[英]How can i tell when a Directshow.net conversion is done?
right now I have a Directshow.net graph that takes in a video file and encodes it to a file, however it just continues to run现在我有一个 Directshow.net 图,它接收一个视频文件并将其编码为一个文件,但它只是继续运行
int x = program.Run()
in DirectShow.net and i want the program to close when the full conversion is done instead of me having to guess.在 DirectShow.net 中,我希望程序在完全转换完成后关闭,而不是我不得不猜测。
how can i tell if its done encoding programatically?我怎么知道它是否以编程方式完成编码?
If you have a mediaEvent variable you can check against the WaitForCompletion function to see if the code is done running.如果您有一个 mediaEvent 变量,您可以检查 WaitForCompletion function 以查看代码是否已完成运行。 if the result of the waitforcompletion ( gh in this case) is not 0, it is running, if it is equal to 0, then its done.
如果 waitforcompletion 的结果(在本例中为 gh)不为 0,则它正在运行,如果它等于 0,则它已完成。
const int E_Abort = unchecked((int)0x80004004);
EventCode evCode;
int gh = mediaEvent.WaitForCompletion(1000, out evCode);
DsROTEntry rot = new DsROTEntry(filter);
while (gh == E_Abort)
{ System.Windows.Forms.Application.DoEvents();
gh = this.mediaEvent.WaitForCompletion(1000, out evCode); }
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