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Custom SoundCloud Waveform png

<?php
// sc-custom-waveform.php
/**
Generate a custom waveform image for the SoundCloud Custom Player.

This version simply changes the waveform background color.

Example Usage:
http://example.com/sc-custom-waveform.php?r=64&g=0&b=128&a=64&src=http://w1.sndcdn.com/nuSXXYh62P7v_m.png

JavaScript to auto-replace in the player:
<script type="text/javascript">
$(document).bind('onPlayerTrackSwitch.scPlayer', function(event, track){
	$('.sc-player .sc-waveform-container img').each(function(){
		$(this).attr('src', 'http://example.com/sc-custom-waveform.php?r=64&g=0&b=128&a=64&src='+$(this).attr('src'));
	});
});
</script>

Author: plong0 [at] spiralsense.com
Date: Nov. 4, 2012
*/

$src = $_REQUEST['src'];
$r = isset($_REQUEST['r'])?$_REQUEST['r']:0;
$g = isset($_REQUEST['g'])?$_REQUEST['g']:0;
$b = isset($_REQUEST['b'])?$_REQUEST['b']:0;
$a = isset($_REQUEST['a'])?(($_REQUEST['a']/255.0)*127):0; // normalize 0-255 alpha channel to 0-127

$debug = !TRUE;

// load the source image
$img_size = getimagesize($src);
$img = imagecreatefrompng($src);
imagealphablending($img, TRUE);
imagesavealpha($img, TRUE);

// replace the boundary color
if(version_compare(PHP_VERSION, '5.4.0', '>=')){
	imagecolorset($img, 1, $r, $g, $b, $a);
}
else{
	// can't set alpha channel PHP < 5.4.0
	//imagecolorset($img, 1, $r, $g, $b);
	
	// instead, fill the wave boundaries
	$color = imagecolorallocatealpha($img, $r, $g, $b, $a);
	imagefill($img, 0, 0, $color);
	imagefill($img, 0, $img_size[1]-1, $color);	
}

if(!$debug){
	header('Content-Type: image/png');
	imagepng($img);
	imagedestroy($img);
}
?>
https://snipt.net/embed/9d779e524bba59fe731d809dbdd2b871/
/raw/9d779e524bba59fe731d809dbdd2b871/
9d779e524bba59fe731d809dbdd2b871
php
PHP
57
2019-07-22T01:48:58
True
False
False
/api/public/snipt/49641/
custom-soundcloud-waveform-png
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a> <a href="#L-28">28</a> <a href="#L-29">29</a> <a href="#L-30">30</a> <a href="#L-31">31</a> <a href="#L-32">32</a> <a href="#L-33">33</a> <a href="#L-34">34</a> <a href="#L-35">35</a> <a href="#L-36">36</a> <a href="#L-37">37</a> <a href="#L-38">38</a> <a href="#L-39">39</a> <a href="#L-40">40</a> <a href="#L-41">41</a> <a href="#L-42">42</a> <a href="#L-43">43</a> <a href="#L-44">44</a> <a href="#L-45">45</a> <a href="#L-46">46</a> <a href="#L-47">47</a> <a href="#L-48">48</a> <a href="#L-49">49</a> <a href="#L-50">50</a> <a href="#L-51">51</a> <a href="#L-52">52</a> <a href="#L-53">53</a> <a href="#L-54">54</a> <a href="#L-55">55</a> <a href="#L-56">56</a> <a href="#L-57">57</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="cp">&lt;?php</span> </span><span id="L-2"><a name="L-2"></a><span class="c1">// sc-custom-waveform.php</span> </span><span id="L-3"><a name="L-3"></a><span class="sd">/**</span> </span><span id="L-4"><a name="L-4"></a><span class="sd">Generate a custom waveform image for the SoundCloud Custom Player.</span> </span><span id="L-5"><a name="L-5"></a> </span><span id="L-6"><a name="L-6"></a><span class="sd">This version simply changes the waveform background color.</span> </span><span id="L-7"><a name="L-7"></a> </span><span id="L-8"><a name="L-8"></a><span class="sd">Example Usage:</span> </span><span id="L-9"><a name="L-9"></a><span class="sd">http://example.com/sc-custom-waveform.php?r=64&amp;g=0&amp;b=128&amp;a=64&amp;src=http://w1.sndcdn.com/nuSXXYh62P7v_m.png</span> </span><span id="L-10"><a name="L-10"></a> </span><span id="L-11"><a name="L-11"></a><span class="sd">JavaScript to auto-replace in the player:</span> </span><span id="L-12"><a name="L-12"></a><span class="sd">&lt;script type=&quot;text/javascript&quot;&gt;</span> </span><span id="L-13"><a name="L-13"></a><span class="sd">$(document).bind(&#39;onPlayerTrackSwitch.scPlayer&#39;, function(event, track){</span> </span><span id="L-14"><a name="L-14"></a><span class="sd"> $(&#39;.sc-player .sc-waveform-container img&#39;).each(function(){</span> </span><span id="L-15"><a name="L-15"></a><span class="sd"> $(this).attr(&#39;src&#39;, &#39;http://example.com/sc-custom-waveform.php?r=64&amp;g=0&amp;b=128&amp;a=64&amp;src=&#39;+$(this).attr(&#39;src&#39;));</span> </span><span id="L-16"><a name="L-16"></a><span class="sd"> });</span> </span><span id="L-17"><a name="L-17"></a><span class="sd">});</span> </span><span id="L-18"><a name="L-18"></a><span class="sd">&lt;/script&gt;</span> </span><span id="L-19"><a name="L-19"></a> </span><span id="L-20"><a name="L-20"></a><span class="sd">Author: plong0 [at] spiralsense.com</span> </span><span id="L-21"><a name="L-21"></a><span class="sd">Date: Nov. 4, 2012</span> </span><span id="L-22"><a name="L-22"></a><span class="sd">*/</span> </span><span id="L-23"><a name="L-23"></a> </span><span id="L-24"><a name="L-24"></a><span class="nv">$src</span> <span class="o">=</span> <span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;src&#39;</span><span class="p">];</span> </span><span id="L-25"><a name="L-25"></a><span class="nv">$r</span> <span class="o">=</span> <span class="nb">isset</span><span class="p">(</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;r&#39;</span><span class="p">])</span><span class="o">?</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;r&#39;</span><span class="p">]</span><span class="o">:</span><span class="mi">0</span><span class="p">;</span> </span><span id="L-26"><a name="L-26"></a><span class="nv">$g</span> <span class="o">=</span> <span class="nb">isset</span><span class="p">(</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;g&#39;</span><span class="p">])</span><span class="o">?</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;g&#39;</span><span class="p">]</span><span class="o">:</span><span class="mi">0</span><span class="p">;</span> </span><span id="L-27"><a name="L-27"></a><span class="nv">$b</span> <span class="o">=</span> <span class="nb">isset</span><span class="p">(</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;b&#39;</span><span class="p">])</span><span class="o">?</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;b&#39;</span><span class="p">]</span><span class="o">:</span><span class="mi">0</span><span class="p">;</span> </span><span id="L-28"><a name="L-28"></a><span class="nv">$a</span> <span class="o">=</span> <span class="nb">isset</span><span class="p">(</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;a&#39;</span><span class="p">])</span><span class="o">?</span><span class="p">((</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;a&#39;</span><span class="p">]</span><span class="o">/</span><span class="mf">255.0</span><span class="p">)</span><span class="o">*</span><span class="mi">127</span><span class="p">)</span><span class="o">:</span><span class="mi">0</span><span class="p">;</span> <span class="c1">// normalize 0-255 alpha channel to 0-127</span> </span><span id="L-29"><a name="L-29"></a> </span><span id="L-30"><a name="L-30"></a><span class="nv">$debug</span> <span class="o">=</span> <span class="o">!</span><span class="k">TRUE</span><span class="p">;</span> </span><span id="L-31"><a name="L-31"></a> </span><span id="L-32"><a name="L-32"></a><span class="c1">// load the source image</span> </span><span id="L-33"><a name="L-33"></a><span class="nv">$img_size</span> <span class="o">=</span> <span class="nb">getimagesize</span><span class="p">(</span><span class="nv">$src</span><span class="p">);</span> </span><span id="L-34"><a name="L-34"></a><span class="nv">$img</span> <span class="o">=</span> <span class="nb">imagecreatefrompng</span><span class="p">(</span><span class="nv">$src</span><span class="p">);</span> </span><span id="L-35"><a name="L-35"></a><span class="nb">imagealphablending</span><span class="p">(</span><span class="nv">$img</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> </span><span id="L-36"><a name="L-36"></a><span class="nb">imagesavealpha</span><span class="p">(</span><span class="nv">$img</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> </span><span id="L-37"><a name="L-37"></a> </span><span id="L-38"><a name="L-38"></a><span class="c1">// replace the boundary color</span> </span><span id="L-39"><a name="L-39"></a><span class="k">if</span><span class="p">(</span><span class="nb">version_compare</span><span class="p">(</span><span class="k">PHP_VERSION</span><span class="p">,</span> <span class="s1">&#39;5.4.0&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;=&#39;</span><span class="p">)){</span> </span><span id="L-40"><a name="L-40"></a> <span class="nb">imagecolorset</span><span class="p">(</span><span class="nv">$img</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="nv">$r</span><span class="p">,</span> <span class="nv">$g</span><span class="p">,</span> <span class="nv">$b</span><span class="p">,</span> <span class="nv">$a</span><span class="p">);</span> </span><span id="L-41"><a name="L-41"></a><span class="p">}</span> </span><span id="L-42"><a name="L-42"></a><span class="k">else</span><span class="p">{</span> </span><span id="L-43"><a name="L-43"></a> <span class="c1">// can&#39;t set alpha channel PHP &lt; 5.4.0</span> </span><span id="L-44"><a name="L-44"></a> <span class="c1">//imagecolorset($img, 1, $r, $g, $b);</span> </span><span id="L-45"><a name="L-45"></a> </span><span id="L-46"><a name="L-46"></a> <span class="c1">// instead, fill the wave boundaries</span> </span><span id="L-47"><a name="L-47"></a> <span class="nv">$color</span> <span class="o">=</span> <span class="nb">imagecolorallocatealpha</span><span class="p">(</span><span class="nv">$img</span><span class="p">,</span> <span class="nv">$r</span><span class="p">,</span> <span class="nv">$g</span><span class="p">,</span> <span class="nv">$b</span><span class="p">,</span> <span class="nv">$a</span><span class="p">);</span> </span><span id="L-48"><a name="L-48"></a> <span class="nb">imagefill</span><span class="p">(</span><span class="nv">$img</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nv">$color</span><span class="p">);</span> </span><span id="L-49"><a name="L-49"></a> <span class="nb">imagefill</span><span class="p">(</span><span class="nv">$img</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nv">$img_size</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="nv">$color</span><span class="p">);</span> </span><span id="L-50"><a name="L-50"></a><span class="p">}</span> </span><span id="L-51"><a name="L-51"></a> </span><span id="L-52"><a name="L-52"></a><span class="k">if</span><span class="p">(</span><span class="o">!</span><span class="nv">$debug</span><span class="p">){</span> </span><span id="L-53"><a name="L-53"></a> <span class="nb">header</span><span class="p">(</span><span class="s1">&#39;Content-Type: image/png&#39;</span><span class="p">);</span> </span><span id="L-54"><a name="L-54"></a> <span class="nb">imagepng</span><span class="p">(</span><span class="nv">$img</span><span class="p">);</span> </span><span id="L-55"><a name="L-55"></a> <span class="nb">imagedestroy</span><span class="p">(</span><span class="nv">$img</span><span class="p">);</span> </span><span id="L-56"><a name="L-56"></a><span class="p">}</span> </span><span id="L-57"><a name="L-57"></a><span class="cp">?&gt;</span><span class="x"></span> </span></pre></div> </td></tr></table>
"custom player", color, soundcloud, waveform