Web SDK 2.0 - EN
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To analyze the code, let's take the version of file stream-snapshot.js with hash ecbadc37fff01f, which is available here and can be downloaded with corresponding build 2.0.212219.

1. Initialization of the API.

Flashphoner.init() code

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Flashphoner.init();

...

Flashphoner.createSession() code

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Flashphoner.createSession({urlServer: url}).on(SESSION_STATUS.ESTABLISHED, function(session){
    ...
}).on(SESSION_STATUS.DISCONNECTED, function(){
    ...
}).on(SESSION_STATUS.FAILED, function(){
    ...
});

3. Receiving the event confirming successful connection

ConnectionStatusEvent SESSION_STATUS.ESTABLISHED code

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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.

sessionSession.createStream(), Stream.publish() code

When stream is created, the following parameters are passed

  • streamName - name of the stream
  • localVideo - <div> element, in which div  element to display video from camera will be displayed
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session.createStream({
    name: streamName,
    display: localVideo,
    cacheLocalResources: true,
    receiveVideo: false,
    receiveAudio: false
    ...
}).publish();

5. Receiving the event confirming successful streaming

StreamStatusEvent STREAM_STATUS.PUBLISHING code

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session.createStream({
    ...
}).on(STREAM_STATUS.PUBLISHING, function(publishStream){
    setStatus(STREAM_STATUS.PUBLISHING);
    onPublishing(publishStream);
}).on(STREAM_STATUS.UNPUBLISHED, function(){
    ...
}).on(STREAM_STATUS.FAILED, function(){
    ...
}).publish();

6. Taking snapshot.

sessionSession.createStream(), Stream.snapshot() code

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session.createStream({name: name}).on(STREAM_STATUS.SNAPSHOT_COMPLETEEVENT, function(streamstreamEvent){
    ...
}).snapshot();

7. Receiving the event confirming successful snapshot taking

StreamStatusEvent STREAM_EVENT_TYPE.SNAPSHOT_COMPLETE code

On receivng the event,  stream.getInfo() method returns streamEvent.payload.snapshot member contains snapshot in base64 encoding. Then stream created to take snapshot is stopped.

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session.createStream({name: name}).on(STREAM_EVENT, function(streamEvent){
    if (STREAM_STATUSEVENT_TYPE.SNAPSHOT_COMPLETE, function(stream){
COMPLETED === streamEvent.type) {
        console.log("Snapshot complete");
        setSnapshotStatus(STREAM_STATUS.SNAPSHOT_COMPLETE);
        snapshotImg.src = "data:image/png;base64,"+stream.getInfo()streamEvent.payload.snapshot;
    //remove} failed callback
    stream.onelse if (STREAM_EVENT_STATUSTYPE.FAILED, function(){});
 SNAPSHOT_FAILED === streamEvent.type) {
   //release stream object
    stream.stop();
}).on(setSnapshotStatus(STREAM_STATUS.FAILED, function(stream){;
        console.log("Snapshot failed, info: " + streamEvent.payload.info);
    }
}).snapshot();

8. Streaming stopStop streaming

streamStream.stop() code

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

9. Receiving the event confirming successful streaming stop

StreamStatusEvent STREAM_STATUS.UNPUBLISHED code

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session.createStream({
    ...
}).on(STREAM_STATUS.PUBLISHING, function(publishStream){
    ...
}).on(STREAM_STATUS.UNPUBLISHED, function(){
    setStatus(STREAM_STATUS.UNPUBLISHED);
    //enable start button
    onUnpublished();
}).on(STREAM_STATUS.FAILED, function(){
    ...
}).publish();