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VolumeControl.py
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import cv2
import time
import numpy as np
import HandTrackingModule as htm
import math
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)
pTime=0
detector = htm.handDetector()
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]
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),10,(255,0,255),cv2.FILLED)
cv2.circle(img, (x2, y2), 10, (255, 0, 255), cv2.FILLED)
cv2.line(img, (x1,y1),(x2,y2),(255,0,255),2)
cv2.circle(img, (cx,cy),8,(255,0,255),cv2.FILLED)
length = math.hypot(x2-x1,y2-y1)
print(length)
# Hand Range 50 - 300
# Volume Range -65 - 0
vol = np.interp(length, [50, 300], [minVol, maxVol])
print(int(length), vol)
volume.SetMasterVolumeLevel(vol, None)
if length<50:
cv2.circle(img, (cx, cy), 8, (255, 0, 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),2)
cv2.imshow("Img", img)
cv2.waitKey(1)