JPEG libraries

[Altera_Forum]

Hello All,  

 I am currently working on a project where I have to read image files (JPEG) from a USB and displaying them on the screen. I installed uClinux and I was wondering if you could give me an advice on what libraries to use for the JPEG decoding. Also, could we display the pics using an X window or not?  Thanks.  Bouyaka

[Altera_Forum]

Please check the wiki 

http://nioswiki.jot.com/wikihome/operating...ems/framebuffer (http://nioswiki.jot.com/wikihome/operatingsystems/framebuffer) If you use the DE2 board, you can read the USB disk as mass storage device, and display the JPEG file with nxview on nanoX window.

[Altera_Forum]

--- Quote Start ---  originally posted by hippo@Mar 29 2007, 08:25 PM please check the wiki http://nioswiki.jot.com/wikihome/operating...ems/framebuffer (http://nioswiki.jot.com/wikihome/operatingsystems/framebuffer) if you use the de2 board, you can read the usb disk as mass storage device, and display the jpeg file with nxview on nanox window. <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22641)  --- quote end ---    --- Quote End ---     Thanks for the prompt answer!! Do you have any good links with information on nxview ?  Thanks.  Bouyaka.

[Altera_Forum]

--- Quote Start ---  originally posted by bouyaka+mar 30 2007, 04:50 pm--><div class='quotetop'>quote (bouyaka @ mar 30 2007, 04:50 pm)</div>  --- quote start ---  <!--quotebegin-hippo@Mar 29 2007, 08:25 PM please check the wiki http://nioswiki.jot.com/wikihome/operating...ems/framebuffer (http://nioswiki.jot.com/wikihome/operatingsystems/framebuffer) if you use the de2 board, you can read the usb disk as mass storage device, and display the jpeg file with nxview on nanox window. <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22641)  --- quote end ---    --- Quote End ---     Thanks for the prompt answer!! Do you have any good links with information on nxview ?  Thanks.  Bouyaka. <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22685)</div> [/b]  --- Quote End ---    I tried following the instructions from the wiki http://nioswiki.jot.com/wikihome/operating...ems/framebuffer (http://nioswiki.jot.com/wikihome/operatingsystems/framebuffer) but I ran into this error when trying to run make in the uClinux-dist/  arch/nios2nommu/drivers/altfb.c: In function `altfb_probe&#39;: arch/nios2nommu/drivers/altfb.c:161: error: `na_vga_controller_0&#39; undeclared (first use in this function) arch/nios2nommu/drivers/altfb.c:161: error: (Each undeclared identifier is reported only once arch/nios2nommu/drivers/altfb.c:161: error: for each function it appears in.) make[2]: *** [arch/nios2nommu/drivers/altfb.o] Error 1 make[1]: *** [arch/nios2nommu/drivers] Error 2

[Altera_Forum]

--- Quote Start ---  originally posted by bouyaka@Mar 29 2007, 04:59 PM hello all,   i am currently working on a project where i have to read image files (jpeg) from a usb and displaying them on the screen. i installed uclinux and i was wondering if you could give me an advice on what libraries to use for the jpeg decoding. also, could we display the pics using an x window or not?  thanks.  bouyaka <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22636)  --- quote end ---    --- Quote End ---    Hi, Bouyaka  I will use USB Camera to read image(JPEG) on DE2 board. Can you tall me ,what kind usb camera is your used? It&#39;s need porting usb driver? Can you teach me? thanks NiosQ

[Altera_Forum]

--- Quote Start ---  originally posted by niosq+apr 2 2007, 03:07 am--><div class='quotetop'>quote (niosq @ apr 2 2007, 03:07 am)</div>  --- quote start ---  <!--quotebegin-bouyaka@Mar 29 2007, 04:59 PM hello all,   i am currently working on a project where i have to read image files (jpeg) from a usb and displaying them on the screen. i installed uclinux and i was wondering if you could give me an advice on what libraries to use for the jpeg decoding. also, could we display the pics using an x window or not?  thanks.  bouyaka <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22636)  --- quote end ---    --- Quote End ---    Hi, Bouyaka  I will use USB Camera to read image(JPEG) on DE2 board. Can you tall me ,what kind usb camera is your used? It&#39;s need porting usb driver? Can you teach me? thanks NiosQ <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22728)</div> [/b]  --- Quote End ---   I am using a normal USB storage device (flash drive) where JPEG pictures will be stored.

[Altera_Forum]

nxview is a demo program of nanoX. 

when you enable jpeg support in microwin/nanoX, the libjpeg will be selected. I updated the wiki.

[Altera_Forum]

--- Quote Start ---  Hello All,   I am currently working on a project where I have to read image files (JPEG) from a USB and displaying them on the screen. I installed uClinux and I was wondering if you could give me an advice on what libraries to use for the JPEG decoding. Also, could we display the pics using an X window or not?  Thanks.  Bouyaka  --- Quote End ---    Hi,Bouyaka, are you succesfull display the JPEG picture using nxview to VGA monitor?? Currently I also work a project same with you, if u succesfull make it can share experience to me? Thanks very much for reply =)