[Ffmpeg-devel] [PATCH] ported SGI decoder to the new API

[Xiaohui Sun]

Michael Niedermayer wrote:
> Hi
>
> On Fri, Apr 06, 2007 at 08:30:05PM +0200, Diego Biurrun wrote:
>   
>> On Sat, Apr 07, 2007 at 12:03:37AM +0800, Xiaohui Sun wrote:
>>     
>>> patch updated.
>>>
>>> Diego Biurrun wrote:
>>>       
>>>> On Fri, Apr 06, 2007 at 12:34:05AM +0800, Xiaohui Sun wrote:
>>>>  
>>>>         
>>>>> patch updated.
>>>>>
>>>>> --- libavcodec/sgidec.c	(revision 0)
>>>>> +++ libavcodec/sgidec.c	(revision 0)
>>>>> @@ -0,0 +1,267 @@
>>>>> +
>>>>> +#include "sgi.h"
>>>>>           
>>>> Where is sgi.h ???
>>>>         
>>> Sorry , I forgot attach it, try this new patch.
>>>       
>> Patch applied.
>>     
>
> the code doesnt work (see regresion tests, encoding does something
> but decoding does just produce
>
> ffmpeg -i b-libav02.sgi -y test.avi
> FFmpeg version SVN-r8635, Copyright (c) 2000-2007 Fabrice Bellard, et al.
>   configuration: --enable-pthreads --cc=/home/michael/bin/colorgcc --enable-libmp3lame --enable-liba52 --enable-libvorbis --enable-libfaad --enable-gpl --enable-libogg --enable-libfaac --enable-x264
>   libavutil version: 49.4.0
>   libavcodec version: 51.40.2
>   libavformat version: 51.11.0
>   built on Apr  6 2007 22:26:57, gcc: 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)
> Input #0, image2, from 'b-libav02.sgi':
>   Duration: 00:00:00.0, start: 0.000000, bitrate: N/A
>   Stream #0.0: Video: sgi, rgb24, 352x288, 25.00 fps(r)
> Output #0, avi, to 'test.avi':
>   Stream #0.0: Video: mpeg4, yuv420p, 352x288, q=2-31, 200 kb/s, 25.00 fps(c)
> Stream mapping:
>   Stream #0.0 -> #0.0
> Press [q] to stop encoding
> Error while decoding stream #0.0
> frame=    0 fps=  0 q=0.0 Lsize=       6kB time=10000000000.0 bitrate=   0.0kbits/s    
> video:0kB audio:0kB global headers:0kB muxing overhead inf%
>   

I think the problem lies in the RLE encoding, which should count up to 
127 consecutive pixels and I have sent the path before.
Please use the attached path and have a test, thanks.

> [...]
>   
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