[FFmpeg-cvslog] ffplay: add support for displaying rgb images with alpha

[Marton Balint]

ffmpeg | branch: master | Marton Balint <cus at passwd.hu> | Sat Aug  5 22:54:18 2017 +0200| [7004ac5eeb8e0715f8cd06ad2558ea52eacd6fba] | committer: Marton Balint

ffplay: add support for displaying rgb images with alpha

Signed-off-by: Marton Balint <cus at passwd.hu>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7004ac5eeb8e0715f8cd06ad2558ea52eacd6fba
---

 ffplay.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ffplay.c b/ffplay.c
index ee3d1628e8..8174caf4a6 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -957,7 +957,8 @@ static void video_image_display(VideoState *is)
 
     if (!vp->uploaded) {
         int sdl_pix_fmt = vp->frame->format == AV_PIX_FMT_YUV420P ? SDL_PIXELFORMAT_YV12 : SDL_PIXELFORMAT_ARGB8888;
-        if (realloc_texture(&is->vid_texture, sdl_pix_fmt, vp->frame->width, vp->frame->height, SDL_BLENDMODE_NONE, 0) < 0)
+        SDL_BlendMode sdl_blendmode = vp->frame->format == AV_PIX_FMT_YUV420P ? SDL_BLENDMODE_NONE : SDL_BLENDMODE_BLEND;
+        if (realloc_texture(&is->vid_texture, sdl_pix_fmt, vp->frame->width, vp->frame->height, sdl_blendmode, 0) < 0)
             return;
         if (upload_texture(is->vid_texture, vp->frame, &is->img_convert_ctx) < 0)
             return;