[FFmpeg-trac] #1570(avdevice:closed): libv4l2: error dequeuing buf: Resource temporarily unavailable
FFmpeg
trac at avcodec.org
Mon Mar 4 15:51:29 CET 2013
#1570: libv4l2: error dequeuing buf: Resource temporarily unavailable
-------------------------------------+-------------------------------------
Reporter: llarevo | Owner:
Type: defect | Status: closed
Priority: important | Component: avdevice
Version: git-master | Resolution: fixed
Keywords: v4l2 | Blocked By:
regression | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 1 |
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Comment (by holden):
Hello,
for the issue of ffmpeg compiled with --enable-lib4vl2 I will try to look
into that, although I am a bit busy these days so I can only work on it on
weekends :(
For the audio issue, I'm sure it should work, it must be some settings.
Sadly all the transmissions are in dvb-t now here in Italy, so I cannot
test with analog TV.
I'd suggest you to try this: acquire only video with ffmpeg and see if you
can hear something by running in another terminal:
{{{
arecord -D hw:SAA7134 -f cd | aplay
}}}
while you do that, open alsamixer and play around, in particular make sure
you test all the capture inputs (Line 1, Line 2 and Video). If that works,
ffmpeg should work too. Anyway this is probably another issue, so I'd
kindly ask you to please open a new ticket.
ps. I've noticed with my card that if I set capture on Video, and run the
command above, I see in alsamixer that something changes it back to Line
2. Once I switch to Video again I can hear the typical noise of untuned TV
station.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1570#comment:22>
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