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Merge pull request #7 from Mtillmann/shutter-edl
Shutter edl
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| import { secondsToTimestamp, timestampToSeconds } from "../util.js"; | ||
| import { FormatBase } from "./FormatBase.js"; | ||
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| export class ShutterEDL extends FormatBase { | ||
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| // this format is based on the shutter encoder edl format | ||
| // https://github.com/paulpacifico/shutter-encoder/blob/f3d6bb6dfcd629861a0b0a50113bf4b062e1ba17/src/application/SceneDetection.java | ||
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| detect(inputString) { | ||
| return /^TITLE:\s.*\r?\n/.test(inputString.trim()); | ||
| } | ||
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| decodeTime(timeString) { | ||
| return timeString.replace(/:(\d+)$/,'.$10'); | ||
| } | ||
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| encodeTime(time) { | ||
| // since this format apparently expects the end time of the next item and the previous start time | ||
| // to be the same, | ||
| // I'll round them to look like they looked in my sample file when converting | ||
| // from shutter edl to shutter edl... | ||
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| const string = secondsToTimestamp(time, {milliseconds: true}); | ||
| const ms = String(Math.ceil(parseInt(string.split('.').pop()) * 0.1)); | ||
| return string.replace(/\.(\d+)$/,`:${ms.padStart(2, '0')}`); | ||
| } | ||
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| parse(input) { | ||
| if (!this.detect(input)) { | ||
| throw new Error('input must start with TITLE:') | ||
| } | ||
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| const titleMatch = input.match(/^TITLE:\s(.*)\r?\n/); | ||
| this.meta.title = titleMatch?.[1] ?? 'Chapters'; | ||
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| this.chapters = Array.from(input.matchAll(/(?<index>\d{6})\s+(?<title>[^\s]+)\s+\w+\s+\w+\s+(?<startTime>\d\d:\d\d:\d\d:\d\d)\s+(?<endTime>\d\d:\d\d:\d\d:\d\d)/g)) | ||
| .reduce((acc, match) => { | ||
| const startTime = timestampToSeconds(this.decodeTime(match.groups.startTime)); | ||
| const endTime = timestampToSeconds(this.decodeTime(match.groups.endTime)); | ||
| const title = match.groups.title; | ||
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| if (acc.at(-1)?.startTime === startTime) { | ||
| return acc; | ||
| } | ||
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| console.log(startTime, endTime, title); | ||
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| acc.push({ | ||
| startTime, | ||
| endTime, | ||
| title | ||
| }); | ||
| return acc; | ||
| }, []); | ||
| } | ||
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| toString() { | ||
| // this format is weird, it expects 3 tracks per chapter, i suspect it's | ||
| // V = video, A, A2 = stereo audio | ||
| const tracks = ['V', 'A', 'A2']; | ||
| const output = this.chapters.reduce((acc, chapter,i) => { | ||
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| const index = i * 3 + 1; | ||
| const startTime = this.encodeTime(chapter.startTime); | ||
| const endTime = this.encodeTime(chapter.endTime); | ||
| for(let j = 0; j < 3; j++){ | ||
| acc.push(`${(j + index).toString().padStart(6, '0')} ${chapter.title} ${tracks[j]}${" ".repeat(6 - tracks[j].length)}C ${startTime} ${endTime} ${startTime} ${endTime}`); | ||
| } | ||
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| return acc; | ||
| }, []); | ||
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| output.unshift('TITLE: ' + this.meta.title); | ||
| return output.join("\n"); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
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| import { readFileSync } from "fs"; | ||
| import { sep } from "path"; | ||
| import { ShutterEDL } from "../src/Formats/ShutterEDL.js"; | ||
| import { Youtube } from "../src/Formats/Youtube.js"; | ||
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| describe('ShutterEDL Format Handler', () => { | ||
| it('accepts no arguments', () => { | ||
| expect(() => { | ||
| new ShutterEDL(); | ||
| }).not.toThrowError(TypeError); | ||
| }); | ||
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| it('fails on malformed input', () => { | ||
| expect(() => { | ||
| new ShutterEDL('asdf'); | ||
| }).toThrowError(Error); | ||
| }); | ||
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| const content = readFileSync(module.path + sep + 'samples' + sep + 'shutter.edl', 'utf-8'); | ||
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| it('parses well-formed input', () => { | ||
| expect(() => { | ||
| new ShutterEDL(content); | ||
| }).not.toThrow(Error); | ||
| }); | ||
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| const instance = new ShutterEDL(content); | ||
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| it('has the correct number of chapters from content', () => { | ||
| expect(instance.chapters.length).toEqual(5); | ||
| }); | ||
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| it('has parsed the timestamps correctly', () => { | ||
| expect(instance.chapters[0].startTime).toBe(0) | ||
| }); | ||
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| it('has parsed the chapter titles correctly', () => { | ||
| expect(instance.chapters[1].title).toBe('BigBuckBunny_320x180_cut.mp4') | ||
| }); | ||
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| it('exports to correct format', () => { | ||
| expect(instance.toString().slice(0, 6)).toEqual('TITLE:'); | ||
| }); | ||
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| it('export includes correct timestamp', () => { | ||
| expect(instance.toString()).toContain('00:00:47:17'); | ||
| }); | ||
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| it('can import previously generated export', () => { | ||
| expect(new ShutterEDL(instance.toString()).chapters[3].startTime).toEqual(23.01); | ||
| }); | ||
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| it('can convert into other format', () => { | ||
| expect(instance.to(Youtube)).toBeInstanceOf(Youtube) | ||
| }); | ||
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| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| TITLE: bunny-dings | ||
| 000001 BigBuckBunny_320x180.mp4 V C 00:00:00:00 00:00:11:21 00:00:00:00 00:00:11:21 | ||
| 000002 BigBuckBunny_320x180.mp4 A C 00:00:00:00 00:00:11:21 00:00:00:00 00:00:11:21 | ||
| 000003 BigBuckBunny_320x180.mp4 A2 C 00:00:00:00 00:00:11:21 00:00:00:00 00:00:11:21 | ||
| 000004 BigBuckBunny_320x180_cut.mp4 V C 00:00:11:21 00:00:15:18 00:00:11:21 00:00:15:18 | ||
| 000005 BigBuckBunny_320x180_cut.mp4 A C 00:00:11:21 00:00:15:18 00:00:11:21 00:00:15:18 | ||
| 000006 BigBuckBunny_320x180_cut.mp4 A2 C 00:00:11:21 00:00:15:18 00:00:11:21 00:00:15:18 | ||
| 000007 BigBuckBunny_320x180.mp4 V C 00:00:15:18 00:00:23:01 00:00:15:18 00:00:23:01 | ||
| 000008 BigBuckBunny_320x180.mp4 A C 00:00:15:18 00:00:23:01 00:00:15:18 00:00:23:01 | ||
| 000009 BigBuckBunny_320x180.mp4 A2 C 00:00:15:18 00:00:23:01 00:00:15:18 00:00:23:01 | ||
| 000010 BigBuckBunny_320x180_cut.mp4 V C 00:00:23:01 00:00:47:17 00:00:23:01 00:00:47:17 | ||
| 000011 BigBuckBunny_320x180_cut.mp4 A C 00:00:23:01 00:00:47:17 00:00:23:01 00:00:47:17 | ||
| 000012 BigBuckBunny_320x180_cut.mp4 A2 C 00:00:23:01 00:00:47:17 00:00:23:01 00:00:47:17 | ||
| 000013 BigBuckBunny_320x180.mp4 V C 00:00:47:17 00:00:56:02 00:00:47:17 00:00:56:02 | ||
| 000014 BigBuckBunny_320x180.mp4 A C 00:00:47:17 00:00:56:02 00:00:47:17 00:00:56:02 | ||
| 000015 BigBuckBunny_320x180.mp4 A2 C 00:00:47:17 00:00:56:02 00:00:47:17 00:00:56:02 |