On 10.05.2017 09:12, Muhammad Faiz wrote:
On Wed, May 10, 2017 at 1:55 AM, Paul B Mahol <g...@videolan.org> wrote:
ffmpeg | branch: master | Paul B Mahol <one...@gmail.com> | Thu Jan 26 17:03:08 
2017 +0100| [49bbfb9d13936ee8bb7fee9983ca3710dc683a2e] | committer: Paul B Mahol

avfilter: add arbitrary audio FIR filter

Signed-off-by: Paul B Mahol <one...@gmail.com>

http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=49bbfb9d13936ee8bb7fee9983ca3710dc683a2e
---

 configure                      |   3 +
 doc/filters.texi               |  43 ++++
 libavfilter/Makefile           |   1 +
 libavfilter/af_afir.c          | 535 +++++++++++++++++++++++++++++++++++++++++
 libavfilter/af_afir.h          |  83 +++++++
 libavfilter/allfilters.c       |   1 +
 libavfilter/version.h          |   2 +-
 libavfilter/x86/Makefile       |   2 +
 libavfilter/x86/af_afir.asm    |  60 +++++
 libavfilter/x86/af_afir_init.c |  35 +++
 10 files changed, 764 insertions(+), 1 deletion(-)

 [...]

segfault with this filtergraph

aevalsrc        = 'if(n, 0, 1)',
firequalizer    =
    delay       = 0.023:
    fixed       = off:
    wfunc       = nuttall:
    gain        = 'if(between(f, 1000, 5000), -INF, 0)',
atrim = end_sample = 2048 [ir];

aevalsrc='0.5*sin(3000*t*t)':d=10.3 [data];

[data][ir]
afir

Not really related to this report, but in general it would be nice to have some fate tests for the afir filter.

Regards,
Tobias

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