On Thu, 2009-09-03 at 12:14 +0100, Simon Farnsworth wrote: > Hello, > > I'm trying to make a Hauppauge HVR1600 (using the cx18 driver) work well > with Xine; Hans de Goede has sorted out the video side of the card for > me, and I now need to get the audio side cleared up. > > I'm used to cards like the Hauppauge HVR1110, which exports an ALSA > interface for audio capture; the HVR1600 doesn't do this. Instead, it > exports a "video" device, /dev/video24 that appears to have some > variation on PCM audio on it instead of video. Yes, it's PCM straight from the capture unit in the CX23418. > How should I handle this in Xine's input_v4l.c? Should the driver be > changed to use ALSA? It would be nice to have. Your the first person to really need it. The end result can be ported to ivtv too. > If not, how do I detect this case, and how should I > configure the PCM audio device? It can be configured with the V4L2 control ioctl()s. It should the be a case of making select() and read() calls. > If the driver needs modifying, I can do this, but I'll need an > explanation of how to do so without breaking things for other people - > I've not done much with ALSA drivers or with V4L2 drivers. The skeleton of cx18-alsa support is almost done, but the heavy lifting is not. http://linuxtv.org/hg/~awalls/mc-lab I'll push any uncommitted changes I have lying around to that repo tonight. Regards, Andy -- 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
