ToDo list for Audio statusbar info and IAMStreamSelect code changes

[clsid2]

High priority:

• When WM ASF Reader is used as source filter, then audio shows up as PCM. This is because upstream filters of AudioSwitcher does not implement IAMStreamSelect. AudioSwitcher in that case just uses mediatype of its own input pin. Should be changed to input pin of upstream decoder. See 5faa90a. WMA Sample
• Test test test

Low priority:

• Handle audio changes when done through splitter tray icon. Maybe let AudioSwitcher send a custom graph event on NewSegment? Then call function to update audio track info in case there are multiple tracks.
• Audio info is shown even if track fails to connect to a decoder. Not sure if this can be prevented. Check if pin is connected?
  Sample

Not fixable:

• If source filter is also a decoder, then audio format shows as PCM. For example with BassAudioSource.

[adipose]

• Handle audio changes when done through splitter tray icon.

Can we just use WM_TIMER? I believe DVD updates are already handled there.

[adipose]

https://gix.github.io/media-types/

[clsid2]

CMainFrame::OnTimer()
I want to avoid repeatedly running code to check if tracks were changed. Better to do it just if something has actually changed.

[clsid2]

Can you test if DVB still works properly?