[FFmpeg-devel] [PATCH] avfilter/af_silenceremove: add optional tone when silence is removed
growe at shoretel.com
Fri Oct 14 23:55:51 EEST 2016
> On Fri, Oct 14, 2016 at 18:09:51 +0000, Greg Rowe wrote:
> You attached the old patch. ;-)
>> Is there a good way to generate the tone while avoiding floating
>> point operations?
Well that's embarrassing. I'll fix that after we figure out how best to
handle the tone generation. :)
> Good point: libavfilter/asrc_sine.c does exactly that, if I understand
> the code correctly. And avoids math.h's sin() by creating a lookup
> table. (I'm not sure whether your patch should have included math.h
> explicitly. It was probably pulled in via avutil headers.)
> Now I think you would be duplicating some stuff from there. Perhaps
> something to be put into common functions and reused?
I saw that today. There is also ff_generate_wave_table which I *think*
is applicable but I'm not certain and didn't have the time yet to play with.
>> I removed the unrelated changes.
> They might be worthwhile anyway, later then.
I'll submit a patch for those changes after this one get straightened
out. I have a patch I'd like to submit for the Sky Media format (a
container format we use at Shoretel). I thought I'd get my feet wet
with this change first!
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