Hi, Its confusing me......
Let me give your data.... In my system, I just decode MPEG-4 Data and get YUV420 on D1 resolution.. Now What I am doing is Just get one Frame of YUV420 data from decoder (YUV420 => [YYYYYYYYYY....][UUUUUU...][VVVVV....] then convert that YUV420 to YUV422 using saCCV420_422 and then I use the converted YUV422 to display unit using saDisplay. I get Luma data properly out on screen but never get Chroma. Actually I use Decoder Demo Application which made for HD. I have able to display the HD Decoded data comes with demo and display it on SD unit. But when I use my customized decoded on D1 resolution I am not getting anything on screen. So I want to debug the issue using saDisplay then update it on applicayion. I hope you got me in a right way... Looking forward to fix this issue. Regards, Vinayagam M On Sat, Aug 1, 2009 at 3:12 AM, Jadav, Brijesh R <brijes...@ti.com> wrote: > Hello Murali, > > DM6467 supports NV16 video format, where image is stored in two buffers. > First buffer contains luma data and second buffer contains cb and cr > interleaved data. It does not support completele YUV422 interleaved data. > > You are right, chroma buffer pointer could also be an problem. Display > driver always expects chroma data at the half of the buffer size. > > Thanks, > Brijesh Jadav > ________________________________________ > From: Karicheri, Muralidharan > Sent: Friday, July 31, 2009 10:34 AM > To: Jadav, Brijesh R; Vinayagam Mariappan > Cc: Davinci-linux-open-source@linux.davincidsp.com > Subject: RE: saDisplay + DM6467 showing black an white image in SD Display > > Brijesh, > > DM6467 display accept YUV422 planar. The format is YUV422 => > [YYYYYYYYYYYYYYYY][UUUUU][VVVVV]. > as given by Vinayagam. > > If you are seeing black and white image, it is probably because your cbcr > offer is not correct. > The display driver in expects cbcr offset at half kernel buffer size (MMAP) > and half of sizeimage for UserPTR. > I have been working to port the code to GIT and this is what I have > understood. > > Murali Karicheri > Software Design Engineer > Texas Instruments Inc. > Germantown, MD 20874 > Phone : 301-515-3736 > email: m-kariche...@ti.com > ________________________________ > From: davinci-linux-open-source-bounces+m-karicheri2=ti.com@ > linux.davincidsp.com [mailto: > davinci-linux-open-source-bounces+m-karicheri2<davinci-linux-open-source-bounces%2Bm-karicheri2> > =ti....@linux.davincidsp.com] On Behalf Of Jadav, Brijesh R > Sent: Friday, July 31, 2009 8:42 AM > To: Vinayagam Mariappan > Cc: Davinci-linux-open-source@linux.davincidsp.com > Subject: RE: saDisplay + DM6467 showing black an white image in SD Display > > Hi, > > DM6467 display module accepts data in the YUV422 semi-planar format. It is > as shown below > > YUV422 => [YYYYYYYYYYYYYYYY][UVUVUVUVUV]. > Probably, this is reason why you are not getting correct color information. > > Thanks,, > Brijesh Jadav > > ________________________________ > From: Vinayagam Mariappan [mailto:vinayagamenm...@gmail.com] > Sent: Friday, July 31, 2009 6:08 PM > To: Jadav, Brijesh R > Cc: Davinci-linux-open-source@linux.davincidsp.com > Subject: Re: saDisplay + DM6467 showing black an white image in SD Display > > Hi, > > YUV422 => [YYYYYYYYYYYYYYYY][UUUUU][VVVVV]. > > How about YUV420....I have my own MPEG-4 Decoder which gives out YUV420 > with D1 resolution. > > I am using TI Sample Application to Interface with our own MPEG-4 Decoder > Server. I get my YUV data to application but I am not able to display it. > > Where do I making mistake? > > Regards, > Vinayagam M > On Fri, Jul 31, 2009 at 9:31 PM, Jadav, Brijesh R <brijes...@ti.com > <mailto:brijes...@ti.com>> wrote: > > Hi, > > > > What is the format of your YUV422 file? DM6467 supports only YUV422 > Semi-Planar format. > > > > Thanks, > > Brijesh Jadav > > > > ________________________________ > > From: Vinayagam Mariappan [mailto:vinayagamenm...@gmail.com<mailto: > vinayagamenm...@gmail.com>] > Sent: Friday, July 31, 2009 5:57 PM > To: Jadav, Brijesh R > Cc: Davinci-linux-open-source@linux.davincidsp.com<mailto: > Davinci-linux-open-source@linux.davincidsp.com> > Subject: Re: saDisplay + DM6467 showing black an white image in SD Display > > > > Hi, > > Yes, I know... > But I have modified to play with YUV422 sample. I get only Luma not > chroma.... > > I am just fulling the buffer with YUV422 Data. > > Regards, > Vinayagam M > > On Fri, Jul 31, 2009 at 9:19 PM, Jadav, Brijesh R <brijes...@ti.com > <mailto:brijes...@ti.com>> wrote: > > Hi, > > > > As far as I remember, this application does not work the sample image. > Application actually generates color bar and displays it. > > > > Thanks, > > Brijesh Jadav > > > > ________________________________ > > From: davinci-linux-open-source-boun...@linux.davincidsp.com<mailto: > davinci-linux-open-source-boun...@linux.davincidsp.com> [mailto: > davinci-linux-open-source-boun...@linux.davincidsp.com<mailto: > davinci-linux-open-source-boun...@linux.davincidsp.com>] On Behalf Of > kirthika varadarajan > Sent: Friday, July 31, 2009 3:28 PM > To: Davinci-linux-open-source@linux.davincidsp.com<mailto: > Davinci-linux-open-source@linux.davincidsp.com> > Subject: saDisplay + DM6467 showing black an white image in SD Display > > > > We tried displaying yuv4::2:2(740x480) image in SD display using > saDisplay(application sample ibn PSP), > > But we are getting black and white image even if we input color image. > > We tried the sample file given in PSP. > > > > But black. > > > > we are curious to know how to get the color SD display. > > > > _______________________________________________ > Davinci-linux-open-source mailing list > Davinci-linux-open-source@linux.davincidsp.com<mailto: > Davinci-linux-open-source@linux.davincidsp.com> > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > > > > -- > Regards, > Vinayagam M > > VeNMSOL Technologies, > > #7A, First Cross Street, Ganapathy Colony, > > Ekkaduthangal, Chennai - 600 032,India. > > Tel:+91-44-4353 0168;Mobile:+91-9445-019919 > > URL: www.venmsol.com<http://www.venmsol.com> > "We make a living by what we get, we make a life by what we give...- > Unknown " > > > > -- > Regards, > Vinayagam M > > VeNMSOL Technologies, > > #7A, First Cross Street, Ganapathy Colony, > > Ekkaduthangal, Chennai - 600 032,India. > > Tel:+91-44-4353 0168;Mobile:+91-9445-019919 > > URL: www.venmsol.com<http://www.venmsol.com> > "We make a living by what we get, we make a life by what we give...- > Unknown " > -- Regards, Vinayagam M VeNMSOL Technologies, #7A, First Cross Street, Ganapathy Colony, Ekkaduthangal, Chennai - 600 032,India. Tel:+91-44-4353 0168;Mobile:+91-9445-019919 URL: www.venmsol.com "We make a living by what we get, we make a life by what we give...- Unknown "
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