From: Alex <3.14pi@ukr.net>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] filter queue question
Date: Tue, 05 Jul 2022 16:00:29 +0300
Message-ID: <1657024821.546426000.sb0n6ii6@frv55.fwdcdn.com> (raw)
Hi!
I developing custom GPU filter that require lot of time to process frames and as result overal fps is low ( around 20 fps):
ffmpeg -i 720p.mp4 -filter_complex "format=rgb24,myfilter" -f null -
But then I added actual encoding part to ffmpeg command, result fps is down to 16 fps (-4 fps, around 20%!!!):
ffmpeg -i 720p.mp4 -filter_complex "format=rgb24,myfilter" -c:v h264 -y out.mp4
If I look at timeline of overla process in each cycle:
|----decoding time---| ---> |------------------------------filtering time-------------------------| ---> |---encoding time---|
So, basically can I process frame in my custom filter without waiting for encoding to finish?
In other word I want to process frames in my custom filter in parallel/queue to encoding process???
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next reply other threads:[~2022-07-05 13:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-05 13:00 Alex [this message]
2022-07-05 13:19 ` Felix LeClair
2022-07-05 14:23 ` Alex
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