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

[s.rawat]

Hi Moreover can some one point me in the right direction for the intent of
my mail --> I am trying to stream to stream the video content upto the
Android UI layer.I can findout the inteface on UI layer which accepts the
data(basically in buffer format(yuv422) to display ) but which file si need
to look into to see this.
I figured out ffmpeg.c is the one which records onto a file and ffplay.c is
the one which plays the recorded file, I need to stream the video (saving
it only when desired by the user besides it keeps in streaming the video
above), i need to stream those buffers upto the UI layer.Plz adviceme in
this direction.
Rgds,
saurabh
"..pain is temporary.....quitting lasts forever......"



On Mon, Dec 12, 2011 at 12:28 PM, s.rawat <imsaurabhrawat at gmail.com> 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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>>
>
>