[mythtv] current hd-pvr driver with Centos 5

Ian Forde ian at duckland.org
Sun Apr 12 05:34:02 UTC 2009


On Wed, 2009-04-08 at 19:56 -0700, Ian Forde wrote:
> (now to the dev list...)
> 
> So I went to upgrade my CentOS 5 myth boxes from 5.2 to 5.3. Upgrade
> went successfully. Next step, upgrade my myth trunk installation.  Ah,
> but I have to upgrade my hd-pvr driver. Go to the wiki page... looks
> like the driver is now in v4l-dvb trunk. No problem - download,
> build... bzzt.  Looks like it requires 2.6.20.  Since CentOS uses
> 2.6.18 with a TON of backported fixes, I figured I'd give it a shot,
> since it worked earlier. Remember that "bzzt" earlier?  Yeah - that's
> this error:
> 
> [myhost v4l-dvb]# make
> make -C /usr/local/src/myth/v4l-dvb/v4l
> make[1]: Entering directory `/usr/local/src/myth/v4l-dvb/v4l'
> creating symbolic links...
> Kernel build directory is /lib/modules/2.6.18-128.1.6.el5/build
> make -C /lib/modules/2.6.18-128.1.6.el5/build
> SUBDIRS=/usr/local/src/myth/v4l-dvb/v4l  modules
> make[2]: Entering directory `/usr/src/kernels/2.6.18-128.1.6.el5-x86_64'
>  CC [M]  /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.o
> /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.c: In function
> 'hdpvr_alloc_buffers':
> /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.c:158: warning: passing
> argument 6 of 'usb_fill_bulk_urb' from incompatible pointer type
> /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.c:282:49: error: macro
> "INIT_WORK" requires 3 arguments, but only 2 given
> /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.c: In function
> 'hdpvr_start_streaming':
> /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.c:282: error: 'INIT_WORK'
> undeclared (first use in this function)
> /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.c:282: error: (Each
> undeclared identifier is reported only once
> /usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.c:282: error: for each
> function it appears in.)
> make[3]: *** [/usr/local/src/myth/v4l-dvb/v4l/hdpvr-video.o] Error 1
> make[2]: *** [_module_/usr/local/src/myth/v4l-dvb/v4l] Error 2
> make[2]: Leaving directory `/usr/src/kernels/2.6.18-128.1.6.el5-x86_64'
> make[1]: *** [default] Error 2
> make[1]: Leaving directory `/usr/local/src/myth/v4l-dvb/v4l'
> make: *** [all] Error 2

Okay - looks like I figured a way out of this one.  By changing line 282
of hdpvr-video.c to read:

INIT_WORK(&dev->worker, hdpvr_transmit_buffers, &dev->worker);

I was able to get it to build.  Unfortunately, SPDIF input doesn't seem
to be doing the "right thing".  As I understand it, the driver won't
record unless it sees a signal.  But it *is* able to record, even with
the 'cat /dev/video4 > /tmp/1.mpg' test.  When I do a subsequent 'ffmpeg
-i /tmp/1.mpg', it tells me that regarding audio, it's got AAC audio
rather than AC3 5.1.

Next step: trying 'v4l2-ctl --device=/dev/video4 -l' to see if I missed
anything.  I tried 'v4l2-ctl --device=/dev/video4
--set-ctrl=audio_encoding=4' and retried a capture.  That yields a file
with AC3 but 2-channel audio, and it still won't play on a frontend that
can play AC3 and non-AC3 content without a problem.

I suppose my question is: Is this the correct place to ask questions
regarding the hd-pvr driver itself?

	-I



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