mirror of https://github.com/mifi/lossless-cut
Many improvements
- Add config option for asking about file open #467 - Implement text/youtube segments import #458 - Implement CUE sheet import #458 - Implement XMEML import (Final Cut Pro / Davinci Resolve) - Allow import embedded chapters as segments #300pull/471/head
Mikael Finstad
6 years ago
parent
6546f080d2
commit
81eb66faa2
@ -0,0 +1,96 @@
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import fastXmlParser from 'fast-xml-parser';
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import i18n from 'i18next';
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import csvParse from 'csv-parse';
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import pify from 'pify';
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import sortBy from 'lodash/sortBy';
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const csvParseAsync = pify(csvParse);
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export async function parseCsv(str) {
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const rows = await csvParseAsync(str, {});
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if (rows.length === 0) throw new Error(i18n.t('No rows found'));
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if (!rows.every(row => row.length === 3)) throw new Error(i18n.t('One or more rows does not have 3 columns'));
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const mapped = rows
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.map(([start, end, name]) => ({
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start: start === '' ? undefined : parseFloat(start, 10),
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end: end === '' ? undefined : parseFloat(end, 10),
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name,
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}));
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if (!mapped.every(({ start, end }) => (
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(start === undefined || !Number.isNaN(start))
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&& (end === undefined || !Number.isNaN(end))
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))) {
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console.log(mapped);
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throw new Error(i18n.t('Invalid start or end value. Must contain a number of seconds'));
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}
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return mapped;
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}
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export function parseCuesheet(cuesheet) {
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// There are 75 such frames per second of audio.
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// https://en.wikipedia.org/wiki/Cue_sheet_(computing)
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const fps = 75;
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const { tracks } = cuesheet.files[0];
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function parseTime(track) {
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const index = track.indexes[0];
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if (!index) return undefined;
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const { time } = index;
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if (!time) return undefined;
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return (time.min * 60) + time.sec + time.frame / fps;
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}
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return tracks.map((track, i) => {
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const nextTrack = tracks[i + 1];
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const end = nextTrack && parseTime(nextTrack);
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return { name: track.title, start: parseTime(track), end };
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});
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}
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// https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/FinalCutPro_XML/VersionsoftheInterchangeFormat/VersionsoftheInterchangeFormat.html
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export function parseXmeml(xmlStr) {
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const xml = fastXmlParser.parse(xmlStr);
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// TODO maybe support media.audio also?
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return xml.xmeml.project.children.sequence.media.video.track.clipitem.map((item) => ({ start: item.start / item.rate.timebase, end: item.end / item.rate.timebase }));
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}
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export function parseYouTube(str) {
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const regex = /(?:([0-9]{2,}):)?([0-9]{2}):([0-9]{2})(?:\.([0-9]{3}))?[^\S\n]+([^\n]*)\n/g;
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const lines = [];
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function parseLine(match) {
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if (!match) return undefined;
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const [, hourStr, minStr, secStr, msStr, name] = match;
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const hour = hourStr != null ? parseInt(hourStr, 10) : 0;
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const min = parseInt(minStr, 10);
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const sec = parseInt(secStr, 10);
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const ms = msStr != null ? parseInt(msStr, 10) : 0;
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const time = (((hour * 60) + min) * 60 + sec) + ms / 1000;
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return { time, name };
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}
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let m;
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// eslint-disable-next-line no-cond-assign
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while ((m = regex.exec(`${str}\n`))) {
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lines.push(parseLine(m));
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}
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const linesSorted = sortBy(lines, (l) => l.time);
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const edl = linesSorted.map((line, i) => {
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const nextLine = linesSorted[i + 1];
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return { start: line.time, end: nextLine && nextLine.time, name: line.name };
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});
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return edl.filter((ed) => ed.start !== ed.end);
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}
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@ -0,0 +1,44 @@
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/* eslint-disable no-undef */
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import { parseYouTube } from './edlFormats';
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it('parseYoutube', () => {
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const str = `
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Jump to chapters:
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00:00 Test 1
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00:01 Test 2
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00:02 00:57 double
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00:01:01 Test 3
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01:01:01.012 Test 4
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00:01:01.012 Test 5
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01:01.012 Test 6
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:01:02.012 Test 7
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00:57:01.0123 Invalid 2
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00:57:01. Invalid 3
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01:15: Invalid 4
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0132 Invalid 5
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00:03
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00:04
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00:05
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`;
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const edl = parseYouTube(str);
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expect(edl).toEqual([
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{ start: 0, end: 1, name: 'Test 1' },
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{ start: 1, end: 2, name: 'Test 2' },
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{ start: 2, end: 4, name: '00:57 double' },
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{ start: 4, end: 5, name: '' },
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{ start: 5, end: 61, name: '' },
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{ start: 61, end: 61.012, name: 'Test 3' },
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{ start: 61.012, end: 62.012, name: 'Test 6' },
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{ start: 62.012, end: 3661.012, name: 'Test 7' },
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{ start: 3661.012, end: undefined, name: 'Test 4' },
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]);
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});
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it('parseYouTube eol', () => {
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const str = ' 00:00 Test 1\n00:01 Test 2';
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const edl = parseYouTube(str);
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expect(edl).toEqual([
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{ start: 0, end: 1, name: 'Test 1' },
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{ start: 1, end: undefined, name: 'Test 2' },
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]);
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});
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@ -1,48 +1,28 @@
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import parse from 'csv-parse';
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import stringify from 'csv-stringify';
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import i18n from 'i18next';
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import fastXmlParser from 'fast-xml-parser';
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import csvStringify from 'csv-stringify';
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import pify from 'pify';
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const fs = window.require('fs-extra');
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const { promisify } = window.require('util');
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const stringifyAsync = promisify(stringify);
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const parseAsync = promisify(parse);
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export async function load(path) {
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const str = await fs.readFile(path, 'utf-8');
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const rows = await parseAsync(str, {});
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if (rows.length === 0) throw new Error(i18n.t('No rows found'));
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if (!rows.every(row => row.length === 3)) throw new Error(i18n.t('One or more rows does not have 3 columns'));
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import { parseCuesheet, parseXmeml, parseCsv } from './edlFormats';
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const mapped = rows
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.map(([start, end, name]) => ({
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start: start === '' ? undefined : parseFloat(start, 10),
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end: end === '' ? undefined : parseFloat(end, 10),
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name,
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}));
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const fs = window.require('fs-extra');
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const cueParser = window.require('cue-parser');
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if (!mapped.every(({ start, end }) => (
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(start === undefined || !Number.isNaN(start))
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&& (end === undefined || !Number.isNaN(end))
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))) {
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console.log(mapped);
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throw new Error(i18n.t('Invalid start or end value. Must contain a number of seconds'));
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}
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const csvStringifyAsync = pify(csvStringify);
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return mapped;
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export async function loadCsv(path) {
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return parseCsv(await fs.readFile(path, 'utf-8'));
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}
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// https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/FinalCutPro_XML/VersionsoftheInterchangeFormat/VersionsoftheInterchangeFormat.html
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export async function loadXmeml(path) {
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const xml = fastXmlParser.parse(await fs.readFile(path, 'utf-8'));
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// TODO maybe support media.audio also?
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return xml.xmeml.project.children.sequence.media.video.track.clipitem.map((item) => ({ start: item.start / item.rate.timebase, end: item.end / item.rate.timebase }));
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return parseXmeml(await fs.readFile(path, 'utf-8'));
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}
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export async function loadCue(path) {
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return parseCuesheet(cueParser.parse(path));
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}
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export async function save(path, cutSegments) {
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export async function saveCsv(path, cutSegments) {
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console.log('Saving', path);
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const rows = cutSegments.map(({ start, end, name }) => [start, end, name]);
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const str = await stringifyAsync(rows);
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const str = await csvStringifyAsync(rows);
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await fs.writeFile(path, str);
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}
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