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gzipped base64 tracks

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veclav talica
2023-05-25 11:14:13 +05:00
parent 6792c09295
commit 29aba9c6f8
2 changed files with 36 additions and 9 deletions
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9
cook_tracks.sh Executable file
View File

@@ -0,0 +1,9 @@
#!/usr/bin/bash
set +e
shopt -s extglob
for f in $1/!(*AutoSave*).xm
do
gzip -c $f | base64 --wrap=0 - | tr -d '\n' > $2/$(basename -- $f).txt
done

36
tools/track_listing_generator.py
View File

@@ -17,26 +17,43 @@ page = """<!DOCTYPE html>
<script type="text/javascript"> <script type="text/javascript">
(function (window, document) { (function (window, document) {
if (!window.XMPlayer) if (!window.XMPlayer)
window.XMPlayer = {}; window.XMPlayer = {};
var XMPlayer = window.XMPlayer; var XMPlayer = window.XMPlayer;
var was_init = false
// https://stackoverflow.com/questions/16245767/creating-a-blob-from-a-base64-string-in-javascript
function b64toBlob(base64) {
const decoded = atob(base64);
const uInt8Array = new Uint8Array(decoded.length);
for (let i = 0; i < decoded.length; ++i)
uInt8Array[i] = decoded.charCodeAt(i);
return new Blob([uInt8Array]);
}
async function decompressGzippedBase64(str) {
const ds = new DecompressionStream(`gzip`);
const decompressedStream = b64toBlob(str).stream().pipeThrough(ds);
return new Response(decompressedStream).blob();
}
window.loadAndPlayTrack = function(url) { window.loadAndPlayTrack = function(url) {
if (!was_init) {
XMPlayer.init();
was_init = true;
}
var request = new XMLHttpRequest(); var request = new XMLHttpRequest();
request.responseType = "arraybuffer"; request.responseType = `text`;
request.open('GET', url); request.open('GET', url);
request.send(); request.send();
request.onload = (_) => { request.onload = async(_) => {
if (request.readyState === 4 && request.status === 200) { if (request.readyState === 4 && request.status === 200) {
XMPlayer.stop(); XMPlayer.stop();
XMPlayer.load(request.response); XMPlayer.load(await (await decompressGzippedBase64(request.response)).arrayBuffer());
XMPlayer.play(); XMPlayer.play();
} }
} }
} }
window.onload = function() {
XMPlayer.init();
}
})(window, document) })(window, document)
</script> </script>
</head> </head>
@@ -64,7 +81,8 @@ page = """<!DOCTYPE html>
for _, _, files in walk(argv[1]): for _, _, files in walk(argv[1]):
files.sort() files.sort()
for f in files: for f in files:
if not f.endswith('.xm'): # note: Base64 gzip encoded data is expected.
if not f.endswith('.xm.txt'):
continue continue
page += ( page += (
f""" <div><p style="display: inline;">{f}</p><button style="float: right;" onclick="window.loadAndPlayTrack('/tracks/{f}')">play</button></div>\n""" f""" <div><p style="display: inline;">{f}</p><button style="float: right;" onclick="window.loadAndPlayTrack('/tracks/{f}')">play</button></div>\n"""