Hello Gert,

I am glad to hea that you do not have the memoryacesserror.
I have also already tryed without any -O infer parameter since CAP is default 
but I still get the same problem. :(
Maybe the problem only shows up because I use an AMD-Athlon64-3200+-Prozessor 
and I have heared that mjpegtools have a problem with AMD-CPUs and mmx.
Is there already a new version available as debianpackages which has no 
problems with AMD-CPUs?

beye

chriwi


[EMAIL PROTECTED] wrote:
> Hello Gert,
>
> thank you for your Tip, 
>
>   
>> djpeg 20070225_2710.JPG  | ppmtoy4m -r -n 200 -F 25:1 | y4mscaler -I 
>> sar=1:1 -O preset=DVD -O infer=PRESERVE_X -O infer=EXACT | mpeg2enc -f 8 
>> -o photo.m2v
>>     
>>
>> works fine and the resault is almost what I want, only the 
>> parameter "-O infer=PERSERVE_X" leeds to the oversize in Y will be 
>> clipped what I don't like, Indeed, I didn't notice this before, but 
>> it seems that indeed it clips in the Y direction. When I do use "-O 
>> infer=PERSERVE_Y" I get  small black bars left and right. Actually, 
>> this is strange since the photo's from my digital camera have a 4:3 
>> ratio and PAL also has a 4:3 ratio, so I what expect it to fill the 
>> full video frame without any clipping or black bars.
>> but when I use "-O infer=PERSERVE_Y" or "-O infer=PAD" than the 
>> script produces "memoryaccesserror 4952" for every conversion, how 
>> can I avoid this and can I get padded MPEG-immages with black bars 
>> for the space not used?
>>
>>   


> Tried both options and they seem to work fine here, I do not get a 
> "memoryacesserror".

> If I use y4mscaler without these options it will also add black bars 
> if needed, just tried it with a photo in portrait format and it gives 
> me black bars left and right:
> djpeg IMG_5171.JPG  | ppmtoy4m -r -n 200 -F 25:1 | 
> y4mscaler -I sar=1:1 -O preset=DVD | mpeg2enc -f 8  -o photo3.m2v

> But, it also adds small black bars on the bottom and top, to remove 
> these I needed to specify  "-O infer=PRESERVE_Y -O infer=EXACT".

>    Gert

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