[mythtv-users] No Audio
Achint Sandhu
sandhu at kilo.dyndns.org
Wed Jul 9 15:38:24 EDT 2003
Hi,
Video works fine in myth. The audio is the issue. Sorry if this was not clear
in my post...
Cheers,
Achint
On July 9, 2003 14:31, Achint Sandhu wrote:
> Hi,
>
> I've just started setting up my MythTV box and have run into a small snag.
>
> I'm using Gentoo linux and have installed the latest cvs version (from
> last night). The box is a Pundit with a P4 2.4ghz processor, 1gig RAM and a
> PVR 250 card.
>
> I managed to get ALSA and the IVTV stuff built without any problems.
>
> After setting the input to the RCA video in jack on the back (using
> test_ioctl -p 5), I tested it as follows. I need to use the RCA jack since
> I will be using Myth with a satalite receiver. For my testing I have a VCR
> plugged into this jack. I don't think, that this should make a difference.
>
> Using cat /dev/video0 > test.mpg works great. The audio is fine....
>
> Using mplayer -vo xv /dev/video0 runs fine too with smooth audio
>
> Armed with this, I proceeded to install Myth thinking that I had
> everything setup correctly. The output from test_ioctl -a is included below
> incase someone is intrested. I did notice that the last setting in the
> output is Mute=1. Even with this capture works fine. I've tried changing
> this with no effect.
>
> I setup the mythbackend with the capture card information. For the video
> device I used /dev/video0, I didn't know what to set the audio capture
> device to, but I've tried /dev/video0 (since the PVR250 is supposed to
> capture the audio as well.), I tried /dev/dsp (I didn't expect this to
> work, but tried it anyway)....
>
> Anyway, watching LiveTV in Myth does not generate any sound. After
> quitting Myth, I can't get sound anymore using mplayer as above.
>
> Is myth doing anything special with the IVTV driver that causes this. I am
> sure that I have the correct msp3400 module being loaded.
>
> Out of idea. Any help would be appreciated. I'm probably missing something
> obvious. Thanks
>
> Cheers,
> Achint
>
>
> test_ioctl -a
> ^^^^^^^^^^
>
>
> ioctl: IVTV_IOC_G_CODEC
> Codec parameters
> aspect : 2
> audio : 0x00e9
> bframes : 3
> bitrate_mode: 0
> bitrate : 8000000
> bitrate_peak: 16000000
> dnr_mode : 0
> dnr_spatial : 0
> dnr_temporal: 0
> dnr_type : 0
> framerate : 0
> framespergop: 15
> gop_closure : 0
> pulldown : 0
> stream_type : 0
> ioctl: VIDIOC_G_FMT
> Type : Video Capture
> Width : 720
> Height : 480
> ioctl: VIDIOC_QUERYCAP
> Driver name : ivtv
> Card type : Vanilla iTVC15 card
> Bus info : 0
> Driver version: 1
> Capabilities : 0x01030001
> ioctl: VIDIOC_ENUMINPUT
> Name : Composite 0
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : Composite 1
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : Composite 2
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : Composite 3
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : Tuner 0
> Type : 0x00000001
> Audioset: 0x00000000
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : Composite 4
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : S-Video 0
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : S-Video 1
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : S-Video 2
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> Name : S-Video 3
> Type : 0x00000002
> Audioset: 0x00000001
> Tuner : 0x00000000
> Standard: 0x 3000 ( NTSC )
> Status : 0
> ioctl: VIDIOC_G_INPUT
> Input = 5
> ioctl: VIDIOC_G_FREQUENCY
> Frequency = 0
> ioctl: VIDIOC_ENUMSTD
> ID : 0x 3000
> Name : NTSC
> Frame period: 1001/30000
> Frame lines : 525
> ID : 0x FF
> Name : PAL
> Frame period: 1/25
> Frame lines : 625
> ID : 0x 7F0000
> Name : SECAM
> Frame period: 1/25
> Frame lines : 625
> ioctl: VIDIOC_G_STD
> Standard = 0x00003000
> ioctl: VIDIOC_QUERYCTRL
> Brightness = 128
> Contrast = 64
> Saturation = 64
> Hue = 0
> Volume = 65535
> Mute = 1
--
"There are 10 types of people in the world. Those that understand
binary and those that don't"
More information about the mythtv-users
mailing list