I need your advice. I'd like to develop the app for audio/video splitting using Metro interface.
Usually I use DirectShow for it using the follow schema: create a grabber, add it to DS graph, capture by it the audio/video streams and pass them to my AVstream drivers for splitting. But in new program I want to use Media Foundation and insert it into UWP.
How I see my new app. It must have Metro interface for common control: choice of sources, adding parameters, changing modes and etc. I'd like to use MediaCapture class for capture of streams and rendering them too. Here I don't see any problems, MSDN has many samples for it. But I have no ideas how to insert a grabber between source and render.
Which operations a grabber will do:
- Receive input stream from MediaCapture.
- Stream converting : YUV -> RGB, adding effects and etc.
- Send output stream for rendering (MediaCapture) and to my AVstream driver for splitting with any apps (Skype, Adobe Flash Player, Edge, ....).
How to make a grabber. In MSDN I found three ways:
- Sample Grabber Sink (https://msdn.microsoft.com/en-us/library/windows/desktop/hh184779(v=vs.85).aspx). No problem to receive/control/send stream in MF dll. But I don't know how to link that dll with MediaCapture?
- Source Reader (https://msdn.microsoft.com/en-us/library/windows/desktop/dd940436(v=vs.85).aspx). The same problems, plus the Source Reader doesn't work for playback.
- Custom MFT? Any case MediaCapture allows to connect to MFT by AddEffectAsync().
My environment: MS Windows 10, MS Visual Studio Community 2015.
Thank you for any ideas.
