Does not capture from PVR-150

[mungewell]

Does not work with a Haupage PVR-150, gives error when allocating buffers.
--
simon@myth:~/python-v4l2-capture$ ./list_devices.py
/dev/video0
    driver: ivtv
    card: Hauppauge WinTV PVR-150
    bus info: 0000:02:0a.0
/dev/video24
    driver: ivtv
    card: Hauppauge WinTV PVR-150
    bus info: 0000:02:0a.0
/dev/video32
    driver: ivtv
    card: Hauppauge WinTV PVR-150
    bus info: 0000:02:0a.0
simon@myth:~/python-v4l2-capture$ ./capture_picture.py
Traceback (most recent call last):
  File "./capture_picture.py", line 28, in <module>
    video.create_buffers(1)
IOError: [Errno 22] Invalid argument
--

This seems to be a similar error as that from 'my' other capture engine, see:
http://code.google.com/p/python-video4linux2/issues/detail?id=16

Listing on inputs/mode attached.

Cheers,
Mungewell.

[Fredrik Portström (portstrom)]

When using libv4l2, create_buffers must be called before start. The old version of capture_picture.py before libv4l2 fails on this. Have you tried with the new version of capture_picture.py?

[mungewell (simon-mungewell)]

In the end I discovered the issue here.

The PVR-150 does not support the streaming interface, you can 'read' data from it though. For frames in HM12 you have to use /dev/video32 as the others (video0 and video24) only appear to support MPEG.

Simon