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yuv420 sp to RGB 888 conversion on DM 8148

Pradeep Acharya
Intellectual 930 points

Hi All,
       I'm developing a soft video phone on DM8148 whiuuch can use the hdvicp and hdvpss modules to encode/decode,color space conversion
features.I want to convert the decoded video which is yuv 420 sp to rgb 888 format.After seeing the hdvpss document,
i could not find a way to convert yuv420sp to rgb 888.

After analyzing the hd_vpss varchitecture, the only way in which i could get it done is  
memory---> Primary/Auxillary video path (DEI module)--->video port 0/1 ---> memory. does this solution works ??

I do not have camera on parallel interface but i want to use it only as a scalar and format conversion. I tried this way but could not
succeed. Is there any alternate way in way in which i can get this conversion done ??

regarding
pradeep

  • 0
    TI__Mastermind 20245 points

    Hi,

    Any reason for converting from YUV to RGB.

    Pradeep Acharya said:
    After analyzing the hd_vpss varchitecture, the only way in which i could get it done is  
    memory---> Primary/Auxillary video path (DEI module)--->video port 0/1 ---> memory. does this solution works ??

    This driver is not supported in media controller binary.

    Pradeep Acharya said:
    I do not have camera on parallel interface but i want to use it only as a scalar and format conversion. I tried this way but could not
    succeed. Is there any alternate way in way in which i can get this conversion done ??

    This driver is also not supported as of now.

    Regards,

    Hardik Shah

  • 0 in reply to HardikShah
    Intellectual 930 points

    I want to display the decoded video using x windows i,,e we would be having linaro running on DM 8148 and our soft phone should display decoded video in a Xwindow. The xwindow manager expects the image to be in rgb format. I want the yuv--> rgb conversion to be done in h/w rather than in s/w that's why i was checking how could i achieve it on DM 8148?

  • 0 in reply to Pradeep Acharya
    Intellectual 930 points

    Hi Hardik,

    Thanks for the reply. I've questions based on your answer

                  Hardik ::  This driver is also not supported as of now.

                  Pradeep: Do you mean to say that        memory---> Primary/Auxillary video path (DEI module)--->video port 0/1 ---> memory can be used as scalar and format converter module ??   Do you mean to say that it's only a s/w (driver)  that is not supporting   this feature  but h/w supports it ?? Is so when can i expect the driver to support it ??

    regards

    pradeep

  • 0 in reply to Pradeep Acharya
    TI__Mastermind 20245 points

    Hi,

    Yes in hardware there are two paths for converting from YUV to RGB one through the video port module and other through VIP module. But both are not supported in driver. We dont have dates and plan to support that as of now.

    Regards,

    Hardik Shah