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Add ESLint and lint a bunch

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This commit is contained in:
Vanilagy
2024-12-01 17:33:54 +01:00
parent 3ae891842f
commit 6730e41c07
25 changed files with 3668 additions and 1584 deletions
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src/misc.ts
+39 -23
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@@ -12,17 +12,17 @@ export const last = <T>(arr: T[]) => {
};
export const isU32 = (value: number) => {
return value >= 0 && value < 2**32;
return value >= 0 && value < 2 ** 32;
};
export const readBits = (bytes: Uint8Array, start: number, end: number) => {
let result = 0;
for (let i = start; i < end; i++) {
let byteIndex = Math.floor(i / 8);
let byte = bytes[byteIndex]!;
let bitIndex = 0b111 - (i & 0b111);
let bit = (byte & (1 << bitIndex)) >> bitIndex;
const byteIndex = Math.floor(i / 8);
const byte = bytes[byteIndex]!;
const bitIndex = 0b111 - (i & 0b111);
const bit = (byte & (1 << bitIndex)) >> bitIndex;
result <<= 1;
result |= bit;
@@ -33,9 +33,9 @@ export const readBits = (bytes: Uint8Array, start: number, end: number) => {
export const writeBits = (bytes: Uint8Array, start: number, end: number, value: number) => {
for (let i = start; i < end; i++) {
let byteIndex = Math.floor(i / 8);
const byteIndex = Math.floor(i / 8);
let byte = bytes[byteIndex]!;
let bitIndex = 0b111 - (i & 0b111);
const bitIndex = 0b111 - (i & 0b111);
byte &= ~(1 << bitIndex);
byte |= ((value & (1 << (end - i - 1))) >> (end - i - 1)) << bitIndex;
@@ -56,29 +56,45 @@ export const textEncoder = new TextEncoder();
// These maps are taken from https://www.matroska.org/technical/elements.html,
// which references the tables in ITU-T H.273 - they should be valid for Matroska and ISOBMFF.
export const COLOR_PRIMARIES_MAP: Record<VideoColorPrimaries, number> = {
'bt709': 1, // ITU-R BT.709
'bt470bg': 5, // ITU-R BT.470BG
'smpte170m': 6 // ITU-R BT.601 525 - SMPTE 170M
bt709: 1, // ITU-R BT.709
bt470bg: 5, // ITU-R BT.470BG
smpte170m: 6, // ITU-R BT.601 525 - SMPTE 170M
};
export const TRANSFER_CHARACTERISTICS_MAP: Record<VideoTransferCharacteristics, number> = {
'bt709': 1, // ITU-R BT.709
'smpte170m': 6, // SMPTE 170M
'iec61966-2-1': 13 // IEC 61966-2-1
'bt709': 1, // ITU-R BT.709
'smpte170m': 6, // SMPTE 170M
'iec61966-2-1': 13, // IEC 61966-2-1
};
export const MATRIX_COEFFICIENTS_MAP: Record<VideoMatrixCoefficients, number> = {
'rgb': 0, // Identity
'bt709': 1, // ITU-R BT.709
'bt470bg': 5, // ITU-R BT.470BG
'smpte170m': 6 // SMPTE 170M
rgb: 0, // Identity
bt709: 1, // ITU-R BT.709
bt470bg: 5, // ITU-R BT.470BG
smpte170m: 6, // SMPTE 170M
};
export const colorSpaceIsComplete = (colorSpace: VideoColorSpaceInit | undefined) => {
return !!colorSpace && !!colorSpace.primaries && !!colorSpace.transfer && !!colorSpace.matrix && colorSpace.fullRange !== undefined;
export type RequiredNonNull<T> = {
[K in keyof T]-?: NonNullable<T[K]>;
};
export const colorSpaceIsComplete = (
colorSpace: VideoColorSpaceInit | undefined,
): colorSpace is RequiredNonNull<VideoColorSpaceInit> => {
return (
!!colorSpace
&& !!colorSpace.primaries
&& !!colorSpace.transfer
&& !!colorSpace.matrix
&& colorSpace.fullRange !== undefined
);
};
export const isAllowSharedBufferSource = (x: unknown) => {
// Quite a mouthful:
return x instanceof ArrayBuffer || (typeof SharedArrayBuffer !== 'undefined' && x instanceof SharedArrayBuffer) || (ArrayBuffer.isView(x) && !(x instanceof DataView));
return (
x instanceof ArrayBuffer
|| (typeof SharedArrayBuffer !== 'undefined' && x instanceof SharedArrayBuffer)
|| (ArrayBuffer.isView(x) && !(x instanceof DataView))
);
};
export class AsyncMutex {
@@ -86,15 +102,15 @@ export class AsyncMutex {
async acquire() {
let resolver: () => void;
let nextPromise = new Promise<void>(resolve => {
const nextPromise = new Promise<void>((resolve) => {
resolver = resolve;
});
let currentPromiseAlias = this.currentPromise;
const currentPromiseAlias = this.currentPromise;
this.currentPromise = nextPromise;
await currentPromiseAlias;
return resolver!;
}
}
}