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Copy pathdemo_load_entire_sound.py
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demo_load_entire_sound.py
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from PyQt5 import QtWidgets, uic, QtCore
from PyQt5.QtMultimedia import QMediaPlayer, QMediaContent, QVideoFrame
from PyQt5.QtCore import QUrl, QTimer
from PyQt5.QtGui import QPixmap, QImage
import sys
import os
app = QtWidgets.QApplication(sys.argv)
import cv2
import matplotlib.pyplot as plt
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
import numpy as np
class UI(QtWidgets.QMainWindow):
# changePixmap = QtCore.pyqtSignal()
def __init__(self):
super().__init__()
uic.loadUi('/workspace/demo_cv2_load_entire.ui', self)
self.button_loadvideo.clicked.connect(self.get_videopath)
self.button_playpause.clicked.connect(self.playpause)
self.button_playpause.setEnabled(False)
self.lineEdit.returnPressed.connect(self.set_videopath)
self.button_gtbox.clicked.connect(self.toggle_gtbox)
self.button_gtbox.setEnabled(False)
x = self.label.geometry().left()
w = self.label.geometry().width()
y = self.label.geometry().top()
h = self.label.geometry().height()
self.button_gtbox.move(x + w + 50, y)
self.button_debug.clicked.connect(self.debug)
self.button_debug.move(x + w + 50, y + 50)
self.player = QMediaPlayer(None, QMediaPlayer.VideoSurface)
self.player.setVideoOutput(self.videowidget)
self.slider_cv2.setRange(0, 0)
self.slider_cv2.setValue(0)
self.slider_cv2.valueChanged.connect(self.show_videoframe)
self.slider_cv2.valueChanged.connect(self.set_point_on_graph)
self.slider_cv2.sliderReleased.connect(self.slider_released)
self.slider_cv2.sliderPressed.connect(self.stop_timer)
self.slider_cv2.move(x, y + h + 50)
self.timer = QTimer(self)
self.timer.timeout.connect(self.inc_slider_position)
self.timer_resize = QTimer(self)
self.timer_resize.timeout.connect(self.audio_sink)
self.fig = plt.Figure()
self.canvas = FigureCanvas(self.fig)
############################
# self.widget = widget(parent=self.centralwidget)
# self.widget.resize(400, 170)
# self.graph_layout = QtWidgets.QVBoxLayout(parent=self.widget)
# self.graph_layout = qvboxlayout()
# self.canvas = Canvas(self.fig)
# self.canvas.setMouseTracking(True)
#########################
self.graph_layout.addWidget(self.canvas)
self.widget.move(x, y + h + 100)
self.button_playpause.move(x, y + h + 150 + self.widget.size().height())
self.setMouseTracking(True)
# self.centralwidget.setMouseTracking(True)
# self.centralwidget.moved.connect()
#-------------
self.video_format = ('mp4', 'avi', 'mpeg')
self.videopath = ''
self.frames = []
self.isplaying = False
self.gt_box = []
self.isgtbox = False
self.isresized = False
self.fps = 0
#-------------
#---------For resizeing widget-----------
w, h = self.size().width(), self.size().height()
self.ratio_label = (self.label.size().width() / w, self.label.size().height() / h)
self.ratio_slider_cv2 = self.slider_cv2.size().width() / w
self.graph_layout.activate()
self.ratio_widget = (self.widget.size().width() / w, self.widget.size().height() / h)
self.initial_wh = (w, h)
#----------------------------------------
self.show()
def debug(self):
print("debug")
# def mouseMoveEvent(self, event):
# print(event.x(), event.y())
def resizeEvent(self, event):
self.isresized = True
self.timer_resize.start(100)
# print("Resized")
QtWidgets.QMainWindow.resizeEvent(self, event)
self.resize_widget(self.label, 'both', self.ratio_label)
self.resize_widget(self.slider_cv2, 'width', self.ratio_slider_cv2)
# self.resize_widget(self.graph_layout, 'both', self.ratio_graph_layout)
self.resize_widget(self.widget, 'both', self.ratio_widget)
x = self.label.geometry().left()
w = self.label.geometry().width()
y = self.label.geometry().top()
h = self.label.geometry().height()
self.button_gtbox.move(x + w + 50, y)
self.button_debug.move(x + w + 50, y + 50)
self.slider_cv2.move(x, y + h + 50)
self.widget.move(x, y + h + 100)
self.button_playpause.move(x, y + h+ 150 + self.widget.size().height())
self.show_videoframe()
def audio_sink(self):
if self.isresized:
self.isresized = False
else:
self.slider_cv2.setValue(int(self.player.position() * self.fps / 1000))
self.show_videoframe()
self.timer_resize.stop()
def set_videopath(self):
self.videopath = self.lineEdit.text()
# print(self.videopath)
if (self.videopath != '') \
and os.path.isfile(self.videopath) \
and self.videopath.split('.')[-1] in self.video_format:
if os.path.exists(self.videopath.split(".")[0] + "_gtbox.txt"):
with open(self.videopath.split(".")[0] + "_gtbox.txt", "r") as f:
self.gt_box = f.read().splitlines()
self.player.setMedia(QMediaContent(QUrl.fromLocalFile(self.videopath)))
self.cap = cv2.VideoCapture(self.videopath)
self.fps = self.cap.get(cv2.CAP_PROP_FPS)
self.spf = int(1000 / self.fps)
self.button_gtbox.setEnabled(True)
self.read_videoframe()
self.show_videoframe()
def get_videopath(self):
if self.isplaying:
self.timer.stop()
self.isplaying = False
self.player.pause()
filter = "Videos(*.mp4 *.avi *.mpeg)"
self.videopath = QtWidgets.QFileDialog.getOpenFileName(self, filter=filter)[0]
if self.videopath != '':
if os.path.exists(self.videopath.split(".")[0] + "_gtbox.txt"):
with open(self.videopath.split(".")[0] + "_gtbox.txt", "r") as f:
self.gt_box = f.read().splitlines()
self.player.setMedia(QMediaContent(QUrl.fromLocalFile(self.videopath)))
self.cap = cv2.VideoCapture(self.videopath)
self.fps = self.cap.get(cv2.CAP_PROP_FPS)
self.spf = int(1000 / self.fps)
self.button_gtbox.setEnabled(True)
self.read_videoframe()
self.show_videoframe()
def playpause(self):
if not self.isplaying:
self.timer.start(self.spf)
self.isplaying = True
self.player.play()
else:
self.timer.stop()
self.isplaying = False
self.player.pause()
def set_video_position(self):
player_position = self.slider_cv2.value() * self.spf
self.player.setPosition(player_position)
def inc_slider_position(self):
self.slider_cv2.setValue(self.slider_cv2.value() + 1)
def read_videoframe(self):
self.frames = []
self.slider_cv2.setValue(0)
self.set_video_position()
while self.cap.isOpened():
ret, frame = self.cap.read()
if ret:
self.frames.append(frame)
print("Loading frame: ", len(self.frames))
else:
break
print("End loading")
self.button_playpause.setEnabled(True)
self.cap.release()
cv2.destroyAllWindows()
self.slider_cv2.setRange(0, len(self.frames) - 1)
self.process_frames_temp()
def show_videoframe(self):
if len(self.frames) == 0:
return
frame = self.frames[self.slider_cv2.value()]
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
# frame = cv2.resize(frame, (self.label.size().width(), self.label.size().height()), interpolation=cv2.INTER_CUBIC)
if self.isgtbox:
box_info = self.gt_box[self.slider_cv2.value()]
bx, by, bw, bh = list(map(lambda x: int(x), box_info.replace(" ", "").split(",")))
frame = cv2.rectangle(frame, (bx - int(0.5 * bw), by - int(0.5 * bh)),
(bx + int(0.5 * bw), by + int(0.5 * bh)), (0, 0, 255), 3)
h, w, ch = frame.shape
frame = QImage(frame.data, w, h, ch * w, QImage.Format_RGB888)
frame = QPixmap(frame)
frame = frame.scaled(self.label.size().width(), self.label.size().height(), QtCore.Qt.KeepAspectRatio)
self.label.setPixmap(frame)
def stop_timer(self):
self.timer.stop()
self.player.pause()
def process_frames_temp(self):
values = np.random.randint(0, 2, len(self.frames))
values = values * 0.1 + 0.7
self.ax = self.fig.add_subplot(111)
self.ax.clear()
self.ax.plot(values, marker="o", markevery=[0], markerfacecolor='red')
self.ax.plot(values, lw=0.0, marker="o", markevery=[0], mec='red', mew=0.1, mfc=(1, 1, 0, 0.5))
self.ax.set_xlabel("frame")
self.ax.set_ylabel("confidence")
self.ax.set_title("TEMP graph")
self.ax.set_ylim([0., 1.])
# ax.legend()
self.fig.tight_layout()
self.canvas.draw()
# self.canvas.isgraph = True
self.fig.canvas.mpl_connect('motion_notify_event', self.plt_move_event)
self.fig.canvas.mpl_connect('button_press_event', self.plt_bpress_event)
def set_point_on_graph(self):
slider_pos = self.slider_cv2.value()
self.ax.lines[0].set_markevery([slider_pos])
# self.canvas.slider_pos = self.slider_cv2.value()
self.canvas.draw()
def slider_released(self):
if self.isplaying:
self.timer.start(self.spf)
self.player.play()
else:
self.timer.stop()
self.player.pause()
self.show_videoframe()
self.set_video_position()
def toggle_gtbox(self):
if self.isgtbox:
self.isgtbox = False
else:
self.isgtbox = True
self.show_videoframe()
def resize_widget(self, widget, mode, ratio):
if mode == 'width':
widget.resize(int(self.size().width() * ratio), widget.geometry().height())
elif mode == 'height':
widget.resize(widget.geometry().width(), int(self.size().height() * ratio))
else:
try:
widget.resize(int(self.size().width() * ratio[0]), int(self.size().height() * ratio[1]))
except AttributeError:
widget.setGeometry(QtCore.QRect(widget.geometry().left(), widget.geometry().top(), int(self.geometry().width() * ratio[0]), int(self.geometry().height() * ratio[1])))
def plt_move_event(self, e):
# xs, _ = self.ax.transData.transform_point([0, 0])
# xe, _ = self.ax.transData.transform_point([len(self.frames), 0])
if e.xdata is not None:
if e.xdata > 0 and e.xdata < len(self.frames) - 1:
# x = trans_x_to_ax(e.x, int(xs), int(xe), len(self.frames) - 1)
self.ax.lines[1].set_markevery([round(e.xdata)])
self.canvas.draw()
elif e.xdata < 0:
self.ax.lines[1].set_markevery([0])
self.canvas.draw()
else:
self.ax.lines[1].set_markevery([len(self.frames) - 1])
self.canvas.draw()
# print("E:", e.xdata)
def plt_bpress_event(self, e):
# print("B:", e.x, e.xdata)
if e.xdata is not None:
if e.xdata > 0 and e.xdata < len(self.frames):
self.slider_cv2.setValue(round(e.xdata))
# print(round(e.xdata))
elif e.xdata < 0:
self.slider_cv2.setValue(0)
else:
self.slider_cv2.setValue(len(self.frames) - 1)
self.isplaying = False
self.timer.stop()
# if self.player.state() == 0:
# self.player.play()
self.set_video_position()
# class widget(QtWidgets.QWidget):
# def __init__(self, parent):
# super(widget, self).__init__(parent=parent)
# self.setMouseTracking(True)
# def mouseMoveEvent(self, event):
# print(event.x(), event.y())
# def mousePressEvent(self, a0: QtGui.QMouseEvent) -> None:
# return super().mousePressEvent(a0)
# class Canvas(FigureCanvas):
# def __init__(self, figure):
# super(Canvas, self).__init__(figure=figure)
# self.isgraph = False
# self.slider_pos = None
# def mouseMoveEvent(self, event):
# # return super().mouseMoveEvent(event)
# # print(event.x(), event.y())
# if self.isgraph:
# x = event.x()
# self.figure.axes[0].lines[0].set_markevery([self.slider_pos, x])
# self.draw()
def trans_x_to_ax(x, start, end, _len):
ratio = _len / (end - start)
return (x - start) * ratio
if __name__ == "__main__":
window = UI()
app.exec_()