Use Nginx+ffmpeg to build HLS live Transcoding server

Objective: To enable the Nginx support RTMP protocol to push the stream, and support HLS distribution function and FFmpeg transcoding multi-bit rate function.

First, the preparatory work
Module: Nginx-rtmp-module-master (rtmp protocol support)
:
http://nginx.org
Https://github.com/arut/nginx-rtmp-module

1. Install the dependent package:
#yum-y install gcc glibc glibc-devel make nasm pkgconfig lib-devel openssl-devel expat-devel gettext-devel libtool mhash. x86_64 perl-digest-sha1.x86_64 gcc-c++ wget XZ perl-extutils-makemaker Package

2. Install the Git tool:
#mkdir Soft-source
#cd Soft-source
#wget http://codemonkey.org.uk/projects/git-snapshots/git/git-latest.tar.xz

#xz-d git-latest.tar.xz
#tar XVF Git-latest.tar
#cd git-2016-06-20/
#autoconf
#./configure
#make && make Install
# git--version
git version 2.9.0
#cd:

3. Install ffmpeg and its dependent packages:
++++++++yasm+++++++++++
#wget http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz
#tar XZVF yasm-1.2.0.tar.gz
#cd yasm-1.2.0
#./configure
#make
#make Install
#cd:
++++++++x264+++++++++++
#git Clone git://git.videolan.org/x264
#cd x264
#./configure--enable-shared
#make
#make Install
#cd:

++++++++lame+++++++++++
#wget http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz
#tar XZVF lame-3.99.5.tar.gz
#cd lame-3.99.5
#./configure--enable-nasm
#make
#make Install
#cd:
++++++++libogg+++++++++++
#wget http://downloads.xiph.org/releases/ogg/libogg-1.3.0.tar.gz
#tar XZVF libogg-1.3.0.tar.gz
#cd libogg-1.3.0
#./configure
#make
#make Install
#cd:
++++++++libvorbis+++++++++++

Echo/usr/local/lib >>/etc/ld.so.conf; Ldconfig

#wget http://downloads.xiph.org/releases/vorbis/libvorbis-1.3.3.tar.gz
#tar XZVF libvorbis-1.3.3.tar.gz
#cd libvorbis-1.3.3
#./configure
#make
#make Install
#cd:
++++++++libvpx+++++++++++
#git Clone Http://git.chromium.org/webm/libvpx.git
#cd LIBVPX
#./configure--enable-shared
#make
#make Install
#cd:
++++++++faad2+++++++++++
#wget http://downloads.sourceforge.net/project/faac/faad2-src/faad2-2.7/faad2-2.7.tar.gz
#tar ZXVF faad2-2.7.tar.gz
#cd faad2-2.7
#./configure
#make
#make Install
#cd:
++++++++faac+++++++++++
#wget http://downloads.sourceforge.net/project/faac/faac-src/faac-1.28/faac-1.28.tar.gz
#tar ZXVF faac-1.28.tar.gz
#cd faac-1.28
#./configure
#make
#make Install
#cd:

"Error Handling"

Error encountered while compiling FAAC-1.28:

Mpeg4ip.h:126:error:new declaration ' char* strcasestr (const char*, const char*) '

Workaround:

Start modifying this file from 123 lines to the end of line 129 mpeg4ip.h.
Before modification:
#ifdef __cplusplus
extern "C" {
#endif
Char *strcasestr (const char *haystack, const char *needle);
#ifdef __cplusplus
}
#endif

After modification:
#ifdef __cplusplus
extern "C + +" {
#endif
const char *STRCASESTR (const char *haystack, const char *needle);
#ifdef __cplusplus
}
#endif

++++++++xvid+++++++++++
#wget http://downloads.xvid.org/downloads/xvidcore-1.3.2.tar.gz
#tar ZXVF xvidcore-1.3.2.tar.gz
#cd Xvidcore/build/generic
#./configure
#make
#make Install
Cd.. /.. /.. /

++++++++ffmpeg+++++++++++
#git Clone Git://source.ffmpeg.org/ffmpeg
#cd FFmpeg
#./configure--prefix=/opt/ffmpeg/--enable-version3--enable-libvpx--enable-libfaac--enable-libmp3lame-- Enable-libvorbis--enable-libx264--enable-libxvid--enable-shared--ENABLE-GPL--enable-postproc--enable-nonfree-- Enable-avfilter--enable-pthreads
#make && make Install
#cd:
"Error Handling"

If prompted LIBVPX decoder version must be >=0.91, please search for libvpx-v1.1.0.tar.bz download from Baidu.

Bzip2-d libvpx-v1.1.0.tar.bz2

Tar xvf libvpx-v1.1.0.tar.bz2

CD libvpx-v1.1.0

./configure--enable-shared--ENABLE-VP8

Make

Make install

Modify the/etc/ld.so.conf as follows:
Include ld.so.conf.d/*.conf
/lib
/lib64
/usr/lib
/usr/lib64
/usr/local/lib
/usr/local/lib64
/opt/ffmpeg/lib
#ldconfig

Description

Dynamic loader finds shared libraries to rely on two files-/etc/ld.so.conf and/etc/ld.so.cache.

After the installation is complete, FFmpeg is located in the /opt/ffmpeg/bin directory.

Second, the installation of Nginx related modules

1. Environmental preparedness

Yum Install–y pcre Pcre-devel

Yum install–y zlib Zlib-devel

2. Download Nginx and rtmp module

wget http://nginx.org/download/nginx-1.6.2.tar.gz

Tar xzvf nginx_1.6.2.tar.gz

git clone git://github.com/arut/nginx-rtmp-module.git

3. Compiling nginx-rtmp

./configure--prefix=/usr/local/nginx--add-module=.. /nginx-rtmp-module--with-http_stub_status_module

Make

Make install

After the installation is complete, Nginx is located in the/usr/local/nginx/sbin directory, the configuration file nginx.conf in the/usr/local/nginx/conf directory

++++++++ test if Nginx is installed correctly +++++++++++

#cd/usr/local/nginx

#./sbin/nginx-c./conf/nginx.conf

Open the Web page http://localhost, if the display welcome means the installation is correct, if not shown, please check the Nginx log.

++++++++ Test rtmp+++++++++++

Modify the contents of the/usr/local/nginx/conf/nginx.conf as follows:

#debug
Daemon off;
Master_process off;

Error_log./error.log Debug;
events{
Worker_connections 1024;
}

rtmp{
server {
Listen 1935;
Chunk_size 4000;

#live
Application MyApp {
Live on;
}

}

Download an rtmp push flow tool from the Internet, I use the OBS (Open broadcaster Software), start pushing the stream rtmp://your_ip/myapp/test, using the player (http://www.cutv.com/demo/ LIVE_TEST.SWF) to see if it is OK.

++++++++ test HLS slicing function +++++++++++

Modify the contents of the/usr/local/nginx/conf/nginx.conf as follows:

#debug
Daemon off;
Master_process off;

Error_log./error.log Debug;
events{
Worker_connections 1024;
}

rtmp{
server {
Listen 1935;
Chunk_size 4000;

#live
Application MyApp {
Live on;

HLS on;
Hls_path/tmp/hls;
hls_fragment 2s;
Hls_playlist_length 6s;

}
}
}

#HTTP
http{
server {
Listen 80;

#welcome
Location/{
root HTML;
Index index.html index.htm;
}

#hls
Location/hls {
Types {
APPLICATION/VND.APPLE.MPEGUSR m3u8;
VIDEO/MP2T ts;
}
root/tmp;
Add_header Cache-control No-cache;
}
}
}

Use the player on the VLC or ipad to view the http://yourip/hls/test.m3u8.

++++++++ testing ffmpeg transcoding function +++++++++++

Modify the contents of the/usr/local/nginx/conf/nginx.conf as follows:

#debug
Daemon off;
Master_process off;

Error_log./error.log Debug;
events{
Worker_connections 1024;
}

rtmp{
server {
Listen 1935;
Chunk_size 4000;

#live
Application MyApp {
Live on;

Exec/opt/ffmpeg/bin/ffmpeg-i rtmp://localhost/myapp/$name
-c:a copy-c:v libx264-b:v 512k-g 30-f flv rtmp://localhost/hls/$name _low;
}

Application HLS {

Live on;

HLS on;
Hls_path/tmp/hls;
Hls_nested on;
hls_fragment 2s;
Hls_playlist_length 6s;

Hls_variant _hi bandwidth=640000;

}
}
}

#HTTP
http{
server {
Listen 80;

        #welcome
        location/{
            root   html;
            index  index.html index.htm;
       }

#hls
Location/hls {
Types {
APPLICATION/VND.APPLE.MPEGUSR m3u8;
VIDEO/MP2T ts;
}
root/tmp;
Add_header Cache-control No-cache;
}
}
}

When using FFmpeg transcoding,

Exec/opt/ffmpeg/bin/ffmpeg-i rtmp://localhost/myapp/$name
-c:a copy-c:v libx264-b:v 512k-g 30-f flv rtmp://localhost/hls/$name _low;

Only transcoding the video, not processing the audio, while the stream from MyApp to HLS, Hls_variant will generate a multi-bitrate m3u8 file, while the tile file into the Test_low directory, access to multi-bitrate, direct access to Http://yourip/hls /test.m3u8, the corresponding bitstream is accessed based on the content implemented in this m3u8, in this case the actual stream URL is http://yourip/hls/test_low/index.m3u8

Use Nginx+ffmpeg to build HLS live Transcoding server