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遇到的错误：the destination storage credentials must contain the account key credentials，参数名: destinationstoragecredentials
解决方法：accountname与accountkey参数值错误
accountname就是存储账户名字
accountkey值获取方式：打开存储账户-->访问秘钥-->key1或者key2
azure上传资产sdk
我要评论 public class azuremediaservicecontroller : apicontroller
{
// read values from the app.config file.
private static readonly string _aadtenantdomain =
configurationmanager.appsettings["amsaadtenantdomain"];
private static readonly string _restapiendpoint =
configurationmanager.appsettings["amsrestapiendpoint"];
private static readonly string _amsclientid =
configurationmanager.appsettings["amsclientid"];
private static readonly string _amsclientsecret =
configurationmanager.appsettings["amsclientsecret"];
private static cloudmediacontext _context = null;
[httppost, route("api/azuremediaservice/delivervideo")]
// get: amsdelivervideo
public string delivervideo(string filename)
{
getcloudmediacontext();
iasset inputasset = uploadfile(filename, assetcreationoptions.none);
var strsasuri = publishassetgeturls(inputasset);
return strsasuri;
}
/// <summary>
/// 获取媒体文件上下文
/// </summary>
private void getcloudmediacontext()
{
azureadtokencredentials tokencredentials =
new azureadtokencredentials(_aadtenantdomain,
new azureadclientsymmetrickey(_amsclientid, _amsclientsecret),
azureenvironments.azurecloudenvironment);
var tokenprovider = new azureadtokenprovider(tokencredentials);
_context = new cloudmediacontext(new uri(_restapiendpoint), tokenprovider);
}
/// <summary>
/// 创建新资产并上传视频文件
/// </summary>
/// <param name="filename">上传文件名称,如:f:\bigbuck.mp4</param>
static public iasset uploadfile(string filename, assetcreationoptions options)
{
iasset inputasset = _context.assets.createfromfile(
filename,
options,
(af, p) =>
{
console.writeline("uploading '{0}' - progress: {1:0.##}%", af.name, p.progress);
});
return inputasset;
}
static public string publishassetgeturls(iasset asset)
{
// publish the output asset by creating an origin locator for adaptive streaming,
// and a sas locator for progressive download.
//用于流媒体（例如 mpeg dash、hls 或平滑流式处理）的 ondemandorigin 定位符
//_context.locators.create(
// locatortype.ondemandorigin,
// asset,
// accesspermissions.read,
// timespan.fromdays(30));
//用于下载媒体文件的访问签名
_context.locators.create(
locatortype.sas,
asset,
accesspermissions.read,
timespan.fromdays(30));
ienumerable<iassetfile> mp4assetfiles = asset
.assetfiles
.tolist()
.where(af => af.name.endswith(".mp4", stringcomparison.ordinalignorecase));
// get the urls for progressive download for each mp4 file that was generated as a result
// of encoding.
//list<uri> mp4progressivedownloaduris = mp4assetfiles.select(af => af.getsasuri()).tolist();
string mp4progressivedownloaduris = mp4assetfiles.select(af => af.getsasuri()).firstordefault().originalstring;
return mp4progressivedownloaduris;
// display the urls for progressive download.
// mp4progressivedownloaduris.foreach(uri => console.writeline(uri + "\n"));
}
string storageconnectionstring = configurationmanager.appsettings["storageconnectionstring"];
string accountname = configurationmanager.appsettings["accountname"];
string accountkey = configurationmanager.appsettings["accountkey"];
/// <summary>
/// 上传blob文件到ams中
/// </summary>
/// <param name="filename">文件名</param>
public string uploadblobfile(string filename)
{
if (string.isnullorempty(filename))
return string.empty;
cloudstorageaccount storageaccount = null;
cloudblobcontainer cloudblobcontainer = null;
if (cloudstorageaccount.tryparse(storageconnectionstring, out storageaccount))
{
try
{
// 创建cloudblobclient，它代表存储帐户的blob存储端点。
cloudblobclient cloudblobclient = storageaccount.createcloudblobclient();
//filename = "https://qdlsstorage.blob.core.windows.net/video/20190514165259-魔术视频.mp4";
//通过连接获取容器名字和文件名字
var index = filename.indexof(accountname, stringcomparison.currentcultureignorecase);
var temp = filename.substring(index + 1);
var fs = temp.split('/');
var containername = fs[1];
filename = fs[2]; 这一段代码根据你们自己的情况进行修改，我这个是因为传递的全路径才这么写的
// 获取blob容器
cloudblobcontainer = cloudblobclient.getcontainerreference(containername);
getcloudmediacontext();
var storagecredentials = new storagecredentials(accountname, accountkey);
var cloudblockblob = cloudblobcontainer.getblockblobreference(filename);
cloudblockblob.fetchattributes();//这一句是关键，如果不加这一句就会报错，我把报错信息放到下面
var inputasset = _context.assets.createfromblob(cloudblockblob, storagecredentials, assetcreationoptions.none);
var strsasuri = publishassetgeturls(inputasset);
return strsasuri;
}
catch (exception e)
{
console.writeline(e);
}
}
return null;
}
}
报错信息：
<?xml version="1.0" encoding="utf-8"?><m:error xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"><m:code /><m:message xml:lang="en-us">assetfile contentfilesize must not be negative</m:message></m:error>
参考地址：https://github.com/azure/azure-sdk-for-media-services-extensions/issues/40 （这是通过谷歌找到的资料，百度根本不行）
直接上传文件到资产中调用方法：
var virtualpath = "/uploadfile/files/";
var path = httpcontext.current.server.mappath(virtualpath);
if (!directory.exists(path))
{
directory.createdirectory(path);
}
var filefullpath = $"{path}{filename}";
try
{
file.saveas(filefullpath);
var ams = new azuremediaservicecontroller();
url = ams.delivervideo(filefullpath);
result = true;
msg = $@"上传视频成功";
file.delete(filefullpath);
}
catch (exception ex)
{
msg = "上传文件写入失败：" + ex.innerexception + ex.message + ex.innerexception?.innerexception + "filefullpath=" + filefullpath;
}
因为使用的是html自带的file上传控件，传递给接口的文件地址全路径是错误的，所以只能保存到接口服务器本地，上传到azure上去之后再删除这个文件。
上传blob到ams
var ams = new azuremediaservicecontroller();
var t = ams.uploadblobfile(fileurl);
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