Merge pull request souvik-ghosh#94 from pitch45/frame-accurate-ios

Request frame-accurate image generation on iOS
parsable-bratislavbatinic · Aug 24, 2023 · 529ae3d · 529ae3d
2 parents 0c36691 + 482a1f7
commit 529ae3d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/ios/CreateThumbnail.m b/ios/CreateThumbnail.m
@@ -113,7 +113,9 @@ - (void) cleanDir:(NSString *)path forSpace:(unsigned long long)size {
 - (void) generateThumbImage:(AVURLAsset *)asset atTime:(int)timeStamp completion:(void (^)(UIImage* thumbnail))completion failure:(void (^)(NSError* error))failure {
     AVAssetImageGenerator *generator = [[AVAssetImageGenerator alloc] initWithAsset:asset];
     generator.appliesPreferredTrackTransform = YES;
-    generator.maximumSize = CGSizeMake(512, 512);
+    generator.maximumSize = CGSizeMake(512, 512);    
+    generator.requestedTimeToleranceBefore = CMTimeMake(0, 1000);
+    generator.requestedTimeToleranceAfter = CMTimeMake(0, 1000);
     CMTime time = CMTimeMake(timeStamp, 1000);
     AVAssetImageGeneratorCompletionHandler handler = ^(CMTime timeRequested, CGImageRef image, CMTime timeActual, AVAssetImageGeneratorResult result, NSError *error) {
         if (result == AVAssetImageGeneratorSucceeded) {