Frame resolution settings in gstreamer pipeline
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Frame resolution settings in gstreamer pipeline
 
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Hi Guys,
I am streaming my laptop screen on my IP based display using gstreamer.
Here is the pipeline on both ends:
Laptop:
C:\gstreamer\1.0\x86_64\bin\gst-launch-1.0.exe -v dx9screencapsrc ! queue ! videoconvert ! x264enc ! "video/x-h264,profile=baseline" ! h264parse config-interval=-1 ! rtph264pay pt=96 config-interval=-1 ! udpsink host=<ipaddr> port=5004 sync=true
IP Display:
gst-launch -v udpsrc port=5004 ! application/x-rtp, payload=96 ! rtph264depay ! vpudec low-latency=true ! imxv4l2sink sync=false
The problem is IP Display resolution is 1024x768 but the source plugin is generating 1920x1080, which is my laptop resolution..
I need to convert this to the resolution of IP Display, I modified the pipeline on the laptop to following:
C:\gstreamer\1.0\x86_64\bin\gst-launch-1.0.exe -v dx9screencapsrc ! video/x-raw, width=1024,height=768,framerate=30/1 !queue ! videoconvert ! x264enc ! "video/x-h264,profile=baseline" ! h264parse config-interval=-1 ! rtph264pay pt=96 config-interval=-1
! udpsink host=<IPAddress> port=5004 sync=true
It fails with the following error:
WARNING: erroneous pipeline: could not link dx9screencapsrc0 to queue0, dx9screencapsrc0 can't handle caps video/x-raw, width=(int)1024, height=(int)768, framerate=(fraction)30/1
Looking at the caps of dx9screencapsrc using gst-inspect-1.0, it has cap for width and height.
How can I acheive my requirement of capturing the whole screen but converting it to 1024x768
Thanks,
Mohammad Jamal Mohiuddin
Software Engineer, Retail Hosp/HW NCR Corporation India Pvt Ltd. [hidden email] | www.ncr.com << OLE Object: Picture (Device Independent Bitmap) >>
_______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Frame resolution settings in gstreamer pipeline
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Hi Mohammed,
This was my link when i was using Tx2 hardware , you can modify your command based on this gst-launch-1.0 nvcamerasrc sensor-id=0 ! queue ! 'video/x-raw(memory:NVMM),width=1280, height=720, format=NV12' ! omxh264enc bitrate=3000000 control-rate=2 ! 'video/x-h264, streamformat=(string)byte-stream' ! h264parse ! flvmux name=mux alsasrc device=plughw:1 ! audioresample ! audio/x-raw,rate=48000,channels=1 ! queue ! voaacenc bitrate=32000 ! queue ! mux. mux. ! queue ! rtmpsink location='rtmp://192.168.1.236:1935/live/102' -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
adi
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RE: Frame resolution settings in gstreamer pipeline
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I got error.
C:\Windows\System32>C:\gstreamer\1.0\x86_64\bin\gst-launch-1.0.exe -v dx9screencapsrc ! queue ! 'video/x-raw,width=1024,height=768' ! videoconvert ! x264enc ! "video/x-h264,profile=baseline" ! h264parse config-interval=-1 ! rtph264pay pt=96 config-interval=-1 ! udpsink host=153.77.205.139 port=5009 sync=true (gst-launch-1.0:10452): GStreamer-CRITICAL **: gst_element_make_from_uri: assertion 'gst_uri_is_valid (uri)' failed WARNING: erroneous pipeline: syntax error -----Original Message----- From: gstreamer-devel [mailto:[hidden email]] On Behalf Of aasim Sent: Friday, February 02, 2018 11:54 AM To: [hidden email] Subject: Re: Frame resolution settings in gstreamer pipeline Hi Mohammed, This was my link when i was using Tx2 hardware , you can modify your command based on this gst-launch-1.0 nvcamerasrc sensor-id=0 ! queue ! 'video/x-raw(memory:NVMM),width=1280, height=720, format=NV12' ! omxh264enc bitrate=3000000 control-rate=2 ! 'video/x-h264, streamformat=(string)byte-stream' ! h264parse ! flvmux name=mux alsasrc device=plughw:1 ! audioresample ! audio/x-raw,rate=48000,channels=1 ! queue ! voaacenc bitrate=32000 ! queue ! mux. mux. ! queue ! rtmpsink location='rtmp://192.168.1.236:1935/live/102' -- Sent from: https://urldefense.proofpoint.com/v2/url?u=http-3A__gstreamer-2Ddevel.966125.n4.nabble.com_&d=DwIGaQ&c=gJN2jf8AyP5Q6Np0yWY19w&r=HoPNfXl6KDHgz0TaiQjVDg&m=sklaskU7KJ6p3REakQyi_8l3LOFkCvgIOPJLrjp_2cI&s=3LQttvyVhDWHQp-waw6GRdDTTAVMR-V0jkAdW7QMDjo&e= _______________________________________________ gstreamer-devel mailing list [hidden email] https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.freedesktop.org_mailman_listinfo_gstreamer-2Ddevel&d=DwIGaQ&c=gJN2jf8AyP5Q6Np0yWY19w&r=HoPNfXl6KDHgz0TaiQjVDg&m=sklaskU7KJ6p3REakQyi_8l3LOFkCvgIOPJLrjp_2cI&s=ybL9WonaPp0ZHb9rKeMNxWIIyP0Oum2-LdkAmmaNC-4&e= _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Frame resolution settings in gstreamer pipeline
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In reply to this post by Mohammad, Jamal M
On Fri, 2 Feb 2018 04:37:10 +0000
"Mohammad, Jamal M" <[hidden email]> wrote: > Hi Guys, > > I am streaming my laptop screen on my IP based display using gstreamer. > Here is the pipeline on both ends: > > Laptop: > C:\gstreamer\1.0\x86_64\bin\gst-launch-1.0.exe -v dx9screencapsrc ! queue ! videoconvert ! x264enc ! "video/x-h264,profile=baseline" ! h264parse config-interval=-1 ! rtph264pay pt=96 config-interval=-1 ! udpsink host=<ipaddr> port=5004 sync=true > [...] > I need to convert this to the resolution of IP Display, I modified the pipeline on the laptop to following: > C:\gstreamer\1.0\x86_64\bin\gst-launch-1.0.exe -v dx9screencapsrc ! video/x-raw, width=1024,height=768,framerate=30/1 !queue ! videoconvert ! x264enc ! "video/x-h264,profile=baseline" ! h264parse config-interval=-1 ! rtph264pay pt=96 config-interval=-1 ! udpsink host=<IPAddress> port=5004 sync=true > > It fails with the following error: > WARNING: erroneous pipeline: could not link dx9screencapsrc0 to queue0, dx9screencapsrc0 can't handle caps video/x-raw, width=(int)1024, height=(int)768, framerate=(fraction)30/1 > > Looking at the caps of dx9screencapsrc using gst-inspect-1.0, it has cap for width and height. > How can I acheive my requirement of capturing the whole screen but converting it to 1024x768 > The dx9screencapsrc element may define caps for width and height, but your instance only accepts some values for it, you should see the values in the output of "gst-launch-1.0 -v" if you look close enough. So requesting invalid values on the source element will make caps negotiation to fail. What you really want to do here is to *resize* the captured 1920x1080 frame down to 1024x768 before encoding it, and that can be done with the videoscale element: gst-launch-1.0.exe -v dx9screencapsrc ! queue ! videoconvert ! videoscale ! video/x-raw,width=1024,height=768 ! x264enc ... Ciao, Antonio -- Antonio Ospite https://ao2.it https://twitter.com/ao2it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
RE: Frame resolution settings in gstreamer pipeline
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Thanks for your help..
The caps has changed to 1024,768 but the display is not full screen. -----Original Message----- From: Antonio Ospite [mailto:[hidden email]] Sent: Friday, February 02, 2018 3:11 PM To: [hidden email] Cc: Mohammad, Jamal M <[hidden email]> Subject: Re: Frame resolution settings in gstreamer pipeline On Fri, 2 Feb 2018 04:37:10 +0000 "Mohammad, Jamal M" <[hidden email]> wrote: > Hi Guys, > > I am streaming my laptop screen on my IP based display using gstreamer. > Here is the pipeline on both ends: > > Laptop: > C:\gstreamer\1.0\x86_64\bin\gst-launch-1.0.exe -v dx9screencapsrc ! > queue ! videoconvert ! x264enc ! "video/x-h264,profile=baseline" ! > h264parse config-interval=-1 ! rtph264pay pt=96 config-interval=-1 ! > udpsink host=<ipaddr> port=5004 sync=true > > I need to convert this to the resolution of IP Display, I modified the pipeline on the laptop to following: > C:\gstreamer\1.0\x86_64\bin\gst-launch-1.0.exe -v dx9screencapsrc ! > video/x-raw, width=1024,height=768,framerate=30/1 !queue ! > videoconvert ! x264enc ! "video/x-h264,profile=baseline" ! h264parse > config-interval=-1 ! rtph264pay pt=96 config-interval=-1 ! udpsink > host=<IPAddress> port=5004 sync=true > > It fails with the following error: > WARNING: erroneous pipeline: could not link dx9screencapsrc0 to > queue0, dx9screencapsrc0 can't handle caps video/x-raw, > width=(int)1024, height=(int)768, framerate=(fraction)30/1 > > Looking at the caps of dx9screencapsrc using gst-inspect-1.0, it has cap for width and height. > How can I acheive my requirement of capturing the whole screen but > converting it to 1024x768 > The dx9screencapsrc element may define caps for width and height, but your instance only accepts some values for it, you should see the values in the output of "gst-launch-1.0 -v" if you look close enough. So requesting invalid values on the source element will make caps negotiation to fail. What you really want to do here is to *resize* the captured 1920x1080 frame down to 1024x768 before encoding it, and that can be done with the videoscale element: gst-launch-1.0.exe -v dx9screencapsrc ! queue ! videoconvert ! videoscale ! video/x-raw,width=1024,height=768 ! x264enc ... Ciao, Antonio -- Antonio Ospite https://urldefense.proofpoint.com/v2/url?u=https-3A__ao2.it&d=DwICAg&c=gJN2jf8AyP5Q6Np0yWY19w&r=4h__2a8-7N65qoDnmtsyGh_QYq3kPCn-Loy2L0LHnCs&m=kCnVF3RJC-HQMatVBVA0ElpzZ6jvmU-gTyjHhjKH95A&s=6YX4r3Vzk51QYD59fwOIklf7Pzz2pkc3D9m2TT5suDU&e= https://urldefense.proofpoint.com/v2/url?u=https-3A__twitter.com_ao2it&d=DwICAg&c=gJN2jf8AyP5Q6Np0yWY19w&r=4h__2a8-7N65qoDnmtsyGh_QYq3kPCn-Loy2L0LHnCs&m=kCnVF3RJC-HQMatVBVA0ElpzZ6jvmU-gTyjHhjKH95A&s=Jxjd0777746yBGcgWNzF0vKTAj-fh6vgNLb6X2Fyey0&e= A: Because it messes up the order in which people normally read text. See https://urldefense.proofpoint.com/v2/url?u=http-3A__en.wikipedia.org_wiki_Posting-5Fstyle&d=DwICAg&c=gJN2jf8AyP5Q6Np0yWY19w&r=4h__2a8-7N65qoDnmtsyGh_QYq3kPCn-Loy2L0LHnCs&m=kCnVF3RJC-HQMatVBVA0ElpzZ6jvmU-gTyjHhjKH95A&s=xTS5sZAKaR_th2MAfIb8NWqEcVe333OPy5wOLm7octw&e= Q: Why is top-posting such a bad thing? _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Frame resolution settings in gstreamer pipeline
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On Fri, 2 Feb 2018 09:50:53 +0000
"Mohammad, Jamal M" <[hidden email]> wrote: > Thanks for your help.. > > The caps has changed to 1024,768 but the display is not full screen. > Do you mean that you see borders around the picture? Or do you see only a part of the captured screen? If it's the former it's just that 1920x1080 is 16:9 while 1024x768 is 4:3, and videoscale adds borders by default. Ciao, Antonio -- Antonio Ospite https://ao2.it https://twitter.com/ao2it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
RE: Frame resolution settings in gstreamer pipeline
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