61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
#!/usr/bin/env python
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import sys
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if sys.version_info[0] >= 3:
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import PySimpleGUI as sg
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else:
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import PySimpleGUI27 as sg
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import cv2 as cv
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from PIL import Image
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import io
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from sys import exit as exit
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"""
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Demo program to open and play a file using OpenCV
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Unsure how to get the frames coming from OpenCV into the right format, so saving each frame to
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a temp file. Clearly... clearly... this is not the optimal solution and one is being searched for now.
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Until then enjoy it working somewhat slowly.
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"""
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def main():
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filename = sg.PopupGetFile('Filename to play')
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if filename is None:
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exit(69)
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vidFile = cv.VideoCapture(filename)
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# ---===--- Get some Stats --- #
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num_frames = vidFile.get(cv.CAP_PROP_FRAME_COUNT)
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fps = vidFile.get(cv.CAP_PROP_FPS)
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sg.ChangeLookAndFeel('Dark')
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# define the window layout
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layout = [[sg.Text('OpenCV Demo', size=(15, 1),pad=((510,0),3), justification='center', font='Helvetica 20')],
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[sg.Image(filename='', key='image')],
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[sg.Slider(range=(0, num_frames), size=(115, 10), orientation='h', key='slider')],
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[sg.Button('Exit', size=(10, 2), pad=((600, 0), 3), font='Helvetica 14')]]
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# create the window and show it without the plot
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window = sg.Window('Demo Application - OpenCV Integration', no_titlebar=False, location=(0,0)).Layout(layout)
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# ---===--- LOOP through video file by frame --- #
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i = 0
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while vidFile.isOpened():
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event, values = window.Read(timeout=0)
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if event is 'Exit' or event is None:
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exit(69)
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ret, frame = vidFile.read()
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if not ret: # if out of data stop looping
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break
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window.FindElement('slider').Update(i)
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i += 1
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# let img be the PIL image
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img = Image.fromarray(frame) # create PIL image from frame
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bio = io.BytesIO() # a binary memory resident stream
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img.save(bio, format= 'PNG') # save image as png to it
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imgbytes = bio.getvalue() # this can be used by OpenCV hopefully
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window.FindElement('image').Update(data=imgbytes)
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main() |