Hi folks,
I am Pallavi Kumari, a recent graduate in Computer Science from IIIT
Hyderabad, India. My areas of interest includes Information Retrieval and
Extraction, Machine learning, Deep learning , algorithms. I have sound
knowledge C, C++, Python and am familiar with various open source
technolo
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 i
Thanks for the inspiring reply Nicholas :) I am glad that you find the idea
very interesting.
>> 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
area.
I have been reading few papers related to s
Hi,
On Sun, Sep 25, 2016, at 04:32 AM, Pallavi Kumari wrote:
[...]
> 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.
chromaprint comes to mind. It may be
On Sun Sep 25 2016 14:32:25 GMT+0200 (CEST), Pallavi Kumari wrote:
[...]
> 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
Lou, Jean thanks for your suggestions. I will go through them meanwhile I
have finished a rough sketch of the idea. Please find it at [1].
[1] https://wiki.mozilla.org/Atana/idea
On Tue, Sep 27, 2016 at 11:33 AM, Jean First wrote:
> On Sun Sep 25 2016 14:32:25 GMT+0200 (CEST), Pallavi Kumari w
I am looking for mentor(s). Kindly let me know if anyone interested.
On Tue, Sep 27, 2016 at 2:22 PM, Pallavi Kumari
wrote:
> Lou, Jean thanks for your suggestions. I will go through them meanwhile I
> have finished a rough sketch of the idea. Please find it at [1].
>
> [1] https://wiki.mozilla
On Wed, Oct 05, 2016 at 11:23:11PM +0530, Pallavi Kumari wrote:
> I am looking for mentor(s). Kindly let me know if anyone interested.
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 tha
>> 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'' ?
>> Do you h
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
>> 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
Le nonidi 19 vendémiaire, an CCXXV, Pallavi Kumari a écrit :
> 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 simil
Hi Nicholas,
The use cases proposed by you is certainly very useful. You are welcome to
add it with the wiki content. Thanks again for your input :)
On Mon, Oct 10, 2016 at 10:33 PM, Nicolas George wrote:
> Le nonidi 19 vendémiaire, an CCXXV, Pallavi Kumari a écrit :
> > Implementing filters fo
On Mon, Oct 10, 2016 at 10:48:19PM +0530, Pallavi Kumari wrote:
> Hi Nicholas,
>
> The use cases proposed by you is certainly very useful. You are welcome to
> add it with the wiki content. Thanks again for your input :)
added the entry with the sugested addition
also you didnt list "Expected re
>> added the entry with the sugested addition
>> also you didnt list "Expected results" so i added some
Thank you.
Is the preferred language C for this kind of filter? C++ ?
I don't see a qualification task on the wiki. Let me know so that that I
can start with it and with writing the applicat
On Tue, Oct 11, 2016 at 09:52:08PM +0530, Pallavi Kumari wrote:
> >> added the entry with the sugested addition
>
> >> also you didnt list "Expected results" so i added some
>
> Thank you.
>
> Is the preferred language C for this kind of filter? C++ ?
C (optional assembly optimizations are welc
On Tue, Oct 11, 2016 at 11:54:04PM +0200, Michael Niedermayer wrote:
> On Tue, Oct 11, 2016 at 09:52:08PM +0530, Pallavi Kumari wrote:
> > >> added the entry with the sugested addition
> >
> > >> also you didnt list "Expected results" so i added some
> >
> > Thank you.
> >
> > Is the preferred l
Hi Michael,
Please find the task at https://github.com/atana1/audio_stream
Regards,
Pallavi
nick - atana
On Wed, Oct 12, 2016 at 6:26 AM, Michael Niedermayer wrote:
> On Tue, Oct 11, 2016 at 11:54:04PM +0200, Michael Niedermayer wrote:
> > On Tue, Oct 11, 2016 at 09:52:08PM +0530, Pallavi Kum
On Sat, Oct 15, 2016 at 03:33:27AM +0530, Pallavi Kumari wrote:
> Hi Michael,
>
> Please find the task at https://github.com/atana1/audio_stream
The code should be a avfilter in libavfilter
also it should be using the existing fft code
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BA
I will makes the necessary changes.
On Sat, Oct 15, 2016 at 5:45 AM, Michael Niedermayer wrote:
> On Sat, Oct 15, 2016 at 03:33:27AM +0530, Pallavi Kumari wrote:
> > Hi Michael,
> >
> > Please find the task at https://github.com/atana1/audio_stream
>
> The code should be a avfilter in libavfilte
I am not sure how to use fft function of ffmpeg. I tried on a test code
https://dpaste.de/es8K. could you point me to an example or something?
Also, could you help me with a timeline for this project.
On Sat, Oct 15, 2016 at 10:34 PM, Pallavi Kumari wrote:
> I will makes the necessary changes.
Hi Michael,
I figured out the use of fft. Help me with the time line setting. Thanks
On Mon, Oct 17, 2016 at 1:37 PM, Pallavi Kumari
wrote:
> I am not sure how to use fft function of ffmpeg. I tried on a test code
> https://dpaste.de/es8K. could you point me to an example or something?
>
> Also
Hi
On Mon, Oct 17, 2016 at 02:06:26PM +0530, Pallavi Kumari wrote:
> Hi Michael,
>
> I figured out the use of fft. Help me with the time line setting. Thanks
I dont understand the question,
if its about AVFILTER_FLAG_SUPPORT_TIMELINE*, please ignore this for
now, its not needed
[...]
--
Michae
I mean deciding a timeline for the opw project. Which is to be mentioned in
application
On Wed, Oct 26, 2016 at 6:01 PM, Michael Niedermayer wrote:
> Hi
>
> On Mon, Oct 17, 2016 at 02:06:26PM +0530, Pallavi Kumari wrote:
> > Hi Michael,
> >
> > I figured out the use of fft. Help me with the time
On Thu, Oct 27, 2016 at 12:40:53AM +0530, Pallavi Kumari wrote:
> I mean deciding a timeline for the opw project. Which is to be mentioned in
> application
its your application, you can choose whatever timeline you feel makes
sense.
As far as iam concered whats important is to finish the qualifica
Hi Michael,
I have attached a patch with the mail.
With `avcodec_get_frame_defaults (&frame)` in the function readAudio
program was working fine with old version in my system. But this function
is not in the latest git repo so I used `av_frame_unref(&frame)` instead
and the program segfaults. I a
On Thu, Oct 27, 2016 at 11:38:27PM +0530, Pallavi Kumari wrote:
> Hi Michael,
>
> I have attached a patch with the mail.
>
> With `avcodec_get_frame_defaults (&frame)` in the function readAudio
> program was working fine with old version in my system. But this function
> is not in the latest git
Hi Michael,
I have attached a working patch with the mail. PFA.
Usage:
./ffmpeg -i kpg.mp3 -filter_complex peakpoints=input=kpg.mp3:wsize=16
Regards,
Atana
On Fri, Oct 28, 2016 at 4:38 AM, Michael Niedermayer wrote:
> On Thu, Oct 27, 2016 at 11:38:27PM +0530, Pallavi Kumari wrote:
> > Hi Mi
On Wed, Nov 02, 2016 at 05:00:09AM +0530, Pallavi Kumari wrote:
> Hi Michael,
>
> I have attached a working patch with the mail. PFA.
>
> Usage:
>
> ./ffmpeg -i kpg.mp3 -filter_complex peakpoints=input=kpg.mp3:wsize=16
>
>
> Regards,
> Atana
>
> On Fri, Oct 28, 2016 at 4:38 AM, Michael Nieder
On Wed, Nov 02, 2016 at 05:00:09AM +0530, Pallavi Kumari wrote:
> Hi Michael,
>
> I have attached a working patch with the mail. PFA.
>
> Usage:
>
> ./ffmpeg -i kpg.mp3 -filter_complex peakpoints=input=kpg.mp3:wsize=16
I realize now, theres a mistake in this, you must provide a output
as in
./
Necessary changes has been done. PFA.
Usage:
./ffmpeg -i kpg.mp3 -filter_complex peakpoints=wsize=16 -f null -
On Wed, Nov 2, 2016 at 6:14 AM, Michael Niedermayer
wrote:
> On Wed, Nov 02, 2016 at 05:00:09AM +0530, Pallavi Kumari wrote:
> > Hi Michael,
> >
> > I have attached a working patch wi
On Thu, Nov 03, 2016 at 01:10:26AM +0530, Pallavi Kumari wrote:
> Necessary changes has been done. PFA.
>
> Usage:
>
> ./ffmpeg -i kpg.mp3 -filter_complex peakpoints=wsize=16 -f null -
>
> On Wed, Nov 2, 2016 at 6:14 AM, Michael Niedermayer
> wrote:
>
> > On Wed, Nov 02, 2016 at 05:00:09AM +05
Updated patch attached. PFA
On Thu, Nov 3, 2016 at 2:00 AM, Michael Niedermayer
wrote:
> On Thu, Nov 03, 2016 at 01:10:26AM +0530, Pallavi Kumari wrote:
> > Necessary changes has been done. PFA.
> >
> > Usage:
> >
> > ./ffmpeg -i kpg.mp3 -filter_complex peakpoints=wsize=16 -f null -
> >
> > On W
On Fri, Nov 04, 2016 at 07:46:34AM +0530, Pallavi Kumari wrote:
> Updated patch attached. PFA
[...]
> Makefile|1
> af_peakpoints.c | 263
>
> allfilters.c|1
> version.h |2
> 4 files changed, 266 inserti
patch attached.
On Fri, Nov 4, 2016 at 3:29 PM, Michael Niedermayer
wrote:
> On Fri, Nov 04, 2016 at 07:46:34AM +0530, Pallavi Kumari wrote:
> > Updated patch attached. PFA
> [...]
>
> > Makefile|1
> > af_peakpoints.c | 263 ++
>
On Fri, Nov 04, 2016 at 05:27:34PM +0530, Pallavi Kumari wrote:
> patch attached.
>
> On Fri, Nov 4, 2016 at 3:29 PM, Michael Niedermayer
> wrote:
>
> > On Fri, Nov 04, 2016 at 07:46:34AM +0530, Pallavi Kumari wrote:
> > > Updated patch attached. PFA
> > [...]
> >
> > > Makefile|1
>
>> The frequency components after a R->C FFT are complex numbers
>> the peak values of complex numbers are not the same as the maxima of
>> their real components
>> did the paper this is based on say anything about what is recommanded
>> to take here for the maxima?
>> It would seem logic to me to
On Fri, Nov 04, 2016 at 09:01:22PM +0530, Pallavi Kumari wrote:
> >> The frequency components after a R->C FFT are complex numbers
> >> the peak values of complex numbers are not the same as the maxima of
> >> their real components
> >> did the paper this is based on say anything about what is reco
>> ok, do you know how to compute that or should i explain it ?
Explanation will help. Is there any function in FFmpeg to get absolute
value of FFT?
and how to get frequency data?
On Fri, Nov 4, 2016 at 11:04 PM, Michael Niedermayer wrote:
> On Fri, Nov 04, 2016 at 09:01:22PM +0530, Pallavi Ku
On Fri, Nov 04, 2016 at 11:37:24PM +0530, Pallavi Kumari wrote:
> >> ok, do you know how to compute that or should i explain it ?
>
> Explanation will help. Is there any function in FFmpeg to get absolute
> value of FFT?
hypot() of the 2 real components of each complex value should work
complex
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