Ubuntu 12.04
nginx 1.2.4
avconv -version
avconv version 0.8.10-4:0.8.10-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers built on Feb 6 2014 20:56:59 with gcc 4.6.3 avconv 0.8.10-4:0.8.10-0ubuntu0.12.04.1 libavutil 51. 22. 2 / 51. 22. 2 libavcodec 53. 35. 0 / 53. 35. 0 libavformat 53. 21. 1 / 53. 21. 1 libavdevice 53. 2. 0 / 53. 2. 0 libavfilter 2. 15. 0 / 2. 15. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 52. 0. 0 / 52. 0. 0
我正在使用avconv和nginx创建一个HLS流,但是现在我的延迟通常超过30秒.经过多次阅读后,我意识到HLS已经内置了延迟,预计会有10秒甚至是首选,但30秒似乎非常极端.
我已经看过很多关于nginx-rtmp谷歌群的讨论,特别是这个帖子有很多建议.我试图通过减少hls_fragment
和减少解决我的问题,hls_playlist_length
但他们没有产生重大影响.
nginx.conf:
#user nobody; worker_processes 1; error_log logs/error.log debug; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; server { listen 8888; server_name localhost; add_header 'Access-Control-Allow-Origin' "*"; location /hls { types { application/vnd.apple.mpegurl m3u8; video/mp2t ts; } root /tmp; } # rtmp stat location /stat { rtmp_stat all; rtmp_stat_stylesheet stat.xsl; } location /stat.xsl { # you can move stat.xsl to a different location root /usr/build/nginx-rtmp-module; } # rtmp control location /control { rtmp_control all; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } } rtmp { server { listen 1935; ping 30s; notify_method get; application myapp { live on; hls on; hls_path /tmp/hls; hls_base_url http://x.x.x.x:8888/hls/; hls_sync 2ms; hls_fragment 2s; #hls_variant _low BANDWIDTH=160000; #hls_variant _mid BANDWIDTH=320000; #hls_variant _hi BANDWIDTH=640000; } } }
avconv命令:
avconv -r 30 -y -f image2pipe -codec:v mjpeg -i - -f flv -codec:v libx264 -profile:v baseline -preset ultrafast -tune zerolatency -an -f flv rtmp://127.0.0.1:1935/myapp/mystream
编辑
我知道这不是avconv,因为我也在使用nginx生成RTMP流.该RTMP流具有非常小的延迟(几秒).