Re: [Libav-user] ALS encoder

2018-03-06 Thread Thilo Borgmann
Am 05.03.18 um 23:11 schrieb Sebastian Guttenberg:
>> Wrong list, you want ffmpeg-devel
> 
> Hey Paul, I'm confused, Carl Eugen just told me "No questions should ever be
> sent there" (to ffmpeg-devel)

Oleg's question is about GSoC participation and therefore relevant for
development and fine for devel. No user/usage questions shall be sent on devel.

-Thilo
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Re: [Libav-user] ALS encoder

2018-03-05 Thread Sebastian Guttenberg

Wrong list, you want ffmpeg-devel


Hey Paul, I'm confused, Carl Eugen just told me "No questions should 
ever be sent there" (to ffmpeg-devel)
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Re: [Libav-user] ALS encoder

2018-03-05 Thread Paul B Mahol
On 3/5/18, Oleg Khokhlov  wrote:
> Hi all.
>
> I am student and my name is Oleg. I work on qualification task for GSoC
> 2018.
> I should implement float-point support to als encoder.
>
> A have some questions:
> 1)In documentation was written
>
> "The floating-point sequence is modeled by the sum of an integer sequence
> multiplied by a constant (ACF: Approximate Common Factor) and a
> residual sequence."
>
> and in another part was written:
>
> "If the input signal is 32-bit floating-point, input values are
> decomposed  into three
> parts: An estimated common multiplier A, a truncated integer
> multiplicand sequence Y,
> and a difference signal Z.".
>
> Can somebody explain what is ACF (I don`t find definition of this term
> in google)
> and how I can compute it?
>
> 2)What is the best method for testing encoder?
>
>
> Link to documentation.
> (https://drive.google.com/open?id=1iMqwUrhzdhWhm-IdNXx2P3djvS0wCtDt)
>
> Oleg.
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Wrong list, you want ffmpeg-devel
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