diff options
| author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-07-02 17:27:31 +0200 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2011-09-28 08:03:24 +0200 |
| commit | 46b29397a658805118e920167dcfe1bf60573e53 (patch) | |
| tree | 3879613b0b5f0eac8784c73ef0234538443fa311 /libavfilter/vf_scale.c | |
| parent | 0ec56d1144fa4ea36950295987bb5f49c9747046 (diff) | |
vf_scale: add a "sar" variable
Also create a "dar" alias for the "a" variable, for avoiding possible
confusion between dar/sar.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavfilter/vf_scale.c')
| -rw-r--r-- | libavfilter/vf_scale.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c index 5217bd07f7..5e7285cda8 100644 --- a/libavfilter/vf_scale.c +++ b/libavfilter/vf_scale.c @@ -38,7 +38,8 @@ static const char *var_names[] = { "in_h", "ih", "out_w", "ow", "out_h", "oh", - "a", + "a", "dar", + "sar", "hsub", "vsub", NULL @@ -52,7 +53,8 @@ enum var_name { VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, - VAR_A, + VAR_A, VAR_DAR, + VAR_SAR, VAR_HSUB, VAR_VSUB, VARS_NB @@ -149,7 +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_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<<av_pix_fmt_descriptors[inlink->format].log2_chroma_w; var_values[VAR_VSUB] = 1<<av_pix_fmt_descriptors[inlink->format].log2_chroma_h; |