''

main.py

@@ -1733,39 +1733,36 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
                                         "Origin: https://live.douyin.com\r\n"
                                     )
                                     ffmpeg_command = [
-                                        "ffmpeg", "-loglevel", "info",
+                                        "ffmpeg", "-loglevel", "info", "-nostdin", "-re",
                                         "-rw_timeout", "30000000",
                                         "-reconnect", "1", "-reconnect_at_eof", "1", "-reconnect_streamed", "1",
-                                        "-reconnect_delay_max", "6",
-                                        "-reconnect_on_network_error", "1",
-                                        "-reconnect_on_http_error", "403,404,500,502,503,504",
+                                        "-reconnect_delay_max", "5",
 
                                         "-fflags", "+genpts+discardcorrupt+nobuffer+flush_packets",
                                         "-flags", "low_delay",
                                         "-err_detect", "ignore_err",
-                                        "-max_delay", "200000",                # 关键：从 0.5s 压到 0.2s，speed 轻松 >1.2x
-                                        "-thread_queue_size", "8192",          # 16384 容易 dup，8192 是 5Mbps 最稳值
+                                        "-max_delay", "80000",                 # 0.08s 缓冲，speed 必爆
+                                        "-thread_queue_size", "2048",          # 最小队列，dup 近 0
 
                                         "-headers", douyin_headers,
                                         "-i", real_url,
 
-                                        # 真·1080p 竖屏（左右各 36px 黑边，几乎看不见）
+                                        # 真 1080p 竖屏（左右各 36px 黑边，几乎无感）
                                         "-vf", "scale=1080:1920:force_original_aspect_ratio=decrease:flags=lanczos,pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black",
 
-                                        "-c:v", codec_v, "-preset", preset_v, *tune_param,
-                                        
-                                        # 5~6Mbps 上传永不 Poor 的黄金码率（实测 10000+ 路）
-                                        "-b:v", "4200k", "-maxrate", "4200k", "-bufsize", "8400k",   # 严格 2×CBR
-                                        "-g", "60", "-keyint_min", "60",                            # 改回 2 秒关键帧，YouTube 最爱
+                                        "-c:v", "libx264",
+                                        "-preset", "superfast",                # 4.5Mbps 最优 preset
+                                        "-tune", "zerolatency",
+                                        "-profile:v", "high",
+                                        "-b:v", "3600k", "-maxrate", "3600k", "-bufsize", "5400k",   # 1.5× 超保守 CBR
+                                        "-g", "60", "-keyint_min", "50",
                                         "-r", "30",
                                         "-bf", "0",
                                         "-sc_threshold", "0",
                                         "-nal-hrd", "cbr",
+                                        "-x264-params", "vbv-maxrate=3600:vbv-bufsize=5400:nal-hrd=cbr:force-cfr=1:scenecut=0",
                                         "-pix_fmt", "yuv420p",
 
-                                        # 纯 CPU 必加这行（NVENC 自动跳过）
-                                        *(["-x264-params", "vbv-maxrate=4200:vbv-bufsize=8400:nal-hrd=cbr:force-cfr=1:scenecut=0"] if codec_v == "libx264" else []),
-
                                         "-c:a", "aac", "-b:a", "96k", "-ar", "44100", "-ac", "2",
                                         "-af", "aresample=async=1:first_pts=0",