On Thu, 8 Jan 2009 03:00:33 +0100 Nicola Soranzo <nsoranzo@xxxxxxxxxx> wrote: > Alle giovedì 08 gennaio 2009, Mauro Carvalho Chehab ha scritto: > > On Wed, 7 Jan 2009 20:31:27 +0100 > > Nicola Soranzo <nsoranzo@xxxxxxxxxx> wrote: > > > Hi everybody, > > > I have a Hauppauge WinTV-HVR-900 (R2) USB stick, model 65018, which has > > > Empiatech Em2880 chip, Xceive XC3028 tuner and Micronas drx397x DVB-T > > > demodulator. > > > On the same laptop I have an Intel High Definition Audio soundcard and a > > > Syntek DC-1125 webcam. > > > ... > > > I can see analog video, but no audio with any program I used (tvtime, > > > xawtv, MythTV). > > > I'm attaching the part of /var/log/messages after the stick attach and > > > the output of the following commands: > > > aplay -l > > > arecord -l > > > cat /proc/asound/cards > > > cat /proc/asound/devices > > > cat /proc/asound/modules > > > cat /proc/asound/pcm > > > > For you to listen on audio, you need to get the audio from the digital > > em28xx input and write it on your sound card output. Unfortunately, most > > programs don't do this. The only one that does is mplayer, if you pass the > > proper parameters for it. Something like (for PAL-M std): > > > > mplayer -tv > > driver=v4l2:device=/dev/video0:norm=PAL-M:chanlist=us-bcast:alsa=1:adevice= > >hw.1:audiorate=48000:forceaudio=1:immediatemode=0:amode=1 tv:// > > > > Assuming that em28xx is detected as hw:1 and your audio as hw:0. You can > > check the wiki for more help about this subject. > > I also have a webcam, so the tv is /dev/video1 and relative audio is hw.2 (see > attachments from my previous email). > Unfortunately I had tried previously with mplayer and using: > > mplayer -tv driver=v4l2:device=/dev/video1:norm=PAL:chanlist=europe-west tv:// > > I can see the video without audio, while with: > > mplayer -tv driver=v4l2:device=/dev/video1:norm=PAL:chanlist=europe- > west:alsa=1:adevice=hw.2:audiorate=48000:forceaudio=1:immediatemode=0:amode=1 > tv:// > > mplayer exits immediately with this error: > > v4l2: current audio mode is : STEREO > v4l2: ioctl set format failed: Invalid argument > v4l2: ioctl set format failed: Invalid argument > v4l2: ioctl set format failed: Invalid argument > ALSA lib pcm_hw.c:1429:(_snd_pcm_hw_open) Invalid value for card > Error opening audio: Permission denied > ALSA lib pcm_hw.c:1429:(_snd_pcm_hw_open) Invalid value for card > Error opening audio: Permission denied > ALSA lib pcm_hw.c:1429:(_snd_pcm_hw_open) Invalid value for card > Error opening audio: Permission denied > v4l2: 0 frames successfully processed, 0 frames dropped. This is a udev issue. udev is creating the audio device without permission for your user to access it. Or you fix udev, or you'll need to run mplayer as a root (sigh!). Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
