From ead992a288d3cef220fff76591ff7973f79d8565 Mon Sep 17 00:00:00 2001
From: K900 <me@0upti.me>
Date: Sun, 9 Aug 2026 09:13:43 +0300
Subject: [PATCH] python3Packages.torchcodec: pin ffmpeg_8

---
 .../development/python-modules/torchcodec/default.nix | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/python-modules/torchcodec/default.nix b/pkgs/development/python-modules/torchcodec/default.nix
index 8523ebbe076c..4fad1e12ec0f 100644
--- a/pkgs/development/python-modules/torchcodec/default.nix
+++ b/pkgs/development/python-modules/torchcodec/default.nix
@@ -8,7 +8,8 @@
   pkg-config,
 
   # buildInputs
-  ffmpeg,
+  # FIXME: unpin when upstream supports ffmpeg 9
+  ffmpeg_8,
 
   # build-system
   cmake,
@@ -45,17 +46,17 @@ buildPythonPackage.override { inherit (torch) stdenv; } (finalAttrs: {
       test/test_encoders.py \
       --replace-fail \
         '"ffprobe"' \
-        '"${lib.getExe' ffmpeg "ffprobe"}"'
+        '"${lib.getExe' ffmpeg_8 "ffprobe"}"'
 
     substituteInPlace test/test_encoders.py \
       --replace-fail \
         '"ffmpeg"' \
-        '"${lib.getExe ffmpeg}"'
+        '"${lib.getExe ffmpeg_8}"'
 
     substituteInPlace test/test_transform_ops.py \
       --replace-fail \
         'ffmpeg_cli = "ffmpeg"' \
-        'ffmpeg_cli = "${lib.getExe ffmpeg}"'
+        'ffmpeg_cli = "${lib.getExe ffmpeg_8}"'
   '';
 
   nativeBuildInputs = [
@@ -69,7 +70,7 @@ buildPythonPackage.override { inherit (torch) stdenv; } (finalAttrs: {
   ];
 
   buildInputs = [
-    ffmpeg
+    ffmpeg_8
   ]
   ++ lib.optionals cudaSupport (
     with cudaPackages;