1.1:imageZMQ库实现,发送端
import socket
import time
import cv2
import imagezmq
import traceback
import simplejpeg
capture=cv2.VideoCapture(0) # 获取摄像头视频
capture=cv2.VideoCapture(r"D:\project\dataset\video\测试.mp4")
192.168.100.104 为发送端主机ip地址
sender = imagezmq.ImageSender(connect_to='tcp://192.168.100.104:5555', REQ_REP=False)
rpi_name = socket.gethostname() # 获取主机名
time.sleep(2.0)
jpeg_quality = 95 #调整图片压缩质量,95%
while(True):
try:
ref, frame=capture.read(0)
time.sleep(1/60)
image = cv2.resize(frame,(1280,720))
curtime = time.time()
msg = rpi_name+'*'+str(curtime)
# 通过simplejpeg函数将图片编码为jpeg格式,提高传输效率
jpg_buffer = simplejpeg.encode_jpeg(image, quality=jpeg_quality,
colorspace='BGR')
sender.send_jpg(msg, jpg_buffer)
cv2.imshow(rpi_name, image)
cv2.waitKey(1)
except:
print(traceback.print_exc())
break
1.2:imageZMQ库实现,接收端
import cv2
import imagezmq
import traceback
import time
import simplejpeg
接收发送端数据,输入发送端的ip地址
image_hub = imagezmq.ImageHub(open_port='tcp://192.168.100.104:5555',REQ_REP=False)
frame_count = 1
time1 = 0
while True:
try:
time1 = time.time() if frame_count == 1 else time1
name, image = image_hub.recv_jpg()
# 解码
image = simplejpeg.decode_jpeg(image, colorspace='BGR')
cv2.imshow(name.split('*')[0], image)
cv2.waitKey(1)
time2 = time.time()
print(image.shape[:2], int(frame_count/(time2-time1)))
frame_count += 1
except:
print(traceback.format_exc())
break
2.1:使用TCP+opencv;就是把视频一秒钟拆成30张图片发过去,发送端
import socket
import cv2
import sys
import numpy as np
address = ('192.168.100.104', 5005) # 服务端地址和端口
ser = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ser.bind(address)
ser.listen(5)
阻塞式
print('waiting。。。')
conn, addr = ser.accept()
print('建立连接...')
print('连接对象:', addr)
cap = cv2.VideoCapture(r"D:\project\dataset\video\测试.mp4")
cap = cv2.VideoCapture(0)
frames_num=cap.get(7)
print('视频总帧数:',frames_num)
print('发送目标...')
count = 0
while cap.isOpened():
try:
data = conn.recv(1024)
data = data.decode()
if not data:
break
ret, frame = cap.read()
frame = cv2.resize(frame,(1280,720))
cv2.imshow('send', frame)
cv2.waitKey(1)
count += 1
# 数据打包有很多方式,也可以用json打包
img_encode = cv2.imencode('.jpg', frame)[1]
data_encode = np.array(img_encode)
str_encode = data_encode.tostring()
conn.sendall(str_encode)
except KeyboardInterrupt:
print('KeyboardInterrupt')
sys.exit(0)
2.2:接收端
import socket
import sys
import cv2
import numpy as np
import time
address = ('192.168.100.104', 5005) # 服务端地址和端口
cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
cli.connect(address) # 尝试连接服务端
except Exception:
print('[!] Server not found or not open')
sys.exit()
frame_count = 1
while True:
time1 = time.time() if frame_count == 1 else time1
trigger = 'ok'
cli.sendall(trigger.encode())
data = cli.recv(1024102420)
image = np.frombuffer(data, np.uint8)
image = cv2.imdecode(image,cv2.IMREAD_COLOR)
cv2.imshow('video',image)
cv2.waitKey(1)
end_time = time.time()
time2 = time.time()
print(image.shape[:2], int(frame_count / (time2 - time1)))
frame_count += 1
cli.close()