add hardware encoding to ffmpeg, binary choice

tests/ffmpeg.ts

@@ -0,0 +1,65 @@
+import ffmpeg from 'fluent-ffmpeg';
+import ffmpegInstaller from '@ffmpeg-installer/ffmpeg';
+import ffprobeInstaller from '@ffprobe-installer/ffprobe';
+import which from 'which';
+
+const getExecutablePath = (envVar: string, executable: string, installer: { path: string }) => {
+  if (process.env[envVar]) {
+    return process.env[envVar];
+  }
+
+  try {
+    return which.sync(executable);
+  } catch (error) {
+    return installer.path;
+  }
+};
+
+const ffmpegPath = getExecutablePath('EB_FFMPEG_PATH', 'ffmpeg', ffmpegInstaller);
+const ffprobePath = getExecutablePath('EB_FFPROBE_PATH', 'ffprobe', ffprobeInstaller);
+
+console.log(`Using ffmpeg from path: ${ffmpegPath}`);
+console.log(`Using ffprobe from path: ${ffprobePath}`);
+
+ffmpeg.setFfmpegPath(ffmpegPath!);
+ffmpeg.setFfprobePath(ffprobePath!);
+
+export enum EncodingType {
+  CPU = 'libx264',
+  NVIDIA = 'h264_nvenc',
+  AMD = 'h264_vmf',
+  INTEL = 'h264_qsv',
+  APPLE = 'h264_videotoolbox',
+}
+
+export const generateTestVideo = async (encodingType: EncodingType): Promise<void> => {
+  console.log(`Generating test video using ${encodingType}...`);
+
+  const startTime = Date.now();
+
+  const outputOptions = [
+    '-vf', 'scale=-2:720',
+    '-c:v', encodingType,
+  ];
+
+  return new Promise<void>((resolve, reject) => {
+    ffmpeg()
+      .input('test.mp4')
+      .inputFormat('mp4')
+      .outputOptions(outputOptions)
+      .output(`720p-test-${encodingType}.mp4`)
+      .on('end', () => {
+        console.log(`720p copy complete using ${encodingType}, took ${Date.now() - startTime}ms to complete`);
+        resolve();
+      })
+      .on('error', (e) => reject(new Error(e)))
+      .run();
+  });
+};
+
+// Test commands (uncomment to use)
+// generateTestVideo(EncodingType.CPU).catch(console.error);
+// generateTestVideo(EncodingType.AMD).catch(console.error);
+// generateTestVideo(EncodingType.INTEL).catch(console.error);
+// generateTestVideo(EncodingType.NVIDIA).catch(console.error);
+// generateTestVideo(EncodingType.APPLE).catch(console.error);