taking photos and show v4l2src stream with different sizes

[Thiago Santos]

On 01/22/2014 11:31 AM, Ian Davidson wrote:
> You might want to try putting videorate and videoscale elements in 
> each branch after the tee and before you specify the video caps.

You can also try using camerabin, it is a full pipeline in a single 
element and has the feature of having different resolutions for the 
viewfinder and captures. camerabin is available from gst-plugins-bad.

"gst-inspect-1.0 camerabin" will show you the different properties you 
can set and use the start-capture signal to take a picture. It will post 
a image-done message on the bus once the picture is taken.

--
Thiago

>
> Ian
>
> On 22/01/2014 12:17, ertasemre wrote:
>> Hi,
>> On my embedded linux platform I have 320x240 lcd display and usb 
>> webcam. I
>> can display my webcam view via "gst-launch -e v4l2src !
>> video/x-raw-yuv,width=320,height=240,framerate=30/1 ! ffmpegcolorspace !
>> fbdevsink device=/dev/fb0".
>> Also I can capture a frame using  of "gst-launch -e v4l2src 
>> num-buffers=1 !
>> video/x-raw-yuv,width=640,height=480,framerate=20/1 ! ffmpegcolorspace !
>> jpegenc !  filesink location=/tmp/test.jpg".
>> But I want to do above things at the same time (while my display is 
>> showing
>> webcam view I want to get a jpg image which must be 640x480 at 
>> least). Is
>> the any way to do this?
>> I have tried "gst-launch -e v4l2src num-buffers=100 ! tee name=t ! 
>> queue !
>> video/x-raw-yuv,width=640,height=480,framerate=30/1 ! ffmpegcolorspace !
>> jpegenc ! multifilesink location=/tmp/test%d.jpg t. ! queue !
>> video/x-raw-yuv,width=640,height=640,framerate=30/1 ! ffmpegcolorspace !
>> fbdevsink device=/dev/fb0 " but my lcd is 320x240 so I cant see full 
>> frame
>> on my lcd.
>> Is there any way to do this?
>> please help me.
>> Regards
>> Emre
>>
>>
>>
>>
>> -- 
>> View this message in context: 
>> http://gstreamer-devel.966125.n4.nabble.com/taking-photos-and-show-v4l2src-stream-with-different-sizes-tp4664825.html
>> Sent from the GStreamer-devel mailing list archive at Nabble.com.
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>
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