GStreamer UDP Streaming

Document created by Leonardo Sandoval Gonzalez Employee on Oct 25, 2013Last modified by Leonardo Sandoval Gonzalez Employee on Oct 29, 2013
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Notes:

 

+ Run the pipelines in the presented order

+ The above example streams H263 video.

+ the gl command is equal to 'gst-launch' (two instead of 'gst-launch'.size() chars )

+ Pending work: H264 test cases and other scenarios.

 

ScenarioShell variables and pipelines

# Export always these variables on the i.MX

export VSALPHA=1

export WIDTH=320

export HEIGHT=240

export SEP=20

# decoded and displayed

Uni-directional: from PC to i.MX. PC is streaming 4 H.263 streams and i.MX displays all in the screen.

# On i.MX (Target)

gl udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8890 ! rtph263depay ! vpudec ! mfw_isink sync=false axis-top=0 axis-left=0 disp-width=$WIDTH disp-height=$HEIGHT &

 

gl udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8891 ! rtph263depay ! vpudec ! mfw_isink sync=false axis-top=0 axis-left=`expr $WIDTH + $SEP` disp-width=$WIDTH disp-height=$HEIGHT &

 

gl udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8892 ! rtph263depay ! vpudec ! mfw_isink sync=false axis-top=`expr $HEIGHT + $SEP` axis-left=0   disp-width=$WIDTH disp-height=$HEIGHT &

 

gl udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8893 ! rtph263depay ! vpudec ! mfw_isink sync=false axis-top=`expr $HEIGHT + $SEP` axis-left=`expr $WIDTH + $SEP` disp-width=$WIDTH disp-height=$HEIGHT &


# On PC (Source)

 

export IP_iMX= # Place the IP address of the i.MX board

gst-launch -v videotestsrc ! ffenc_h263 ! rtph263pay ! multiudpsink clients=IP_iMX:8890,IP_iMX:8891,IP_iMX:8892,$IP_iMX:8893

Uni-directional: from PC to i.MX. PC is streaming one H.264 stream and i.MX displays it on the screen

# On i.MX (Target)

# Make sure you set the caps correctly, specially the sprop-parameter-sets cap. The one show below is just an example and works with the source file sintel_trailer-1080p.mp4


export VSALPHA=1

GST_DEBUG=*:2 gst-launch -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)\"Z2QAMqw05gHgCJ+WEAAAAwAQAAADAwDxgxmg\\,aOl4TLIs\", payload=(int)96' port=8890 ! rtph264depay ! vpudec ! mfw_isink sync=false

 

# On PC (Source)

gst-launch -v filesrc location=sintel_trailer-1080p.mp4 typefind=true ! qtdemux ! rtph264pay ! multiudpsink clients=10.112.102.168:8890

Bi-directional: PC is streaming 4 H.263 streams to i.MX, iMX displays it and sends the four back to PC

# On i.MX

export IP_PC= # Place the IP address of the PC host machine

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8890 ! rtph263depay ! vpudec ! tee name=t ! queue ! mfw_isink sync=false axis-top=0 axis-left=0 disp-width=$WIDTH disp-height=$HEIGHT t. ! queue ! vpuenc codec=5 ! rtph263pay ! udpsink host=$IP_PC port=9990 &

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8891 ! rtph263depay ! vpudec ! tee name=t ! queue ! mfw_isink sync=false axis-top=0 axis-left=`expr $WIDTH + $SEP` disp-width=$WIDTH disp-height=$HEIGHT t. ! queue ! vpuenc codec=5 ! rtph263pay ! udpsink host=$IP_PC port=9991 &

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8892 ! rtph263depay ! vpudec ! tee name=t ! queue ! mfw_isink sync=false axis-top=`expr $HEIGHT + $SEP` axis-left=0   disp-width=$WIDTH disp-height=$HEIGHT t. ! queue ! vpuenc codec=5 ! rtph263pay ! udpsink host=$IP_PC port=9992 &

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=8893 ! rtph263depay ! vpudec ! tee name=t ! queue ! mfw_isink sync=false axis-top=`expr $HEIGHT + $SEP` axis-left=`expr $WIDTH + $SEP` disp-width=$WIDTH disp-height=$HEIGHT t. ! queue ! vpuenc codec=5 ! rtph263pay ! udpsink host=$IP_PC port=9993 &

 

# On PC

## Stream received from iMX

export IP_iMX= # Place the IP address of the i.MX board

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=9990 ! rtph263depay ! ffdec_h263 ! xvimagesink &

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=9991 ! rtph263depay ! ffdec_h263 ! xvimagesink &

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=9992 ! rtph263depay ! ffdec_h263 ! xvimagesink &

gl -v udpsrc caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263' port=9993 ! rtph263depay ! ffdec_h263 ! xvimagesink &

 

 

 

## Stream sent to iMX

gl -v videotestsrc ! videoscale ! video/x-raw-yuv,width=\(int\)1408,height=\(int\)1152 !  ffenc_h263 ! rtph263pay ! udpsink host=$IP_iMX port=8890 &

gl -v videotestsrc ! videoscale ! video/x-raw-yuv,width=\(int\)1408,height=\(int\)1152 ! ffenc_h263 ! rtph263pay ! udpsink host=$IP_iMX port=8891 &

gl -v videotestsrc ! videoscale ! video/x-raw-yuv,width=\(int\)1408,height=\(int\)1152 ! ffenc_h263 ! rtph263pay ! udpsink host=$IP_iMX port=8892 &

gl -v videotestsrc ! videoscale ! video/x-raw-yuv,width=\(int\)1408,height=\(int\)1152 ! ffenc_h263 ! rtph263pay ! udpsink host=$IP_iMX port=8893 &

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