[FFmpeg-cvslog] avfilter/scale: store frame change eval

[Gyan Doshi]

ffmpeg | branch: master | Gyan Doshi <ffmpeg at gyani.pro> | Sun Dec  8 16:01:42 2019 +0530| [c21462d42e92cb62195e65d87ca732b4d6866eee] | committer: Gyan Doshi

avfilter/scale: store frame change eval

Better readability and allows reuse

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c21462d42e92cb62195e65d87ca732b4d6866eee
---

 libavfilter/vf_scale.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index 81b22075c3..6bda76bc99 100644
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -398,15 +398,19 @@ static int scale_frame(AVFilterLink *link, AVFrame *in, AVFrame **frame_out)
     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format);
     char buf[32];
     int in_range;
+    int frame_changed;
 
     *frame_out = NULL;
     if (in->colorspace == AVCOL_SPC_YCGCO)
         av_log(link->dst, AV_LOG_WARNING, "Detected unsupported YCgCo colorspace.\n");
 
-    if (  in->width  != link->w
-       || in->height != link->h
-       || in->format != link->format
-       || in->sample_aspect_ratio.den != link->sample_aspect_ratio.den || in->sample_aspect_ratio.num != link->sample_aspect_ratio.num) {
+    frame_changed = in->width  != link->w ||
+                    in->height != link->h ||
+                    in->format != link->format ||
+                    in->sample_aspect_ratio.den != link->sample_aspect_ratio.den ||
+                    in->sample_aspect_ratio.num != link->sample_aspect_ratio.num;
+
+    if (frame_changed) {
         int ret;
 
         if (scale->eval_mode == EVAL_MODE_INIT) {