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This article mainly explains "what are the knowledge points of HTML media". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what knowledge points does HTML media have"?

HTML Media (Media)

1.1HTML multimedia

Multimedia on Web refers to sound effects, music, video and animation.

Modern web browsers already support many multimedia formats.

1.2 what is multimedia?

Multimedia comes from many different formats. It can be anything you hear or see, words, pictures, music, sound effects, recordings, movies, animations, and so on.

On the Internet, you will often find multimedia elements embedded in web pages, and modern browsers have supported a variety of multimedia formats.

1.3 browser support

The first Internet browser only supported text, and even support for text was limited to a single font and a single color. Then came browsers that support colors, fonts and text styles, and image support was added.

Different browsers handle support for sound, animation, and video in different ways. Some elements can be processed inline, while others require additional plug-ins.

1.4 Multimedia format

Format multimedia elements, such as video and audio, are stored in media files.

The most common way to determine the media type is to look at the file extension. When the browser gets the file extension .htm or .html, it assumes that the file is a HTML page. The .xml extension indicates the XML file, while the .css extension indicates the style sheet. The image format is identified by .gif or .jpg.

1.5 Video format

MP4 is a new video format introduced by the Internet.

MP4 is recommended for YouTube.

Flash Players supports MP4

HTML5 supports MP4.

The latest HTML5 standard only supports MP4, WebM, and Ogg video formats. The format file description AVI.aviAVI (Audio Video Interleave) format was developed by Microsoft. All computers running Windows support the AVI format. It is a common format on the Internet, but non-Windows computers are not always able to play. The WMV.wmvWindows Media format is developed by Microsoft. Windows Media is common on the Internet, but Windows Media movies cannot be played without additional (free) components installed. Some later Windows Media movies cannot be played on all non-Windows computers because there is no suitable player. MPEG

.mpg

.mpeg

MPEG (Moving Pictures Expert Group) format is the most popular format on the Internet. It is cross-platform and is supported by all the most popular browsers. The QuickTime.movQuickTime format was developed by Apple. QuickTime is a common format on the Internet, but QuickTime movies cannot be played on Windows computers without additional (free) components installed. RealVideo

.rm

.ram

The RealVideo format was developed by Real Media for the Internet. This format allows video streaming under low-bandwidth conditions (online video, network television). Because of the low bandwidth priority, the quality is often degraded. Flash

.swf

.flv

The Flash (Shockwave) format was developed by Macromedia. The Shockwave format requires additional components to play. However, the component is pre-installed on browsers such as Firefox or IE. Mpeg-4.mp4Mpeg-4 (with H.264 video compression) is a new format for the Internet. In fact, YouTube recommends using MP4. YouTube receives multiple formats and then converts them all to .flv or .mp4 for distribution. More and more video publishers are turning to MP4 as an Internet sharing format for Flash players and HTML5.

1.6 Sound format

MP3 is a kind of audio compression technology, its full name is moving image expert compression standard audio layer 3 (Moving Picture Experts Group Audio Layer III), referred to as MP3. It is designed to greatly reduce the amount of audio data. If your site is a music type, you can choose mp3 format.

HTML5's latest standards support MP3, WAV, and Ogg audio formats. Format file description MIDI

.mid

.midi

MIDI (Musical Instrument Digital Interface) is a format for electronic music devices such as synthesizers and sound cards. MIDI files do not contain sound, but contain digital music instructions that can be played by electronic products, such as sound cards.

Click here to play The Beatles.

Because the MIDI format contains only instructions, the MIDI file is extremely small. The above example is only 23k in size, but it can play for nearly 5 minutes. MIDI is supported by a large number of software on a wide range of platforms. Most popular web browsers support MIDI.

RealAudio

.rm

.ram

The RealAudio format was developed by Real Media for the Internet. This format also supports video. The format allows audio streams (online music, network music) under low bandwidth conditions. Because of the low bandwidth priority, the quality is often degraded. The Wave.wavWave (waveform) format was developed by IBM and Microsoft. It is supported by all computers running Windows and all web browsers (except Google Chrome). WMA.wmaWMA format (Windows Media Audio), the quality is better than MP3, compatible with most players, except iPod. WMA files can be transmitted as continuous data streams, which makes it useful for online radio or online music. MP3

.mp3

.mpga

The MP3 file is actually the sound part of the MPEG file. The MPEG format was originally developed by the Motion Picture expert Group. MP3 is one of the most popular sound formats for music. It is expected that future software systems will support it. Thank you for your reading, the above is the content of "what are the knowledge points of HTML media". After the study of this article, I believe you have a deeper understanding of what knowledge points HTML media have, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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