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關(guan)于mplayer移植網(wang)上資料(liao)很多，但都(dou)很混亂。在此(ci)，我做(zuo)了一個關(guan)于mplayer 的詳細總結(jie)。在做(zuo)之前(qian)好在解壓源碼(ma)包后，先(xian)通(tong)過./configure --help看一下相關(guan)配(pei)置(zhi)。

X86的(de)LINUX上已經自帶(dai)了解碼(ma)庫(ku)(ku)，不需要(yao)另(ling)(ling)外安裝解碼(ma)庫(ku)(ku)，而arm平臺自己做的(de)文件(jian)系(xi)統沒有(you)解碼(ma)庫(ku)(ku)，需要(yao)另(ling)(ling)外安裝解碼(ma)庫(ku)(ku)。

下載MPlayer:MPlayer-1.0rc2.tar.bz2
        解碼庫：libmad-0.15.0b.tar.gz

一、在x86的LINUX上安裝mplayer

1 #./configure （./configure    --enable-gui    –-enable-live    –-language=zh ）
        2 #make
        3 #make install

此時在MPlayer-1.0rc2目錄下會生成可執行文件mplayer.
        把它拷貝到/bin/目錄下。要執行時：
        #/bin/mpalyer /路徑/要播放的媒體文件名；
        #/bin/mplayer a.mp3

二、移植mplayer到arm平臺的LINUX上（使用4.3.2編譯器）

1 配置安裝libmad

(如果不先配置安裝libmad，則在make mplayer時出現找不到mad.h 錯誤)
        echo PATH=/usr/local/arm/3.3.2/bin:$PATH

(1)#./configure --enable-fpm=arm --host=arm-none-linux-gnueabi --disable-shared --disable-debugging        --prefix=/usr/local/arm/3.3.2/lib CC=arm-none-linux-gnueabi-gcc

參數解析：
        --enable-fpm=arm 
        --host=arm-none-linux-gnueabi
        --disable-shared 
        --disable-debugging 
        --prefix=/home/linux/libmad(make install 安裝路徑)
        CC=arm-none-linux-gnueabi-gcc(4.3.2的(de)交叉編譯工具鏈)

(2)#make

注意(yi)如(ru)果(guo)出現error:unrecognized command line option "-fforce-mem";錯誤，需要修改makefile,去(qu)掉--fforce-mem標志(因為arm-eabi編譯器(qi)都不支持這(zhe)個(ge)選項)

(3)#make install

此時會在/home/linux目錄下生成include目錄和lib目錄。
        其中liclude目錄下有文件 mad.h
        lib 目錄有文件 libmad.a libmad.la

2 配置安裝(zhuang)mplayer

(1)#./configure    --host-cc=gcc    --cc=arm-none-linux-gnueabi-gcc    --target=arm-linux    --enable-static    --enable-ossaudio    --prefix=/tmp/mplayer-rc2     --disable-win32dll    --disable-dvdread    --enable-fbdev    --disable-mencoder    --disable-live --disable-mp3lib --enable-mad --enable-libavcodec_a    --disable-armv5te    --disable-armv6    --disable-dvdnav    --disable-dvdread    --disable-dvdread-internal        with-extraincdir=/usr/local/arm/3.3.2/lib/include        --with-extralibdir=/usr/local/arm/3.3.2/lib/lib

參數解析：
        --host-cc=gcc         # C compiler for tools needed while building [gcc]
        --cc=arm-none-linux-gnueabi-gcc        #C compiler to build MPlayer [gcc]
        --target=arm-linux        #target platform (i386-linux, arm-linux, etc)
        --enable-static        #build a statically linked binary
        --enable-ossaudio        #enable OSS audio output [autodetect]
        --prefix=/tmp/mplayer-rc2        #prefix directory for installation [/usr/local]
        --disable-win32dll         # disable Win32 DLL support [enabled]
        --disable-dvdread        #disable libdvdread [autodetect]
        --enable-fbdev        #enable FBDev video output [autodetect]
        --disable-mencoder        #disable MEncoder (A/V encoder) compilation [enable] 使能編碼器編輯
        --disable-live        #disable LIVE555 Streaming Media [autodetect] 讓Mpalyer不支持流媒體協議
        --disable-mp3lib        # disable builtin mp3lib [enabled]
        --enable-mad        #disable libmad (MPEG audio) support [autodetect]
        --enable-libavcodec_a        #disable static libavcodec [autodetect]
        --disable-armv5te        #disable DSP extensions (ARM) [autodetect]
        --disable-armv6        #disable ARMv6 (ARM) [autodetect]
        --with-extraincdir=/usr/local/arm/3.3.2/lib/include        #指明mad.h文件所在路徑
        --with-extralibdir=/usr/local/arm/3.3.2/lib/lib        #指(zhi)明(ming)limad相關鏈接庫所在路(lu)徑

(2)#make

其(qi)中可能(neng)會遇到如下(xia)問題：

1.Error:motion_comp_arm_s.S

在libmpeg2/motion_comp_arm_s.S文件的(de)前面加(jia)上如(ru)下(xia)的(de)內(nei)容(rong)：

#ifndef HAVE_PLD
        .macro pld reg
        .endm
        #endif

2.vo_ivtv.c:79: error: storage size of ’sd’ isn’t known

vo_ivtv.c:80: error: storage size of ’sd1′ isn’t known

添加--disable-ivtv

3. undefined reference to `video_out_ivtv'

在文件 file libvo/video_out.c, 找到
        #ifdef HAVE_DXR2
        extern vo_functions_t video_out_dxr2;
        #endif
        extern vo_functions_t video_out_dxr3; 
        #ifdef HAVE_IVTV
        extern vo_functions_t video_out_ivtv;
        #endif 
        edit it like this:
        #ifdef HAVE_DXR2
        extern vo_functions_t video_out_dxr2;
        #endif
        #ifdef HAVE_DXR3    //這一句是要添加的
        extern vo_functions_t video_out_dxr3; 
        #endif    //這句是要添加的
        #ifdef HAVE_IVTV
        extern vo_functions_t video_out_ivtv;
        #endif

使用arm-linux-gcc 3.3.2編譯mplayer可能(neng)會出(chu)現in.h頭文件錯誤如(ru)下(xia)：

/usr/local/arm/3.3.2/include/netinet/in.h:259: parse error before '(' token
        /usr/local/arm/3.3.2/include/netinet/in.h:259: parse error before "__u32"
        /usr/local/arm/3.3.2/include/netinet/in.h:260: parse error before '(' token
        /usr/local/arm/3.3.2/include/netinet/in.h:260: parse error before "__u16"
        /usr/local/arm/3.3.2/include/netinet/in.h:262: parse error before '(' token
        /usr/local/arm/3.3.2/include/netinet/in.h:262: parse error before "__u32"

需要修改一下/usr/local/arm/3.3.2/include/netinet/in.h中,在(zai) __BEGIN_DECLS 后(hou)面增加下述文字

#undef ntohl
        #undef ntohs
        #undef htonl
        #undef htons

(3) make install(出現提示不(bu)認(ren)(ren)識的(de)文件(jian)。因為(wei)是(shi)ARM平(ping)臺運行的(de)文件(jian)，所有不(bu)認(ren)(ren)識)

install -m 755 -s mplayer /tmp/mplayer-rc2/bin
        strip: Unable to recognise the format of the input file `/tmp/mplayer-rc2/bin/mplayer'
        此時在MPlayer-1.0rc2目錄下會生成可執行文件mplayer.
        把它拷貝(bei)到(dao)/bin/目錄下。

要執行時：

#/bin/mpalyer /路徑/要播放的媒體文件名；
        #/bin/mplayer -ac mad a.mp3

三、MPlayer slave命令

在(zai)命(ming)令(ling)中(zhong)(zhong)添加 -slave 和 -quiet就可以通(tong)過(guo)命(ming)令(ling)設(she)置Mplayer實現(xian)相應的(de)功能。在(zai)mplayer源(yuan)碼中(zhong)(zhong)的(de)，/DOCS/tech/slave.txt中(zhong)(zhong)對(dui)這些命(ming)令(ling)有詳細的(de)解析。

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