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吹神小站

坚定不移,战斗到底。

零、前言

前面其实说过了,我要做视音频转换器,终于在旅途的车上挤出来了这段代码。

土土作为头号测试员(小白鼠),表示非常满意。

一、代码

以下是main.py的代码:

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import sys
import pathlib
from pydub import AudioSegment
from gui import Ui_MainWindow
from PySide6.QtWidgets import QMainWindow, QApplication, QFileDialog, QMessageBox
from PySide6 import QtCore
import cv2

QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)
MUSIC = ["MP3", "FLAC", "WAV", "OGG", "WMA", "M4A"]
VIDEO = ["MP4", "FLV", "MOV", "WMV", "AVI"]
loadtext = """食用说明:
1. 文件的保存位置一般为原文件位置。
2. 部分格式之间的互换未经过完整测试。
3. 支持视频转视频,视频转音频,音频转音频。
4. 请勿作死尝试将音频转成视频。
5. 未在Windows/Linux上经过测试,理论上支持这两个平台。
6. 有bug可反馈至作者博客: https://chuishen.cf/。
7. 请通过源代码安装的用户自行安装ffmpeg。地址: https://ffmpeg.org/。
8. 支持导出的文件格式有: MP3, FLAC, WAV, OGG, WMA, M4A, MP4, FLV, MOV, WMV, AVI等,支持导入的文件格式更加多样,且未来将支持更多导出格式。"""

class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.ui.TransNow.clicked.connect(self.tran)
self.ui.ChooseFile.clicked.connect(self.choicebox)
self.filename = None
self.func = None
QMessageBox.information(self, "食用说明", loadtext, QMessageBox.Ok)

def fext(self, f):
file_extension = pathlib.Path(f).suffix
EXT = file_extension.strip('.')
return EXT

def to_video(self, filepath, input_type, output_type):
try:
cap = cv2.VideoCapture(filepath)
frame_cnt = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
weight = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
fps = int(cap.get(cv2.CAP_PROP_FPS))
size = (weight, height)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter(filepath+"."+output_type, fourcc, fps, size)
for n in range(frame_cnt):
_, frame = cap.read()
out.write(frame)
if cv2.waitKey(10) & 0xFF == ord('q'):
break
cap.release()
out.release()
return 1
except:
return 0

def to_audio(self, filepath, input_type, output_type):
try:
song = AudioSegment.from_file(filepath)
print(song)
filename = filepath.split(".")[-2]
song.export(f"{filename}.{output_type}", format=f"{output_type}")
return 1
except Exception as e:
return 0

def choicebox(self):
filePath, _ = QFileDialog.getOpenFileName(self, "选择音乐、视频", ".", "*")
self.file = filePath

def tran(self):
text = self.ui.comboBox.currentText()
suffix = self.fext(self.file).upper()
if text in MUSIC:
self.func = self.to_audio
elif text in VIDEO:
self.func = self.to_video
if self.func(self.file, suffix, text) == 0:
QMessageBox.information(self, "出错啦!", "出错啦!请检查配置与输入有无错误。", QMessageBox.Ok)
else:
QMessageBox.information(self, "成功!", "成功!", QMessageBox.Ok)

if __name__ == "__main__":
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec())

以下是gui.py的代码:

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from PySide6.QtCore import QCoreApplication, QMetaObject, QRect
from PySide6.QtGui import QFont
from PySide6.QtWidgets import QComboBox, QLabel, QPushButton, QWidget

class Ui_MainWindow(object):
def setupUi(self, MainWindow):
if not MainWindow.objectName():
MainWindow.setObjectName(u"MainWindow")
MainWindow.resize(302, 108)
self.centralwidget = QWidget(MainWindow)
self.centralwidget.setObjectName(u"centralwidget")
self.comboBox = QComboBox(self.centralwidget)
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.setObjectName(u"comboBox")
self.comboBox.setGeometry(QRect(70, 60, 101, 31))
font = QFont()
font.setFamilies([u"Weibei SC"])
font.setPointSize(14)
font.setBold(True)
font.setItalic(False)
self.comboBox.setFont(font)
self.label = QLabel(self.centralwidget)
self.label.setObjectName(u"label")
self.label.setGeometry(QRect(10, 60, 71, 31))
font1 = QFont()
font1.setFamilies([u"Weibei SC"])
font1.setPointSize(18)
font1.setBold(True)
self.label.setFont(font1)
self.TransNow = QPushButton(self.centralwidget)
self.TransNow.setObjectName(u"TransNow")
self.TransNow.setGeometry(QRect(180, 60, 111, 41))
font2 = QFont()
font2.setFamilies([u"Weibei SC"])
font2.setPointSize(24)
font2.setBold(True)
self.TransNow.setFont(font2)
self.label_2 = QLabel(self.centralwidget)
self.label_2.setObjectName(u"label_2")
self.label_2.setGeometry(QRect(10, 10, 211, 41))
font3 = QFont()
font3.setFamilies([u"Weibei SC"])
font3.setPointSize(24)
font3.setBold(True)
font3.setItalic(False)
font3.setUnderline(False)
font3.setStrikeOut(False)
self.label_2.setFont(font3)
self.ChooseFile = QPushButton(self.centralwidget)
self.ChooseFile.setObjectName(u"ChooseFile")
self.ChooseFile.setGeometry(QRect(180, 10, 111, 41))
self.ChooseFile.setFont(font2)
MainWindow.setCentralWidget(self.centralwidget)

self.retranslateUi(MainWindow)

QMetaObject.connectSlotsByName(MainWindow)
# setupUi

def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(QCoreApplication.translate("MainWindow", u"Van能转换器", None))
self.comboBox.setItemText(0, QCoreApplication.translate("MainWindow", u"MP4", None))
self.comboBox.setItemText(1, QCoreApplication.translate("MainWindow", u"MP3", None))
self.comboBox.setItemText(2, QCoreApplication.translate("MainWindow", u"FLV", None))
self.comboBox.setItemText(3, QCoreApplication.translate("MainWindow", u"MOV", None))
self.comboBox.setItemText(4, QCoreApplication.translate("MainWindow", u"FLAC", None))
self.comboBox.setItemText(5, QCoreApplication.translate("MainWindow", u"OGG", None))
self.comboBox.setItemText(6, QCoreApplication.translate("MainWindow", u"WMA", None))
self.comboBox.setItemText(7, QCoreApplication.translate("MainWindow", u"AVI", None))
self.comboBox.setItemText(8, QCoreApplication.translate("MainWindow", u"WMV", None))
self.comboBox.setItemText(9, QCoreApplication.translate("MainWindow", u"WAV", None))
self.comboBox.setItemText(10, QCoreApplication.translate("MainWindow", u"M4A", None))

self.label.setText(QCoreApplication.translate("MainWindow", u"\u8f6c\u5316\u4e3a\uff1a", None))
self.TransNow.setText(QCoreApplication.translate("MainWindow", u"\u5f00\u59cb\u8f6c\u6362", None))
self.label_2.setText(QCoreApplication.translate("MainWindow", u"Van\u80fd\u8f6c\u6362\u5668", None))
self.ChooseFile.setText(QCoreApplication.translate("MainWindow", u"\u9009\u62e9\u6587\u4ef6", None))

二、结语

我对于某些很无聊的线上转换网站感到很不快,明明是「免费」的,却要加广告,上传下载速度都慢,结果到最后下载的时候一个503代码,浪费了我生命中的十分钟。

我之所以一直在做轻量的实用工具,实际上也只是因为现在的服务太臃肿,我和某些人需要而已,事实上,很多人可以忍受这种虚假的免费,但我们不能。

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