diff --git a/douyin_youtube_ffplay.py b/douyin_youtube_ffplay.py
index b1cbda0..e0e4ad7 100644
--- a/douyin_youtube_ffplay.py
+++ b/douyin_youtube_ffplay.py
@@ -291,7 +291,6 @@ def start_douyin_youtube_ffplay(
     # "-c:a", "aac", "-b:a", "128k", "-ar", "44100", "-ac", "2",
 
     # "-af",
-    # "arnndn=m=./arnndn-models/cb.rnnn:mix=0.80,"
     # "afftdn=nf=-18:tn=1,"
     # "highpass=f=120,lowpass=f=4600,"
     # "equalizer=f=250:width_type=o:width=2:g=-6,"
@@ -305,86 +304,69 @@ def start_douyin_youtube_ffplay(
     # "-f", "flv", youtube_rtmp
     # ]
 
-# 1080p 工业优化版（稳定 + 防ContentID + 低CPU）
+# 1080p 工业优化版（CPU 低负载 + 防ContentID + 稳定25fps）
     ffmpeg_command = [
-        "ffmpeg", "-y", "-loglevel", "info", "-nostdin", "-re",
-        "-stats", "-stats_period", "1",
+    "ffmpeg", "-y", "-loglevel", "info", "-nostdin", "-re",
+    "-stats", "-stats_period", "1",
 
-        # 网络稳定性
-        "-rw_timeout", "30000000",
-        "-reconnect", "1", "-reconnect_at_eof", "1",
-        "-reconnect_streamed", "1",
-        "-reconnect_delay_max", "5",
+    # 网络稳定性
+    "-rw_timeout", "30000000",
+    "-reconnect", "1", "-reconnect_at_eof", "1",
+    "-reconnect_streamed", "1",
+    "-reconnect_delay_max", "5",
 
-        # 低延迟
-        "-fflags", "+genpts+discardcorrupt+nobuffer+flush_packets",
-        "-flags", "low_delay",
-        "-err_detect", "ignore_err",
-        "-max_delay", "80000",
-        "-thread_queue_size", "2048",
+    # 低延迟
+    "-fflags", "+genpts+discardcorrupt+nobuffer+flush_packets",
+    "-flags", "low_delay",
+    "-err_detect", "ignore_err",
+    "-max_delay", "80000",
+    "-thread_queue_size", "2048",
 
-        "-headers", douyin_headers,
-        "-i", real_url,
+    "-headers", douyin_headers,
+    "-i", real_url,
 
-        # ================== 视频处理 ==================
-        # 保留你竖屏策略，降低 CPU bicubic → bilinear
-        "-vf", "fps=25,scale=1080:1920:force_original_aspect_ratio=decrease:flags=bilinear,"
-            "pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black",
+    # ================== 视频处理 ==================
+    # bilinear 降低 CPU + 保持竖屏
+    "-vf", "fps=25,scale=1080:1920:force_original_aspect_ratio=decrease:flags=bilinear,"
+           "pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black",
 
-        # 编码优化
-        "-c:v", "libx264",
-        "-preset", "veryfast",                 # superfast→veryfast（画质更稳）
-        "-tune", "zerolatency",
-        "-profile:v", "high",
-        "-b:v", "4500k", "-maxrate", "5000k", "-bufsize", "9000k",
-        "-vsync", "cfr",
-        "-g", "50", "-keyint_min", "50",
-        "-r", "25",
-        "-bf", "0",
-        "-sc_threshold", "0",
-        "-x264-params", "force-cfr=1:scenecut=0:open_gop=0:sync-lookahead=0",
-        "-pix_fmt", "yuv420p",
+    # 编码优化
+    "-c:v", "libx264",
+    "-preset", "ultrafast",                # CPU 低负载
+    "-tune", "zerolatency",
+    "-profile:v", "high",
+    "-b:v", "4500k", "-maxrate", "5000k", "-bufsize", "9000k",
+    "-vsync", "cfr",
+    "-g", "50", "-keyint_min", "50",
+    "-r", "25",
+    "-bf", "0",
+    "-sc_threshold", "0",
+    "-x264-params", "force-cfr=1:scenecut=0:open_gop=0:sync-lookahead=0",
+    "-pix_fmt", "yuv420p",
 
-        # ================== 音频编码 ==================
-        "-c:a", "aac",
-        "-b:a", "96k",               # 降码率，降低ContentID指纹精度
-        "-ar", "48000",
-        "-ac", "2",
+    # ================== 音频编码 ==================
+    "-c:a", "aac",
+    "-b:a", "96k",               # 降码率，防ContentID
+    "-ar", "48000",
+    "-ac", "2",
 
-        # ================== 音频防ContentID链 ==================
-        "-af",
-        # 深度降噪（可选，模型路径必须绝对路径）
-        # "arnndn=m=/home/eric/ffmpeg/arnndn-models/cb.rnnn:mix=0.6,"
-        
-        # 背景音乐削弱（关键防ContentID）
-        "afftdn=nf=-25:tn=1:om=o,"
-        
-        # 人声带通（强化人声）
-        "highpass=f=90,lowpass=f=4200,"
-        
-        # 人声EQ
-        "equalizer=f=180:width_type=o:width=2:g=3,"   # 低频增强
-        "equalizer=f=1200:width_type=o:width=1.2:g=2,"# 清晰度
-        
-        # 轻微变调（ContentID杀手）
-        "asetrate=48000*1.006,aresample=48000,"
-        
-        # 压缩器
-        "acompressor=threshold=-28dB:ratio=3:attack=5:release=80:makeup=3,"
-        
-        # 音量
-        "volume=1.05,"
-        
-        # 防音画漂移
-        "aresample=async=1:first_pts=0",
+    # ================== 音频轻量防ContentID ==================
+    "-af",
+    # 背景音乐削弱 + 人声强化 + 轻微变调
+    "highpass=f=90,lowpass=f=4200,"
+    "equalizer=f=180:width_type=o:width=2:g=3,"
+    "equalizer=f=1200:width_type=o:width=1.2:g=2,"
+    "asetrate=48000*1.006,aresample=48000,"
+    "acompressor=threshold=-28dB:ratio=3:attack=5:release=80:makeup=3,"
+    "volume=1.05,"
+    "aresample=async=1:first_pts=0",
 
-        # ================== 输出 ==================
-        "-flvflags", "no_duration_filesize",
-        "-f", "flv", youtube_rtmp
-    ]
-
-        # ====================== 主重试循环（原样保留） ======================
-        
+    # ================== 输出 ==================
+    "-flvflags", "no_duration_filesize",
+    "-f", "flv", youtube_rtmp
+]
+    
+    
     proc = None
     stderr_q = None
     reader_t = None