feat(capture): accept SRT/RTMP source params in POST /start

- Accept source_type, source_url, listen, listen_port, stream_key
- Validate: SDI requires device; SRT/RTMP caller requires source_url
- Pass all params through to captureManager.start()
- On stop: if proxyKey is null (network source), include needsProxy flag
  in MAM API registration so worker can generate proxy asynchronously

services/capture/src/routes/capture.js

@@ -64,15 +64,50 @@ router.get('/status', (req, res) => {
 /**
  * POST /start
  * Start a new capture session
- * Body: { project_id, clip_name, device, bin_id? }
+ *
+ * Body (SDI):
+ *   { project_id, clip_name, device, bin_id?, source_type? }
+ *
+ * Body (SRT/RTMP caller):
+ *   { project_id, clip_name, source_type, source_url, bin_id? }
+ *
+ * Body (SRT/RTMP listener):
+ *   { project_id, clip_name, source_type, listen: true, listen_port?, stream_key?, bin_id? }
  */
 router.post('/start', async (req, res) => {
   try {
-    const { project_id, bin_id, clip_name, device } = req.body;
+    const {
+      project_id,
+      bin_id,
+      clip_name,
+      device,
+      source_type = 'sdi',
+      source_url,
+      listen = false,
+      listen_port,
+      stream_key,
+    } = req.body;
 
-    if (!project_id || !clip_name || device === undefined) {
+    if (!project_id || !clip_name) {
       return res.status(400).json({
-        error: 'Missing required fields: project_id, clip_name, device',
+        error: 'Missing required fields: project_id, clip_name',
+      });
+    }
+
+    // Source-specific validation
+    if (source_type === 'sdi') {
+      if (device === undefined || device === null) {
+        return res.status(400).json({ error: 'SDI source requires: device' });
+      }
+    } else if (source_type === 'srt' || source_type === 'rtmp') {
+      if (!listen && !source_url) {
+        return res.status(400).json({
+          error: `${source_type.toUpperCase()} caller mode requires: source_url`,
+        });
+      }
+    } else {
+      return res.status(400).json({
+        error: `Unknown source_type: ${source_type}. Must be sdi, srt, or rtmp`,
       });
     }
 
@@ -81,6 +116,11 @@ router.post('/start', async (req, res) => {
       binId: bin_id || null,
       clipName: clip_name,
       device,
+      sourceType: source_type,
+      sourceUrl: source_url,
+      listen,
+      listenPort: listen_port,
+      streamKey: stream_key,
     });
 
     res.json(session);
@@ -105,7 +145,9 @@ router.post('/stop', async (req, res) => {
 
     const completedSession = await captureManager.stop(session_id);
 
-    // Register asset with mam-api
+    // Register asset with mam-api.
+    // If proxyKey is null (SRT/RTMP source), set needsProxy=true so the
+    // worker generates a proxy from the hires file asynchronously.
     try {
       const mamResponse = await fetch(`${MAM_API_URL}/api/v1/assets`, {
         method: 'POST',
@@ -114,8 +156,10 @@ router.post('/stop', async (req, res) => {
           projectId: completedSession.projectId,
           binId: completedSession.binId,
           clipName: completedSession.clipName,
+          sourceType: completedSession.sourceType,
           hiresKey: completedSession.hiresKey,
           proxyKey: completedSession.proxyKey,
+          needsProxy: completedSession.proxyKey === null,
           duration: completedSession.duration,
           capturedAt: completedSession.startedAt,
         }),