diff --git a/utils/log.py b/utils/log.py
new file mode 100644
index 0000000..a531729
--- /dev/null
+++ b/utils/log.py
@@ -0,0 +1,119 @@
+import logging
+import os
+import sys
+import redis
+from loguru import logger as logurulogger
+import redis.exceptions
+from app.config import config
+import json
+from redis.retry import Retry
+from redis.backoff import ExponentialBackoff
+
+LOG_FORMAT = (
+    "<level>{level: <8}</level> "
+    "{process.name} | "  # 进程名
+    "{thread.name}  | "
+    "<green>{time:YYYY-MM-DD HH:mm:ss.SSS}</green> - "
+    "<blue>{process}</blue> "
+    "<cyan>{module}</cyan>.<cyan>{function}</cyan>:<cyan>{line}</cyan> - "
+    "<level>{message}</level>"
+)
+LOG_NAME = ["uvicorn", "uvicorn.access", "uvicorn.error", "flask"]
+
+# 配置 Redis 连接池
+redis_pool = redis.ConnectionPool(
+    host=config.LOG_REDIS_HOST,  # Redis 服务器地址
+    port=config.LOG_REDIS_PORT,  # Redis 服务器端口
+    db=config.LOG_REDIS_DB,  # 数据库编号
+    password=config.LOG_REDIS_AUTH,  # 密码
+    max_connections=config.max_connections,  # 最大连接数
+    socket_connect_timeout=config.socket_connect_timeout,  # 连接超时时间
+    socket_timeout=config.socket_timeout,  # 等待超时时间
+)
+
+
+class InterceptHandler(logging.Handler):
+    def emit(self, record):
+        try:
+            level = logurulogger.level(record.levelname).name
+        except AttributeError:
+            level = logging._levelToName[record.levelno]
+
+        frame, depth = logging.currentframe(), 2
+        while frame.f_code.co_filename == logging.__file__:
+            frame = frame.f_back
+            depth += 1
+
+        logurulogger.opt(depth=depth, exception=record.exc_info).log(
+            level, record.getMessage()
+        )
+
+class Logging:
+    """自定义日志"""
+
+    def __init__(self):
+        self.log_path = "logs"
+        self._connect_redis()
+        if config.IS_LOCAL:
+            os.makedirs(self.log_path, exist_ok=True)
+        self._initlogger()
+        self._reset_log_handler()
+    
+    def _connect_redis(self):
+        retry = Retry(ExponentialBackoff(), 3)  # 重试3次，指数退避
+        self.redis_client = redis.Redis(connection_pool=redis_pool,retry=retry)  # 使用连接池
+
+    def _initlogger(self):
+        """初始化loguru配置"""
+        logurulogger.remove()
+        if config.IS_LOCAL:
+            logurulogger.add(
+                os.path.join(self.log_path, "error.log.{time:YYYY-MM-DD}"),
+                format=LOG_FORMAT,
+                level=logging.ERROR,
+                rotation="00:00",
+                retention="1 week",
+                backtrace=True,
+                diagnose=True,
+                enqueue=True
+            )
+            logurulogger.add(
+                os.path.join(self.log_path, "info.log.{time:YYYY-MM-DD}"),
+                format=LOG_FORMAT,
+                level=logging.INFO,
+                rotation="00:00",
+                retention="1 week",
+                enqueue=True
+            )
+        logurulogger.add(
+            sys.stdout,
+            format=LOG_FORMAT,
+            level=logging.DEBUG,
+            colorize=True,
+        )
+
+        logurulogger.add(self._log_to_redis, level="INFO", format=LOG_FORMAT)
+        self.logger = logurulogger
+        
+
+    def _log_to_redis(self, message):
+        """将日志写入 Redis 列表"""
+        try:
+            self.redis_client.rpush(f"nlp.logger.{config.env_version}.log", json.dumps({"message": message}))
+        except redis.exceptions.ConnectionError as e:
+            logger.error(f"write {message} Redis connection error: {e}")
+        except redis.exceptions.TimeoutError as e:
+            logger.error(f"write {message} Redis operation timed out: {e}")
+        except Exception as e:
+            logger.error(f"write {message} Unexpected error: {e}")
+
+    def _reset_log_handler(self):
+        for log in LOG_NAME:
+            logger = logging.getLogger(log)
+            logger.handlers = [InterceptHandler()]
+
+    def getlogger(self):
+        return self.logger 
+
+logger = Logging().getlogger()
+
diff --git a/utils/loop_frame_tool.py b/utils/loop_frame_tool.py
new file mode 100644
index 0000000..9343cab
--- /dev/null
+++ b/utils/loop_frame_tool.py
@@ -0,0 +1,318 @@
+from utils.log import logger
+
+
+def play_in_loop_v2(
+    segments,
+    startfrom,
+    batch_num,
+    last_direction,
+    is_silent,
+    is_silent_,
+    first_speak,
+    last_speak,
+):
+    """
+        batch_num: 初始和结束，每一帧都这么判断
+        1、静默时，在静默段循环， 左边界正向，右边界反向, 根据上一次方向和位置，给出新的方向和位置
+        2、静默转说话： 就近到说话段，pre_falg, post_flag, 都为true  VS 其中一个为true
+        3、说话转静默： 动作段播完，再进入静默(如果还在持续说话，静默段不循环)
+        4、在整个视频左端点： 开始端只能正向，静默时循环，说话时走2
+        5、在整个视频右端点： 开始时只能反向，静默时循环，说话时走2
+        6、根据方向获取batch_num 数量的视频帧，return batch_idxes, current_direction
+    Args:
+        segments:  循环帧配置 [[st, ed, True], ...]
+        startfrom: cur_pos
+        batch_num: 5
+        last_direction: 0反向1正向
+        is_silent: 0说话态1动作态
+        is_silent_: 目前不明确，后面可能废弃
+        first_speak: 记录是不是第一次讲话
+        last_speak: 记录是不是讲话结束那一刻
+    """
+    frames = []
+    cur_pos = startfrom
+    cur_direction = last_direction
+    is_first_speak_frame = first_speak
+    is_last_speak_frame = True if last_speak and batch_num == 1 else False
+    while batch_num != 0:
+        # 获取当前帧的所在子分割区间
+        sub_seg_idx = subseg_judge(cur_pos, segments)
+        # 获取移动方向
+        next_direction, next_pos = get_next_direction(
+            segments,
+            cur_pos,
+            cur_direction,
+            is_silent,
+            sub_seg_idx,
+            is_first_speak_frame,
+            is_last_speak_frame,
+        )
+        # 获取指定方向的帧
+        next_pos = get_next_frame(next_pos, next_direction)
+        frames.append(next_pos)
+        batch_num -= 1
+        is_first_speak_frame = (
+            True if first_speak and batch_num == config.batch_size else False
+        )
+        is_last_speak_frame = True if last_speak and batch_num == 1 else False
+
+        cur_direction = next_direction
+        cur_pos = next_pos
+    return frames, next_direction
+
+
+def subseg_judge(cur_pos, segments):
+    for idx, frame_seg in enumerate(segments):
+        if cur_pos >= frame_seg[0] and cur_pos <= frame_seg[1]:
+            return idx
+    if cur_pos == 0:
+        return 0
+
+def get_next_direction(
+    segments,
+    cur_pos,
+    cur_direction,
+    is_silent,
+    sub_seg_idx,
+    is_first_speak_frame: bool = False,
+    is_last_speak_frame: bool = False,
+):
+    """
+        3.3.0 循环帧需求，想尽快走到预期状态
+        if 动作段：
+            if 开始说话：
+                if 边界：
+                    if 正向：
+                        pass
+                    else:
+                        pass
+                else:
+                    if 正向：
+                        pass
+                    else:
+                        pass
+            elif 静默:
+                同上
+            elif 说话中：
+                同上
+            elif 说话结束：
+                同上
+        elif 静默段：
+            同上
+    Args:
+        is_first_speak_frame: 开始说话flag
+        is_last_speak_frame： 说话结束flag
+    """
+    left, right, loop_flag = segments[sub_seg_idx]
+    if loop_flag:
+        if is_silent == 1:
+            next_direct, next_pos = pure_silent(
+                segments, left, right, cur_pos, cur_direction, sub_seg_idx
+            )
+            logger.debug(
+                f"cur_pos：{cur_pos}, next_direct:{next_direct}, is_first_speak_frame:{is_first_speak_frame}"
+            )
+        elif is_silent == 0:
+            next_direct, next_pos = silent2action(
+                segments,
+                left,
+                right,
+                cur_pos,
+                cur_direction,
+                sub_seg_idx,
+                is_first_speak_frame,
+            )
+            logger.debug(
+                f"cur_pos:{cur_pos}, next_direct:{next_direct}, is_first_speak_frame{is_first_speak_frame}"
+            )
+    else:
+        if is_silent == 1:
+            next_direct, next_pos = action2silent(
+                segments,
+                left,
+                right,
+                cur_pos,
+                cur_direction,
+                sub_seg_idx,
+                is_last_speak_frame,
+            )
+            logger.debug(
+                f"cur_pos{cur_pos}， next_direct:{next_direct},is_first_speak_frame{is_first_speak_frame},is_last_speak_frame:{is_last_speak_frame}"
+            )
+        elif is_silent == 0:
+            next_direct, next_pos = pure_action(
+                segments,
+                left,
+                right,
+                cur_pos,
+                cur_direction,
+                sub_seg_idx,
+                is_last_speak_frame,
+            )
+            logger.debug(
+                f"cur_pos：{cur_pos}, next_direct:{next_direct},is_first_speak_frame{is_first_speak_frame}, is_last_speak_frame:{is_last_speak_frame}"
+            )
+    return next_direct, next_pos
+
+def get_next_frame(cur_pos, cur_direction):
+    """根据当前帧和方向，获取下一帧，这里应该保证方向上的帧是一定能取到的
+    不需要再做额外的边界判断
+    """
+    # 正向
+    if cur_direction == 1:
+        return cur_pos + 1
+    # 反向
+    elif cur_direction == 0:
+        return cur_pos - 1
+
+def pure_silent(segments, left, right, cur_pos, cur_direction, sub_seg_idx):
+    """
+        loop_flag == True and is_silent==1
+        whether border
+        whether forward
+    Return:
+        next_direction
+    """
+    # 左边界正向，右边界反向
+    if cur_pos == segments[0][0]:
+        return 1, cur_pos
+    if cur_pos == segments[-1][1]:
+        return 0, cur_pos
+    # 右边界，反向
+    if cur_pos == right:
+        return 0, cur_pos
+    # 左边界，正向
+    if cur_pos == left:
+        return 1, cur_pos
+    # 非边界，之前正向，则继续正向，否则反向
+    if cur_pos > left and cur_direction == 1:
+        return 1, cur_pos
+    else:
+        return 0, cur_pos
+
+
+def pure_action(
+    segments, left, right, cur_pos, cur_direction, sub_seg_idx, is_last_speak_frame
+):
+    """
+        loop_flag ==False and is_silent == 0
+        动作播完，正向到静默段 (存在跳段行为)
+        whether border
+        whether forward # 正播反播
+    Args:
+        is_last_speak_frame: 最后说话结束时刻
+    Return: next_direction
+    """
+    if cur_pos == segments[0][0]:
+        return 1, cur_pos
+    if cur_pos == segments[-1][1]:
+        return 0, cur_pos
+
+    if is_last_speak_frame:
+        # 动作段在末尾，向前找静默
+        if sub_seg_idx == len(segments) - 1:
+            return 0, cur_pos
+        # 动作段在开始， 向后
+        if sub_seg_idx == 0:
+            return 1, cur_pos
+        # 动作段在中间，就近原则
+        mid = left + (right - left + 1) // 2
+        # 就近原则优先
+        if cur_pos < mid:
+            return 0, cur_pos
+        else:
+            return 1, cur_pos
+
+    else:
+        # 其他情况，播放方向一致
+        if cur_direction == 1:
+            return 1, cur_pos
+        else:
+            return 0, cur_pos
+
+
+def silent2action(
+    segments,
+    left,
+    right,
+    cur_pos,
+    cur_direction,
+    sub_seg_idx,
+    is_first_speak_frame: bool = False,
+):
+    """
+        在静默区间但是在讲话
+        loop_flag=True and is_silent == 0
+        whether border
+        whether forward
+
+    Return: next_direction
+    """
+    # 向最近的动作段移动， 如果左面没有动作段
+    # TODO: 确认下面逻辑是否正确
+    if (
+        cur_pos == segments[0][0]
+    ):  # 如果发生过跳跃，新段无论是不是动作段，仍然都向后执行
+        return 1, cur_pos
+    if cur_pos == segments[-1][1]:
+        return 0, cur_pos
+    # 在静默左边界处，且仍在讲话
+    if cur_pos == left:
+        if cur_direction == 1:
+            return 1, cur_pos
+        else:
+            return 0, cur_pos
+    # 在静默右边界处，且仍在讲话
+    elif cur_pos == right:
+        if cur_direction == 1:
+            return 1, cur_pos
+        else:
+            return 0, cur_pos
+    else:
+        mid = left + (right - left + 1) // 2
+        # ！！就近原则只对第一次说话有效，其他情况遵循上一次状态
+        if is_first_speak_frame:
+            # 如果第一段
+            if sub_seg_idx == 0 and segments[0][2]:
+                return 1, cur_pos
+            # 如果最后一段
+            elif sub_seg_idx == len(segments) - 1 and segments[-1][2]:
+                return 0, cur_pos
+
+            if cur_pos < mid:
+                return 0, cur_pos
+            else:
+                return 1, cur_pos
+        else:
+            if cur_direction == 1:
+                return 1, cur_pos
+            elif cur_direction == 0:
+                return 0, cur_pos
+
+
+def action2silent(
+    segments, left, right, cur_pos, cur_direction, sub_seg_idx, is_last_speak_frame
+):
+    """
+        loop_flag=False and is_silent==1
+        whether border
+    Return: next_direction
+    """
+    if cur_pos == segments[0][0]:
+        return 1, cur_pos
+    if cur_pos == segments[-1][1]:
+        return 0, cur_pos
+    # 动作段，说话结束转静默情况下，就近原则，进入静默
+    if is_last_speak_frame:
+        mid = left + (right - left + 1) // 2
+        if cur_pos < mid:
+            return 0, cur_pos
+        else:
+            return 1, cur_pos
+
+    else:
+        if cur_direction == 1:
+            return 1, cur_pos
+        else:
+            return 0, cur_pos
+