Moving src/webrtc into src/.
In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
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sdk/objc/Framework/Headers/WebRTC/RTCVideoCodec.h
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184
sdk/objc/Framework/Headers/WebRTC/RTCVideoCodec.h
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/*
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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 <Foundation/Foundation.h>
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#import <WebRTC/RTCMacros.h>
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#import <WebRTC/RTCVideoFrame.h>
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NS_ASSUME_NONNULL_BEGIN
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/** Represents an encoded frame's type. */
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typedef NS_ENUM(NSUInteger, RTCFrameType) {
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RTCFrameTypeEmptyFrame = 0,
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RTCFrameTypeAudioFrameSpeech = 1,
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RTCFrameTypeAudioFrameCN = 2,
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RTCFrameTypeVideoFrameKey = 3,
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RTCFrameTypeVideoFrameDelta = 4,
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};
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typedef NS_ENUM(NSUInteger, RTCVideoContentType) {
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RTCVideoContentTypeUnspecified,
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RTCVideoContentTypeScreenshare,
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};
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/** Represents an encoded frame. Corresponds to webrtc::EncodedImage. */
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RTC_EXPORT
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@interface RTCEncodedImage : NSObject
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@property(nonatomic, strong) NSData *buffer;
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@property(nonatomic, assign) int32_t encodedWidth;
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@property(nonatomic, assign) int32_t encodedHeight;
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@property(nonatomic, assign) uint32_t timeStamp;
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@property(nonatomic, assign) int64_t captureTimeMs;
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@property(nonatomic, assign) int64_t ntpTimeMs;
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@property(nonatomic, assign) uint8_t flags;
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@property(nonatomic, assign) int64_t encodeStartMs;
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@property(nonatomic, assign) int64_t encodeFinishMs;
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@property(nonatomic, assign) RTCFrameType frameType;
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@property(nonatomic, assign) RTCVideoRotation rotation;
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@property(nonatomic, assign) BOOL completeFrame;
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@property(nonatomic, strong) NSNumber *qp;
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@property(nonatomic, assign) RTCVideoContentType contentType;
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@end
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/** Information for header. Corresponds to webrtc::RTPFragmentationHeader. */
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RTC_EXPORT
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@interface RTCRtpFragmentationHeader : NSObject
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@property(nonatomic, strong) NSArray<NSNumber *> *fragmentationOffset;
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@property(nonatomic, strong) NSArray<NSNumber *> *fragmentationLength;
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@property(nonatomic, strong) NSArray<NSNumber *> *fragmentationTimeDiff;
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@property(nonatomic, strong) NSArray<NSNumber *> *fragmentationPlType;
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@end
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/** Implement this protocol to pass codec specific info from the encoder.
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* Corresponds to webrtc::CodecSpecificInfo.
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*/
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RTC_EXPORT
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@protocol RTCCodecSpecificInfo <NSObject>
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@end
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/** Class for H264 specific config. */
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typedef NS_ENUM(NSUInteger, RTCH264PacketizationMode) {
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RTCH264PacketizationModeNonInterleaved = 0, // Mode 1 - STAP-A, FU-A is allowed
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RTCH264PacketizationModeSingleNalUnit // Mode 0 - only single NALU allowed
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};
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RTC_EXPORT
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@interface RTCCodecSpecificInfoH264 : NSObject<RTCCodecSpecificInfo>
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@property(nonatomic, assign) RTCH264PacketizationMode packetizationMode;
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@end
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/** Callback block for encoder. */
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typedef BOOL (^RTCVideoEncoderCallback)(RTCEncodedImage *frame,
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id<RTCCodecSpecificInfo> info,
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RTCRtpFragmentationHeader *header);
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/** Callback block for decoder. */
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typedef void (^RTCVideoDecoderCallback)(RTCVideoFrame *frame);
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typedef NS_ENUM(NSUInteger, RTCVideoCodecMode) {
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RTCVideoCodecModeRealtimeVideo,
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RTCVideoCodecModeScreensharing,
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};
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/** Holds information to identify a codec. Corresponds to cricket::VideoCodec. */
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RTC_EXPORT
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@interface RTCVideoCodecInfo : NSObject
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- (instancetype)init NS_UNAVAILABLE;
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- (instancetype)initWithName:(NSString *)name
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parameters:(nullable NSDictionary<NSString *, NSString *> *)parameters
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NS_DESIGNATED_INITIALIZER;
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@property(nonatomic, readonly) NSInteger payload;
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@property(nonatomic, readonly) NSString *name;
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@property(nonatomic, readonly) NSDictionary<NSString *, NSString *> *parameters;
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@end
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/** Settings for encoder. Corresponds to webrtc::VideoCodec. */
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RTC_EXPORT
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@interface RTCVideoEncoderSettings : NSObject
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@property(nonatomic, strong) NSString *name;
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@property(nonatomic, assign) unsigned short width;
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@property(nonatomic, assign) unsigned short height;
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@property(nonatomic, assign) unsigned int startBitrate; // kilobits/sec.
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@property(nonatomic, assign) unsigned int maxBitrate;
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@property(nonatomic, assign) unsigned int minBitrate;
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@property(nonatomic, assign) unsigned int targetBitrate;
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@property(nonatomic, assign) uint32_t maxFramerate;
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@property(nonatomic, assign) unsigned int qpMax;
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@property(nonatomic, assign) RTCVideoCodecMode mode;
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@end
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/** QP thresholds for encoder. Corresponds to webrtc::VideoEncoder::QpThresholds. */
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RTC_EXPORT
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@interface RTCVideoEncoderQpThresholds : NSObject
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- (instancetype)initWithThresholdsLow:(NSInteger)low high:(NSInteger)high;
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@property(nonatomic, readonly) NSInteger low;
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@property(nonatomic, readonly) NSInteger high;
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@end
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/** Protocol for encoder implementations. */
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RTC_EXPORT
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@protocol RTCVideoEncoder <NSObject>
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- (void)setCallback:(RTCVideoEncoderCallback)callback;
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- (NSInteger)startEncodeWithSettings:(RTCVideoEncoderSettings *)settings
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numberOfCores:(int)numberOfCores;
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- (NSInteger)releaseEncoder;
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- (NSInteger)encode:(RTCVideoFrame *)frame
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codecSpecificInfo:(id<RTCCodecSpecificInfo>)info
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frameTypes:(NSArray<NSNumber *> *)frameTypes;
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- (int)setBitrate:(uint32_t)bitrateKbit framerate:(uint32_t)framerate;
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- (NSString *)implementationName;
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/** Returns QP scaling settings for encoder. The quality scaler adjusts the resolution in order to
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* keep the QP from the encoded images within the given range. Returning nil from this function
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* disables quality scaling. */
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- (RTCVideoEncoderQpThresholds *)scalingSettings;
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@end
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/** Protocol for decoder implementations. */
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RTC_EXPORT
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@protocol RTCVideoDecoder <NSObject>
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- (void)setCallback:(RTCVideoDecoderCallback)callback;
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- (NSInteger)startDecodeWithSettings:(RTCVideoEncoderSettings *)settings
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numberOfCores:(int)numberOfCores;
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- (NSInteger)releaseDecoder;
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- (NSInteger)decode:(RTCEncodedImage *)encodedImage
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missingFrames:(BOOL)missingFrames
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fragmentationHeader:(RTCRtpFragmentationHeader *)fragmentationHeader
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codecSpecificInfo:(__nullable id<RTCCodecSpecificInfo>)info
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renderTimeMs:(int64_t)renderTimeMs;
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- (NSString *)implementationName;
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@end
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NS_ASSUME_NONNULL_END
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