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Streamer example

This streamer can be used to publish the following types of streams on Web Call Server

  • WebRTC
  • RTMFP
  • RTMP

On the screenshot below a stream is being published from the client.


In the URL specified in the input field on the screenshot
- test.flashphoner.com is the address of the WCS server
- 48ad1496 is the stream name

Two videos are played on the page
- 'Local' - video from the camera
- 'Preview' - the video as received from the server

Code of the example

The path to the source code of the example on WCS server is:

/usr/local/FlashphonerWebCallServer/client/examples/demo/streaming/streamer

steamer.css - file with styles
steamer.html - page of the streamer
steamer.js - script providing functionality for the streamer

This example can be tested using the following address:

https://host:8888/client/examples/demo/streaming/streamer/streamer.html

Here host is the address of the WCS server.

Work with code of the streamer

To analyze the code, let's take the version of file streamer.js with hash 66cc393, which is available here and can be downloaded with corresponding build 0.5.28.2753.133.

1. Initialization of the API

Flashphoner.init() code

Flashphoner.init({flashMediaProviderSwfLocation: '../../../../media-provider.swf'});

2. Connection to server.

Flashphoner.createSession() code

Flashphoner.createSession({urlServer: url}).on(SESSION_STATUS.ESTABLISHED, function(session){
    //session connected, start streaming
    startStreaming(session);
}).on(SESSION_STATUS.DISCONNECTED, function(){
    setStatus(SESSION_STATUS.DISCONNECTED);
    $('#url').prop('disabled', false);
    onStopped();
}).on(SESSION_STATUS.FAILED, function(){
    setStatus(SESSION_STATUS.FAILED);
    $('#url').prop('disabled', false);
    onStopped();
});

3. Receiving the event confirming successful connection.

ConnectionStatusEvent ESTABLISHED code

Flashphoner.createSession({urlServer: url}).on(SESSION_STATUS.ESTABLISHED, function(session){
    //session connected, start streaming
    startStreaming(session);
}).on(SESSION_STATUS.DISCONNECTED, function(){
    ...
}).on(SESSION_STATUS.FAILED, function(){
    ...
});

4. Video streaming. 

session.createStream(), publish() code

Parameters passed to createStream():

streamName - name of stream;

localVideo - div-element to display video from camera.

session.createStream({
    name: streamName,
    display: localVideo,
    cacheLocalResources: true
    ...
}).publish();

5. Receiving the event confirming successful streaming

StreamStatusEvent PUBLISHING code

On receiving the event, preview stream is created with createStream(), and play() is called to play it.

session.createStream({
    name: streamName,
    display: localVideo,
    cacheLocalResources: true
}).on(STREAM_STATUS.PUBLISHING, function(publishStream){
    setStatus(STREAM_STATUS.PUBLISHING);
    //play preview
    session.createStream({
        name: streamName,
        display: remoteVideo
        ...
    }).play();
    ...
}).publish();

6. Stop of preview playback.

previewStream.stop() code

function onStarted(publishStream, previewStream) {
    $("#publishBtn").text("Stop").off('click').click(function(){
        $(this).prop('disabled', true);
        previewStream.stop();
    }).prop('disabled', false);
}

7. Receiving the event confirming playback stop

StreamStatusEvent STOPPED code

    session.createStream({
        name: streamName,
        display: remoteVideo
    }).on(STREAM_STATUS.PLAYING, function(previewStream){
        ...
    }).on(STREAM_STATUS.STOPPED, function(){
        publishStream.stop();
    }).on(STREAM_STATUS.FAILED, function(){
        ...
    }).play();

8. Stop of streaming after stop of preview playback.

publishStream.stop() code

    session.createStream({
        name: streamName,
        display: remoteVideo
    }).on(STREAM_STATUS.PLAYING, function(previewStream){
        ...
    }).on(STREAM_STATUS.STOPPED, function(){
        publishStream.stop();
    }).on(STREAM_STATUS.FAILED, function(){
        ...
    }).play();

9. Receiving the event confirming successful streaming stop

StreamStatusEvent UNPUBLISHED code

session.createStream({
    name: streamName,
    display: localVideo,
    cacheLocalResources: true
}).on(STREAM_STATUS.PUBLISHING, function(publishStream){
    ...
}).on(STREAM_STATUS.UNPUBLISHED, function(){
    setStatus(STREAM_STATUS.UNPUBLISHED);
    //enable start button
    onStopped();
}).on(STREAM_STATUS.FAILED, function(){
    ...
}).publish();
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