GStreamer Daemon - Javascript Video Player Example

GStreamer Daemon
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Introduction to GStreamer Daemon Javascript Video Player Example

This is one concrete usage example of the GStreamer Daemon along with a Javascript + HTML Application. In this case, the application uses the Javascript GSTD API to communicate with GStreamer Daemon through the HTTP server.

The application consists of a Simple Video Player with several capabilities:

1. Select the input (Camera or video file)
2. Regular and reverse video playback.
3. Trick modes (fast-forward, speed change, seek to position).
4. Read messages from the GSTD bus.

Usage

Server side

A regular localhost setup will use just one computer with the following variables. You can also use a local area network to have multiple devices.

GSTD_ADDRESS=127.0.0.1
GSTD_PORT=5000
SERVER_ADDRESS=127.0.0.1
SERVER_PORT=8000

Run gstd

gstd --enable-http-protocol --http-address=${GSTD_ADDRESS} --http-port=${GSTD_PORT}

Then move to web examples and run the server:

cd examples/web/

./setup_http_server.sh -a $SERVER_ADDRESS -p $SERVER_PORT

Client side

On your browser go to:

http://127.0.0.1:8000/  (Use the IP and port that you configured in the last step)

Now you can see the menu with the available examples On this page, you need to configure the IP and Port where GstD is running, in this case, IP=127.0.0.1 and Port=5000.

Menu gstd examples

Example 1: Video player

Now select the first example "Video player" and you can see the following page. It is possible to enter the example without the menu, in that case it is necessary to configure the Address and port as shown in the picture.

Controls:

• Select the input
  • Camera: Select the camera that you want to use, e.g. /dev/video0 .
  • File: Select the video file that you want to use, e.g. /home/user/videos/video.mp4 .
• Create the pipelines
• Delete the pipeline
• Pay, Pause, Stop
• Speed
• Playback direction ( > Forward, < backward )
• Jump to a specific time
• The console shows the errors, warnings, and logs of gstd

Example 2: GSTD Controller

Now select the second example "GSTD controller" and you can see the following page It is possible to enter the example without the menu, in that case it is necessary to configure the Address and port as shown in the picture.

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GSTD controller

Controls:

• Pipeline e.g videotestsrc ! autovideosink
• Create the pipelines
• Delete the pipeline
• Pay, Pause, Stop
• Speed
• Playback direction ( > Forward, < backward )
• Jump to a specific time
• The console shows the errors, warnings, and logs of gstd

Advanced controls:

• Elements selection (Select the element to modify the properties)
• Property selection (Select the property that you want to modify)
• New value of the selected property
• Filter the bus
• Send an EOS
• Send a Flush Start and Stop