[FFmpeg-cvslog] Also set the MLP/TrueHD channel layout in the decoder.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Tue Apr 19 03:18:08 2011 +0200| [d3f126df4bf97d464ca34b7071283f692af9f541] | committer: Carl Eugen Hoyos

Also set the MLP/TrueHD channel layout in the decoder.

Applications might not use the parser,

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d3f126df4bf97d464ca34b7071283f692af9f541
---

 libavcodec/mlpdec.c |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/libavcodec/mlpdec.c b/libavcodec/mlpdec.c
index 044df5b..7b3bd71 100644
--- a/libavcodec/mlpdec.c
+++ b/libavcodec/mlpdec.c
@@ -329,6 +329,23 @@ static int read_major_sync(MLPDecodeContext *m, GetBitContext *gb)
     for (substr = 0; substr < MAX_SUBSTREAMS; substr++)
         m->substream[substr].restart_seen = 0;
 
+    if (mh.stream_type == 0xbb) {
+        /* MLP stream */
+        m->avctx->channel_layout = ff_mlp_layout[mh.channels_mlp];
+    } else { /* mh.stream_type == 0xba */
+        /* TrueHD stream */
+        if (mh.channels_thd_stream2) {
+            m->avctx->channel_layout = ff_truehd_layout(mh.channels_thd_stream2);
+        } else {
+            m->avctx->channel_layout = ff_truehd_layout(mh.channels_thd_stream1);
+        }
+        if (m->avctx->channels &&
+            av_get_channel_layout_nb_channels(m->avctx->channel_layout) != m->avctx->channels) {
+            m->avctx->channel_layout = 0;
+            av_log_ask_for_sample(m->avctx, "Unknown channel layout.");
+        }
+    }
+
     m->needs_reordering = mh.channels_mlp >= 18 && mh.channels_mlp <= 20;
 
     return 0;