soloman 2.3

For the love of python and qml

soloman

For the love of python and qml

Change Log

version 2.3

• Add helper functions for OpenCV users to handle frames per second rates.

refer to milestone

Installation

pip install soloman

Python Usage

Show cv2 frame

example.py

import sys
import cv2
import threading
from time import sleep

from PyQt5.QtGui import QGuiApplication
from PyQt5.QtQml QQmlApplicationEngine
import soloman

app = QGuiApplication(sys.argv)

# Create a QML engine.
engine = QQmlApplicationEngine()
engine.quit.connect(app.quit)
engine.load(QUrl('example.qml'))

# Get SVideo
vid = soloman.Video(engine)
vid.get_SVideo('screen_01')  # objectName goes here

# Capture
capture = cv2.VideoCapture(0)  # capture camera

def start_capt():
    # start thread
    o_thread = threading.Thread(target=_start_capt)
    o_thread.daemon = True
    o_thread.start()

def _start_capt():

    while True:

        ret, frame = capture.read()

        if not ret:
            break

        vid.show_frame(frame)
        sleep(1/24)

# Call to start capturing
start_capt()

# Run the app
ret_value = app.exec_()
capture.release()
sys.exit(0)

example.qml

import QtQuick 2.14
import QtQuick.Controls 2.14
import solomon 2.2

ApplicationWindow {
	visible: true
	width: 800
	height: 500

    SVideo {
        objectName: "screen_01"  // declare objectName to be used in python
    }

}

Play audio

from soloman import Audio


aud = Audio()
aud.play('/path/to/music.mp3')

Qml Usage

example.py

import soloman
...
engine = QQmlApplicationEngine()
...
engine.load('example.qml')

Play audio

example.qml

import QtQuick 2.14
...
import soloman 2.2

SAudio {
    id: aud
}

Button {
    text: "Play"
    onClicked: aud.play('path/to/music.mp3')
}

Play videos

example.qml

Play a video file

import QtQuick 2.14
...
import soloman 2.1

SVideo {
    id: vid
}

Button {
    text: "Play video"
    onClicked: vid.play('path/to/video.mp4')
}

Play stills

Option one

...
    onClicked: vid.play('path/to/video_stills_01.jpg') # possibly the first image
...

Option two

...
    onClicked: vid.play('path/to/') # make sure folder contains only stills
...

Wiki

The wiki can be located here