[FFmpeg-user] Overlay performance

Darrin Smith darrinps at gmail.com
Tue Aug 27 19:04:01 EEST 2019


I did copy the command, but there is no way to get better hardware. This is
for an app where the user may have even lesser hardware (cell phones) than
what was used so I'm hoping to optimize it as much as possible.

Thank you for your feedback anything else you can think of?

On Tue, Aug 27, 2019, 10:57 AM Paul B Mahol <onemda at gmail.com> wrote:

> >
> > Here is the command string for the merging
> >
> >
> > val cmd = "-y -i $inputFileUrl -i $transparencyFullUrl -filter_complex
> > [1]format=bgra,colorchannelmixer=aa=1,rotate=0:c=black at 0
> >
> :ow=rotw(0):oh=roth(0)[overlayImage];[0][overlayImage]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2
> > $outputPathAndName"
> > val command = cmd.split(" ".toRegex()).dropLastWhile { it.isEmpty()
> > }.toTypedArray()
> >
>
> colorchannelmixer=aa=1 is here doing nothing.
> Have you blindly copied this command from somewhere?
>
> To make current command to process faster get better hardware, seriously.
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