[Ffmpeg-cvslog] r5451 - in trunk/libavcodec: adpcm.c utils.c

[Loren Merritt]

On Sat, 3 Jun 2006, lorenm wrote:

> Modified:
>   trunk/libavcodec/adpcm.c
>   trunk/libavcodec/utils.c
>
> Log:
> ADPCM: trellis quantization

input file: 265 seconds, 44kHz, stereo
ffmpeg -i higurashi.wav -acodec adpcm_yamaha -trellis $N -y out.wav
trellis:0  psnr:47.306  time:   1.60
trellis:1  psnr:47.887  time:   9.90
trellis:2  psnr:48.398  time:  22.91
trellis:3  psnr:48.788  time:  53.95
trellis:4  psnr:49.085  time: 131.91
trellis:5  psnr:49.325  time: 361.93
trellis:6  psnr:49.526  time:1117.01
trellis:7  psnr:49.694  time:3733.65

--Loren Merritt