屏幕录制

/// 屏幕共享状态回调
/// @param channel 事件来源频道实例
/// @param status 状态码
- (void)engineChannel:(RTCEngineChannel *)channel onScreenRecordStatus:(RTCScreenRecordStatus)status {
    
    /// 提示操作信息
    NSString *toastStr = @"屏幕共享连接错误";
    switch (status) {
        case RTCScreenRecordStatusError:
            toastStr = @"屏幕共享连接错误";
            break;
        case RTCScreenRecordStatusStop:
            toastStr = @"屏幕共享已经停止";
            break;
        case RTCScreenRecordStatusStart:
            toastStr = @"屏幕共享已经开始";
            break;
        default:
            break;
    }
    [FWToastBridge showToastAction:toastStr];
    SGLOG(@"%@", toastStr);
}

@interface SampleHandler : NSObject <RTCScreenDelegate>
/// 根据需要，在此处添加以下任何回调函数。

/// 录屏完成回调
/// @param engine 回调实例
/// @param reason 结束原因
- (void)broadcastFinished:(RTCEngineKit *)engine reason:(NSString *)reason {

    /// 声明描述
    NSString *describe = @"屏幕录制已结束";
    /// 构建Error信息
    NSError *error = [NSError errorWithDomain:NSStringFromClass(self.class) code:0 userInfo:@{NSLocalizedFailureReasonErrorKey : describe}];
    /// 完成屏幕录制
    [self finishBroadcastWithError:error];
}

- (void)broadcastStartedWithSetupInfo:(NSDictionary<NSString *,NSObject *> *)setupInfo {
    
    /// User has requested to start the broadcast. Setup info from the UI extension can be supplied but optional.
    [[RTCEngineKit sharedEngine] broadcastStartedWithAppGroup:@"Application Group Identifier" delegate:self];
}

- (void)processSampleBuffer:(CMSampleBufferRef)sampleBuffer withType:(RPSampleBufferType)sampleBufferType {
    
    /// 媒体数据(音视频)发送
    [[RTCEngineKit sharedEngine] sendSampleBuffer:sampleBuffer withType:sampleBufferType];
}

/// 当前频道发布屏幕共享流(应在收到 RTCScreenRecordStatusStart 回调之后调用)
[self.channel publishScreenRecord:YES];

/// 当前频道停止屏幕共享流
[self.channel publishScreenRecord:NO];