Bugfix camera streams (#5306)

* fix mjpeg streams

* fix trow error on close by frontend

* fix ffmpeg

homeassistant/components/camera/ffmpeg.py

@@ -84,9 +84,15 @@ class FFmpegCamera(Camera):
                 if not data:
                     break
                 response.write(data)
+
+        except asyncio.CancelledError:
+            _LOGGER.debug("Close stream by browser.")
+            response = None
+
         finally:
-            self.hass.async_add_job(stream.close())
-            yield from response.write_eof()
+            yield from stream.close()
+            if response is not None:
+                yield from response.write_eof()
 
     @property
     def name(self):

homeassistant/components/camera/mjpeg.py

@@ -124,9 +124,13 @@ class MjpegCamera(Camera):
         except asyncio.TimeoutError:
             raise HTTPGatewayTimeout()
 
+        except asyncio.CancelledError:
+            _LOGGER.debug("Close stream by browser.")
+            response = None
+
         finally:
             if stream is not None:
-                yield from stream.close()
+                stream.close()
             if response is not None:
                 yield from response.write_eof()
 

homeassistant/components/camera/synology.py

@@ -276,9 +276,13 @@ class SynologyCamera(Camera):
             _LOGGER.exception("Error on %s", streaming_url)
             raise HTTPGatewayTimeout()
 
+        except asyncio.CancelledError:
+            _LOGGER.debug("Close stream by browser.")
+            response = None
+
         finally:
             if stream is not None:
-                self.hass.async_add_job(stream.release())
+                stream.close()
             if response is not None:
                 yield from response.write_eof()