319 lines
9.6 KiB
Python
319 lines
9.6 KiB
Python
from utils.log import logger
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def play_in_loop_v2(
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segments,
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startfrom,
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batch_num,
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last_direction,
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is_silent,
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is_silent_,
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first_speak,
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last_speak,
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):
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"""
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batch_num: 初始和结束，每一帧都这么判断
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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
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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
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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)
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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
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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
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6、根据方向获取batch_num 数量的视频帧，return batch_idxes, current_direction
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Args:
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segments: 循环帧配置 [[st, ed, True], ...]
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startfrom: cur_pos
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batch_num: 5
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last_direction: 0反向1正向
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is_silent: 0说话态1动作态
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is_silent_: 目前不明确，后面可能废弃
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first_speak: 记录是不是第一次讲话
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last_speak: 记录是不是讲话结束那一刻
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"""
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frames = []
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cur_pos = startfrom
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cur_direction = last_direction
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is_first_speak_frame = first_speak
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is_last_speak_frame = True if last_speak and batch_num == 1 else False
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while batch_num != 0:
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# 获取当前帧的所在子分割区间
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sub_seg_idx = subseg_judge(cur_pos, segments)
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# 获取移动方向
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next_direction, next_pos = get_next_direction(
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segments,
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cur_pos,
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cur_direction,
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is_silent,
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sub_seg_idx,
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is_first_speak_frame,
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is_last_speak_frame,
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)
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# 获取指定方向的帧
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next_pos = get_next_frame(next_pos, next_direction)
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frames.append(next_pos)
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batch_num -= 1
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is_first_speak_frame = (
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True if first_speak and batch_num == config.batch_size else False
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)
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is_last_speak_frame = True if last_speak and batch_num == 1 else False
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cur_direction = next_direction
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cur_pos = next_pos
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return frames, next_direction
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def subseg_judge(cur_pos, segments):
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for idx, frame_seg in enumerate(segments):
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if cur_pos >= frame_seg[0] and cur_pos <= frame_seg[1]:
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return idx
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if cur_pos == 0:
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return 0
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def get_next_direction(
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segments,
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cur_pos,
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cur_direction,
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is_silent,
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sub_seg_idx,
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is_first_speak_frame: bool = False,
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is_last_speak_frame: bool = False,
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):
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"""
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3.3.0 循环帧需求，想尽快走到预期状态
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if 动作段：
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if 开始说话：
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if 边界：
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if 正向：
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pass
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else:
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pass
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else:
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if 正向：
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pass
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else:
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pass
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elif 静默:
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同上
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elif 说话中：
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同上
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elif 说话结束：
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同上
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elif 静默段：
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同上
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Args:
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is_first_speak_frame: 开始说话flag
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is_last_speak_frame： 说话结束flag
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"""
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left, right, loop_flag = segments[sub_seg_idx]
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if loop_flag:
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if is_silent == 1:
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next_direct, next_pos = pure_silent(
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segments, left, right, cur_pos, cur_direction, sub_seg_idx
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)
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logger.debug(
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f"cur_pos：{cur_pos}, next_direct:{next_direct}, is_first_speak_frame:{is_first_speak_frame}"
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)
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elif is_silent == 0:
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next_direct, next_pos = silent2action(
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segments,
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left,
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right,
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cur_pos,
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cur_direction,
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sub_seg_idx,
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is_first_speak_frame,
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)
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logger.debug(
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f"cur_pos:{cur_pos}, next_direct:{next_direct}, is_first_speak_frame{is_first_speak_frame}"
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)
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else:
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if is_silent == 1:
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next_direct, next_pos = action2silent(
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segments,
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left,
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right,
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cur_pos,
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cur_direction,
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sub_seg_idx,
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is_last_speak_frame,
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)
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logger.debug(
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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}"
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)
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elif is_silent == 0:
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next_direct, next_pos = pure_action(
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segments,
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left,
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right,
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cur_pos,
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cur_direction,
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sub_seg_idx,
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is_last_speak_frame,
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)
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logger.debug(
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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}"
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)
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return next_direct, next_pos
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def get_next_frame(cur_pos, cur_direction):
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"""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
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不需要再做额外的边界判断
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"""
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# 正向
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if cur_direction == 1:
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return cur_pos + 1
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# 反向
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elif cur_direction == 0:
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return cur_pos - 1
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def pure_silent(segments, left, right, cur_pos, cur_direction, sub_seg_idx):
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"""
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loop_flag == True and is_silent==1
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whether border
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whether forward
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Return:
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next_direction
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"""
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# 左边界正向，右边界反向
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if cur_pos == segments[0][0]:
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return 1, cur_pos
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if cur_pos == segments[-1][1]:
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return 0, cur_pos
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# 右边界，反向
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if cur_pos == right:
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return 0, cur_pos
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# 左边界，正向
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if cur_pos == left:
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return 1, cur_pos
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# 非边界，之前正向，则继续正向，否则反向
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if cur_pos > left and cur_direction == 1:
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return 1, cur_pos
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else:
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return 0, cur_pos
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def pure_action(
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segments, left, right, cur_pos, cur_direction, sub_seg_idx, is_last_speak_frame
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):
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"""
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loop_flag ==False and is_silent == 0
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动作播完，正向到静默段 (存在跳段行为)
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whether border
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whether forward # 正播反播
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Args:
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is_last_speak_frame: 最后说话结束时刻
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Return: next_direction
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"""
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if cur_pos == segments[0][0]:
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return 1, cur_pos
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if cur_pos == segments[-1][1]:
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return 0, cur_pos
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if is_last_speak_frame:
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# 动作段在末尾，向前找静默
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if sub_seg_idx == len(segments) - 1:
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return 0, cur_pos
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# 动作段在开始， 向后
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if sub_seg_idx == 0:
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return 1, cur_pos
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# 动作段在中间，就近原则
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mid = left + (right - left + 1) // 2
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# 就近原则优先
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if cur_pos < mid:
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return 0, cur_pos
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else:
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return 1, cur_pos
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else:
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# 其他情况，播放方向一致
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if cur_direction == 1:
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return 1, cur_pos
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else:
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return 0, cur_pos
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def silent2action(
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segments,
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left,
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right,
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cur_pos,
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cur_direction,
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sub_seg_idx,
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is_first_speak_frame: bool = False,
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):
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"""
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在静默区间但是在讲话
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loop_flag=True and is_silent == 0
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whether border
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whether forward
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Return: next_direction
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"""
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# 向最近的动作段移动， 如果左面没有动作段
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# TODO: 确认下面逻辑是否正确
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if (
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cur_pos == segments[0][0]
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): # 如果发生过跳跃，新段无论是不是动作段，仍然都向后执行
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return 1, cur_pos
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if cur_pos == segments[-1][1]:
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return 0, cur_pos
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# 在静默左边界处，且仍在讲话
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if cur_pos == left:
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if cur_direction == 1:
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return 1, cur_pos
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else:
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return 0, cur_pos
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# 在静默右边界处，且仍在讲话
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elif cur_pos == right:
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if cur_direction == 1:
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return 1, cur_pos
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else:
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return 0, cur_pos
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else:
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mid = left + (right - left + 1) // 2
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# ！！就近原则只对第一次说话有效，其他情况遵循上一次状态
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if is_first_speak_frame:
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# 如果第一段
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if sub_seg_idx == 0 and segments[0][2]:
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return 1, cur_pos
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# 如果最后一段
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elif sub_seg_idx == len(segments) - 1 and segments[-1][2]:
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return 0, cur_pos
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if cur_pos < mid:
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return 0, cur_pos
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else:
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return 1, cur_pos
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else:
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if cur_direction == 1:
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return 1, cur_pos
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elif cur_direction == 0:
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return 0, cur_pos
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def action2silent(
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segments, left, right, cur_pos, cur_direction, sub_seg_idx, is_last_speak_frame
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):
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"""
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loop_flag=False and is_silent==1
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whether border
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Return: next_direction
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"""
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if cur_pos == segments[0][0]:
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return 1, cur_pos
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if cur_pos == segments[-1][1]:
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return 0, cur_pos
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# 动作段，说话结束转静默情况下，就近原则，进入静默
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if is_last_speak_frame:
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mid = left + (right - left + 1) // 2
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if cur_pos < mid:
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return 0, cur_pos
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else:
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return 1, cur_pos
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else:
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if cur_direction == 1:
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return 1, cur_pos
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else:
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return 0, cur_pos
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