[FFmpeg-cvslog] ac3: update AC3PreferredStereoDownmixMode.

[Tim Walker]

ffmpeg | branch: master | Tim Walker <tdskywalker at gmail.com> | Sat Feb 15 17:12:21 2014 +0000| [9c0e4b3395cad79c560d03d2a94595d89e017885] | committer: Tim Walker

ac3: update AC3PreferredStereoDownmixMode.

'11b' is reserved in the A/52 specification,
but newer encoders use it to indicate a Dolby
Pro Logic II compatible Lt/Rt downmix.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9c0e4b3395cad79c560d03d2a94595d89e017885
---

 libavcodec/ac3.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h
index fa290d3..f2cb6c3 100644
--- a/libavcodec/ac3.h
+++ b/libavcodec/ac3.h
@@ -109,7 +109,7 @@ typedef enum AC3PreferredStereoDownmixMode {
     AC3_DMIXMOD_NOTINDICATED = 0,
     AC3_DMIXMOD_LTRT,
     AC3_DMIXMOD_LORO,
-    AC3_DMIXMOD_RESERVED
+    AC3_DMIXMOD_DPLII // reserved value in A/52, but used by encoders to indicate DPL2
 } AC3PreferredStereoDownmixMode;
 
 typedef struct AC3BitAllocParameters {