VolumeControl.py

import cv2
import time
import numpy as np
import HandTrackingModule as htm
import math
from comtypes import CLSCTX_ALL
from pycaw.pycaw import AudioUtilities, IAudioEndpointVolume

# ---------------------
wCam, hCam = 640, 480

devices = AudioUtilities.GetSpeakers()
interface = devices.Activate(
 IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
volume = interface.QueryInterface(IAudioEndpointVolume)
# volume.GetMute()
# volume.GetMasterVolumeLevel()
volRange = volume.GetVolumeRange()
minVol = volRange[0]
maxVol = volRange[1]
vol = 0
volBar = 400
volPer = 0

cap = cv2.VideoCapture(0)
cap.set(3, wCam)
cap.set(4, hCam)
pTime = 0

detector = htm.handDetector(detectionCon=0.7)


while True:
 success, img = cap.read()
 img = detector.findHands(img)
 lmList = detector.findPosition(img, draw=False)
 if len(lmList) != 0:
 # print(lmList[4], lmList[8])

 x1, y1 = lmList[4][1], lmList[4][2]
 x2, y2 = lmList[8][1], lmList[8][2]
 cx, cy, = (x1 + x2) // 2, (y1 + y2) // 2

 cv2.circle(img, (x1, y1), 12, (66, 245, 87), cv2.FILLED)
 cv2.circle(img, (x2, y2), 12, (66, 245, 87), cv2.FILLED)
 cv2.line(img, (x1, y1), (x2, y2), (125, 219, 136), 3)
 cv2.circle(img, (cx, cy), 8, (66, 245, 87), cv2.FILLED)

 length = math.hypot(x2 - x1, y2 - y1)
 vol = np.interp(length, [20, 140], [minVol, maxVol])
 volBar = np.interp(length, [20, 140], [400, 150])
 volPer = np.interp(length, [20, 140], [0, 100])
 # print(int(length), vol)
 volume.SetMasterVolumeLevel(vol, None)

 if length < 30:
 cv2.circle(img, (cx, cy), 8, (255, 255, 255), cv2.FILLED)

 cv2.rectangle(img, (50, 150), (85, 400), (52, 113, 255), 2)
 cv2.rectangle(img, (50, int(volBar)), (85, 400), (52, 113, 255),
 cv2.FILLED)
 cv2.putText(img, f'{int(volPer)}%', (40, 120), cv2.FONT_HERSHEY_SIMPLEX,
 1, (52, 113, 255), 2)

 cTime = time.time()
 fps = 1/(cTime-pTime)
 pTime = cTime

 cv2.putText(img, f'FPS: {int(fps)}', (30, 50), cv2.FONT_HERSHEY_SIMPLEX,
 1, (255, 255, 255), 2)
 cv2.imshow("Image", img)
 cv2.waitKey(1)