[FFmpeg-devel] [PATCH] avcodec/wmalosslessdec: real 24bit support

Paul B Mahol onemda at gmail.com
Tue Apr 12 23:29:42 CEST 2016


On 4/12/16, Paul B Mahol <onemda at gmail.com> wrote:
> On 4/12/16, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
>> Paul B Mahol <onemda <at> gmail.com> writes:
>>
>>>
>>> Hi,
>>>
>>> patch attached.
>>
>> Very cool!
>>
>>> -        pred += s->dsp.scalarproduct_and_madd_int16(s->cdlms[ch]
>>> +        pred += scalarproduct_and_madd_int(s->cdlms[ch][ilms].coefs,
>>
>> Doesn't this lead to a speedloss for 16 bit decoding?
>
> It does, havent checked how much.

40x vs 72x realtime.


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