From db712e31e29e44c8a3ac7a0aca8e9d91be3a0a24 Mon Sep 17 00:00:00 2001
From: sabade-omkar <112235933+sabade-omkar@users.noreply.github.com>
Date: Thu, 9 Nov 2023 19:47:09 +0530
Subject: [PATCH 1/2] Fix: start graph for the case where the input sourceMode
 is set to video.

---
 .../examples/ios/common/CommonViewController.mm    | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/mediapipe/examples/ios/common/CommonViewController.mm b/mediapipe/examples/ios/common/CommonViewController.mm
index f6c47eacf..dd020562f 100644
--- a/mediapipe/examples/ios/common/CommonViewController.mm
+++ b/mediapipe/examples/ios/common/CommonViewController.mm
@@ -113,7 +113,7 @@ static const char* kVideoQueueLabel = "com.google.mediapipe.example.videoQueue";
       self.videoSource = [[MPPPlayerInputSource alloc] initWithAVAsset:video];
       [self.videoSource setDelegate:self queue:self.videoQueue];
       dispatch_async(self.videoQueue, ^{
-        [self.videoSource start];
+        [self startGraphAndVideo];
       });
       break;
     }
@@ -149,6 +149,18 @@ static const char* kVideoQueueLabel = "com.google.mediapipe.example.videoQueue";
   }
 }
 
+- (void)startGraphAndVideo {
+    NSError* error;
+    if (![self.mediapipeGraph startWithError:&error]) {
+      NSLog(@"Failed to start graph: %@", error);
+    }
+    else if (![self.mediapipeGraph waitUntilIdleWithError:&error]) {
+      NSLog(@"Failed to complete graph initial run: %@", error);
+    }
+
+    [self.videoSource start];
+}
+
 - (void)startGraphAndCamera {
   // Start running self.mediapipeGraph.
   NSError* error;

From 5ada0efd237917e2286880856ad86e6ed7a792a5 Mon Sep 17 00:00:00 2001
From: sabade-omkar <112235933+sabade-omkar@users.noreply.github.com>
Date: Tue, 5 Dec 2023 00:09:49 +0530
Subject: [PATCH 2/2] refactor: move dispatch block to startGraphAndVideo

---
 mediapipe/examples/ios/common/CommonViewController.mm | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mediapipe/examples/ios/common/CommonViewController.mm b/mediapipe/examples/ios/common/CommonViewController.mm
index dd020562f..d804483c4 100644
--- a/mediapipe/examples/ios/common/CommonViewController.mm
+++ b/mediapipe/examples/ios/common/CommonViewController.mm
@@ -112,9 +112,8 @@ static const char* kVideoQueueLabel = "com.google.mediapipe.example.videoQueue";
                                                                      withExtension:@"mov"]];
       self.videoSource = [[MPPPlayerInputSource alloc] initWithAVAsset:video];
       [self.videoSource setDelegate:self queue:self.videoQueue];
-      dispatch_async(self.videoQueue, ^{
-        [self startGraphAndVideo];
-      });
+      self.noCameraLabel.hidden = YES;
+      [self startGraphAndVideo];
       break;
     }
     case MediaPipeDemoSourceCamera: {
@@ -157,8 +156,9 @@ static const char* kVideoQueueLabel = "com.google.mediapipe.example.videoQueue";
     else if (![self.mediapipeGraph waitUntilIdleWithError:&error]) {
       NSLog(@"Failed to complete graph initial run: %@", error);
     }
-
-    [self.videoSource start];
+    dispatch_async(self.videoQueue, ^{
+        [self.videoSource start];
+    });
 }
 
 - (void)startGraphAndCamera {