From 391f0f2b40e4c8ad3cee5bb59fd8fc2a8d7a78ad Mon Sep 17 00:00:00 2001
From: eric <xiaoshuang.eric@gmail.com>
Date: Sun, 1 Mar 2026 09:36:26 -0600
Subject: [PATCH] 's'

---
 douyin_youtube_ffplay.py | 148 +++++++++++++++++++++++++++++----------
 1 file changed, 110 insertions(+), 38 deletions(-)

diff --git a/douyin_youtube_ffplay.py b/douyin_youtube_ffplay.py
index 10977a6..8e6f92a 100644
--- a/douyin_youtube_ffplay.py
+++ b/douyin_youtube_ffplay.py
@@ -152,46 +152,46 @@ def start_douyin_youtube_ffplay(
         print(f"[WARN] NVENC 检测失败，回退软件编码: {e}")
 
     # 720p (最原始)
-    ffmpeg_command = [
-        "ffmpeg", "-y", "-loglevel", "info", "-nostdin", "-re",
-        "-stats", "-stats_period", "1",
-        "-rw_timeout", "30000000",
-        "-reconnect", "1", "-reconnect_at_eof", "1", "-reconnect_streamed", "1",
-        "-reconnect_delay_max", "5",
-        "-fflags", "+genpts+discardcorrupt+nobuffer+flush_packets",
-        "-flags", "low_delay",
-        "-err_detect", "ignore_err",
-        "-max_delay", "80000",
-        "-thread_queue_size", "2048",
+    # ffmpeg_command = [
+    #     "ffmpeg", "-y", "-loglevel", "info", "-nostdin", "-re",
+    #     "-stats", "-stats_period", "1",
+    #     "-rw_timeout", "30000000",
+    #     "-reconnect", "1", "-reconnect_at_eof", "1", "-reconnect_streamed", "1",
+    #     "-reconnect_delay_max", "5",
+    #     "-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,
-        # 720p
-        "-vf", "fps=30,scale=720:1280:force_original_aspect_ratio=decrease:flags=lanczos,pad=720:1280:(ow-iw)/2:(oh-ih)/2:black",
-        "-c:v", "libx264",
-        "-preset", "fast",
-        # "-tune", "zerolatency",
-        "-profile:v", "high",
-        # 720p
-        # "-minrate", "3200k","-b:v", "3200k", "-maxrate", "3200k", "-bufsize", "6400k",   # bufsize = 2× bitrate，保持真 CBR
-        "-b:v", "2600k","-maxrate", "3000k","-bufsize", "5200k",
-        "-vsync", "cfr",
-        "-g", "60", "-keyint_min", "60",
-        "-r", "30",
-        "-bf", "0",
-        "-sc_threshold", "0",
-        # "-nal-hrd", "cbr",                                          # 改2：强制 CBR
-        # 720p
-        # "-x264-params", "nal-hrd=cbr:force-cfr=1:scenecut=0:filler=1",       # 改3：简化 params，锁死 CBR
-        "-x264-params", "force-cfr=1:scenecut=0:open_gop=0:sync-lookahead=0",
-        "-pix_fmt", "yuv420p",
-        "-c:a", "aac", "-b:a", "128k", "-ar", "48000", "-ac", "2",  # 改4：1080p可音频上 128k（YouTube 推荐）
-        "-af", "aresample=async=1:first_pts=0",
+    #     "-headers", douyin_headers,
+    #     "-i", real_url,
+    #     # 720p
+    #     "-vf", "fps=30,scale=720:1280:force_original_aspect_ratio=decrease:flags=lanczos,pad=720:1280:(ow-iw)/2:(oh-ih)/2:black",
+    #     "-c:v", "libx264",
+    #     "-preset", "fast",
+    #     # "-tune", "zerolatency",
+    #     "-profile:v", "high",
+    #     # 720p
+    #     # "-minrate", "3200k","-b:v", "3200k", "-maxrate", "3200k", "-bufsize", "6400k",   # bufsize = 2× bitrate，保持真 CBR
+    #     "-b:v", "2600k","-maxrate", "3000k","-bufsize", "5200k",
+    #     "-vsync", "cfr",
+    #     "-g", "60", "-keyint_min", "60",
+    #     "-r", "30",
+    #     "-bf", "0",
+    #     "-sc_threshold", "0",
+    #     # "-nal-hrd", "cbr",                                          # 改2：强制 CBR
+    #     # 720p
+    #     # "-x264-params", "nal-hrd=cbr:force-cfr=1:scenecut=0:filler=1",       # 改3：简化 params，锁死 CBR
+    #     "-x264-params", "force-cfr=1:scenecut=0:open_gop=0:sync-lookahead=0",
+    #     "-pix_fmt", "yuv420p",
+    #     "-c:a", "aac", "-b:a", "128k", "-ar", "48000", "-ac", "2",  # 改4：1080p可音频上 128k（YouTube 推荐）
+    #     "-af", "aresample=async=1:first_pts=0",
 
-        "-flags", "+global_header",
-        "-flvflags", "no_duration_filesize",
-        "-f", "flv", youtube_rtmp
-    ]
+    #     "-flags", "+global_header",
+    #     "-flvflags", "no_duration_filesize",
+    #     "-f", "flv", youtube_rtmp
+    # ]
 
 
   
@@ -358,6 +358,78 @@ def start_douyin_youtube_ffplay(
     # "-f","flv", youtube_rtmp
     # ]
 
+    # gpt版本
+    ffmpeg_command = [
+    "ffmpeg", "-y",
+    "-loglevel", "info",
+    "-nostdin",
+    "-stats", "-stats_period", "1",
+
+    # ───────────── 网络稳定 ─────────────
+    "-rw_timeout", "60000000",
+    "-reconnect", "1",
+    "-reconnect_streamed", "1",
+    "-reconnect_at_eof", "1",
+    "-reconnect_delay_max", "10",
+    "-http_persistent", "1",
+
+    # ───────────── 实时核心（关键） ─────────────
+    "-re",
+    "-use_wallclock_as_timestamps", "1",
+    "-fflags", "+genpts+discardcorrupt",
+    "-avoid_negative_ts", "make_zero",
+    "-thread_queue_size", "512",
+    "-probesize", "1M",
+    "-analyzeduration", "1M",
+
+    # 输入源
+    "-headers", douyin_headers,
+    "-i", real_url,
+
+    # ───────────── 视频处理 ─────────────
+    "-vf",
+    "fps=25,"
+    "scale=1080:1920:force_original_aspect_ratio=decrease:flags=bicubic,"
+    "pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black",
+
+    "-c:v", "libx264",
+    "-preset", "veryfast",          # 24h 稳定优先
+    "-tune", "zerolatency",
+    "-profile:v", "high",
+    "-level", "4.2",
+
+    # YouTube 推荐 1080p 码率区间
+    "-b:v", "4500k",
+    "-maxrate", "4500k",
+    "-bufsize", "9000k",
+
+    # 关键帧 & 延迟
+    "-g", "50",
+    "-keyint_min", "50",
+    "-bf", "0",
+    "-sc_threshold", "0",
+    "-pix_fmt", "yuv420p",
+
+    # 输出恒帧模式（必须在 -i 后面才生效）
+    "-fps_mode", "cfr",
+
+    # ───────────── 音频（轻量稳定版） ─────────────
+    "-c:a", "aac",
+    "-b:a", "160k",
+    "-ar", "48000",
+    "-ac", "2",
+    "-af",
+    "highpass=f=100,"
+    "lowpass=f=5200,"
+    "asetrate=48000*1.03,"
+    "aresample=48000:async=1:first_pts=0",
+
+    # ───────────── 输出 ─────────────
+    "-flvflags", "no_duration_filesize",
+    "-f", "flv",
+    youtube_rtmp
+    ]
+