换成4.7后，视频下载出错。

[allran]

视频在3.x下正常播放并安全下载。在4.x下能正常播放，不能正常下载。请问是需要在后台设置什么么？

以下是后台设置的权限：

全局
AliyunSTSAssumeRoleAccess
系统策略
调用STS服务AssumeRole接口的权限
移除权限
全局
AliyunVODFullAccess
系统策略
管理视频点播服务(VOD)的权限
移除权限

以下是IOS这边的报错 1.下载时，只调用[DEFAULT_DM prepareDownloadSource:dataSource]时，报错：

2019-09-17 15:56:59.437334+0800 KailinCollege[13070:160404] viewDidAppear:
09-17 15:56:59.730 13070 0x27547 D [11786898] [CurlDataSource]: connected
09-17 15:56:59.730 13070 0x27547 I [11786898] [CurlDataSource]: CURLINFO_RESPONSE_CODE is 403
09-17 15:56:59.730 13070 0x27547 D [11786898] []: 1121 .. VOD error : You are not authorized to operate this resource, or this API does not support RAM. 
09-17 15:56:59.730 13070 0x27547 E [11786898] [VodErrorInfo]: vod error code Forbidden.RAM not mapped..
09-17 15:56:59.731 13070 0x27294 E [11786898] [DownloadErrorMap]: not mapped errorCode : 536936960  , maybe player error?
2019-09-17 15:57:02.048572+0800 KailinCollege[13070:160404] 下载错误:Forbidden.RAM:You are not authorized to operate this resource, or this API does not support RAM.
2019-09-17 15:57:02.048582+0800 KailinCollege[13070:160467] NSURLConnection finished with error - code -1001
09-17 15:57:02.048 13070 0x27294 D [11786898] [Downloader]: ---> stop start
09-17 15:57:02.048 13070 0x27294 D [11786898] [Downloader]: stop:182

2.如果调用

 [DEFAULT_DM clearAllPreparedSources];
 [DEFAULT_DM prepareDownloadSource:dataSource];
 [DEFAULT_DM addDownloadSource:dataSource];
[DEFAULT_DM startDownloadSource:dataSource];

则报如下错误：

09-17 15:58:39.388 13293 0x27c26 D [11786898] [Downloader]: ---> prepare vidStsSource = 0x7ffee9fab8d8
09-17 15:58:39.388 13293 0x27c26 D [11786898] []: RequestUrlFactory, CQSString=AccessKeyId=STS.NJmCovECR6zaCSmmV1A9j8vLc&Action=GetVideoConfig&Format=JSON&SecurityToken=CAIS1AJ1q6Ft5B2yfSjIr4nYCNXCqJxzgbiKQXXciVZkTbZG17PngTz2IH9EfXNsCesetPk1lWpV6vgYlol4EJYZHEfPZ5Iss58Lqwr4adaQ5Mbp5O1dg5P7QmOeV0YgW2BJ2KCrIunGc9KBNno7%2F00amMkDHFfPdlihNoLzhvwDR98LXw6%2BQCNbDdNNXGVLo9MbMn2jEpTKLBnm0EXdEHJssxtdj214i9ihxcHOxRfCslz2x%2Bgto43gC4W4b6sQIpBzAfi4wNJ3eqfG6CpZ%2BjlM%2BqAU9LJD9WXos82jAlVc5DSAPe2uhb8JFgJiYbUgEKNpteX1keYC2tbejIPq0R1AT4o3Omb9PNn%2Bm5OcQr72ao9pLu%2BhYi%2F3v4rRZsWvgWQNemkGMQ5GQd0lJ0JrBAYkIjOgcfD3oQqWMlz7EfXfgftrjcQv1Tr2%2BtaQIFyCU3BpfcSPnQVWGoABpT5JtWostHue7F4anQQnwBX3Ih0zLayRfEM00zQCNx1h1PiFbcjUab636VzlgGm2gszOld9T5qSKqqDE5NA1uFquBz3nX4PbOzKAsy%2Fs2mWKLWmtF%2BAFfvJ8o4AhKDV%2F0I5lb%2BVGaCac6rZEF2bApuJNEqcAY6ujyYcvb039SXI%3D&SignatureMethod=HMAC-SHA1&SignatureNonce=1875d6fb-c691-4964-9c96-d731102c9fb0&SignatureVersion=1.0&Version=2017-03-21&VideoId=
09-17 15:58:39.388 13293 0x27c26 D [11786898] []: RequestUrlFactory, Signature=pDK4JrX%2FRGNU41t38HeU9WC%2Bcvg%3D
09-17 15:58:39.388 13293 0x27c26 D [11786898] []: 1121 .. requestUrl = https://vod.cn-shanghai.aliyuncs.com/?AccessKeyId=STS.NJmCovECR6zaCSmmV1A9j8vLc&Action=GetVideoConfig&Format=JSON&SecurityToken=CAIS1AJ1q6Ft5B2yfSjIr4nYCNXCqJxzgbiKQXXciVZkTbZG17PngTz2IH9EfXNsCesetPk1lWpV6vgYlol4EJYZHEfPZ5Iss58Lqwr4adaQ5Mbp5O1dg5P7QmOeV0YgW2BJ2KCrIunGc9KBNno7%2F00amMkDHFfPdlihNoLzhvwDR98LXw6%2BQCNbDdNNXGVLo9MbMn2jEpTKLBnm0EXdEHJssxtdj214i9ihxcHOxRfCslz2x%2Bgto43gC4W4b6sQIpBzAfi4wNJ3eqfG6CpZ%2BjlM%2BqAU9LJD9WXos82jAlVc5DSAPe2uhb8JFgJiYbUgEKNpteX1keYC2tbejIPq0R1AT4o3Omb9PNn%2Bm5OcQr72ao9pLu%2BhYi%2F3v4rRZsWvgWQNemkGMQ5GQd0lJ0JrBAYkIjOgcfD3oQqWMlz7EfXfgftrjcQv1Tr2%2BtaQIFyCU3BpfcSPnQVWGoABpT5JtWostHue7F4anQQnwBX3Ih0zLayRfEM00zQCNx1h1PiFbcjUab636VzlgGm2gszOld9T5qSKqqDE5NA1uFquBz3nX4PbOzKAsy%2Fs2mWKLWmtF%2BAFfvJ8o4AhKDV%2F0I5lb%2BVGaCac6rZEF2bApuJNEqcAY6ujyYcvb039SXI%3D&SignatureMethod=HMAC-SHA1&SignatureNonce=1875d6fb-c691-4964-9c96-d731102c9fb0&SignatureVersion=1.0&Version=2017-03-21&VideoId=&Signature=pDK4JrX%2FRGNU41t38HeU9WC%2Bcvg%3D 
09-17 15:58:41.154 13293 0x27da3 I [11786898] []: loop index is 10.132895
09-17 15:58:41.920 13293 0x27e23 D [11786898] [CurlDataSource]: start connect
09-17 15:58:41.920 13293 0x27da3 E [11786898] [AlivcPlayerClock]: TIMEPOS reSync time 6682191 to  4133187
09-17 15:58:41.920 13293 0x27da3 I [11786898] [PlayerNotifier]: NotifyPosition() :4133
09-17 15:58:41.925 13293 0x27d22 I [11786898] []: KPI test total fps:2.5, Current FPS:2.5
09-17 15:58:43.026 13293 0x27da3 I [11786898] []: loop index is 1.068109
09-17 15:58:43.027 13293 0x27da3 E [11786898] [AlivcPlayerClock]: TIMEPOS reSync time 5239865 to  4144791
09-17 15:58:43.027 13293 0x27da3 I [11786898] [PlayerNotifier]: NotifyPosition() :4144
2019-09-17 15:58:43.028472+0800 KailinCollege[13293:162854] currentTime:4133  durationTime:1873000
09-17 15:58:43.028 13293 0x27c26 D [11786898] [Downloader]: ---> selectItem -2
09-17 15:58:43.028 13293 0x27c26 D [11786898] [Downloader]: ---> stop start
09-17 15:58:43.028 13293 0x27c26 D [11786898] [Downloader]: stop:182
09-17 15:58:43.028 13293 0x27c26 D [11786898] []: IDataSource interrupt is 1
09-17 15:58:43.028 13293 0x27c26 D [11786898] [afThread]: stop:152
09-17 15:58:43.038 13293 0x27e23 W [11786898] [CurlDataSource]: FRAMEWORK_ERR_EXIT
09-17 15:58:43.038 13293 0x27e23 E [11786898] [CurlDataSource]: Connect, didn't get any data from stream.
09-17 15:58:43.038 13293 0x27c26 D [11786898] [afThread]: stop:164
09-17 15:58:43.038 13293 0x27c26 D [11786898] [Downloader]: stop:188
09-17 15:58:43.039 13293 0x27c26 D [11786898] [Downloader]: stop:194
09-17 15:58:43.039 13293 0x27c26 D [11786898] [Downloader]: stop:201
09-17 15:58:43.039 13293 0x27c26 D [11786898] [Downloader]: ---> stop end
09-17 15:58:43.039 13293 0x27c26 D [11786898] [Downloader]: ---> start
2019-09-17 15:58:43.039595+0800 KailinCollege[13293:162854] currentTime:4144  durationTime:1873000
09-17 15:58:44.110 13293 0x27c26 D [11786898] [Downloader]: ---> stop start
09-17 15:58:44.110 13293 0x27c26 D [11786898] [Downloader]: stop:182
09-17 15:58:44.110 13293 0x27c26 D [11786898] []: IDataSource interrupt is 1
09-17 15:58:44.110 13293 0x27c26 D [11786898] [afThread]: stop:152
09-17 15:58:44.110 13293 0x27c26 D [11786898] [afThread]: stop:164
09-17 15:58:44.110 13293 0x27c26 D [11786898] [Downloader]: stop:188
09-17 15:58:44.110 13293 0x27c26 D [11786898] [Downloader]: stop:194
09-17 15:58:44.110 13293 0x27c26 D [11786898] [Downloader]: stop:201
09-17 15:58:44.110 13293 0x27c26 D [11786898] [Downloader]: ---> stop end
2019-09-17 15:58:44.110902+0800 KailinCollege[13293:162854] 下载错误:Not select item yet.
09-17 15:58:44.110 13293 0x27da3 I [11786898] []: loop index is 1.845911
09-17 15:58:44.111 13293 0x27da3 E [11786898] [AlivcPlayerClock]: TIMEPOS reSync time 5228772 to  4156395
09-17 15:58:44.114 13293 0x27da3 I [11786898] [PlayerNotifier]: NotifyPosition() :4160
2019-09-17 15:58:44.115443+0800 KailinCollege[13293:162854] viewDidAppear:

[cczufish]

有声音 有进度 没有画面这个问题需要更新sdk 4.7.1

下载下来是m3u8（ts）格式，不能保存到本地相册 这个问题需要在播放时指定格式mp4

    stsSource?.format = "mp4"

/** @brief format,default is nil, value is "mp4|mp3|flv|m3u8" / @Property (nonatomic, copy) NSString format;