利用cv2和PyQt5实现类似视频格式工厂的小项目

项目地址：https://github.com/nickhuang1996/format-tools

兼容格式：视频mp4/avi/mkv，帧图像jpg

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如何运行：运行main.py

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一、项目结构

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二、文件格式

1.帧图像：5位数的jpg文件

2.视频文件：mp4

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三、代码(按照项目从上往下的顺序)

----scripts

----Button

----__init__.py

----ButtonBase.py

from abc import ABCMeta, abstractmethod
from PyQt5.QtWidgets import *


class ButtonBase(metaclass=ABCMeta):
    def __init__(self, MainForm):
        self.btn = QPushButton(MainForm)
    @abstractmethod
    def get_btn(self):
        pass

----ButtonSub.py

from scripts.Button.ButtonBase import ButtonBase

"""Choose images2gif"""
class Button_images2gif(ButtonBase):

    def get_btn(self):
        self.btn.setObjectName("btn_chooseDir")
        self.btn.setText("images2gif")
        return self.btn


"""Choose video2images"""
class Button_video2images(ButtonBase):

    def get_btn(self):
        self.btn.setObjectName("btn_chooseFile")
        self.btn.setText("video2images")
        return self.btn


"""Choose videos2image"""
class Button_videos2image(ButtonBase):

    def get_btn(self):
        self.btn.setObjectName("btn_chooseMutiFile")
        self.btn.setText("videos2image")
        return self.btn


"""Choose images2video"""
class Button_images2video(ButtonBase):

    def get_btn(self):
        self.btn.setObjectName("btn_saveFile")
        self.btn.setText("images2video")
        return self.btn

"""Choose videoscreenshot"""
class Button_videoscreenshot(ButtonBase):

    def get_btn(self):
        self.btn.setObjectName("btn_VideoScreenShot")
        self.btn.setText("videoscreenshot")
        return self.btn

----Form

----__init__.py

----MainForm.py

import sys
import os
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *

class MainForm(QWidget):
    def __init__(self, name='MainForm'):
        super(MainForm, self).__init__()
        self.setWindowTitle(name)
        self.resize(300, 200)
        """Center"""
        screen = QDesktopWidget().screenGeometry()
        form = self.geometry()
        x_move_step = (screen.width() - form.width()) // 2
        y_move_step = (screen.height() - form.height()) // 2
        self.move(x_move_step, y_move_step)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    mainForm = MainForm('test QFileDialog')
    mainForm.show()
    sys.exit(app.exec_())

----SelectForm.py

from scripts.Form.MainForm import *
from scripts.Form.VideoScreenShotForm import VideoScreenShotForm
from scripts.transform_tools.video2image import video2image
from scripts.transform_tools.image2video import image2video
from scripts.transform_tools.image2gif import image2gif
from scripts.Button.ButtonSub import *
from scripts.utils.ProcessBar import ProcessBar
from scripts.utils.set_cwd import set_cwd
from scripts.utils.check_jpg_dir import check_jpg_dir


class SelectForm(MainForm):
    def __init__(self, name='SelectForm', settings=set_cwd()):
        super(SelectForm, self).__init__(name)
        """default fps"""
        self.fps = 25
        """VideoScreenShotForm"""
        self.VideoScreenShotForm = None

        """ProcessBar"""
        self.ProcessBar = ProcessBar()
        """path for button"""
        self.images_folder = settings['images_folder']
        self.gif_folder = settings['gif_folder']
        self.video_folder = settings['video_folder']

        """btn images2gif"""
        self.btn_images2gif = Button_images2gif(self).get_btn()

        """btn video2images"""
        self.btn_video2images = Button_video2images(self).get_btn()

        """btn videos2images"""
        self.btn_videos2images = Button_videos2image(self).get_btn()

        """btn images2video"""
        self.btn_images2video = Button_images2video(self).get_btn()

        """btn VideoScreenShot"""
        self.btn_videoscreenshot = Button_videoscreenshot(self).get_btn()
        """layout"""
        layout = QVBoxLayout()
        layout.addWidget(self.btn_images2gif)
        layout.addWidget(self.btn_video2images)
        layout.addWidget(self.btn_videos2images)
        layout.addWidget(self.btn_images2video)
        layout.addWidget(self.btn_videoscreenshot)
        layout.addWidget(self.ProcessBar.get_pbar_text())
        layout.addWidget(self.ProcessBar.get_pbar())
        self.setLayout(layout)

        """signal"""
        self.btn_images2gif.clicked.connect(self.slot_btn_images2gif)
        self.btn_video2images.clicked.connect(self.slot_btn_video2images)
        self.btn_videos2images.clicked.connect(self.slot_btn_videos2images)
        self.btn_images2video.clicked.connect(self.slot_btn_images2video)
        self.btn_videoscreenshot.clicked.connect(self.slot_btn_videoscreenshot)

    """transform images to gif"""
    def slot_btn_images2gif(self):
        QMessageBox.information(self,
                                'Choose the frames directory',
                                "Choose the frames folder.")
        check_flag = True
        video_dir_choose = None
        while check_flag:
            video_dir_choose = QFileDialog.getExistingDirectory(self,
                                                                "select the load path",
                                                                self.images_folder['images2gif'])
            self.images_folder['images2gif'] = video_dir_choose

            if video_dir_choose == "":
                print("\nCancel Select load directory")
                return
            """check direction whether exists jpg files"""
            check_flag = self.check_load_jpg_dir(video_dir_choose, "gif")

        gifname_choose, file_type = QFileDialog.getSaveFileName(self,
                                                                "choose video path",
                                                                self.gif_folder['images2gif'],
                                                                "All Files (*);;"
                                                                "gif Files (*.gif);;")
        self.gif_folder = os.path.abspath(gifname_choose)

        if gifname_choose == "":
            print("\nCancel Select video")
            return

        print("\nThe chosen images is:")
        print(gifname_choose)

        """input fps"""
        ok_pressed = True
        while ok_pressed:
            fps, ok_pressed = QInputDialog.getText(self,
                                                   "Fps Setting",
                                                   "Please input fps:",
                                                   QLineEdit.Normal,
                                                   str(self.fps))
            if ok_pressed and fps.strip():  # erase head and tail blank

                image2gif(self.ProcessBar,
                          video_dir_choose,
                          gifname_choose,
                          fps)

                self.reset_pbar()
                QMessageBox.information(self,
                                        'Synthetic success!',
                                        os.path.basename(gifname_choose) + ' Synthetic success!')

                return

            elif ok_pressed is False:
                return
            else:
                QMessageBox.critical(self, 'Error', "please input fps and try again!")

    """transform video to images"""
    def slot_btn_video2images(self):
        QMessageBox.information(self,
                                'Choose the video',
                                "Choose the video")
        videoname_choose, file_type = QFileDialog.getOpenFileName(self,
                                                                  "choose video path",
                                                                  self.video_folder['video2images'],
                                                                  "All Files (*);;"
                                                                  "Video Files (*.mp4);;"
                                                                  "Video Files (*.avi);;"
                                                                  "Video Files (*.mkv);;")
        self.video_folder['video2images'] = os.path.abspath(videoname_choose)
        if videoname_choose == "":
            print("\nCancel Select video")
            return
        QMessageBox.information(self,
                                'Choose the save path',
                                "Choose the frames save path")
        video_dir_choose = QFileDialog.getExistingDirectory(self,
                                                            "select the save path",
                                                            self.images_folder['video2images'])
        self.images_folder['video2images'] = video_dir_choose
        if video_dir_choose == "":
            print("\nCancel Select save directory")
            return

        print("\nThe chosen video is:")
        print(videoname_choose)
        """Select video and transform to images"""
        image_save_folder, video_name, fps, total_finish_frame_number = video2image(self.ProcessBar,
                                                                                    videoname_choose,
                                                                                    video_dir_choose)
        """check direction whether exists jpg files"""
        video_information = self.check_save_video_dir(image_save_folder,
                                                      video_name,
                                                      fps,
                                                      total_finish_frame_number)

        self.reset_pbar()
        QMessageBox.information(self, 'Save Results',
                                "video2images" + " has been finished!\n" +
                                video_information
                                )

    """transform videos to images"""
    def slot_btn_videos2images(self):
        QMessageBox.information(self,
                                'Choose the videos',
                                "Choose the videos")
        videoname_chooses, file_type = QFileDialog.getOpenFileNames(self,
                                                                    "choose videos path",
                                                                    self.video_folder['videos2images'],
                                                                    "All Files (*);;"
                                                                    "Video Files (*.mp4);;"
                                                                    "Video Files (*.avi);;"
                                                                    "Video Files (*.mkv);;")
        self.video_folder['videos2images'] = os.path.abspath(videoname_chooses[0])
        if len(videoname_chooses) == 0:
            print("\nCancel Select videos")
            return
        QMessageBox.information(self,
                                'Choose the save path',
                                "Choose the frames save path")
        video_dir_choose = QFileDialog.getExistingDirectory(self,
                                                            "select the save path",
                                                            self.images_folder['videos2images'])
        self.images_folder['videos2images'] = video_dir_choose
        if video_dir_choose == "":
            print("\nCancel Select save directory")
            return
        print("\nThe chosen videos are:")

        """Select videos and transform to images"""
        video_informations = ''
        for videoname_choose in videoname_chooses:
            print(videoname_choose)

            image_save_folder, video_name, fps, total_finish_frame_number = video2image(self.ProcessBar,
                                                                                        videoname_choose,
                                                                                        video_dir_choose)
            """check direction whether exists jpg files"""
            video_information = self.check_save_video_dir(image_save_folder,
                                                          video_name,
                                                          fps,
                                                          total_finish_frame_number)
            video_informations += video_information

        self.reset_pbar()
        QMessageBox.information(self, 'Save Results',
                                "video2images" + " has been finished!\n" +
                                video_informations
                                )

    """transform images to video"""
    def slot_btn_images2video(self):
        QMessageBox.information(self,
                                'Choose the frames directory',
                                "Choose the frames folder.")
        check_flag = True
        video_dir_choose = None
        while check_flag:
            video_dir_choose = QFileDialog.getExistingDirectory(self,
                                                                "select the load path",
                                                                self.images_folder['images2video'])
            self.images_folder['images2video'] = video_dir_choose
            if video_dir_choose == "":
                print("\nCancel Select load directory")
                return
            """check direction whether exists jpg files"""
            check_flag = self.check_load_jpg_dir(video_dir_choose, "video")

        videoname_choose, file_type = QFileDialog.getSaveFileName(self,
                                                                  "choose video path",
                                                                  self.video_folder['images2video'],
                                                                  "All Files (*);;"
                                                                  "Video Files (*.mp4);;"
                                                                  "Video Files (*.avi);;"
                                                                  "Video Files (*.mkv);;")
        self.video_folder['images2video'] = os.path.abspath(videoname_choose)
        if videoname_choose == "":
            print("\nCancel Select video")
            return

        print("\nThe chosen images is:")
        print(videoname_choose)

        """input fps"""
        ok_pressed = True
        while ok_pressed:
            fps, ok_pressed = QInputDialog.getText(self,
                                                   "Fps Setting",
                                                   "Please input fps:",
                                                   QLineEdit.Normal,
                                                   str(self.fps))
            if ok_pressed and fps.strip():  # erase head and tail blank

                image2video(self.ProcessBar,
                            videoname_choose,
                            video_dir_choose,
                            fps)

                self.reset_pbar()
                QMessageBox.information(self,
                                        'Synthetic success!',
                                        os.path.basename(videoname_choose) + ' Synthetic success!')
                return

            elif ok_pressed is False:
                return
            else:
                QMessageBox.critical(self, 'Error', "please input fps and try again!")

    """video screen shot"""
    def slot_btn_videoscreenshot(self):
        self.VideoScreenShotForm = VideoScreenShotForm()
        self.VideoScreenShotForm.show()
        print("VideoScreenShotForm Start...\n")
        return




    def check_load_jpg_dir(self, video_dir_choose, target):
        """check direction whether exists jpg files"""
        check_flag, frames_number = check_jpg_dir(video_dir_choose)
        if check_flag is True and frames_number is 0:
            QMessageBox.critical(self, 'Error', "No jpg file was found, please choose the right folder!!")
        elif check_flag is True and frames_number is 1:
            QMessageBox.critical(self, 'Error', "Only 1 jpg file was found, please choose the right folder!!")
        else:
            check_flag = False
            QMessageBox.information(self, 'Frames Number',
                                    str(frames_number) + " jpg file were found, continue to choose " + target + " path.")
        return check_flag

    def check_save_video_dir(self, image_save_folder, video_name, fps, total_finish_frame_number):
        """check direction whether exists jpg files"""
        _, video_number = check_jpg_dir(image_save_folder)
        video_information = video_name + ':\n' + \
                            str(total_finish_frame_number) + ' images have been transformed.\n' + \
                            "fps :" + str(fps) + '\n' + '\n'
        return video_information

    def reset_pbar(self):
        self.ProcessBar.reset_pbar()

----VideoScreenShotForm.py

from scripts.Form.MainForm import *
from scripts.utils.set_cwd import set_cwd
from scripts.transform_tools.video_screen_shot import video_screen_shot
from scripts.utils.ProcessBar import ProcessBar


class VideoScreenShotForm(MainForm):
    def __init__(self, name='VideoScreenShotForm', settings=set_cwd()):
        super(VideoScreenShotForm, self).__init__(name)

        """path for button"""
        self.video_folder = settings['video_folder']
        """ProcessBar"""
        self.ProcessBar = ProcessBar()
        """grid layout"""
        grid = QGridLayout()
        self.grid = grid
        self.setLayout(self.grid)

        """location contents set"""
        screen_shot_set =[
            'left-up-x', 'right-bottom-x',
            ' ', ' ',
            'left-up-y', 'right-bottom-y',
            ' ', ' ',
            'OK', '',
            'process:', '',
            'pbar', ''
        ]

        LineEdit_index = 0
        LineEdit_content = ['left-up-x', 'right-bottom-x', 'left-up-y', 'right-bottom-y']
        """locations set"""
        positions = [(i, j) for i in range(7) for j in range(2)]
        for pos, name in zip(positions, screen_shot_set):
            if name == '':
                continue
            elif name is 'OK':
                btn = QPushButton(name)
                btn.setObjectName(name)
                btn.clicked.connect(self.slot_btn_video_screen_shot)
                grid.addWidget(btn, *pos, 1, 2)
                btn.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
            elif name is 'process:':
                pbar_text = self.ProcessBar.get_pbar_text()
                pbar_text.setObjectName(name)
                grid.addWidget(pbar_text, *pos, 1, 2)
                pbar_text.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
            elif name is 'pbar':
                pbar_loc = self.ProcessBar.get_pbar()
                pbar_loc.setObjectName(name)
                grid.addWidget(pbar_loc, *pos, 1, 2)
                pbar_loc.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
            elif name is ' ':
                loc = QLineEdit()
                loc.setObjectName(LineEdit_content[LineEdit_index])
                grid.addWidget(loc, *pos)
                LineEdit_index += 1
            else:
                loc_label = QLabel(name)
                loc_label.setObjectName(name)
                grid.addWidget(loc_label, *pos)

        self.left_up_x = self.findChild(QLineEdit, 'left-up-x')
        self.left_up_y = self.findChild(QLineEdit, 'left-up-y')
        self.right_bottom_x = self.findChild(QLineEdit, 'right-bottom-x')
        self.right_bottom_y = self.findChild(QLineEdit, 'right-bottom-y')
        """default 1920x1080"""
        self.left_up_x.setText("0")
        self.left_up_y.setText("0")
        self.right_bottom_x.setText("1920")
        self.right_bottom_y.setText("1080")

        self.new_frame = [[], [], [], []]

    def slot_btn_video_screen_shot(self):
        self.new_frame = self.get_new_frame()
        QMessageBox.information(self,
                                'Choose the video',
                                "Choose the video")
        videoname_choose, file_type = QFileDialog.getOpenFileName(self,
                                                                  "choose video path",
                                                                  self.video_folder['videoscreenshotload'],
                                                                  "All Files (*);;"
                                                                  "Video Files (*.mp4);;"
                                                                  "Video Files (*.avi);;"
                                                                  "Video Files (*.mkv);;")
        self.video_folder['videoscreenshotload'] = os.path.abspath(videoname_choose)
        if videoname_choose == "":
            print("\nCancel Select video")
            return
        QMessageBox.information(self,
                                'Choose the new video name',
                                "Choose the new video name")
        videonewname_choose, file_type = QFileDialog.getSaveFileName(self,
                                                                     "choose video path",
                                                                     self.video_folder['videoscreenshotsave'],
                                                                     "All Files (*);;"
                                                                     "Video Files (*.mp4);;"
                                                                     "Video Files (*.avi);;"
                                                                     "Video Files (*.mkv);;")
        self.video_folder['videoscreenshotsave'] = os.path.abspath(videoname_choose)
        if videonewname_choose == "":
            print("\nCancel Select new video")
            return

        print("\nThe chosen video is:")
        print(videoname_choose)
        """Select video and screen shot"""
        video_screen_shot(self.ProcessBar,
                          videoname_choose,
                          videonewname_choose,
                          self.new_frame)
        self.reset_pbar()
        QMessageBox.information(self, 'Save Results',
                                "video screen shot" + " has been finished!\n"
                                )
        self.close()
        return

    def get_new_frame(self):
        self.new_frame[0] = int(self.left_up_y.text())
        self.new_frame[1] = int(self.right_bottom_y.text())
        self.new_frame[2] = int(self.left_up_x.text())
        self.new_frame[3] = int(self.right_bottom_x.text())
        return self.new_frame

    def reset_pbar(self):
        self.ProcessBar.reset_pbar()

----transform_tools

----__init__.py

----image2gif.py

import os
import numpy as np
from PIL import Image, ImageDraw
import imageio
import inspect


def add_text_to_image(image, text, font=None):
    rgba_image = image.convert('RGBA')
    text_overlay = Image.new('RGBA', rgba_image.size, (255, 255, 255, 0))
    image_draw = ImageDraw.Draw(text_overlay)

    text_size_x, text_size_y = image_draw.textsize(text, font=font)

    print(rgba_image)
    """set text location"""
    text_xy = (rgba_image.size[0] - text_size_x, rgba_image.size[1] - text_size_y)
    """set text color and transparency"""
    image_draw.text(text_xy, text, font=font, fill=(255, 0, 0, 800))

    image_with_text = Image.alpha_composite(rgba_image, text_overlay)

    return image_with_text


def image2gif(ProcessBar, load_path, gif_name, fps):
    """set the func name on pbar text"""
    ProcessBar.set_Text(inspect.stack()[0][3])
    """int fps"""
    fps = int(fps)
    """image name save format"""
    image_format = '{:05d}{:s}.jpg'
    """gif basename"""
    gif_basename = os.path.basename(gif_name)
    images = os.listdir(load_path)
    """duration"""
    duration = 1/fps
    """the index of the image that has been processed"""
    image_index = 1
    """for store each frame image"""
    frames = []
    ProcessBar.set_zero()
    for image in range(len(images)):
        jpgfile = str(load_path + '/' + image_format.format(image_index, ''))
        frame = Image.open(jpgfile)
        frame = add_text_to_image(frame, gif_basename)
        frames.append(np.array(frame))
        print(image_index)
        image_index += 1
        ProcessBar.set_Value(image_index, len(images), ratio=90)
        if image_index == len(images):
            ProcessBar.set_Text("Please wait ... it may take a few minutes...")
    print("Please wait ... it may take a few minutes...")

    imageio.mimsave(gif_name, frames, 'GIF', duration=duration)  # duration = 1/fps
    ProcessBar.set_max()
    print(gif_basename, 'Synthetic success!')

----image2video.py

import cv2
import os
from PIL import Image
import inspect


def image2video(ProcessBar, video_new_path, load_path, fps):
    """set the func name on pbar text"""
    ProcessBar.set_Text(inspect.stack()[0][3])
    fps = int(fps)
    fourcc = cv2.VideoWriter_fourcc(*"mp4v")
    """images path"""
    images = os.listdir(load_path)
    im = Image.open(load_path + '/' + images[0])
    vw = cv2.VideoWriter(video_new_path, fourcc, fps, im.size)
    """image name save format"""
    image_format = '{:05d}{:s}.jpg'
    """the index of the image that has been processed"""
    image_index = 1

    ProcessBar.set_zero()
    for image in range(len(images)):
        jpgfile = str(load_path + '/' + image_format.format(image_index, ''))
        try:
            frame = cv2.imread(jpgfile)
            vw.write(frame)
            print("image ", str(image_index), " has been processed.")
            image_index += 1
            ProcessBar.set_Value(image_index, len(images))

        except Exception as exc:
            print(jpgfile, exc)
    vw.release()
    print(video_new_path, 'Synthetic success!')

----video2image.py

import os
import cv2
import inspect


def video2image(ProcessBar, video_path, save_path):
    """set the func name on pbar text"""
    ProcessBar.set_Text(inspect.stack()[0][3])
    """select the video"""
    vc = cv2.VideoCapture(video_path)
    """image name save format"""
    image_format = '{:05d}{:s}.jpg'
    """basename"""
    video_name = os.path.basename(video_path)
    """image save folder"""
    image_save_folder = save_path + '/' + str(video_name.split('.')[0]) + '_' + str(video_name.split('.')[-1])
    if not os.path.exists(image_save_folder):
        os.mkdir(image_save_folder)
    assert os.path.exists(image_save_folder), 'Error: Invalid save path !'
    """the index of the image that has been processed"""
    image_index = 1
    """get the total frame number"""
    total_frame_number = vc.get(cv2.CAP_PROP_FRAME_COUNT)
    """get fps"""
    fps = vc.get(cv2.CAP_PROP_FPS)
    """Start to write..."""
    print("\nStart to Write...\n")
    ProcessBar.set_zero()
    while (image_index - 1) < total_frame_number:
        ret, frame = vc.read()
        if ret:
            cv2.imwrite(image_save_folder + '/' + image_format.format(image_index, ''), frame)
            cv2.waitKey(1)
            print("image ", str(image_index), " has been processed.")
            image_index += 1
            ProcessBar.set_Value(image_index, total_frame_number)
        elif frame is None:
            print("Write process is at the end.\n")
            ProcessBar.set_zero()
            return
        else:
            print("Cannot process the image ", str(image_index), "! Write to the image failed! \n")
            ProcessBar.set_zero()
            return
    print("Write process has been finished!!\n")
    """the total number of the image"""
    print(video_name, ':', image_index - 1, ' images have been transformed.')
    """release"""
    vc.release()
    return image_save_folder, video_name, fps, image_index - 1

----video_screen_shot.py

import os
import cv2
import inspect


def video_screen_shot(ProcessBar, video_path, video_new_path, new_frame):
    """set the func name on pbar text"""
    ProcessBar.set_Text(inspect.stack()[0][3])
    """select the video"""
    vc = cv2.VideoCapture(video_path)
    """basename"""
    video_name = os.path.basename(video_path)
    """judge the video is opened"""
    if vc.isOpened():
        print(video_name, "can be opened")
    else:
        print("video has been failed to open!")
        return

    """get fourcc"""
    fourcc = cv2.VideoWriter_fourcc(*"mp4v")
    """get fps"""
    fps = vc.get(cv2.CAP_PROP_FPS)
    """video width and height"""
    video_size = (int(new_frame[3] - new_frame[2]), int(new_frame[1] - new_frame[0]))
    """VideoWriter"""
    if os.path.exists(video_new_path):
        os.remove(video_new_path)
    vw = cv2.VideoWriter(video_new_path, fourcc, fps, video_size)
    """the index of the frame that has been processed"""
    image_index = 1
    """get the total frame number"""
    total_frame_number = vc.get(cv2.CAP_PROP_FRAME_COUNT)
    """get the total video time"""
    total_time = vc.get(cv2.CAP_PROP_POS_MSEC)
    """Start to premiere..."""
    print("\nStart to premiere...\n")
    ProcessBar.set_zero()
    while (image_index - 1) < total_frame_number:
        ret, frame = vc.read()
        frame = frame[new_frame[0]:new_frame[1], new_frame[2]:new_frame[3]]
        vw.write(frame)
        print(image_index)
        image_index += 1
        ProcessBar.set_Value(image_index, total_frame_number)
    print("Screen Shot process has been finished!!\n")
    """the total number of the image"""
    print(video_name, ':', image_index - 1, ' images have been transformed.')
    """release"""
    vc.release()
    vw.release()
    return video_new_path, video_name, fps, image_index - 1

----utils

----__init__.py

----check_jpg_dir.py

import os


def check_jpg_dir(video_dir_choose):
    frames = os.listdir(video_dir_choose)
    frames_number = 0
    for frame in frames:
        if frame.endswith('jpg'):
            frames_number += 1
    if frames_number == 0:
        check_flag = True
    elif frames_number == 1:
        check_flag = True
    else:
        check_flag = False
        print(frames_number, " images has been chosen.")
    return check_flag, frames_number

----ProcessBar.py

from PyQt5.QtWidgets import *


class ProcessBar(object):
    def __init__(self):
        """ProcessBar"""
        self.pbar = QProgressBar()
        self.pbar_text = QLabel()
        self.pbar_text.setText("Process :")

    def get_pbar(self):
        return self.pbar

    def get_pbar_text(self):
        return self.pbar_text

    def set_zero(self):
        self.pbar.setValue(0)

    def set_max(self):
        self.pbar.setValue(100)

    def set_Value(self, index, length, ratio=100):
        self.pbar.setValue((index - 1) / length * ratio)

    def set_Text(self, text):
        self.pbar_text.setText(str(text) + ":")

    def reset_pbar(self):
        self.pbar_text.setText("Process :")
        self.pbar.setValue(0)

----set_cwd.py

import os

def set_cwd():
    cwd = os.getcwd()

    """path for each button"""
    images_folder = {}
    images_folder['images2gif'] = cwd
    images_folder['video2images'] = cwd
    images_folder['videos2images'] = cwd
    images_folder['images2video'] = cwd

    gif_folder = {}
    gif_folder['images2gif'] = cwd

    video_folder = {}
    video_folder['video2images'] = cwd
    video_folder['videos2images'] = cwd
    video_folder['images2video'] = cwd
    video_folder['videoscreenshotload'] = cwd
    video_folder['videoscreenshotsave'] = cwd
    """The whole settings"""
    settings = {}
    settings['images_folder'] = images_folder
    settings['gif_folder'] = gif_folder
    settings['video_folder'] = video_folder

    return settings


if __name__ == '__main__':
    set_cwd()

----__init__.py

----main.py

from scripts.Form.SelectForm import *

if __name__ == '__main__':
    app = QApplication(sys.argv)
    selectform = SelectForm("format tools")
    selectform.show()
    sys.exit(app.exec_())

---

*四、界面演示

运行main.py，然后点击各个按钮

---

1.帧图像转gif——images2gif

(1)选择已经编好序号的图片文件夹（五位数编号）

(2)例如选择的帧一共是349张，选择存放的gif路径

(3)输入帧率fps，博主这里默认设置是25

(4)稍等片刻，gif生成完成

---

2.视频转帧图像——video2images

(1)选择视频

(2)选择视频帧存放的路径，即文件夹，选择完成后会自动在该文件夹下新建一个同名的文件夹，存储帧图像形式是五位数

(3)等待完成

(4)显示结果

---

3.帧图像转视频——images2video

(1)选择帧图像文件夹

(2)继续选择存放的视频文件，命名新的文件名

(3)输入帧率fps，默认为25

(4)等待完成

(5)视频生成完成(mp4，avi，mkv)

4.视频画面区域裁剪——videoscreenshot

(1)对所选的视频进行画面统一裁剪，默认(1920×1080)，具体的裁剪区域可根据需要进行修改

(2)改成只有右半边

(3)选择要裁剪的视频

(3)保存新的视频

(4)等待完成

(5)生成新视频

---

5.多个视频转帧图像——videos2images

这个就是在选择视频的时候ctrl或者shift选择多个视频，和单个视频转帧图像相同，每个视频生成对应名称的文件夹存放帧图片，不多赘述。

---

总之，先做到这里，大家可以在此基础上拿走自己想要的函数进行修改，如果有能力的也可以分享自己在这个项目中添加的新功能～