try this, gst-launch-0.10 v4lsrc device=/dev/video0 ! ffmpegcolorspace ! TIVidenc ! queue ! TIViddec ! TIDmaiVideoSink displayStd=fbdev displayDevice=/dev/fb/3 videoStd=D1_NTSC videoOutput=COMPOSITE resizer=TRUE accelFrameCopy=TRUE
With best regards, Venkatachala Upadhya| Extn: 65395| -- From: Purushottam R S [mailto:[email protected]] Sent: 11 May, 2009 4:35 PM To: [email protected]; Venkatachala Upadhya Subject: Re: USB Camera and H264 Encoder ..... Still I get the same error, I have Zippys camera. Which generally work on desktop with v4lsrc. Any other input.... -purush ________________________________ From: Venkatachala Upadhya <[email protected]> To: Purushottam R S <[email protected]>; "[email protected]" <[email protected]> Sent: Monday, 11 May, 2009 3:04:41 PM Subject: RE: USB Camera and H264 Encoder ..... Hi, Try this pipeline. I hope that camera you are using will support UYVY format of raw YUV frame. gst-launch-0.10 v4lsrc device=/dev/video0 ! capsfilter caps="video/x-raw-yuv,format=(fourcc)UYVY,width=(int)[16,352],height=(int)[16,288],framerate=(fraction)30/1" ! TIVidenc ! queue ! TIViddec ! TIDmaiVideoSink displayStd=fbdev displayDevice=/dev/fb/3 videoStd=D1_NTSC videoOutput=COMPOSITE resizer=TRUE accelFrameCopy=TRUE With best regards, Venkatachala Upadhya| Extn: 65395| -- From: [email protected] [mailto:[email protected]] On Behalf Of Purushottam R S Sent: 11 May, 2009 11:26 AM To: [email protected] Subject: USB Camera and H264 Encoder ..... Hi all, I am using latest gstreamer dmai plugins, and trying to use video encoder /decoder and USB Camera. But I get " Count not negotiate the format" error. Has anybody tried using it in following way... USB camera->H264 encode ->H264 Decode-> DmaiVideoSink (most) USB camera never works with v4l2src element. Here is the actual pipeline and error message gst-launch-0.10 v4lsrc device=/dev/video0 ! TIVidenc ! queue ! TIViddec ! TIDmaiVideoSink displayStd=fbdev displayDevice=/dev/fb/3 videoStd=D1_NTSC videoOutput=COMPOSITE resizer=TRUE accelFrameCopy=TRUE ERROR: Pipeline doesn't want to pause. ERROR: from element /GstPipeline:pipeline0/GstV4lSrc:v4lsrc0: Could not negotiate format Additional debug info: gstbasesrc.c(2426): gst_base_src_start (): /GstPipeline:pipeline0/GstV4lSrc:v4lsrc0: Check your filtered caps, if any Setting pipeline to NULL ... FREEING pipeline .... One reason I could see is , v4lsrc gives I420 format and encoder accepts UYVY , is that the reason ..? Please let me know how to fix this. regards Purush ________________________________ Explore your hobbies and interests. Click here to begin.<http://in.rd.yahoo.com/tagline_groups_6/*http:/in.promos.yahoo.com/groups/> ________________________________ http://www.mindtree.com/email/disclaimer.html ________________________________ Bollywood news, movie reviews, film trailers and more! Click here..<http://in.rd.yahoo.com/tagline_movies_1/*http:/in.movies.yahoo.com/?wm=n/> ________________________________ http://www.mindtree.com/email/disclaimer.html
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