[FFmpeg-devel] [OPW] OPW Project Proposal

[Pallavi Kumari]

>> its probably better if i add it but you can post a suggested wiki
>> marked up text here and ill add it to the page if it looks ok
>> ... my lazyness is limitless

Below is the content.

Audio Fingerprinting Filters for FFmpeg
******************************************

Implementing filters for ffmpeg that would give different audio
fingerprints for an audio which could be reused by other people for variety
of applications. Goal of this system is given a song as an input, it would
spits out similar sounding songs. Some of its applications are:

* detecting duplicate songs
* retrieving similar songs
* can be used for recommending songs
* clustering songs based on content/tags


>> and that changes done during the project do improve this.
>> It should not be implemented and after that tested that would be bad
>> the earlier there is something that can be tested an compared against
>> competing solutions the better and easier it would be to tune things
>> and easily try modifications ...

I agree. This is something to consider while making a timeline.

>> frame rate ? you mean sample rate ?
Yes.

>> am i correct that with peaks you mean peaks in a frequency/time 2d
array ?
Yes.

On Sat, Oct 8, 2016 at 8:06 AM, Michael Niedermayer <michael at niedermayer.cc>
wrote:

> On Fri, Oct 07, 2016 at 10:49:42PM +0530, Pallavi Kumari wrote:
> > >> iam interrested, i intend to mentor only one applicant though
> > >> iam also the mentor for "Improve Selftest coverage"
> > >> (hint .... if someone wants to take mentoring that over for example
> ...)
> >
> > Thank you for your interest :)
> > Is there any applicant for ''Improve Selftest coverage'' ?
>
> There were several applicants who contacted me and i told all to
> add themselfs to
> https://trac.ffmpeg.org/wiki/SponsoringPrograms/Outreachy/2016-12-Qualis
> (same as previous years)
> the page is still empty so iam not sure we have an applicant
>
>
> >
> > >> Do you have a suggeted entry for
> > >> https://trac.ffmpeg.org/wiki/SponsoringPrograms/Outreachy/2016-12
> > >> for this project ?
> >
> > This idea was proposed by me. I wanted to check first if it's relevant to
> > community. The community has show immense interest so, I was looking for
> > mentor(s). I would be happy to add this idea on the link mentioned above
> > (if I have permission) or some one with the edit permission can do it.
>
> its probably better if i add it but you can post a suggested wiki
> marked up text here and ill add it to the page if it looks ok
> ... my lazyness is limitless
>
> also with a project like this its important to carefuly test the
> fingerprinting to ensure degraded songs can be quickly and reliably
> be matched up in a large set of reference fingerprints/songs
>
> and that changes done during the project do improve this.
> It should not be implemented and after that tested that would be bad
> the earlier there is something that can be tested an compared against
> competing solutions the better and easier it would be to tune things
> and easily try modifications ...
>
>
> >
> >
> > >> also, important, we need a qualification task which should be a small
> > >> part of the whole that shows that the applicant is qualified/able to
> > >> do the project, any suggestion ?
> >
> > A small task could be writing a module that reads a sound file extract
> > sound information and frame rate also find point of interests (peak
>
> frame rate ? you mean sample rate ?
>
>
> > intensity points) and plot it on graph. Also add a unit test for this
> > module.
> >
> > what do you think?
>
> that "module" can be a audio->video libavfilter
> am i correct that with peaks you mean peaks in a frequency/time 2d
> array ?
>
> thx
>
> [...]
>
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> The misfortune of the wise is better than the prosperity of the fool.
> -- Epicurus
>
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