api/stream: split types.js into proxy.js and ffmpeg.js

api/src/stream/ffmpeg.js

@@ -1,12 +1,11 @@
 import ffmpeg from "ffmpeg-static";
 import { spawn } from "child_process";
-import { Agent, request } from "undici";
 import { create as contentDisposition } from "content-disposition-header";
 
 import { env } from "../config.js";
 import { destroyInternalStream } from "./manage.js";
 import { hlsExceptions } from "../processing/service-config.js";
-import { getHeaders, closeRequest, closeResponse, pipe, estimateTunnelLength, estimateAudioMultiplier } from "./shared.js";
+import { closeResponse, pipe, estimateTunnelLength, estimateAudioMultiplier } from "./shared.js";
 
 const metadataTags = [
     "album",
@@ -55,44 +54,6 @@ const getCommand = (args) => {
     return [ffmpeg, args]
 }
 
-const defaultAgent = new Agent();
-
-const proxy = async (streamInfo, res) => {
-    const abortController = new AbortController();
-    const shutdown = () => (
-        closeRequest(abortController),
-        closeResponse(res),
-        destroyInternalStream(streamInfo.urls)
-    );
-
-    try {
-        res.setHeader('Cross-Origin-Resource-Policy', 'cross-origin');
-        res.setHeader('Content-disposition', contentDisposition(streamInfo.filename));
-
-        const { body: stream, headers, statusCode } = await request(streamInfo.urls, {
-            headers: {
-                ...getHeaders(streamInfo.service),
-                Range: streamInfo.range
-            },
-            signal: abortController.signal,
-            maxRedirections: 16,
-            dispatcher: defaultAgent,
-        });
-
-        res.status(statusCode);
-
-        for (const headerName of ['accept-ranges', 'content-type', 'content-length']) {
-            if (headers[headerName]) {
-                res.setHeader(headerName, headers[headerName]);
-            }
-        }
-
-        pipe(stream, res, shutdown);
-    } catch {
-        shutdown();
-    }
-}
-
 const render = async (res, streamInfo, ffargs, multiplier) => {
     let process;
     const urls = Array.isArray(streamInfo.urls) ? streamInfo.urls : [streamInfo.urls];
@@ -245,7 +206,6 @@ const convertGif = async (streamInfo, res) => {
 }
 
 export default {
-    proxy,
     remux,
     convertAudio,
     convertGif,

api/src/stream/proxy.js

@@ -0,0 +1,43 @@
+import { Agent, request } from "undici";
+import { create as contentDisposition } from "content-disposition-header";
+
+import { destroyInternalStream } from "./manage.js";
+import { getHeaders, closeRequest, closeResponse, pipe } from "./shared.js";
+
+const defaultAgent = new Agent();
+
+export default async function (streamInfo, res) {
+    const abortController = new AbortController();
+    const shutdown = () => (
+        closeRequest(abortController),
+        closeResponse(res),
+        destroyInternalStream(streamInfo.urls)
+    );
+
+    try {
+        res.setHeader('Cross-Origin-Resource-Policy', 'cross-origin');
+        res.setHeader('Content-disposition', contentDisposition(streamInfo.filename));
+
+        const { body: stream, headers, statusCode } = await request(streamInfo.urls, {
+            headers: {
+                ...getHeaders(streamInfo.service),
+                Range: streamInfo.range
+            },
+            signal: abortController.signal,
+            maxRedirections: 16,
+            dispatcher: defaultAgent,
+        });
+
+        res.status(statusCode);
+
+        for (const headerName of ['accept-ranges', 'content-type', 'content-length']) {
+            if (headers[headerName]) {
+                res.setHeader(headerName, headers[headerName]);
+            }
+        }
+
+        pipe(stream, res, shutdown);
+    } catch {
+        shutdown();
+    }
+}

api/src/stream/stream.js

@@ -1,4 +1,5 @@
-import stream from "./types.js";
+import proxy from "./proxy.js";
+import ffmpeg from "./ffmpeg.js";
 
 import { closeResponse } from "./shared.js";
 import { internalStream } from "./internal.js";
@@ -7,7 +8,7 @@ export default async function(res, streamInfo) {
     try {
         switch (streamInfo.type) {
             case "proxy":
-                return await stream.proxy(streamInfo, res);
+                return await proxy(streamInfo, res);
 
             case "internal":
                 return await internalStream(streamInfo.data, res);
@@ -15,13 +16,13 @@ export default async function(res, streamInfo) {
             case "merge":
             case "remux":
             case "mute":
-                return await stream.remux(streamInfo, res);
+                return await ffmpeg.remux(streamInfo, res);
 
             case "audio":
-                return await stream.convertAudio(streamInfo, res);
+                return await ffmpeg.convertAudio(streamInfo, res);
 
             case "gif":
-                return await stream.convertGif(streamInfo, res);
+                return await ffmpeg.convertGif(streamInfo, res);
         }
 
         closeResponse(res);