[mythtv-users] Ivtv recorded MPEG-2 Quality

Wed Sep 10 11:27:16 UTC 2008

Hi,

I recently got a Buffalo Linktheater to replace my bulky frontend. When
I first connected it, it could not play any of my recordings. I've had
to transcode all of them using the lossless MPEG-2 transcode first,
before I could play them. It also helps if I simply copy them using
mencoder (mencode recording.mpg -oac copy -ovc copy -of mpeg -o
recording2.mpg). Both methods fix the mpeg and will allow the
Linktheater to play the recording. I've been having the exact same
problems when trying to play recordings in Windows Media Player, but had
always attributed that to MS :)

Now, my recordings are working, as I've setup the automatic transcode.
However, this is far from ideal. I have to wait until the recording is
finished, commercials are flagged and the transcode has taken place
beforeI can watch the recording.

The problem occurs on both my Hauppauge PVR-150 and PVR-250. I'm running
CentOS 5 with the ATrpms MythTV rpms (currently @ 0.21-fixes svn17961).
I'm also using ATrpms' latest ivtv module (ivtv-kmdl 0.10.6-132 on
kernel 2.6.18-92.1.10.el5).

My last ivtv initialization log:
Aug 12 09:12:30 wodan kernel: ivtv: no version for "struct_module" found: kernel tainted.
Aug 12 09:12:30 wodan kernel: ivtv:  ==================== START INIT IVTV ====================
Aug 12 09:12:30 wodan kernel: ivtv:  version 0.10.6 (tagged release) loading
Aug 12 09:12:30 wodan kernel: ivtv:  Linux version: 2.6.18-92.1.10.el5xen SMP mod_unload gcc-4.1
Aug 12 09:12:30 wodan kernel: ivtv:  In case of problems please include the debug info between
Aug 12 09:12:30 wodan kernel: ivtv:  the START INIT IVTV and END INIT IVTV lines, along with
Aug 12 09:12:30 wodan kernel: ivtv:  any module options, when mailing the ivtv-users mailinglist.
Aug 12 09:12:30 wodan kernel: ivtv0: Autodetected Hauppauge card (cx23416 based)
Aug 12 09:12:30 wodan kernel: ACPI: PCI Interrupt 0000:04:01.0[A] -> GSI 19 (level, low) -> IRQ 17
Aug 12 09:12:30 wodan kernel: ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
Aug 12 09:12:30 wodan kernel: sd 0:0:0:0: Attached scsi generic sg0 type 0
Aug 12 09:12:30 wodan kernel: sd 1:0:0:0: Attached scsi generic sg1 type 0
Aug 12 09:12:30 wodan kernel: GSI 21 sharing vector 0xC8 and IRQ 21
Aug 12 09:12:30 wodan kernel: ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 22 (level, low) -> IRQ 21
Aug 12 09:12:30 wodan kernel: hda_codec: Unknown model for ALC882, trying auto-probe from BIOS...
Aug 12 09:12:30 wodan kernel: ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
Aug 12 09:12:30 wodan kernel: ivtv0: Encoder revision: 0x02060039
Aug 12 09:12:30 wodan kernel: tveeprom 1-0050: Hauppauge model 26559, rev B260, serial# 7680474
Aug 12 09:12:30 wodan kernel: tveeprom 1-0050: tuner model is LG S001D MK3 (idx 60, type 38)
Aug 12 09:12:30 wodan kernel: tveeprom 1-0050: TV standards PAL(B/G) PAL(I) SECAM(L/L') PAL(D/D1/K) (eeprom 0x74)
Aug 12 09:12:30 wodan kernel: tveeprom 1-0050: audio processor is CX25843 (idx 37)
Aug 12 09:12:30 wodan kernel: tveeprom 1-0050: decoder processor is CX25843 (idx 30)
Aug 12 09:12:30 wodan kernel: tveeprom 1-0050: has radio, has no IR remote
Aug 12 09:12:30 wodan kernel: ivtv0: Autodetected Hauppauge WinTV PVR-150
Aug 12 09:12:30 wodan kernel: tuner 1-0043: chip found @ 0x86 (ivtv i2c driver #0)
Aug 12 09:12:30 wodan kernel: tda9887 1-0043: tda988[5/6/7] found @ 0x43 (tuner)
Aug 12 09:12:30 wodan kernel: tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
Aug 12 09:12:30 wodan kernel: cx25840 1-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
Aug 12 09:12:30 wodan kernel: cx25840 1-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
Aug 12 09:12:30 wodan kernel: wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)
Aug 12 09:12:30 wodan kernel: ivtv0: Registered device video0 for encoder MPEG (4 MB)
Aug 12 09:12:30 wodan kernel: ivtv0: Registered device video32 for encoder YUV (2 MB)
Aug 12 09:12:30 wodan kernel: ivtv0: Registered device vbi0 for encoder VBI (1 MB)
Aug 12 09:12:30 wodan kernel: ivtv0: Registered device video24 for encoder PCM audio (1 MB)
Aug 12 09:12:30 wodan kernel: ivtv0: Registered device radio0 for encoder radio
Aug 12 09:12:30 wodan kernel: tuner 1-0061: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3))
Aug 12 09:12:30 wodan kernel: ivtv0: Initialized Hauppauge WinTV PVR-150, card #0
Aug 12 09:12:30 wodan kernel: ivtv:  ======================  NEXT CARD  ======================
Aug 12 09:12:30 wodan kernel: ivtv1: Autodetected Hauppauge card (cx23416 based)
Aug 12 09:12:30 wodan kernel: ACPI: PCI Interrupt 0000:04:02.0[A] -> GSI 18 (level, low) -> IRQ 18
Aug 12 09:12:30 wodan kernel: ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
Aug 12 09:12:30 wodan kernel: ivtv1: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
Aug 12 09:12:30 wodan kernel: ivtv1: Encoder revision: 0x02060039
Aug 12 09:12:30 wodan kernel: tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #1)
Aug 12 09:12:30 wodan kernel: tveeprom 2-0050: Hauppauge model 32054, rev B148, serial# 2766956
Aug 12 09:12:30 wodan kernel: tveeprom 2-0050: tuner model is LG TP18PSB11D (idx 48, type 29)
Aug 12 09:12:30 wodan kernel: tveeprom 2-0050: TV standards PAL(B/G) (eeprom 0x04)
Aug 12 09:12:30 wodan kernel: tveeprom 2-0050: audio processor is MSP4418 (idx 25)
Aug 12 09:12:30 wodan kernel: tveeprom 2-0050: decoder processor is SAA7115 (idx 19)
Aug 12 09:12:30 wodan kernel: tveeprom 2-0050: has no radio, has IR remote
Aug 12 09:12:30 wodan kernel: ivtv1: Autodetected Hauppauge WinTV PVR-250
Aug 12 09:12:30 wodan kernel: saa7115 2-0021: saa7115 found @ 0x42 (ivtv i2c driver #1)
Aug 12 09:12:30 wodan kernel: msp3400 2-0040: MSP4418G-A2 found @ 0x80 (ivtv i2c driver #1)
Aug 12 09:12:30 wodan kernel: msp3400 2-0040: MSP4418G-A2 supports nicam and radio, mode is autodetect and autoselect
Aug 12 09:12:30 wodan kernel: ivtv1: Registered device video1 for encoder MPEG (4 MB)
Aug 12 09:12:30 wodan kernel: ivtv1: Registered device video33 for encoder YUV (2 MB)
Aug 12 09:12:30 wodan kernel: ivtv1: Registered device vbi1 for encoder VBI (1 MB)
Aug 12 09:12:30 wodan kernel: ivtv1: Registered device video25 for encoder PCM audio (1 MB)
Aug 12 09:12:30 wodan kernel: tuner 2-0061: type set to 29 (LG PAL_BG (TPI8PSB11D))
Aug 12 09:12:30 wodan kernel: ivtv1: Initialized Hauppauge WinTV PVR-250, card #1
Aug 12 09:12:30 wodan kernel: ivtv:  ====================  END INIT IVTV  ====================

Does anyone have a clue what's causing this?

Thanks,

Mark Wormgoor