[FFmpeg-devel] [OPW] OPW Project Proposal

Nicolas George george at nsup.org
Mon Sep 26 20:03:29 EEST 2016

Le quartidi 4 vendémiaire, an CCXXV, Pallavi Kumari a écrit :
> I want to propose the idea of 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 a 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

> Kindly, let me know if the proposed idea sounds interesting and relevant to
> the community. I would be happy to share a rough draft containing details.

I think this could be a very interesting project, but maybe also very hard.
I myself do not have the skills or knowledge to help in any way in that

I think a few fingerprinting algorithms of the kind exist. Implementing them
with ffmpeg's DSP infrastructure would probably be easier than designing one
from scratch.

OTOH, there is one use that I have in mind that may not be covered by
existing algorithms: fingerprinting a short segment of audio to search for
it efficiently and accurately in a larger footage without access to the
original segment, and even if it was subjected to a different lossy codec or
even small changes in pitch or speed. To be honest, I do not know if it is
even possible, but it would be very useful.


  Nicolas George
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