Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

>> 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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

>> 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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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 > > [...] > > > > >

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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,

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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 ()` in the function readAudio > program was working fine with old version in my system. But this function > is not in the latest git repo

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

Hi Michael, I have attached a patch with the mail. With `avcodec_get_frame_defaults ()` 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()` instead and the program segfaults. I am not sure

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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 [...] --

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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:

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

>> 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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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: [FFmpeg-devel] [OPW] OPW Project Proposal

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 : > >

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

>> 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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

>> 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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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].

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

Re: [FFmpeg-devel] [OPW] OPW Project Proposal

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

[FFmpeg-devel] [OPW] OPW Project Proposal

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