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path: root/libavfilter/avf_showspectrum.c
AgeCommit message (Collapse)Author
2016-01-18avfilter/avf_showfreqs/showspectrum: rename skip_samples to hop_sizePaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-12avfilter/avf_showspectrum: reduce number of operationsPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-12avfilter/avf_showspectrum: add posibility to display phasePaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-10avf_showspectrum: Silence "deprecated pixel format" warningTimothy Gu
2016-01-09avfilter/avf_showspectrum: set color range to framePaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-08avfilter/avf_showspectrum: add cool color mapPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-08avfilter/avf_showspectrum: add option to draw legendPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-08lavfi/avf_showspectrum: replace pow(x, 0.25) by sqrt(sqrt(x))Ganesh Ajjanagadde
This is faster; precision assured as result is a float. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2016-01-05avfilter/window_func: add tukey window functionPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-05avfilter/avf_showspectrum: use av_clip/lrintfPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-05avfilter/avf_showspectrum: add yet another color mapPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-04avfilter/avf_showspectrum: add option to set gain for calculating color ↵Paul B Mahol
intensity Inspired by Sonic Visualizer. Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-04avfilter/avf_showspectrum: finally fix log scalerPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-04avfilter/avf_showspectrum: switch to FFTPaul B Mahol
Rationale: supports >16 bit audio, more than 96dB SNR. Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-02avfilter/avf_showspectrum: add 4th and 5th root scalerPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-02avfilter/avf_showspectrum: make some helper functionsPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-02avfilter/avf_showspectrum: fix null pointer dereference if allocation failsPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-02avfilter/avf_showspectrum: add fiery color mapPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-02avfilter: add showspectrumpic filterPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-01-02avfilter/avf_showspectrum: store win_size in private context and calculate ↵Paul B Mahol
it only once Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-31avfilter/avf_showspectrum: add window overlap supportPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-31avfilter/avf_showspectrum: add fire color mapPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-30avfilter/avf_showspectrum: add nebulae color mapPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-30avfilter/avf_showspectrum: add moreland color mapPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-29avfilter/avf_showspectrum: add rainbow colormapPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-29avfilter/avf_showspectrum: properly calculate w factorPaul B Mahol
It is used in calculating loudness of each frequency bin. Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-29avfilter/avf_showspectrum: add horizontal orientation supportPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-29avfilter/avf_showspectrum: use FF_ARRAY_ELEMS()Paul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-28avfilter/avf_showspectrum: make colors for log scale more user friendlyPaul B Mahol
Previosly output was almost useless because background noise, due to windowing function picked and which is not actually present in audio, had too much brightness. Now output of sine wave matches more with SoX. Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-28avfilter/avf_showspectrum: use ff_generate_window_funcPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-28avfilter/avf_showspectrum: add rscroll sliding modePaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-12-27lavfi/avf_showspectrum: replace rint by lrintGanesh Ajjanagadde
avoids float to int cast. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-10-30avfilter/avf_showspectrum: use log10 instead of log()/...Ganesh Ajjanagadde
This is likely more precise and conveys the intent better. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-10-14avfilter/all: propagate errors of functions from avfilter/formatsGanesh Ajjanagadde
Many of the functions from avfilter/formats can return errors, usually AVERROR(ENOMEM). This propagates the return values. All of these were found by using av_warn_unused_result, demonstrating its utility. Tested with FATE. I am least sure of the changes to avfilter/filtergraph, since I don't know what/how reduce_format is intended to behave and how it should react to errors. Fixes: CID 1325680, 1325679, 1325678. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Previous version Reviewed-by: Nicolas George <george@nsup.org> Previous version Reviewed-by: Clément Bœsch <u@pkh.me> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-10-07lavfi/avf_showspectrum: reindent after last commit.Nicolas George
2015-10-07lavfi/avf_showspectrum: remove looping on request_frame().Nicolas George
2015-08-06avfilter/avf_showspectrum: use av_calloc()Paul B Mahol
2015-08-04avfilter/avf_showspectrum: reindentPaul B Mahol
2015-03-02avfilter/avf_showspectrum: Change enums to int, which are accessed via ↵Michael Niedermayer
AVOption as int This fixes depending on implementation defined behavior Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-20avfilter/avf_showspectrum: fix colums typoMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-14lavfi/avf_showspectrum: check RDFT context init.Nicolas George
Fix a segfault with large window size.
2014-08-14lavfi/avf_showspectrum: add full frame sliding mode.Nicolas George
2014-08-14lavfi/avf_showspectrum: use automatic framing.Nicolas George
The framework can ensure that each input frame has exactly the correct number of samples, except the last one.
2014-08-14lavfi/avf_showspectrum: do not push the frame at EOF.Nicolas George
It is always identical to the last pushed frame. The samples in the last incomplete window were ignored, this is unchanged. Possible enhancement: pad the last incomplete window with silence.
2014-08-14lavfi/avf_showspectrum: fix output pts computation.Nicolas George
2014-08-14lavfi/avf_showspectrum: set output frame rate.Nicolas George
2014-06-22avfilter/avf_showspectrum: fix macro ()Michael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-20avfilter/showspectrum: use 0 dummies for range in const.Clément Bœsch
This is consistent with other options.
2013-11-20avfilter/showspectrum: reindent const options.Clément Bœsch
2013-11-20avfilter/showspectrum: add blackman window.Clément Bœsch
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