[FFmpeg-devel] On libavfilter: A Summary of Issues

Don Moir donmoir at comcast.net
Fri Oct 19 02:41:07 CEST 2012

----- Original Message ----- 
From: "Roger Pack" <rogerdpack2 at gmail.com>
To: "FFmpeg development discussions and patches" <ffmpeg-devel at ffmpeg.org>
Sent: Thursday, October 18, 2012 8:04 PM
Subject: Re: [FFmpeg-devel] On libavfilter: A Summary of Issues

>> A while back I needed audio waveform data and just about the same time a
>> filter was being written for libavfilter to do this. For me I needed finer
>> control over it and to also create peak data files so next time it would
>> much faster so again just rolled my own.
>> Just my 2 cents and really I do think about it from time to time.
> rolled your own libavfilter, or you own wave analyzer?

Needed peak data in a way that made sense to us and to also create peak data files. Not to say whatever is in libavfilter for this 
doesnt make sense, it was just easy to do and the way I needed it to work without depending on another library for it.

Any kind of visual effect I might need is directed to the hardware.

Some things I would rather specialize and just so far there is nothing in libavfilter I need. I am not sure what else to say about 
it and it is probably useful for some.

For example: Why would would I want libavfilter messing around with alpha when it's just one quick switch to the hardware call ?

I think libavfilter is probably useful for some, but not so useful for others. This is just my perspective and I think original 
email asked for input. 

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