Media 类

Media is an abstract representation of a playable media. It can be a network stream or a local video/audio file.

继承层次

命名空间： LibVLCSharp.Shared
程序集： CPF.Vlc (在 CPF.Vlc.dll 中) 版本：0.8.8.5

语法

public class Media : Internal

Media 类型公开以下成员。

构造函数

	名称	说明
	Media(MediaList)	Create a media from a media list
	Media(LibVLC, MediaInput, String)	Create a media from a MediaInput requires libvlc 3.0 or higher
	Media(LibVLC, Int32, String)	Create a media for an already open file descriptor. The file descriptor shall be open for reading(or reading and writing). Regular file descriptors, pipe read descriptors and character device descriptors(including TTYs) are supported on all platforms. Block device descriptors are supported where available. Directory descriptors are supported on systems that provide fdopendir(). Sockets are supported on all platforms where they are file descriptors, i.e.all except Windows. \note This library will not automatically close the file descriptor under any circumstance.Nevertheless, a file descriptor can usually only be rendered once in a media player.To render it a second time, the file descriptor should probably be rewound to the beginning with lseek().
	Media(LibVLC, Uri, String)	Media Constructs a libvlc Media instance
	Media(LibVLC, String, FromType, String)	Media Constructs a libvlc Media instance

属性

	名称	说明
	Duration	Get duration (in ms) of media descriptor object item.
	IsParsed	Return true is the media descriptor object is parsed
	Mrl	Get the media resource locator (mrl) from a media descriptor object
	NativeReference	The pointer to the native code representation of this object (继承自 Internal。)
	ParsedStatus	Get Parsed status for media descriptor object.
	Slaves	Get a media descriptor's slave list
	State	Get current VLCState of media descriptor object.
	Statistics	Get the current statistics about the media structure that contain the statistics about the media
	SubItems	Get subitems of media descriptor object. This will increment the reference count of supplied media descriptor object. Use libvlc_media_list_release() to decrement the reference counting.
	Tracks	Get media descriptor's elementary streams description address to store an allocated array of Elementary Streams descriptions (must be freed with libvlc_media_tracks_release by the caller) [OUT] 返回值类型： the number of Elementary Streams (zero on error) 备注 Note, you need to call libvlc_media_parse() or play the media at least once before calling this function. Not doing this will result in an empty array. LibVLC 2.1.0 and later.
	Type	The type of the media

方法

	名称	说明
	AddOption(String)	Add an option to the media.
	AddOption(MediaConfiguration)	Convenience method for crossplatform media configuration
	AddOptionFlag	Add an option to the media with configurable flags.
	AddSlave	Add a slave to the current media.
	ClearSlaves	Clear all slaves previously added by libvlc_media_slaves_add() or internally.
	CodecDescription	Get a media's codec description
	Dispose	Dispose of this instance (继承自 Internal。)
	Dispose(Boolean)	Dispose of this media (重写 InternalDispose(Boolean).)
	Duplicate	Duplicate a media descriptor object.
	Equals	Equality override for this media instance (重写 ObjectEquals(Object).)
	Finalize	(继承自 Object。)
	GetHashCode	Custom hascode implemenation for this Media instance (重写 ObjectGetHashCode.)
	GetType	(继承自 Object。)
	MemberwiseClone	(继承自 Object。)
	Meta	Read the meta of the media.
	Parse	Parse the media asynchronously with options. It uses a flag to specify parse options (see MediaParseOptions). All these flags can be combined. By default, the media is parsed only if it's a local file. Note: Parsing can be aborted with ParseStop().
	ParseStop	Stop the parsing of the media
	SaveMeta	Save the meta previously set
	SetMeta	Set the meta of the media (this function will not save the meta, call libvlc_media_save_meta in order to save the meta)
	ToString	(继承自 Object。)

事件

	名称	说明
	DurationChanged	The duration of the media changed
	MediaFreed	The media was freed on the native side
	MetaChanged	The meta information changed
	ParsedChanged	The parsing status changed
	StateChanged	The media state changed
	SubItemAdded	A sub item was added to this media's MediaList
	SubItemTreeAdded	A sub item tree was added to this media

字段

	名称	说明
	IsDisposed	Indicates whether this object has already been disposed (继承自 Internal。)
	Release	Release native resources by calling this C function (继承自 Internal。)

扩展方法

	名称	说明
	ConvertTo	类型转换 (由 ObjectExtenstions 定义。)
	Delay	延迟操作 (由 ObjectExtenstions 定义。)
	Equal	对象是否相等 (由 ObjectExtenstions 定义。)
	GetCreationCode	(由 ObjectExtenstions 定义。)
	GetPropretyValue	获取对象属性值 (由 ObjectExtenstions 定义。)
	GetValue	快速动态获取对象的属性值 (由 FastReflectionExtensions 定义。)
	Invoke	快速动态调用对象的方法 (由 FastReflectionExtensions 定义。)
	SetPropretyValue	设置属性值 (由 ObjectExtenstions 定义。)
	SetValue	快速动态设置对象的属性值 (由 FastReflectionExtensions 定义。)

参见