[FFmpeg-user] Dynaudnorm & earwax filters

Ronak ronak2121 at yahoo.com
Wed Dec 12 18:33:26 EET 2018

> On Dec 12, 2018, at 11:26 AM, Paul B Mahol <onemda at gmail.com> wrote:
> On 12/12/18, Ronak <ronak2121-at-yahoo.com at ffmpeg.org> wrote:
>>> On Dec 12, 2018, at 8:32 AM, Nicolas George <george at nsup.org> wrote:
>>> Ronak (2018-12-11):
>>>> Ok thanks. I tried to use this filter in my iOS code; but I'm getting
>>>> errors with an error code -35.
>>>> This is my code that tries to write data into the filter graph and
>>>> reads it back; what am I doing wrong?
>>> I do not read whatever language that is, but at the very least your code
>>> is missing the translation error code -> error message.
>> I found out what my problem is; it's that the dynaudnorm filter is returning
>> EAGAIN; which means I need to send it more PCM frames.
>> Now, I'm trying to integrate this filter into a real time player context;
>> and I would like to avoid audio artifacts. I've been playing with various
>> options that the filter has; but I can't seem to find one where it would
>> work better in the real time context.
>> Does anyone know what the correct parameters would be so it works frame by
>> frame or in a much smaller frame size so we can avoid audio artifacts?
>> Alternatively, is there another ffmpeg filter better suited to real time
>> dynamic range compression or volume normalization?
> If you read documentation of filter options you would know.

I already did and tried all sorts of things. I've tried options like: "f=500:g=3:m=10:n=1:b=1", "f=40:g=3:m=10:n=1:b=1". I've even tried the extreme: "f=8000:g=3:m=10:n=1:b=1"

But I still get back lots of EAGAIN.

> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".

More information about the ffmpeg-user mailing list