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mpv断线重启

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2025-12-30 06:28:06 +00:00
parent 8953e2f4d4
commit d4158e7f1a
2 changed files with 73 additions and 101 deletions
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165
main.py
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@@ -1623,11 +1623,12 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
else:
# ====================== 抖音 → HDMI 转播（mpv 低延迟 + 稳定重连 + 完整下播检测） ======================
# ====================== 抖音 → HDMI 转播（FIFO + mpv 常驻 + 超强稳定重连 + 完整下播检测） ======================
import queue
import unicodedata
import platform
import traceback
# import os
# import datetime
class StreamEnded(Exception):
"""主播真实下播时抛出，用于彻底退出循环"""
@@ -1700,7 +1701,7 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
stream_title = sanitize_title(f"{anchor_name}{('_' + _clean_title) if _clean_title else ''}_{timestamp_str}")
print(f"[INFO] {rec_info} 开始转播到 HDMI: {stream_title}")
# 编码参数（全志 A733 无 NVIDIA 硬件加速，使用 ultrafast 软件编码降低 CPU 负载）
# 编码参数保持原样
codec_v = "libx264"
preset_v = "ultrafast"
tune_param = ["-tune", "zerolatency"]
@@ -1711,25 +1712,39 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
"Origin: https://live.douyin.com\r\n"
)
# ====================== mpv 命令（DRM 直驱 HDMI + 硬件解码 + 极致低延迟） ======================
# ====================== FIFO 路径 ======================
FIFO_PATH = "/tmp/douyin_hdmi.fifo"
if not os.path.exists(FIFO_PATH):
try:
os.mkfifo(FIFO_PATH)
print(f"[INFO] 创建 FIFO 文件: {FIFO_PATH}")
except Exception as e:
print(f"[ERROR] 创建 FIFO 失败: {e}")
# 如果创建失败，继续尝试使用（某些系统可能已存在）
# ====================== mpv 命令（常驻） ======================
mpv_cmd = [
"mpv",
"-", # 从管道读取 FLV
"--vo=drm", # DRM 直接驱动 HDMI（无桌面环境最佳）
"--hwdec=v4l2m2m", # Allwinner VPU 硬件解码 H.264（大幅降低 CPU）
FIFO_PATH,
"--vo=drm",
"--hwdec=v4l2m2m",
"--profile=low-latency",
"--no-cache",
"--untimed",
"--framedrop=vo",
"--video-sync=display-resample",
"--cache=yes",
"--cache-secs=20",
"--demuxer-lavf-format=flv",
"--demuxer-lavf-o=fflags=+nobuffer",
"--untimed",
"--framedrop=decoder",
"--video-sync=display-resample",
"--quiet",
"--loop-file=no",
"--no-input-default-bindings",
"--vf=transpose=2,colorspace=all=bt709:iall=bt709,"
"eq=gamma_r=0.95:gamma_g=1.0:gamma_b=1.05:"
"brightness=0.03:saturation=0.85:contrast=1.05"
]
# ====================== FFmpeg 命令（720p 轻量转码） ======================
# ====================== FFmpeg 命令（输出到 FIFO） ======================
ffmpeg_command = [
"ffmpeg",
"-y",
@@ -1741,7 +1756,8 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
"-reconnect", "1",
"-reconnect_at_eof", "1",
"-reconnect_streamed", "1",
"-reconnect_delay_max", "10",
"-reconnect_delay_max", "15",
"-timeout", "30000000",
"-fflags", "+genpts+discardcorrupt+nobuffer+flush_packets",
"-flags", "low_delay",
"-err_detect", "ignore_err",
@@ -1749,7 +1765,6 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
"-headers", douyin_headers,
"-i", real_url,
# 720p 竖屏处理
"-vf", "fps=30,scale=720:1280:force_original_aspect_ratio=decrease:flags=lanczos,"
"pad=720:1280:(ow-iw)/2:(oh-ih)/2:black",
@@ -1777,53 +1792,41 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
"-flags", "+global_header",
"-flvflags", "no_duration_filesize",
"-max_muxing_queue_size", "1024", # 移到输出选项末尾，防止 Broken pipe
"-max_muxing_queue_size", "1024",
"-f", "flv",
"pipe:1"
FIFO_PATH
]
# ====================== 主循环：重连 + 下播检测 ======================
# ====================== 主循环 ======================
proc = None
mpv_proc = None
stderr_q = None
reader_t = None
retry_delay = INITIAL_RETRY_DELAY
try:
# 启动 mpv（常驻，只启动一次）
if mpv_proc is None or (mpv_proc.poll() is not None):
print(f"[INFO][{datetime.datetime.now():%H:%M:%S}] 启动 mpv 常驻播放 HDMI (FIFO: {FIFO_PATH})")
mpv_proc = subprocess.Popen(
mpv_cmd,
stdin=subprocess.DEVNULL,
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL
)
while True:
try:
if retry_delay > INITIAL_RETRY_DELAY:
print(f"[WARN] 防风控等待 {retry_delay} 秒后重连抖音源...")
print(f"[WARN] 等待 {retry_delay} 秒后重连抖音源...")
time.sleep(retry_delay)
retry_delay = min(retry_delay * 2, MAX_RETRY_DELAY)
# 清理旧 mpv（先关闭 stdin，避免 ffmpeg 写 Broken pipe）
if mpv_proc and mpv_proc.poll() is None:
try:
mpv_proc.stdin.close()
mpv_proc.wait(timeout=5)
except:
mpv_proc.terminate()
mpv_proc = None
# 清理旧 ffmpeg
cleanup_proc(proc)
stderr_q = queue.Queue()
print(f"[INFO][{datetime.datetime.now():%H:%M:%S}] 启动抖音拉流 → HDMI 全屏显示 (mpv)")
# 先启动 mpv
mpv_proc = subprocess.Popen(
mpv_cmd,
stdin=subprocess.PIPE,
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL
)
# 再启动 ffmpeg，输出到 mpv
print(f"[INFO][{datetime.datetime.now():%H:%M:%S}] 启动 FFmpeg 拉流 → FIFO → mpv")
proc = subprocess.Popen(
ffmpeg_command,
stdin=subprocess.DEVNULL,
stdout=mpv_proc.stdin,
stdout=subprocess.DEVNULL,
stderr=subprocess.PIPE,
text=True,
bufsize=1,
@@ -1831,76 +1834,74 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
)
proc.last_out_ts = time.time()
# 启动 stderr 读取线程
stderr_q = queue.Queue()
reader_t = threading.Thread(target=_stderr_reader_thread, args=(proc, stderr_q))
reader_t.daemon = True
reader_t.start()
start_time = last_frame_time = time.time()
# 监控循环：检测下播、卡顿、重连
while True:
try:
line = stderr_q.get(timeout=STDERR_QUEUE_TIMEOUT)
except queue.Empty:
# 长时间无日志 → 僵死，重启
if time.time() - proc.last_out_ts > STALE_OUTPUT_SECONDS:
print("[WARN] FFmpeg 长时间无输出，强制重启进程")
cleanup_proc(proc)
if mpv_proc:
try:
mpv_proc.stdin.close()
except:
pass
mpv_proc = None
print("[WARN] FFmpeg 长时间无输出，强制重启 FFmpeg")
break
continue
if line is None: # reader 线程结束
if proc.poll() is not None:
break
continue
if line is None:
break
line = line.strip()
if line.startswith("__ERR__READER__"):
print(f"[ERROR] stderr 读取异常: {line}")
continue
if line:
proc.last_out_ts = time.time()
print(f"[FFmpeg] {line}")
line_lower = line.lower()
# 检测明确下播关键字 → 真实下播
if any(kw in line_lower for kw in END_KEYWORDS):
print("[INFO] 检测到主播下播关键字，停止转播")
cleanup_proc(proc)
raise StreamEnded()
# 更新最近帧时间
if re.search(r'frame=\s*\d+', line_lower) or "fps=" in line_lower:
last_frame_time = time.time()
retry_delay = INITIAL_RETRY_DELAY
# 长时间无新帧 → 判定下播
if time.time() - start_time > START_CHECK_AFTER:
if time.time() - last_frame_time > NO_FRAME_TIMEOUT:
print(f"[INFO] {NO_FRAME_TIMEOUT}s 无新帧，判定主播已下播")
cleanup_proc(proc)
raise StreamEnded()
except StreamEnded:
print(f"[INFO] 主播已下播，停止 HDMI 转播 → {record_name}")
break
raise
except Exception as e:
print(f"[ERROR] 转播过程异常: {e}")
print(f"[ERROR] FFmpeg 运行异常: {e}")
traceback.print_exc()
retry_delay = min(retry_delay * 2, MAX_RETRY_DELAY)
continue
# ====================== 正常结束清理 ======================
except StreamEnded:
print(f"[INFO] 主播已下播，停止 HDMI 转播 → {record_name}")
except KeyboardInterrupt:
print("[INFO] 用户手动中断 (Ctrl+C)")
except Exception as e:
print(f"[FATAL] HDMI 转播异常: {e}")
traceback.print_exc()
finally:
cleanup_proc(proc)
if mpv_proc and mpv_proc.poll() is None:
print("[INFO] 终止 mpv 进程...")
mpv_proc.terminate()
try:
mpv_proc.wait(timeout=5)
except:
mpv_proc.kill()
try:
recording.discard(record_name)
recording_time_list.pop(record_name, None)
@@ -1913,28 +1914,6 @@ def start_record(url_data: tuple, count_variable: int = -1) -> None:
pass
color_obj.print_colored(f"[{record_name}] HDMI 转播已彻底停止并清理完毕\n", color_obj.GREEN)
return
except Exception as e:
print(f"[FATAL] HDMI 转播最外层异常: {e}")
traceback.print_exc()
cleanup_proc(proc)
if mpv_proc and mpv_proc.poll() is None:
try:
mpv_proc.stdin.close()
except:
mpv_proc.terminate()
try:
recording.discard(record_name)
recording_time_list.pop(record_name, None)
if record_url in running_list:
running_list.remove(record_url)
monitoring = max(0, monitoring - 1)
clear_record_info(record_name, record_url)
except:
pass
color_obj.print_colored(f"[{record_name}] HDMI 转播异常退出但已清理\n", color_obj.RED)
return
count_time = time.time()