@calipsa/video-utils/dist/imagesToVideoBuffer/convert.js

Video utilities

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const fs_1 = __importDefault(require("fs"));
const fluent_ffmpeg_1 = __importDefault(require("fluent-ffmpeg"));
const tmp_promise_1 = __importDefault(require("tmp-promise"));
const inputToBuffer_1 = __importDefault(require("./inputToBuffer"));
const buffersToStream_1 = __importDefault(require("./buffersToStream"));
exports.default = async (images, fps) => {
    const imageBufferPromises = images.map(inputToBuffer_1.default);
    const imageBuffers = await Promise.all(imageBufferPromises);
    const imagesStream = (0, buffersToStream_1.default)(imageBuffers);
    const { path, cleanup } = await tmp_promise_1.default.file();
    try {
        await new Promise((resolve, reject) => {
            const proc = (0, fluent_ffmpeg_1.default)(imagesStream)
                .withInputFps(fps)
                .output(path, { end: true })
                .withFpsOutput(fps)
                .noAudio()
                .format('mp4') // -f
                .videoCodec('libx264') // -vcodec
                .size('640x480')
                .outputOption('-pix_fmt', 'yuv420p')
                .outputOption('-tune', 'zerolatency')
                .outputOption('-preset', 'ultrafast')
                .outputOption('-movflags', 'faststart')
                // .outputOption('-q:v', '2')
                .on('error', reject)
                // .on('start', commandLine => {
                //   console.log(`Spawned Ffmpeg with command: ${commandLine}`)
                // })
                .on('end', () => {
                resolve();
            });
            proc.run();
        });
        return fs_1.default.promises.readFile(path, null);
    }
    finally {
        cleanup();
    }
};
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