[gst-devel] Specifying video record interval

[Pavel Johnson]

Thanks!  The num-buffers parameter helps and the video stops recording,
however, the command pipeline I have (included below) continues recording
audio.  Is there a parameter to specify audio-time as well?  Ideally, a
single parameter for specifying the time for both audio and video would be
preferred by separate ones are OK as well.

Also, I would hope the pipeline would terminate automatically so that it can
be scripted.

gst-launch v4l2src ! 'video/x-raw-yuv,width=640,
height=480,framerate=30/1' ! \
tee name=t_vid ! queue ! videoflip method=horizontal-flip ! \
xvimagesink sync=false t_vid. ! queue ! \
videorate ! 'video/x-raw-yuv,framerate=30/1' ! queue ! mux. \
pulsesrc ! audio/x-raw-int,rate=22000,channels=1,width=16 ! queue ! \
audioconvert ! queue ! mux. avimux name=mux ! \
filesink location=/test.mpg

Thanks,
~Pavel

On Sun, Mar 7, 2010 at 7:30 PM, sudarshan bisht
<bisht.sudarshan at gmail.com>wrote:

> Hi ,
>       you can set "num-buffers" in v4l2src element , and I think number of
> buffers will depend on the framerate (fps)  and the time duration ( in
> seconds) .
>
>       Suppose fps is 30 frame/sec and the time duration is 30 secs then
> num-buffers will be 30*30 = 900 .
>
>       Try this out .
>
> On Mon, Mar 8, 2010 at 4:32 AM, Pavel Johnson <pavel.johnson at gmail.com>wrote:
>
>> Hello,
>>
>> I am new to Gstreamer so please bear with me if this has been addressed.
>>
>> I am trying to record video from a webcam using the command line below and
>> would like to specify the duration for which the video/audio needs to be
>> recorded, i.e. the command below should terminate after say 30 sec of
>> recording.  What command options and where in the command line can the
>> recording duration be included?  If there is no option, what tools are
>> available to achieve this?
>>
>> gst-launch v4l2src ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1'
>> ! \
>> tee name=t_vid ! queue ! videoflip method=horizontal-flip ! \
>> xvimagesink sync=false t_vid. ! queue ! \
>> videorate ! 'video/x-raw-yuv,framerate=30/1' ! queue ! mux. \
>> pulsesrc ! audio/x-raw-int,rate=22000,channels=1,width=16 ! queue ! \
>> audioconvert ! queue ! mux. avimux name=mux ! \
>> filesink location=/test.mpg
>>
>> TIA,
>> Pavel
>>
>>
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>
>
> --
> Regards,
>
> Sudarshan Bisht
>
>
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