Hi,
I just bought a DVB-S card which also has an analog input and is
perfectly recognized as a v4l2 card. It works with xawtv, though with a
slight problem that eventually will be the subject of another post, some
day.
I understand, if I'm not much in error, that lavrec should work with v4l
and v4l2 cards, only with --software-encoding. But I get this message
when I try to do that:
$ lavrec --software-encoding -v2 -g 768x576 -i p -f a a.avi INFO:
[lavrec] Recording parameters:
INFO: [lavrec] Output format: AVI
INFO: [lavrec] Input Source: BT8x8 1st input PAL
INFO: [lavrec] Decimation: 4
INFO: [lavrec] Quality: 50
INFO: [lavrec] Recording time: -1 sec
INFO: [lavrec]
INFO: [lavrec] MJPEG buffer size: 256 KB
INFO: [lavrec] # of MJPEG buffers: 64
INFO: [lavrec] Audio parameters:
INFO: [lavrec] Audio sample size: 16 bit
INFO: [lavrec] Audio sampling rate: 44100 Hz
INFO: [lavrec] Audio is MONO
INFO: [lavrec] Audio input recording level: Use mixer setting
INFO: [lavrec] Level of correction for Audio/Video synchronization:
INFO: [lavrec] Lost frame compensation and frame drop/insert
--DEBUG: [lavrec] Maximum size per file will be 1739 MB
INFO: [lavrec] Using mmap(2) system call for capture
++ WARN: [lavrec] Unable to set negative priority for audio thread.
++ WARN: [lavrec] Pthread Real-time scheduling for audio thread could
not be enabled.
INFO: [lavrec] Auto detecting input and norm ...
INFO: [lavrec] Image size will be 768x576, 2 field(s) per buffer
INFO: [lavrec] Got 8 YUV-buffers of size 228 KB
INFO: [lavrec] Created 64 MJPEG-buffers of size 256 KB
INFO: [lavrec] Getting audio ...
++ WARN: [lavrec] Unable to set negative priority for main thread
++ WARN: [lavrec] Pthread Real-time scheduling for main thread could not
be enabled
--DEBUG: [lavrec] Starting software encoding thread
--DEBUG: [lavrec] Encoding thread: sleeping for new frames (waiting for
frame 0) INFO: [lavrec] Created 1 software JPEG-encoding process(es)
--DEBUG: [lavrec] Queueing frame 0
**ERROR: [lavrec] Error queuing buffers: Invalid argument
Recording time : 0.00.00:00
Lost frames : 000
A/V sync ins/del: 000/000
Audio errors : 000
I also tried different parameters, but nothing changes.
Any hint would be appreciated.
Best regards.
--
Andrea
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