From b6b792d4b8964e6827bfb88a8e80befd21a4641e Mon Sep 17 00:00:00 2001
From: Igor Samokhovets <igor@noice.tech>
Date: Tue, 24 Mar 2026 10:57:57 +0100
Subject: [PATCH] `rust-ffmpeg-splitter`: Disable AV1 encoder for Lambda target

Keep AV1 enabled for the regular desktop and server builds, but skip libaom on the Linux arm64 gnu artifact used by Remotion Lambda so the package size stays within AWS limits while tests still assert the expected target-specific behavior.

Made-with: Cursor
---
 Dockerfile-aws     |  2 +-
 compile-av1.mjs    |  9 +++++++--
 compile-ffmpeg.mjs | 12 +++++++++---
 test-ffmpeg.mjs    | 45 +++++++++++++++++++++++++--------------------
 4 files changed, 42 insertions(+), 26 deletions(-)

diff --git a/Dockerfile-aws b/Dockerfile-aws
index f363bf2..07e1846 100644
--- a/Dockerfile-aws
+++ b/Dockerfile-aws
@@ -26,5 +26,5 @@ RUN yum install yasm nasm unzip curl gcc gcc-c++ tar git make ca-certificates pk
 RUN cd app && CFLAGS="$CFLAGS -static-libgcc" CXXFLAGS="$CXXFLAGS -static-libgcc -static-libstdc++" LDFLAGS="$LDFLAGS -static-libgcc -static-libstdc++" node compile-ffmpeg.mjs old-cmake
 RUN source "$HOME/.cargo/env" && cd app && node generate-bindings.mjs
 RUN source "$HOME/.cargo/env" && cd app && node zip.mjs
-RUN source "$HOME/.cargo/env" && cd app && node test-ffmpeg.mjs
+RUN source "$HOME/.cargo/env" && cd app && EXPECT_AV1_ENCODER=0 node test-ffmpeg.mjs
 
diff --git a/compile-av1.mjs b/compile-av1.mjs
index b128194..fc4ba72 100644
--- a/compile-av1.mjs
+++ b/compile-av1.mjs
@@ -179,7 +179,12 @@ const enableLibaom = (isWindows) => {
   });
 };
 
-export const enableAv1 = (isWindows) => {
+export const enableAv1 = ({
+  isWindows,
+  enableEncoder,
+}) => {
   enableDav1d(isWindows);
-  enableLibaom(isWindows);
+  if (enableEncoder) {
+    enableLibaom(isWindows);
+  }
 };
diff --git a/compile-ffmpeg.mjs b/compile-ffmpeg.mjs
index 9e14de3..3e5b8e6 100644
--- a/compile-ffmpeg.mjs
+++ b/compile-ffmpeg.mjs
@@ -122,9 +122,15 @@ if (!existsSync(PREFIX)) {
 const isWindows = process.argv.includes("windows");
 const isMusl = process.argv.includes("musl");
 const isOldCmake = process.argv.includes("old-cmake");
+const isLambdaTarget =
+  process.platform === "linux" &&
+  process.arch === "arm64" &&
+  !isMusl &&
+  !isWindows;
+const shouldEnableAv1Encoder = !isLambdaTarget;
 
 await enableFdkAac(isWindows);
-enableAv1(isWindows);
+enableAv1({ isWindows, enableEncoder: shouldEnableAv1Encoder });
 enableZimg(isWindows);
 enableVpx(isWindows);
 enableX264(isMusl, isWindows);
@@ -216,7 +222,7 @@ execSync(
     "--enable-small",
     "--enable-shared",
     "--enable-libdav1d",
-    "--enable-libaom",
+    shouldEnableAv1Encoder ? "--enable-libaom" : null,
     "--enable-libzimg",
     "--enable-libfdk-aac",
     "--disable-static",
@@ -267,7 +273,7 @@ execSync(
     "--enable-encoder=pcm_s24le",
     "--enable-encoder=libx264",
     "--enable-encoder=libx265",
-    "--enable-encoder=libaom_av1",
+    shouldEnableAv1Encoder ? "--enable-encoder=libaom_av1" : null,
     "--enable-libvpx",
     "--enable-encoder=libvpx_vp8",
     "--enable-encoder=libvpx_vp9",
diff --git a/test-ffmpeg.mjs b/test-ffmpeg.mjs
index adb230a..082c748 100644
--- a/test-ffmpeg.mjs
+++ b/test-ffmpeg.mjs
@@ -21,6 +21,7 @@ const env =
       };
 
 const ffmpegBinary = path.join(process.cwd(), "remotion", "bin", "ffmpeg");
+const shouldHaveAv1Encoder = process.env.EXPECT_AV1_ENCODER !== "0";
 
 const exit1 = spawnSync(ffmpegBinary, ["-buildconf"], {
   env,
@@ -39,7 +40,9 @@ if (encoders.status !== 0) {
   console.log(encoders.stdout.toString("utf8"));
 }
 assert(encoders.status === 0);
-assert(encoders.stdout.toString("utf8").includes("libaom-av1"));
+assert(
+  encoders.stdout.toString("utf8").includes("libaom-av1") === shouldHaveAv1Encoder
+);
 
 const exit2 = spawnSync(
   ffmpegBinary,
@@ -154,23 +157,25 @@ const exit6 = spawnSync(
 );
 assert(exit6.status === 0);
 
-const exit7 = spawnSync(
-  ffmpegBinary,
-  [
-    "-i",
-    "sample.mp4",
-    "-frames:v",
-    "1",
-    "-an",
-    "-c:v",
-    "libaom-av1",
-    "out-test-libaom-av1.mkv",
-    "-y",
-  ],
-  {
-    env,
-    stdio: "inherit",
-  }
-);
-assert(exit7.status === 0);
+if (shouldHaveAv1Encoder) {
+  const exit7 = spawnSync(
+    ffmpegBinary,
+    [
+      "-i",
+      "sample.mp4",
+      "-frames:v",
+      "1",
+      "-an",
+      "-c:v",
+      "libaom-av1",
+      "out-test-libaom-av1.mkv",
+      "-y",
+    ],
+    {
+      env,
+      stdio: "inherit",
+    }
+  );
+  assert(exit7.status === 0);
+}
 console.log("Hooray!");