[libdv-dev] dv_decode_full_frame

[salsaman <sal...@gm...>]

Hi,
could somebody please explain how dv_decode_full_frame() works ?

I have the following code for example (for PAL), but it is crashing:

    uint8_t fbuffer[144000];

    int frame=1;
    size_t bytes=144000;
    int rowstrides[3];

    if (cdata.palette==YUV420) {
      rowstrides[0]=cdata.width;
      rowstrides[1]=cdata.width>>1;
      rowstrides[2]=cdata.width>>1;
    }
    else {
      rowstrides[0]=cdata.width*6; // YUV411 - 6 bytes per pixel
    }

    lseek(fd,bytes,SEEK_SET);

    if (read (fd, fbuffer, 144000) < 144000) return FALSE;

    dv_parse_header(dv_dec, fbuffer);
    //dv_parse_packs(dv_dec, fbuffer);

    dv_decode_full_frame(dv_dec,fbuffer,e_dv_color_yuv,(uint8_t
**)pixel_data,rowstrides);




Here pixel_data is an array of pointers to the Y,U, and V planes for YUV420.

Also, do I need the dv_parse_header() and/or dv_parse_packs() ?


Regards,
Salsaman.
http://lives.sourceforge.net