一、简介：
Nginx是一款轻量级的Web 服务器/反向代理服务器及电子邮件（IMAP/POP3）代理服务器。 nginx-rmtp-module是Nginx服务器的流媒体插件。nginx通过rtmp模块提供rtmp服务, ffmpeg推送一个rtmp流到nginx, 然后客户端通过访问nginx来收看实时视频流。
二、官网：
FFmpeg项目的官方网址为：https://ffmpeg.org/ nginx官网：http://nginx.org/
三、配置FFmpeg
1、解压下载的FFmpeg压缩包得到
2、进入bin文件夹获取路径
3、找到我的电脑→右击→属性→选择【高级系统设置】-->弹出框中选择【环境变量-】→找到【path】双击→弹出框中选择 【新建】→将复制的bin文件夹的路径粘贴进来点击保存。
4、验证ffmpeg的配置，调用命令行（windows+R输入cmd）输入“ffmpeg –version”，如果出现如下说明配置成功
四、nginx配置
1、下载nginx http://nginx-win.ecsds.eu/download/nginx 1.7.11.3 Gryphon.zip，下载完成后解压到需要盘符， 将解压后的目录 命名为nginx-1.7.11.3-Gryphon
2、下载nginx-rtmp-module插件 https://github.com/arut/nginx-rtmp-module/ 下载完成后解压到刚刚解压的nginx-1.7.11.3-Gryphon目录中
3、配置nginx-1.7.11.3-Gryphon文件下 conf\nginx-win-rtmp.conf 内容:
为了降低HLS的延迟，您需要设置此设置hls_fragment和hls_playlist_length，网上很多设置的hls_playlist_length为3秒，我自己验证了一下，HLS延时为5秒左右，改成1s 延时还有3秒左右 如下所示：
application hls {
live on;
hls on;
hls_path d:/tmp/hls;
hls_fragment 1s;
hls_cleanup on;
hls_playlist_length 1s;
}hls_path：hls 路径路径 设置HLS播放列表和片段目录。 如果目录不存在，它将被创建。
hls_cleanup: on｜off 默认是开着的，是否删除列表中已经没有的媒体块
hls_fragment：hls_fragment 片段时间 设置HLS片段长度。 默认为5秒。
hls_playlist_length：hls_playlist_length 时间 设置HLS播放列表长度。 默认为30秒。
解决跨域问题：
location / {
root html;
index index.html index.htm;
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
}完整nginx-win-rtmp.conf 内容如下：
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
rtmp{
server {
listen 1935;
chunk_size 4000;
#RTMP
application live {
live on;
# record first 1K of stream
record all;
record_path d:/tmp/av;
record_max_size 1K;
# append current timestamp to each flv
record_unique on;
# publish only from localhost
allow publish 127.0.0.1;
deny publish all;
#allow play all;
}
#HLS
# For HLS to work please create a directory in tmpfs (/tmp/app here)
# for the fragments. The directory contents is served via HTTP (see
# http{} section in config)
#
# Incoming stream must be in H264/AAC. For iPhones use baseline H264
# profile (see ffmpeg example).
# This example creates RTMP stream from movie ready for HLS:
#
# ffmpeg -loglevel verbose -re -i movie.avi -vcodec libx264
# -vprofile baseline -acodec libmp3lame -ar 44100 -ac 1
# -f flv rtmp://localhost:1935/hls/movie
#
# If you need to transcode live stream use 'exec' feature.
#
application hls {
live on;
hls on;
hls_path d:/tmp/hls;
hls_fragment 1s;
hls_cleanup on;
hls_playlist_length 1s;
}
application hls2 {
live on;
hls on;
hls_path d:/tmp/hls2;
hls_fragment 1s;
hls_cleanup on;
hls_playlist_length 1s;
}
application hls3 {
live on;
hls on;
hls_path d:/tmp/hls3;
hls_fragment 1s;
hls_cleanup on;
hls_playlist_length 1s;
}
application hls4 {
live on;
hls on;
hls_path d:/tmp/hls4;
hls_fragment 1s;
hls_cleanup on;
hls_playlist_length 1s;
}
}
}
http{
server {
listen 8765;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
}
location /hls {
# Serve HLS fragments
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
alias d:/tmp/hls;
expires -1;
add_header Cache-Control no-cache;
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
}
location /hls2 {
# Serve HLS fragments
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
alias d:/tmp/hls2;
expires -1;
add_header Cache-Control no-cache;
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
}
location /hls3 {
# Serve HLS fragments
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
alias d:/tmp/hls3;
expires -1;
add_header Cache-Control no-cache;
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
}
location /hls4 {
# Serve HLS fragments
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
alias d:/tmp/hls4;
expires -1;
add_header Cache-Control no-cache;
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
}
location /stat {
rtmp_stat all;
rtmp_stat_stylesheet stat.xsl;
}
location /stat.xsl {
root /usr/local/extend_module/nginx-rtmp-module/;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}4、打开cmd窗口进入nginx-1.7.11.3-Gryphon目录输入【nginx.exe -c conf\nginx-win-rtmp.conf 】 启动命令
5、打开任务管理器查看nginx服务是否启动，有如下图nginx.exe所示说明已经成功启动。
五、ffmpeg命令推送HLS流
1、打开cmd窗口进入到到ffmpeg.exe目录下，输入ffmpeg命令进行推流
--hls版本
ffmpeg -i rtsp://admin:123456@192.111.111.130:554/h264/ch4/main/av_stream -fflags flush_packets -max_delay 1 -an -flags -global_header -hls_time 1 -hls_list_size 3 -hls_wrap 3 -vcodec copy -f flv -r 25 -an rtmp://localhost:1935/hls/cctv1
2、根据D:\Windows\nginx-1.7.11.3-Gryphon\conf路径下nginx-win-rtmp.conf的配置信息查找对应的路径看是否生成HLS所需的.ts和.m3u8文件，如果生成说明推流成功
六、谷歌浏览器中，网页播放海康威视摄像头
成功播放~~~
