HTML5 video and audio implementation steps

We know that the components of common video formats are: picture, audio, and encoding format. Common audio formats include audio encoding: ACC, MP3, Vorbis. In HTML5, there are three supported video formats. Come today Let’s talk aboutHTML5 videoAudio implementation steps

Video formats supported by HTML5:

Ogg=Ogg file with Theora video encoding + Vorbis audio encoding

Supported browsers: F, C, O

MEPG4=MPEG4 file with H.264 video encoding + AAC audio encoding

Supported browsers: S, C

WebM=WebM format with VP8 video encoding + Vorbis audio encoding

Supported browsers: I, F, C, O

Video attribute

AUTOPLAY

counter to display the play control to the user

completely set the player width

# Height setting the player height

# Loop Whether to continue playing the video after playing, and play it in a loop

Preload ’ ’ ’ having #Autobuffer Set to browser buffering mode, it is only valid if autoply is not set

Video API method

play()

pause()

load()

Full screen: webkit element.webkitRequestFullScreen();

Firefox element.mozRequestFullScreen();

Exit full screen:

webkit

document

.webkitCancelFullScreen();

Firefox document.mozCancelFullScreen();

W3C document.exitFullscreen();

Video API propertiescurrentTime: The time from the start to the present time of playback

duration: The total media time (read-only)

volume: The relative volume value of 0.0-1.0

muted : Whether to mute false /true

paused : Whether the media is paused (read-only)

ended : Whether the media has been played (read-only)

error : When an error occurs in the media, the error code is returned (read-only)

currentSrc : The media address is returned in the form of

string

(read-only)

loadstart progress suspend emptied Stalled Play Pause LoadedMetAdata Loadedata Waiting Playing CanplayThrough Seeking Seeked E

Volumechange

# HTML5 supports audio format:

OGG free support Browsers: C, F, O

MP3 Paid Supported browsers: I, C, S

Wav Paid Supported browsers: F, O, S

audio

# The URL of the audio to be played.

I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

Related reading:

Js Get common ways to get styles

Js The process of operating DOM objects

The implementation steps of Js operating window window objects

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