Edit the live broadcast source code with me. How to write the live broadcast app code

The live broadcasting industry is becoming more and more popular , People's enthusiasm for live video broadcasting is also enduring , The technicians of cloudleopard live broadcast teach you to write a small live video clip here .
Windows Media Player series ( Different panel styles )

Comprehensive type ：
id=MediaPlayer type=application/x-oleobject width=210 height=340 standby=“Loading Microsoft Windows Media Player components…” VIEWASTEXT align=MIDDLE>

Simple ：
http://www.*.com/mediadate/lxlhbcn.asf style=“HEIGHT: 45px; WIDTH: 190px” type=audio/mpeg AUTOSTART=“1” loop=“0”>

Label type :

Quotes
The appearance interface of the media player
In the web page , You can control which parts of the media player appear through related properties , Which parts do not appear .
The media player includes the following elements ：
Video Display Panel： Video display panel ;
Video Border： Video border ;
Closed Captioning Display Panel; Subtitle display panel ;
Track Bar; Search bar ;
Control Bar with Audio and Position Controls： Control bar with sound and position control ;
Go To Bar： Go to column ;
Display Panel： Display panel ;
Status Bar： status bar ;
The following attributes are used to determine which element to display ：
ShowControls attribute ： Whether to display the control bar （ Including playback controls and optional sound and position controls ）;
ShowAudioControls attribute ： Whether to display the sound control in the control bar （ Mute button and volume slider ）;
ShowPositionControls attribute ： Whether to display the position control in the control bar （ Including jumping back 、 Fast back 、 Fast forward 、 Jump forward 、 Preview each clip in the playlist ）;
ShowTracker attribute ： Whether to display the search bar ;
ShowDisplay attribute ： Whether to display the display panel （ Used to provide information about programs and clips ）;
ShowCaptioning attribute ： Whether to display the subtitle display panel ;
ShowGotoBar attribute ： Whether to display the go to column ;
ShowStatusBar attribute ： Is the status bar displayed ;
Playlist
The media player provides the following methods to access clips in the playlist ：
Next Method , Jump to program （ Playlist ） The next clip in ;
Previous Method , Jump back to the previous clip in the program ;
A feature of the media player is the ability to preview every clip in the program , Use the following properties ：
PreviewMode attribute , Determines whether the media player is currently in preview mode ;
CanPreview attribute , Determines whether the media player can be in preview mode ;
stay windows In the media metafile , You can specify a preview time for each clip ——PREVIEWDURATION, If not specified , The default preview time is 10 Second .
You can also use it Windows Media metafile to add watermarks And banners, Metafile also supports seamless stream switching when inserting advertisements .
Program information
Use GetMediaInfoString Method can return the following information about the relevant clip or program ：
file name ：File name
title ：Title
describe ：Description
author ：Author
Copyright ：Copyright
Level ：Rating
URLs：logo icon、watermark、banner The address of
Clip information can be placed in media files , It can also be placed in Windows In the media metafile , Or both . If clip information is specified in the metafile , Then use GetMediaInfoString Method returns the information in the metafile , The information contained in the clip is not returned .
In the metafile , Additional information can be placed on each clip or program PARAM In the label . You can add as many as you like to each clip PARAM label , Used to store customized information or link to related sites . stay PARAM The information in the tag can be accessed through GetMediaParameter Method to access .
The following properties return information about size and time ：
ImageSourceHeight、ImageSourceWidth： Returns the display size of the image window ;
Duration attribute , Returns the length of the clip ( second ), To check whether this property contains a valid value , Please check IsDurationValid attribute .( For broadcast video , Its length is unpredictable ).
subtitle
You can use it. .smi File to add subtitles to your program . The media player supports the following properties to handle subtitles ：
SAMIFileName attribute , Appoint .smi Name of file ;
SAMILang attribute , Specifies the language of the subtitle ( If not specified, use the first language );
SAMIStyle attribute , Specify the text size and style of subtitles ;
ShowCaptioning attribute , Decide whether to display the subtitle display panel ;
Script command
Accompanying audio 、 Video streaming , You can add script commands to the streaming media files . Script commands are many pairs of multimedia streams synchronized with a specific time Unicode strand . The first string identifies the type of command to be issued , The second string specifies the command to execute .
When the stream plays to the time related to the script , Control will send a... To the web page ScriptCommand event , The event handler then responds to the event . The script command string is passed to the event handler as a parameter of the script command event .
The media player will automatically process the following types of embedded script commands ：

1. URL Type command ： When the media player control receives a URL Type command , designated URL Will be loaded into the user's default browser . If the media player is embedded in a sub frame HTML In file ,URL Pages can be loaded into frames specified by script commands . If the script command does not specify a frame , Will be made by DefaultFrame Attribute determines that URL Which frame the page loads .
   You can set up InvokeURLs Property to determine whether to process automatically URL Type script command . If the value of this property is false , Media player controls will ignore URL Type command . But script command events still trigger , This allows you to deal selectively with URL Type command .
   URL The type command specifies URL Relative address of . The base address is defined by BaseURL Property specified . The command parameter of the script command event transmitted by the media player control is the linked address .
2. FILENAME Type command ： When the media player control receives a FILENAME Type command , It will FileName Property to the file provided for the script command , After that, the media player will open the file and start playing . Media player controls are always handled automatically FILENAME Type command , Don't like URL Type command , They cannot be banned .
3. TEXT Type command ： When the media player control receives a TEXT Type command , It will display the contents of the command in the subtitle window of the control . The content can be plain text , It can also be HTML.
4. EVENT Type command ： When the media player control receives a EVENT Type command , It will search the media metafile EVENT Elemental NAME attribute . If NAME Property matches the second string in the script command , The media player control is included in EVENT Element .
5. OPENEVENT Type command ： When the media player control receives a OPENEVENT Type command , It checks in the media metafile EVENT Elements , And open the matching title , But don't play , Until you receive from EVENT A real event of the same name for a type command .
   A simple live video is such a huge writing process , As one can imagine , A whole set of live broadcast APP How much time does the source code take