From e47436066458df65cb57bc82ac843433e6ace057 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Silva?= <andrerfosilva@gmail.com>
Date: Fri, 31 Dec 2021 15:52:04 +0000
Subject: [PATCH 1/2] ffmpeg: enable libzimg

this is needed for the zscale video filter (http://underpop.online.fr/f/ffmpeg/help/zscale.htm.gz)
---
 pkgs/development/libraries/ffmpeg/generic.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/ffmpeg/generic.nix b/pkgs/development/libraries/ffmpeg/generic.nix
index 876910da6d25..2382dd64bcb7 100644
--- a/pkgs/development/libraries/ffmpeg/generic.nix
+++ b/pkgs/development/libraries/ffmpeg/generic.nix
@@ -1,7 +1,7 @@
 { lib, stdenv, buildPackages, fetchurl, pkg-config, addOpenGLRunpath, perl, texinfo, yasm
 , alsa-lib, bzip2, fontconfig, freetype, gnutls, libiconv, lame, libass, libogg
 , libssh, libtheora, libva, libdrm, libvorbis, libvpx, xz, libpulseaudio, soxr
-, x264, x265, xvidcore, zlib, libopus, speex, nv-codec-headers, dav1d
+, x264, x265, xvidcore, zimg, zlib, libopus, speex, nv-codec-headers, dav1d
 , srt ? null
 , openglSupport ? false, libGLU ? null, libGL ? null
 , libmfxSupport ? false, intel-media-sdk ? null
@@ -152,6 +152,7 @@ stdenv.mkDerivation rec {
       (ifMinVer "1.2" "--enable-libsoxr")
       "--enable-libx264"
       "--enable-libxvid"
+      "--enable-libzimg"
       "--enable-zlib"
       (ifMinVer "2.8" "--enable-libopus")
       "--enable-libspeex"
@@ -174,7 +175,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     bzip2 fontconfig freetype gnutls libiconv lame libass libogg libssh libtheora
-    libvorbis xz soxr x264 x265 xvidcore zlib libopus speex srt nv-codec-headers
+    libvorbis xz soxr x264 x265 xvidcore zimg zlib libopus speex srt nv-codec-headers
   ] ++ optionals openglSupport [ libGL libGLU ]
     ++ optional libmfxSupport intel-media-sdk
     ++ optional libaomSupport libaom

From ca7077c8eb76917a64add99c4ff566be0e94dc6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Silva?= <andrerfosilva@gmail.com>
Date: Fri, 31 Dec 2021 15:53:05 +0000
Subject: [PATCH 2/2] ffmpeg-full: allow building with libzimg support

---
 pkgs/development/libraries/ffmpeg-full/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/ffmpeg-full/default.nix b/pkgs/development/libraries/ffmpeg-full/default.nix
index 77bd473485b0..e4a5d908d263 100644
--- a/pkgs/development/libraries/ffmpeg-full/default.nix
+++ b/pkgs/development/libraries/ffmpeg-full/default.nix
@@ -132,6 +132,7 @@
 , xavs ? null # AVS encoder
 , xvidcore ? null # Xvid encoder, native encoder exists
 , zeromq4 ? null # Message passing
+, zimg ? null
 , zlib ? null
 , vulkan-loader ? null
 , glslang ? null
@@ -403,6 +404,7 @@ stdenv.mkDerivation rec {
     (enableFeature (xavs != null && gplLicensing) "libxavs")
     (enableFeature (xvidcore != null && gplLicensing) "libxvid")
     (enableFeature (zeromq4 != null) "libzmq")
+    (enableFeature (zimg != null) "libzimg")
     (enableFeature (zlib != null) "zlib")
     (enableFeature (isLinux && vulkan-loader != null) "vulkan")
     (enableFeature (isLinux && vulkan-loader != null && glslang != null) "libglslang")
@@ -431,7 +433,7 @@ stdenv.mkDerivation rec {
     libogg libopus librsvg libssh libtheora libvdpau libvorbis libvpx libwebp libX11
     libxcb libXv libXext xz openal openjpeg libpulseaudio rav1e svt-av1 rtmpdump opencore-amr
     samba SDL2 soxr speex srt vid-stab vo-amrwbenc x264 x265 xavs xvidcore
-    zeromq4 zlib
+    zeromq4 zimg zlib
   ] ++ optionals openglExtlib [ libGL libGLU ]
     ++ optionals nonfreeLicensing [ fdk_aac openssl ]
     ++ optional ((isLinux || isFreeBSD) && libva != null) libva