85 lines
2.8 KiB
Python
85 lines
2.8 KiB
Python
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from multiprocessing import Process
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from sharedLogging import SlaveLogger
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from flask import Flask, render_template, Response, Blueprint, redirect, url_for
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from flask_wtf import FlaskForm
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from wtforms.fields import SelectField, StringField, SubmitField
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from wtforms.validators import InputRequired
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class CamForm(FlaskForm):
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fps = SelectField(choices=[(i, '%s fps' % i) for i in range(10, 31, 5)], coerce=int)
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submitFPS = SubmitField('Set')
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class TTSForm(FlaskForm):
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tts = StringField(validators=[InputRequired()])
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submitTTS = SubmitField('Speak')
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class ResetForm(FlaskForm):
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submitReset = SubmitField('Reset')
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# TODO: fix random connection fails (might be an nginx thing)
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# TODO: show camera failed status here somewhere
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class WebInterface(Process):
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def __init__(self, camera, stateDict, ttsQueue, loggerQueue):
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self._moduleLogger = SlaveLogger(__name__, 'INFO', loggerQueue)
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self._flaskLogger = SlaveLogger('werkzeug', 'ERROR', loggerQueue)
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camPage = Blueprint('camPage', __name__, static_folder='static', template_folder='templates')
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def generateFrame():
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while 1:
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yield (b'--frame\r\n' b'Content-Type: image/jpeg\r\n\r\n' + camera.getFrame() + b'\r\n')
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@camPage.route('/', methods=['GET', 'POST'])
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@camPage.route('/index', methods=['GET', 'POST'])
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def index():
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props = camera.getProps('FPS')
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fps = int(props['FPS'])
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camForm = CamForm(fps = props['FPS'])
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ttsForm = TTSForm()
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resetForm = ResetForm()
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if camForm.validate_on_submit() and camForm.submitFPS.data:
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camera.setProps(FPS=camForm.fps.data)
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return redirect(url_for('camPage.index'))
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if ttsForm.validate_on_submit() and ttsForm.submitTTS.data:
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ttsQueue.put_nowait(ttsForm.tts.data)
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return redirect(url_for('camPage.index'))
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if resetForm.validate_on_submit() and resetForm.submitReset.data:
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camera.reset()
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return redirect(url_for('camPage.index'))
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return render_template(
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'index.html',
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camForm=camForm,
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ttsForm=ttsForm,
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resetForm=resetForm,
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fps=fps,
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state=stateDict['name']
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)
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@camPage.route('/videoFeed')
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def videoFeed():
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return Response(generateFrame(), mimetype='multipart/x-mixed-replace; boundary=frame')
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self._app = Flask(__name__)
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self._app.secret_key = '3276d68dac56985bea352325125641ff'
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self._app.register_blueprint(camPage, url_prefix='/pyledriver')
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super().__init__(daemon=True)
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def run(self):
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# TODO: not sure exactly how threaded=True works, intended to enable
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# multiple connections. May want to use something more robust w/ camera
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# see here: https://blog.miguelgrinberg.com/post/video-streaming-with-flask
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self._moduleLogger.info('Started web interface')
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self._app.run(debug=False, threaded=True)
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def stop(self):
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self.terminate()
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self.join()
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self._moduleLogger.info('Terminated web interface')
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