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HTML5 and JavaScript to load a *.pls file to <audio> tag. Uses error and ended events to move to the next item
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| <! DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>PLS Processor</title> | |
| <!-- needed for IE9 to ensure it treats page as HTML5 properly --> | |
| <meta http-equiv="X-UA-Compatible" content="IE=9" > | |
| </head> | |
| <body> | |
| <p>Audio PLS processor<p> | |
| <audio id="audio" controls="controls"></audio > | |
| <p id="title">item title</p> | |
| <script> | |
| // Make XHR request for the pls file | |
| if (window.XMLHttpRequest) { | |
| // code for IE7 +, Firefox, Chrome, Opera, Safari | |
| xhr = new XMLHttpRequest(); | |
| } else { | |
| // code for IE6, IE5 | |
| xhr = new ActiveXObject("Microsoft.XMLHTTP"); | |
| } | |
| xhr.open("GET", "http://{url}/{file}.pls", false); | |
| xhr.send(); | |
| xhrDoc = xhr.responseText; | |
| var pls = {}; | |
| // split into lines | |
| pls.Entries = xhrDoc.split("\n"); | |
| // Entry 0 is [playlist] | |
| // Entry 1 is NumberOfEntries=n | |
| pls.Count = pls.Entries[1].split("=")[1]; | |
| // Entry 2,3,4 = File#=,Title#=,Length#= | |
| // repeat from 1 to NumberOfEntries | |
| pls.Items = []; | |
| pls.curItem = 0; | |
| pls.listOk = true; | |
| for (var i = 0; i < pls.Count; i ++ ) { | |
| pls.Items.push( { | |
| file: pls.Entries[i + 2].split("=")[1], | |
| title: pls.Entries[i + 3].split("=")[1], | |
| length: pls.Entries[i + 4].split("=")[1] | |
| }); | |
| } | |
| // get the audio element | |
| pls.audio = document.getElementById("audio"); | |
| // hook onEnded and onError events to jump to next PLS item | |
| pls.audio.addEventListener("error", audioEvent, false); | |
| pls.audio.addEventListener("ended", audioEvent, false); | |
| // load audio tag with first source | |
| pls.listOk = loadPLS(pls.curItem ++ ); | |
| function audioEvent(event) { | |
| // if the listOk is still true (ie not at the end of the list) | |
| // step to the next item either on ended or error | |
| if (pls.listOk) { | |
| pls.listOk = loadPLS(pls.curItem ++ ); | |
| } else { | |
| // action to indicate end of stream | |
| } | |
| } | |
| function loadPLS(whichItem) { | |
| if (whichItem >= pls.Count) { | |
| return false; | |
| } else { | |
| pls.audio.autoplay = false; | |
| pls.audio.src = pls.Items[whichItem].file; | |
| var title = document.getElementById("title"); | |
| title.innerText = pls.Items[whichItem].title + "[" + pls.curItem + "/" + pls.Items[whichItem].file + "]"; | |
| return true; | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
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See @Offbeatmammal's Playing a .pls source in the video tag (5 October 2011) for background and documentation about pushing *.pls info.