[Zapping-misc] decoding raw ntsc CC with em28xx

[Pádraig B. <Pad...@li...>]

I'm having serious trouble with this.
My tuner/driver on linux only provides raw VBI data.

I've modified contrib/ntsc-cc.c to set:
  strict=0;
  services=VBI_SLICED_CAPTION_525 | VBI_SLICED_VBI_525;
That's the combination I get furthest with.
I can see the raw pattern attached with this command:
  ./zvbi-ntsc-cc --cc -v -r11 -w
However nothing is decoded.

I enabled RAW_DECODER_PATTERN_DUMP in raw_decoder.c,
but just get this for each block of VBI data read:

  services 0x00000060
  job 1: 0x00000060 (Closed Caption 525)
  scan line   6: 01 00 00 00 00 00 00 80
  scan line   7: 01 00 00 00 00 00 00 80
  scan line   8: 01 00 00 00 00 00 00 80
  scan line   9: 01 00 00 00 00 00 00 80
  scan line  10: 01 00 00 00 00 00 00 80
  scan line  11: 01 00 00 00 00 00 00 80
  scan line  12: 01 00 00 00 00 00 00 80
  scan line  13: 01 00 00 00 00 00 00 80
  scan line  14: 01 00 00 00 00 00 00 80
  scan line  15: 01 00 00 00 00 00 00 80
  scan line  16: 01 00 00 00 00 00 00 80
  scan line  17: 01 00 00 00 00 00 00 80
  scan line 317: 01 00 00 00 00 00 00 80
  scan line 318: 01 00 00 00 00 00 00 80
  scan line 319: 01 00 00 00 00 00 00 80
  scan line 320: 01 00 00 00 00 00 00 80
  scan line 321: 01 00 00 00 00 00 00 80
  scan line 322: 01 00 00 00 00 00 00 80
  scan line 323: 01 00 00 00 00 00 00 80
  scan line 324: 01 00 00 00 00 00 00 80
  scan line 325: 01 00 00 00 00 00 00 80
  scan line 326: 01 00 00 00 00 00 00 80
  scan line 327: 01 00 00 00 00 00 00 80
  scan line 328: 01 00 00 00 00 00 00 80


Your confused,
Pádraig.