VolumeCon.py

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

cap = cv2.VideoCapture(0)
detector = htm.handDetector()

pTime = 0
cTime = 0


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

while True:
    check, frame = cap.read()
    frame = detector.findHands(frame)
    lmList = detector.findPosition(frame)

    if len(lmList) != 0:
        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(frame, (x1,y1), 15, (255,0,255), cv2.FILLED)
        cv2.circle(frame, (x2,y2), 15, (255,0,255), cv2.FILLED)
        cv2.line(frame, (x1,y1), (x2,y2), (255,0,255), 3)
        cv2.circle(frame, (cx,cy), 15, (255,0,255), cv2.FILLED)

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

        vol = np.interp(length, [50,200], [minVol, maxVol])
        volBar = np.interp(length, [50,200], [400, 150])
        volPer = np.interp(length, [50,200], [0, 100])
        print(int(length), vol)
        volume.SetMasterVolumeLevel(vol, None)

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

    cv2.rectangle(frame, (50,150), (85, 400), (0,255,0), 3)
    cv2.rectangle(frame, (50,int(volBar)), (85,400), (255,0,0), cv2.FILLED)
    cv2.putText(frame, f'{int(volPer)}%', (40,450),cv2.FONT_HERSHEY_COMPLEX,1,(255,0,0),2)
    
    cTime = time.time()
    fps = 1/(cTime - pTime)
    pTime = cTime

    cv2.putText(frame, f'FPS: {int(fps)}', (20,50),cv2.FONT_HERSHEY_COMPLEX,1,(255,0,255),2)
    cv2.imshow("Output", frame)
    if cv2.waitKey(1) & 0xFF == ord("e"):
        break

cap.release
cv2.destroyAllWindows()