[mythtv-users] Cropping with PVR-150

[Scott Kidder]

On Wed, Oct 1, 2008 at 11:40 AM, Jim Stichnoth <stichnot at gmail.com> wrote:

> I took a couple of screen shots to show the problem more clearly.  I paused
> the input source (an SD DirecTiVo), then ran either "v4l2-ctl -b cc" or
> "v4l2-ctl -b off" to turn closed captioning on or off, and then captured a
> frame using xine.  If you flip back and forth between the two images, it's
> clear that the first several lines are being cropped and everything shifted
> up when cc is enabled.  It's also interesting that even with the uncropped
> picture, the VBI stuff has apparently already been removed.  If I had to
> guess, I would say that VBI removal is being done twice when cc is on.  (I
> would prefer that VBI were not removed at all, so that MythTV overscan or
> whatever could be applied consistently to all inputs.)
>
> cc on: http://www.flickr.com/photos/37377999@N00/2905480460/sizes/o/
> cc off: http://www.flickr.com/photos/37377999@N00/2905480878/sizes/o/
>
>
I have an identical problem with recordings made on my PVR-150 through the
composite inputs.  Mine matches the 'CC On' image.  I'd basically given up
on this problem until I saw your message!  For what it's worth, here's the
IVTV output for my PVR-150 card:

[root at mythtv root]# /usr/local/bin/v4l2-ctl --log-status
--device=/dev/video_pvr150

Status Log:

   ivtv0: =================  START STATUS CARD #0  =================
   ivtv0: Version: 1.3.0 Card: Hauppauge WinTV PVR-150
   tveeprom 1-0050: Hauppauge model 26552, rev F0A3, serial# 10381107
   tveeprom 1-0050: tuner model is TCL MFNM05-4 (idx 103, type 43)
   tveeprom 1-0050: TV standards NTSC(M) (eeprom 0x08)
   tveeprom 1-0050: audio processor is CX25843 (idx 37)
   tveeprom 1-0050: decoder processor is CX25843 (idx 30)
   tveeprom 1-0050: has radio, has no IR receiver, has no IR transmitter
   cx25840 1-0044: Video signal:              present
   cx25840 1-0044: Detected format:           NTSC-M
   cx25840 1-0044: Specified standard:        NTSC-M
   cx25840 1-0044: Specified video input:     Composite 3
   cx25840 1-0044: Specified audioclock freq: 48000 Hz
   cx25840 1-0044: Detected audio mode:       forced mode
   cx25840 1-0044: Detected audio standard:   no detected audio standard
   cx25840 1-0044: Audio muted:               no
   cx25840 1-0044: Audio microcontroller:     stopped
   cx25840 1-0044: Configured audio standard: automatic detection
   cx25840 1-0044: Configured audio system:   BTSC
   cx25840 1-0044: Specified audio input:     External
   cx25840 1-0044: Preferred audio mode:      stereo
   tda9887 1-0043: Data bytes: b=0x14 c=0x30 e=0x44
   tuner 1-0061: Tuner mode:      analog TV
   tuner 1-0061: Frequency:       55.25 MHz
   tuner 1-0061: Standard:        0x0000b000
   wm8775 1-001b: Input: 2
   ivtv0: Video Input:  Composite 1
   ivtv0: Audio Input:  Line In 1
   ivtv0: Tuner:  TV
   ivtv0: Stream: MPEG-2 Program Stream
   ivtv0: VBI Format: Private packet, IVTV format
   ivtv0: Video:  720x480, 30 fps
   ivtv0: Video:  MPEG-2, 4x3, Variable Bitrate, 4500000, Peak 6000000
   ivtv0: Video:  GOP Size 15, 2 B-Frames, GOP Closure
   ivtv0: Audio:  48 kHz, Layer II, 384 kbps, Stereo, No Emphasis, No CRC
   ivtv0: Spatial Filter:  Manual, Luma 1D Horizontal, Chroma 1D Horizontal, 0
   ivtv0: Temporal Filter: Manual, 8
   ivtv0: Median Filter:   Off, Luma [0, 255], Chroma [0, 255]
   ivtv0: Status flags:    0x00200000
   ivtv0: Stream encoder MPG: status 0x0118, 3% of 4096 KiB (128 buffers) in use
   ivtv0: Stream encoder YUV: status 0x0000, 0% of 2048 KiB (64 buffers) in use
   ivtv0: Stream encoder VBI: status 0x0038, 6% of 1040 KiB (61 buffers) in use
   ivtv0: Stream encoder PCM: status 0x0000, 0% of 324 KiB (72 buffers) in use
   ivtv0: Read MPG/VBI: 12103616/59444 bytes
   ivtv0: ==================  END STATUS CARD #0  ==================
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