vf_pad: add support for a "sar" variable

Also add a "dar" alias for "a", for avoiding confusion with sar/dar.

Stefano Sabatini committed 15 years ago

Commit 0bf02fb1 parent 01151a23 files · +12 −5Browse files

Unified · Split

3 files

 x and y offsets as specified by the @var{x} and @var{y}
 expressions, or NAN if not yet specified
-@item a
+@item dar, a
 input display aspect ratio, same as @var{iw} / @var{ih}
+@item sar
+input sample aspect ratio
 @item hsub, vsub
 horizontal and vertical chroma subsample values. For example for the
 pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.

@@ -30,7 +30,7 @@ · 29 unmodified lines
30		30
31	#define LIBAVFILTER_VERSION_MAJOR 2	31	#define LIBAVFILTER_VERSION_MAJOR 2
32	#define LIBAVFILTER_VERSION_MINOR 24	32	#define LIBAVFILTER_VERSION_MINOR 24
33	#define LIBAVFILTER_VERSION_MICRO 2	33	#define LIBAVFILTER_VERSION_MICRO 3
34		34
35	#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \	35	#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
36	LIBAVFILTER_VERSION_MINOR, \	36	LIBAVFILTER_VERSION_MINOR, \

     "out_h",  "oh",
     "x",
     "y",
-    "a",
+    "a", "dar",
+    "sar",
     "hsub",
     "vsub",
     NULL
     VAR_OUT_H,  VAR_OH,
     VAR_X,
     VAR_Y,
-    VAR_A,
+    VAR_A, VAR_DAR,
+    VAR_SAR,
     VAR_HSUB,
     VAR_VSUB,
     VARS_NB
     var_values[VAR_IN_H]  = var_values[VAR_IH] = inlink->h;
     var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
     var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
-    var_values[VAR_A]     = (float) inlink->w / inlink->h;
+    var_values[VAR_DAR]   = var_values[VAR_A] = (float) inlink->w / inlink->h;
+    var_values[VAR_SAR]   = inlink->sample_aspect_ratio.num ?
+        (float) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
     var_values[VAR_HSUB]  = 1<<pad->hsub;
     var_values[VAR_VSUB]  = 2<<pad->vsub;

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