saki4510t
commented
9 years ago Hello,
I just added short period pausing feature.
I think basic way to calculate PTS is correct but it will be better to always subtract offset(mPausePTSUs) from PTS.
protected long getPTSUs() {
long result = System.nanoTime() / 1000L - mPausePTSUs;
// presentationTimeUs should be monotonic
// otherwise muxer fail to write
if (result < prevOutputPTSUs) {
result = (prevOutputPTSUs - result) + result;
}
return result;
}I assume the issue is on other part of your implementation. I'm not sure how your actual overall implementation is, you may mistake the way to queue data and handling of queued data. You need to block and skip all new coming data, but you need to keep handling already queued/encoded data until all buffers of MediaCodec encoder become empty.
with best regards, saki
RazorPT
praveenyadati
NLLAPPS
Just tried it and it works really good i just would like to know how to make a pause system? I read that to pause a recording for a media encoder you just record the time that you pause and subtract that time to the PTSUs.
So i tried create a new toggle pause button and replicate most of the code for your normal toggle, when i hit pause i register the System.nanotime in a varible and on resume i subtract the new System.nanotime with my variable like this (mPauseTime is set to 0 when recording starts):
Then on the sMuxer i have:
and on the MediaEncoder class i finally have:
Result: the Video starts black and after some seconds it starts showing the audio plays as normal from beginning even with video black. Am i close?
Thank you so much for your time