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videoToScreenshot.ts
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videoToScreenshot.ts
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const ffmpeg = require('fluent-ffmpeg');
const fsExtra = require('fs-extra');
const fs = require('fs');
type Something = {
videoPath: string;
folder: string;
duration: number;
second: number;
};
const getFileName = (videoPath:string) => videoPath.split('.mov')[0];
const removeFolder = async (path:string) => {
try {
await fsExtra.remove(path)
console.log('')
console.log(`Removed folder: '${path}'`)
} catch (err) {
console.error(err)
throw new Error(`error removing folder ${path}`);
}
}
/** Renaming files from 0_0-30 to 1.png, 2.png... */
const renameAndMoveFiles = (videoPath: string) => {
const videoFileName = getFileName(videoPath)
fs.readdir(videoFileName, async (err: any, files: string[]) => {
if (err) {
console.error('Could not list the directory.', err);
process.exit(1);
}
await removeFolder(`src/Welcome/${videoFileName}`);
const filesArray = files
.map((file) => {
const [seconds, frames] = file.split('.png')[0].split('_');
const fileOrder = parseInt(seconds) * 30 + parseInt(frames);
return { fileOrder, fileName: file };
})
.filter(({ fileOrder }) => Boolean(fileOrder));
const sorted = filesArray.sort((a, b) => a.fileOrder - b.fileOrder);
const folder = `${videoFileName}`
sorted.forEach(async ({ fileName, fileOrder }) => {
try {
await fsExtra.move(`${folder}/${fileName}`, `src/Welcome/${videoFileName}/${fileOrder}.png`);
// console.log(`success moving ${fileName} to ${fileOrder}.png`);
} catch (err) {
console.error(err);
}
});
});
};
export const MockDuck = () => {
const getVideoDuration = (pathToVideo: string) => {
return new Promise<number>((resolve, _reject) => {
ffmpeg.ffprobe(pathToVideo, (_err: any, metadata: any) => {
const duration = metadata?.streams[0]?.duration;
resolve(duration);
});
});
};
const saveScreenShotForSecond = async (props: Pick<Something, 'videoPath' | 'second'>) => {
const { videoPath, second } = props;
const secondValue = second.toString().padStart(2, '0');
const videoFileName = getFileName(videoPath)
const folderPath = `${videoFileName}`
return new Promise((resolve, _reject) => {
ffmpeg(videoPath)
.seekInput(`00:00:${secondValue}`)
.screenshots({
filename: `${folderPath}/${second}.png`,
timestamps: [
`00:00:${secondValue}.000`,
`00:00:${secondValue}.033`,
`00:00:${secondValue}.066`,
`00:00:${secondValue}.099`,
`00:00:${secondValue}.132`,
`00:00:${secondValue}.165`,
`00:00:${secondValue}.198`,
`00:00:${secondValue}.231`,
`00:00:${secondValue}.264`,
`00:00:${secondValue}.297`,
`00:00:${secondValue}.330`,
`00:00:${secondValue}.363`,
`00:00:${secondValue}.396`,
`00:00:${secondValue}.429`,
`00:00:${secondValue}.462`,
`00:00:${secondValue}.495`,
`00:00:${secondValue}.528`,
`00:00:${secondValue}.561`,
`00:00:${secondValue}.594`,
`00:00:${secondValue}.627`,
`00:00:${secondValue}.660`,
`00:00:${secondValue}.693`,
`00:00:${secondValue}.726`,
`00:00:${secondValue}.759`,
`00:00:${secondValue}.792`,
`00:00:${secondValue}.825`,
`00:00:${secondValue}.858`,
`00:00:${secondValue}.891`,
`00:00:${secondValue}.924`,
`00:00:${secondValue}.957`,
],
})
.on('end', () => {
resolve(null);
});
});
};
const extractScreenshotsFromVideo = async (props: Pick<Something, 'duration' | 'videoPath'>) => {
const { videoPath, duration } = props;
const seconds = Math.round(duration) + 2;
const screenshotPromises = Array.from({ length: seconds }).map(
async (_, i) =>
await saveScreenShotForSecond({
videoPath,
second: i,
}),
);
await Promise.all(screenshotPromises);
};
const videoToScreenshots = async (props: Pick<Something, 'videoPath'>) => {
const { videoPath } = props;
const duration = await getVideoDuration(videoPath);
const videoFileName = getFileName(videoPath)
const folderPath = `${videoFileName}`
// await removeFolder(folderPath)
await fsExtra.ensureDir(folderPath)
await extractScreenshotsFromVideo({
videoPath,
duration,
});
console.log('')
console.log('')
console.log({videoFileName})
renameAndMoveFiles(videoPath);
console.log('----------------------------------------------------------------');
console.log('');
console.log(`[videoToScreenshots DONE]: "${videoPath}"`);
};
const run = async () => {
// TODO: do this for all files
const files = [
'chat.mov',
'groups.mov',
'meals.mov',
'workout.mov',
]
console.log('')
console.log('----------------------------------------------------------------')
console.log('[START] videoToScreenshots')
// const promises = files.map(filePath => videoToScreenshots({
// videoPath: filePath
// }))
// const promises = files.map(filePath => mockDuck.videoToScreenshots({
// videoPath: filePath
// }))
// await Promise.all(promises);
await videoToScreenshots({
videoPath: 'chat.mov'
})
await videoToScreenshots({
videoPath: 'groups.mov'
})
await videoToScreenshots({
videoPath: 'meals.mov'
})
await videoToScreenshots({
videoPath: 'workout.mov'
})
console.log('')
console.log('----------------------------------------------------------------')
console.log('[DONE] videoToScreenshots')
}
return {
videoToScreenshots,
run
};
};
const run = () => {
const mockDuck = MockDuck();
mockDuck.run();
};
run();