From 4ada49f9dbed6ab1a84cf2d79f0e8b5e549b0b6a Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Sat, 15 Aug 2015 17:28:21 +0200
Subject: [PATCH] ffmpeg: Use the decoders dimensions in
 sub2video_get_blank_frame()

Fixes Ticket4744 part3

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 ffmpeg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ffmpeg.c b/ffmpeg.c
index fd59c3c6e3..d20f56bb80 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -172,8 +172,8 @@ static int sub2video_get_blank_frame(InputStream *ist)
     AVFrame *frame = ist->sub2video.frame;
 
     av_frame_unref(frame);
-    ist->sub2video.frame->width  = ist->sub2video.w;
-    ist->sub2video.frame->height = ist->sub2video.h;
+    ist->sub2video.frame->width  = ist->dec_ctx->width  ? ist->dec_ctx->width  : ist->sub2video.w;
+    ist->sub2video.frame->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
     ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
     if ((ret = av_frame_get_buffer(frame, 32)) < 0)
         return ret;