使用凭证方式下载playAuth，没有回调，也没有错误信息

[WuChuanRong]

根据文档写的 ///: 获取凭证，进行下载设置

• (void)startDownloadWithCourseId:(NSString *)courseId CatalogId:(NSString *)catalogId { CWJWeakSelf(self) [[BCAliPlayerManager sharedInstance] getAliVedioPlayAuthWithCourseId:courseId CatalogId:catalogId SuccessBlock:^(BCAlivcPlayAuthModel * _Nonnull model) { CWJStrongSelf(self) AVPVidAuthSource *authSource = [[AVPVidAuthSource alloc] init]; self.authSource = authSource; authSource.vid = model.medias; authSource.playAuth = model.resource; authSource.region = @"cn-shanghai"; authSource.playConfig = @"PlayerVersion=4.7.2";

    ///: 设置下载源
    AliMediaDownloader *downloader = [[AliMediaDownloader alloc] init];
  
    downloader.enableLog = YES;
    [downloader setSaveDirectory:self.downLoadPath];
    [downloader setDelegate:self];
  
    [downloader prepareWithPlayAuth:authSource];
  

  } FailureBlock:^(NSString * _Nonnull errorMsg) {

  }]; }

#pragma mark AMDDelegate ///: 准备成功 -(void)onPrepared:(AliMediaDownloader *)downloader mediaInfo:(AVPMediaInfo *)info {

NSArray<AVPTrackInfo*>* tracks = info.tracks;
//比如：下载第一个TrackInfo
[downloader selectTrack:[tracks objectAtIndex:0].trackIndex];
NSLog(@"***** 视频下载，准备成功 **** ： %@",[tracks objectAtIndex:0].vodPlayUrl);
//更新下载源
[downloader updateWithPlayAuth:self.authSource];
//开始下载
[downloader start];

}

-(void)onError:(AliMediaDownloader *)downloader errorModel:(AVPErrorModel *)errorModel { NSLog(@"error code : %lu msg : %@", (unsigned long)errorModel.code, errorModel.message);

}

-(void)onDownloadingProgress:(AliMediaDownloader *)downloader percentage:(int)percent { NSLog(@"~~~~~~~~~~~~~~~~~~%d",percent);

}

-(void)onProcessingProgress:(AliMediaDownloader *)downloader percentage:(int)percent { NSLog(@"onProcessingProgress:%d", percent); } ///MARK: 下载完成 -(void)onCompletion:(AliMediaDownloader *)downloader { NSLog(@"下载完成"); ///: 下载成功/失败后，释放下载器

}

---

控制台输出的日志： 11-29 17:51:42.010 8999 0x1f0a32 D [12182066] [Downloader]: ---> prepare vidAuthSource = 0x16dd062f8 11-29 17:51:42.011 8999 0x1f0a32 D [12182066] []: RequestUrlFactory, CQSString=AccessKeyId=STS.NU9Djas1iRcTBVL7a5n4p3QTc&Action=GetVideoConfig&AuthInfo=%7B%22CI%22%3A%220iUC7w0QY9O32qvzpHBlX3ipmOdCVR20dc0VQWqVGJcrMMLeCSN2Cv%2FrIMZdouPunpkegrp4iXTB%5Cr%5CnPBXSrGU0KA%3D%3D%5Cr%5Cn%22%2C%22Caller%22%3A%22Iy3rUdHlenH%2FsQa%2Bk1QEdQ%3D%3D%5Cr%5Cn%22%2C%22ExpireTime%22%3A%222019-11-29T09%3A53%3A41Z%22%2C%22MediaId%22%3A%2275263c255aa845f394df543bb65d9946%22%2C%22PlayDomain%22%3A%22schoolvod.zhi20.com%22%2C%22Signature%22%3A%22wIswb6JaLexrIo1oi9QydYLqH%2Bo%3D%22%7D&Format=JSON&SecurityToken=CAIS1wJ1q6Ft5B2yfSjIr5aMD9DVnu5I5aG%2FQHD902FgYrtc3JT%2FgTz2IHlPe3FhAOoev%2Fk%2FmW9U7foclrspE84cGRGaPI5o6p1GzQSiboyZBm1AMz9B2vOfAmG2J0PRL6awCryLsbq%2FF96pb1fb7CwRpZLxaTSlWXG8LJSNkuQJR98LXw6%2BHwEkY8lRKllNpdMiMXLAFPCjNXyQnG3cXmVlpjR9hW54wqO5zMyTiHzbkEao8usctonrC4W4b6sIOYtkAe%2Bx1f1XcKTGskhV9wMY2Kp9lr1c5RTKr6vqYT9r7g6BLvDf%2F%2FB2MQZ9fdJaIaNfq%2BXmnvAK0Y661aaPkkgdbLANDn6AHtv4mJWaQ9nEbIhpKezJXF3Wyc2KO5XPtAcpXGkWLgsieaB6cyQvUU11EGmLd%2F%2F6pwyRPlm5N4GB0bAr16Ryw27h9MGxO0O1RLGUwbm4h 11-29 17:51:42.014 8999 0x1f0a32 D [12182066] []: RequestUrlFactory, Signature=QT5PyXVS4UvDfzTOV%2Fr%2FgpfKJrs%3D 11-29 17:51:42.015 8999 0x1f0a32 D [12182066] []: 1121 .. requestUrl = https://vod.cn-shanghai.aliyuncs.com/?AccessKeyId=STS.NU9Djas1iRcTBVL7a5n4p3QTc&Action=GetVideoConfig&AuthInfo=%7B%22CI%22%3A%220iUC7w0QY9O32qvzpHBlX3ipmOdCVR20dc0VQWqVGJcrMMLeCSN2Cv%2FrIMZdouPunpkegrp4iXTB%5Cr%5CnPBXSrGU0KA%3D%3D%5Cr%5Cn%22%2C%22Caller%22%3A%22Iy3rUdHlenH%2FsQa%2Bk1QEdQ%3D%3D%5Cr%5Cn%22%2C%22ExpireTime%22%3A%222019-11-29T09%3A53%3A41Z%22%2C%22MediaId%22%3A%2275263c255aa845f394df543bb65d9946%22%2C%22PlayDomain%22%3A%22schoolvod.zhi20.com%22%2C%22Signature%22%3A%22wIswb6JaLexrIo1oi9QydYLqH%2Bo%3D%22%7D&Format=JSON&SecurityToken=CAIS1wJ1q6Ft5B2yfSjIr5aMD9DVnu5I5aG%2FQHD902FgYrtc3JT%2FgTz2IHlPe3FhAOoev%2Fk%2FmW9U7foclrspE84cGRGaPI5o6p1GzQSiboyZBm1AMz9B2vOfAmG2J0PRL6awCryLsbq%2FF96pb1fb7CwRpZLxaTSlWXG8LJSNkuQJR98LXw6%2BHwEkY8lRKllNpdMiMXLAFPCjNXyQnG3cXmVlpjR9hW54wqO5zMyTiHzbkEao8usctonrC4W4b6sIOYtkAe%2Bx1f1XcKTGskhV9wMY2Kp9lr1c5RTKr6vqYT9r7g6BLvDf%2F%2FB2MQZ9fdJaIaNfq%2BXmnvAK0Y661aaPkkgdbLANDn6AHtv4mJWaQ9nEbIhpKezJXF3Wyc2KO5XPtAcpXGkWLgsieaB6cyQvUU11EGmLd%2F%2F6pwyRPlm5N4G 11-29 17:51:42.017 8999 0x1f0a32 D [12182066] [Downloader]: ---> stop start 11-29 17:51:42.017 8999 0x1f0a32 D [12182066] [Downloader]: stop:182 11-29 17:51:42.017 8999 0x1f0a32 D [12182066] [afThread]: stop:152 11-29 17:51:42.018 8999 0x1f0a32 D [12182066] [afThread]: stop:164 11-29 17:51:42.018 8999 0x1f0a32 D [12182066] [Downloader]: stop:188 11-29 17:51:42.018 8999 0x1f0a32 D [12182066] [Downloader]: stop:194 11-29 17:51:42.020 8999 0x1f0a32 D [12182066] [Downloader]: stop:201 11-29 17:51:42.020 8999 0x1f0a32 D [12182066] [Downloader]: ---> stop end