How is the Wami Recorder actually implemented?

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I\'m very new to the Wami Recorder, and I\'ve never worked with Flash at all, so this may actually be a dumb question.

Basically, how does one go about implementing

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执笔经年

2020-12-31 18:05

Yeah, the documentation is not very clear. I spent all afternoon yesterday figuring it out. Here's a simple implementation that works on my local machine. The following files are stored under my Apache document root in "/temp/wami/test", so the URL is "http://localhost/temp/wami/test/":

index.html
recorder.js
save_file.php
Wami.swf

index.html

    <!-- index.html -->
    <html>
    <head>
        <script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
        <script src="https://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js"></script></script>
        <script src="recorder.js"></script>
    </head>

    <body>
        <div id="recorder">
            <button id="record">Record</button>
            <button id="play">Play</button>
        </div>
        <div id="flash"></div>
    </body>

    <script>
        // initialize Wami
        Wami.setup({
            id: 'flash' // where to put the flash object
        });

        // initialize some global vars
        var recording = '';
        var recordingUrl = '';
        var playBackUrl = '';

        // get button elements
        var record = $('#record');
        var play = $('#play');

        // define functions
        function startRecording() {
            recording = 'temp.wav';
            recordingUrl = 'http://localhost/temp/wami/test/save_file.php?filename=' + recording;
            Wami.startRecording(recordingUrl);
            // update button attributes
            record
                .html('Stop')
                .unbind()
                .click(function() {
                    stopRecording();
                });
        }

        function stopRecording() {
            Wami.stopRecording();
            // get the recording for playback
            playBackUrl = 'http://localhost/temp/wami/test/' + recording;
            // update button attributes
            record
                .html('Record')
                .unbind()
                .click(function() {
                    startRecording();
                });
        }

        function startPlaying() {
            Wami.startPlaying(playBackUrl);
            // update button attributes
            play
                .html('Stop')
                .unbind()
                .click(function() {
                    stopPlaying();
                });
        }

        function stopPlaying() {
            Wami.stopPlaying();
            // update button attributes
            play
                .html('Play')
                .unbind()
                .click(function() {
                    startPlaying();
                });
        }

        // add initial click functions
        record.click(function() {
            startRecording();
        });

        play.click(function() {
            startPlaying();
        });
    </script>

    </html>

save_file.php

    <?php
    /* save_file.php */

    // get the filename
    parse_str($_SERVER['QUERY_STRING'], $params);
    $file = isset($params['filename']) ? $params['filename'] : 'temp.wav';
    // save the recorded audio to that file
    $content = file_get_contents('php://input');
    $fh = fopen($file, 'w') or die("can't open file");
    fwrite($fh, $content);
    fclose($fh);

That should do it. Unfortunately, there doesn't appear to be a way to pause and then resume recording. Each time you start recording it overwrites the previous audio. There also doesn't appear to be a way to retrieve information about the audio file (e.g. length, size). See the Wami recorder file (recorder.js) for a full list of recorder functions.

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