PJY-609 / simple-video-encoder

a simple H.264 video encoder by PyQt5

simple-video-encoder

a simple H.264 video encoder by PyQt5

requirements:

1. python 3.6
2. ffmpeg-python
3. ffmpeg (see the question in stackoverflow)
4. PyQt5
5. LAVFilters (see the question in stackoverflow)

run main.py

cd .\video_encoder
python main.py

user guide

1. File->Open->select the input video file

2. Settings->Set H264 Parameters

3. Encode->Begin Encode->type output filename

4. Result (CRF=40)

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MVC pattern in Python

It is my first time to use MVC pattern to write a GUI. tutorial gives a neat mini-example to explain what MVC pattern is.
Download these three .py files and run them can give a clear sense of MVC pattern

1. basics_backend.py
2. model_view_controller.py
3. mvc_exceptions.py.

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A PyQt example of video player

see tutorial

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Exceptions handling

I also learn something of exceptions handling in python. Thanks to the contributors in stackoverflow, my problem could be tackled properly. Here is my final solution,

def updateFilename(self):
    self.model.updateFilename(self.fileName)

def updateOutput(self):
    self.model.updateOutput(self.encodeDialog.output)

def encodeVideo(self):
    try:
        self.updateFilename()
        self.updateOutput()
        flag = True
    except (type_exc.PathIsEmpty, type_exc.FileAlreadyExists, type_exc.PathNotExists) as e:
        flag = False
        self.errorDialog.errorTypeChanged(e)
        self.errorDialog.exec_()

    if flag:
        self.model.encodeVideo()