google/zx showcase

showcase.mjs

#!/usr/bin/env zx
cd(`/Users/tarasmazepa`);
await $`rm temp.mp4 temp.mkv audio.mp3`.nothrow();
const script =
  argv._[0] +
  " Let me know in the comments what other life situation you want me to talk next. Subscribe, follow, and give a like to hear more stories like this.";
const ssml = `<speak>${script
  .replace(/([.?!])\s*(?=[A-Z])/g, "$1|")
  .split("|")
  .filter((s) => s.length > 0)
  .flatMap((text, i) => [
    `<mark name="${i}~${text}"/>`,
    text,
    `<mark name="${i}"/>`,
  ])
  .join("")}</speak>`;
const response = await $`curl -X POST \
-H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
-H "Content-Type: application/json; charset=utf-8" \
-H "X-Goog-User-Project:lyflair-production" \
-d ${JSON.stringify({
  input: {
    ssml,
  },
  voice: {
    languageCode: "en-US",
    name: "en-US-Wavenet-F",
  },
  audioConfig: {
    audioEncoding: "MP3",
    pitch: 2.35,
    speakingRate: 1.1,
  },
  enableTimePointing: ["SSML_MARK"],
})} "https://texttospeech.googleapis.com/v1beta1/text:synthesize"`.then((r) =>
  JSON.parse(r.stdout)
);
if (!response?.timepoints?.length) exit(1);
console.log(response.timepoints);
let subtitles = "";
const secondsToTimestamp = (seconds) =>
  new Date(seconds * 1000).toISOString().substr(11, 12).replace(".", ",");
for (let i = 0; i < response.timepoints.length - 1; i++) {
  subtitles += `${i}
${secondsToTimestamp(
  response.timepoints[i].timeSeconds
)} --> ${secondsToTimestamp(response.timepoints[i + 1].timeSeconds)}
${response.timepoints[i].markName.split("~")[1].trim()}

`;
}
await $`echo ${subtitles} > srt.srt`;
await $`echo ${response.audioContent}`.pipe($`base64 -d > audio.mp3`);
const videos = await $`find pexels -type f -name '*mp4'`
  .pipe($`sort -R | head -n $((($(mp3info -p "%S" audio.mp3)-1)/3+1))`)
  .then((r) => r.stdout.split("\n").filter((s) => s.length > 0));
const numbers = videos.map((_, i) => i + 1);
await $`ffmpeg -i audio.mp3 ${videos.flatMap((s) => [
  "-i",
  s,
])} -filter_complex ${`${numbers
  .map((i) => `[${i}:v:0]scale=1080:1920,trim=duration=3[v${i}]`)
  .join(";")}, ${numbers.map((i) => `[v${i}]`).join(" ")} concat=n=${
  videos.length
}:v=1 [v]`} -map "[v]" -map 0:a temp.mkv -y`;
const folder = "imgonnahelp-promo-videos";
await $`mkdir ${folder}`.nothrow();
const outputFileName = `${folder}/${new Date()
  .toISOString()
  .replace(/\W/g, "_")}.mp4`;
await $`ffmpeg -i temp.mkv -lavfi "subtitles=srt.srt:force_style='Alignment=10'" ${outputFileName} -y`;
await $`open ${outputFileName} -a mkplayer`;