Michael Fabian 'Xaymar' Dirks
6e2ac5e513
* Added configurable scenecut. * Removed bframes 0 and 1 from nvenc default config. * Added b_ref_mode configuration option. * Fixed path parallelization. * Attempted libvmaf parallelization.
127 lines
3.5 KiB
JavaScript
127 lines
3.5 KiB
JavaScript
const encoder = require('./encoder.js');
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const path = require('path');
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const fs = require('fs');
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const crypto = require('crypto');
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let version = 1;
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class libx264 extends encoder {
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constructor(ffmpeg, config, settings) {
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super(ffmpeg, config, settings);
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// Cost per option chosen.
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this.cost = {
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preset: { // Measured at 2560x1440x60 with no tune
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"ultrafast": 0.603, // 520 fps / 30 fps, 116 fps / 60 fps
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"superfast": 0.686, // 383 fps / 30 fps, 102 fps / 60 fps
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"veryfast": 0.737, // 378 fps / 30 fps, 95 fps / 60 fps
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"faster": 0.854, // 339 fps / 30 fps, 82 fps / 60 fps
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"fast": 0.972, // 334 fps / 30 fps, 72 fps / 60 fps
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"medium": 1.000, // 368 fps / 30 fps, 70 fps / 60 fps
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"slow": 1.321, // 359 fps / 30 fps, 53 fps / 60 fps
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"slower": 2.414, // 329 fps / 30 fps, 29 fps / 60 fps
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"veryslow": 4.667, // 270 fps / 30 fps, 15 fps / 60 fps
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"placebo": 18.42, // 125 fps / 30 fps, 3.8 fps / 60 fps
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},
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tune: { // Measured at 2560x1440x60 medium
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null: 1.000, // 70 fps / 60 fps
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"film": 1.029, // 68 fps / 60 fps
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"animation": 1.077, // 65 fps / 60 fps
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"grain": 1.061, // 66 fps / 60 fps
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},
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threads: (32.0 / this.settings.threads),
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}
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}
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available() {
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if (global.debug) console.time("Checking...");
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let res = this.ffmpeg.ffmpegSync([
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"-hide_banner", "-v", "error",
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"-f", "lavfi",
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"-i", "color=size=256x256:duration=1:rate=30:color=black",
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"-c:v", "libx264",
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"-f", "null",
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"-"
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]);
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if (global.debug) console.timeEnd("Checking...");
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if (res.status != 0) {
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return false;
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}
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return true;
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}
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load() {
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let name = function(opts) {
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let name = "";
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for (let idx = 0; idx < opts.length; idx += 2) {
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let opt = opts[idx];
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let val = opts[idx + 1];
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if (name.length != 0)
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name += ";";
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name += `${opt.substr(1)}=${val}`;
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}
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return `${name};version=${version}`;
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}
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if (global.debug) console.time("Generating...");
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this.indexes = {};
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this.combinations = [];
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for (let preset of this.settings.presets) {
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for (let tune of this.settings.tunes) {
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for (let scenecut of this.settings.scenecut) {
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let _opts = [
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"-profile:v", "high",
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"-preset", preset,
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"-x264-params", `nal-hrd=cbr:force-cfr=1`,
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"-ssim", "0",
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"-threads", this.settings.threads,
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];
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if (tune) {
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_opts.push("-tune", tune);
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}
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if (scenecut == false) {
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_opts.push("-sc_threshold", 0);
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} else if ((typeof scenecut) == "number") {
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_opts.push("-sc_threshold", scenecut.toFixed(0));
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}
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let _name = name(_opts);
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let _hash = crypto.createHash("sha256").update(_name).digest("hex");
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let _cost = 1.0 * this.settings.cost_scale * this.cost.preset[preset] * this.cost.tune[tune] * this.cost.threads;
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let combo = {
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name: _name,
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hash: _hash,
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options: _opts,
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cost: _cost,
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};
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this.indexes[_hash] = combo.options;
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this.combinations.push(combo);
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}
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}
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}
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fs.writeFileSync(
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path.join(this.config.paths.output, "libx264.json"),
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JSON.stringify(this.indexes, null, '\t'),
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{encoding: "utf8"}
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);
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if (global.debug) console.timeEnd("Generating...");
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if (global.debug) console.log(`Combinations: ${this.count()}`)
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}
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pool() {
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return this.settings.pool;
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}
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get(index, width, height, framerate) {
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let result = Object.assign(new Object(), this.combinations[index]);
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result.cost *= framerate / 60.0;
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result.cost *= (width * height) / (2560 * 1440);
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return result;
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}
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}
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module.exports = libx264;
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