Merge pull request BradLarson#1486 from liaomiao/master

added processDataForTimestamp to GPUImageRawDataInput
xuvw · Mar 30, 2014 · 58708f8 · 58708f8
2 parents 9cc022b + 3209992
commit 58708f8
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diff --git a/framework/Source/GPUImageRawDataInput.h b/framework/Source/GPUImageRawDataInput.h
@@ -36,6 +36,7 @@ typedef enum {
 // Image rendering
 - (void)updateDataFromBytes:(GLubyte *)bytesToUpload size:(CGSize)imageSize;
 - (void)processData;
+- (void)processDataForTimestamp:(CMTime)frameTime;
 - (CGSize)outputImageSize;
 
 @end
diff --git a/framework/Source/GPUImageRawDataInput.m b/framework/Source/GPUImageRawDataInput.m
@@ -107,6 +107,30 @@ - (void)processData;
 	});
 }
 
+- (void)processDataForTimestamp:(CMTime)frameTime;
+{
+	if (dispatch_semaphore_wait(dataUpdateSemaphore, DISPATCH_TIME_NOW) != 0)
+    {
+        return;
+    }
+
+	runAsynchronouslyOnVideoProcessingQueue(^{
+
+		CGSize pixelSizeOfImage = [self outputImageSize];
+
+		for (id<GPUImageInput> currentTarget in targets)
+		{
+			NSInteger indexOfObject = [targets indexOfObject:currentTarget];
+			NSInteger textureIndexOfTarget = [[targetTextureIndices objectAtIndex:indexOfObject] integerValue];
+
+			[currentTarget setInputSize:pixelSizeOfImage atIndex:textureIndexOfTarget];
+			[currentTarget newFrameReadyAtTime:frameTime atIndex:textureIndexOfTarget];
+		}
+
+		dispatch_semaphore_signal(dataUpdateSemaphore);
+	});
+}
+
 - (CGSize)outputImageSize;
 {
     return uploadedImageSize;