# Local use cases

Source: [https://docs.qualcomm.com/doc/80-70014-50/topic/local-use-cases.html](https://docs.qualcomm.com/doc/80-70014-50/topic/local-use-cases.html)

## Prerequisites

Enable display:

    vi /etc/default/gstd
         OPTARGS=" -a 0.0.0.0"
    
         XDG_RUNTIME_DIR=/dev/socket/weston
    
         WAYLAND_DISPLAY=wayland-1
    
    systemctl daemon-reload
    systemctl restart gstdCopy to clipboard

## Single stream encode

1. Create the
                    pipeline:

        gst-client-1.0 pipeline_create enc1 qtiqmmfsrc name=camsrc ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=5 output-io-mode=5 ! h264parse ! queue ! mp4mux ! queue ! filesink location=/tmp/enc1.mp4Copy to clipboard
2. Control the
                        pipeline:

        gst-client-1.0 pipeline_play enc1Copy to clipboard

    - Send end of stream
                            (EOS):

            gst-client-1.0 event_eos enc1Copy to clipboard
    - Stop the
                            pipeline:

            gst-client-1.0 pipeline_stop enc1Copy to clipboard

## Multistream encode

1. Create the
                    pipeline:

        gst-client-1.0 pipeline_create enc2 qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=5 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/tmp/mux1.mp4" \ camsrc. ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=5 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/tmp/mux2.mp4"Copy to clipboard
2. Control the
                        pipeline:

        gst-client-1.0 pipeline_play enc2Copy to clipboard

    - Send
                            EOS:

            gst-client-1.0 event_eos enc2Copy to clipboard
    - Stop the
                            pipeline:

            gst-client-1.0 pipeline_stop enc2Copy to clipboard

## Single display

1. Create the
                    pipeline:

        gst-client-1.0 pipeline_create dis1 qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc ! waylandsink fullscreen=true async=true sync=falseCopy to clipboard
2. Control the pipeline:
    - Play the
                            pipeline:

            gst-client-1.0 pipeline_play dis1Copy to clipboard
    - Pause the
                            pipeline:

            gst-client-1.0 pipeline_pause dis1Copy to clipboard
    - Stop the
                            pipeline:

            gst-client-1.0 pipeline_stop dis1Copy to clipboard

## Multi display

1. Create the
                    pipeline:

        gst-client-1.0 pipeline_create dis2 qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc ! waylandsink x=0 y=0 width=500 height=400 async=true sync=false camsrc. ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc ! waylandsink x=510 y=0 width=500 height=400 async=true sync=falseCopy to clipboard
2. Control the pipeline:
    - Play the
                            pipeline:

            gst-client-1.0 pipeline_play dis2Copy to clipboard
    - Pause the
                            pipeline:

            gst-client-1.0 pipeline_pause dis2Copy to clipboard
    - Stop the
                            pipeline:

            gst-client-1.0 pipeline_stop dis2Copy to clipboard

**Parent Topic:** [GStreamer daemon](https://docs.qualcomm.com/doc/80-70014-50/topic/gstreamer-daemon.html)

Last Published: Oct 27, 2025

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