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/*
* Copyright 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#import <AVFoundation/AVFoundation.h>
#import "RTCMacros.h"
#import "RTCVideoFrameBuffer.h"
NS_ASSUME_NONNULL_BEGIN
/** RTCVideoFrameBuffer containing a CVPixelBufferRef */
RTC_OBJC_EXPORT
@interface RTC_OBJC_TYPE (RTCCVPixelBuffer) : NSObject <RTC_OBJC_TYPE(RTCVideoFrameBuffer)>
@property(nonatomic, readonly) CVPixelBufferRef pixelBuffer;
@property(nonatomic, readonly) int cropX;
@property(nonatomic, readonly) int cropY;
@property(nonatomic, readonly) int cropWidth;
@property(nonatomic, readonly) int cropHeight;
+ (NSSet<NSNumber *> *)supportedPixelFormats;
- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer;
- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
adaptedWidth:(int)adaptedWidth
adaptedHeight:(int)adaptedHeight
cropWidth:(int)cropWidth
cropHeight:(int)cropHeight
cropX:(int)cropX
cropY:(int)cropY;
- (BOOL)requiresCropping;
- (BOOL)requiresScalingToWidth:(int)width height:(int)height;
- (int)bufferSizeForCroppingAndScalingToWidth:(int)width height:(int)height;
/** The minimum size of the `tmpBuffer` must be the number of bytes returned from the
* bufferSizeForCroppingAndScalingToWidth:height: method.
* If that size is 0, the `tmpBuffer` may be nil.
*/
- (BOOL)cropAndScaleTo:(CVPixelBufferRef)outputPixelBuffer
withTempBuffer:(nullable uint8_t *)tmpBuffer;
@end
NS_ASSUME_NONNULL_END
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