ios-Pili直播使用和问题总结

1.建议使用cocoapods导入sdk使用，可以参考文档：https://github.com/pili-engineering/PLCameraStreamingKit#%E9%85%8D%E7%BD%AE%E5%B7%A5%E7%A8%8B
2.代码梳理
demo：
https://github.com/pili-engineering/PLCameraStreamingKit/tree/master/Example

2.1 在 AppDelegate.m 中初始化sdk，否则会抛出异常#import <PLStreamingKit/PLStreamingEnv.h>- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    [PLStreamingEnv initEnv];    // Override point for customization after application launch.    return YES;}2.2 导入头文件,使用代理（不要忘记设置代理和初始化数据）#import <PLCameraStreamingKit/PLCameraStreamingKit.h>@interface ViewController ()<PLCameraStreamingSessionDelegate,PLStreamingSendingBufferDelegate>2.3 - (void)viewDidLoad {    [super viewDidLoad];    //初始化串行队列 DISPATCH_QUEUE_SERIAL    self.sessionQueue = dispatch_queue_create("pili.queue.streaming", DISPATCH_QUEUE_SERIAL);  /*   先判断是否授权，switch 根据不同的授权调用相应的方法   未授权，授权后在执行   授权，配置流的相关信息   */ //判断相机、麦克风是否授权    switch ([PLCameraStreamingSession cameraAuthorizationStatus]) {          //授权        case PLAuthorizationStatusAuthorized:            permissionBlock();            break;          //未授权                   case PLAuthorizationStatusNotDetermined: {            [PLCameraStreamingSession requestCameraAccessWithCompletionHandler:^(BOOL granted) {                granted ? permissionBlock() : noAccessBlock();            }];        }            break;        default:            noAccessBlock();            break;    }    //未授权    void (^noAccessBlock)(void) = ^{        //询问是否授权         UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"授权" message:@"是否授权" preferredStyle:UIAlertControllerStyleAlert];        UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];                UIAlertAction *defult = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil];        [alert addAction:cancel];        [alert addAction:defult];        [self presentViewController:alert animated:YES completion:nil];    };    //授权，添加配置信息     void (^permissionBlock)(void) = ^{         //相机采集信息配置           PLVideoCaptureConfiguration *videoCC = [[PLVideoCaptureConfiguration alloc] initWithVideoFrameRate:20 sessionPreset:AVCaptureSessionPresetiFrame1280x720 horizontallyMirrorFrontFacingCamera:YES horizontallyMirrorRearFacingCamera:NO cameraPosition:AVCaptureDevicePositionFront];         //麦克风采集信息配置         PLAudioCaptureConfiguration *audioCC = [PLAudioCaptureConfiguration defaultConfiguration];         //推流设置  视频（即播放的效果）         PLVideoStreamingConfiguration *videoSC = [PLVideoStreamingConfiguration configurationWithVideoSize:CGSizeMake(320, 570) videoQuality:kPLVideoStreamingQualityLow1];                 //推流设置  音频         PLAudioStreamingConfiguration *audioSC = [PLAudioStreamingConfiguration configurationWithAudioQuality:kPLAudioStreamingQualityHigh2]                  //设置摄像头         AVCaptureVideoOrientation orientation = (AVCaptureVideoOrientation)(([[UIDevice currentDevice] orientation] <= UIDeviceOrientationLandscapeRight && [[UIDevice currentDevice] orientation] != UIDeviceOrientationUnknown) ? [[UIDevice currentDevice] orientation]: UIDeviceOrientationPortrait);         //后端获取流的信息（字典格式）         PLStream *stream = [PLStream streamWithJSON:dict];                  //流 初始化         self.streamSession = [[PLCameraStreamingSession alloc]initWithVideoCaptureConfiguration:videoCC audioCaptureConfiguration:audioCC videoStreamingConfiguration:videoSC audioStreamingConfiguration:audioSC stream:stream videoOrientation:orientation];         //代理设置         self.streamSession.delegate = self;         self.streamSession.bufferDelegate = self;                  //添加水印         UIImage *image = [UIImage imageNamed:@"test.jpeg"];         PLFilterHandler fitleHandler = [self.streamSession addWaterMark:image origin:CGPointMake(20, 60)];         //在主线程中设置预览界面         dispatch_async(dispatch_get_main_queue(), ^{             UIView *previewView = self.streamSession.previewView;             //根据枚举值调整预览视图的位置             previewView.autoresizingMask = UIViewAutoresizingFlexibleHeight| UIViewAutoresizingFlexibleWidth;             [self.view insertSubview:previewView atIndex:0];             //缩放设置             self.zoomSlider.minimumValue = 1;             self.zoomSlider.maximumValue = MIN(5, self.streamSession.videoActiveFormat.videoMaxZoomFactor);         });     };}#pragma mark -销毁- (void)dealloc {      dispatch_sync(self.sessionQueue, ^{        [self.streamSession destroy];    });    self.streamSession = nil;    self.sessionQueue = nil;}//停止推流- (void)stopSession {    dispatch_async(self.sessionQueue, ^{        self.keyTime = nil;        [self.streamSession stop];    });}//开始推流- (void)startSession {    self.keyTime = nil;    self.actionBtn.enabled = NO;    dispatch_async(self.sessionQueue, ^{        [self.streamSession startWithCompleted:^(BOOL success) {            dispatch_async(dispatch_get_main_queue(), ^{                self.actionBtn.enabled = YES;            });        }];    });}//通过按钮控制开始或者停止- (IBAction)clickAction:(id)sender {    if (PLStreamStateConnected == self.streamSession.streamState) {        [self stopSession];    } else {        [self startSession];    }}

3.代理和其他的方法可以参考链接：
http://blog.csdn.net/glassy_sky1207/article/details/51852245

4.纯音频推流可以在数据采集和推流是忽略相机参数

5.push URL 原因
1） 请求streamjson用的异步处理，初始化session时数据没有传输过来
2）使用了无鉴权的方式，目前ios推流只支持 static和dynamic 两种鉴权方式

6.出现URL is not authorited ,请工单提供streamjson 的数据

7.首屏秒开的设置的是默认值