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dm365: dm368: Resize yuv422(uyvy) to yuv420psemi(nv12)

Mikhail Fandyushin
Prodigy 130 points

Hello,

How to resize yuv422 to yuv420psemi on the fly? I tried it in single shot mode, its works fine. But i need to resize it in chain mode.

By default, capture throw out half frame (bot or top fiield) and resize half frame x2. I want to capture all lines(bot and top) in yuv420psemi and throw this frame to encoder.

Thanks.

  • 0
    TI__Guru 65405 points
    Hi Mikhail,

    Check description of the YC420 field about data format selection in the TMS320DM36x DMSoC Video Processing Back End User's Guide section 6.2.60 Miscellaneous control register at:
    www.ti.com/.../sprufg9c.pdf

    BR
    Tsvetolin Shulev
  • 0 in reply to Cvetolin Shulev-XID
    Prodigy 130 points

    Thank you for answer, Cvetolin Shulev.

    But you wrote about BackEnd interface ~ Display Interface. I think i need to modify capture module (VPFE). Methinks its working like: Capture frame in UYVY chroma, then resize to YUV420PSemi, than encode this frame. When I use resize on the fly (oper_mode=0; hCapture.onTheFly = TRUE;) It throw out half frame and get 720x288(only bot or top field) and resize this part to full resolution (720x576). But I want to capture all frame with bot and top field with interlace effect end put it to encoder or DEI.

    Thanks.