Changeset 5873 for pjproject/trunk/pjmedia/src/pjmedia-videodev/darwin_dev.m

Timestamp:

Sep 3, 2018 7:36:46 AM (6 years ago)

Author:

ming

Message:

Re #2059 (misc): Add log for error info when Darwin capture session fails to start running or encounters an error during runtime.

File:

• pjproject/trunk/pjmedia/src/pjmedia-videodev/darwin_dev.m (modified) (2 diffs)

pjproject/trunk/pjmedia/src/pjmedia-videodev/darwin_dev.m

@@ -523 +523 @@
 #endif
 
+- (void)session_runtime_error:(NSNotification *)notification
+{
+    NSError *error = notification.userInfo[AVCaptureSessionErrorKey];
+    PJ_LOG(3, (THIS_FILE, "Capture session runtime error: %s, %s",
+               [error localizedDescription],
+               [error localizedFailureReason]));
+}
+
 - (void)captureOutput:(AVCaptureOutput *)captureOutput 
                       didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
@@ -865 +873 @@
         [strm->video_output setSampleBufferDelegate:strm->vout_delegate
                             queue:strm->queue];
+
+        /* Add observer to catch notification when the capture session
+         * fails to start running or encounters an error during runtime.
+         */
+        [[NSNotificationCenter defaultCenter] addObserver:strm->vout_delegate
+            selector:@selector(session_runtime_error:)
+            name:AVCaptureSessionRuntimeErrorNotification
+            object:strm->cap_session];
         
         if ([strm->cap_session canAddOutput:strm->video_output]) {