Adding ViroKit. Needs AWSCore :(

mobile/ios/ViroKit.framework/Headers/VROVideoTextureCache.h

@@ -0,0 +1,43 @@
+//
+//  VROVideoTextureCache.hpp
+//  ViroRenderer
+//
+//  Created by Raj Advani on 5/19/16.
+//  Copyright © 2016 Viro Media. All rights reserved.
+//
+
+#ifndef VROVideoTextureCache_hpp
+#define VROVideoTextureCache_hpp
+
+#include <stdio.h>
+#include <memory>
+#import <AVFoundation/AVFoundation.h>
+#import <CoreVideo/CVMetalTextureCache.h>
+
+class VROTextureSubstrate;
+
+class VROVideoTextureCache {
+    
+public:
+    
+    virtual ~VROVideoTextureCache() {}
+    
+    /*
+     For converting generic RGB buffers to textures. If sRGB is true, we will treat the buffers
+     as gamma-corrected, converting them to linear when sampled. sRGB should be set to true if using
+     we're using gamma-correction.
+     */
+    virtual std::unique_ptr<VROTextureSubstrate> createTextureSubstrate(CMSampleBufferRef sampleBuffer, bool sRGB) = 0;
+    virtual std::unique_ptr<VROTextureSubstrate> createTextureSubstrate(CVPixelBufferRef pixelBuffer, bool sRGB) = 0;
+    
+    /*
+     Convert a YCbCr pixel buffer into two textures; the first will be the Y texture
+     and the second the CbCr texture.
+     */
+    virtual std::vector<std::unique_ptr<VROTextureSubstrate>> createYCbCrTextureSubstrates(CVPixelBufferRef pixelBuffer) = 0;
+    
+private:
+    
+};
+
+#endif /* VROVideoTextureCache_hpp */