新增编码器选择

server.js

@@ -65,14 +65,20 @@ app.get('/api/videos', async (req, res) => {
 
 // Endpoint to transcode S3 video streaming to HLS
 app.post('/api/transcode', async (req, res) => {
-    const { key, codec } = req.body;
+    const { key, codec, encoder } = req.body;
 
     if (!key) {
         return res.status(400).json({ error: 'Video key is required' });
     }
 
     const safeCodec = codec === 'h265' ? 'h265' : 'h264';
-    const videoCodec = safeCodec === 'h265' ? 'libx265' : 'libx264';
+    const safeEncoder = ['nvidia', 'intel'].includes(encoder) ? encoder : 'software';
+    const codecMap = {
+        software: { h264: 'libx264', h265: 'libx265' },
+        nvidia: { h264: 'h264_nvenc', h265: 'hevc_nvenc' },
+        intel: { h264: 'h264_qsv', h265: 'hevc_qsv' }
+    };
+    const videoCodec = codecMap[safeEncoder][safeCodec];
 
     try {
         const safeKeySegments = key.split('/').map(segment => segment.replace(/[^a-zA-Z0-9_\-]/g, '_'));