SNS 마케팅: 인스타그램 & 유튜브

[0-2초: 훅] — "이 코드 한 줄로 API 비용 90% 절감"
[3-15초: 본문] — 화면 녹화 + 자막 + 효과음
[16-25초: 결과] — Before/After 데이터
[26-30초: CTA] — "전체 코드 프로필 링크에"

# auto-subtitle.py
import whisper
import subprocess

def generate_subtitle(video_path, output_path):
    model = whisper.load_model('base')
    result = model.transcribe(video_path, language='ko')

    srt_path = video_path.replace('.mp4', '.srt')
    with open(srt_path, 'w', encoding='utf-8') as f:
        for i, seg in enumerate(result['segments'], 1):
            start = seconds_to_srt_time(seg['start'])
            end = seconds_to_srt_time(seg['end'])
            f.write(f"{i}\n{start} --> {end}\n{seg['text']}\n\n")

    subprocess.run([
        'ffmpeg', '-i', video_path,
        '-vf', f"subtitles={srt_path}:force_style='FontSize=24,Bold=1,PrimaryColour=&H00FFFFFF,OutlineColour=&H00000000'",
        '-c:a', 'copy',
        output_path,
    ])


def seconds_to_srt_time(seconds):
    h = int(seconds // 3600)
    m = int((seconds % 3600) // 60)
    s = int(seconds % 60)
    ms = int((seconds % 1) * 1000)
    return f"{h:02d}:{m:02d}:{s:02d},{ms:03d}"


generate_subtitle('demo.mp4', 'demo-with-subs.mp4')

// thumbnail-ab-test.js (YouTube API)
const TEST_DURATION_HOURS = 24;
const VARIANTS = [
  { name: 'A: 얼굴 클로즈업 + 빨간 화살표', score: 0 },
  { name: 'B: 코드 스크린샷 + 충격 이모지', score: 0 },
];

async function rotateThumbnail(videoId, variant) {
  await fetch(`https://www.googleapis.com/youtube/v3/thumbnails/set`, {
    method: 'POST',
    headers: { Authorization: `Bearer ${TOKEN}` },
    body: JSON.stringify({ videoId, thumbnail: variant.url }),
  });
}

async function calculateCTR(videoId, variant) {
  const stats = await fetch(`/youtube/analytics/v2/reports?ids=channel==MINE&metrics=impressions,impressionClickThroughRate&filters=video==${videoId}`)
    .then(r => r.json());
  return stats.rows[0][1];
}

// 12시간씩 돌려서 CTR 비교 → 승자 자동 선택