[FFmpeg-devel] [PATCH] QCELP decoder

[Kenan Gillet]

Hi,
On Oct 2, 2008, at 2:25 PM, Vitor Sessak wrote:
>
> For codecs that were supposed to be converted to signed 16-bit at some
> point should be indeed between -1. and 1.. A good way to test if did  
> not
> do something wrong is to decode a sample to wav and see if your change
> changes the result. It should either don't change or change a  
> negligible
> amount (see tests/tiny_psnr for evaluating how much it has changed).
>
 From the samples,
101.mov
codeblue-interrupt01.mov
codeblue-interrupt06.mov
codeblue-plot08motor.mov
installfect_export.mov
oldepisode.mov
schlangenmannliten.mov
surge-1-16-B-Qclp.mov
8fe3b9dcd6d7e6db3375521c5c1b_Video_041606_002.3g2
Test3gpp-mp4a.3g2
c8wwz2m0.3g2
qtaudio-qcelp-problem.3g2
test.3g2
tube.3g2
zg3dx2d6.3g2
vidoo_MP4_audio_Qcelp13k.k3g
tiny_psnr gives:
stddev:    0.00 PSNR:999.99 bytes:   250284/   250284



For blue_earth.mov,tiny_psnr gives:
stddev:  119.57 PSNR:  6.57 bytes: 19681324/ 19681324

For h263.mov, tiny_psnr gives:
stddev:   73.51 PSNR: 10.79 bytes: 13511404/ 13511404

is it still ok, or is something wrong?

thanks

Kenan