An exception appears in VideoPlayer on UWP

Unity Engine
,
1

Hi everyone!

We are playing mp4 using the VideoPlayer component in UWP.
It looks like it is working.
However, exception comes out every frame in VS output.
We do not know the cause or workaround for it.

If necessary can also submission the min sample.
Please help me.

Info
Unity2018.1.2f1
script backend: .NET / IL2CPP (Both)
Scriot Runtime Version: .NET 4.x Equivalent
Api Compatibility Level .NET 4.x
mp4 Path: /StreamingAssets/***.mp4

2

Log
(Japanese: It is hard to read, but it will be better than nothing)

Exception thrown at 0x00007FFEFAB8A388 in TestMovieUWP.exe: Microsoft C++ exception: _com_error at memory location 0x000000B1A76F5728.
Exception thrown at 0x00007FFEFAB8A388 in TestMovieUWP.exe: Microsoft C++ exception: _com_error at memory location 0x000000B1A76F5728.```

The last exception is output for all frames that play Movie.
3

I would not worry about it. These exceptions are likely thrown inside Windows Media Foundation libraries and caught within, which makes them harmless. You should just be able to ignore them.

4

Thank you!

We aer worried about ignoring exceptions, but I will follow your advice.

5

Look at it this way:

try
{
    File.ReadAllLines("aaa.txt");
}
catch (FileNotFoundException)
{
    // file didn't exist, carry on
}

What it generally means is that some code inside Microsoft libraries throw an exception, but they are caught as they’re expecting them. It’s no different as when you do it in your C# code.