The question of writing the render filter in DirectShow

Recently, a problem occurs. The damaged WMV file can be played normally only after being dragged. To solve this problem, I decided to write a render filter and construct another graph to save it as a normal WMV file, removing the first 1 second data.

I wrote a render filter, and there is no problem with the video separately. An error occurs when the audio is added.

The system prompts that the unsupported status changes, but the normal WMV file test is normal. It seems that the render filter is more complicated.

During the test, we accidentally found that the video did not affect the time reference of graph manager, but it had no relationship at all.

Let's take a look tomorrow. If it doesn't work, we will change it to the transform filter method, but it will be a bit more .....

Depressing