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Bundle browser script, add package exports, add sourcemaps

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This commit is contained in:
Tomás Fox
2022-03-15 15:27:19 -03:00
parent ab5cfd8582
commit e447a242c7
13 changed files with 1028 additions and 80 deletions
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20
README.md
View File

@@ -1,5 +1,4 @@
ffprobe-wasm
==========
# ffprobe-wasm
Gather information from multimedia streams. Works on the browser and Node.js.
@@ -18,25 +17,30 @@ npm install ffprobe-wasm
Node.js
```ts
import { FFprobeWorker } from 'ffprobe-wasm/node.mjs';
import { FFprobeWorker } from "ffprobe-wasm";
const worker = new FFprobeWorker();
const fileInfo = await worker.getFileInfo('file.mp4');
const fileInfo = await worker.getFileInfo("file.mp4");
console.log(fileInfo);
```
Browser
```ts
import { FFprobeWorker } from 'ffprobe-wasm/browser.mjs';
import { FFprobeWorker } from "ffprobe-wasm";
const worker = new FFprobeWorker();
// input is the reference to a <input type="file" /> element
input.addEventListener('change', (event) => {
const file = event.target.files[0]
// input is the reference to an <input type="file" /> element
input.addEventListener("change", (event) => {
const file = event.target.files[0];
const fileInfo = await worker.getFileInfo(file);
console.log(fileInfo);
});
```
## Notes
- In browser, `SharedArrayBuffer` is being used. To enable this in your server, read [Security requirements](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer#security_requirements).
- In browser, everything is bundled in the `browser.mjs` script. When gzipped, this file is bigger than 1 MiB, so it's recommended to use `import()` to lazy load the asset. The good side of this is that you don't have to configure your bundler to include the worker or wasm files and you won't face [same-origin](https://developer.mozilla.org/en-US/docs/Web/API/Worker/Worker) issues with the worker.

5
build.sh
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@@ -9,14 +9,17 @@ rm -rf ffprobe-wasm-app/dist
# Build wasm
cd ffprobe-wasm-app
# sed -i -e 's/ffprobe-wasm\.js/ffprobe-wasm.mjs/g;s/-o dist\/ffprobe-wasm\.mjs \\/-o dist\/ffprobe-wasm.mjs -s EXPORT_NAME=ffprobe \\/' Makefile
docker-compose run ffprobe-wasm make
cd ..
cp -R ffprobe-wasm-app/dist dist
node scripts/replace.js
cp src/*.d.* dist
# Build browser/node workers
npm run build
# Remove unnecessary files
rm dist/browser-vite.* dist/ffprobe-wasm.d.mts dist/ffprobe-wasm.mjs dist/worker-browser.*
# Copy files for npm publish
cp package.json LICENSE README.md dist

811
package-lock.json generated
View File

@@ -1,16 +1,17 @@
{
"name": "ffprobe-wasm",
"version": "0.1.0",
"version": "0.2.0",
"lockfileVersion": 2,
"requires": true,
"packages": {
"": {
"name": "ffprobe-wasm",
"version": "0.1.0",
"version": "0.2.0",
"license": "MIT",
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"typescript": "^4.5.5"
"typescript": "^4.5.5",
"vite": "^2.8.6"
}
},
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"node": ">= 0.4"
},
"funding": {
"url": "https://github.com/sponsors/ljharb"
}
},
"node_modules/typescript": {
"version": "4.5.5",
"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.5.5.tgz",
@@ -31,6 +526,43 @@
"engines": {
"node": ">=4.2.0"
}
},
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"postcss": "^8.4.6",
"resolve": "^1.22.0",
"rollup": "^2.59.0"
},
"bin": {
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},
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},
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"fsevents": "~2.3.2"
},
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"less": "*",
"sass": "*",
"stylus": "*"
},
"peerDependenciesMeta": {
"less": {
"optional": true
},
"sass": {
"optional": true
},
"stylus": {
"optional": true
}
}
}
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"dependencies": {
@@ -40,11 +572,284 @@
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}
}

17
package.json
View File

@@ -1,6 +1,6 @@
{
"name": "ffprobe-wasm",
"version": "0.1.0",
"version": "0.2.0",
"description": "ffprobe-like for browser and node, powered by WebAssembly",
"repository": {
"type": "git",
@@ -17,11 +17,22 @@
],
"author": "Tomás Fox <tomas.c.fox@gmail.com>",
"license": "MIT",
"exports": {
"node": "./node.mjs",
"types": "./ffprobe-worker.d.ts",
"default": "./browser.mjs"
},
"main": "./node.mjs",
"types": "./ffprobe-worker.d.ts",
"browser": "./browser.mjs",
"scripts": {
"build": "tsc"
"build": "npm run tsc && npm run vite",
"tsc": "tsc",
"vite": "vite build"
},
"devDependencies": {
"@types/node": "^17.0.21",
"typescript": "^4.5.5"
"typescript": "^4.5.5",
"vite": "^2.8.6"
}
}

27
scripts/replace.js Normal file
View File

@@ -0,0 +1,27 @@
const { readFile, writeFile } = require("fs/promises");
const { dirname, resolve } = require("path");
main();
async function main() {
const root = dirname(__dirname);
const wasmJsPath = resolve(root, "dist/ffprobe-wasm.mjs");
let content = await readFile(wasmJsPath, { encoding: "utf8" });
content = `\
import initWasmInstance from "./ffprobe-wasm.wasm";
const initWasm = (info) =>
initWasmInstance(info).then((exports) => ({ instance: { exports } }));
${content}`;
content = content.replace(`import.meta.url`, `''`);
content = content.replace(
`instantiateAsync().catch(readyPromiseReject)`,
`initWasm(info).then(receiveInstantiatedSource, readyPromiseReject)`
);
await writeFile(wasmJsPath, content, { encoding: "utf8" });
}

39
src/browser.mts → src/browser-vite.mts
View File

@@ -1,34 +1,59 @@
import type { Chapter, ChapterTag, FileInfo, Frame, FramesInfo, Stream } from "./ffprobe-wasm.mjs";
import type {
Chapter,
ChapterTag,
FileInfo,
Frame,
FramesInfo,
Stream,
} from "./ffprobe-wasm.mjs";
import type { FFprobeWorker as AbstractFFprobeWorker } from "./ffprobe-worker.js";
import BrowserWorker from "./worker-browser.mjs?worker&inline";
import type {
IncomingMessage,
IncomingData,
OutgoingMessage,
} from "./worker.mjs";
export class FFprobeWorker {
export class FFprobeWorker implements AbstractFFprobeWorker {
readonly #worker: Worker;
constructor() {
this.#worker = new Worker("./worker-browser.mjs");
this.#worker = new BrowserWorker();
}
async getFileInfo(file: File): Promise<FileInfo> {
return this.#postMessage({ type: "getFileInfo", payload: [file.name, { files: [file] }] });
this.#validateFile(file);
return this.#postMessage({
type: "getFileInfo",
payload: [file.name, { files: [file] }],
});
}
async getFrames(file: File, offset: number): Promise<FramesInfo> {
return this.#postMessage({ type: "getFrames", payload: [file.name, { files: [file] }, offset] });
this.#validateFile(file);
return this.#postMessage({
type: "getFrames",
payload: [file.name, { files: [file] }, offset],
});
}
terminate(): void {
this.#worker.terminate();
}
#validateFile(file: File | string): asserts file is File {
if (typeof file === "string") {
throw new Error(
"String only supported in Node.js, you must provide a File"
);
}
}
#postMessage(data: IncomingData): Promise<any> {
const channel = new MessageChannel();
const message: IncomingMessage = {
...data,
port: channel.port2
port: channel.port2,
};
this.#worker.postMessage(message, [channel.port2]);
@@ -41,7 +66,7 @@ export class FFprobeWorker {
} else {
reject(new Error(data.message));
}
}
};
});
}
}

1
src/declarations/vite.d.ts vendored Normal file
View File

@@ -0,0 +1 @@
/// <reference types="vite/client" />

93
src/ffprobe-wasm-shared.d.ts vendored
View File

@@ -70,19 +70,22 @@ export interface AnalyzePathReturn {
}
export interface FileInfo {
bit_rate: number
chapters: Chapter[]
duration: number
flags: number
name: string
nb_chapters: number
nb_streams: number
streams: Stream[]
url: string
bit_rate: number;
chapters: Chapter[];
/**
* Duration in microseconds
*/
duration: number;
flags: number;
name: string;
nb_chapters: number;
nb_streams: number;
streams: Stream[];
url: string;
}
export interface Collection<T> {
count: { value: number }
count: { value: number };
ptr: number;
ptrType: any;
get(index: number): T;
@@ -90,56 +93,56 @@ export interface Collection<T> {
}
export type Raw<T> = {
[K in keyof T]: T[K] extends Array<infer U> ? Collection<Raw<U>> : T[K]
}
[K in keyof T]: T[K] extends Array<infer U> ? Collection<Raw<U>> : T[K];
};
export interface Chapter {
end: number
id: number
start: number
tags: ChapterTag[]
end: number;
id: number;
start: number;
tags: ChapterTag[];
/**
* @example "1/1000"
*/
time_base: string
time_base: string;
}
export interface ChapterTag {
key: string
value: string
key: string;
value: string;
}
export interface Stream {
bit_rate: number
channels: number
codec_name: string
codec_type: number
duration: number
format: string
frame_size: number
height: number
id: number
level: number
profile: string
sample_rate: number
start_time: number
width: number
bit_rate: number;
channels: number;
codec_name: string;
codec_type: number;
duration: number;
format: string;
frame_size: number;
height: number;
id: number;
level: number;
profile: string;
sample_rate: number;
start_time: number;
width: number;
}
export interface FramesInfo {
avg_frame_rate: number
duration: number
frames: Frame[]
gop_size: number
nb_frames: number
time_base: number
avg_frame_rate: number;
duration: number;
frames: Frame[];
gop_size: number;
nb_frames: number;
time_base: number;
}
export interface Frame {
dts: number
frame_number: number
pict_type: number
pkt_size: number
pos: number
pts: number
dts: number;
frame_number: number;
pict_type: number;
pkt_size: number;
pos: number;
pts: number;
}

18
src/ffprobe-worker.d.ts vendored Normal file
View File

@@ -0,0 +1,18 @@
import type {
Chapter,
ChapterTag,
FileInfo,
Frame,
FramesInfo,
Stream,
} from "./ffprobe-wasm-shared";
export declare class FFprobeWorker {
getFileInfo(file: File | string): Promise<FileInfo>;
getFrames(file: File | string, offset: number): Promise<FramesInfo>;
terminate(): void;
}
export { Chapter, ChapterTag, FileInfo, Frame, FramesInfo, Stream };

36
src/node.mts
View File

@@ -1,14 +1,22 @@
import { basename, dirname } from "path";
import { fileURLToPath } from 'url';
import { fileURLToPath } from "url";
import { MessageChannel, Worker } from "worker_threads";
import type { Chapter, ChapterTag, FileInfo, Frame, FramesInfo, Stream } from "./ffprobe-wasm.mjs";
import type {
Chapter,
ChapterTag,
FileInfo,
Frame,
FramesInfo,
Stream,
} from "./ffprobe-wasm.js";
import type { FFprobeWorker as AbstractFFprobeWorker } from "./ffprobe-worker.js";
import type {
IncomingMessage,
IncomingData,
OutgoingMessage,
} from "./worker.mjs";
export class FFprobeWorker {
export class FFprobeWorker implements AbstractFFprobeWorker {
readonly #worker: Worker;
constructor() {
@@ -17,22 +25,38 @@ export class FFprobeWorker {
}
async getFileInfo(filePath: string): Promise<FileInfo> {
return this.#postMessage({ type: "getFileInfo", payload: [basename(filePath), { root: dirname(filePath) }] });
this.#validateFile(filePath);
return this.#postMessage({
type: "getFileInfo",
payload: [basename(filePath), { root: dirname(filePath) }],
});
}
async getFrames(filePath: string, offset: number): Promise<FramesInfo> {
return this.#postMessage({ type: "getFrames", payload: [basename(filePath), { root: dirname(filePath) }, offset] });
this.#validateFile(filePath);
return this.#postMessage({
type: "getFrames",
payload: [basename(filePath), { root: dirname(filePath) }, offset],
});
}
terminate(): void {
this.#worker.terminate();
}
#validateFile(filePath: string | File): asserts filePath is string {
if (typeof filePath === "object") {
throw new Error(
"File object only supported in Browser, you must provide a string (path)"
);
}
}
#postMessage(data: IncomingData): Promise<any> {
const channel = new MessageChannel();
const message: IncomingMessage = {
...data,
port: channel.port2
port: channel.port2,
};
this.#worker.postMessage(message, [channel.port2]);

7
src/worker-browser.mts
View File

@@ -1,11 +1,6 @@
import loadFFprobe from "./ffprobe-wasm.mjs";
import { createListener, IncomingMessage } from "./worker.mjs";
const listener = createListener(
loadFFprobe({
locateFile: (path) => `${location.origin}/node_modules/ffprobe-wasm/${path}`
}),
"WORKERFS",
);
const listener = createListener(loadFFprobe(), "WORKERFS");
self.onmessage = (event: MessageEvent<IncomingMessage>) => listener(event.data);

3
tsconfig.json
View File

@@ -11,7 +11,8 @@
"resolveJsonModule": true,
"isolatedModules": true,
"outDir": "./dist",
"declaration": true
"declaration": true,
"sourceMap": true
},
"include": ["./src"]
}

31
vite.config.ts Normal file
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@@ -0,0 +1,31 @@
import { resolve } from "path";
import { defineConfig } from "vite";
// https://vitejs.dev/config/
export default defineConfig({
build: {
outDir: resolve(__dirname, "dist"),
lib: {
entry: resolve(__dirname, "dist/browser-vite.mjs"),
formats: ["es"],
fileName: () => "browser.mjs",
},
emptyOutDir: false,
minify: false,
sourcemap: true,
},
worker: {
plugins: [
{
name: "append-source-url",
generateBundle(options, bundle) {
Object.entries(bundle).forEach(([file, output]) => {
if (output.type === "chunk") {
output.code += `\n//# sourceURL=${file}`;
}
});
},
},
],
},
});