converting jpeg to h263p and streaming over RTP

[Aleksander]

so the answer is:
use  ffenc_h263 ! rtph263ppay instead of  ffenc_h263p ! rtph263ppay

I don't know why, so please, explain people!:D



On Sat, Mar 16, 2013 at 11:38 AM, Aleksander <aleek998 at gmail.com> wrote:

> Naaah, still not working :)
>
> I've added videoscale, because I was not sure, if rtph263ppay likes
> 640x480 video:
>
> gst-launch-0.10 -v -e v4l2src device=/dev/video0 \
> ! 'image/jpeg,width=640,height=480,framerate=30/1'  \
> ! jpegdec  \
> ! videoscale \
> ! "video/x-raw-yuv, format=(fourcc)I420, width=(int)352,
> height=(int)288, framerate=(fraction)30/1"\
> ! ffmpegcolorspace \
> ! ffenc_h263p \
> ! rtph263ppay \
> ! fakesink
>
> Still, it doesn't work unless I remove rtph263ppay. Here is some
> output of the working (without rtph263ppay) example, maybe it will
> give you some clue:
> Setting pipeline to PAUSED ...
> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps =
> image/jpeg, width=(int)640, height=(int)480,
> interlaced=(boolean)false, pixel-aspect-ratio=(fraction)1/1,
> framerate=(fraction)30/1, format=(fourcc)I420, sof-marker=(int)0
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps =
> image/jpeg, width=(int)640, height=(int)480,
> interlaced=(boolean)false, pixel-aspect-ratio=(fraction)1/1,
> framerate=(fraction)30/1, format=(fourcc)I420, sof-marker=(int)0
> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps =
> image/jpeg, width=(int)640, height=(int)480,
> interlaced=(boolean)false, pixel-aspect-ratio=(fraction)1/1,
> framerate=(fraction)30/1, format=(fourcc)I420, sof-marker=(int)0
> /GstPipeline:pipeline0/GstJpegDec:jpegdec0.GstPad:sink: caps =
> image/jpeg, width=(int)640, height=(int)480,
> interlaced=(boolean)false, pixel-aspect-ratio=(fraction)1/1,
> framerate=(fraction)30/1, format=(fourcc)I420, sof-marker=(int)0
> /GstPipeline:pipeline0/GstJpegDec:jpegdec0.GstPad:src: caps =
> video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480,
> framerate=(fraction)30/1
> /GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:src: caps =
> video/x-raw-yuv, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, format=(fourcc)I420,
> pixel-aspect-ratio=(fraction)12/11
> /GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:sink: caps =
> video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480,
> framerate=(fraction)30/1
> /GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:src: caps =
> video/x-raw-yuv, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, format=(fourcc)I420,
> pixel-aspect-ratio=(fraction)12/11
> /GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:sink: caps =
> video/x-raw-yuv, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, format=(fourcc)I420,
> pixel-aspect-ratio=(fraction)12/11
> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps =
> video/x-raw-yuv, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, format=(fourcc)I420,
> pixel-aspect-ratio=(fraction)12/11
> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps =
> video/x-raw-yuv, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, format=(fourcc)I420,
> pixel-aspect-ratio=(fraction)12/11
> /GstPipeline:pipeline0/ffenc_h263p:ffenc_h263p0.GstPad:src: caps =
> video/x-h263, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, variant=(string)itu,
> h263version=(string)h263p, annex-f=(boolean)true,
> annex-j=(boolean)true, annex-i=(boolean)true, annex-t=(boolean)true
> /GstPipeline:pipeline0/ffenc_h263p:ffenc_h263p0.GstPad:sink: caps =
> video/x-raw-yuv, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, format=(fourcc)I420,
> pixel-aspect-ratio=(fraction)12/11
> /GstPipeline:pipeline0/GstFakeSink:fakesink0.GstPad:sink: caps =
> video/x-h263, width=(int)352, height=(int)288,
> framerate=(fraction)30/1, variant=(string)itu,
> h263version=(string)h263p, annex-f=(boolean)true,
> annex-j=(boolean)true, annex-i=(boolean)true, annex-t=(boolean)true
> /GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "preroll
>  ******* "
> /GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "event
> ******* (fakesink0:sink) E (type: 102, GstEventNewsegment,
> update=(boolean)false, rate=(double)1, applied-rate=(double)1,
> format=(GstFormat)GST_FORMAT_TIME, start=(gint64)0, stop=(gint64)-1,
> position=(gint64)0;) 0x1b5b140"
> /GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain
> ******* (fakesink0:sink) (15059 bytes, timestamp: 0:00:00.103378443,
> duration: 0:00:00.000000000, offset: -1, offset_end: -1, flags: 0 )
> 0x7fa290002150"
> [...]
>
> On Sun, Mar 10, 2013 at 4:56 PM, Nicolas Dufresne
> <nicolas.dufresne at collabora.co.uk> wrote:
> > Le dimanche 10 mars 2013 à 12:28 +0100, Aleksander Dutkowski a écrit :
> >
> > but this one...
> > gst-launch-0.10 -v -e v4l2src device=/dev/video0 \
> > ! 'image/jpeg,width=640,height=480,framerate=30/1'  \
> > ! jpegdec  \
> > ! "video/x-raw-yuv, format=(fourcc)I420, width=(int)640,
> > height=(int)480, framerate=(fraction)30/1" \
> > ! ffmpegcolorspace \
> > ! ffenc_h263p \
> > ! "video/x-h263, width=(int)640, height=(int)480,
> > framerate=(fraction)30/1, variant=(string)itu,
> > h263version=(string)h263p, annex-f=(boolean)true,
> > annex-j=(boolean)true, annex-i=(boolean)true, annex-t=(boolean)true" \
> > ! rtph263ppay \
> > ! fakesink
> >
> > ... results in following error:
> > Setting pipeline to PAUSED ...
> > ERROR: Pipeline doesn't want to pause.
> > ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could
> > not negotiate format
> > Additional debug info:
> > gstbasesrc.c(2830): gst_base_src_start ():
> > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
> > Check your filtered caps, if any
> > Setting pipeline to NULL ...
> > Freeing pipeline ...
> >
> > I'm confused, why v4l2src is crashing, as I add element to the end of
> > the pipe. I checked src and sink of all elements, and it looks good.
> >
> >
> > My suggestion would be to not force the caps as you are doing, and let
> the
> > element negotiate. In my opinion, only the caps filster after the source
> is
> > useful. If you need specific encoder parameter, set them on encoder
> > properties instead. This will most likely work.
> >
> > Nicolas
> >
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
> >
>
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