Live555 是一个为跨平台的C++开源项目,它实现了RTP/RTCP、RTSP、SIP等的支持。并且相对于其他的流媒体服务器是完全开源并且免费的。
废话不多说,下面开始。
1、首先到它的主页下载一个源码包:
我下载的是latest的,具体什么版本还真不清楚
2、放到linux目录下解压:
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root@kubuntu:/home/frank tar zxvf live555-latest.tar.gz
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root@kubuntu:/home/frank# cd live
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root@kubuntu:/home/frank/live#
3、首先尝试在PC的Linux上编译:
区别于传统的源码包,不是传统的配置方式,而是通过genMakefiles配对目录下的config.*文件生成Makefile
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root@kubuntu:/home/frank/live# ./genMakefiles linux
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root@kubuntu:/home/frank/live# make
编译很顺利,然后上网找一个*.264文件(常见的就是那个test.264在新闻报道)放在当前目录下
执行mediaServer目录下的live555MediaServer服务器原型
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root@kubuntu:/home/frank/live# ./mediaServer/live555MediaServer
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LIVE555 Media Server
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version 0.75 (LIVE555 Streaming Media library version 2012.11.08).
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Play streams from this server using the URL
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rtsp://192.168.1.41:8554/<filename>
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where <filename> is a file present in the current directory.
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Each file's type is inferred from its name suffix:
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".264" => a H.264 Video Elementary Stream file
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".aac" => an AAC Audio (ADTS format) file
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".ac3" => an AC-3 Audio file
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".amr" => an AMR Audio file
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".dv" => a DV Video file
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".m4e" => a MPEG-4 Video Elementary Stream file
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".mkv" => a Matroska audio+video+(optional)subtitles file
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".mp3" => a MPEG-1 or 2 Audio file
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".mpg" => a MPEG-1 or 2 Program Stream (audio+video) file
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".ts" => a MPEG Transport Stream file
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(a ".tsx" index file - if present - provides server 'trick play' support)
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".wav" => a WAV Audio file
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".webm" => a WebM audio(Vorbis)+video(VP8) file
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See http://www.live555.com/mediaServer/ for additional documentation.
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(We use port 8080 for optional RTSP-over-HTTP tunneling, or for HTTP live streaming (for indexed Transport Stream files only).)
通过VLC可以点播rtsp://192.168.1.41:8554/test.264视频,
(注意:test.264所在的目录要和live555MediaServer执行目录相一致,若test.264放在live目录下,则需要在live目录下执行./mediaServer/live555MediaServer)
4、交叉编译
编译器arm-hismall-linux-gcc/arm-hismall-linux-g++
同理如果通过genMakefiles生成交叉编译的Makefile,我们需要一个对应的config.*
因此我们创建一个config.hi3507,内容可以参考config.armlinux
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root@kubuntu:/home/frank/live# cat config.hi3507
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CROSS_COMPILE?= arm-hismall-linux-
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COMPILE_OPTS = $(INCLUDES) -I. -O2 -DSOCKLEN_T=socklen_t -DNO_SSTREAM=1 -D_LARGEFILE_SOURCE=1 -D_FILE_OFFSET_BITS=64
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C = c
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C_COMPILER = $(CROSS_COMPILE)gcc
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C_FLAGS = $(COMPILE_OPTS)
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CPP = cpp
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CPLUSPLUS_COMPILER = $(CROSS_COMPILE)g++
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CPLUSPLUS_FLAGS = $(COMPILE_OPTS) -Wall -DBSD=1
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OBJ = o
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LINK = $(CROSS_COMPILE)g++ -o
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LINK_OPTS =
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CONSOLE_LINK_OPTS = $(LINK_OPTS)
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LIBRARY_LINK = $(CROSS_COMPILE)ar cr
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LIBRARY_LINK_OPTS = $(LINK_OPTS)
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LIB_SUFFIX = a
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LIBS_FOR_CONSOLE_APPLICATION =
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LIBS_FOR_GUI_APPLICATION =
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EXE =
然后与在PC上编译一样,进行编译。
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root@kubuntu:/home/frank/live# ./genMakefiles hi3507
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root@kubuntu:/home/frank/live# make clean;make
这里要记得先make clean,否则因为之前在PC上编译的目标文件没清楚会导致链接失败。
编译时会产生一个错误
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In file included from MPEG4GenericRTPSink.cpp:22:
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include/Locale.hh:47:123: xlocale.h: No such file or directory
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In file included from MPEG4GenericRTPSink.cpp:22:
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include/Locale.hh:62: error: `locale_t' does not name a type
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make[1]: *** [MPEG4GenericRTPSink.o] Error 1
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make[1]: Leaving directory `/home/frank/live/liveMedia'
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make: *** [all] Error 2
这个是由于海思使用的是uClinux,并没有xlocale.h这个头文件,
而live555内部的一个locale模块调用了(见liveMeida/locale.hh),因此通过编译选项把他去掉。
修改config.hi3507,在编译选项上加入-DXLOCALE_NOT_USED=1把此模块去掉。
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CROSS_COMPILE?= arm-hismall-linux-
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COMPILE_OPTS = $(INCLUDES) -I. -O2 -DSOCKLEN_T=socklen_t -DNO_SSTREAM=1 -D_LARGEFILE_SOURCE=1 -D_FILE_OFFSET_BITS=64
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C = c
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C_COMPILER = $(CROSS_COMPILE)gcc
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C_FLAGS = $(COMPILE_OPTS)
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CPP = cpp
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CPLUSPLUS_COMPILER = $(CROSS_COMPILE)g++
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CPLUSPLUS_FLAGS = $(COMPILE_OPTS) -Wall -DBSD=1 -DLOCALE_NOT_USED
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OBJ = o
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LINK = $(CROSS_COMPILE)g++ -o
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LINK_OPTS =
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CONSOLE_LINK_OPTS = $(LINK_OPTS)
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LIBRARY_LINK = $(CROSS_COMPILE)ar cr
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LIBRARY_LINK_OPTS = $(LINK_OPTS)
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LIB_SUFFIX = a
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LIBS_FOR_CONSOLE_APPLICATION =
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LIBS_FOR_GUI_APPLICATION =
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EXE =
再次生成Makefile并编译
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root@kubuntu:/home/frank/live# ./genMakefiles hi3507
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root@kubuntu:/home/frank/live# make
编译成功!
再按照上述方法把程序放到hi3507上运行测试
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