[FFmpeg-devel] pixel format convertion yuv422p->yuv420p->yuv411p->yuv422p degrade picture

[Maksym Veremeyenko]

Ivo ???????(??):
> On Wednesday 16 July 2008 13:18, Maksym Veremeyenko wrote:
>> What tests more should i make?
> 
> As Michael Niedermayer already asked, it would help to know whether you used 
> the old converter or swscale (compile with ./configure --enable-swscale).

I compiled ffmpeg without --enable-swscale :

FFmpeg version SVN-r14255, Copyright (c) 2000-2008 Fabrice Bellard, et al.
   configuration: --prefix=/home/verem/enctools --enable-shared 
--enable-gpl --enable-postproc --enable-avfilter --enable-pthreads
   libavutil version: 49.7.0
   libavcodec version: 51.60.0
   libavformat version: 52.17.0
   libavdevice version: 52.0.0
   libavfilter version: 0.0.0
   built on Jul 16 2008 17:50:28, gcc: 4.1.1 20060525 (Red Hat 4.1.1-1)

I found no degrades in cyclic pix_fmt converting.

I attached scripts and source file for testing. That should be placed in 
tree like:

.
|-- 420-411
|   `-- do_420-411.sh
|-- 422-411
|   `-- do_422-411.sh
|-- 422-420
|   `-- do_422-420.sh
`-- src.png

What tests could be done more?


-- 
________________________________________
Maksym Veremeyenko
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