descriptions.
  4xm: Prevent buffer overreads.
  mjpegdec: parse RSTn to prevent skipping other data in mjpeg_decode_scan
  vp3: add fate test for non-zero last coefficient
  vp3: fix streams with non-zero last coefficient
  swscale: remove unused U/V arguments from yuv2rgb_write().
  timer: K&R formatting cosmetics
  lavf: cosmetics, reformat av_read_frame().
  lavf: refactor av_read_frame() to make it easier to understand.
  Report an error if pitch_lag is zero in AMR-NB decoder.
  Revert "4xm: Prevent buffer overreads."
  4xm: Prevent buffer overreads.
  4xm: pass the correct remaining buffer size to decode_i2_frame().
  ...

Conflicts:
	libavcodec/4xm.c
	libavcodec/mjpegdec.c
	libavcodec/truemotion2.c
	libavformat/ipmovie.c
	libavformat/mov_chan.c

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

1 files changed, 14 insertions, 2 deletions

diff --git a/libavformat/mov_chan.c b/libavformat/mov_chan.c
index a8e6b94c51..5728ebd898 100644
--- a/libavformat/mov_chan.c
+++ b/libavformat/mov_chan.c
@@ -428,8 +428,7 @@ uint64_t ff_mov_get_channel_layout(uint32_t tag, uint32_t bitmap)
     int i, channels;
     const struct MovChannelLayoutMap *layout_map;
 
-    /* handle the use of the channel descriptions */
-    /* TODO: map MOV channel labels to FFmpeg channels */
+    /* use ff_mov_get_channel_label() to build a layout instead */
     if (tag == MOV_CH_LAYOUT_USE_DESCRIPTIONS)
         return 0;
 
@@ -451,6 +450,19 @@ uint64_t ff_mov_get_channel_layout(uint32_t tag, uint32_t bitmap)
     return layout_map[i].layout;
 }
 
+uint32_t ff_mov_get_channel_label(uint32_t label)
+{
+    if (label == 0)
+        return 0;
+    if (label <= 18)
+        return 1U << (label - 1);
+    if (label == 38)
+        return AV_CH_STEREO_LEFT;
+    if (label == 39)
+        return AV_CH_STEREO_RIGHT;
+    return 0;
+}
+
 uint32_t ff_mov_get_channel_layout_tag(enum CodecID codec_id,
                                        uint64_t channel_layout,
                                        uint32_t *bitmap)