VolumeHandControl.py

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

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

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

detector = htm.handDetector(detectionCon=0.7, trackCon=0.8)



devices = AudioUtilities.GetSpeakers()
interface = devices.Activate(
    IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
volume = cast(interface, POINTER(IAudioEndpointVolume))
#volume.GetMute()
#volume.GetMasterVolumeLevel()
volumeRange = volume.GetVolumeRange()

minVol = volumeRange[0]
maxVol = volumeRange[1]

pTime = 0
cTime = 0
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), 15, (255, 0, 255), cv2.FILLED)
        cv2.circle(img, (x2, y2), 15, (255, 0, 255), cv2.FILLED)
        cv2.line(img, (x1, y1), (x2, y2), (255, 0, 255), 3)
        cv2.circle(img, (cx, cy), 15, (255, 0, 255), cv2.FILLED)

        length = math.hypot(x2-x1, y2-y1)
        #]print(length)

        #hand range 50- 200
        #vol range -65 - 0

        vol = np.interp(length, [50, 200], [minVol, maxVol])
        print(int(length), vol)
        volume.SetMasterVolumeLevel(vol, None)

        if length<50:
            cv2.circle(img, (cx, cy), 15, (0, 255, 0), cv2.FILLED)




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

    cv2.putText(img, f'FPS: {int(fps)}', (40, 50), cv2.FONT_HERSHEY_COMPLEX, 1, (255, 0, 0), 3)

    cv2.imshow("image", img)
    cv2.waitKey(1)