Compliance levels - Revision history

SMIL T.A.: Added related links

2010-10-22T02:04:01Z

Added related links

SMIL T.A. at 02:02, 22 October 2010

2010-10-22T02:02:55Z

SMIL T.A.: Added A-SMIL extensions to Level 1 and Level 2

2010-08-27T06:10:29Z

Added A-SMIL extensions to Level 1 and Level 2

SMIL T.A.: Created

2010-08-27T06:06:24Z

Created

New page

The W3C SMIL standard specifies profiles that allow implementations to incrementally add support for SMIL features. However in real application, we feel that the profiles may be insufficient and some times over-complicated to use as a definition. Here is an attempt to define SMIL performance levels by A-SMIL.org.

{| class="wikitable" border="1" style="margin: 1em auto 1em auto"
|-
! Feature
! Level 0
! Level 1
! Level 2
! SMIL feature
|-
| Sequential playlist
| X
| X
| X
| <seq>
|-
| Image, video and audio objects
| X
| X
| X
| <img>, <video>, <audio>
|-
| Wallclock for date/time/recurrence scheduling
|
| X
| X
| wallclock()
|-
| Auto reload
|
| X
| X
| <meta http-equiv="Refresh">
|-
| Interrupts supporting priority
|
| X
| X
| <excl>, <priorityClass>
|-
| Background file transfer
|
| X
| X
| <prefetch>
|-
| Conditional play based on dynamic states
|
| X
| X
| expr=""
|-
| Parallel playlist
|
|
| X
| <par>
|-
| Screen layout control
|
|
| X
| <region>
|-
| Animation (for crawls)
|
|
| X
| <animate>
|-
| Text rendering
|
|
| X
| <smilText>
|}

'''Level 0''' are quick and easy SMIL implementations useful for stand-alone, full-screen, looping only, playback only applications.

'''Level 1''' are full-screen SMIL implementations capable of network management and complex scheduling.

'''Level 2''' are more sophisticated SMIL implementations useful for general digital signage applications on a large display.

← Older revision		Revision as of 02:04, 22 October 2010
Line 81:		Line 81:

	'''Level 2''' are more sophisticated SMIL implementations useful for general digital signage applications on a large display.		'''Level 2''' are more sophisticated SMIL implementations useful for general digital signage applications on a large display.
		+
		+	== Related ==
		+
		+	* [[Reference\|SMIL Reference]]: A table of SMIL elements
		+	* [[Wallclock\|SMIL Wallclock Scheduling]]: ISO-8601 date/time, repeats

@@ Line 74: / Line 74: @@
 | X
 | <animate>
 |}

@@ Line 50: / Line 50: @@
 | X
 | expr=""
 |-
 | Parallel playlist