On Sat, 4 Aug 2007, Hans Verkuil wrote:
> On Saturday 04 August 2007 11:44:03 Herbert Meier wrote: > > I am using > > > > ivtvctl version 0.10.5 (tagged release) > > debian etch, kernel 2.6.18-4-686. > > > > In my setup there is a PVR150 and a PVR350. > > > > When recording from PVR350's tuner, audio is > > corrupted. > > > > In the recorded MPEG file, about every 0.5 seconds > > there is a switch between mono and stereo sound. > > > > In the attached picture you can see the difference > > between left and right channel. At times where only > > mono is provided, the difference signal is zero. There > > also is a time scale below for measuring how long those > > interruptions are. > > > > IMHO there is something wrong with the tuner control > > during recording. > > > > > > Some additional infos on this experiment: > > > > - Recording from SCART or CINCH doesn't produce the above > > described problem. > > > > - I did not try it with PVR150's tuner. > > > > If you have further questions, please contact me. > > > > > > Regards, > > Herbert. > > > Please provide the INIT IVTV messages from the kernel log. ivtv: ==================== START INIT IVTV ==================== ivtv: version 0.10.5 (tagged release) loading ivtv: Linux version: 2.6.18-4-686 SMP mod_unload 686 REGPARM gcc-4.1 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. ivtv0: Autodetected Hauppauge card (cx23415 based) PCI: Enabling device 0000:02:02.0 (0000 -> 0002) ACPI: PCI Interrupt 0000:02:02.0[A] -> GSI 22 (level, low) -> IRQ 201 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 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 @ 0x42 (ivtv i2c driver #0) saa7127 1-0044: saa7129 found @ 0x88 (ivtv i2c driver #0) msp3400 1-0040: MSP4418G-B3 found @ 0x80 (ivtv i2c driver #0) msp3400 1-0040: MSP4418G-B3 supports nicam and radio, mode is autodetect and autoselect tveeprom 1-0050: Hauppauge model 48139, rev K257, serial# 7671778 tveeprom 1-0050: tuner model is Philips FM1216 ME MK3 (idx 57, type 38) tveeprom 1-0050: TV standards PAL(B/G) PAL(I) SECAM(L/L') PAL(D/D1/K) (eeprom 0x74) tveeprom 1-0050: audio processor is MSP4418 (idx 25) tveeprom 1-0050: decoder processor is SAA7115 (idx 19) tveeprom 1-0050: has radio, has IR remote ivtv0: Autodetected Hauppauge WinTV PVR-350 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 1-0061: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3)) ivtv0: Initialized Hauppauge WinTV PVR-350, card #0 ivtv: ====================== NEXT CARD ====================== ivtv1: Autodetected Hauppauge card (cx23416 based) PCI: Enabling device 0000:02:04.0 (0000 -> 0002) ACPI: PCI Interrupt 0000:02:04.0[A] -> GSI 18 (level, low) -> IRQ 209 ivtv1: loaded v4l-cx2341x-enc.fw firmware (376836 bytes) ivtv1: Encoder revision: 0x02060039 tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #1) cx25840 2-0044: cx25842-23 found @ 0x88 (ivtv i2c driver #1) cx25840 2-0044: loaded v4l-cx25840.fw firmware (16382 bytes) wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #1) tveeprom 2-0050: Hauppauge model 26134, rev F0B3, serial# 9474246 tveeprom 2-0050: tuner model is TCL M2523_3DB_E (idx 113, type 55) tveeprom 2-0050: TV standards PAL(B/G) PAL(D/D1/K) (eeprom 0x44) tveeprom 2-0050: audio processor is CX25842 (idx 36) tveeprom 2-0050: decoder processor is CX25842 (idx 29) tveeprom 2-0050: has no radio, has IR remote ivtv1: Autodetected Hauppauge WinTV PVR-150 ivtv1: reopen i2c bus for IR-blaster support tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #1) cx25840 2-0044: cx25842-23 found @ 0x88 (ivtv i2c driver #1) cx25840 2-0044: loaded v4l-cx25840.fw firmware (16382 bytes) wm8775 2-001b: 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) tuner 2-0061: type set to 55 (TCL 2002MB) ivtv1: Initialized Hauppauge WinTV PVR-150, card #1 ivtv: ==================== END INIT IVTV ==================== > Also do you see any other messages when recording? No. > Is this with all stereo channels or only a few? All tested stereo channels produce that problem. > Please also test with the PVR150. I will do my best. Any ideas so far? Regards, H. _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
