[FFmpeg-soc] [PATCH] AMR-WB Decoder

Marcelo Galvão Póvoa marspeoplester at gmail.com
Thu Sep 9 04:19:27 CEST 2010


On 8 September 2010 23:10, Ronald S. Bultje <rsbultje at gmail.com> wrote:
> Hi,
>
> 2010/9/8 Marcelo Galvão Póvoa <marspeoplester at gmail.com>:
>> $ ./tests/tiny_psnr ~/my_pod.wav ~/ref_pod.wav 2
>> stddev:   95.62 PSNR: 56.72 MAXDIFF: 5529 bytes: 76480640/ 76480640
>>
>> By removing the fractional part of the excitation as AMR-NB does, the
>> result was slightly better:
>> $ ./tests/tiny_psnr ~/my_pod2.wav ~/orig_pod.wav 2
>> stddev: 2589.73 PSNR: 28.06 MAXDIFF:39639 bytes: 76480640/ 76480660
>
> That isnt better, much worse.
>

You are comparing different kind of tests I did. This 95.62 came from
the comparison between the output of my decoder and the reference
decoder. The comparison against the original source as suggested by
Vitor are those lines with "orig_pod.wav" in it. The stddev came down
from 2600.02 to 2589.73


-- 
Marcelo


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