如何减少Nginx RTMP流服务器的延迟
如何减少Nginx RTMP流服务器的延迟
提问于 2018-08-23 05:03:03
我的虚拟服务器配置了3GB内存和1个核心。
我正在通过我的NGINX服务器(作为mp4 )播放下面的示例MP4视频文件文件。我遇到了延迟问题。
这是我的nginx.conf
rtmp {
server {
listen 1935;
chunk_size 4000;
# video on demand for flv files
application live {
play /usr/local/nginx/html;
}
# video on demand for mp4 files
application live360 {
play /usr/local/nginx/html;
}
}
}
# HTTP can be used for accessing RTMP stats
http {
access_log /var/log/nginx/access-streaming.log;
error_log /var/log/nginx/error-streaming.log;
server {
# in case we have another web server on port 80
listen 8080;
# This URL provides RTMP statistics in XML
location /stat {
rtmp_stat all;
rtmp_stat_stylesheet stat.xsl;
}
location /stat.xsl {
# XML stylesheet to view RTMP stats.
# Copy stat.xsl wherever you want
# and put the full directory path here
root /usr/local/nginx/html;
}
location /hls {
# Serve HLS fragments
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
alias /tmp/app;
expires -1;
}
}
} 回答 1
Server Fault用户
发布于 2019-06-10 21:49:42
这是我的配置，我有一个rtmp服务器，在同一个服务器上有一个带有视频hls.js库的nginx，我对ffmpeg的延迟是6秒，在此之前我有15秒的延迟。
我的配置
worker_processes 1;
rtmp {
server {
listen 1935;
hls on;
hls_path /tmp/hls;
# Use HLS encryption
#hls_keys on;
# Store auto-generated keys in this location rather than hls_path
#hls_key_path /tmp/keys;
# Prepend key url with this value
#hls_key_url https://example.com/keys/;
# Change HLS key every 2 fragments
#hls_fragments_per_key 2;
application live {
live on;
# Turn on HLS
hls on;
hls_path /tmp/live/;
# Use HLS encryption
#hls_keys on;
# Store auto-generated keys in this location rather than hls_path
#hls_key_path /tmp/keys;
# Prepend key url with this value
#hls_key_url https://example.com/keys/;
# Change HLS key every 2 fragments
#hls_fragments_per_key 2;
application live {
live on;
# Turn on HLS
hls on;
hls_path /tmp/live/;
hls_fragment 1;
hls_playlist_length 10;
# disable consuming the stream from nginx as rtmp
deny play all;
hls_continuous on;
}
}
}
http {
server {
listen 8080;
location / {
# Disable cache
add_header 'Cache-Control' 'no-cache';
# CORS setup
add_header 'Access-Control-Allow-Origin' '*' always;
add_header 'Access-Control-Expose-Headers' 'Content-Length';
# allow CORS preflight requests
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Max-Age' 1728000;
add_header 'Content-Type' 'text/plain charset=UTF-8';
add_header 'Content-Length' 0;
return 204;
}
types {
application/dash+xml mpd;
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
root /tmp/live/;
}
}
}这是ffmpeg的代码
ffmpeg -re -i video.mp4 -c:v libx264 -preset veryfast -maxrate 3000k -bufsize 6000k -pix_fmt yuv420p -g 50 -c:a aac -b:a 160k -ac 2 -ar 44100 -f flv -maxrate 1.6M rtmp://192.168.1.27/live/key以及带有代码的库
var video = document.getElementById('videohls');
if(Hls.isSupported()) {
var hls = new Hls({liveSyncDuration:3});
hls.loadSource('http://192.168.1.27:8080/key.m3u8');
hls.attachMedia(video);
hls.on(Hls.Events.MANIFEST_PARSED,function() {
hls.startLoad();
video.play();
});
}
else if (video.canPlayType('application/vnd.apple.mpegurl')) {
video.src = 'http://192.168.1.27:8080/key.m3u8';
video.addEventListener('loadedmetadata',function() {
hls.autoLevelEnabled = false;
hls.loadLevel = 3;
video.play();
});
}对我来说工作得很好
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原文链接：
https://serverfault.com/questions/927613
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