https://bugs.winehq.org/show_bug.cgi?id=50733
--- Comment #14 from castaneai castaneai@castaneai.net --- Hi. I found a similar problem.
I have attached a minimal application that reproduces this problem. This application uses DirectShow's RenderFile API to play the MPEG file in the first argument.
https://bugs.winehq.org/attachment.cgi?id=69597
It can be reproduced by unzipping it and running the following command
wine mpegplaytest.exe sample_640x360.mpeg
It is terribly slow in Wine 6.3. Wine 6.0 is slightly better, but slower than gst-play.
In addition, I measured the processing time in the pipeline. The results show that mpegvparse0 seems to slow down the whole process.
https://bugs.winehq.org/attachment.cgi?id=69598