[FFmpeg-cvslog] vf_zscale: Fix alpha destination graph for floating point pixel formats

[Vittorio Giovara]

ffmpeg | branch: master | Vittorio Giovara <vittorio.giovara at gmail.com> | Thu Dec  7 16:32:22 2017 -0500| [bc38c8f4424982617a92d1cefa7fdcb640a80234] | committer: Vittorio Giovara

vf_zscale: Fix alpha destination graph for floating point pixel formats

This was setting the input pixel type instead of the output one,
leading to incorrect data being fed to the library.

Signed-off-by: Vittorio Giovara <vittorio.giovara at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bc38c8f4424982617a92d1cefa7fdcb640a80234
---

 libavfilter/vf_zscale.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_zscale.c b/libavfilter/vf_zscale.c
index 865910bd87..6e1d36cb4c 100644
--- a/libavfilter/vf_zscale.c
+++ b/libavfilter/vf_zscale.c
@@ -615,7 +615,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
             s->alpha_dst_format.width = out->width;
             s->alpha_dst_format.height = out->height;
             s->alpha_dst_format.depth = odesc->comp[0].depth;
-            s->alpha_dst_format.pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
+            s->alpha_dst_format.pixel_type = (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
             s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
 
             zimg_filter_graph_free(s->alpha_graph);