//

// KFMP4Demuxer.h

// APIExample

//

// Created by zhaoyongqiang on 2023/6/25.

// Copyright © 2023 Agora Corp. All rights reserved.

//

#import <Foundation/Foundation.h>

#import <AVFoundation/AVFoundation.h>

#import <CoreMedia/CoreMedia.h>

typedef NS_ENUM(NSInteger, KFMediaType) {

KFMediaNone = 0,

KFMediaAudio = 1 << 0, // 仅音频。

KFMediaVideo = 1 << 1, // 仅视频。

KFMediaAV = KFMediaAudio | KFMediaVideo, // 音视频都有。

};

typedef NS_ENUM(NSInteger, KFMP4DemuxerStatus) {

KFMP4DemuxerStatusUnknown = 0,

KFMP4DemuxerStatusRunning = 1,

KFMP4DemuxerStatusFailed = 2,

KFMP4DemuxerStatusCompleted = 3,

KFMP4DemuxerStatusCancelled = 4,

};

@interface KFDemuxerConfig : NSObject

@property (nonatomic, strong) AVAsset *asset; // 待解封装的资源。

@property (nonatomic, assign) KFMediaType demuxerType; // 解封装类型。

@end

@interface KFVideoPacketExtraData : NSObject

@property (nonatomic, strong) NSData *sps;

@property (nonatomic, strong) NSData *pps;

@property (nonatomic, strong) NSData *vps;

@end

@interface KFMP4Demuxer : NSObject

+ (instancetype)new NS_UNAVAILABLE;

- (instancetype)init NS_UNAVAILABLE;

- (instancetype)initWithConfig:(KFDemuxerConfig *)config;

@property (nonatomic, strong, readonly) KFDemuxerConfig *config;

@property (nonatomic, copy) void (^errorCallBack)(NSError *error);

@property (nonatomic, assign, readonly) BOOL hasAudioTrack; // 是否包含音频数据。

@property (nonatomic, assign, readonly) BOOL hasVideoTrack; // 是否包含视频数据。

@property (nonatomic, assign, readonly) CGSize videoSize; // 视频大小。

@property (nonatomic, assign, readonly) CMTime duration; // 媒体时长。

@property (nonatomic, assign, readonly) CMVideoCodecType codecType; // 编码类型。

@property (nonatomic, assign, readonly) KFMP4DemuxerStatus demuxerStatus; // 解封装器状态。

@property (nonatomic, assign, readonly) BOOL audioEOF; // 是否音频结束。

@property (nonatomic, assign, readonly) BOOL videoEOF; // 是否视频结束。

@property (nonatomic, assign, readonly) CGAffineTransform preferredTransform; // 图像的变换信息。比如：视频图像旋转。

@property (nonatomic, copy) void (^dataCallBack)(NSData *data, CMSampleBufferRef sampleBuffer); // 解码完成的数据回调

- (void)startReading; // 开始读取数据解封装。

- (void)cancelReading; // 取消读取。

- (BOOL)hasAudioSampleBuffer; // 是否还有音频数据。

- (CMSampleBufferRef)copyNextAudioSampleBuffer CF_RETURNS_RETAINED; // 拷贝下一份音频采样。

- (BOOL)hasVideoSampleBuffer; // 是否还有视频数据。

- (CMSampleBufferRef)copyNextVideoSampleBuffer CF_RETURNS_RETAINED; // 拷贝下一份视频采样。

@end