[mythtv-users] Garbled Closed captions with PVR-350

[Pankaj Chavan]

Hi,

I've been scouring mailing lists and Google on and off
for a while now to resolve this issue.

I haven't been able to get good closed captions with
my PVR-350 card.  Live TV shows garbled captions (half
words, sentence run overs, etc.), and recordings never
have any captions at all (hitting the T button doesn't
show any captions).  I have by now gone through many
revisions of mythtv and ivtv drivers. My current ivtv
version is the in kerhel version that came with
gentoo-sources-2.6.22-gentoo-r8, which is I think
version 1.0.0.  MythTV version is 0.20.2_p14680
(gentoo version numbering).

I've got a WinTV-dbx 401 card on /dev/video0, and it
works very well, captions and all. The video quality
is worse than PVR-350, due to ghosting and show, etc. 
/dev/video1 onwards are PVR-350 devices.

Using,

zvbi-ntsc-cc -c -d /dev/vbi1, I get perfect captions,
so as hinted in some posting, the problem might be
with decoding the captions by mythtv, and not in the
encoding process itself.

I'd really appreciate your help in this matter, as the
lack of usable captions, as the noise in the kitchen
and the kids running around pretty much require
working captions. :)

Here's the dmesg log upon loading the ivtv driver.
ivtv:  ==================== START INIT IVTV
====================
ivtv:  version 1.0.0 (2.6.22-gentoo-r8 SMP preempt
mod_unload K8 ) loading
ivtv0: User specified Hauppauge WinTV PVR-350 card
(detected cx23415 based chip)
ACPI: PCI Interrupt 0000:00:0b.0[A] -> GSI 17 (level,
low) -> IRQ 20
ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836
bytes)
ivtv0: loaded v4l-cx2341x-dec.fw firmware (262144
bytes)
ivtv0: Encoder revision: 0x02060039
ivtv0: Decoder revision: 0x02020023
i2c-adapter i2c-1: Client creation failed at 0x40 (-5)
tuner 1-0043: chip found @ 0x86 (ivtv i2c driver #0)
tda9887 1-0043: tda988[5/6/7] found @ 0x43 (tuner)
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
saa7115 1-0021: saa7115 found (1f7115d0e100000) @ 0x42
(ivtv i2c driver #0)
saa7127 1-0044: saa7129 found @ 0x88 (ivtv i2c driver
#0)
msp3400 1-0040: MSP4448G-A2 found @ 0x80 (ivtv i2c
driver #0)
msp3400 1-0040: MSP4448G-A2 supports radio, mode is
autodetect and autoselect
tveeprom 1-0050: Hauppauge model 48132, rev K268,
serial# 9889073
tveeprom 1-0050: tuner model is LG TAPE H001F MK3 (idx
68, type 47)
tveeprom 1-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 1-0050: audio processor is MSP4448 (idx 27)
tveeprom 1-0050: decoder processor is SAA7115 (idx 19)
tveeprom 1-0050: has radio, has IR receiver, has no IR
transmitter
ivtv0: Autodetected Hauppauge WinTV PVR-350
tuner 1-0061: type set to 47 (LG NTSC (TAPE series))
ivtv0: Registered device video1 for encoder MPEG (4
MB)
ivtv0: Registered device video32 for encoder YUV (2
MB)
ivtv0: Registered device vbi1 for encoder VBI (4 MB)
ivtv0: Registered device video24 for encoder PCM audio
(1 MB)
ivtv0: Registered device radio1 for encoder radio
ivtv0: Registered device video16 for decoder MPEG (1
MB)
ivtv0: Registered device vbi8 for decoder VBI (1 MB)
ivtv0: Registered device vbi16 for decoder VOUT
ivtv0: Registered device video48 for decoder YUV (1
MB)
ivtv0: loaded v4l-cx2341x-init.mpg firmware (155648
bytes)
ivtv0: Initialized Hauppauge WinTV PVR-350, card #0
ivtv:  ====================  END INIT IVTV 
====================


Let me know if I need to provide any more info.

Thanks!

Pankaj

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