[mythtv-users] PVR-150 no audio

Nick Rout nick at rout.co.nz
Sun Jul 24 17:23:26 EDT 2005


> I have just spent the last several hours looking through Jarod's Guide
> and searching the mailing list archives, but have not found the answer.
> 
> I replaced my pcHDTV-3000 card with a PVR-150 (I don't have any HDTV yet
> anyway) because I wanted hardware decoding. I am using an analog cable
> hooked to the coax input of the card. First I set up the card under
> Windows to make sure it worked, the cable signal was good, etc. It works
> fine under Windows. Video and audio are good.
> 
> Back to Linux, I got the ivtv drivers installed. The modules all load.
> All capture tests I have run produce the same result: there is video,
> but no audio. Other audio apps work fine so I believe my sound card and
> ALSA drivers are configured and loaded correctly. 
> 
> The capture tests I have run include cat /dev/video0 to a file, then
> reading that file with mplayer; running mplayer directly
> off /dev/video0, and mythfrontend. All the same: video is good, no
> audio. Mythfrontend in Watch Live TV mode will change channels, but
> ptune-ui.pl will not (it SAYS the channel was changed but the running
> mplayer is not affected). Running "aplay /dev/dsp" while any video is
> playing also produces no sound.
> 
> The only thing I found that remotely covers this (not saying there isn't
> anything else, just that if there is, I haven't been able to find it) is
> a line from the troubleshooting section of the MythTV install doc, a
> link to stuff specific to the PVR-250/350, which I am assuming would be
> similar to the 150 because they are all MPEG2 encoder cards. It says
> that no audio can be caused by loading the wrong msp3400 module.
> However, I am as certain as I can be that I am loading the correct
> module. I have installed ivtv-0.3.7a, but I briefly tried one of the
> 0.3.6 versions with the same results. If I look under /lib/module/`uname
> -r` , the ivtv directory is the only one that contains an msp3400.ko
> file. 

1. stop hijacking threads

2. ivtvctl below shows you are set to the tuner audio, I'm assuming you
want the line in. set it to line in. (This assumes you have a cable box
which is connected to s-video or composite in.)

> 
> # modinfo msp3400
> filename:       /lib/modules/2.6.10-1.770_FC3/ivtv/msp3400.ko
> parm:           probe:List of adapter,address pairs to scan additionally
> parm:           probe_range:List of adapter,start-addr,end-addr triples
> to scan additionally
> parm:           ignore:List of adapter,address pairs not to scan
> parm:           ignore_range:List of adapter,start-addr,end-addr triples
> not to scan
> parm:           force:List of adapter,address pairs to boldly assume to
> be present
> description:    device driver for msp34xx TV sound processor
> author:         Gerd Knorr
> license:        GPL
> vermagic:       2.6.10-1.770_FC3 686 REGPARM 4KSTACKS gcc-3.4
> depends:        i2c-core
> srcversion:     8CA10DEA2DD743C63D22AEC
> 
> I do note, however, that the troubleshooting chapter says that I should
> see a line that says "parm: standard int", and as you can see, there is
> no such line. All I did to build the driver was "make; make install". Is
> there some parameter I need to tweak to make this build correctly? Have
> I done something else obviously wrong?
> 
> Thanks for any help,
> --Greg
> 
> # ivtvctl -a
> ioctl IVTV_IOC_G_CODEC ok
> Codec parameters
> aspect      : 2
> audio       : 0x00e9
> bframes     : 3
> bitrate_mode: 0
> bitrate     : 4500000
> bitrate_peak: 6000000
> dnr_mode    : 0
> dnr_spatial : 0
> dnr_temporal: 8
> dnr_type    : 0
> framerate   : 0
> framespergop: 0
> gop_closure : 1
> pulldown    : 0
> stream_type : 0
> ioctl VIDIOC_G_FMT ok
>         Type   : Video Capture
>         Width  : 480
>         Height : 480
> ioctl VIDIOC_QUERYCAP ok
>         Driver name   : ivtv
>         Card type     : WinTV PVR 150
>         Bus info      : 0
>         Driver version: 775
>         Capabilities  : 0x01030011
> ioctl: VIDIOC_ENUMINPUT
>         Input   : 0
>         Name    : S-Video 0
>         Type    : 0x00000002
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
>         Status  : 0
> 
>         Input   : 1
>         Name    : S-Video 1
>         Type    : 0x00000002
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
>         Status  : 0
> 
>         Input   : 2
>         Name    : Composite 0
>         Type    : 0x00000002
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
>         Status  : 0
> 
>         Input   : 3
> 
>         Name    : Composite 1
>         Type    : 0x00000002
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
>         Status  : 0
> 
>         Input   : 4
>         Name    : Composite 2
>         Type    : 0x00000002
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
>         Status  : 0
> 
>         Input   : 5
>         Name    : Composite 3
>         Type    : 0x00000002
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
>         Status  : 0
> 
>         Input   : 6
>         Name    : Tuner 0
>         Type    : 0x00000001
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x0000000000003000 ( NTSC )
>         Status  : 0
> 
>         Input   : 7
>         Name    : Tuner 1
>         Type    : 0x00000001
>         Audioset: 0x00000003
>         Tuner   : 0x00000000
>         Standard: 0x0000000000003000 ( NTSC )
>         Status  : 0
> ioctl VIDIOC_G_INPUT ok
> Video input = 6
> ioctl: VIDIOC_ENUMOUTPUT
> ioctl VIDIOC_G_OUTPUT failed: Invalid argument
> ioctl: VIDIOC_ENUMAUDIO
>         Input   : 0
>         Name    : Tuner Audio In
> 
>         Input   : 1
>         Name    : Audio Line 1
> 
>         Input   : 2
>         Name    : Audio Line 2
> 
>         Input   : 3
>         Name    : Audio Line 3
> 
>         Input   : 4
>         Name    : Audio Line 4
> ioctl VIDIOC_G_AUDIO ok
> Audio input = 0: Tuner Audio In
> ioctl VIDIOC_G_FREQUENCY ok
> Frequency = 3668
> ioctl: VIDIOC_ENUMSTD
>         index       : 0
>         ID          : 0x0000000000003000
>         Name        : NTSC
>         Frame period: 1001/30000
>         Frame lines : 525
> 
>         index       : 1
>         ID          : 0x00000000000000FF
>         Name        : PAL
>         Frame period: 1/25
>         Frame lines : 625
> 
>         index       : 2
>         ID          : 0x00000000007F0000
>         Name        : SECAM
>         Frame period: 1/25
>         Frame lines : 625
> ioctl VIDIOC_G_STD ok
> Video standard = 0x00003000
> ioctl: VIDIOC_QUERYCTRL
> Brightness = 127
> Contrast = 63
> Saturation = 63
> Hue = 0
> Volume = 58744
> Mute = 0
> 
> 

-- 
Nick Rout
Barrister & Solicitor
Christchurch
Contact details at http://www.rout.co.nz 
nick at rout.co.nz



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