fix: add FFMPEG_ARGS env variable

issue #190

compose.yaml

@@ -11,6 +11,7 @@ services:
       - HTTP_ALLOWED=true # setting this to true is unsafe, only set this to true locally
       - ALLOW_UNAUTHENTICATED=true # allows anyone to use the service without logging in, only set this to true locally
       - AUTO_DELETE_EVERY_N_HOURS=1 # checks every n hours for files older then n hours and deletes them, set to 0 to disable
+      # - FFMPEG_ARGS=-hwaccel vulkan # additional arguments to pass to ffmpeg
       # - WEBROOT=/convertx # the root path of the web interface, leave empty to disable
     ports:
       - 3000:3000

src/converters/ffmpeg.ts

@@ -700,7 +700,9 @@ export async function convert(
     message = "Done: resized to 256x256";
   }
 
-  const command = `ffmpeg -i "${filePath}" ${extra} "${targetPath}"`;
+  console.log(process.env.FFMPEG_ARGS);
+
+  const command = `ffmpeg ${process.env.FFMPEG_ARGS} -i "${filePath}" ${extra} "${targetPath}"`;
 
   return new Promise((resolve, reject) => {
     exec(command, (error, stdout, stderr) => {