[FFmpeg-devel] ALS encoder
Paul B Mahol
onemda at gmail.com
Tue Mar 6 16:44:12 EET 2018
On 3/5/18, Oleg Khokhlov <olegish at gmail.com> wrote:
> Hi all.
> I am student and my name is Oleg. I work on qualification task for GSoC
> I should implement float-point support to als encoder.
Isn't that a little too much for qualification task?
> 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.
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
More information about the ffmpeg-devel