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Doubts in face detection demo code??

Amlan Senapati
Intellectual 400 points
Other Parts Discussed in Thread: TMS320C6748

Dear Sir,

VPIFCaptureFBConfig(SOC_VPIF_0_REGS, VPIF_CHANNEL_0, VPIF_TOP_FIELD,VPIF_LUMA, (unsigned int) buff_luma[0], CAPTURE_IMAGE_WIDTH*2);

In YCbCr there is one luma and 2 chroma (red and blue). Why in the face detection demo code only one chroma buffer is used ??

Why offset is CAPTURE_IMAGE_WIDTH*2?

 

With regards,

AS

  • 0
    TI__Mastermind 35645 points
    Hi,

    We are working on this and will let you know the update shortly.

    Thanks & regards,
    Sivaraj K
  • 0 in reply to Sivaraj Kuppuraj
    TI__Mastermind 35645 points

    Hi,

    Kindly note that when capturing 10-bit or 12-bit video in the raw capture mode, the offset per line of data is doubled because of bit padding.

    The CAPMODE bit of the C0CTRL and C1CTRL control registers determines what data format will be captured by VPIF.

    For more details, kindly look for raw data capture in the TMS320C6748 TRM (spruh79a) and look for sections below:

    34.2.7 Raw Data Capture

    34.2.15.4 Raw Capture Mode

    http://www.ti.com/lit/ug/spruh79a/spruh79a.pdf

    Thanks & regards,

    Sivaraj K

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