vf_pad/scale: use double precision for aspect ratios.

Fixes Bug 203.

CC:libav-stable@libav.org
(cherry picked from commit ba04177eeb690ba4e93ec30fc8eb02f5319f844b)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>

diff --git a/libavfilter/vf_pad.c b/libavfilter/vf_pad.c
index 8f583da16d90077ccca114cba410b39749c13376..0b60d5b4f9c1d206b2e5a82d1970b2b0b92d03c5 100644 (file)
--- a/libavfilter/vf_pad.c
+++ b/libavfilter/vf_pad.c
@@ -156,7 +156,7 @@ static int config_input(AVFilterLink *inlink)
     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_A]     = (double) inlink->w / inlink->h;
     var_values[VAR_HSUB]  = 1<<pad->hsub;
     var_values[VAR_VSUB]  = 1<<pad->vsub;
 

diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index dd2f7e18a5cc09d4c4acf01d0079904f4b2b63e8..ec69d7b89fcedaa0e7e1492804892fc7149e4932 100644 (file)
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -151,9 +151,9 @@ static int config_props(AVFilterLink *outlink)
     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_DAR]   = var_values[VAR_A]  = (double) 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;
+        (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
     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;