MediaConfiguration - Web APIs
properties a valid configuration includes a valid encoding configuration type or decoding configuration type and a valid audio configuration or video configuration.
... for decoding, set the type to file or media-source.
... a valid media decoding configuration, to be submitted as the parameter for mediacapabilities.decodinginfo() method, has it's `type` set as: file: for plain playback file.

URIError: malformed URI sequence - JavaScript
the javascript exception "malformed uri sequence" occurs when uri encoding or decoding wasn't successful.
... uri encoding or decoding wasn't successful.
...for example: encodeuri('\ud800\udfff'); // "%f0%90%8f%bf" decoding decoding replaces each escape sequence in the encoded uri component with the character that it represents.

Digital audio concepts - Web media technologies
the process of compressing and decompressing audio is performed by encoding and decoding it using an audio codec (coder/decoder).
... all of this means there is a fundamental question that has to be asked and answered before choosing a codec: given the content of the sound, the usage context, and the target audience, is it acceptable to lose some degree of audio fidelity, and if so, how much; or is it necessary that, upon decoding the data, the result be identical to the source audio?
... while decoding the audio, the absolute left and right channel values are calculated like this: l=mid + sidel\quad =\quad mid\quad +\quad side r=mid - sidel\quad =\quad mid\quad -\quad side on its own, mid-side stereo coding is lossless, and is commonly used by both lossless and lossy audio codecs.

Digital video concepts - Web media technologies
there are several color models, and video codec makes use of one or more of these to represent their pixels during the encoding process as well as after decoding the video frames.
... since the color data is being encoded at a lower resolution than the luma, when decoding the video to draw it to the screen each pixel's color is computed by calculating an appropriate color given the u and v values for the 4x2 block of 8 pixels in which the pixel resides.
... this decoding operation must mirror the method used during encoding, which is represented by three numbers separated by colons (":").

Downloading JSON and JavaScript in extensions - Archive of obsolete content
downloading json if the extension is downloading json, then the developer should be using one of the json decoding methods discussed here and not using eval() at all.
...the json decoding methods available to extension developers protect the extension from malicious json and javascript.

Graceful asynchronous programming with Promises - Learn web development
next, we call our function three times to begin the process of fetching and decoding the images and text and store each of the returned promises in a variable.
... note: if you were improving this code, you might want to loop through a list of items to display, fetching and decoding each one, and then loop through the results inside promise.all(), running a different function to display each one depending on what the type of code was.

NSS_3.12_release_notes.html
bug 384926: libpkix build problems bug 389411: mingw build error - undefined reference to `_imp__pkix_errornames' bug 389904: avoid multiple decoding/encoding while creating and using pkix_pl_x500name bug 390209: pkix aia manager tries to get certs using aia url with ocsp access method bug 390233: umbrella bug for libpkix cert validation failures discovered from running vfyserv bug 390499: libpkix does not check cached cert chain for revocation bug 390502: libpkix fails cert validation when no valid crl (nist validation policy is always enforc...
...ug 353902: klocwork bugs in stanpcertdb.c bug 353903: klocwork oom crash in softoken/keydb.c bug 353908: klocwork oom crash in tdcache.c bug 353909: klocwork ptr dereference before null check in devutil.c bug 353912: misc klocwork bugs in lib/ckfw bug 354008: klocwork bugs in freebl bug 359331: modutil -changepw strict shutdown failure bug 373367: verify ocsp response signature in libpkix without decoding and reencoding bug 390542: libpkix fails to validate a chain that consists only of one self issued, trusted cert bug 390728: pkix_pl_ocsprequest_create throws an error if it was not able to get aia location bug 397825: libpkix: ifdef code that uses user object types bug 397832: libpkix leaks memory if a macro calls a function that returns an error bug 402727: functions responsible for creating an...

NSS tools : ssltab
-s turn on ssl parsing and decoding.
...there is no ssl parsing or decoding.

NSS tools : ssltap
-s turn on ssl parsing and decoding.
...there is no ssl parsing or decoding.

sslerr.html
sec_error_pkcs12_decoding_pfx -8114 unable to import.
... decoding error.

NSS Tools ssltap
-s turn on ssl parsing and decoding.
...there is no ssl parsing or decoding.

NSS tools : ssltap
-s turn on ssl parsing and decoding.
...there is no ssl parsing or decoding.

Multithreading in Necko
multithreaded image decoding).
...the jar protocol handler, for rexample, passes a special nsiinputstream impl that does gzip decoding on the fly.

imgIContainer
void decodingcomplete(); obsolete since gecko 2.0 void draw(in gfxcontext acontext, in gfxgraphicsfilter afilter, [const] in gfxmatrix auserspacetoimagespace, [const] in gfxrect afill, [const] in nsintrect asubimage, [const] in nsintsize aviewportsize, in pruint32 aflags); native code only!
... return value missing description exceptions thrown missing exception missing description decodingcomplete() obsolete since gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) void decodingcomplete(); parameters none.

imgIDecoderObserver
unfortunately, this is currently the only way to signal decoding errors to consumers, and the only decoding errors that consumers care about (indeed, the only ones that they're prepared to hear about) are failures to instantiate the decoder (<img src="foo.html"> for example).
... status missing description statusarg missing description onstopframe() a decode notification that is called when a frame is finished decoding.

nsIExternalHelperAppService
to access this service, use: var externalhelperappservice = components.classes["@mozilla.org/uriloader/external-helper-app-service;1"] .getservice(components.interfaces.nsiexternalhelperappservice); method overview boolean applydecodingforextension(in autf8string aextension, in acstring aencodingtype); nsistreamlistener docontent(in acstring amimecontenttype, in nsirequest arequest, in nsiinterfacerequestor awindowcontext, in boolean aforcesave); methods applydecodingforextension() determines whether or not data whose filename has the specified extension should be decoded from the specified encoding type before be...
...boolean applydecodingforextension( in autf8string aextension, in acstring aencodingtype ); parameters aextension the filename extension to check.

AudioConfiguration - Web APIs
the audioconfiguration dictionary of the media capabilities api defines the audio file being tested when calling mediacapabilities.encodinginfo() or mediacapabilities.decodinginfo() to query whether a specific audio configuration is supported, smooth, and/or power efficient.
... } }; // check support and performance navigator.mediacapabilities.decodinginfo(mediaconfig).then(result => { console.log('this configuration is ' + (result.supported ?

Background Tasks API - Web APIs
this establishes a box (id "container") that's used to present the progress of an operation (because you never know how long decoding "quantum filament tachyon emissions" will take, after all) as well as a second main box (with the id "logbox"), which is used to display textual output.
...</p> <div class="container"> <div class="label">decoding quantum filament tachyon emissions...</div> <progress id="progress" value="0"></progress> <div class="button" id="startbutton"> start </div> <div class="label counter"> task <span id="currenttasknumber">0</span> of <span id="totaltaskcount">0</span> </div> </div> <div class="logbox"> <div class="logheader"> log </div> <div id="log"> </div> </div> the progress box uses a <progress> element to show the progress, along with a label with sections that are changed to present numeric information about the progress.

BaseAudioContext.decodeAudioData() - Web APIs
successcallback a callback function to be invoked when the decoding successfully finishes.
...= new xmlhttprequest(); request.open('get', 'viper.ogg', true); request.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { source.buffer = buffer; source.connect(audioctx.destination); source.loop = true; }, function(e){ console.log("error with decoding audio data" + e.err); }); } request.send(); } // wire up buttons to stop and play audio play.onclick = function() { getdata(); source.start(0); play.setattribute('disabled', 'disabled'); } stop.onclick = function() { source.stop(0); play.removeattribute('disabled'); } // dump script to pre element pre.innerhtml = myscript.innerhtml; new promise-based syntax ctx.decodeaudio...

HTMLImageElement - Web APIs
htmlimageelement.decoding an optional domstring representing a hint given to the browser on how it should decode the image.
...read the decoding page for details on the implications of this property's values.

Navigator.mediaCapabilities - Web APIs
the navigator.mediacapabilities read-only property returns a mediacapabilities object that can expose information about the decoding and encoding capabilities for a given format and output capabilities as defined by the media capabilities api.
... examples navigator.mediacapabilities.decodinginfo({ type : 'file', audio : { contenttype : "audio/mp3", channels : 2, bitrate : 132700, samplerate : 5200 } }).then(function(result) { console.log('this configuration is ' + (result.supported ?

RTCRtpTransceiver.receiver - Web APIs
the read-only receiver property of webrtc's rtcrtptransceiver interface indicates the rtcrtpreceiver responsible for receiving and decoding incoming media data for the transceiver's stream.
... syntax var rtpreceiver = rtcrtptransceiver.receiver; value an rtcrtpreceiver object which is responsible for receiving and decoding incoming media data whose media id is the same as the current value of mid.

RTCRtpTransceiver - Web APIs
receiver read only the rtcrtpreceiver object that handles receiving and decoding incoming media.
...the associated sender stops sending data, and the associated receiver likewise stops receiving and decoding incoming data.

SVGImageElement - Web APIs
svgimageelement.decoding returns a domstring representing a hint given to the browser on how it should decode the image.
... svgimageelement.decode() initiates asynchronous decoding of the image data.

TextDecoder.prototype.encoding - Web APIs
the textdecoder.prototype.encoding read-only property returns a domstring containing the name of the decoding algorithm used by the specific decoder.
... syntax var b = decoder.decoding; specifications specification status comment encodingthe definition of 'textdecoder.encoding' in that specification.

VideoConfiguration - Web APIs
the videoconfiguration dictionary of the media capabilities api is used to define the video file being tested when calling the mediacapabilities methods encodinginfo() and decodinginfo() to determine whether or not the described video configuration is supported, and how smoothly and how smoooth and power-efficient it can be handled.
... examples // create media configuration to be tested const mediaconfig = { type : 'file', // see mediadecodingconfiguration and mediaencodingconfiguration video : { contenttype : "video/webm;codecs=vp8", // valid content type width : 800, // width of the video height : 600, // height of the video bitrate : 10000, // number of bits used to encode 1s of video framerate : 30 // number of frames making up that 1s.

Writing a WebSocket server in C# - Web APIs
e64string( system.security.cryptography.sha1.create().computehash( encoding.utf8.getbytes( new system.text.regularexpressions.regex("sec-websocket-key: (.*)").match(data).groups[1].value.trim() + "258eafa5-e914-47da-95ca-c5ab0dc85b11" ) ) ) + eol + eol); stream.write(response, 0, response.length); } decoding messages after a successful handshake, the client will send encoded messages to the server.
... decoding algorithm di = ei xor m(i mod 4) where d is the decoded message array, e is the encoded message array, m is the mask byte array, and i is the index of the message byte to decode.

Writing a WebSocket server in Java - Web APIs
esponse = ("http/1.1 101 switching protocols\r\n" + "connection: upgrade\r\n" + "upgrade: websocket\r\n" + "sec-websocket-accept: " + base64.getencoder().encodetostring(messagedigest.getinstance("sha-1").digest((match.group(1) + "258eafa5-e914-47da-95ca-c5ab0dc85b11").getbytes("utf-8"))) + "\r\n\r\n").getbytes("utf-8"); out.write(response, 0, response.length); decoding messages after a successful handshake, client can send messages to the server, but now these are encoded.
... decoding algorithm decoded byte = encoded byte xor (position of encoded byte bitwise and 0x3)th byte of key example in java: byte[] decoded = new byte[6]; byte[] encoded = new byte[] { (byte) 198, (byte) 131, (byte) 130, (byte) 182, (byte) 194, (byte) 135 }; byte[] key = new byte[] { (byte) 167, (byte) 225, (byte) 225, (byte) 210 }; for (int i = 0; i < encoded.length; i++) { d...

Migrating from webkitAudioContext - Web APIs
the example below shows old code which downloads an audio file over the network, and then decoded it using createbuffer(): var xhr = new xmlhttprequest(); xhr.open("get", "/path/to/audio.ogg", true); xhr.responsetype = "arraybuffer"; xhr.send(); xhr.onload = function() { var decodedbuffer = context.createbuffer(xhr.response, false); if (decodedbuffer) { // decoding was successful, do something useful with the audio buffer } else { alert("decoding the audio buffer failed"); } }; converting this code to use decodeaudiodata() is relatively simple, as can be seen below: var xhr = new xmlhttprequest(); xhr.open("get", "/path/to/audio.ogg", true); xhr.responsetype = "arraybuffer"; xhr.send(); xhr.onload = function() { context.decodeaudiodata(xhr.resp...
...onse, function onsuccess(decodedbuffer) { // decoding was successful, do something useful with the audio buffer }, function onfailure() { alert("decoding the audio buffer failed"); }); }; note that the decodeaudiodata() method is asynchronous, which means that it will return immediately, and then when the decoding finishes, one of the success or failure callback functions will get called depending on whether the audio decoding was successful.

<img>: The Image Embed element - HTML: Hypertext Markup Language
decoding provides an image decoding hint to the browser.
... auto default: no preference for the decoding mode.

The "codecs" parameter in common media types - Web media technologies
0 0 yuv 4:4:4 1 0 0 yuv 4:2:2 1 1 0 yuv 4:2:0 1 1 1 yuv 4:0:0 (monochrome) the third digit in ccc indicates the chroma sample position, with a value of 0 indicating that the position is unknown and must be separately provided during decoding; a value of 1 indicating that the sample position is horizontally colocated with the (0, 0) luma sample; and a value of 2 indicating that the sample position is colocated with (0, 0) luma.
...engineering guideline making color signal decoding recommendations for digital movies.

Optimizing startup performance - Web Performance
if you need to decode asset files (for example, decoding jpeg files and turning them into raw texture data for later use by webgl), that's great to do in workers.
... when dealing with data supported by the browser (for example, decoding image data), use the decoders built into the browser or device rather than rolling your own or using one from the original codebase.

base64 - Archive of obsolete content
data encoding and decoding using base64 algorithms.

High-Level APIs - Archive of obsolete content
base64 data encoding and decoding using base64 algorithms.

Unit Testing - Archive of obsolete content
a simple base64 module in a web page, you can perform base64 encoding and decoding using the btoa() and atob() functions.

Appendix D: Loading Scripts - Archive of obsolete content
all communication between these contexts and outer contexts is marshalled through json encoding and decoding.

Helper Apps (and a bit of Save As) - Archive of obsolete content
ongoing work support synchronous dialogs, not just asynchronous ones (fixes many issues related to pre-downloading, content-decoding, etc).

Base64 - MDN Web Docs Glossary: Definitions of Web-related terms
in javascript there are two functions respectively for decoding and encoding base64 strings: btoa(): creates a base-64 encoded ascii string from a "string" of binary data ("btoa" should be read as "binary to ascii").

Multimedia: Images - Learn web development
doesn't support progressive display and the image decoding is not hardware accellerated and therefore resource intensive on the browser's main thread.

Performance best practices for Firefox front-end engineers
indexeddb is also arguably better than storing and retrieving json from a file—particularly if the json encoding or decoding is occurring on the main thread.

An overview of NSS Internals
in addition to the freebl, softoken, and ckbi modules, there is an utility library for general operations (e.g., encoding/decoding between data formats, a list of standardized object identifiers (oid)).

NSS 3.12.4 release notes
bug 321755: implement crldistributionpoint extension in libpkix bug 391434: avoid multiple encoding/decoding of pkix_pl_oid to and from ascii string bug 405297: problems building nss/lib/ckfw/capi/ with mingw gcc bug 420991: libpkix returns wrong nss error code bug 427135: add super-h (sh3,4) architecture support bug 431958: improve des and sha512 for x86_64 platform bug 433791: win16 support should be deleted from nss bug 449332: secu_parsecommandline does not validate its inputs bug 453735: when using...

nss tech note4
} } an example custom cert extension struct _mycertextdata { secitem version; secitem streetaddress; secitem phonenum; secitem rfc822name; secitem id; secitem maxusers; }; typedef struct _mycertextdata mycertextdata; /* template used for decoding the extension */ const sec_asn1template mycertexttemplate[] = { { sec_asn1_sequence, 0, null, sizeof( mycertextdata ) }, { sec_asn1_integer, offsetof(mycertextdata, version) }, { sec_asn1_octet_string, offsetof( mycertextdata, streetaddress ) }, { sec_asn1_octet_string, offsetof( mycertextdata, phonenum ) }, { sec_asn1...

Python binding for NSS
fix incorrect format strings in pyarg_parsetuple* for: generalname basicconstraints cert_x509_key_usage fix bug when decoding certificate basicconstraints extension fix hang in setup_certs.

JS_CStringsAreUTF8
api users should switch to functions which take utf-8 explicitly or handle their own string encoding and decoding.

Animated PNG graphics
frame timings should be independent of the time required for decoding and display of each frame, so that animations will run at the same rate regardless of the performance of the decoder implementation.

nsIFeedContainer
keep in mind that some feeds have no title, and some use markup in their titles, so be cautious when decoding this attribute.

Address book sync client design
the general architecture for the sync component is the following: mozilla ui ab sync logic mork ab database sync protocol encoding sync protocol decoding http "post" api mozilla networking client side sync logic the client synchronization logic defers to the server peforming some intelligence in handling duplicate entries for the sync process.

AudioBufferSourceNode.loop - Web APIs
uest.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { mybuffer = buffer; source.buffer = mybuffer; source.playbackrate.value = playbackcontrol.value; source.connect(audioctx.destination); source.loop = true; }, function(e){"error with decoding audio data" + e.err}); } request.send(); } // wire up buttons to stop and play audio, and range slider control play.onclick = function() { getdata(); source.start(0); play.setattribute('disabled', 'disabled'); playbackcontrol.removeattribute('disabled'); } specification specification status comment web audio apithe definition of 'loop' in that specifi...

AudioBufferSourceNode.loopEnd - Web APIs
uffer = buffer; songlength = buffer.duration; source.buffer = mybuffer; source.playbackrate.value = playbackcontrol.value; source.connect(audioctx.destination); source.loop = true; loopstartcontrol.setattribute('max', math.floor(songlength)); loopendcontrol.setattribute('max', math.floor(songlength)); }, function(e){"error with decoding audio data" + e.err}); } request.send(); } ...

AudioBufferSourceNode.loopStart - Web APIs
uffer = buffer; songlength = buffer.duration; source.buffer = mybuffer; source.playbackrate.value = playbackcontrol.value; source.connect(audioctx.destination); source.loop = true; loopstartcontrol.setattribute('max', math.floor(songlength)); loopendcontrol.setattribute('max', math.floor(songlength)); }, function(e){"error with decoding audio data" + e.err}); } request.send(); } ...

AudioBufferSourceNode.playbackRate - Web APIs
uest.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { mybuffer = buffer; source.buffer = mybuffer; source.playbackrate.value = playbackcontrol.value; source.connect(audioctx.destination); source.loop = true; }, function(e){"error with decoding audio data" + e.err}); } request.send(); } // wire up buttons to stop and play audio, and range slider control play.onclick = function() { getdata(); source.start(0); play.setattribute('disabled', 'disabled'); playbackcontrol.removeattribute('disabled'); } stop.onclick = function() { source.stop(0); play.removeattribute('disabled'); playbackcontrol.setattribute('disabled', ...

AudioContext - Web APIs
an audio context controls both the creation of the nodes it contains and the execution of the audio processing, or decoding.

AudioProcessingEvent - Web APIs
an audio track via xhr and decodeaudiodata function getdata() { request = new xmlhttprequest(); request.open('get', 'viper.ogg', true); request.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { mybuffer = buffer; source.buffer = mybuffer; }, function(e){"error with decoding audio data" + e.err}); } request.send(); } // give the node a function to process audio events scriptnode.onaudioprocess = function(audioprocessingevent) { // the input buffer is the song we loaded earlier var inputbuffer = audioprocessingevent.inputbuffer; // the output buffer contains the samples that will be modified and played var outputbuffer = audioprocessingevent.outputbuffer...

AuthenticatorAttestationResponse.attestationObject - Web APIs
syntax attestobj = authenticatorattestationresponse.attestationobject properties after decoding the cbor encoded arraybuffer, the resulting javascript object will contain the following properties: authdata the same as authenticatorassertionresponse.authenticatordata.

BaseAudioContext.createBuffer() - Web APIs
note: createbuffer() used to be able to take compressed data and give back decoded samples, but this ability was removed from the spec, because all the decoding was done on the main thread, therefore createbuffer() was blocking other code execution.

BaseAudioContext.createConvolver() - Web APIs
prequest(); ajaxrequest.open('get', 'concert-crowd.ogg', true); ajaxrequest.responsetype = 'arraybuffer'; ajaxrequest.onload = function() { var audiodata = ajaxrequest.response; audioctx.decodeaudiodata(audiodata, function(buffer) { concerthallbuffer = buffer; soundsource = audioctx.createbuffersource(); soundsource.buffer = concerthallbuffer; }, function(e){"error with decoding audio data" + e.err}); } ajaxrequest.send(); ...

BaseAudioContext.createScriptProcessor() - Web APIs
an audio track via xhr and decodeaudiodata function getdata() { request = new xmlhttprequest(); request.open('get', 'viper.ogg', true); request.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { mybuffer = buffer; source.buffer = mybuffer; }, function(e){"error with decoding audio data" + e.err}); } request.send(); } // give the node a function to process audio events scriptnode.onaudioprocess = function(audioprocessingevent) { // the input buffer is the song we loaded earlier var inputbuffer = audioprocessingevent.inputbuffer; // the output buffer contains the samples that will be modified and played var outputbuffer = audioprocessingevent.outputbuffer...

ConvolverNode.buffer - Web APIs
prequest(); ajaxrequest.open('get', 'concert-crowd.ogg', true); ajaxrequest.responsetype = 'arraybuffer'; ajaxrequest.onload = function() { var audiodata = ajaxrequest.response; audioctx.decodeaudiodata(audiodata, function(buffer) { concerthallbuffer = buffer; soundsource = audioctx.createbuffersource(); soundsource.buffer = concerthallbuffer; }, function(e){"error with decoding audio data" + e.err}); } ajaxrequest.send(); ...

ConvolverNode.normalize - Web APIs
prequest(); ajaxrequest.open('get', 'concert-crowd.ogg', true); ajaxrequest.responsetype = 'arraybuffer'; ajaxrequest.onload = function() { var audiodata = ajaxrequest.response; audioctx.decodeaudiodata(audiodata, function(buffer) { concerthallbuffer = buffer; soundsource = audioctx.createbuffersource(); soundsource.buffer = concerthallbuffer; }, function(e){"error with decoding audio data" + e.err}); } ajaxrequest.send(); ...

DOMException - Web APIs
(legacy code value: 25 and legacy constant name: data_clone_err) encodingerror the encoding or decoding operation failed (no legacy code value and constant name).

HTMLImageElement.decode() - Web APIs
exceptions encodingerror a domexception indicating that an error occurred while decoding the image.

HTMLMediaElement: timeupdate event - Web APIs
user agents are encouraged to vary the frequency of the event based on the system load and the average cost of processing the event each time, so that the ui updates are not any more frequent than the user agent can comfortably handle while decoding the video.

MediaCapabilitiesInfo - Web APIs
the interface of the promise returned by the the mediacapabilities's encodinginfo() and decodinginfo() methods returning whether the media configuration tested is supported, smooth, and powerefficient.

MediaError.message - Web APIs
nt.onerror = function() { let s = ""; let err = audioelement.error; switch(err.code) { case mediaerror.media_err_aborted: s += "the user canceled the audio."; break; case mediaerror.media_err_network: s+= "a network error occurred while fetching the audio."; break; case mediaerror.media_err_decode: s+= "an error occurred while decoding the audio."; break; case mediaerror.media_err_src_not_supported: s+= "the audio is missing or is in a format not supported by your browser."; break; default: s += "an unknown error occurred."; break; } let message = err.message; if (message && message.length) { s += " " + message; } displayerrormessage("<strong>error...

MediaSource.endOfStream() - Web APIs
when you make an xmlhttprequest call for a media chunk, and onabort or onerror triggers, you might want to call endofstream('network'), display a descriptive message in the ui, and maybe retry the network request immediately or wait until the network is back up (via some kind of polling.) decode: terminates playback and signals that a decoding error has occured.

Navigator - Web APIs
navigator.locks read only returns a lockmanager object which provides methods for requesting a new lock object and querying for an existing lock object navigator.mediacapabilities read only returns a mediacapabilities object that can expose information about the decoding and encoding capabilities for a given format and output capabilities.

NotifyAudioAvailableEvent - Web APIs
properties framebuffer read only a float32array containing the raw 32-bit floating-point audio data obtained from decoding the audio (e.g., the raw data being sent to the audio hardware vs.

RTCInboundRtpStreamStats.pliCount - Web APIs
this may trigger the sender to send a full frame in order to allow the receiver to re-synchronize, since lost data may be an irrecoverable situation for decoding media.

RTCPeerConnection.getReceivers() - Web APIs
each rtp receiver manages the reception and decoding of data for a mediastreamtrack on an rtcpeerconnection syntax var receivers = rtcpeerconnection.getreceivers(); return value an array of rtcrtpreceiver objects, one for each track on the connection.

RTCPeerConnection - Web APIs
each rtp receiver manages the reception and decoding of data for a mediastreamtrack on an rtcpeerconnectiongetsenders()the rtcpeerconnection method getsenders() returns an array of rtcrtpsender objects, each of which represents the rtp sender responsible for transmitting one track's data.getstats()the rtcpeerconnection method getstats() returns a promise which resolves with data providing statistics about either the overall connection or about the ...

RTCRtpEncodingParameters - Web APIs
it's used in the rtcrtpsendparameters describing the configuration of an rtp sender's encodings; rtcrtpdecodingparameters is used to describe the configuration of an rtp receiver's encodings.

RTCRtpReceiver - Web APIs
the rtcrtpreceiver interface of the webrtc api manages the reception and decoding of data for a mediastreamtrack on an rtcpeerconnection.

RTCRtpStreamStats.pliCount - Web APIs
this may trigger the sender to send a full frame in order to allow the receiver to re-synchronize, since lost data may be an irrecoverable situation for decoding media.

RTCRtpStreamStats - Web APIs
a fir packet is sent by the receiving end of the stream when it falls behind or has lost packets and is unable to continue decoding the stream; the sending end of the stream receives the fir packet and responds by sending a full frame instead of a delta frame, thereby letting the receiver "catch up." the higher this number is, the more often a problem of this nature arose, which can be a sign of network congestion or an overburdened receiving device.

SVGImageElement.decode - Web APIs
the decode() method of the svgimageelement interface initiates asynchronous decoding of an image, returning a promise that resolves once the image data is ready for use.

ScriptProcessorNode.bufferSize - Web APIs
in an audio track via xhr and decodeaudiodata function getdata() { request = new xmlhttprequest(); request.open('get', 'viper.ogg', true); request.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { mybuffer = buffer; source.buffer = mybuffer; }, function(e){"error with decoding audio data" + e.err}); } request.send(); } // give the node a function to process audio events scriptnode.onaudioprocess = function(audioprocessingevent) { // the input buffer is the song we loaded earlier var inputbuffer = audioprocessingevent.inputbuffer; // the output buffer contains the samples that will be modified and played var outputbuffer = audioprocessingevent.outputbuffer...

ScriptProcessorNode.onaudioprocess - Web APIs
an audio track via xhr and decodeaudiodata function getdata() { request = new xmlhttprequest(); request.open('get', 'viper.ogg', true); request.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { mybuffer = buffer; source.buffer = mybuffer; }, function(e){"error with decoding audio data" + e.err}); } request.send(); } // give the node a function to process audio events scriptnode.onaudioprocess = function(audioprocessingevent) { // the input buffer is the song we loaded earlier var inputbuffer = audioprocessingevent.inputbuffer; // the output buffer contains the samples that will be modified and played var outputbuffer = audioprocessingevent.outputbuffer...

ScriptProcessorNode - Web APIs
in an audio track via xhr and decodeaudiodata function getdata() { request = new xmlhttprequest(); request.open('get', 'viper.ogg', true); request.responsetype = 'arraybuffer'; request.onload = function() { var audiodata = request.response; audioctx.decodeaudiodata(audiodata, function(buffer) { mybuffer = buffer; source.buffer = mybuffer; }, function(e){"error with decoding audio data" + e.err}); } request.send(); } // give the node a function to process audio events scriptnode.onaudioprocess = function(audioprocessingevent) { // the input buffer is the song we loaded earlier var inputbuffer = audioprocessingevent.inputbuffer; // the output buffer contains the samples that will be modified and played var outputbuffer = audioprocessingevent.outputbuffer...

SourceBuffer.abort() - Web APIs
in this case you would want to manually call abort() on the source buffer to stop the decoding of the current buffer, then fetch and append the newly requested segment that relates to the current new position of the video.

TextDecoder() - Web APIs
if the value for utflabel is unknown, or is one of the two values leading to a 'replacement' decoding algorithm ( "iso-2022-cn" or "iso-2022-cn-ext"), a domexception with the "typeerror" value is thrown.

TextDecoder - Web APIs
constructor textdecoder() returns a newly constructed textdecoder that will generate a code point stream with the decoding method specified in parameters.

VideoPlaybackQuality.droppedVideoFrames - Web APIs
frames are typically dropped either before or after decoding them, when it's determined that it will not be possible to draw them to the screen at the correct time.

WebRTC API - Web APIs
rtcrtpreceiver manages the reception and decoding of data for a mediastreamtrack on an rtcpeerconnection.

Writing WebSocket servers - Web APIs
decoding payload length to read the payload data, you must know when to stop reading.

Web Audio API - Web APIs
an audio context controls the creation of the nodes it contains and the execution of the audio processing, or decoding.

Sending and Receiving Binary Data - Web APIs
you will need a png decoding library for that.

Web APIs
calmediastream location lock lockmanager lockedfile m midiaccess midiconnectionevent midiinput midiinputmap midimessageevent midioutputmap mscandidatewindowhide mscandidatewindowshow mscandidatewindowupdate msgestureevent msgraphicstrust msmanipulationevent msrangecollection mssitemodeevent magnetometer mathmlelement mediacapabilities mediacapabilitiesinfo mediaconfiguration mediadecodingconfiguration mediadeviceinfo mediadevices mediaelementaudiosourcenode mediaencodingconfiguration mediaerror mediaimage mediakeymessageevent mediakeysession mediakeystatusmap mediakeysystemaccess mediakeysystemconfiguration mediakeys medialist mediametadata mediapositionstate mediaquerylist mediaquerylistevent mediaquerylistlistener mediarecorder mediarecordererrorevent mediasession mediasessi...

Cognitive accessibility - Accessibility
define abbreviations abbreviations can be confusing for people who: have difficulty decoding words.

Live streaming web audio and video - Developer guides
for example, you could implement mpeg-dash using javascript while offloading the decoding to mse.

Setting up adaptive streaming media sources - Developer guides
note: since mpeg-dash decoding is done partially using javascript and mse files are often grabbed using xhr, keep same origin rules in mind.

HTML attribute reference - HTML: Hypertext Markup Language
decoding <img> indicates the preferred method to decode the image.

Data URLs - HTTP
encoding in javascript the web apis have native methods to encode or decode to base64: base64 encoding and decoding.

WebAssembly.CompileError() constructor - JavaScript
the webassembly.compileerror() constructor creates a new webassembly compileerror object, which indicates an error during webassembly decoding or validation.

WebAssembly.CompileError - JavaScript
the webassembly.compileerror object indicates an error during webassembly decoding or validation.

WebAssembly - JavaScript
constructor properties webassembly.compileerror() indicates an error during webassembly decoding or validation.

decodeURI() - JavaScript
examples decoding a cyrillic url decodeuri('https://developer.mozilla.org/ru/docs/javascript_%d1%88%d0%b5%d0%bb%d0%bb%d1%8b'); // "https://developer.mozilla.org/ru/docs/javascript_шеллы" catching errors try { var a = decodeuri('%e0%a4%a'); } catch(e) { console.error(e); } // urierror: malformed uri sequence specifications specification ecmascript (ecma-262)the definition of 'd...

decodeURIComponent() - JavaScript
examples decoding a cyrillic url component decodeuricomponent('javascript_%d1%88%d0%b5%d0%bb%d0%bb%d1%8b'); // "javascript_шеллы" catching errors try { var a = decodeuricomponent('%e0%a4%a'); } catch(e) { console.error(e); } // urierror: malformed uri sequence decoding query parameters from a url decodeuricomponent cannot be used directly to parse query parameters from a url.

encodeURIComponent() - JavaScript
this will encode "&" symbols that may inadvertently be generated during data entry for special html entities or other characters that require encoding/decoding.

Image file type and format guide - Web media technologies
mime type image/webp file extension(s) .webp specification riff container specification rfc 6386: vp8 data format and decoding guide (lossy encoding) webp lossless bitstream specification browser compatibility feature chrome edge firefox internet explorer opera safari lossy webp support 17 18 65 no 11.10 (presto) 15 (blink) no lossless webp ...

Codecs used by WebRTC - Web media technologies
if you select avc, make sure you're; aware of any potential fees you may need to pay; that said, the patent holders have generally said that most typical web site developers shouldn't need to worry about paying the license fees, which are typically focused more on the developers of the encoding and decoding software.

Media type and format guide: image, audio, and video content - Web media technologies
other topics media capabilities api the media capabilities api lets you discover the encoding and decoding capabilities of the device your app or site is running on.

Web media technologies
apis media capabilities api the media capabilities api lets you determine the encoding and decoding capabilities of the device your app or site is running on.

Performance fundamentals - Web Performance
many years of improvements targeting this content, like parallel html parsing, intelligent scheduling of reflows and image decoding, clever layout algorithms, etc., translate just as well to improving web applications on firefox.