win10 python ffmpeg推流到b站

1.安装ffmpeg

下载链接：「ffmpeg」https://www.aliyundrive.com/s/UoRHg9VMA8F
下载后将文件夹里面的bin文件添加到环境变量系统变量的path中。

pip install ffmpeg 
pip install ffmpy

调用命令行（windows+R输入cmd）输入“ffmpeg –version”

2.安装opencv

pip install opencv-python

3.代码

其中rtmpUrl中填入，申请到的服务器地址和串流密钥
参考链接

import subprocess as sp
import cv2 as cv
rtmpUrl = "服务器地址+串流密钥"

cap = cv.VideoCapture(0)

# Get video information
fps = int(cap.get(cv.CAP_PROP_FPS))
width = int(cap.get(cv.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv.CAP_PROP_FRAME_HEIGHT))

# ffmpeg command
command = ['ffmpeg',
           '-y',
           '-f', 'rawvideo',
           '-vcodec', 'rawvideo',
           '-pix_fmt', 'bgr24',
           '-s', "{}x{}".format(width, height),
           '-r', str(fps),
           '-i', '-',
           '-c:v', 'libx264',
           '-pix_fmt', 'yuv420p',
           '-preset', 'ultrafast',
           '-f', 'flv',
           rtmpUrl]

# 管道配置
p = sp.Popen(command, stdin=sp.PIPE)

# # read webcamera
while (cap.isOpened()):
    ret, frame = cap.read()
    if not ret:
        print("Opening camera is failed")
        break

    # process frame
    # your code
    # process frame

    # write to pipe
    p.stdin.write(frame.tostring())