x and y offsets as specified by the @var{x} and @var{y}
expressions, or NAN if not yet specified
-@item dar, a
-input display aspect ratio, same as @var{iw} / @var{ih}
+@item a
+same as @var{iw} / @var{ih}
@item sar
input sample aspect ratio
+@item dar
+input display aspect ratio, it is the same as (@var{iw} / @var{ih}) * @var{sar}
+
@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.
@item ow, oh
same as @var{out_w} and @var{out_h}
-@item dar, a
-input display aspect ratio, same as @var{iw} / @var{ih}
+@item a
+same as @var{iw} / @var{ih}
@item sar
input sample aspect ratio
+@item dar
+input display aspect ratio, it is the same as (@var{iw} / @var{ih}) * @var{sar}
+
@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.
#define LIBAVFILTER_VERSION_MAJOR 2
#define LIBAVFILTER_VERSION_MINOR 27
-#define LIBAVFILTER_VERSION_MICRO 3
+#define LIBAVFILTER_VERSION_MICRO 4
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \
"out_h", "oh",
"x",
"y",
- "a", "dar",
+ "a",
"sar",
+ "dar",
"hsub",
"vsub",
NULL
VAR_OUT_H, VAR_OH,
VAR_X,
VAR_Y,
- VAR_A, VAR_DAR,
+ VAR_A,
VAR_SAR,
+ VAR_DAR,
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_DAR] = var_values[VAR_A] = (float) inlink->w / inlink->h;
+ 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_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
var_values[VAR_HSUB] = 1<<pad->hsub;
var_values[VAR_VSUB] = 1<<pad->vsub;
"in_h", "ih",
"out_w", "ow",
"out_h", "oh",
- "a", "dar",
+ "a",
"sar",
+ "dar",
"hsub",
"vsub",
NULL
VAR_IN_H, VAR_IH,
VAR_OUT_W, VAR_OW,
VAR_OUT_H, VAR_OH,
- VAR_A, VAR_DAR,
+ VAR_A,
VAR_SAR,
+ VAR_DAR,
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_DAR] = var_values[VAR_A] = (float) inlink->w / inlink->h;
+ 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_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
var_values[VAR_HSUB] = 1<<av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
var_values[VAR_VSUB] = 1<<av_pix_fmt_descriptors[inlink->format].log2_chroma_h;