[mythtv-users] Fwd: Fedora Core 6 New recordings play back too fast

Wed Mar 14 17:15:38 UTC 2007

I have the same problem.  I've got the latest and greatest everything...
even rebuilt the whole darn box to try and fix this.  Was not a problem when
I was on FC6 build 2895, but now that I've got 2911, it's a problem.

It has to be something that Myth is doing with the capture card.  Here's how
I know....

Steps to reproduce:

1. Clean box, built with: Linux 2.6.19-1.2911.6.5.fc6 #1 SMP Sun Mar 4
16:41:13 EST 2007 i686 athlon i386 GNU/Linux
2. Build mythconverg from scratch.  Get mythtvsetup done so you can record
something.
3. Don't set mythbackend to start automatically.
4. reboot the system.
5. Run this test script that I created for this issue (captures 1 minute of
video):

    date
    cat /dev/video > test_capture.mpg &
    sleep 60
    date
    kill -TERM `ps ax |grep /dev/video |grep -v grep | cut -c 1-5`

6. Play the test_capture.mpg file back.  (I used my Windows-based DVD player
software)  You'll notice that the video lasts for approximately 58 seconds.
(generally I've seen a 2 second delay from the time it's supposed to record
to the time it actually does, so I think that 58 seconds is pretty much the
length the video should be.
7. Launch mythbackend, and record something. (I just played Live TV)
8. Stop recording. (Exited Live TV)
9. Run the same script again.  The video will only last 53 seconds. (argh)

I believe this must be a bug that was introduced into MythTV recently,
because it was working for me just a little while again.  I wanted to ensure
my Myth box was latest and greatest for the blasted DST changes. (don't get
me started on my thoughts there.)

Does *anybody* have an answer to this? I think I'm going to go nuts if I
have to put up with chipmunk voices much longer. :-(

-Carl

For anyone interested:

ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.10.1 (tagged release) loading
ivtv:  Linux version: 2.6.19-1.2911.6.5.fc6 SMP mod_unload 686 REGPARM
4KSTACKS
ivtv:  In case of problems please include the debug info between
ivtv:  the START INIT IVTV and END INIT IVTV lines, along with
ivtv:  any module options, when mailing the ivtv-users mailinglist.
Floppy drive(s): fd0 is 1.44M
eth1: forcedeth.c: subsystem: 01043:80a7 bound to 0000:00:04.0
i2c_adapter i2c-0: nForce2 SMBus adapter at 0x4300
i2c_adapter i2c-1: nForce2 SMBus adapter at 0x4340
ivtv0: Autodetected Hauppauge card (cx23415 based)
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 16
ACPI: PCI Interrupt 0000:01:06.0[A] -> Link [LNKA] -> GSI 16 (level,
high) -> IRQ 20
FDC 0 is a post-1991 82077
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
tveeprom 2-0050: Hauppauge model 48132, rev K268, serial# 2927130
tveeprom 2-0050: tuner model is LG TAPE H001F MK3 (idx 68, type 47)
tveeprom 2-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 2-0050: audio processor is MSP4448 (idx 27)
tveeprom 2-0050: decoder processor is SAA7115 (idx 19)
tveeprom 2-0050: has radio, has IR receiver, has no IR transmitter
ivtv0: Autodetected Hauppauge WinTV PVR-350
tuner 2-0043: chip found @ 0x86 (ivtv i2c driver #0)
tda9887 2-0043: tda988[5/6/7] found @ 0x43 (tuner)
tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #0)
saa7115 2-0021: saa7115 found (1f7115d0e100000) @ 0x42 (ivtv i2c driver #0)
saa7127 2-0044: saa7129 found @ 0x88 (ivtv i2c driver #0)
msp3400 2-0040: MSP4448G-A2 found @ 0x80 (ivtv i2c driver #0)
msp3400 2-0040: MSP4448G-A2 supports radio, mode is autodetect and
autoselect
ivtv0: Registered device video0 for encoder MPEG (4 MB)
ivtv0: Registered device video32 for encoder YUV (2 MB)
ivtv0: Registered device vbi0 for encoder VBI (1 MB)
ivtv0: Registered device video24 for encoder PCM audio (1 MB)
ivtv0: Registered device radio0 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)
tuner 2-0061: type set to 47 (LG NTSC (TAPE series))
ivtv0: Initialized Hauppauge WinTV PVR-350, card #0
ivtv:  ======================  NEXT CARD  ======================
ivtv1: Autodetected Hauppauge card (cx23416 based)
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 19
ACPI: PCI Interrupt 0000:02:08.0[A] -> Link [LNKD] -> GSI 19 (level,
high) -> IRQ 21
ACPI: PCI Interrupt Link [LAUI] enabled at IRQ 21
ACPI: PCI Interrupt 0000:00:06.0[A] -> Link [LAUI] -> GSI 21 (level,
high) -> IRQ 17
PCI: Setting latency timer of device 0000:00:06.0 to 64
intel8x0_measure_ac97_clock: measured 51742 usecs
intel8x0: clocking to 47458
ivtv1: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv1: Encoder revision: 0x02060039
tuner 3-0043: chip found @ 0x86 (ivtv i2c driver #1)
tda9887 3-0043: tda988[5/6/7] found @ 0x43 (tuner)
tuner 3-0060: TEA5767 detected.
tuner 3-0060: chip found @ 0xc0 (ivtv i2c driver #1)
tuner 3-0060: type set to 62 (Philips TEA5767HN FM Radio)
tuner 3-0061: chip found @ 0xc2 (ivtv i2c driver #1)
i2c_adapter i2c-3: Client creation failed at 0x44 (-1)
tveeprom 3-0050: Hauppauge model 23552, rev D492, serial# 8142899
tveeprom 3-0050: tuner model is Philips FQ1236A MK4 (idx 92, type 57)
tveeprom 3-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 3-0050: second tuner model is Philips TEA5768HL FM Radio (idx 101,
type 62)
tveeprom 3-0050: audio processor is CX25843 (idx 37)
tveeprom 3-0050: decoder processor is CX25843 (idx 30)
tveeprom 3-0050: has radio, has no IR receiver, has no IR transmitter
ivtv1: Autodetected WinTV PVR 500 (unit #1)
cx25840 3-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #1)
cx25840 3-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
wm8775 3-001b: chip found @ 0x36 (ivtv i2c driver #1)
ivtv1: Registered device video1 for encoder MPEG (4 MB)
ivtv1: Registered device video33 for encoder YUV (2 MB)
ivtv1: Registered device vbi1 for encoder VBI (1 MB)
ivtv1: Registered device video25 for encoder PCM audio (1 MB)
ivtv1: Registered device radio1 for encoder radio
tuner 3-0061: type set to 57 (Philips FQ1236A MK4)
ivtv1: Initialized WinTV PVR 500 (unit #1), card #1
ivtv:  ======================  NEXT CARD  ======================
ivtv2: Autodetected Hauppauge card (cx23416 based)
ACPI: PCI Interrupt 0000:02:09.0[A] -> Link [LNKA] -> GSI 16 (level,
high) -> IRQ 20
ivtv2: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv2: Encoder revision: 0x02060039
tuner 4-0043: chip found @ 0x86 (ivtv i2c driver #2)
tda9887 4-0043: tda988[5/6/7] found @ 0x43 (tuner)
tuner 4-0061: chip found @ 0xc2 (ivtv i2c driver #2)
i2c_adapter i2c-4: Client creation failed at 0x44 (-1)
cx25840 4-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #2)
cx25840 4-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
wm8775 4-001b: chip found @ 0x36 (ivtv i2c driver #2)
tveeprom 4-0050: Hauppauge model 23552, rev D492, serial# 8142899
tveeprom 4-0050: tuner model is Philips FQ1236A MK4 (idx 92, type 57)
tveeprom 4-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 4-0050: second tuner model is Philips TEA5768HL FM Radio (idx 101,
type 62)
tveeprom 4-0050: audio processor is CX25843 (idx 37)
tveeprom 4-0050: decoder processor is CX25843 (idx 30)
tveeprom 4-0050: has radio, has no IR receiver, has no IR transmitter
ivtv2: Correcting tveeprom data: no radio present on second unit
ivtv2: Autodetected WinTV PVR 500 (unit #2)
ivtv2: Registered device video2 for encoder MPEG (4 MB)
ivtv2: Registered device video34 for encoder YUV (2 MB)
ivtv2: Registered device vbi2 for encoder VBI (1 MB)
ivtv2: Registered device video26 for encoder PCM audio (1 MB)
tuner 4-0061: type set to 57 (Philips FQ1236A MK4)
ivtv2: Initialized WinTV PVR 500 (unit #2), card #2
ivtv:  ====================  END INIT IVTV  ====================