From 291f3825f423ad01d347b85e7928f4f3fba05b7c Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Mon, 13 May 2019 13:33:12 +0200
Subject: [PATCH] ffmpeg: fix rare "bad src image pointers" after seek

Fixes #391
---
 panda/src/ffmpeg/ffmpegVideoCursor.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/panda/src/ffmpeg/ffmpegVideoCursor.cxx b/panda/src/ffmpeg/ffmpegVideoCursor.cxx
index fa5789b6c4..23314561e9 100644
--- a/panda/src/ffmpeg/ffmpegVideoCursor.cxx
+++ b/panda/src/ffmpeg/ffmpegVideoCursor.cxx
@@ -755,7 +755,9 @@ do_poll() {
       PT(FfmpegBuffer) frame = do_alloc_frame();
       nassertr(frame != nullptr, false);
       _lock.release();
-      advance_to_frame(seek_frame);
+      if (seek_frame != _begin_frame) {
+        advance_to_frame(seek_frame);
+      }
       if (_frame_ready) {
         export_frame(frame);
         _lock.acquire();