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fe9d8178df
This is a reland of 4ea50c2b42
Original change's description:
> Add unit tests for RTCCVPixelBuffer and ObjCVideoTrackSource.
>
> This CL also fixes a couple of bugs found in the toI420 method for
> RTCCVPixelBuffers backed by RGB CVPixelBuffers.
>
> Bug: webrtc:9007
> Change-Id: I19ab8177f4b124a503cfda9f0166bd960f668982
> Reviewed-on: https://webrtc-review.googlesource.com/64940
> Commit-Queue: Anders Carlsson <andersc@webrtc.org>
> Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#22656}
Bug: webrtc:9007
Change-Id: I2a787c64f8d23ffc4ef2419fc258d965f8a9480b
Reviewed-on: https://webrtc-review.googlesource.com/66341
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22706}
111 lines
3.7 KiB
Objective-C
111 lines
3.7 KiB
Objective-C
/*
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* Copyright 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import <AVFoundation/AVFoundation.h>
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#import <WebRTC/RTCMacros.h>
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NS_ASSUME_NONNULL_BEGIN
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@protocol RTCI420Buffer;
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// RTCVideoFrameBuffer is an ObjectiveC version of webrtc::VideoFrameBuffer.
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RTC_EXPORT
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@protocol RTCVideoFrameBuffer <NSObject>
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@property(nonatomic, readonly) int width;
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@property(nonatomic, readonly) int height;
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- (id<RTCI420Buffer>)toI420;
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@end
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/** Protocol for RTCVideoFrameBuffers containing YUV planar data. */
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@protocol RTCYUVPlanarBuffer <RTCVideoFrameBuffer>
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@property(nonatomic, readonly) int chromaWidth;
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@property(nonatomic, readonly) int chromaHeight;
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@property(nonatomic, readonly) const uint8_t *dataY;
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@property(nonatomic, readonly) const uint8_t *dataU;
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@property(nonatomic, readonly) const uint8_t *dataV;
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@property(nonatomic, readonly) int strideY;
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@property(nonatomic, readonly) int strideU;
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@property(nonatomic, readonly) int strideV;
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- (instancetype)initWithWidth:(int)width height:(int)height;
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- (instancetype)initWithWidth:(int)width
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height:(int)height
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strideY:(int)strideY
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strideU:(int)strideU
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strideV:(int)strideV;
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@end
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/** Extension of the YUV planar data buffer with mutable data access */
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@protocol RTCMutableYUVPlanarBuffer <RTCYUVPlanarBuffer>
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@property(nonatomic, readonly) uint8_t *mutableDataY;
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@property(nonatomic, readonly) uint8_t *mutableDataU;
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@property(nonatomic, readonly) uint8_t *mutableDataV;
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@end
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/** Protocol for RTCYUVPlanarBuffers containing I420 data */
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@protocol RTCI420Buffer <RTCYUVPlanarBuffer>
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@end
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/** Extension of the I420 buffer with mutable data access */
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@protocol RTCMutableI420Buffer <RTCI420Buffer, RTCMutableYUVPlanarBuffer>
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@end
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/** RTCVideoFrameBuffer containing a CVPixelBufferRef */
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RTC_EXPORT
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@interface RTCCVPixelBuffer : NSObject <RTCVideoFrameBuffer>
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@property(nonatomic, readonly) CVPixelBufferRef pixelBuffer;
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@property(nonatomic, readonly) int cropX;
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@property(nonatomic, readonly) int cropY;
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@property(nonatomic, readonly) int cropWidth;
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@property(nonatomic, readonly) int cropHeight;
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+ (NSSet<NSNumber *> *)supportedPixelFormats;
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- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer;
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- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
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adaptedWidth:(int)adaptedWidth
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adaptedHeight:(int)adaptedHeight
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cropWidth:(int)cropWidth
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cropHeight:(int)cropHeight
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cropX:(int)cropX
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cropY:(int)cropY;
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- (BOOL)requiresCropping;
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- (BOOL)requiresScalingToWidth:(int)width height:(int)height;
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- (int)bufferSizeForCroppingAndScalingToWidth:(int)width height:(int)height;
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/** The minimum size of the |tmpBuffer| must be the number of bytes returned from the
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* bufferSizeForCroppingAndScalingToWidth:height: method.
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* If that size is 0, the |tmpBuffer| may be nil.
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*/
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- (BOOL)cropAndScaleTo:(CVPixelBufferRef)outputPixelBuffer
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withTempBuffer:(nullable uint8_t *)tmpBuffer;
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@end
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/** RTCI420Buffer implements the RTCI420Buffer protocol */
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RTC_EXPORT
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@interface RTCI420Buffer : NSObject <RTCI420Buffer>
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@end
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/** Mutable version of RTCI420Buffer */
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RTC_EXPORT
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@interface RTCMutableI420Buffer : RTCI420Buffer <RTCMutableI420Buffer>
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@end
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NS_ASSUME_NONNULL_END
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