What is OpenCore

介绍OpenCore是什么东西的文档.

http://www.opencore.net/files/AES34-000040.pdf

 

 

下面是源码中各个模块实现的功能

OpenCORE is the multimedia framework of Android originally contributed by

PacketVideo.  It provides an extensible framework for multimedia rendering and

authoring and video telephony (3G-324M).

 

The following an overview of the directory structure which includes a list of

the top-level directories along with a brief note describing the contents.

 

__

  |-- android  [Contains the components the interface OpenCORE with 

  |             other parts of Android]   

  |-- baselibs [Contains basic libraries for data containers, MIME string

  |             handling, messaging across thread boundaries, etc]

  |-- build_config [Contains top-level build files used to build the libraries

  |                 outside of Android]

  |-- codecs_v2 [Contains the implementations of PV's audio and video 

  |              codecs as well as the OpenMax IL interface layer]

  |-- doc       [Contains the documentation required to interface with

  |              OpenCORE]

  |-- engines   [Contains the implementation of the player and author 

  |              engines as well as a utility for metadata]

  |-- extern_libs_v2 [Contains 3rd-party libraries used by OpenCORE. 

  |                   Currently this directory contains header files 

  |                   defining the Khronos OpenMax IL interface]

  |-- extern_tools_v2 [Contains 3rd-party tools used to build OpenCORE

  |                    indpendently of the Android build system]

  |-- fileformats  [Contains the libraries for parsing a variety of

  |                 fileformats including mp4/3gp,mp3,wav,aac]

  |-- modules [Contains build files for aggregating low-level libraries]

  |-- nodes     [Contains the OpenCORE framework "nodes", which is 

  |              the abstraction used to implement independent multimedia 

  |              processing units that can be connected in a flow graph]

  |-- oscl      [This is the Operating System Compatibility Layer which 

  |              provides the mapping OS APIs as well as some basic 

  |              data structures and utilities]

  |-- protocols [Contains parsers and composers for a variety of network

  |              protocols such as HTTP, RTP/RTCP, RTSP, and SDP]

  |-- pvmi     [Contains fundamental definitions that make up OpenCORE.

  |             The directory name is an abbreviation of PacketVideo 

  |             Multimedia Infrastructure]

  |-- tools_v2  [Contains tools used to build the libraries outside of Android]

 

Within each library, the following directory structure, with a few exceptions,

is implemented to organize the files:

 

__

  |-- build

    |-- make    <- makefile to build outside of Android is here       

  |-- doc       <- directory for any documentation specific to this lib

  |-- include   <- header files that are part of the external interface go here

  |-- src       <- source and internal header files of the library

  |-- test      <- test code (follows a similar structure)

    |-- build

      |-- make

    |-- include

    |-- src