Hi to all,
I'm encoding video and audio. For video I encode frames extracted from my
real-time simulation
and for audio I encode "what I'm listening".
For video I "extract and encode" a frame every 40ms to obtain 25fps.
The problem come when I try to also encode audio. My sound card play sound
at 48000 samples/s
so I set the sample_rate param of the encoder to 48000 and I do this test
(copied from output_example.c)
//this routine is called 25 times/second
void timerCB(void *data, SoSensor *sensor)
{
MovieRecorderIv *obj = (MovieRecorderIv *)data;
/* compute current audio and video time */
if ( obj->GetAudioStream() ){
audio_pts = (double)obj->GetAudioStream()->pts.val *
obj->GetAudioStream()->time_base.num /
obj->GetAudioStream()->time_base.den;
}
else
audio_pts = 0.0;
if ( obj->GetVideoStream() )
video_pts = (double)obj->GetVideoStream()->pts.val *
obj->GetVideoStream()->time_base.num / obj->GetVideoStream()->time_base.den;
else
video_pts = 0.0;
/* write interleaved audio and video frames */
if (!obj->GetVideoStream() || (obj->GetVideoStream() &&
obj->GetAudioStream() && audio_pts < video_pts)){
obj->EncodeAudioFrame();
}
else{
obj->EncodeVideoFrame();
}
}
If I also encode audio as in the example above the created mpeg file run
much faster that original, instead If I only encode video
it run at the same fps of the original.
I have some problem to solve my problem, can I have a help?
Regards,
Franco
--
Franco Amato
_______________________________________________
libav-user mailing list
[email protected]
https://lists.mplayerhq.hu/mailman/listinfo/libav-user
