install ffmpeg in docker file

Dockerfile

@@ -2,6 +2,10 @@ FROM node:20-slim
 
 WORKDIR /app
 
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends ffmpeg \
+  && rm -rf /var/lib/apt/lists/*
+
 COPY package.json package-lock.json ./
 RUN npm ci --omit=dev
 

doc/pushhg.md

@@ -0,0 +1,2 @@
+#facepush
+git push -u origin main --force-with-lease

src/services/audioConversionService.js

@@ -22,7 +22,9 @@ function runFfmpeg(inputPath, outputPath, outputArgs) {
       stderr += chunk.toString();
     });
 
-    child.on("error", reject);
+    child.on("error", (error) => {
+      reject(new HttpError(400, "Failed to convert audio to mp3.", error.message));
+    });
     child.on("close", (code) => {
       if (code === 0) {
         resolve();
@@ -91,15 +93,20 @@ export function createAudioConversionService({ fetchImpl = fetch, maxAudioDownlo
     const outputPath = path.join(tempDir, "output.mp3");
 
     try {
-      console.log(`convert audio: ${normalizedInputFormat}->mp3`);
+      console.log(`audio conversion started: format=${normalizedInputFormat}, target=mp3`);
       await fs.writeFile(inputPath, audioBuffer);
       await runFfmpeg(inputPath, outputPath, ffmpegOutputArgs());
       const convertedBuffer = await fs.readFile(outputPath);
+      console.log(`audio conversion successful: format=${normalizedInputFormat}->mp3`);
 
       return {
         data: convertedBuffer.toString("base64"),
         format: "mp3"
       };
+    } catch (error) {
+      const detail = error instanceof Error ? error.message : String(error);
+      console.error(`audio conversion failed: format=${normalizedInputFormat}, target=mp3, error=${detail}`);
+      throw error;
     } finally {
       await fs.rm(tempDir, { force: true, recursive: true });
     }