El Miércoles, 14 de Febrero de 2007, Simon Baxter escribió:
In order to get the correct info from a v4l2-ctl --all: Format: Type : VBI Capture Sampling Rate : 27000000 Hz Offset : 248 samples (9.18519e-06 secs after leading edge) Samples per Line: 1440 Sample Format : GREY Start 1st Field : 6 Count 1st Field : 18 Start 2nd Field : 318 Count 2nd Field : 18 Video input : 0 (Tuner 1) Audio input : 0 (Tuner 1) Frequency: 1440000 (90.000000 MHz) Video standard = 0x000000ff PAL-B/B1/G/H/I/D/D1/K Tuner: Capabilities : @@ -881,12 +881,19 @@ bool cPvrDevice::Tune(int freq) { struct v4l2_frequency vf;
int freqaux = freq; memset(&vf, 0, sizeof(vf)); vf.tuner = 0;
vf.type = V4L2_TUNER_ANALOG_TV;
if (freq < 88000000)I think this don't work. I use freq >180000 because 180000 is the
max
range for FM. You can also use:
if (radio_fd >= 0) radio else tv
Jose Alberto
I've found some weird stuff. When vf.tuner is set to V4L2_TUNER_RADIO the freq seems to be a factor smaller. In experimenting, I find if I set the channels between 88000000 & 108000000 (for 88-108Mhz - looks like this is set as Hz ???) monitoring what's been set on the PVR-150 with 'v4l2-ctl --all', I see these values set the correct freq and I get a 50% or better signal strength. What's more, the 'v4l2-ctl --all' matches what's set with a 'ivtv-radio -f90.0'.
Problem is, no audio is output!! It looks like the v4l2 tuner is set to radio, the tuner is set to 90.9Mhz, but it's trying to play the stream from /dev/video0 rather than /dev/video24. Does this make sense??
radio: /dev/video24->raw audio /dev/video0->compressed mp2 audio
Turns out it is working perfectly - but I wasn't able to confirm this remotely. When I got home and 'attached' my vdr-xine client, the radio started coming though!
Thanks Jose....