125 lines
3.6 KiB
JavaScript
125 lines
3.6 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", { value: true });
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/** @module FFPROBE **/
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const fs_extra_1 = require("fs-extra");
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const path_1 = require("path");
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const exec_1 = require("exec");
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//const spawn = require('spawn');
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//const exit = require('exit');
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class FFPROBE {
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constructor(sys) {
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this.system = sys;
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}
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/**
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* Get info on a video in json format. Use for filmout.
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*
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* @param {string} video Path to video
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*
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* @returns {object} Video info in an object
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**/
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async info(video) {
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const cmd = `ffprobe -v quiet -print_format json -show_format -show_streams "${video}"`;
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let fileExists;
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let raw;
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let json;
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let vid; //whether video has stream with video data
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try {
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fileExists = await fs_extra_1.exists(video);
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}
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catch (err) {
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return exit(err, 5);
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}
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if (!fileExists) {
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//return exit(`File ${video} does not exist`, 6);
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console.error(new Error(`File ${video} does not exist`));
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return false;
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}
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try {
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console.log(cmd);
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raw = await exec_1.exec(cmd);
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}
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catch (err) {
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//return exit(err, 7);
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console.error(err);
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return false;
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}
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try {
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json = JSON.parse(raw.stdout);
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}
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catch (err) {
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return raw.stdout;
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}
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if (json && json.streams) {
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vid = json.streams.find((stream) => {
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if (stream.width && stream.height)
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return stream;
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});
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}
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if (vid) {
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json.width = vid.width;
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json.height = vid.height;
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}
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return json;
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}
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/**
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* Count the number of frames in the video using one of two methods.
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* The first uses -select_streams and is very fast. The second uses
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* -count_frames and is VERY slow.
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*
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* @param {string} video Path to video
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*
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* @returns {integer} Number of frames in video
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**/
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async frames(video) {
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const ext = path_1.extname(video.toLowerCase());
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let cmd = `ffprobe -v error -select_streams v:0 -show_entries stream=nb_frames -of default=nokey=1:noprint_wrappers=1 "${video}"`;
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let backup_cmd = `ffprobe -v error -count_frames -select_streams v:0 -show_entries stream=nb_read_frames -of default=nokey=1:noprint_wrappers=1 "${video}"`;
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let gif_cmd = `identify -format "%n\n" "${video}" | head -1`;
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let fileExists;
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let raw;
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let frames;
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try {
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fileExists = await fs_extra_1.exists(video);
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}
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catch (err) {
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//return exit(err, 5);
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console.error(err);
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return false;
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}
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if (!fileExists) {
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//return exit(`File ${video} does not exist`, 6);
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console.error(new Error(`File ${video} does not exist`));
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return false;
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}
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if (ext === '.mkv') {
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cmd = backup_cmd;
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}
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else if (ext === '.gif') {
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cmd = gif_cmd;
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}
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try {
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console.log(cmd);
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raw = await exec_1.exec(cmd);
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}
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catch (err) {
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console.error(err);
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return false;
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}
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try {
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frames = parseInt(raw.stdout);
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}
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catch (err) {
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return raw.stdout;
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}
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return frames;
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}
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}
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/*
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function map (obj : any) {
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console.dir(obj);
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}
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*/
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module.exports = (sys) => {
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return new FFPROBE(sys);
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};
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//# sourceMappingURL=index.js.map
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