codec engine代码阅读一---根目录下的package.xdc

原文地址：http://alphamailpost.blog.163.com/blog/static/20111808120127219102039/

codec engine代码是适用于XDC tools而写的，因此看代码之前要对XDC tools有一些基本的了解，可以参考:TI XDC工具入门简介

Package.xdc -------------描述该包的名称，版本信息，依赖文件，模块信息等

不看版权声明部分，正文的第一行应该是：

/* This "requires" list describes what packages to import into this bundle */
requires ti.sdo.ce;
requires ti.sdo.ce.node;
requires ti.sdo.ce.ipc;
requires ti.sdo.ce.ipc.bios;
requires ti.sdo.ce.ipc.dsplink;
requires ti.sdo.ce.ipc.dsplink.dsp;
requires ti.sdo.ce.ipc.linux;
requires ti.sdo.ce.ipc.noOS;

下面是好多行的requires语句。注释内部说：这个requires列表描述的是要包含到这个bundle里面的包们。
requires列表下面也没什么内容了，全部内容是：

/*!
 *  ======== codec_engine ========
 *  The Codec Engine product package.  //codec engine产品包
 *
 *  This package is a "bundle" of packages required to use the Codec Engine//这个包是一个要使用codec engine api来运行
 *  API's to run algorithms.  It also includes packages required to add new  //算法所需要的包的bundle.这也包含了一些
 *  algorithms to a system using the Codec Engine.                                     //加使用codec engine的系统增加新算法所需的包.
 *
 */
package codec_engine_2_23_01 [1, 0, 0] {
}                //这个结构的含义还不了解.

bundle本意是包,捆.实际上这里说的就是包的集合.

然后我们看都require一些什么:

requires ti.sdo.ce;   //ce-codec engine
requires ti.sdo.ce.node; //codec engine节点
requires ti.sdo.ce.ipc;    //ipc=inter process communication 进程间通信的包.
requires ti.sdo.ce.ipc.bios;  //进程间通信的bios部分
requires ti.sdo.ce.ipc.dsplink;  //进程间通信用到的dsplink
requires ti.sdo.ce.ipc.dsplink.dsp; //进程间通信用到的dsplink中的dsp部分
requires ti.sdo.ce.ipc.linux;   //进程间通信的linux部分
requires ti.sdo.ce.ipc.noOS;  //无操作系统情况下的进程间通信.
requires ti.sdo.ce.osal;   //这个不懂 //osal 是将ce的代码和操作系统隔开的层，只留出几个接口供应用程序使用
requires ti.sdo.ce.osal.bios;
requires ti.sdo.ce.osal.linux;
requires ti.sdo.ce.osal.noOS;
requires ti.sdo.ce.alg;   //alg=algorithm 算法
requires ti.sdo.ce.trace; //调试追踪
requires ti.sdo.ce.speech; //语音部分
requires ti.sdo.ce.speech1; 
requires ti.sdo.ce.video;  //视频部分
requires ti.sdo.ce.video1;
requires ti.sdo.ce.video2;
requires ti.sdo.ce.audio;  //音频部分
requires ti.sdo.ce.audio1;
requires ti.sdo.ce.global; //全局部分
requires ti.sdo.ce.image; //图像部分
requires ti.sdo.ce.image1;
requires ti.sdo.ce.universal;
requires ti.sdo.ce.vidtranscode;  //视频转码
requires ti.sdo.ce.vidanalytics;  //视频分析
requires ti.sdo.ce.video2.split; //视频分割

requires ti.sdo.ce.bioslog;  //bios日志

requires ti.sdo.ce.utils; //附加工具
requires ti.sdo.ce.utils.trace;//附加工具的调试部分
requires ti.sdo.ce.utils.xdm;

requires ti.dsplink.utils.lad;
requires ti.dsplink.utils.ladclient;

requires ti.sdo.ce.examples.codecs;//示例编解码器
requires ti.sdo.ce.examples.codecs.viddec1_copy;//示例视频编码器
requires ti.sdo.ce.examples.codecs.videnc1_copy;
requires ti.sdo.ce.examples.codecs.imgdec1_copy;//示例图像编解码器
requires ti.sdo.ce.examples.codecs.imgenc1_copy;
requires ti.sdo.ce.examples.codecs.sphdec1_copy;//示例语音编解码器
requires ti.sdo.ce.examples.codecs.sphenc1_copy;
requires ti.sdo.ce.examples.codecs.auddec1_copy;//示例音频编解码器
requires ti.sdo.ce.examples.codecs.audenc1_copy;
requires ti.sdo.ce.examples.codecs.auddec1_ires; //音频资源
requires ti.sdo.ce.examples.codecs.viddec2_copy;

requires ti.sdo.ce.examples.codecs.viddec_copy;
requires ti.sdo.ce.examples.codecs.videnc_copy;
requires ti.sdo.ce.examples.codecs.imgdec_copy;
requires ti.sdo.ce.examples.codecs.imgenc_copy;
requires ti.sdo.ce.examples.codecs.sphdec_copy;
requires ti.sdo.ce.examples.codecs.sphenc_copy;
requires ti.sdo.ce.examples.codecs.auddec_copy;
requires ti.sdo.ce.examples.codecs.audenc_copy;

requires ti.sdo.ce.examples.codecs.g711;
requires ti.sdo.ce.examples.codecs.scale;
requires ti.sdo.ce.examples.codecs.vidtranscode_copy;
requires ti.sdo.ce.examples.codecs.vidanalytics_copy;

requires ti.sdo.ce.examples.codecs.viddec2split_copy;
requires ti.sdo.ce.examples.codecs.universal_copy;

requires ti.sdo.ce.examples.extensions;//扩展部分
requires ti.sdo.ce.examples.extensions.scale;

requires ti.sdo.ce.examples.servers;//服务器部分
requires ti.sdo.ce.examples.servers.all_codecs;
requires ti.sdo.ce.examples.servers.all_codecs_new_config;
requires ti.sdo.ce.examples.servers.video_copy;
requires ti.sdo.ce.examples.servers.video_copy.evmDM6446;
requires ti.sdo.ce.examples.servers.video_copy.evmDM6467;
requires ti.sdo.ce.examples.servers.video_copy.evm2530;
requires ti.sdo.ce.examples.servers.video_copy.evm3530;
requires ti.sdo.ce.examples.servers.video_copy.evmOMAPL137;
requires ti.sdo.ce.examples.servers.server_api_example;
requires ti.sdo.ce.examples.servers.audio1_ires;

requires ti.sdo.ce.examples.buildutils;
requires ti.sdo.ce.examples.apps;//应用部分
requires ti.sdo.ce.examples.apps.video_copy.singlecpu;
requires ti.sdo.ce.examples.apps.video_copy.singlecpu_configuro.evmDM365;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu.evmDM6446;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu.evmDM6467;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu.evm2530;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu.evm3530;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu.evmOMAPL137;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu_separateconfig;
requires ti.sdo.ce.examples.apps.video_copy.dualcpu_separateconfig_dll;
requires ti.sdo.ce.examples.apps.image_copy;
requires ti.sdo.ce.examples.apps.speech_copy;
requires ti.sdo.ce.examples.apps.audio_copy.singlecpu;
requires ti.sdo.ce.examples.apps.audio_copy.dualcpu;
requires ti.sdo.ce.examples.apps.audio_copy.dualcpu.evmDM6446;
requires ti.sdo.ce.examples.apps.audio_copy.dualcpu.evmDM6467;
requires ti.sdo.ce.examples.apps.audio_copy.dualcpu.evm2530;
requires ti.sdo.ce.examples.apps.audio_copy.dualcpu.evm3530;
requires ti.sdo.ce.examples.apps.server_api_example;
requires ti.sdo.ce.examples.apps.server_trace;

requires ti.sdo.ce.examples.apps.video2_copy;
requires ti.sdo.ce.examples.apps.video1_copy;
requires ti.sdo.ce.examples.apps.image1_copy;
requires ti.sdo.ce.examples.apps.speech1_copy;
requires ti.sdo.ce.examples.apps.audio1_copy.sync;
requires ti.sdo.ce.examples.apps.audio1_copy.async;
requires ti.sdo.ce.examples.apps.audio1_ires;

requires ti.sdo.ce.examples.apps.video2split_copy;

requires ti.sdo.ce.examples.apps.vidtranscode;
requires ti.sdo.ce.examples.apps.vidanalytics;

requires ti.sdo.ce.examples.apps.universal_copy;
requires ti.sdo.ce.examples.apps.scale;
requires ti.sdo.ce.examples.apps.speech;
requires ti.sdo.ce.examples.apps.speech_copy_LAD;

requires ti.sdo.ce.wizards.genserver;