### QtAV, Qt version and platform

or commit id if not using release version

### Reproduction steps

### Expected behavior

### Actual behavior

### Log file

set environment var `QTAV_LOG=all` or C++ api `QtAV::setLogLevel(All)` to enable log.

For Player and QMLPlayer example app, choose log level `all` in config page.

### Sample files (optional)

> NOTE: QtAV is no longer maintained, please use [new sdk](https://github.com/wang-bin/mdk-sdk)
