UDP vs TCP

[it]

Hi Chuck,

This is what it looks like now:

gst-launch -v v4l2src device=/dev/video0 queue-size=1 always-copy=0 ! 
videorate ! videoscale ! ffmpegcolorspace ! videobalance brightness=.3 
contrast=.8 ! gamma gamma = .5 ! video/x-raw-yuv, framerate=30000/1001, 
width=640, height=480, pixel-aspect-ratio=1/1 ! tee name=t1  \
t1. ! queue ! xvimagesink sync=false \
t1. ! queue ! theoraenc quality=63 keyframe-force=1 ! filesink 
location=video.ogg \
t1. ! queue !  rtpvrawpay mtp=64 pt=96! udpsink host=192.168.43.134 
port=5000

gst-launch  -v udpsrc caps="application/x-rtp, format=I420, 
framerate=30000/1001, width=640, height=480, interlaced=(boolean)false, 
pixel-aspect-ratio=1/1" port=5000 ! rtpvrawdepay ! xvimagesink

I can see no syntax to put mtu or pt on rtpvrawdepay.

I get no screen and this is the text print out:

image at image-TAICHI21A:~$ gst-launch  -v udpsrc caps="application/x-rtp, 
format=I420, framerate=30000/1001, width=640, height=480, 
interlaced=(boolean)false, pixel-aspect-ratio=1/1" port=5000 ! 
rtpvrawdepay ! xvimagesink
Setting pipeline to PAUSED ...
/GstPipeline:pipeline0/GstUDPSrc:udpsrc0.GstPad:src: caps = 
application/x-rtp, media=(string)video, payload=(int)96, 
clock-rate=(int)90000, encoding-name=(string)RAW, format=(string)I420, 
framerate=(fraction)30000/1001, width=(int)640, height=(int)480, 
interlaced=(boolean)false, pixel-aspect-ratio=(fraction)1/1
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

Any ideas?

Regards

Steve.


On 24/03/14 20:27, Chuck Crisler wrote:
> Was it an oversight that you didn't specify the format in the 
> capsfilter for the udp pipeline? Shouldn't you specify a payload type 
> for the rtp payloader and depayloader (even through there is a 
> default)? Do you need to specify an MTU size (< 1400) for the mobile 
> network? Shouldn't you reverse the videorate and videoscale? I don't 
> really know how these are being used but you don't want to scale 
> frames that will be discarded in videorate.
>