453 lines
15 KiB
Python
Executable File
453 lines
15 KiB
Python
Executable File
import sys
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import os
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import cv2
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import time
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class Marker:
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def __init__(self, opts):
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self.opts = opts
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if not os.path.exists(self.opts.video):
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raise FileNotFoundError("Video file missing!")
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self.paused = False
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self.read_next = False
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self.show_info = True
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self.show_help = False
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self.auto_step = True
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self.font = cv2.FONT_HERSHEY_SIMPLEX
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self.frame_visu = []
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self.max_res = (1280, 720)
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self.min_res = (512, None)
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try:
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self.open()
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self.calculate_res()
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self.parse_timestamps()
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self.loop()
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except Exception as e:
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exc_type, exc_obj, exc_tb = sys.exc_info()
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fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
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print(exc_type, fname, exc_tb.tb_lineno)
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raise e
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def open(self):
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self.video_reader = cv2.VideoCapture(self.opts.video)
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self.frames = int(self.video_reader.get(cv2.CAP_PROP_FRAME_COUNT))
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self.fps = self.video_reader.get(cv2.CAP_PROP_FPS)
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self.spf = 1 / self.fps
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self.video_length = self.frames * self.fps
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def calculate_res(self):
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self.video_res = [
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int(self.video_reader.get(cv2.CAP_PROP_FRAME_WIDTH)),
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int(self.video_reader.get(cv2.CAP_PROP_FRAME_HEIGHT)),
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]
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video_aspect = self.video_res[0] / self.video_res[1]
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if self.video_res[0] > self.max_res[0]:
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self.video_res[0] = int(self.max_res[0])
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self.video_res[1] = int(self.video_res[0] / video_aspect)
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if self.video_res[1] > self.max_res[1]:
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self.video_res[1] = int(self.max_res[1])
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self.video_res[0] = int(self.video_res[1] * video_aspect)
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if self.video_res[0] < self.min_res[0]:
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self.video_res[0] = int(self.min_res[0])
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self.video_res[1] = int(self.video_res[0] / video_aspect)
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self.video_res = tuple(self.video_res)
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self.bar_start = int(self.video_res[0] * 0.05)
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self.bar_end = int(self.video_res[0] * 0.95)
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self.bar_top = int(self.video_res[1] * 0.90)
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self.bar_bottom = int(self.video_res[1] * 0.95)
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def calculate_step(self):
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now = time.time()
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self.last_move = [x for x in self.last_move if x[1] > now - 3]
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if len(self.last_move) == 0:
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self.step = 1
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self.last_move = []
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return
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lefts = sum([1 for x in self.last_move if x[0] == "l"])
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rights = sum([1 for x in self.last_move if x[0] == "r"])
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if lefts > 0 and rights > 0:
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self.step = 1
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self.last_move = []
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return
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count = max(lefts, rights)
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if count < 5:
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self.step = 1
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else:
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# x2 poly from 5:5 -> 15:180
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self.step = 45 - 16.5 * count + 1.7 * count * count
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self.step = min(self.step, 0.1 * self.video_length)
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self.step = int(self.step)
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def draw_bar(self, frame):
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position = self.nr / self.frames
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bar_position = int(self.bar_start + position * (self.bar_end - self.bar_start))
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cv2.rectangle(
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frame,
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(self.bar_start, self.bar_top),
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(self.bar_end, self.bar_bottom),
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(255, 255, 255),
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2,
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)
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for ts in self.stamps:
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ts_pos = int(
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self.bar_start + ts / self.frames * (self.bar_end - self.bar_start)
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)
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cv2.line(
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frame,
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(ts_pos, self.bar_top),
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(ts_pos, self.bar_bottom),
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(32, 32, 32),
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3,
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)
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cv2.line(
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frame,
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(ts_pos, self.bar_top),
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(ts_pos, self.bar_bottom),
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(84, 255, 63),
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1,
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)
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# cv2.line(frame, (bar_position, top), (bar_position, bottom), (32,32,32), 3)
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cv2.line(
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frame,
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(bar_position, self.bar_top),
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(bar_position, self.bar_bottom),
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(63, 84, 255),
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1,
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)
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self.shadow_text(
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frame,
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"1",
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(self.bar_start - 7, self.bar_bottom + 20),
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0.7,
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2,
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(255, 255, 255),
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)
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end_frame = self.format_time(self.frames - 1)
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(text_width, text_height) = cv2.getTextSize(
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end_frame, cv2.FONT_HERSHEY_SIMPLEX, 0.7, 2
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)[0]
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self.shadow_text(
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frame,
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end_frame,
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(self.bar_end - text_width, self.bar_bottom + 20),
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0.7,
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2,
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(255, 255, 255),
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)
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def draw_help(self, frame):
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bottom = 80
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left = 100
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for row in self.get_help().split("\n"):
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self.shadow_text(frame, row, (left, bottom), 0.6, 1, (255, 255, 255))
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bottom += 18
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def draw_label(self, frame):
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if not self.nr in self.stamps:
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return
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text = "{} #{}".format(self.nr + 1, self.stamps.index(self.nr) + 1)
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bottom = 60
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left = 10
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self.shadow_text(frame, text, (left, bottom), 1, 2, (63, 84, 255))
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def draw_time(self, frame):
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left = 10
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bottom = 30
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formatted = "{} {}".format(
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self.format_time(self.nr),
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"||" if self.paused else "",
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)
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self.shadow_text(frame, formatted, (left, bottom), 1.1, 2, (255, 255, 255))
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def format_time(self, nframe):
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seconds = int(nframe / self.fps)
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frame = nframe % self.fps
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parts = int(100 * (frame / self.fps))
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return time.strftime("%H:%M:%S", time.gmtime(seconds)) + ".%02d" % (parts)
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def get_help(self):
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return """Keyboard help:
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(Note: after mouse click, arrows stop working due to unknown bug: use j,l,i,k)
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Arrows, PgUp, PgDn, Home, End or click mouse in position bar
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j,l,i,k,[,]
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jump in video position
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, and . move one frame at a time
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z and c move to previous or next mark
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x or double click in the video
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mark frame
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space or click video
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pause
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v toggle HUD
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q or esc quit
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"""
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def mouse_click(self, event, x, y, flags, param):
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in_bar = all(
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(
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x < self.bar_end,
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x > self.bar_start,
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y < self.bar_bottom,
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y > self.bar_top,
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)
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)
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if event == cv2.EVENT_LBUTTONDOWN:
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if in_bar:
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click_relative = (x - self.bar_start) / (self.bar_end - self.bar_start)
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self.nr = int(click_relative * self.frames)
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self.read_next = True
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else:
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self.paused = not self.paused
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if event == cv2.EVENT_LBUTTONDBLCLK:
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if not in_bar:
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self.toggle_stamp()
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# doubleclick (toggle?)
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# ~ print("double", x, y)
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def parse_time(self, timestr):
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"""return frames"""
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colon_count = len(timestr.split(":")) - 1
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if colon_count == 0:
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secs = float(timestr)
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return int(secs * self.fps)
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if colon_count == 1:
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mins, secstr = timestr.split(":", 1)
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sec = float(secstr)
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return int(self.fps * (int(mins) * 60 + sec))
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if colon_count == 2:
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hours, mins, secstr = timestr.split(":", 2)
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sec = float(secstr)
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return int(self.fps * (int(hours) * 3600 + int(mins) * 60 + sec))
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raise ValueError("Cannot parse time definition {}".format(timestr))
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def parse_timestamps(self):
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if self.opts.timestamps:
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self.stamps = sorted(
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[
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self.parse_time(ts.strip())
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for ts in self.opts.timestamps.split(",")
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if ts.strip() != ""
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]
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)
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self.stamps = [x for x in self.stamps if 0 <= x < self.frames]
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self.nr = self.stamps[0]
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else:
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self.stamps = []
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self.nr = 0
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def print_help(self):
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print(self.get_help())
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def print_timestamps(self):
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self.stamps.sort()
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print("# Timestamps:")
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for i, ts in enumerate(self.stamps):
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print("# {}: {} / {}".format(i + 1, self.format_time(ts), ts + 1))
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if len(self.stamps) > 0:
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print(
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'ffmpeg -i "{}" -ss {} -to {} -c copy "{}.trimmed.mp4"'.format(
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self.opts.video.replace('"','\\"'),
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self.format_time(self.stamps[0]),
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self.format_time(self.stamps[-1]),
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self.opts.video.replace('"','\\"'),
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)
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)
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def save_timestamps(self):
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if self.opts.output == None:
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return
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with open(self.opts.output, "wt") as fp:
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for i, ts in enumerate(self.stamps):
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fp.write("{},{},{}\n".format(self.format_time(ts), i + 1, ts + 1))
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def shadow_text(self, frame, text, pos, size, thicc, color):
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cv2.putText(
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frame,
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text,
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pos,
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self.font,
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size,
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(0, 0, 0),
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2 * thicc,
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cv2.LINE_AA,
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)
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cv2.putText(
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frame,
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text,
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pos,
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self.font,
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size,
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color,
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thicc,
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cv2.LINE_AA,
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)
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def toggle_stamp(self):
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if self.nr in self.stamps:
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self.stamps.remove(self.nr)
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else:
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self.stamps.append(self.nr)
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self.stamps.sort()
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def loop(self):
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self.step = 1
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self.bigstep = 30
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self.hugestep = 300
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self.auto_step = False
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self.last_move = []
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self.video_reader.set(cv2.CAP_PROP_POS_FRAMES, self.nr)
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self.print_help()
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cv2.namedWindow("tsmark")
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cv2.setMouseCallback("tsmark", self.mouse_click)
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while self.video_reader.isOpened():
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show_time = time.time()
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if (not self.paused) or self.read_next:
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ret, frame = self.video_reader.read()
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if ret == True:
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if self.paused:
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draw_wait = 200
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else:
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draw_wait = 1
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if (not self.paused) or self.read_next:
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self.read_next = False
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frame_visu = cv2.resize(frame.copy(), self.video_res)
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nr_time = self.nr / self.fps
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if self.show_info:
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self.draw_time(frame_visu)
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self.draw_bar(frame_visu)
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self.draw_label(frame_visu)
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if self.show_help:
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self.draw_help(frame_visu)
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if cv2.getWindowProperty("tsmark", cv2.WND_PROP_VISIBLE) < 1:
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break
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cv2.imshow("tsmark", frame_visu)
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k = cv2.waitKey(draw_wait)
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if k & 0xFF == ord("q") or k & 0xFF == 27:
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break
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if k & 0xFF == 32: # space
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self.paused = not self.paused
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# Movement =================
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if k & 0xFF == 80: # home key
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self.nr = -1
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self.read_next = True
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if k & 0xFF == 87: # end key
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self.nr = self.frames - 1
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self.paused = True
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self.read_next = True
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if k & 0xFF == 85 or k & 0xFF == ord("]"): # pg up
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self.nr = int((nr_time + self.hugestep) * self.fps) - 1
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self.read_next = True
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if k & 0xFF == 86 or k & 0xFF == ord("["): # pg down
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self.nr = int((nr_time - self.hugestep) * self.fps) - 1
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self.read_next = True
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if k & 0xFF == 82 or k & 0xFF == ord("i"): # up arrow
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self.nr = int((nr_time + self.bigstep) * self.fps) - 1
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self.read_next = True
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if k & 0xFF == 84 or k & 0xFF == ord("k"): # down arrow
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self.nr = int((nr_time - self.bigstep) * self.fps) - 1
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self.read_next = True
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if k & 0xFF == 83 or k & 0xFF == ord("l"): # right arrow
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self.last_move.append(("r", time.time()))
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if self.auto_step:
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self.calculate_step()
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self.nr = int((nr_time + self.step) * self.fps) - 1
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self.read_next = True
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if k & 0xFF == 81 or k & 0xFF == ord("j"): # left arrow
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self.last_move.append(("l", time.time()))
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if self.auto_step:
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self.calculate_step()
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self.nr = int((nr_time - self.step) * self.fps) - 1
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self.read_next = True
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# Move by frame
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if k & 0xFF == ord("."):
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self.paused = True
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self.read_next = True
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if k & 0xFF == ord(","):
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self.paused = True
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self.nr -= 2
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self.read_next = True
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if k & 0xFF == ord("z"): # move to previous ts
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for ts in reversed(sorted(self.stamps)):
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if ts < self.nr - 1:
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self.nr = ts - 1
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self.read_next = True
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break
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if k & 0xFF == ord("c"): # move to previous ts
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for ts in sorted(self.stamps):
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if ts > self.nr:
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self.nr = ts - 1
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self.read_next = True
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break
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# Toggling =================
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if k & 0xFF == ord("x"): # toggle ts
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self.toggle_stamp()
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if k & 0xFF == ord("v"):
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self.show_info = not self.show_info
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if k & 0xFF == ord("h"):
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self.print_help()
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self.show_help = not self.show_help
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if (not self.paused) or self.read_next:
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self.nr += 1
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if self.nr < 0:
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self.nr = 0
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if self.nr >= self.frames:
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self.nr = self.frames - 1
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self.paused = True
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if self.read_next:
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self.video_reader.set(cv2.CAP_PROP_POS_FRAMES, self.nr)
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time_to_wait = self.spf - time.time() + show_time
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if time_to_wait > 0:
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time.sleep(time_to_wait)
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else:
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self.nr = self.frames - 2
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self.video_reader.set(cv2.CAP_PROP_POS_FRAMES, self.nr)
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self.paused = True
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self.read_next = True
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self.video_reader.release()
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self.print_timestamps()
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self.save_timestamps()
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