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eric
2025-12-28 08:45:14 -06:00
parent 9107995c02
commit 53f2c77421
1 changed files with 83 additions and 17 deletions
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main.py
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@@ -1863,6 +1863,71 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
# 1080p 输出到 HDMI
# 主 FFmpeg 命令 —— 仅负责拉流、转码、输出到 pipe（供 ffplay HDMI 显示）
# ffmpeg_command = [
# "ffmpeg",
# "-y",
# "-loglevel", "info",
# "-nostdin",
# "-re",
# "-stats", "-stats_period", "1",
# # 抖音源重连参数
# "-rw_timeout", "30000000",
# "-reconnect", "1",
# "-reconnect_at_eof", "1",
# "-reconnect_streamed", "1",
# "-reconnect_delay_max", "10",
# # 低延迟输入 flags
# "-fflags", "+genpts+discardcorrupt+nobuffer+flush_packets",
# "-flags", "low_delay",
# "-err_detect", "ignore_err",
# # 输入 headers（抖音必备）
# "-headers", douyin_headers,
# "-i", real_url,
# # ==================== 视频处理 ====================
# # 强制 30fps + 1080p（竖屏居中补黑边）
# "-vf", "fps=30,scale=1080:1920:force_original_aspect_ratio=decrease:flags=lanczos,"
# "pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black",
# # ==================== 编码参数 ====================
# "-c:v", codec_v, # libx264 或 h264_nvenc（已在前文检测）
# "-preset", preset_v, # veryfast 或 p5
# *tune_param, # zerolatency 或 NVENC 参数
# "-profile:v", "high",
# "-b:v", "5200k",
# "-maxrate", "5800k",
# "-bufsize", "10400k",
# "-g", "60",
# "-keyint_min", "60",
# "-r", "30",
# "-vsync", "cfr",
# "-bf", "0",
# "-sc_threshold", "0",
# "-x264-params", "force-cfr=1:scenecut=0:open_gop=0:sync-lookahead=0",
# "-pix_fmt", "yuv420p",
# # ==================== 音频 ====================
# "-c:a", "aac",
# "-b:a", "128k",
# "-ar", "44100",
# "-ac", "2",
# "-af", "aresample=async=1:first_pts=0",
# # ==================== 输出格式 ====================
# "-flags", "+global_header",
# "-flvflags", "no_duration_filesize",
# "-f", "flv", # 格式必须是 flv，ffplay 读取最稳定
# "pipe:1" # 直接输出到标准输出（管道），供 ffplay 读取
# ]
# 720p 输出到 HDMI（优化版，适合 Orange Pi Zero 2W）
ffmpeg_command = [
"ffmpeg",
"-y",
@@ -1888,22 +1953,23 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
"-headers", douyin_headers,
"-i", real_url,
# ==================== 视频处理 ====================
# 强制 30fps + 1080p（竖屏居中补黑边）
"-vf", "fps=30,scale=1080:1920:force_original_aspect_ratio=decrease:flags=lanczos,"
"pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black",
# ==================== 编码参数 ====================
"-c:v", codec_v, # libx264 或 h264_nvenc（已在前文检测）
"-preset", preset_v, # veryfast 或 p5
*tune_param, # zerolatency 或 NVENC 参数
# ==================== 视频处理：720p 竖屏 ====================
"-vf", "fps=30,"
"scale=720:1280:force_original_aspect_ratio=decrease:flags=lanczos,"
"pad=720:1280:(ow-iw)/2:(oh-ih)/2:black",
# ==================== 编码参数（轻量优化） ====================
"-c:v", codec_v, # libx264（板子无硬件加速）
"-preset", "ultrafast", # 关键：极大降低 CPU 负载（比 veryfast 更快）
"-tune", "zerolatency", # 低延迟
"-profile:v", "high",
"-b:v", "5200k",
"-maxrate", "5800k",
"-bufsize", "10400k",
"-g", "60",
"-keyint_min", "60",
"-b:v", "2600k", # 720p 推荐比特率，清晰又省资源
"-maxrate", "3000k",
"-bufsize", "6000k",
"-g", "60", # GOP = 2 秒（30fps 时每 60 帧一个 I 帧）
"-keyint_min", "30",
"-r", "30",
"-vsync", "cfr",
"-bf", "0",
@@ -1911,7 +1977,7 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
"-x264-params", "force-cfr=1:scenecut=0:open_gop=0:sync-lookahead=0",
"-pix_fmt", "yuv420p",
# ==================== 音频 ====================
# ==================== 音频（保持不变） ====================
"-c:a", "aac",
"-b:a", "128k",
"-ar", "44100",
@@ -1922,8 +1988,8 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
"-flags", "+global_header",
"-flvflags", "no_duration_filesize",
"-f", "flv", # 格式必须是 flv，ffplay 读取最稳定
"pipe:1" # 直接输出到标准输出（管道），供 ffplay 读取
"-f", "flv",
"pipe:1"
]
# ---- 单层重试循环（清晰可控） ----