#ifndef LWVideoEncoder_h
#define LWVideoEncoder_h

#import <AVFoundation/AVFoundation.h>
#import <VideoToolbox/VideoToolbox.h>
#import "LWVideoEncoderConfig.h"

typedef NS_ENUM(NSUInteger, LWVideoEncodeStatus) {
    kLWVideoEncodeStatus_Success,
    
    kLWVideoEncodeStatus_Err_Create,
    kLWVideoEncodeStatus_Err_Config,
    kLWVideoEncodeStatus_Err_Encode,
    
    kLWVideoEncodeStatus_Err_NO_Support,
    kLWVideoEncodeStatus_Err_NO_Initialized,
    
    kLWVideoEncodeStatus_Err_Invalid_Input,
};

@protocol LWVideoEncoderDelegate <NSObject>
@required
- (void)onDidEncoded:(OSStatus)status
      sourceFrameRef:(void*)sourceFrameRef
                info:(VTEncodeInfoFlags)infoFlags
        sampleBuffer:(CMSampleBufferRef)sampleBuffer;
@end

@interface LWVideoEncoder : NSObject

@property (strong, readonly, nonatomic) LWVideoEncoderConfig* config;
@property (weak, nonatomic) id<LWVideoEncoderDelegate> delegate;

+ (instancetype)newVideoEncoder:(LWVideoEncoderConfig*)config;

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

- (LWVideoEncodeStatus)encode:(CMSampleBufferRef)sampleBuffer sourceFrameRef:(void*)sourceFrameRef;

- (LWVideoEncodeStatus)reconfig:(LWVideoEncoderConfig*)config;

- (LWVideoEncodeStatus)setOptionWithInt32:(const NSString*)key value:(int32_t)value;

- (LWVideoEncodeStatus)getOptionWithInt32:(const NSString*)key value:(int32_t*)value;

@end

#endif /* LWVideoEncoder_h */