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] 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;