//
//  AVConstants.h
//  AVDemo
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

// Video Codec
typedef NS_ENUM(NSInteger, AVVideoCodec) {
    AVVideoCodeH264 = 0,
    AVVideoCodeH265 = 1
};

// Video Resolution
typedef NS_ENUM(NSInteger, AVVideoResolution) {
    AVVideoResolution360p = 0,  // 640x360
    AVVideoResolution480p = 1,  // 854x480
    AVVideoResolution540p = 2,  // 960x540
    AVVideoResolution720p = 3   // 1280x720
};

// Stream Protocol
typedef NS_ENUM(NSInteger, AVStreamProtocol) {
    AVStreamProtocolRTC = 0,
    AVStreamProtocolRTMP = 1
};

// Helper functions
static inline NSString * AVVideoCodecString(AVVideoCodec codec) {
    return codec == AVVideoCodeH264 ? @"H.264" : @"H.265";
}

static inline NSString * AVVideoResolutionString(AVVideoResolution resolution) {
    switch (resolution) {
        case AVVideoResolution360p: return @"360p";
        case AVVideoResolution480p: return @"480p";
        case AVVideoResolution540p: return @"540p";
        case AVVideoResolution720p: return @"720p";
    }
}

static inline CGSize AVVideoResolutionSize(AVVideoResolution resolution) {
    switch (resolution) {
        case AVVideoResolution360p: return CGSizeMake(640, 360);
        case AVVideoResolution480p: return CGSizeMake(854, 480);
        case AVVideoResolution540p: return CGSizeMake(960, 540);
        case AVVideoResolution720p: return CGSizeMake(1280, 720);
    }
}

static inline NSString * AVStreamProtocolString(AVStreamProtocol protocol) {
    return protocol == AVStreamProtocolRTC ? @"RTC" : @"RTMP";
}

// Notification Names
extern NSString * const AVConfigDidChangeNotification;