Index: head/graphics/openimageio/files/patch-src_ffmpeg.imageio_ffmpeginput.cpp
===================================================================
--- head/graphics/openimageio/files/patch-src_ffmpeg.imageio_ffmpeginput.cpp	(revision 468201)
+++ head/graphics/openimageio/files/patch-src_ffmpeg.imageio_ffmpeginput.cpp	(revision 468202)
@@ -1,20 +1,20 @@
-https://github.com/OpenImageIO/oiio/pull/1926
+https://github.com/OpenImageIO/oiio/commit/810a0235837d
 
 --- src/ffmpeg.imageio/ffmpeginput.cpp.orig	2017-08-31 04:36:04 UTC
 +++ src/ffmpeg.imageio/ffmpeginput.cpp
 @@ -124,6 +124,15 @@ inline int receive_frame(AVCodecContext *avctx, AVFram
  }
  #endif
  
 +
 +// Changes for ffmpeg 4.0
 +#define USE_FFMPEG_4_0 (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(58, 18, 100))
 +
 +#if USE_FFMPEG_4_0
 +#  define CODEC_CAP_DELAY AV_CODEC_CAP_DELAY
 +#endif
 +
 +
  #include <boost/thread/once.hpp>
  
  #include "OpenImageIO/imageio.h"