1

scripts/nodejs/subtitle_keyword_drawtext.js

@@ -278,11 +278,12 @@ function buildDrawtextForMatch(match, layout) {
 
   const t0 = match.startSec.toFixed(3);
   const t1 = match.endSec.toFixed(3);
-  const enable = `between(t\\,${t0}\\,${t1})`;
+  /** 用 gte*lte 避免 between(t,a,b) 中逗号打断 -vf 滤镜链 */
+  const enable = `gte(t\\,${t0})*lte(t\\,${t1})`;
 
   let fontsizePart = String(baseSize);
   if (match.effectType === "pulse-scale") {
-    fontsizePart = `${baseSize}*(1+0.1*sin(2*PI*(t-${t0})*4))`;
+    fontsizePart = `${baseSize}*(1+0.08*sin(8*PI*t))`;
   }
 
   const parts = [
@@ -323,7 +324,19 @@ function buildKeywordDrawtextFilter(matches, opts) {
     position: String(style.position || "bottom"),
   };
 
-  return matches.map((m) => buildDrawtextForMatch(m, layout)).join(",");
+  const filters = matches.map((m) => buildDrawtextForMatch(m, layout));
+  const chain = filters.join(",");
+  if (chain.length > 6000) {
+    logKeywordWarn("drawtext 滤镜过长，仅保留前 40 个关键词");
+    return filters.slice(0, 40).join(",");
+  }
+  return chain;
+}
+
+function logKeywordWarn(msg, fields) {
+  if (globalThis.__native?.log) {
+    globalThis.__native.log("warn", `[autoGenerateSubtitleAndBGM] ${msg}`, fields ?? null);
+  }
 }
 
 /**