android - 为什么有些人在输入和输出中分离实时流媒体协议？

例如，有些人实现

import numpy as np
import cv2
import glob
criteria = (cv2.TERM_CRITERIA_EPS + cv2.TERM_CRITERIA_MAX_ITER, 30, 0.001)
objp = np.zeros((6*7,3), np.float32)
objp[:,:2] = np.mgrid[0:7,0:6].T.reshape(-1,2)
objpoints = []
imgpoints = []
images = glob.glob('/usr/local/share/OpenCV/samples/cpp/chess*.jpg')
img = cv2.imread("2.jpg")
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

ret = False
ret, corners = cv2.findChessboardCorners(gray, (7, 6))
print (ret)

if ret == True:
    objpoints.append(objp)
    cv2.cornerSubPix(gray, corners, (11,11), (-1,-1), criteria)
    imgpoints.append(corners)

    # Draw and display the corners
    cv2.drawChessboardCorners(img, (7,6), corners, ret)
    cv2.imshow('img',img)
    cv2.imwrite('Corners_detected.jpg', img, None)
    cv2.waitKey(0)
cv2.destroyAllWindows()

ret, mtx, dist, rvecs, tvecs = cv2.calibrateCamera(objpoints, imgpoints, 
gray.shape[::-1],None,None)

img = cv2.imread('2.jpg')
h,  w = img.shape[:2]

newcameramtx, roi=cv2.getOptimalNewCameraMatrix(mtx,dist,(w,h),1,(w,h))

# undistort
dst = cv2.undistort(img, mtx, dist, None, newcameramtx)
cv2.imwrite('calibration_result.png',dst)

协议输入到服务器，然后实现RTMP协议输出。

在我看来，无论如何，在服务器上，编码HLS表单的媒体文件必须转换为RTMP格式。那他们为什么要这样做？

在输入中使用HLS效率不高吗？

为什么有些人在输入和输出中分离实时流媒体协议？

1 个答案: