黑客向导/VLC模块树，各模块功能说明

　　本网页列出VLC源代码树中 Modules目录中各子项目，目的是为了给新的VLC开发者对code有个总体的把握。各子目录按照字母顺序被列出，在列表右侧是对各目录功能的详细说明，每个目录下面的第一个子目录也被列出，为了更详细的VLC modules说明，请看这里https://wiki.videolan.org/Documentation:Modules/
　　注意：下面这张”目录“表示不完整的，注意表中仅仅列出了与子目录联系紧密的插件。虽然某个插件（子模块）也处于某个目录下面但不会被列出，除非它非常重要。如果想全面、完整的了解VLC所用到plugins，请查阅source code中modules/MODULES_LIST 这个文件即可。

Directory Name	Subdirectory Name	Directory Explanation
access		protocols to access streams through network (http,ftp,fake,tcp,udp etc.), access to physical media like cd’s and dvd’s
	cdda	input module to read audio CDs
	dshow	DirectShow access plugin for encoding cards under Windows
	dvb	input module for DVB-S/C/T streaming using v4l2 API
	mms	MMS over TCP, UDP and HTTP access module
	rtsp
	screen	an input module that takes screenshots of the primary monitor
	vcd	input module for accessing Video CDs.
	vcdx	input module for accessing Video CDs with navigation & stills
access-filter		Includes the following filters: timeshift, record, dump, which are used for ?????
access-output
audio-filter		Various audio filters like decoders, equalizers, converters.
	channel-mixer	Various mixers and decoders like Dolby decoder
	converter	Fixed and floating-point audio format conversions such as AC/3 or MPEG I-II Audio Layer 1, 2, 3 decoding
	resampler	Various audio resampler
audio-mixer		Mixer plugins.
audio-output		Audio output plugins like ALSA, OSS and DirectX audio.
codec		This directory includes various codecs, notably ffmpeg which is used for encoding and decoding various formats.
	cmml	Continuous Media Markup Language annotations/hyperlinks decoder
	dmo	a DirectMediaObject decoder that uses DirectMedia to decode video (WMV3)
	ffmpeg	Video decoder using the ffmpeg library
	spudec	RLE DVD subtitles decoder
	xvmc	XVMC video output and decoder
control		Various interfaces to control the player: gestures, hotkeys, lirc, remote control (rc) and telnet
	http	HTTP remote control webinterface
demux		Various demuxers
	asf	ASF demuxer
	avi	AVI File stream demuxer
	mp4	MP4 file input module
	mpeg
	playlist	playlist import module???
gui		GUI’s for different platforms and the ncurses interface
	beos	Audio output, video output and interface module for BeOS.
	macosx	Video output, and interface module for Mac OS X.
	pda	interface for iPaq using the Gtk2+ widget set.
	qnx	QNX RTOS plugin
	qt4	interface module using the cross-platform Qt4 library: Multi-platform. This interface will be the default one upon subsequent releases.
	skins2	Skinnable interface, new generation
	wince	Pocket PC interface
	wxwidgets	interface module using the cross-platform wxWindows library: Multi-platform. The default interface as of VLC 0.86a.
meta-engine
misc
	dummy	Dummy (no GUI) audio output, video output, interface and input modules.
	memcpy	memory chunk copying module.
	notify	notifications using libnotify
	playlist
	probe
	testsuite
	xml	LibXML and xtag xml parsers
mux		Various Muxers
	mpeg
	rtp
packetizer		Packetizers for H264/AVC and MPEG 4 audio and video streams.
	services-discovery
stream-out
	transrate
video-chroma		Image conversions such as YUV to RGB
video-filter		Various video filters like Deinterlace, Transform, Wall, Crop, Panoramix etc.
video-output
	directx	Video output module using the Direct3D and Direct X API’s ; OpenGL for Windows.
	qte	video output module for Qt Embedded.
	x11	video output module using the X11 API.
visualization		Several visualizations, including goom
	galaktos	a visualization module that outputs OpenGL
	visual	visualisation system

当然你可以看这篇文章来对模块的各个作用来获取更多的信息。http://www.videolan.org/doc/vlc-user-guide/en/ch02.html