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.
11 years ago · 9c0e4b3395
parent dc971acf4a
commit 9c0e4b3395
1 changed files with 1 additions and 1 deletions
--- 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 {