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| 1 /* | |
| 2 * Copyright 2017 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #import <Foundation/Foundation.h> | |
| 12 | |
| 13 #import <WebRTC/RTCMacros.h> | |
| 14 | |
| 15 @class RTCVideoFrame; | |
| 16 | |
| 17 NS_ASSUME_NONNULL_BEGIN | |
| 18 | |
| 19 /** Represents an encoded frame's type. */ | |
| 20 typedef NS_ENUM(NSUInteger, RTCFrameType) { | |
| 21 EmptyFrame, | |
| 22 VideoFrameKey, | |
| 23 VideoFrameDelta, | |
| 24 }; | |
| 25 | |
| 26 /** Represents an encoded frame. Corresponds to webrtc::EncodedImage. */ | |
| 27 RTC_EXPORT | |
| 28 @interface RTCEncodedImage : NSObject | |
| 29 | |
| 30 @property(nonatomic, retain) NSData *buffer; | |
| 31 @property(nonatomic, assign) int encodedWidth; | |
| 32 @property(nonatomic, assign) int encodedHeight; | |
| 33 @property(nonatomic, assign) uint32_t timeStamp; | |
| 34 @property(nonatomic, assign) long captureTimeMs; | |
| 35 @property(nonatomic, assign) long ntpTimeMs; | |
| 36 @property(nonatomic, assign) BOOL isTimingFrame; | |
| 37 @property(nonatomic, assign) long encodeStartMs; | |
| 38 @property(nonatomic, assign) long encodeFinishMs; | |
| 39 @property(nonatomic, assign) RTCFrameType frameType; | |
| 40 @property(nonatomic, assign) int rotation; | |
| 41 @property(nonatomic, assign) BOOL completeFrame; | |
| 42 @property(nonatomic, retain) NSNumber *qp; | |
| 43 | |
| 44 @end | |
| 45 | |
| 46 /** Information for header. Corresponds to webrtc::RTPFragmentationHeader. */ | |
| 47 RTC_EXPORT | |
| 48 @interface RTCRtpFragmentationHeader : NSObject | |
| 49 | |
| 50 @property(nonatomic, retain) NSArray<NSNumber *> *fragmentationOffset; | |
| 51 @property(nonatomic, retain) NSArray<NSNumber *> *fragmentationLength; | |
| 52 @property(nonatomic, retain) NSArray<NSNumber *> *fragmentationTimeDiff; | |
| 53 @property(nonatomic, retain) NSArray<NSNumber *> *fragmentationPlType; | |
| 54 | |
| 55 @end | |
| 56 | |
| 57 /** Implement this protocol to pass codec specific info from the encoder. | |
| 58 * Corresponds to webrtc::CodecSpecificInfo. | |
| 59 */ | |
| 60 RTC_EXPORT | |
| 61 @protocol RTCCodecSpecificInfo <NSObject> | |
| 62 | |
| 63 @end | |
| 64 | |
| 65 /** Callback block for encoder. */ | |
| 66 typedef void (^RTCVideoEncoderCallback)(RTCEncodedImage *frame, | |
| 67 id<RTCCodecSpecificInfo> info, | |
| 68 RTCRtpFragmentationHeader *header); | |
| 69 | |
| 70 /** Callback block for decoder. */ | |
| 71 typedef void (^RTCVideoDecoderCallback)(RTCVideoFrame *frame); | |
| 72 | |
| 73 /** Settings for encoder. Corresponds to webrtc::VideoCodec. */ | |
| 74 RTC_EXPORT | |
| 75 @interface RTCVideoEncoderSettings : NSObject | |
| 76 | |
| 77 @property(nonatomic, retain) NSString *name; | |
| 78 | |
| 79 @property(nonatomic, assign) unsigned short width; | |
| 80 @property(nonatomic, assign) unsigned short height; | |
| 81 | |
| 82 @property(nonatomic, assign) unsigned int startBitrate; // kilobits/sec. | |
| 83 @property(nonatomic, assign) unsigned int maxBitrate; | |
| 84 @property(nonatomic, assign) unsigned int minBitrate; | |
| 85 @property(nonatomic, assign) unsigned int targetBitrate; | |
| 86 | |
| 87 @property(nonatomic, assign) uint32_t maxFramerate; | |
| 88 | |
| 89 @property(nonatomic, assign) unsigned int qpMax; | |
| 90 | |
| 91 @end | |
| 92 | |
| 93 /** Holds information to identify a codec. Corresponds to cricket::VideoCodec. *
/ | |
| 94 RTC_EXPORT | |
| 95 @interface RTCVideoCodecInfo : NSObject | |
| 96 | |
| 97 - (instancetype)initWithPayload:(int)payload | |
| 98 name:(NSString *)name | |
| 99 parameters:(NSDictionary<NSString *, NSString *> *)paramete
rs; | |
| 100 | |
| 101 @property(nonatomic, readonly) int payload; | |
| 102 @property(nonatomic, readonly) NSString *name; | |
| 103 @property(nonatomic, readonly) NSDictionary<NSString *, NSString *> *parameters; | |
| 104 | |
| 105 @end | |
| 106 | |
| 107 /** Protocol for encoder implementations. */ | |
| 108 RTC_EXPORT | |
| 109 @protocol RTCVideoEncoder <NSObject> | |
| 110 | |
| 111 - (instancetype)initWithCodecInfo:(RTCVideoCodecInfo *)codecInfo; | |
| 112 - (void)setCallback:(RTCVideoEncoderCallback)callback; | |
| 113 - (int)initEncodeWithSettings:(RTCVideoEncoderSettings *)settings numberOfCores:
(int)numberOfCores; | |
| 114 - (int)releaseEncode; | |
| 115 - (int)encode:(RTCVideoFrame *)frame | |
| 116 codecSpecificInfo:(id<RTCCodecSpecificInfo>)info | |
| 117 frameTypes:(NSArray<NSNumber *> *)frameTypes; | |
| 118 - (BOOL)setBitrate:(uint32_t)bitrateKbit framerate:(uint32_t)framerate; | |
| 119 | |
| 120 @end | |
| 121 | |
| 122 /** Protocol for decoder implementations. */ | |
| 123 RTC_EXPORT | |
| 124 @protocol RTCVideoDecoder <NSObject> | |
| 125 | |
| 126 - (void)setCallback:(RTCVideoDecoderCallback)callback; | |
| 127 - (int)initDecodeWithSettings:(RTCVideoEncoderSettings *)settings numberOfCores:
(int)numberOfCores; | |
| 128 - (int)releaseDecode; | |
| 129 - (int)decode:(RTCEncodedImage *)encodedImage | |
| 130 missingFrames:(BOOL)missingFrames | |
| 131 fragmentationHeader:(RTCRtpFragmentationHeader *)fragmentationHeader | |
| 132 codecSpecificInfo:(__nullable id<RTCCodecSpecificInfo>)info | |
| 133 renderTimeMs:(int64_t)renderTimeMs; | |
| 134 | |
| 135 @end | |
| 136 | |
| 137 NS_ASSUME_NONNULL_END | |
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Chromium Code Reviews
Issue 2979973002:
Revert of Injectable Obj-C video codecs (Closed)
