Is WAV needed for html5 audio fully cross-browser? -

-

an audio web cross-browser needs different formats work on browsers. commonly see people use mp4 , ogg. want sure. therefore added webm , wav. needed? wav files heavy. question should thought thinking performance responsive site.

this html example:

<audio controls="controls" data-music="1">     <source src="http://example.webm" type="audio/webm" />     <source src="http://example.mp4" type="audio/mpeg" />     <source src="http://example.ogg" type="audio/ogg" />     <source src="http://example.wav" type="audio/wav" /> </audio>

will downloaded , affect global performance?

additionally, order matter of type of formats?


Comments

Post a Comment

Popular posts from this blog

c++ - QTextObjectInterface with Qml TextEdit (QQuickTextEdit) -

-
i registred handler simple qtextobjectinterface , draws 10x10 red rectangle. when used qtextedit in normal qwidget app, worked. when used qquicktextedit (textedit qml component) in qt quick app, doesn't worked (nothing drawed, rectangle in textedit reserved, because when change cursor position, notice there something, empty space, nothing drawed. qtextobjectinterface intrinsicsize method called (that explains why see there empty space 10x10), drawobject method isn't. i did research , found problem here: qquicktextedit.cpp qt 5.3.0 sources (line 1821) qsgnode *qquicktextedit::updatepaintnode(qsgnode *oldnode, updatepaintnodedata *updatepaintnodedata) { . . . if (textframe->firstposition() > textframe->lastposition() && textframe->frameformat().position() != qtextframeformat::inflow) { updatenodetransform(node, d->document->documentlayout()->frameboundingrect(textframe).topleft()); c...
Read more

xcode - Swift Playground - Files are not readable -

-
Image
files not readable in swift playground . how make files readable? same code runs on xcode terminal app, fails on swift playground. demo code below. import foundation println("hello, world!") var fname:string = "/users/holyfield/desktop/com.apple.iconcomposer.plist" var fm:nsfilemanager = nsfilemanager.defaultmanager() if(fm.fileexistsatpath(fname)){ println("file exists") if(fm.isreadablefileatpath(fname)){ println("file readable") var fd:nsdata? = nsdata(contentsoffile: fname) println(fd?.length) let pl = nsdictionary(contentsoffile: fname) println(pl?.count) println(pl?.allkeys) }else{ println("file not readable") } } else{ println("file not exists") } sample images: i have thank nate cook first quick response , solid answer. just case share answer post, title misleading. see nate's answer here: https://stackoverf...
Read more

jboss7.x - JBoss AS 7.3 vs 7.4 and differences -

-
i can find eap component differences, can find differences between jboss 7.3 , 7.4? trying decide between two. the differences same eap, because eap 6.3.0 ga built 7.4 , eap 6.2.0 ga built 7.3 . eap code repository forked/rebased as7 after 7.2.0 tag . and such has own lifecycle , has diverted considerably as7/wildfly (upstream) repository. in short there no such thing jboss 7.3 or 7.4 internal version. code eap releases available on ftp , can build , use without restrictions ( ftp://ftp.redhat.com/redhat/jbeap/ ). you can see component details in https://access.redhat.com/articles/112673 i hope help.
Read more