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fix(ios): use precise time tolerance for thumbnail generation #142

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fix(ios): use precise time tolerance for thumbnail generation #142

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3 changes: 3 additions & 0 deletions ios/CreateThumbnail.m
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,9 @@ - (void) generateThumbImage:(AVURLAsset *)asset atTime:(int)timeStamp maxWidth:(
- (void) generateLocalMediaThumbImage:(AVAsset *)asset atTime:(int)timeStamp completion:(void (^)(UIImage* thumbnail))completion failure:(void (^)(NSError* error))failure {
AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc] initWithAsset:asset];
imageGenerator.appliesPreferredTrackTransform = YES;
// Set precise time tolerance to avoid snapping to keyframes
imageGenerator.requestedTimeToleranceBefore = kCMTimeZero;
imageGenerator.requestedTimeToleranceAfter = kCMTimeZero;
CMTime time = CMTimeMake(timeStamp, 1000);
NSError *error = nil;
CMTime actualTime;
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