├── .npmignore ├── demo ├── src │ ├── H264NALDecoder.worker.js │ ├── ShaderCompiler.js │ ├── ShaderProgram.js │ ├── ShaderSources.js │ ├── Texture.js │ ├── index.js │ └── YUVSurfaceShader.js ├── dist │ ├── h264samples │ │ ├── 0 │ │ ├── 1 │ │ ├── 2 │ │ ├── 3 │ │ ├── 4 │ │ ├── 5 │ │ ├── 6 │ │ ├── 7 │ │ ├── 8 │ │ ├── 9 │ │ ├── 10 │ │ ├── 11 │ │ ├── 12 │ │ ├── 13 │ │ ├── 14 │ │ ├── 15 │ │ ├── 16 │ │ ├── 17 │ │ ├── 18 │ │ ├── 19 │ │ ├── 20 │ │ ├── 21 │ │ ├── 22 │ │ ├── 23 │ │ ├── 24 │ │ ├── 25 │ │ ├── 26 │ │ ├── 27 │ │ ├── 28 │ │ ├── 29 │ │ ├── 30 │ │ ├── 31 │ │ ├── 32 │ │ ├── 33 │ │ ├── 34 │ │ ├── 35 │ │ ├── 36 │ │ ├── 37 │ │ ├── 38 │ │ ├── 39 │ │ ├── 40 │ │ ├── 41 │ │ ├── 42 │ │ ├── 43 │ │ ├── 44 │ │ ├── 45 │ │ ├── 46 │ │ ├── 47 │ │ ├── 48 │ │ ├── 49 │ │ ├── 50 │ │ ├── 51 │ │ ├── 52 │ │ ├── 53 │ │ ├── 54 │ │ ├── 55 │ │ ├── 56 │ │ ├── 57 │ │ ├── 58 │ │ ├── 59 │ │ └── 60 │ └── index.html ├── README.md ├── package.json └── webpack.config.js ├── .prettierrc.js ├── src ├── index.ts ├── H264Worker.ts └── H264Decoder.ts ├── README.md ├── native ├── decoder.h └── decoder.c ├── tsconfig.json ├── package.json ├── .eslintrc.js ├── .gitignore ├── LICENSE └── yarn.lock /.npmignore: -------------------------------------------------------------------------------- 1 | dist/decoder.bc 2 | dist/include 3 | dist/lib 4 | dist/share -------------------------------------------------------------------------------- /demo/src/H264NALDecoder.worker.js: -------------------------------------------------------------------------------- 1 | import { init } from '../../dist/' 2 | 3 | init() 4 | -------------------------------------------------------------------------------- /demo/dist/h264samples/0: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/udevbe/ffmpeg-h264-wasm/HEAD/demo/dist/h264samples/0 -------------------------------------------------------------------------------- /demo/dist/h264samples/1: 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-------------------------------------------------------------------------------- /.prettierrc.js: -------------------------------------------------------------------------------- 1 | module.exports = { 2 | semi: false, 3 | trailingComma: 'all', 4 | singleQuote: true, 5 | printWidth: 120, 6 | } 7 | -------------------------------------------------------------------------------- /src/index.ts: -------------------------------------------------------------------------------- 1 | export { init } from './H264Worker' 2 | export type FfmpegH264Frame = { 3 | ptr: number 4 | yPlane: Uint8Array 5 | uPlane: Uint8Array 6 | vPlane: Uint8Array 7 | stride: number 8 | } 9 | -------------------------------------------------------------------------------- /demo/dist/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | ffmpeg-h264-wasm demo 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Moved to [https://github.com/udevbe/greenfield](https://github.com/udevbe/greenfield) monorepo 2 | 3 | Port of ffmpeg's h264 decoder, all other functionality is removed. After decoding you get I420 planes back, see demo for a full working example. 4 | 5 | - `yarn install` 6 | - `yarn build-wasm` 7 | - `yarn build` 8 | -------------------------------------------------------------------------------- /demo/README.md: -------------------------------------------------------------------------------- 1 | Make sure to build the ffmpeg-h264-wasm library first, next: 2 | 3 | - `yarn install` 4 | - `yarn build` 5 | - `yarn start` 6 | 7 | Server runs on `http://localhost:8080/dist`. Only the first frame of the test video is displayed as the decoder expects 8 | individual access units (frames) on each decode operation. 9 | -------------------------------------------------------------------------------- /demo/package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "demo", 3 | "version": "1.0.0", 4 | "description": "", 5 | "main": "index.js", 6 | "scripts": { 7 | "build": "webpack --stats-children", 8 | "start": "webpack serve" 9 | }, 10 | "keywords": [], 11 | "author": "", 12 | "license": "ISC", 13 | "dependencies": {}, 14 | "devDependencies": { 15 | "file-loader": "^6.2.0", 16 | "webpack": "^5.75.0", 17 | "webpack-cli": "^5.0.1", 18 | "webpack-dev-server": "^4.11.1", 19 | "worker-loader": "^3.0.8" 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /native/decoder.h: -------------------------------------------------------------------------------- 1 | #ifndef FFMPEG_H264_WASM_DECODER_H 2 | #define FFMPEG_H264_WASM_DECODER_H 3 | 4 | #include "libavcodec/avcodec.h" 5 | 6 | AVCodecContext * 7 | create_codec_context(); 8 | 9 | void 10 | destroy_codec_context(AVCodecContext *ctx); 11 | 12 | void 13 | close_frame(AVFrame *frame); 14 | 15 | AVFrame * 16 | decode(AVCodecContext *ctx, 17 | uint8_t *data_in, 18 | int data_in_size, 19 | uint8_t **y_plane_out, 20 | uint8_t **u_plane_out, 21 | uint8_t **v_plane_out, 22 | int *width_out, 23 | int *height_out, 24 | int *stride_out 25 | ); 26 | 27 | #endif //FFMPEG_H264_WASM_DECODER_H 28 | -------------------------------------------------------------------------------- /demo/webpack.config.js: -------------------------------------------------------------------------------- 1 | const path = require('path') 2 | 3 | module.exports = { 4 | entry: './src/index.js', 5 | output: { 6 | filename: 'main.js', 7 | path: path.resolve(__dirname, 'dist'), 8 | }, 9 | mode: "development", 10 | devtool: 'eval-cheap-module-source-map', 11 | module: { 12 | rules: [ 13 | { 14 | test: /\.worker\.js$/, 15 | use: {loader: 'worker-loader'} 16 | }, 17 | ] 18 | }, 19 | devServer: { 20 | static: "./dist", 21 | headers: { 22 | "Cross-Origin-Embedder-Policy": "require-corp", 23 | "Cross-Origin-Opener-Policy": "same-origin" 24 | }, 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /tsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "compilerOptions": { 3 | "moduleResolution": "node", 4 | "target": "ES2017", 5 | "module": "ES2020", 6 | "lib": [ 7 | "es2015", 8 | "es2016", 9 | "es2017", 10 | "es2019", 11 | "esnext", 12 | "WebWorker" 13 | ], 14 | "allowJs": true, 15 | "rootDir": "src", 16 | "strict": true, 17 | "inlineSourceMap": true, 18 | "inlineSources": true, 19 | "declaration": true, 20 | "allowSyntheticDefaultImports": true, 21 | "experimentalDecorators": true, 22 | "emitDecoratorMetadata": true, 23 | "declarationDir": "types", 24 | "outDir": "dist" 25 | }, 26 | "include": [ 27 | "src" 28 | ], 29 | "exclude": [ 30 | "node_modules", 31 | ".eslintrc.js", 32 | ".prettierrc.js", 33 | "jest.config.js", 34 | "**/*.spec.ts" 35 | ] 36 | } 37 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "ffmpegh264", 3 | "version": "1.0.0-alpha.1", 4 | "description": "FFMPEG web assembly h264 decoder", 5 | "main": "dist/index.js", 6 | "typings": "types/index.d.ts", 7 | "files": [ 8 | "dist", 9 | "types" 10 | ], 11 | "scripts": { 12 | "build-wasm": "bash build_wasm.sh", 13 | "build": "tsc" 14 | }, 15 | "dependencies": {}, 16 | "devDependencies": { 17 | "@typescript-eslint/eslint-plugin": "^5.47.1", 18 | "@typescript-eslint/parser": "^5.47.1", 19 | "eslint": "8.31.0", 20 | "eslint-config-prettier": "^8.5.0", 21 | "eslint-plugin-prettier": "^4.2.1", 22 | "prettier": "^2.8.1", 23 | "typescript": "^4.9.4" 24 | }, 25 | "author": "Erik De Rijcke", 26 | "homepage": "https://github.com/udevbe/tinyh264", 27 | "license": "Apache-2.0", 28 | "repository": "https://github.com/udevbe/tinyh264" 29 | } 30 | -------------------------------------------------------------------------------- /.eslintrc.js: -------------------------------------------------------------------------------- 1 | module.exports = { 2 | parser: '@typescript-eslint/parser', // Specifies the ESLint parser 3 | parserOptions: { 4 | ecmaVersion: 2020, // Allows for the parsing of modern ECMAScript features 5 | sourceType: 'module', // Allows for the use of imports 6 | ecmaFeatures: { 7 | jsx: false, 8 | }, 9 | }, 10 | extends: [ 11 | 'plugin:@typescript-eslint/recommended', // Uses the recommended rules from @typescript-eslint/eslint-plugin, 12 | 'plugin:prettier/recommended', // Enables eslint-plugin-prettier and eslint-config-prettier. This will display prettier errors as ESLint errors. Make sure this is always the last configuration in the extends array. 13 | ], 14 | rules: { 15 | // Place to specify ESLint rules. Can be used to overwrite rules specified from the extended configs 16 | '@typescript-eslint/ban-ts-comment': 'warn', 17 | }, 18 | ignorePatterns: ['libpixman.js', 'libxkbcommon.js'], 19 | } 20 | -------------------------------------------------------------------------------- /demo/src/ShaderCompiler.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Represents a WebGL shader object and provides a mechanism to load shaders from HTML 3 | * script tags. 4 | */ 5 | 6 | export default class ShaderCompiler { 7 | /** 8 | * @param {WebGLRenderingContext}gl 9 | * @param {{type: string, source: string}}script 10 | * @return {WebGLShader} 11 | */ 12 | static compile (gl, script) { 13 | let shader 14 | // Now figure out what type of shader script we have, based on its MIME type. 15 | if (script.type === 'x-shader/x-fragment') { 16 | shader = gl.createShader(gl.FRAGMENT_SHADER) 17 | } else if (script.type === 'x-shader/x-vertex') { 18 | shader = gl.createShader(gl.VERTEX_SHADER) 19 | } else { 20 | throw new Error('Unknown shader type: ' + script.type) 21 | } 22 | 23 | // Send the source to the shader object. 24 | gl.shaderSource(shader, script.source) 25 | 26 | // Compile the shader program. 27 | gl.compileShader(shader) 28 | 29 | // See if it compiled successfully. 30 | if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) { 31 | throw new Error('An error occurred compiling the shaders: ' + gl.getShaderInfoLog(shader)) 32 | } 33 | 34 | return shader 35 | } 36 | } 37 | -------------------------------------------------------------------------------- /demo/src/ShaderProgram.js: -------------------------------------------------------------------------------- 1 | export default class ShaderProgram { 2 | /** 3 | * @param {WebGLRenderingContext}gl 4 | */ 5 | constructor (gl) { 6 | this.gl = gl 7 | this.program = this.gl.createProgram() 8 | } 9 | 10 | /** 11 | * @param {WebGLShader}shader 12 | */ 13 | attach (shader) { 14 | this.gl.attachShader(this.program, shader) 15 | } 16 | 17 | link () { 18 | this.gl.linkProgram(this.program) 19 | // If creating the shader program failed, alert. 20 | if (!this.gl.getProgramParameter(this.program, this.gl.LINK_STATUS)) { 21 | console.error('Unable to initialize the shader program.') 22 | } 23 | } 24 | 25 | use () { 26 | this.gl.useProgram(this.program) 27 | } 28 | 29 | /** 30 | * @param {string}name 31 | * @return {number} 32 | */ 33 | getAttributeLocation (name) { 34 | return this.gl.getAttribLocation(this.program, name) 35 | } 36 | 37 | /** 38 | * @param {string}name 39 | * @return {WebGLUniformLocation | null} 40 | */ 41 | getUniformLocation (name) { 42 | return this.gl.getUniformLocation(this.program, name) 43 | } 44 | 45 | /** 46 | * @param {WebGLUniformLocation}uniformLocation 47 | * @param {Array}array 48 | */ 49 | setUniformM4 (uniformLocation, array) { 50 | this.gl.uniformMatrix4fv(uniformLocation, false, array) 51 | } 52 | } 53 | -------------------------------------------------------------------------------- /demo/src/ShaderSources.js: -------------------------------------------------------------------------------- 1 | /** 2 | * @type {{type: string, source: string}} 3 | */ 4 | export const vertexQuad = { 5 | type: 'x-shader/x-vertex', 6 | source: ` 7 | precision mediump float; 8 | 9 | uniform mat4 u_projection; 10 | attribute vec2 a_position; 11 | attribute vec2 a_texCoord; 12 | varying vec2 v_texCoord; 13 | void main(){ 14 | v_texCoord = a_texCoord; 15 | gl_Position = u_projection * vec4(a_position, 0.0, 1.0); 16 | } 17 | ` 18 | } 19 | 20 | /** 21 | * @type {{type: string, source: string}} 22 | */ 23 | export const fragmentYUV = { 24 | type: 'x-shader/x-fragment', 25 | source: ` 26 | precision lowp float; 27 | 28 | varying vec2 v_texCoord; 29 | 30 | uniform sampler2D yTexture; 31 | uniform sampler2D uTexture; 32 | uniform sampler2D vTexture; 33 | 34 | const mat4 conversion = mat4( 35 | 1.0, 0.0, 1.402, -0.701, 36 | 1.0, -0.344, -0.714, 0.529, 37 | 1.0, 1.772, 0.0, -0.886, 38 | 0.0, 0.0, 0.0, 0.0 39 | ); 40 | 41 | void main(void) { 42 | float yChannel = texture2D(yTexture, v_texCoord).x; 43 | float uChannel = texture2D(uTexture, v_texCoord).x; 44 | float vChannel = texture2D(vTexture, v_texCoord).x; 45 | vec4 channels = vec4(yChannel, uChannel, vChannel, 1.0); 46 | vec3 rgb = (channels * conversion).xyz; 47 | gl_FragColor = vec4(rgb, 1.0); 48 | } 49 | ` 50 | } 51 | -------------------------------------------------------------------------------- /native/decoder.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include "decoder.h" 3 | #include "libavcodec/avcodec.h" 4 | #include "libavutil/imgutils.h" 5 | 6 | AVCodecContext * 7 | create_codec_context() { 8 | const AVCodec *codec = avcodec_find_decoder(AV_CODEC_ID_H264); 9 | AVCodecContext *ctx = avcodec_alloc_context3(codec); 10 | if (avcodec_open2(ctx, codec, NULL) < 0) { 11 | avcodec_free_context(&ctx); 12 | return 0; 13 | } 14 | 15 | return ctx; 16 | } 17 | 18 | void 19 | destroy_codec_context(AVCodecContext *ctx) { 20 | avcodec_free_context(&ctx); 21 | } 22 | 23 | void 24 | close_frame(AVFrame *frame) { 25 | av_frame_unref(frame); 26 | av_frame_free(&frame); 27 | } 28 | 29 | AVFrame * 30 | decode(AVCodecContext *ctx, 31 | uint8_t *data_in, 32 | int data_in_size, 33 | uint8_t **y_plane_out, 34 | uint8_t **u_plane_out, 35 | uint8_t **v_plane_out, 36 | int *width_out, 37 | int *height_out, 38 | int *stride_out 39 | ) { 40 | AVFrame *frame = av_frame_alloc(); 41 | AVPacket avpkt; 42 | int ret; 43 | 44 | avpkt.data = data_in; 45 | avpkt.size = data_in_size; 46 | 47 | ret = avcodec_send_packet(ctx, &avpkt); 48 | if (ret != 0) { 49 | // TODO handle error codes? 50 | return NULL; 51 | } 52 | 53 | ret = avcodec_receive_frame(ctx, frame); 54 | if (ret != 0) { 55 | // TODO handle error codes? 56 | return NULL; 57 | } 58 | 59 | *y_plane_out = frame->data[0]; 60 | *u_plane_out = frame->data[1]; 61 | *v_plane_out = frame->data[2]; 62 | *stride_out = frame->linesize[0]; 63 | *width_out = frame->width; 64 | *height_out = frame->height; 65 | 66 | return frame; 67 | } 68 | -------------------------------------------------------------------------------- /src/H264Worker.ts: -------------------------------------------------------------------------------- 1 | import { H264Decoder } from './H264Decoder' 2 | import LibavH264 from './libav-h264' 3 | 4 | export type libavh264 = { 5 | readonly HEAPU8: Uint8Array 6 | _malloc(bytes: number): number 7 | _free(ptr: number): void 8 | _decode( 9 | codecContext: number, 10 | dataIn: number, 11 | dataInSize: number, 12 | yPlaneOut: number, 13 | uPlaneOut: number, 14 | vPlaneOut: number, 15 | widthOut: number, 16 | heightOut: number, 17 | strideOut: number, 18 | ): number 19 | getValue(address: number, addressType: string): number 20 | _create_codec_context(): number 21 | _destroy_codec_context(_codecContext: number): void 22 | _close_frame(framePtr: number): void 23 | } 24 | 25 | const h264Decoders: Record = {} 26 | 27 | export function init() { 28 | return LibavH264().then((LibavH264: libavh264) => { 29 | self.addEventListener( 30 | 'message', 31 | (e) => { 32 | // @ts-ignore 33 | const message = e.data 34 | const renderStateId = message.renderStateId 35 | const messageType = message.type 36 | switch (messageType) { 37 | case 'decode': { 38 | let decoder = h264Decoders[renderStateId] 39 | if (!decoder) { 40 | decoder = new H264Decoder(LibavH264, (output, width, height) => { 41 | postMessage( 42 | { 43 | type: 'pictureReady', 44 | width, 45 | height, 46 | renderStateId, 47 | data: output, 48 | }, 49 | [output.yPlane.buffer, output.uPlane.buffer, output.vPlane.buffer], 50 | ) 51 | }) 52 | h264Decoders[renderStateId] = decoder 53 | } 54 | decoder.decode(new Uint8Array(message.data, message.offset, message.length)) 55 | break 56 | } 57 | case 'release': { 58 | const decoder = h264Decoders[renderStateId] 59 | if (decoder) { 60 | decoder.release() 61 | delete h264Decoders[renderStateId] 62 | } 63 | break 64 | } 65 | case 'closeFrame': { 66 | const decoder = h264Decoders[renderStateId] 67 | if (decoder) { 68 | decoder.closeFrame(message.data as number) 69 | } 70 | break 71 | } 72 | } 73 | }, 74 | { passive: true }, 75 | ) 76 | 77 | self.postMessage({ type: 'decoderReady' }) 78 | }) 79 | } 80 | -------------------------------------------------------------------------------- /demo/src/Texture.js: -------------------------------------------------------------------------------- 1 | // Copyright 2019 Erik De Rijcke 2 | // 3 | // This file is part of Greenfield. 4 | // 5 | // Greenfield is free software: you can redistribute it and/or modify 6 | // it under the terms of the GNU Affero General Public License as published by 7 | // the Free Software Foundation, either version 3 of the License, or 8 | // (at your option) any later version. 9 | // 10 | // Greenfield is distributed in the hope that it will be useful, 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | // GNU Affero General Public License for more details. 14 | // 15 | // You should have received a copy of the GNU Affero General Public License 16 | // along with Greenfield. If not, see . 17 | 18 | /** 19 | * Represents a WebGL texture object. 20 | */ 21 | export default class Texture { 22 | /** 23 | * @param {!WebGLRenderingContext}gl 24 | * @param {!number}format 25 | * @return {!Texture} 26 | */ 27 | static create (gl, format) { 28 | const texture = gl.createTexture() 29 | gl.bindTexture(gl.TEXTURE_2D, texture) 30 | gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST) 31 | gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST) 32 | gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE) 33 | gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE) 34 | gl.bindTexture(gl.TEXTURE_2D, null) 35 | return new Texture(gl, format, texture) 36 | } 37 | 38 | /** 39 | * Use Texture.create(..) instead. 40 | * @param {WebGLRenderingContext}gl 41 | * @param {number}format 42 | * @param {WebGLTexture}texture 43 | * @private 44 | */ 45 | constructor (gl, format, texture) { 46 | /** 47 | * @type {WebGLRenderingContext} 48 | */ 49 | this.gl = gl 50 | /** 51 | * @type {WebGLTexture} 52 | */ 53 | this.texture = texture 54 | /** 55 | * @type {number} 56 | */ 57 | this.format = format 58 | } 59 | 60 | /** 61 | * @param {!Uint8Array|HTMLVideoElement}buffer 62 | * @param {!Rect}geo 63 | * @param {number}stride 64 | */ 65 | subImage2dBuffer (buffer, x, y, width, height) { 66 | const gl = this.gl 67 | gl.bindTexture(gl.TEXTURE_2D, this.texture) 68 | gl.texSubImage2D(gl.TEXTURE_2D, 0, x, y, width, height, this.format, gl.UNSIGNED_BYTE, buffer) 69 | gl.bindTexture(gl.TEXTURE_2D, null) 70 | } 71 | 72 | /** 73 | * @param {!Uint8Array|HTMLVideoElement}buffer 74 | * @param {number}width 75 | * @param {number}height 76 | */ 77 | image2dBuffer (buffer, width, height) { 78 | const gl = this.gl 79 | gl.bindTexture(gl.TEXTURE_2D, this.texture) 80 | gl.texImage2D(gl.TEXTURE_2D, 0, this.format, width, height, 0, this.format, gl.UNSIGNED_BYTE, buffer) 81 | gl.bindTexture(gl.TEXTURE_2D, null) 82 | } 83 | 84 | delete () { 85 | this.gl.deleteTexture(this.texture) 86 | this.texture = null 87 | } 88 | } 89 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Created by .ignore support plugin (hsz.mobi) 2 | ### JetBrains template 3 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm 4 | # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 5 | 6 | # User-specific stuff 7 | .idea/**/workspace.xml 8 | .idea/**/tasks.xml 9 | .idea/**/usage.statistics.xml 10 | .idea/**/dictionaries 11 | .idea/**/shelf 12 | 13 | # Generated files 14 | .idea/**/contentModel.xml 15 | 16 | # Sensitive or high-churn files 17 | .idea/**/dataSources/ 18 | .idea/**/dataSources.ids 19 | .idea/**/dataSources.local.xml 20 | .idea/**/sqlDataSources.xml 21 | .idea/**/dynamic.xml 22 | .idea/**/uiDesigner.xml 23 | .idea/**/dbnavigator.xml 24 | 25 | # Gradle 26 | .idea/**/gradle.xml 27 | .idea/**/libraries 28 | 29 | # Gradle and Maven with auto-import 30 | # When using Gradle or Maven with auto-import, you should exclude module files, 31 | # since they will be recreated, and may cause churn. Uncomment if using 32 | # auto-import. 33 | # .idea/artifacts 34 | # .idea/compiler.xml 35 | # .idea/modules.xml 36 | # .idea/*.iml 37 | # .idea/modules 38 | # *.iml 39 | # *.ipr 40 | 41 | # CMake 42 | cmake-build-*/ 43 | 44 | # Mongo Explorer plugin 45 | .idea/**/mongoSettings.xml 46 | 47 | # File-based project format 48 | *.iws 49 | 50 | # IntelliJ 51 | out/ 52 | 53 | # mpeltonen/sbt-idea plugin 54 | .idea_modules/ 55 | 56 | # JIRA plugin 57 | atlassian-ide-plugin.xml 58 | 59 | # Cursive Clojure plugin 60 | .idea/replstate.xml 61 | 62 | # Crashlytics plugin (for Android Studio and IntelliJ) 63 | com_crashlytics_export_strings.xml 64 | crashlytics.properties 65 | crashlytics-build.properties 66 | fabric.properties 67 | 68 | # Editor-based Rest Client 69 | .idea/httpRequests 70 | 71 | # Android studio 3.1+ serialized cache file 72 | .idea/caches/build_file_checksums.ser 73 | 74 | ### Autotools template 75 | # http://www.gnu.org/software/automake 76 | 77 | Makefile.in 78 | /ar-lib 79 | /mdate-sh 80 | /py-compile 81 | /test-driver 82 | /ylwrap 83 | 84 | # http://www.gnu.org/software/autoconf 85 | 86 | autom4te.cache 87 | /autoscan.log 88 | /autoscan-*.log 89 | /aclocal.m4 90 | /compile 91 | /config.guess 92 | /config.h.in 93 | /config.log 94 | /config.status 95 | /config.sub 96 | /configure 97 | /configure.scan 98 | /depcomp 99 | /install-sh 100 | /missing 101 | /stamp-h1 102 | 103 | # https://www.gnu.org/software/libtool/ 104 | 105 | /ltmain.sh 106 | 107 | # http://www.gnu.org/software/texinfo 108 | 109 | /texinfo.tex 110 | 111 | # http://www.gnu.org/software/m4/ 112 | 113 | m4/libtool.m4 114 | m4/ltoptions.m4 115 | m4/ltsugar.m4 116 | m4/ltversion.m4 117 | m4/lt~obsolete.m4 118 | 119 | # Generated Makefile 120 | # (meta build system like autotools, 121 | # can automatically generate from config.status script 122 | # (which is called by configure script)) 123 | Makefile 124 | 125 | .idea/ 126 | 127 | /dist/ 128 | /emsdk/ 129 | /libav/ 130 | /src/libav-h264.js 131 | /libav-h264.wasm 132 | /libav-h264.worker.js 133 | /libav/config.fate 134 | /libav/config.mak 135 | /emsdk/ 136 | /libav/ 137 | /demo/node_modules/ 138 | /libav/config.fate 139 | /libav/config.mak 140 | /ffmpeg/ 141 | /ffbuild/ 142 | /types/ 143 | /node_modules/ 144 | /demo/dist/main.js 145 | /demo/dist/main.worker.js 146 | -------------------------------------------------------------------------------- /demo/src/index.js: -------------------------------------------------------------------------------- 1 | import Worker from './H264NALDecoder.worker' 2 | import YUVSurfaceShader from './YUVSurfaceShader' 3 | import Texture from './Texture' 4 | 5 | let H264Worker = null 6 | let videoStreamId = 1 7 | 8 | let canvas = null 9 | /** 10 | * @type {YUVSurfaceShader} 11 | */ 12 | let yuvSurfaceShader = null 13 | let yTexture = null 14 | let uTexture = null 15 | let vTexture = null 16 | 17 | /** 18 | * @type {Array} 19 | */ 20 | const h264samples = [] 21 | 22 | let nroFrames = 0 23 | let start = 0 24 | 25 | /** 26 | * @param {Uint8Array} h264Nal 27 | */ 28 | function decode(h264Nal) { 29 | H264Worker.postMessage( 30 | { 31 | type: 'decode', 32 | data: h264Nal.buffer, 33 | offset: h264Nal.byteOffset, 34 | length: h264Nal.byteLength, 35 | renderStateId: videoStreamId, 36 | }, 37 | [h264Nal.buffer], 38 | ) 39 | } 40 | 41 | function onPictureReady(message) { 42 | const { width, height, data } = message 43 | onPicture(data, width, height) 44 | } 45 | 46 | function onPicture(data, width, height) { 47 | decodeNext() 48 | const { ptr: framePtr, yPlane, uPlane, vPlane, stride } = data 49 | 50 | canvas.width = width 51 | canvas.height = height 52 | 53 | const sourceWidth = width 54 | const sourceHeight = height 55 | const maxXTexCoord = sourceWidth / stride 56 | const maxYTexCoord = sourceHeight / height 57 | 58 | const chromaHeight = height >> 1 59 | 60 | // we upload the entire image, including stride padding & filler rows. The actual visible image will be mapped 61 | // from texture coordinates as to crop out stride padding & filler rows using maxXTexCoord and maxYTexCoord. 62 | 63 | yTexture.image2dBuffer(yPlane, stride, height) 64 | uTexture.image2dBuffer(uPlane, stride / 2, chromaHeight) 65 | vTexture.image2dBuffer(vPlane, stride / 2, chromaHeight) 66 | closeFrame(framePtr) 67 | 68 | yuvSurfaceShader.setTexture(yTexture, uTexture, vTexture) 69 | yuvSurfaceShader.updateShaderData({ w: width, h: height }, { maxXTexCoord, maxYTexCoord }) 70 | yuvSurfaceShader.draw() 71 | } 72 | 73 | function closeFrame(framePtr) { 74 | H264Worker.postMessage({ type: 'closeFrame', renderStateId: videoStreamId, data: framePtr }) 75 | } 76 | 77 | function release() { 78 | if (H264Worker) { 79 | H264Worker.postMessage({ type: 'release', renderStateId: videoStreamId }) 80 | H264Worker = null 81 | } 82 | } 83 | 84 | function decodeNext() { 85 | const nextFrame = h264samples.shift() 86 | if (nextFrame != null) { 87 | decode(nextFrame) 88 | } else { 89 | const fps = (1000 / (Date.now() - start)) * nroFrames 90 | window.alert(`Decoded ${nroFrames} (3440x1216) frames in ${Date.now() - start}ms @ ${fps >> 0}FPS`) 91 | } 92 | } 93 | 94 | function initWebGLCanvas() { 95 | canvas = document.createElement('canvas') 96 | const gl = canvas.getContext('webgl') 97 | yuvSurfaceShader = YUVSurfaceShader.create(gl) 98 | yTexture = Texture.create(gl, gl.LUMINANCE) 99 | uTexture = Texture.create(gl, gl.LUMINANCE) 100 | vTexture = Texture.create(gl, gl.LUMINANCE) 101 | 102 | document.body.append(canvas) 103 | } 104 | 105 | function main() { 106 | initWebGLCanvas() 107 | new Promise((resolve) => { 108 | /** 109 | * @type {Worker} 110 | * @private 111 | */ 112 | H264Worker = new Worker() 113 | H264Worker.addEventListener('message', (e) => { 114 | const message = e.data 115 | switch (message.type) { 116 | case 'pictureReady': 117 | onPictureReady(message) 118 | break 119 | case 'decoderReady': 120 | resolve(H264Worker) 121 | break 122 | } 123 | }) 124 | }) 125 | .then(() => { 126 | const fetches = [] 127 | for (let i = 0; i < 60; i++) { 128 | fetches.push( 129 | fetch(`h264samples/${i}`).then((response) => { 130 | return response.arrayBuffer().then(function (buffer) { 131 | h264samples[i] = new Uint8Array(buffer) 132 | }) 133 | }), 134 | ) 135 | } 136 | 137 | return Promise.all(fetches) 138 | }) 139 | .then(() => { 140 | nroFrames = h264samples.length 141 | start = Date.now() 142 | decodeNext() 143 | }) 144 | } 145 | 146 | main() 147 | -------------------------------------------------------------------------------- /demo/src/YUVSurfaceShader.js: -------------------------------------------------------------------------------- 1 | import ShaderProgram from './ShaderProgram' 2 | import ShaderCompiler from './ShaderCompiler' 3 | import { fragmentYUV, vertexQuad } from './ShaderSources' 4 | 5 | export default class YUVSurfaceShader { 6 | /** 7 | * 8 | * @param {WebGLRenderingContext} gl 9 | * @returns {YUVSurfaceShader} 10 | */ 11 | static create (gl) { 12 | const program = this._initShaders(gl) 13 | const shaderArgs = this._initShaderArgs(gl, program) 14 | const vertexBuffer = this._initBuffers(gl) 15 | 16 | return new YUVSurfaceShader(gl, vertexBuffer, shaderArgs, program) 17 | } 18 | 19 | static _initShaders (gl) { 20 | const program = new ShaderProgram(gl) 21 | program.attach(ShaderCompiler.compile(gl, vertexQuad)) 22 | program.attach(ShaderCompiler.compile(gl, fragmentYUV)) 23 | program.link() 24 | program.use() 25 | 26 | return program 27 | } 28 | 29 | static _initShaderArgs (gl, program) { 30 | // find shader arguments 31 | const shaderArgs = {} 32 | shaderArgs.yTexture = program.getUniformLocation('yTexture') 33 | shaderArgs.uTexture = program.getUniformLocation('uTexture') 34 | shaderArgs.vTexture = program.getUniformLocation('vTexture') 35 | 36 | shaderArgs.u_projection = program.getUniformLocation('u_projection') 37 | 38 | shaderArgs.a_position = program.getAttributeLocation('a_position') 39 | gl.enableVertexAttribArray(shaderArgs.a_position) 40 | shaderArgs.a_texCoord = program.getAttributeLocation('a_texCoord') 41 | gl.enableVertexAttribArray(shaderArgs.a_texCoord) 42 | 43 | return shaderArgs 44 | } 45 | 46 | static _initBuffers (gl) { 47 | // Create vertex buffer object. 48 | return gl.createBuffer() 49 | } 50 | 51 | constructor (gl, vertexBuffer, shaderArgs, program) { 52 | this.gl = gl 53 | this.vertexBuffer = vertexBuffer 54 | this.shaderArgs = shaderArgs 55 | this.program = program 56 | } 57 | 58 | /** 59 | * 60 | * @param {Texture} textureY 61 | * @param {Texture} textureU 62 | * @param {Texture} textureV 63 | */ 64 | setTexture (textureY, textureU, textureV) { 65 | const gl = this.gl 66 | 67 | gl.uniform1i(this.shaderArgs.yTexture, 0) 68 | gl.uniform1i(this.shaderArgs.uTexture, 1) 69 | gl.uniform1i(this.shaderArgs.vTexture, 2) 70 | 71 | gl.activeTexture(gl.TEXTURE0) 72 | gl.bindTexture(gl.TEXTURE_2D, textureY.texture) 73 | 74 | gl.activeTexture(gl.TEXTURE1) 75 | gl.bindTexture(gl.TEXTURE_2D, textureU.texture) 76 | 77 | gl.activeTexture(gl.TEXTURE2) 78 | gl.bindTexture(gl.TEXTURE_2D, textureV.texture) 79 | } 80 | 81 | use () { 82 | this.program.use() 83 | } 84 | 85 | release () { 86 | const gl = this.gl 87 | gl.useProgram(null) 88 | } 89 | 90 | /** 91 | * @param {{w:number, h:number}}encodedFrameSize 92 | * @param {{maxXTexCoord:number, maxYTexCoord:number}} h264RenderState 93 | */ 94 | updateShaderData (encodedFrameSize, h264RenderState) { 95 | const { w, h } = encodedFrameSize 96 | this.gl.viewport(0, 0, w, h) 97 | this.program.setUniformM4(this.shaderArgs.u_projection, [ 98 | 2.0 / w, 0, 0, 0, 99 | 0, 2.0 / -h, 0, 0, 100 | 0, 0, 1, 0, 101 | -1, 1, 0, 1 102 | ]) 103 | this.gl.bindBuffer(this.gl.ARRAY_BUFFER, this.vertexBuffer) 104 | this.gl.bufferData(this.gl.ARRAY_BUFFER, new Float32Array([ 105 | // First triangle 106 | // top left: 107 | 0, 0, 0, 0, 108 | // top right: 109 | w, 0, h264RenderState.maxXTexCoord, 0, 110 | // bottom right: 111 | w, h, h264RenderState.maxXTexCoord, h264RenderState.maxYTexCoord, 112 | 113 | // Second triangle 114 | // bottom right: 115 | w, h, h264RenderState.maxXTexCoord, h264RenderState.maxYTexCoord, 116 | // bottom left: 117 | 0, h, 0, h264RenderState.maxYTexCoord, 118 | // top left: 119 | 0, 0, 0, 0 120 | ]), this.gl.DYNAMIC_DRAW) 121 | this.gl.vertexAttribPointer(this.shaderArgs.a_position, 2, this.gl.FLOAT, false, 16, 0) 122 | this.gl.vertexAttribPointer(this.shaderArgs.a_texCoord, 2, this.gl.FLOAT, false, 16, 8) 123 | } 124 | 125 | draw () { 126 | const gl = this.gl 127 | gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT) 128 | gl.drawArrays(this.gl.TRIANGLE_STRIP, 0, 6) 129 | gl.bindTexture(gl.TEXTURE_2D, null) 130 | } 131 | } 132 | -------------------------------------------------------------------------------- /src/H264Decoder.ts: -------------------------------------------------------------------------------- 1 | // 2 | // Copyright (c) 2013 Sam Leitch. All rights reserved. 3 | // 4 | // Permission is hereby granted, free of charge, to any person obtaining a copy 5 | // of this software and associated documentation files (the "Software"), to 6 | // deal in the Software without restriction, including without limitation the 7 | // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 8 | // sell copies of the Software, and to permit persons to whom the Software is 9 | // furnished to do so, subject to the following conditions: 10 | // 11 | // The above copyright notice and this permission notice shall be included in 12 | // all copies or substantial portions of the Software. 13 | // 14 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 20 | // IN THE SOFTWARE. 21 | // 22 | 23 | import { libavh264 } from './H264Worker' 24 | import { FfmpegH264Frame } from './index' 25 | 26 | export class H264Decoder { 27 | private readonly codecContext: number 28 | private readonly dataIn: number 29 | 30 | private readonly yPlaneOut: number 31 | private readonly strideOut: number 32 | 33 | private readonly uPlaneOut: number 34 | 35 | private readonly vPlaneOut: number 36 | 37 | private readonly widthOut: number 38 | private readonly heightOut: number 39 | 40 | constructor( 41 | private readonly libavH264Module: libavh264, 42 | private readonly onPictureReady: (output: FfmpegH264Frame, width: number, height: number) => void, 43 | ) { 44 | this.codecContext = this.libavH264Module._create_codec_context() 45 | this.dataIn = this.libavH264Module._malloc(1024 * 1024) 46 | 47 | this.yPlaneOut = this.libavH264Module._malloc(4) 48 | this.uPlaneOut = this.libavH264Module._malloc(4) 49 | this.vPlaneOut = this.libavH264Module._malloc(4) 50 | 51 | this.widthOut = this.libavH264Module._malloc(4) 52 | this.heightOut = this.libavH264Module._malloc(4) 53 | this.strideOut = this.libavH264Module._malloc(4) 54 | } 55 | 56 | release() { 57 | this.libavH264Module._destroy_codec_context(this.codecContext) 58 | this.libavH264Module._free(this.dataIn) 59 | this.libavH264Module._free(this.yPlaneOut) 60 | 61 | this.libavH264Module._free(this.widthOut) 62 | this.libavH264Module._free(this.heightOut) 63 | } 64 | 65 | decode(nal: Uint8Array) { 66 | this.libavH264Module.HEAPU8.set(nal, this.dataIn) 67 | const ptr = this.libavH264Module._decode( 68 | this.codecContext, 69 | this.dataIn, 70 | nal.byteLength, 71 | 72 | this.yPlaneOut, 73 | this.uPlaneOut, 74 | this.vPlaneOut, 75 | 76 | this.widthOut, 77 | this.heightOut, 78 | this.strideOut, 79 | ) 80 | 81 | const yPlanePtr = this.libavH264Module.getValue(this.yPlaneOut, 'i8*') 82 | const uPlanePtr = this.libavH264Module.getValue(this.uPlaneOut, 'i8*') 83 | const vPlanePtr = this.libavH264Module.getValue(this.vPlaneOut, 'i8*') 84 | 85 | const width = this.libavH264Module.getValue(this.widthOut, 'i32') 86 | const height = this.libavH264Module.getValue(this.heightOut, 'i32') 87 | const stride = this.libavH264Module.getValue(this.strideOut, 'i32') 88 | 89 | // We assume I420 output else this will fail miserably 90 | // TODO we should probably handle other formats as well 91 | const lumaSize = height * stride 92 | const chromaSize = (height * stride) / 2 93 | 94 | if (yPlanePtr === 0) { 95 | return 96 | } 97 | 98 | const yPlane = new Uint8Array(this.libavH264Module.HEAPU8.subarray(yPlanePtr, yPlanePtr + lumaSize)) 99 | const uPlane = new Uint8Array(this.libavH264Module.HEAPU8.subarray(uPlanePtr, uPlanePtr + chromaSize)) 100 | const vPlane = new Uint8Array(this.libavH264Module.HEAPU8.subarray(vPlanePtr, vPlanePtr + chromaSize)) 101 | 102 | this.onPictureReady( 103 | { 104 | ptr, 105 | yPlane, 106 | uPlane, 107 | vPlane, 108 | stride, 109 | }, 110 | width, 111 | height, 112 | ) 113 | } 114 | 115 | closeFrame(framePtr: number) { 116 | this.libavH264Module._close_frame(framePtr) 117 | } 118 | } 119 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /yarn.lock: -------------------------------------------------------------------------------- 1 | # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY. 2 | # yarn lockfile v1 3 | 4 | 5 | "@eslint/eslintrc@^1.4.1": 6 | version "1.4.1" 7 | resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-1.4.1.tgz#af58772019a2d271b7e2d4c23ff4ddcba3ccfb3e" 8 | integrity sha512-XXrH9Uarn0stsyldqDYq8r++mROmWRI1xKMXa640Bb//SY1+ECYX6VzT6Lcx5frD0V30XieqJ0oX9I2Xj5aoMA== 9 | dependencies: 10 | ajv "^6.12.4" 11 | debug "^4.3.2" 12 | espree "^9.4.0" 13 | globals "^13.19.0" 14 | ignore "^5.2.0" 15 | import-fresh "^3.2.1" 16 | js-yaml "^4.1.0" 17 | minimatch "^3.1.2" 18 | strip-json-comments "^3.1.1" 19 | 20 | "@humanwhocodes/config-array@^0.11.8": 21 | version "0.11.8" 22 | resolved "https://registry.yarnpkg.com/@humanwhocodes/config-array/-/config-array-0.11.8.tgz#03595ac2075a4dc0f191cc2131de14fbd7d410b9" 23 | integrity sha512-UybHIJzJnR5Qc/MsD9Kr+RpO2h+/P1GhOwdiLPXK5TWk5sgTdu88bTD9UP+CKbPPh5Rni1u0GjAdYQLemG8g+g== 24 | dependencies: 25 | "@humanwhocodes/object-schema" "^1.2.1" 26 | debug "^4.1.1" 27 | minimatch 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