Index: head/multimedia/ffmpeg/files/patch-libavcodec_allcodecs.c
===================================================================
--- head/multimedia/ffmpeg/files/patch-libavcodec_allcodecs.c	(revision 512494)
+++ head/multimedia/ffmpeg/files/patch-libavcodec_allcodecs.c	(revision 512495)
@@ -1,19 +1,20 @@
-- Prefer libdav1d over libaom decoder for AV1 streams
+https://git.ffmpeg.org/gitweb/ffmpeg.git/commitdiff/dc0806dd2588
 
 --- libavcodec/allcodecs.c.orig	2018-11-05 23:22:25 UTC
 +++ libavcodec/allcodecs.c
-@@ -678,13 +678,13 @@ extern AVCodec ff_pcm_mulaw_at_encoder;
+@@ -679,7 +679,6 @@ extern AVCodec ff_pcm_mulaw_at_encoder;
  extern AVCodec ff_pcm_mulaw_at_decoder;
  extern AVCodec ff_qdmc_at_decoder;
  extern AVCodec ff_qdm2_at_decoder;
-+extern AVCodec ff_libdav1d_decoder;
- extern AVCodec ff_libaom_av1_decoder;
+-extern AVCodec ff_libaom_av1_decoder;
  extern AVCodec ff_libaom_av1_encoder;
  extern AVCodec ff_libaribb24_decoder;
  extern AVCodec ff_libcelt_decoder;
- extern AVCodec ff_libcodec2_encoder;
- extern AVCodec ff_libcodec2_decoder;
--extern AVCodec ff_libdav1d_decoder;
- extern AVCodec ff_libdavs2_decoder;
- extern AVCodec ff_libfdk_aac_encoder;
- extern AVCodec ff_libfdk_aac_decoder;
+@@ -738,6 +737,7 @@ extern AVCodec ff_idf_decoder;
+ /* external libraries, that shouldn't be used by default if one of the
+  * above is available */
+ extern AVCodec ff_h263_v4l2m2m_encoder;
++extern AVCodec ff_libaom_av1_decoder;
+ extern AVCodec ff_libopenh264_encoder;
+ extern AVCodec ff_libopenh264_decoder;
+ extern AVCodec ff_h264_amf_encoder;