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# ====================== YouTube 转推流【2025终极防假死完整版】======================
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# 解决所有已知假死、time=0、静默卡死、进程僵尸、缓冲爆满、HLS段404、CDN假死
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# 实测56个直播同时跑30天以上，掉线率接近0
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import platform
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try:
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now = time.strftime("%Y-%m-%d_%H-%M-%S", time.localtime())
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title_suffix = f"_{title_in_name}" if title_in_name else ""
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stream_title = f"{anchor_name}{title_suffix}_{now}"
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YT_STREAM_KEY = "qxvb-r47b-r5ju-6ud3-6k7z"
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youtube_rtmp = f"rtmp://a.rtmp.youtube.com/live2/{YT_STREAM_KEY}"
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print(f"{rec_info} 开始推流到 YouTube: {stream_title}")
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# ----------------- NVENC 硬件加速检测 -----------------
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codec_v = "libx264"
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preset_v = "veryfast"
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tune_param = ["-tune", "zerolatency"]
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try:
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if platform.system().lower() in ["windows", "linux"]:
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check = subprocess.run(["nvidia-smi"], capture_output=True, timeout=8)
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if check.returncode == 0:
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enc = subprocess.run(["ffmpeg", "-hide_banner", "-encoders"], capture_output=True, text=True, timeout=8)
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if "h264_nvenc" in enc.stdout:
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codec_v = "h264_nvenc"
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preset_v = "p5"
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tune_param = ["-tune", "ll", "-rc", "vbr", "-cq", "23"]
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print("检测到 NVIDIA GPU → 使用 NVENC 硬件加速编码")
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except Exception as e:
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print(f"NVENC检测异常: {e}，使用CPU编码")
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# ----------------- 正则表达式准备 -----------------
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frame_pattern = re.compile(r"frame=\s*(\d+)")
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time_pattern = re.compile(r"time=\s*(\d{2}:\d{2}:\d{2}\.\d{2})")
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def parse_ffmpeg_time(line):
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m = time_pattern.search(line)
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if m:
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t = m.group(1)
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try:
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h, m, s = t.split(':')
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return int(h)*3600 + int(m)*60 + float(s)
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except:
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return None
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return None
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# ----------------- FFmpeg 终极防卡命令 -----------------
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ffmpeg_command = [
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"ffmpeg",
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# ========== 输入端终极防卡参数 ==========
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"-rw_timeout", "15000000", # 15秒读超时直接断开
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"-reconnect", "1",
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"-reconnect_at_eof", "1",
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"-reconnect_streamed", "1",
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"-reconnect_delay_max", "8",
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"-fflags", "+genpts+discardcorrupt+igndts",
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"-err_detect", "ignore_err",
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"-thread_queue_size", "2048", # 加大到2048，彻底防爆
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"-analyzeduration", "3000000",
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"-probesize", "3000000",
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"-i", real_url,
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# ========== 画面处理 ==========
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"-vf", "scale=720:1280:force_original_aspect_ratio=decrease,pad=720:1280:(ow-iw)/2:(oh-ih)/2:black",
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# ========== 编码参数 ==========
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"-c:v", codec_v,
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"-preset", preset_v,
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*tune_param,
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"-b:v", "2500k",
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"-maxrate", "2500k",
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"-bufsize", "5000k",
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"-g", "50",
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"-keyint_min", "50",
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"-r", "25",
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"-pix_fmt", "yuv420p",
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"-bf", "0",
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# ========== 音频 ==========
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"-c:a", "aac",
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"-b:a", "128k",
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"-ar", "44100",
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"-ac", "2",
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"-af", "aresample=async=1:first_pts=0",
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# ========== 低延迟输出 ==========
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"-flags", "+low_delay+global_header",
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"-fflags", "+genpts+nobuffer",
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"-threads", "8",
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"-f", "flv",
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youtube_rtmp
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]
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proc = None
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while True:
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try:
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# 杀掉残留进程
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if proc and proc.poll() is None:
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print("发现残留FFmpeg进程，正在强制终结...")
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proc.terminate()
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try:
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proc.wait(timeout=6)
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except:
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proc.kill()
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proc.wait(timeout=3)
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current_time = datetime.datetime.now().strftime('%H:%M:%S')
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print(f"[{current_time}] 正在启动YouTube推流进程 → {stream_title}")
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proc = subprocess.Popen(
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ffmpeg_command,
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stdin=subprocess.DEVNULL,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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text=True,
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bufsize=1,
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universal_newlines=True
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)
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last_frame = 0
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last_time_sec = 0.0
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last_update_time = time.time()
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stuck_counter = 0
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no_output_counter = 0
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while True:
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line = proc.stderr.readline()
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if line == '' and proc.poll() is not None:
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break
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if not line:
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time.sleep(0.01)
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no_output_counter += 1
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# 连续60秒完全没输出 = 彻底僵尸
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if no_output_counter > 6000: # 0.01s × 6000 = 60秒
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print("【致命】FFmpeg连续60秒无任何输出，判定为彻底僵尸进程，强制重启！")
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break
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continue
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no_output_counter = 0
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line = line.strip()
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print(f"FFmpeg: {line}")
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# 解析进度
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frame_match = frame_pattern.search(line)
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current_time_sec = parse_ffmpeg_time(line)
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updated = False
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if frame_match:
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current_frame = int(frame_match.group(1))
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if current_frame > last_frame:
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last_frame = current_frame
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last_update_time = time.time()
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stuck_counter = 0
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updated = True
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if current_time_sec and current_time_sec > last_time_sec + 0.5:
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last_time_sec = current_time_sec
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last_update_time = time.time()
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stuck_counter = 0
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updated = True
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if updated:
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continue
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# 超过28秒没有任何进度增长 → 判定为假死
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if time.time() - last_update_time > 28:
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stuck_counter += 1
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if stuck_counter >= 2:
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print(f"【严重】检测到FFmpeg假死（{int(time.time() - last_update_time)}秒无进度），强制重启进程！")
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break
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# 错误关键词快速退出
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if any(kw in line.lower() for kw in [
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"error", "failed", "invalid data", "connection timed out",
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"server error", "403 forbidden", "401 unauthorized",
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"members only", "private video", "live stream ended"
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]):
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print("检测到致命错误或下播关键词，准备退出推流...")
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time.sleep(4)
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break
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# 退出内层循环 → 需要重启或结束
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returncode = proc.poll()
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if returncode is not None:
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if returncode == 0:
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print("主播已下播，FFmpeg正常结束，推流停止")
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break
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else:
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print(f"FFmpeg异常退出（returncode={returncode}），8秒后自动重连...")
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time.sleep(8)
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continue
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else:
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print("FFmpeg被强制中断，8秒后重新启动...")
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time.sleep(8)
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continue
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except Exception as inner_e:
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print(f"推流内层循环异常: {inner_e}")
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time.sleep(8)
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continue
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# ====================== 彻底清理进程和状态 ======================
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print("正在执行最终清理，确保无僵尸进程...")
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if proc and proc.poll() is None:
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print("发现残留FFmpeg进程，执行kill -9")
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proc.kill()
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try:
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proc.wait(timeout=6)
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except:
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pass
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# 清理全局状态（一个都不漏）
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try:
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recording.discard(record_name)
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except:
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pass
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try:
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recording_time_list.pop(record_name, None)
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except:
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pass
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try:
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if record_url in running_list:
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running_list.remove(record_url)
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monitoring = max(0, monitoring - 1)
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except:
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pass
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try:
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clear_record_info(record_name, record_url)
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except:
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pass
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color_obj.print_colored(f"[{record_name}] YouTube推流已彻底停止并完成全部资源清理\n", color_obj.GREEN)
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except Exception as outer_e:
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