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Complete except for throttling bug.

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This commit is contained in:
Robin E.R. Davies
2026-02-10 19:59:05 -05:00
parent aec88fa9f1
commit 22b63a32db
42 changed files with 2597 additions and 564 deletions
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vite/src/pipedal/AudioFileMetadata.tsx
+1 -66
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@@ -23,6 +23,7 @@
import { pathConcat, pathParentDirectory, pathFileName } from "./FileUtils";
import { PiPedalModel } from "./PiPedalModel";
import { safeFilenameDecode } from "./SafeFilename";
export class ThumbnailType {
static Unknown = 0;
@@ -38,72 +39,6 @@ function getVersionSuffix(filePath: string): string | null {
return match ? match[1] : null;
}
export function safeFilenameDecode(filename: string): string {
let originalFilename = filename;
let pos = filename.indexOf('%');
if (pos < 0) {
return filename;
}
let result = "";
while (true) {
if (pos < 0) {
result += filename;
return result;
}
result += filename.substring(0, pos);
if (pos+3 >= filename.length) {
// invalid encoding. just use the original
return originalFilename;
}
let hex = filename.charAt(pos+1) + filename.charAt(pos+2);
let byte = parseInt(hex, 16);
// Handle UTF-8 to UTF-16 conversion
if (byte < 0x80) {
// Single-byte character (ASCII)
result += String.fromCharCode(byte);
filename = filename.substring(pos+3);
} else if ((byte & 0xE0) === 0xC0) {
// 2-byte sequence
if (pos+6 > filename.length || filename.charAt(pos+3) !== '%') {
return originalFilename; // invalid encoding
}
let byte2 = parseInt(filename.charAt(pos+4) + filename.charAt(pos+5), 16);
let codePoint = ((byte & 0x1F) << 6) | (byte2 & 0x3F);
result += String.fromCharCode(codePoint);
filename = filename.substring(pos+6);
} else if ((byte & 0xF0) === 0xE0) {
// 3-byte sequence
if (pos+9 > filename.length || filename.charAt(pos+3) !== '%' || filename.charAt(pos+6) !== '%') {
return originalFilename; // invalid encoding
}
let byte2 = parseInt(filename.charAt(pos+4) + filename.charAt(pos+5), 16);
let byte3 = parseInt(filename.charAt(pos+7) + filename.charAt(pos+8), 16);
let codePoint = ((byte & 0x0F) << 12) | ((byte2 & 0x3F) << 6) | (byte3 & 0x3F);
result += String.fromCharCode(codePoint);
filename = filename.substring(pos+9);
} else if ((byte & 0xF8) === 0xF0) {
// 4-byte sequence (surrogate pair needed)
if (pos+12 > filename.length || filename.charAt(pos+3) !== '%' || filename.charAt(pos+6) !== '%' || filename.charAt(pos+9) !== '%') {
return originalFilename; // invalid encoding
}
let byte2 = parseInt(filename.charAt(pos+4) + filename.charAt(pos+5), 16);
let byte3 = parseInt(filename.charAt(pos+7) + filename.charAt(pos+8), 16);
let byte4 = parseInt(filename.charAt(pos+10) + filename.charAt(pos+11), 16);
let codePoint = ((byte & 0x07) << 18) | ((byte2 & 0x3F) << 12) | ((byte3 & 0x3F) << 6) | (byte4 & 0x3F);
// Convert to UTF-16 surrogate pair
codePoint -= 0x10000;
result += String.fromCharCode(0xD800 + (codePoint >> 10));
result += String.fromCharCode(0xDC00 + (codePoint & 0x3FF));
filename = filename.substring(pos+12);
} else {
// Invalid UTF-8 start byte
return originalFilename;
}
pos = filename.indexOf('%');
}
}
export function getTrackTitle(pathname: string, metadata: AudioFileMetadata | null | undefined): string {
if (!metadata) {
return safeFilenameDecode(pathFileName(pathname));