From 960cd687732f92737d2dff931348b138330be643 Mon Sep 17 00:00:00 2001
From: Zane van Iperen <zane@zanevaniperen.com>
Date: Sat, 15 May 2021 16:52:25 +1000
Subject: [PATCH] mplayer: fix build failure with ffmpeg 4.4

Backport SVN revision 38199.
---
 pkgs/applications/video/mplayer/default.nix   |  2 ++
 .../mplayer/svn-r38199-ffmpeg44fix.patch      | 22 +++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 pkgs/applications/video/mplayer/svn-r38199-ffmpeg44fix.patch

diff --git a/pkgs/applications/video/mplayer/default.nix b/pkgs/applications/video/mplayer/default.nix
index 0162a999709..b6bfa9d0dcf 100644
--- a/pkgs/applications/video/mplayer/default.nix
+++ b/pkgs/applications/video/mplayer/default.nix
@@ -106,6 +106,8 @@ stdenv.mkDerivation rec {
     rm -rf ffmpeg
   '';
 
+  patches = [ ./svn-r38199-ffmpeg44fix.patch ];
+
   depsBuildBuild = [ buildPackages.stdenv.cc ];
   nativeBuildInputs = [ pkg-config yasm ];
   buildInputs = with lib;
diff --git a/pkgs/applications/video/mplayer/svn-r38199-ffmpeg44fix.patch b/pkgs/applications/video/mplayer/svn-r38199-ffmpeg44fix.patch
new file mode 100644
index 00000000000..4137989fcb5
--- /dev/null
+++ b/pkgs/applications/video/mplayer/svn-r38199-ffmpeg44fix.patch
@@ -0,0 +1,22 @@
+Index: libmpcodecs/ad_spdif.c
+===================================================================
+diff --git a/libmpcodecs/ad_spdif.c b/libmpcodecs/ad_spdif.c
+--- a/libmpcodecs/ad_spdif.c	(revision 38198)
++++ b/libmpcodecs/ad_spdif.c	(revision 38199)
+@@ -298,14 +298,8 @@
+         if (spdif_ctx->header_written)
+             av_write_trailer(lavf_ctx);
+         av_freep(&lavf_ctx->pb);
+-        if (lavf_ctx->streams) {
+-            av_freep(&lavf_ctx->streams[0]->codec);
+-            av_freep(&lavf_ctx->streams[0]->info);
+-            av_freep(&lavf_ctx->streams[0]);
+-        }
+-        av_freep(&lavf_ctx->streams);
+-        av_freep(&lavf_ctx->priv_data);
++        avformat_free_context(lavf_ctx);
++        lavf_ctx = NULL;
+     }
+-    av_freep(&lavf_ctx);
+     av_freep(&spdif_ctx);
+ }