fix: Seedance content-policy survival \u2014 anonymized image prompts + auto-fallback chain + per-anchor retry UI

aether_ad/media/fal_client.py

@@ -30,10 +30,17 @@ _IMAGE_QUALITY_SUFFIX = (
     "Style: hyperrealistic cinematography, IMAX-grade composition, ARRI Alexa "
     "cinema look, anamorphic depth of field, professional color grading, 8K "
     "detail, editorial magazine framing, golden-hour or rim lighting, motivated "
-    "natural lighting only. Skin and surfaces have authentic texture (no plastic "
-    "or waxy look). Subjects are sharply in focus, background has cinematic bokeh. "
+    "natural lighting only. Surfaces have authentic texture (no plastic or waxy "
+    "look). Subjects are sharply in focus, background has cinematic bokeh. "
+    # ── Anonymization (Seedance 2.0 i2v rejects recognizable real-person likenesses)
+    "If human subjects appear, render them anonymized: prefer back-view, "
+    "side-profile, silhouette, half-shadow, hair-obscured, hands-only, or "
+    "subject framed from behind. Avoid clear frontal close-up portraits that "
+    "could resemble identifiable real people. Stylized, anonymous, atmospheric. "
+    # ── General negatives
     "Avoid: blurry, low-resolution, amateur snapshot, watermark, plastic skin, "
-    "morphing artifacts, deformed hands, extra fingers, wrong anatomy. "
+    "morphing artifacts, deformed hands, extra fingers, wrong anatomy, frontal "
+    "celebrity-like portraits. "
     "Strictly NO text, NO letters, NO Korean characters, NO captions, NO subtitles, "
     "NO writing, NO typography, NO logos anywhere in the image. Pure visual scene only."
 )

static/app.js

@@ -662,58 +662,105 @@ function buildCombinedScenePrompt(beats) {
   return lines.join("\n");
 }
 
-/** Generate a single full-spot video (Seedance 2.0). */
-async function generateFinalVideo(sIdx) {
+function _isContentPolicyError(msg) {
+  const m = String(msg || '').toLowerCase();
+  return m.includes('content_policy_violation')
+      || m.includes('content policy')
+      || m.includes('likenesses of real people')
+      || m.includes('private information');
+}
+
+/** Generate a single full-spot video (Seedance 2.0).
+ *  Anchor = first chained image. If Seedance rejects on content policy,
+ *  automatically retry with the next image in the chain. */
+async function generateFinalVideo(sIdx, anchorBeatIdx = 0) {
   const seed = LATEST_RESULTS?.seeds?.[sIdx]?.seed;
   if (!seed) return;
   const beats = seed.beats || [];
   if (!beats.length) return;
 
-  // Use the FIRST chained image as the visual anchor — Seedance animates from there.
-  const anchorImg = MEDIA_STATE[sIdx]?.[0]?.image_url;
-  if (!anchorImg) {
+  // Build candidate list (any beat with an image) starting from anchorBeatIdx
+  const allCandidates = [];
+  for (let i = 0; i < beats.length; i++) {
+    const u = MEDIA_STATE[sIdx]?.[i]?.image_url;
+    if (u) allCandidates.push({ beatIdx: i, url: u });
+  }
+  if (!allCandidates.length) {
     FINAL_VIDEO_STATE[sIdx] = {
       status: 'error',
-      message: '이미지가 아직 생성되지 않아 비디오 생성을 시작할 수 없습니다.',
+      message: '이미지가 아직 생성되지 않아 비디오를 시작할 수 없습니다.',
     };
     renderFinalVideoSection(sIdx);
     return;
   }
+  // Reorder so anchorBeatIdx comes first, then the rest in beat order
+  const candidates = [
+    ...allCandidates.filter(c => c.beatIdx === anchorBeatIdx),
+    ...allCandidates.filter(c => c.beatIdx !== anchorBeatIdx),
+  ];
 
   const totalSec = beats[beats.length - 1].time_range[1];
   const combinedScene = buildCombinedScenePrompt(beats);
 
-  FINAL_VIDEO_STATE[sIdx] = {
-    status: 'loading',
-    target_seconds: totalSec,
-    message: `🎬 Seedance 2.0이 ${totalSec}초 단일 영상 생성 중… (3~6분 소요)`,
-  };
-  renderFinalVideoSection(sIdx);
-
-  try {
-    const r = await fetch('/api/media/video', {
-      method: 'POST',
-      headers: {'Content-Type': 'application/json'},
-      body: JSON.stringify({
-        scene: combinedScene,
-        image_url: anchorImg,
-        duration_seconds: totalSec,
-      }),
-    });
-    const data = await r.json();
-    if (!r.ok) throw new Error(data.detail || `HTTP ${r.status}`);
-    FINAL_VIDEO_STATE[sIdx] = {
-      status: 'ready',
-      video_url: data.video_url,
-      target_seconds: totalSec,
-    };
-  } catch (e) {
+  let lastErr = '';
+  let policyRejections = 0;
+  for (let attempt = 0; attempt < candidates.length; attempt++) {
+    const cand = candidates[attempt];
     FINAL_VIDEO_STATE[sIdx] = {
-      status: 'error',
+      status: 'loading',
       target_seconds: totalSec,
-      message: `비디오 생성 실패: ${e.message || e}`,
+      anchor_beat: cand.beatIdx,
+      message: attempt === 0
+        ? `🎬 Seedance 2.0이 ${totalSec}초 영상 생성 중… (앵커: 비트 ${cand.beatIdx + 1}, 3~6분)`
+        : `⚠️ 정책 거부 ${policyRejections}회 — 비트 ${cand.beatIdx + 1} 이미지로 재시도 중…`,
     };
+    renderFinalVideoSection(sIdx);
+
+    try {
+      const r = await fetch('/api/media/video', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({
+          scene: combinedScene,
+          image_url: cand.url,
+          duration_seconds: totalSec,
+        }),
+      });
+      const data = await r.json();
+      if (!r.ok) throw new Error(data.detail || `HTTP ${r.status}`);
+      FINAL_VIDEO_STATE[sIdx] = {
+        status: 'ready',
+        video_url: data.video_url,
+        target_seconds: totalSec,
+        anchor_beat: cand.beatIdx,
+        policy_retries: policyRejections,
+      };
+      renderFinalVideoSection(sIdx);
+      return;
+    } catch (e) {
+      const msg = e.message || String(e);
+      lastErr = msg;
+      if (_isContentPolicyError(msg)) {
+        policyRejections += 1;
+        continue;   // try next candidate
+      }
+      // non-policy error: stop, show
+      FINAL_VIDEO_STATE[sIdx] = {
+        status: 'error',
+        target_seconds: totalSec,
+        message: `비디오 생성 실패: ${msg}`,
+      };
+      renderFinalVideoSection(sIdx);
+      return;
+    }
   }
+  // All candidates rejected by policy
+  FINAL_VIDEO_STATE[sIdx] = {
+    status: 'error',
+    target_seconds: totalSec,
+    message: `Seedance가 모든 이미지를 정책으로 거부 (${policyRejections}회). `
+           + `이미지를 재생성한 뒤 (인물 정면 포트레이트 회피) 다시 시도하세요. ${lastErr.slice(0, 200)}`,
+  };
   renderFinalVideoSection(sIdx);
 }
 
@@ -739,12 +786,16 @@ function renderFinalVideoSection(sIdx) {
   }
 
   if (st.video_url) {
+    const anchorIdx = (typeof st.anchor_beat === 'number') ? st.anchor_beat + 1 : 1;
+    const retryNote = st.policy_retries
+      ? ` · 정책 거부 ${st.policy_retries}회 후 재시도 성공`
+      : '';
     html.push(`
       <div class="media-thumb stitch-thumb">
         <video src="${escapeAttr(st.video_url)}" controls playsinline preload="metadata"></video>
       </div>
       <div class="stitch-progress">
-        ${totalSec}초 영상 · 5개 씬을 단일 i2v 콜로 통합 생성 · 기준 이미지: 비트 1
+        ${totalSec}초 영상 · ${beats.length}개 씬 통합 i2v · 앵커 이미지: 비트 ${anchorIdx}${retryNote}
       </div>
       <div class="stitch-actions">
         <a class="btn-stitch-download"
@@ -756,6 +807,13 @@ function renderFinalVideoSection(sIdx) {
   } else if (st.status !== 'loading') {
     const enough = imagesReady >= 1;
     const disabled = !enough ? 'disabled' : '';
+    // If a previous run errored on policy, surface a "Try with another anchor" hint
+    const anchorButtons = (st.status === 'error' && imagesReady > 1)
+      ? beats.map((_, i) => MEDIA_STATE[sIdx]?.[i]?.image_url
+            ? `<button type="button" class="btn-media" data-final-seed="${sIdx}" data-anchor-beat="${i}">🎯 비트 ${i + 1} 이미지로 재시도</button>`
+            : ''
+          ).join('')
+      : '';
     html.push(`
       <div class="stitch-progress">
         이미지 ${imagesReady}/${beats.length} 준비
@@ -764,6 +822,7 @@ function renderFinalVideoSection(sIdx) {
       <button type="button" class="btn-stitch" data-final-seed="${sIdx}" ${disabled}>
         🎬 ${totalSec}초 광고 영상 생성 (Seedance 2.0, 한 번 호출)
       </button>
+      ${anchorButtons ? `<div class="media-controls" style="flex-direction:row;flex-wrap:wrap;">${anchorButtons}</div>` : ''}
     `);
   }
 
@@ -952,14 +1011,21 @@ function escapeAttr(s) {
   return String(s || '').replace(/"/g, '&quot;').replace(/</g, '&lt;');
 }
 
-/* Delegate clicks on per-beat image buttons + final-video regen button. */
+/* Delegate clicks on per-beat image buttons + final-video regen + anchor retry. */
 document.addEventListener('click', (e) => {
+  // Final-video regen / try-another-anchor (.btn-media or .btn-stitch with data-final-seed)
+  const finalEl = e.target.closest('[data-final-seed]');
+  if (finalEl && !finalEl.disabled) {
+    const sIdx = parseInt(finalEl.dataset.finalSeed ?? finalEl.dataset.stitchSeed, 10);
+    const anchor = finalEl.dataset.anchorBeat;
+    if (!Number.isNaN(sIdx)) {
+      generateFinalVideo(sIdx, anchor !== undefined ? parseInt(anchor, 10) : 0);
+    }
+    return;
+  }
   const finalBtn = e.target.closest('.btn-stitch');
   if (finalBtn && !finalBtn.disabled) {
-    const sIdx = parseInt(
-      finalBtn.dataset.finalSeed ?? finalBtn.dataset.stitchSeed,
-      10,
-    );
+    const sIdx = parseInt(finalBtn.dataset.stitchSeed, 10);
     if (!Number.isNaN(sIdx)) generateFinalVideo(sIdx);
     return;
   }
@@ -970,7 +1036,6 @@ document.addEventListener('click', (e) => {
   if (btn.dataset.mediaBtn === 'image') {
     manualGenerateImage(sIdx, bIdx);
   }
-  // Per-beat video buttons removed — single Seedance video at the bottom only.
 });