[FFmpeg-soc] ALAC Benchmarks

[Justin Ruggles]

Jai Menon wrote:
> Hi,
> 
> On Thursday 21 Aug 2008 9:06:59 pm Guillaume POIRIER wrote:
>> Hello,
>>
>> On Wed, Aug 20, 2008 at 6:52 PM, Jai Menon <realityman at gmx.net> wrote:
>>> On Wednesday 20 Aug 2008 9:33:25 pm Guillaume POIRIER wrote:
>>>> I have a question about your ALAC encoder: since this is a lossless
>>>> compression, is it safe to assume that no listening test is needed to
>>>> compare your encoder to other encoders?
>>>>
>>>> Guillaume
>>> Yes. The decoded output is bitexact to the original source. You could do
>>> ABX tests to convince yourself though :-)
>> Ok. Would your mind giving me a sample commandline to compress a WAV
>> to ALAC? I imagine that there are several options that control your
>> ALAC encoder that need to be tried out?
> 
> There are options to select min and max prediction orders but till I finish 
> tuning the encoder completely, you could try something like :

I have some samples that are not 100% lossless when encoded with higher
prediction orders.  This is something that I think will be worked out
eventually.  For now, the default settings would be the best thing to test.

-Justin