[FFmpeg-devel] ALS encoder
omerjerk at gmail.com
Tue Mar 6 19:40:42 EET 2018
On Tue, Mar 6, 2018 at 8:14 PM, Paul B Mahol <onemda at gmail.com> wrote:
> 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?
We can take into account the difficulty along with the completion
percentage of the task while making the final decision.
>> 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
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