[Interest] Video file generation from Qt application, other than FFmpeg

[Phil Weinstein]

Jason, could you, or someone else elaborate on what this means?  I am 
now seeing, in Qt 5.5, the QMediaRecorder class (not in Qt4) ... 
http://doc.qt.io/qt-5.5/qmediarecorder.html ... Use of this for 
recording video seems to need us to set the "codec" /by name,/ somehow 
found on the system, I guess.  (Our desktop application is now strictly 
on Windows, using Qt widgets).

Is the "codec" issue what you are referring to when you say /"your 
platform must support it."/  What is this about, and is this something 
we will be able to distribute and deploy with our Qt application?  How 
can one get a view of the supported video codec's on a machine?  Where 
do they come from?  Are there non-default Qt build configuration 
switches required to enable video file creation functionality?  (If I'm 
understanding correctly).  And more fundamentally, is QMediaRecorder 
what you are looking at when you say, /"of course"?/

That's a lot of questions.  Thank, you, anyone, in advance, for helping 
me understand this.
- Phil

On 1/21/2016 2:14 PM, Jason H wrote:
> You can of course do this, however, your platform must support it. I'm 
> mucking about in the multimedia stuff at the moment (not my usual 
> thing), and I don't see an obvious reason why you can't implement your 
> own multimedia plugin. You would have to write a frame source (i.e. a 
> Camera). You can model it around one of the existing backends. 

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