I'm trying to figure out how to use this to convert a video to a webp file. I took this code from the Util file from the documentation. I'm doing this because I figured it takes 5 seconds to send a video using whatsapp web js and sending a webp will be faster
the code:
* Formats a video to webp
* @param {MessageMedia} media
*
* @returns {Promise<MessageMedia>} media in webp format
*/
static async formatVideoToWebpSticker(media) {
if (!media.mimetype.includes('video'))
throw new Error('media is not a video');
const videoType = media.mimetype.split('/')[1];
const tempFile = path.join(
tmpdir(),
`${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`
);
const stream = new (require('stream').Readable)();
const buffer = Buffer.from(
media.data.replace(`data:${media.mimetype};base64,`, ''),
'base64'
);
stream.push(buffer);
stream.push(null);
await new Promise((resolve, reject) => {
ffmpeg(stream)
.inputFormat(videoType)
.on('error', reject)
.on('end', () => resolve(true))
.addOutputOptions([
'-vcodec',
'libwebp',
'-vf',
// eslint-disable-next-line no-useless-escape
'scale=\'iw*min(300/iw\,300/ih)\':\'ih*min(300/iw\,300/ih)\',format=rgba,pad=300:300:\'(300-iw)/2\':\'(300-ih)/2\':\'#00000000\',setsar=1,fps=10',
'-loop',
'0',
'-ss',
'00:00:00.0',
'-t',
'00:00:05.0',
'-preset',
'default',
'-an',
'-vsync',
'0',
'-s',
'512:512',
])
.toFormat('webp')
.save(tempFile);
});
const data = await fs.readFile(tempFile, 'base64');
await fs.unlink(tempFile);
return {
mimetype: 'image/webp',
data: data,
filename: media.filename,
};
}
