's'

2025-12-01 18:01:58 +08:00
parent 997b147589
commit 3accbd7941
10 changed files with 1 additions and 1 deletions
--- a/backup/111
+++ b/backup/111
@@ -0,0 +1,104 @@
+  try:
+                                        if split_video_by_time:
+                                            now = time.strftime("%Y-%m-%d_%H-%M-%S", time.localtime())
+                                            print(f"{rec_info} 开始推流到 YouTube: {anchor_name}_{title_in_name}_{now}")
+
+                                            YT_STREAM_KEY = "ue78-1c3e-mr9g-14mz-9r4z"
+                                            youtube_rtmp = f"rtmp://a.rtmp.youtube.com/live2/{YT_STREAM_KEY}"
+
+                                            # ------------------------
+                                            # NVENC 检测
+                                            # ------------------------
+                                            codec_v = "libx264"
+                                            preset_v = "veryfast"
+                                            tune_param = ["-tune", "zerolatency"]
+
+                                            try:
+                                                if platform.system().lower() in ["windows", "linux"]:
+                                                    check = subprocess.run(["nvidia-smi"], capture_output=True, timeout=10)
+                                                    if check.returncode == 0:
+                                                        enc = subprocess.run(["ffmpeg", "-hide_banner", "-encoders"], 
+                                                                            capture_output=True, text=True, timeout=10)
+                                                        if "h264_nvenc" in enc.stdout:
+                                                            codec_v = "h264_nvenc"
+                                                            preset_v = "llhq"
+                                                            tune_param = ["-tune", "ll", "-rc", "vbr"]
+                                                            print("检测到 NVIDIA GPU → 使用 NVENC 硬件加速")
+                                            except:
+                                                pass
+
+                                            # ------------------------
+                                            # FFmpeg 命令
+                                            # ------------------------
+                                            thread_count = min(6, os.cpu_count() or 4)
+                                            ffmpeg_command = [
+                                                "ffmpeg",
+                                                "-re",
+                                                "-i", real_url,
+                                                "-vf", "scale=720:1280:force_original_aspect_ratio=decrease,pad=720:1280:(ow-iw)/2:(oh-ih)/2:black",
+                                                "-c:v", codec_v,
+                                                "-preset", preset_v,
+                                                *tune_param,
+                                                "-b:v", "2500k",
+                                                "-maxrate", "2500k",
+                                                "-bufsize", "5000k",
+                                                "-g", "50",
+                                                "-r", "25",
+                                                "-pix_fmt", "yuv420p",
+                                                "-bf", "0",
+                                                "-c:a", "aac",
+                                                "-b:a", "128k",
+                                                "-ar", "44100",
+                                                "-ac", "2",
+                                                "-af", "aresample=async=1:first_pts=0",
+                                                "-fflags", "+genpts+nobuffer",
+                                                "-flags", "+low_delay",
+                                                "-thread_queue_size", "512",
+                                                "-threads", str(thread_count),
+                                                "-f", "flv",
+                                                youtube_rtmp
+                                            ]
+
+                                            # ------------------------
+                                            # 永不断流逻辑
+                                            # ------------------------
+                                            proc = None
+                                            while True:
+                                                try:
+                                                    if proc and proc.poll() is None:
+                                                        proc.terminate()
+                                                        try:
+                                                            proc.wait(timeout=8)
+                                                        except:
+                                                            proc.kill()
+
+                                                    print(f"{anchor_name}_{title_in_name}_{now} → 启动 YouTube 推流...")
+                                                    proc = subprocess.Popen(
+                                                        ffmpeg_command,
+                                                        stdin=subprocess.DEVNULL,
+                                                        stdout=subprocess.DEVNULL,
+                                                        stderr=subprocess.PIPE,
+                                                        text=True
+                                                    )
+
+                                                    while True:
+                                                        line = proc.stderr.readline()
+                                                        if not line:
+                                                            break
+                                                        line = line.strip()
+                                                        if "error" in line.lower() or "warn" in line.lower():
+                                                            print(f"FFmpeg: {line}")
+                                                        if proc.poll() is not None:
+                                                            break
+
+                                                    code = proc.returncode
+                                                    if code != 0:
+                                                        print(f"FFmpeg 退出（code={code}），随机延迟后重连...")
+                                                    time.sleep(random.uniform(1, 3))
+
+                                                except Exception as e:
+                                                    print(f"启动 FFmpeg 异常: {e}")
+                                                    time.sleep(random.uniform(1, 3))
+
+                                    except Exception as e:
+                                        print(f"外层异常: {e}")