PR_Seek
deprecated in favor of pr_seek64.
... syntax #include <prio.h> print32 pr_seek( prfiledesc *fd, print32 offset, prseekwhence whence); parameters the function has the following parameters: fd a pointer to a prfiledesc object.
...a negative value causes seeking in the reverse direction.
...And 6 more matches

Media buffering, seeking, and time ranges - Developer guides
this article discusses how to build a buffer/seek bar using timeranges, and other features of the media api.
...elementbyid('my-audio'); var mycanvas = document.getelementbyid('my-canvas'); var context = mycanvas.getcontext('2d'); context.fillstyle = 'lightgray'; context.fillrect(0, 0, mycanvas.width, mycanvas.height); context.fillstyle = 'red'; context.strokestyle = 'white'; var inc = mycanvas.width / myaudio.duration; // display timeranges myaudio.addeventlistener('seeked', function() { for (i = 0; i < myaudio.buffered.length; i++) { var startx = myaudio.buffered.start(i) * inc; var endx = myaudio.buffered.end(i) * inc; var width = endx - startx; context.fillrect(startx, 0, width, mycanvas.height); context.rect(startx, 0, width, mycanvas.height); context.stroke(); } }); } this works better with...
... seekable the seekable attribute returns a timeranges object and tells us which parts of the media can be played without delay; this is irrespective of whether that part has been downloaded or not.
...And 6 more matches

PR_Seek64
syntax #include <prio.h> print64 pr_seek64( prfiledesc *fd, print64 offset, prseekwhence whence); parameters the function has the following parameters: fd a pointer to a prfiledesc object.
...a negative value causes seeking in the reverse direction.
... whence a value of type prseekwhence that specifies how to interpret the offset parameter in setting the file pointer associated with the fd parameter.
...And 5 more matches

HTMLMediaElement.seekToNextFrame() - Web APIs
the htmlmediaelement.seektonextframe() method asynchronously advances the the current play position to the next frame in the media.
...this also lets you access media using frames as a seek unit rather than timecodes (albeit only by seeking one frame at a time until you get to the frame you want).
... this method returns immediately, returning a promise, whose fulfillment handler is called when the seek operation is complete.
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nsISeekableStream
xpcom/io/nsiseekablestream.idlscriptable provides seeking support in data streams.
... inherits from: nsisupports last changed in gecko 1.7 method overview void seek(in long whence, in long long offset); void seteof(); long long tell(); constants constant value description ns_seek_set 0 specifies that the offset is relative to the start of the stream.
... ns_seek_cur 1 specifies that the offset is relative to the current position in the stream.
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MediaSessionActionDetails.fastSeek - Web APIs
the boolean property fastseek in the mediasessionactiondetails dictionary is an optional value which, when specified and true, indicates that the requested seekto operation is part of an ongoing series of seekto operations.
... your handler should take steps to return as quickly as possible by skipping any steps of its operation which are only necessary when the seek operation is complete.
... once fastseek is false or not present, the repeating series of seekto actions is complete and you can finalize the state of your web app or content.
...And 3 more matches

MediaSessionActionDetails.seekTime - Web APIs
the mediasessionactiondetails dictionary's seektime property is always included when a seekto action is sent to the action handler callback.
... to change the time by an offset rather than moving to an absolute time, the seekforward or seekbackward actions should be used instead.
... syntax let mediasessionactiondetails = { seektime: abstimeinseconds }; let abstime = mediasessionactiondetails.seektime; value a floating-point value indicating the absolute time in seconds into the media to which to move the current play position.
...And 3 more matches

MediaSource.setLiveSeekableRange() - Web APIs
the setliveseekablerange() method of the mediasource interface sets the range that the user can seek to in the media element.
... syntax mediasource.setliveseekablerange(start, end) parameters start the start of the seekable range to set in seconds measured from the beginning of the source.
... if the duration of the media source is positive infinity, then the timeranges object returned by the htmlmediaelement.seekable property will have a start timestamp no greater than this value.
...And 3 more matches

HTMLMediaElement.fastSeek() - Web APIs
the htmlmediaelement.fastseek() method quickly seeks the media to the new time with precision tradeoff.
... note: if you need to seek with precision, you should set htmlmediaelement.currenttime instead.
... syntax htmlmediaelement.fastseek(time); parameters time a double.
...And 2 more matches

HTMLMediaElement.seekable - Web APIs
the seekable read-only property of the htmlmediaelement returns a timeranges object that contains the time ranges that the user is able to seek to, if any.
... syntax var seekable = audioorvideo.seekable; value a timeranges object.
... examples var video = document.queryselector("video"); var timerangesobject = video.seekable; var timeranges = []; //go through the object and output an array for (let count = 0; count < timerangesobject.length; count ++) { timeranges.push([timerangesobject.start(count), timerangesobject.end(count)]); } specifications specification status comment html living standardthe definition of 'htmlmediaelement' in that specification.
...And 2 more matches

PRSeekWhence
specifies how to interpret the offset parameter in setting the file pointer associated with the fd parameter for the pr_seek and pr_seek64 functions.
... syntax #include <prio.h> typedef prseekwhence { pr_seek_set = 0, pr_seek_cur = 1, pr_seek_end = 2 } prseekwhence; enumerators the enumeration has the following enumerators: pr_seek_set sets the file pointer to the value of the offset parameter.
... pr_seek_cur sets the file pointer to its current location plus the value of the offset parameter.
... pr_seek_end sets the file pointer to the size of the file plus the value of the offset parameter.

HTMLMediaElement: seeked event - Web APIs
the seeked event is fired when a seek operation completed, the current playback position has changed, and the boolean seeking attribute is changed to false.
... bubbles no cancelable no interface event target element default action none event handler property globaleventhandlers.onseeked specification html5 media examples these examples add an event listener for the htmlmediaelement's seeked event, then post a message when that event handler has reacted to the event firing.
... using addeventlistener(): const video = document.queryselector('video'); video.addeventlistener('seeked', (event) => { console.log('video found the playback position it was looking for.'); }); using the onseeked event handler property: const video = document.queryselector('video'); video.onseeked = (event) => { console.log('video found the playback position it was looking for.'); }; specifications specification status html living standardthe definition of 'seeked media event' in that specification.
... living standard html5the definition of 'seeked media event' in that specification.

HTMLMediaElement: seeking event - Web APIs
the seeking event is fired when a seek operation starts, meaning the boolean seeking attribute has changed to true and the media is seeking a new position.
... bubbles no cancelable no interface event target element default action none event handler property globaleventhandlers.onseeking specification html5 media examples these examples add an event listener for the htmlmediaelement's seeking event, then post a message when that event handler has reacted to the event firing.
... using addeventlistener(): const video = document.queryselector('video'); video.addeventlistener('seeking', (event) => { console.log('video is seeking a new position.'); }); using the onseeking event handler property: const video = document.queryselector('video'); video.onseeking = (event) => { console.log('video is seeking a new position.'); }; specifications specification status html living standardthe definition of 'seeking media event' in that specification.
... living standard html5the definition of 'seeking media event' in that specification.

MediaSessionActionDetails.seekOffset - Web APIs
the mediasessionactiondetails dictionary's seekoffset property is an optional value passed into the action handler callback to provide the number of seconds the seekforward and seekbackward actions should move the playback time by.
... syntax let mediasessionactiondetails = { seekoffset: deltatimeinseconds }; let deltatime = mediasessionactiondetails.seekoffset; value a floating-point value indicating the time delta in seconds by which to move the playback position relative to its current timestamp.
... specifications specification status comment media session standardthe definition of 'mediasessionactiondetails.seekoffset' in that specification.

MediaSource.clearLiveSeekableRange() - Web APIs
the clearliveseekablerange() method of the mediasource interface clears a seekable range previously set with a call to setliveseekablerange().
... syntax mediasource.clearliveseekablerange() parameters none.
... return value undefined specifications specification status comment media source extensionsthe definition of 'clearliveseekablerange()' in that specification.