can you add audio support?

[rcyboom]

example:
addFrame(QImage &img,QByteArray &soundData) or ...

[ju6ge]

Hey, currently I am pretty busy so I don't have time to add this. And also I don't really have a example in with which I could test this. But I do not object to adding this. If you want to try and add this it should not be to hard. That being said the c interface to ffmpeg is not documented very well. So if you want to take a crack at this I would suggest you look for some ffmpeg audio encoding examples on Github and going from there.

[rcyboom]

I know a little about it,but I don't know how to synchronize the audio and video.

[ju6ge]

Hm I am also not an expert on audio and video encoding. Doing a quick search gave me this example on how to encode audio with avcodec. So my guess on how to best approch this would be to add an audio_context to the QVideoWriter class. Initialization of this context should be similar to the example, but you might need to a different codec depending in what format your audio data is stored in the QByteArray. The encode function in the example basically is the same as the one I am using, so you don't need to add one for audio. I think adding an addAudioFrame(QByteArray &soundData) function that calls the encoding function with the audio context instead of the video context and which does not increment the frame_cnt variable might just do the trick.