mlpdec: support major sync headers with optional extension blocks

[ffmpeg] / libavcodec / ac3.h

diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h
index 542f79d711de65fb7f9b767d93afaecf9254b422..871640b8c8200b0560a94953bcf5a3ac338dfdcb 100644 (file)
--- a/libavcodec/ac3.h
+++ b/libavcodec/ac3.h
@@ -67,7 +67,8 @@
 #define AC3_RENAME(x)           x ## _fixed
 #define AC3_NORM(norm)          (1<<24)/(norm)
 #define AC3_MUL(a,b)            ((((int64_t) (a)) * (b))>>12)
-#define AC3_RANGE(x)            (x)
+#define AC3_RANGE(x)            (x|((x&128)<<1))
+#define AC3_HEAVY_RANGE(x)      (x<<1)
 #define AC3_DYNAMIC_RANGE(x)    (x)
 #define AC3_SPX_BLEND(x)        (x)
 #define AC3_DYNAMIC_RANGE1      0
@@ -86,6 +87,7 @@
 #define AC3_NORM(norm)          (1.0f/(norm))
 #define AC3_MUL(a,b)            ((a) * (b))
 #define AC3_RANGE(x)            (dynamic_range_tab[(x)])
+#define AC3_HEAVY_RANGE(x)      (heavy_dynamic_range_tab[(x)])
 #define AC3_DYNAMIC_RANGE(x)    (powf(x,  s->drc_scale))
 #define AC3_SPX_BLEND(x)        (x)* (1.0f/32)
 #define AC3_DYNAMIC_RANGE1      1.0f