[FFmpeg-user] External UVC Camera Video Streaming/Image Capturing using ffmpeg

dE . de.techno at gmail.com
Mon Dec 12 12:32:03 CET 2011


On 12/12/11 12:28, s.rawat wrote:
> I tried replcing this line with the line below in the build.sh
>    # FLAGS="$FLAGS --disable-everything --enable-indevs
> --enable-protocol=file"
>
>     FLAGS="$FLAGS --enable-indevs --enable-protocol=file"
> but it gave this error :
>
> ERROR: libvpx decoder version must be>=0.9.1
>
> i tried installing the dev package for libvpx from the synaptic maager, but
> still the same.Though I could see
> /lib/libvpx.so.0.9
> ./lib/libvpx.so.0.9.5
> ./lib/debug/usr/lib/libvpx.so.0.9.5
>
>
>   in the lib directory
> libvpx.so.0.9.5 is defintely present and which is certainly>  =0.9.1 , then
> Y I am getting this error.
> Any clue on this ?
>
> Rgds,
> Saurabh
>
>
> "..pain is temporary.....quitting lasts forever......"
>
>
>
> On Sat, Dec 10, 2011 at 7:43 PM, Carl Eugen Hoyos<cehoyos at ag.or.at>  wrote:
>
>> s.rawat<imsaurabhrawat<at>  gmail.com>  writes:
>>
>>> ffmpeg -y -t 25 -f video4linux2 -r 15 -s 320*240 -pix_fmt yuyv422 -i
>>>   /dev/video1 -an -f avi Test_QVGA1.avi
>>>
>>> But I am the following output/error(see in *Bold* at last) -->
>>>
>>> FFmpeg version UNKNOWN, Copyright (c) 2000-2010 the FFmpeg developers
>> This is old, please use current git head, see
>> http://ffmpeg.org/download.html
>>
>>> Requested output format 'avi' is not a suitable output format
>>> ioctl(VIDIOC_QBUF)
>> You specified "--disable-everything" to disable the avi muxer, so it does
>> not
>> work. I suggest you first try whatever you want to achieve with an
>> as-short-as-possible configure line (without --disable-everything and if
>> possible with static libraries), if it works, add --disable-everything and
>> the
>> necessary --enable options (and use --enable-shared if necessary).
>>
>> Carl Eugen
>>
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>> ffmpeg-user at ffmpeg.org
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>>
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Headers lie in /usr/include. In Synaptic, check the properties of of the 
installed -dev file to see it's files.


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