From 791409d5e56c387b9bac7df7e467070a44e774df Mon Sep 17 00:00:00 2001
From: Blake Blackshear <blakeb@blakeshome.com>
Date: Tue, 25 Feb 2020 20:37:12 -0600
Subject: [PATCH] add a few print statements for debugging

---
 frigate/video.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/frigate/video.py b/frigate/video.py
index 5fba8e810..707786bc2 100755
--- a/frigate/video.py
+++ b/frigate/video.py
@@ -180,7 +180,12 @@ def track_camera(name, config, ffmpeg_global_config, global_objects_config, dete
         avg_wait = (avg_wait*99+duration)/100
 
         if not frame_bytes:
-            break
+            rc = ffmpeg_process.poll()
+            if rc is not None:
+                print(f"{name}: ffmpeg_process exited unexpectedly with {rc}")
+                break
+            else:
+                print(f"{name}: ffmpeg_process is still running but didnt return any bytes")
 
         # limit frame rate
         frame_num += 1
@@ -353,3 +358,5 @@ def track_camera(name, config, ffmpeg_global_config, global_objects_config, dete
         plasma_client.put(frame, plasma.ObjectID(object_id))
         # add to the queue
         detected_objects_queue.put((name, frame_time, object_tracker.tracked_objects))
+
+    print(f"{name}: exiting subprocess")
\ No newline at end of file