On Mon, 10 Mar 2003, Erland Lewin wrote: > Wan Tat Chee wrote: > > > > >Hmm, most v4l capable installs should also have v4lctl. Wouldn't it be > >easier to use v4lctl to set frequencies, mute/unmute, etc.? You'll have > >automatic support for available frequency tables without having to worry > >about compatibility and maintenance. > > > Well, I thought it was cool to have the thing in 100% Python, and not > rely on other programs (I started writing a Python module in C, but then > figured out it was possible in Python using the struct.pack functions). > Also, I don't know if it's possible to do things like setting the > overlay window from v4lctl.
v4lctl is more of a helper program to setup the TV card before doing stuff like recording etc. using another program. So no, I don't think it does overlays. However, I hope using a python module with your own ioctl defines won't cause version mismatches in future. > > >e.g., v4lctl volume mute on|off > > > Actually, regarding sound, my problem is with the soundcard mixer. I use > Alsa version 0.9, and the mixer.py stuff just doesn't work at all for > me. The G400-TV tv audio is connected through an external cable to the > soundcard, so what you have to do is to enable playback of what's coming > in on the line in, in my case. Even better would be to record what's > coming in on line in, and play it back somewhere else, so that it can be > played back on another sound card. > The mixer stuff is going to be tricky to do well - it depends on the > audio drivers (OSS or ALSA), the sound card and its mixer controls, on > how the user has set up the audio path etc, etc. We'll need lots of > configuration options. I wonder if we can do this through pygame? > It gets hairier :) There's TV cards that support audio extraction via the PCI bus (and not through the soundcard) (using btaudio), etc. But I thought that once the connections and mixer were setup properly (wrt. xawtv or mplayer), it's just a matter of muting and unmuting if you're only interested in viewing TV. Or am I missing something? > You're welcome to use and modify my source to add v4l2 support. I don't > think there are v4l2 drivers for the G400-TV, so I don't even have any > hardware to test with. Ok. Well, I'm not sure when I'll have time to get around to learning python AND the v4l2 API, but I'll keep that in mind. T.C. ---- Wan Tat Chee (Lecturer) School of Computer Science, Univ. Science Malaysia, 11800 Minden, Penang, Malaysia. Ofc Ph: +604 653-3888 x 3617 Internet: [EMAIL PROTECTED] Web: http://nrg.cs.usm.my/~tcwan GPG Key : http://nrg.cs.usm.my/~tcwan/tcw_gpg.asc F'print : FB0F CED7 85A5 ECF9 DEF0 50E8 A550 A0D2 8638 B1EB ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Freevo-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/freevo-devel
