Javacv: Add audio while recording bitmap as video with FFmpegFrameRecorder

[ZeroOneZeroR]

Suppose i have 500 android bitmaps. I have to create a video at 60 frame rate with those bitmaps that means the video will be exactly 8.333 (500/60) seconds in length. I also have to add first 3 seconds of an audio repeatedly which is 10 seconds in length;
I know how to make the video with FrameRecorder but i don't know how to add the music with FrameGrabber as i mentioned.

[saudet]

Just add the audio frames the same way you would add video frames, but set the values in Frame.samples instead of Frame.image.

[ZeroOneZeroR]

i have to use like this. how can i actually do it?

for(int i =0;i<500;i++){
recorder.record(frameFromBitmap)
// it increases the video length
// and i have to grab again the first frame if audio frame reaches 3 seconds
Frame audioFrame = grabber.grab();
recorder.record(audioFrame);
}

[saudet]

We can check the timestamp with getTimestamp().

[ZeroOneZeroR]

Thank you very much...

[ZeroOneZeroR]

i can add audio now but video length gets increased. How to solve?

[saudet]

Make sure getTimestamp() doesn't go over the length you want.

[ZeroOneZeroR]

here is the code

for(int i = 1; i<=500; i++){
                    Frame videoFrame = new AndroidFrameConverter().convert(bitmap);
                    videoFrame.samples = frameGrabber.grabSamples().samples;
                    recorder.record(videoFrame);
                    // as i want only 3 seconds of the music repeatedly
                    if(frameGrabber.getTimestamp()/1000 > 3000){
                        frameGrabber.setTimestamp(0);
                    }
                }

video length should be 8.333 seonds but it is alomost 12 seconds. where is the problem?

[saudet]

Like I said, make sure getTimestamp() never exceeds 8.333 seconds!

[ZeroOneZeroR]

how can i explain you!!!!!! I have to run the loop 500 times exactly as i want to record all 500 bitmaps. If i stop the loop when grabber.getTimeStamp() exceeds 8.333s then i have to stop at before 500.

[ZeroOneZeroR]

I have got the solution. thank you very much.

[nitinbhanderi35]

@ZeroOneZeroR Can you please explain the solution here?