Bug#718805: /usr/bin/avconv: avconv cannot grab video4linux2 device

[Reinhard Tartler]

severity 718805 minor
tag 718805 moreinfo
stop

Sorry for taking so long to get back to this bug.
On Mon, Aug 5, 2013 at 12:48 PM, rpnpif <rpnpif at free.fr> wrote:
> Package: libav-tools
> Version: 6:0.8.6-1~bpo60+1
> Severity: important
> File: /usr/bin/avconv
>
> avconv -f video4linux2 -i /dev/video1
> get this error :
> avconv version 0.8.6-6:0.8.6-1~bpo60+1, Copyright (c) 2000-2013 the Libav developers
>   built on Jul 23 2013 15:28:31 with gcc 4.4.5
> avconv: /build/libav-_lRc_4/libav-0.8.6/libavutil/mathematics.c:79: av_rescale_rnd: Assertion `c > 0' failed.
> Abort

I am unable to reproduce this issue with Libav version 0.8.9, and
therefore need to see a full backtrace. Please see
https://wiki.debian.org/HowToGetABacktrace for more details.

My current hypothesis is that there is something misconfigured with
your system (bad driver, or something) but libav should clearly give a
better error message than failing on some assertion in rounding code.

-- 
regards,
    Reinhard