Developer Guide

  • 2022.3
  • 10/25/2022
  • Public Content
Contents

GStreamer* Audio Pipeline

Run a GStreamer* audio pipeline using GStreamer* plugins in a Docker* container.

Run the Sample Application

  1. Check if your installation has the amr-gstreamer Docker* image.
    docker images |grep amr-gstreamer #if you have it installed, the result is: amr-gstreamer
    If the image is not installed, continuing with these steps
    triggers a build that takes longer than an hour
    (sometimes, a lot longer depending on the system resources and internet connection).
  2. If the image is not installed, Intel recommends installing the Robot Base Kit or Robot Complete Kit with the Get Started Guide for Robots.
  3. Go to the
    AMR_containers
    folder:
    cd <edge_insights_for_amr_path>/Edge_Insights_for_Autonomous_Mobile_Robots_<version>/AMR_containers
  4. Prepare the environment setup:
    source ./01_docker_sdk_env/docker_compose/common/docker_compose.source export CONTAINER_BASE_PATH=`pwd` export ROS_DOMAIN_ID=34
  5. Run an automated yml file that opens a GStreamer* sample application inside the EI for AMR Docker* container.
    CHOOSE_USER=eiforamr docker-compose -f 01_docker_sdk_env/docker_compose/05_tutorials/gstreamer_audio.tutorial.yml up
    Expected output:
    #gst-launch-1.0 filesrc location=/data_samples/media_samples/sample.ogg ! oggdemux ! vorbisdec ! audioconvert ! audioresample ! Testsink error: XDG_RUNTIME_DIR not set in the environment. Setting pipeline to PAUSED ... Pipeline is PREROLLING ... Pipeline is PREROLLED ... Setting pipeline to PLAYING ... New clock: GstSystemClock Got EOS from element "pipeline0". Execution ended after 0:01:14.349609320 Setting pipeline to PAUSED ... Setting pipeline to READY ... Setting pipeline to NULL ... Freeing pipeline ...
  6. To close this, do one of the following:
    • Type
      Ctrl-c
      in the terminal where you did the up command.
    • Run this command in another terminal:
      CHOOSE_USER=eiforamr docker-compose -f 01_docker_sdk_env/docker_compose/05_tutorials/gstreamer_audio.tutorial.yml down
  7. For an explanation of what happened, open the yml file:
    • The first 23 lines are from the EI for AMR infrastructure.
    • Line 26 plays the audio file using GStreamer*.
  8. To use your own audio, use the same yml file but update line 26 to target your own file.
    For example, copy the file:
    cp test.ogg ${CONTAINER_BASE_PATH}/01_docker_sdk_env/docker_compose/05_tutorials/test.ogg
    And update line 26 to:
    gst-launch-1.0 filesrc location=${CONTAINER_BASE_PATH}/01_docker_sdk_env/docker_compose/05_tutorials/test.ogg ! oggdemux ! vorbisdec ! audioconvert ! audioresample ! testsink

Troubleshooting

For general robot issues, go to: Troubleshooting for Robot Tutorials.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.