* YUV422 input to CPI? @ 2012-04-19 21:56 Simon Knopp 2012-04-20 10:26 ` Enrico 0 siblings, 1 reply; 6+ messages in thread From: Simon Knopp @ 2012-04-19 21:56 UTC (permalink / raw) To: linux-omap, General mailing list for gumstix users. Hi all, I have a camera module capable of outputting YUV422 over a parallel interface. I've been having some issues interfacing this to a Gumstix. Reading through the OMAP3530 tech ref, I'm now beginning to wonder whether it is actually possible to input YUV422 to the CPI? - Section 12.1.1 mentions RGB and YeCyMgG for "image sensors"; YUV is only mentioned for CS1&2. - On the other hand, 12.4.6.1 says that the CCDC accepts YUV data in numerous formats. Is anyone able to confirm whether it's possible to input YUV422 to the CPI? Thanks, Simon ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: YUV422 input to CPI? 2012-04-19 21:56 YUV422 input to CPI? Simon Knopp @ 2012-04-20 10:26 ` Enrico 2012-04-22 14:11 ` Hiremath, Vaibhav 0 siblings, 1 reply; 6+ messages in thread From: Enrico @ 2012-04-20 10:26 UTC (permalink / raw) To: Simon Knopp; +Cc: linux-omap, General mailing list for gumstix users. On Thu, Apr 19, 2012 at 11:56 PM, Simon Knopp <simon.knopp@pg.canterbury.ac.nz> wrote: > Hi all, > > I have a camera module capable of outputting YUV422 over a parallel interface. I've been having some issues interfacing this to a Gumstix. Reading through the OMAP3530 tech ref, I'm now beginning to wonder whether it is actually possible to input YUV422 to the CPI? > > - Section 12.1.1 mentions RGB and YeCyMgG for "image sensors"; YUV is only mentioned for CS1&2. > - On the other hand, 12.4.6.1 says that the CCDC accepts YUV data in numerous formats. > > Is anyone able to confirm whether it's possible to input YUV422 to the CPI? Yes it's possible but yuv support is still not in mainline kernel. Have a look at the linux-media ml archive to know what is the current status, problems etc...basically if you don't need bt656 support you can try the omap3isp-omap3isp-yuv branch at [1]. Enrico [1]: http://git.linuxtv.org/pinchartl/media.git -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: YUV422 input to CPI? 2012-04-20 10:26 ` Enrico @ 2012-04-22 14:11 ` Hiremath, Vaibhav 2012-04-23 3:18 ` Simon Knopp 2012-04-23 7:31 ` Enrico 0 siblings, 2 replies; 6+ messages in thread From: Hiremath, Vaibhav @ 2012-04-22 14:11 UTC (permalink / raw) To: Enrico, Simon Knopp; +Cc: linux-omap, General mailing list for gumstix users. On Fri, Apr 20, 2012 at 15:56:46, Enrico wrote: > On Thu, Apr 19, 2012 at 11:56 PM, Simon Knopp > <simon.knopp@pg.canterbury.ac.nz> wrote: > > Hi all, > > > > I have a camera module capable of outputting YUV422 over a parallel interface. I've been having some issues interfacing this to a Gumstix. Reading through the OMAP3530 tech ref, I'm now beginning to wonder whether it is actually possible to input YUV422 to the CPI? > > > > - Section 12.1.1 mentions RGB and YeCyMgG for "image sensors"; YUV is only mentioned for CS1&2. > > - On the other hand, 12.4.6.1 says that the CCDC accepts YUV data in numerous formats. > > > > Is anyone able to confirm whether it's possible to input YUV422 to the CPI? > > Yes it's possible but yuv support is still not in mainline kernel. > > Have a look at the linux-media ml archive to know what is the current > status, problems etc...basically if you don't need bt656 support you > can try the omap3isp-omap3isp-yuv branch at [1]. > During one of the internal releases, I have added YUV (BT656) support, it is based on 2.6.37 based kernel, but still it will give you pointer and help you to change the code to get support for the same. I have created separate, clean and independent patches for adding support for BT656 YUV support. http://arago-project.org/git/projects/?p=linux-omap3.git;a=history;f=drivers/media/video/isp;hb=20c003f2f024d9f50f59edf9f1b8f5f035fb15b8 Thanks, Vaibhav > Enrico > > [1]: http://git.linuxtv.org/pinchartl/media.git > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: YUV422 input to CPI? 2012-04-22 14:11 ` Hiremath, Vaibhav @ 2012-04-23 3:18 ` Simon Knopp 2012-04-23 5:24 ` Hiremath, Vaibhav 2012-04-23 7:31 ` Enrico 1 sibling, 1 reply; 6+ messages in thread From: Simon Knopp @ 2012-04-23 3:18 UTC (permalink / raw) To: Hiremath, Vaibhav, Enrico Cc: linux-omap, General mailing list for gumstix users. On 23/04/2012, at 2:11 AM, Hiremath, Vaibhav wrote: > On Fri, Apr 20, 2012 at 15:56:46, Enrico wrote: >> >> Yes it's possible but yuv support is still not in mainline kernel. >> >> Have a look at the linux-media ml archive to know what is the current >> status, problems etc...basically if you don't need bt656 support you >> can try the omap3isp-omap3isp-yuv branch at [1]. >> > > During one of the internal releases, I have added YUV (BT656) support, it is > based on 2.6.37 based kernel, but still it will give you pointer and help > you to change the code to get support for the same. > > I have created separate, clean and independent patches for > adding support for BT656 YUV support. > > > http://arago-project.org/git/projects/?p=linux-omap3.git;a=history;f=drivers/media/video/isp;hb=20c003f2f024d9f50f59edf9f1b8f5f035fb15b8 > > > Thanks, > Vaibhav > >> Enrico >> >> [1]: http://git.linuxtv.org/pinchartl/media.git Thanks Enrico and Vaibhav. My current setup uses an old version of the isp code for kernel 2.6.34 from a patch in the linux-omap3-caspapx OpenEmbedded recipe for Gumstix (not ideal, but I need gstreamer dsp support). I'm not sure which commit/branch/tree/patchset this is based on, but it turns out it does support YUV. Regards, Simon. ^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: YUV422 input to CPI? 2012-04-23 3:18 ` Simon Knopp @ 2012-04-23 5:24 ` Hiremath, Vaibhav 0 siblings, 0 replies; 6+ messages in thread From: Hiremath, Vaibhav @ 2012-04-23 5:24 UTC (permalink / raw) To: Simon Knopp, Enrico; +Cc: linux-omap, General mailing list for gumstix users. On Mon, Apr 23, 2012 at 08:48:35, Simon Knopp wrote: > On 23/04/2012, at 2:11 AM, Hiremath, Vaibhav wrote: > > On Fri, Apr 20, 2012 at 15:56:46, Enrico wrote: > >> > >> Yes it's possible but yuv support is still not in mainline kernel. > >> > >> Have a look at the linux-media ml archive to know what is the current > >> status, problems etc...basically if you don't need bt656 support you > >> can try the omap3isp-omap3isp-yuv branch at [1]. > >> > > > > During one of the internal releases, I have added YUV (BT656) support, it is > > based on 2.6.37 based kernel, but still it will give you pointer and help > > you to change the code to get support for the same. > > > > I have created separate, clean and independent patches for > > adding support for BT656 YUV support. > > > > > > http://arago-project.org/git/projects/?p=linux-omap3.git;a=history;f=drivers/media/video/isp;hb=20c003f2f024d9f50f59edf9f1b8f5f035fb15b8 > > > > > > Thanks, > > Vaibhav > > > >> Enrico > >> > >> [1]: http://git.linuxtv.org/pinchartl/media.git > > Thanks Enrico and Vaibhav. > > My current setup uses an old version of the isp code for kernel 2.6.34 from a patch in the linux-omap3-caspapx OpenEmbedded recipe for Gumstix (not ideal, but I need gstreamer dsp support). I'm not sure which commit/branch/tree/patchset this is based on, but it turns out it does support YUV. > That's even closer then, it would be easier to back port from 2.6.37 to 2.6.34. And as I said, refer to it as a reference or pointer to backport it, and patch commit description should help you to understand this. Thanks, Vaibhav > Regards, > Simon. > > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: YUV422 input to CPI? 2012-04-22 14:11 ` Hiremath, Vaibhav 2012-04-23 3:18 ` Simon Knopp @ 2012-04-23 7:31 ` Enrico 1 sibling, 0 replies; 6+ messages in thread From: Enrico @ 2012-04-23 7:31 UTC (permalink / raw) To: Hiremath, Vaibhav; +Cc: linux-omap On Sun, Apr 22, 2012 at 4:11 PM, Hiremath, Vaibhav <hvaibhav@ti.com> wrote: > During one of the internal releases, I have added YUV (BT656) support, it is > based on 2.6.37 based kernel, but still it will give you pointer and help > you to change the code to get support for the same. > > I have created separate, clean and independent patches for > adding support for BT656 YUV support. > > http://arago-project.org/git/projects/?p=linux-omap3.git;a=history;f=drivers/media/video/isp;hb=20c003f2f024d9f50f59edf9f1b8f5f035fb15b8 >From the known issue: "- stream on works with interlaced artifacts on screen" Do you know if it's possible to do something in hardware for this? Right now i'm doing software deinterlacing, maybe something can be done in omap3 isp or tvp5151? Enrico ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-04-23 7:31 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-04-19 21:56 YUV422 input to CPI? Simon Knopp 2012-04-20 10:26 ` Enrico 2012-04-22 14:11 ` Hiremath, Vaibhav 2012-04-23 3:18 ` Simon Knopp 2012-04-23 5:24 ` Hiremath, Vaibhav 2012-04-23 7:31 ` Enrico
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.