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EBU Tech 3350, 3370 & 3380 conformance requirements
EyalLavi edited this page Jan 27, 2017
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8 revisions
This list is based on version 0.9 of Tech 3370 and does not take into account changes made in version 1.0. Treat Part 3 requirements with caution.
| R# | 3350 v1.1 section |
3770 section | 3380 Section | EBU-TT 1.0 (3350) statement | EBU-TT 1.1 (3350) statement | EBU-TT Live (3370) statement | EBU-TT-D (3380) statement |
|---|---|---|---|---|---|---|---|
| E1 | 2.2 | 2.2 | If an element has a tt:metadata as child element, tt:metadata shall appear before all other child elements that are defined for this element |
No change | No change | No change | |
| E2 | 2.2 | 2.2 | Extension elements within tt:metadata elements, their attributes and their XML content SHALL NOT be in a namespace defined by the TTML 1.0 specification or in a namespace defined in a valid (not deprecated) version of an EBU-TT specification. |
No change | No change | ||
| E3 | 2.4 | 3.2.1 | 3.2 | The attributes begin and end SHALL be specified on tt:p
|
No change |
The attributes begin and end MAY be specified on tt:body, tt:div, tt:p or tt:span.
|
The attributes begin and end SHALL be specified on tt:p or tt:span
|
| E4 | TTML | 2.4 | A document MAY contain overlapping regions that are active at the same time. | No change | A document SHALL NOT contain overlapping regions that are active at the same time. |
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| E5 | 2.6 | 3 |
xml:space attribute MAY be added to tt:tt, <code>tt:p</code> and tt:span. |
No change |
|
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| E6 | 3 | 3 |
ttp:timeBase SHALL be specified on tt:tt and have one of the values media or smpte. |
ttp:timeBase SHALL be specified on tt:tt and have one of the values media, smpte or <code>clock</code> |
ttp:timeBase SHALL be specified on tt:tt and have one of the values media, smpte or <code>clock</code> |
ttp:timeBase SHALL be specified on tt:tt and have the value media.
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| E7 | 3 | 3 | If ttp:timeBase="smpte" Then the time expression of begin and end attributes SHALL have the format hh:mm:ss:ff
|
No change | N/A (media timebase only allowed) | ||
| E8 | 3 | 3 |
If
|
No change | Time expression of |
||
| E9 | 3 | 3 | N/A (clock timebase not allowed) |
If [0-23]:[0-59]:[0-60] The value |
N/A (media timebase only allowed) | ||
| E10 | 3 | 3 | If |
No change |
ttp:markerMode, <code>ttp:frameRate</code> and ttp:dropMode SHALL NOT be specified
|
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| E11 | 3 | 3 |
If timebase="smpte" then ttp:markerMode SHALL be specified and shall have the value discontinuous. |
No change |
ttp:markerMode SHALL NOT be specified |
||
| E12 | 3 |
If timebase="smpte" and the calculation of the frame rate from the ttp:frameRate and ttp:frameRateMultiplier results in an integer, then ttp:dropMode SHALL be "nonDrop". |
No change |
ttp:dropMode SHALL NOT be specified
|
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| E13 | 3 | 3 | N/A | If ttp:timeBase="clock" then ttp:clockMode SHALL be specified |
N/A (media timebase only allowed) | ||
| E14 | 3 | 3 |
ttp:cellResolution SHALL have the default value 40 24 . |
ttp:cellResolution SHALL have the default value 32 15.
|
ttp:cellResolution SHALL have the default value 32 15
|
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| E15 | 3 | 3 |
If the cell unit is used, ttp:cellResolution SHALL be specified.
|
No change | No change | ||
| E16 | 3 | 3 | If the pixel unit is used, tts:extent SHALL be specified on tt:tt
|
No change |
ttp:extent SHALL NOT be specified on tt:tt
|
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| E17 | 3 | 3 |
xml:lang SHALL be specified on tt:tt
|
No change | No change | ||
| E18 | 3.1.1 | 3.1.1 |
tt:head SHALL contain one tt:metadata element |
tt:head MAY contain one tt:metadata element
|
tt:head MAY contain one tt:metadata element
|
||
| E19 | 3.1.1.1 | 3.1.1 |
<span>tt:metadata</span> SHALL contain one ebuttm:documentMetadata
|
tt:metadata MAY contain one ebuttm:documentMetadata
|
tt:metadata MAY contain one ebuttm:documentMetadata
|
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| E20 | 3.1.1.1.1 | 3.1.1.1 |
ebuttm:conformsToStandard SHALL NOT be specified
|
ebuttm:conformsToStandard MAY be specified within ebuttm:documentMetadata with the value urn:ebu:tt:exchange:2015-09
|
ebuttm:conformsToStandard MAY be specified within ebuttm:documentMetadata with the value urn:ebu:tt:distribution:2014-01
|
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| E21 | 3.1.1.1.2 | N/A |
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ebuttm:documentEbuttVersion MAY be specified within ebuttm:documentMetadata with the value v1.0
|
ebuttm:documentEbuttVersion SHALL NOT be specified |
||
| E22 | 3.1.1.1.3 | N/A |
ebuttm:documentIdentifier MAY be specified within ebuttm:documentMetadata |
No change |
ebuttm:documentIdentifier SHALL NOT be specified within ebuttm:documentMetadata |
||
| E23 | 3.1.1.1.4 | N/A |
ebuttm:documentOriginatingSystem MAY be specified within ebuttm:documentMetadata |
No change |
ebuttm:documentOriginatingSystem SHALL NOT be specified within ebuttm:documentMetadata |
||
| E24 | 3.1.1.1.5 | 3.1.1 |
ebuttm:documentCopyright MAY be specified within ebuttm:documentMetadata |
No change (deprecated) |
ebuttm:documentCopyright SHALL NOT be specified |
||
| E25 | 3.1.2 | 3.1.1.1 | N/A |
ttm:copyright MAY be specified within tt:head
|
ttm:copyright MAY be specified within tt:head
|
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| E26 | 3.1.1.1.8 | N/A | If ebuttm:documentTargetActiveFormatDescriptor is specified then ebuttm:documentTargetAspectRatio SHALL be specified with one of the values 4:3 or 16:9
|
No change | N/A | ||
| E27 | 3.1.1.1.8 |
ebuttm:documentTargetActiveFormatDescriptor MAY be specified |
ebuttm:documentTargetActiveFormatDescriptor SHALL NOT be specified |
||||
| E28 | 3.1.1.1.8 | If specified, ebuttm:documentTargetActiveFormatDescriptor SHALL have one of the AFD codes specified in SMPTE ST 2016-1:2009 |
No change |
ebuttm:documentTargetActiveFormatDescriptor SHALL NOT be specified
|
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| E29 | 3.1.1.1.9 | If specified, ebuttm:documentIntendedTargetBarData SHALL be specified in accordance with SMPTE ST2016-1:2009 Table 3 |
No change | ebuttm:documentIntendedTargetBarData SHALL NOT be specified |
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| E30 | 3.1.1.1.9 |
If specified, ebuttm:documentIntendedTargetBarData SHALL have the attribute position specified.
|
ebuttm:documentIntendedTargetBarData SHALL NOT be specified
|
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| E31 | 3.1.1.1.9 | If the |
No change |
ebuttm:documentIntendedTargetBarData SHALL NOT be specified
|
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| E32 | 3.1.1.1.9 | If the position attribute has the value leftRight then the ebuttm:documentIntendedTargetBarData element SHALL also contain the pixelNumberEndOfLeftBar and pixelNumberStartOfRightBar attributes. |
No change |
ebuttm:documentIntendedTargetBarData SHALL NOT be specified
|
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| E33 | 3.1.3 | 3.2.1 | 3.1.2 |
tt:head SHALL contain one tt:styling element |
tt:head MAY contain one tt:styling element
|
tt:head MAY contain one tt:styling element
|
tt:head MAY contain one tt:styling element
|
| E34 | 3.1.3.2 | 3.1.2.1 |
tt:styling SHALL contain one or more tt:style elements |
No change | No change | ||
| E35 | 3.1.4.2 |
3.1.2.1 | A style attribute that is defined for tt:region SHALL NOT appear in tt:style and vice versa. The only exception from this rule is the tts:padding attribute. tts:padding may appear in both tt:style and tt:region. |
No change | No change | The style attributes of the |
|
| E36 | 3.1.3.2 | 3.1.2.1 |
tt:div, tt:p and tt:span elements SHALL only use references to style definitions |
No change | No change | ||
| E37 | 3.1.3.2 | (TTML) | The default value of tts:fontSize SHALL be 1c 2c
|
The default value of tts:fontSize SHALL be 1c
|
The default value of tts:fontSize SHALL be 100%
|
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| E38 | 3.1.3.2 | (TTML) | The default value of tts:textAlign SHALL be center
|
The default value of tts:textAlign SHALL be start
|
The default value of tts:textAlign SHALL be start
|
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| E39 | 3.1.3.2 | 3.1.2.1 |
tts:wrapOption SHALL NOT be specified |
tts:wrapOption MAY be specified |
tts:wrapOPtion MAY be specified
|
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| E40 | 3.1.3.2 | 3.1.2.1 |
tts:linePadding SHALL NOT be specified |
tts:linePadding MAY be specified |
tts:linePadding MAY be specified
|
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| E41 | 3.1.4 | 3.2.1 | 3.1.3 |
tt:head SHALL contain one tt:layout element |
tt:head SHALL contain one tt:layout element
|
tt:head MAY contain one tt:layout element
|
tt:head SHALL contain one tt:layout element
|
| E42 | 3.1.4.2 | 3.1.3.1 |
tt:layout SHALL contain one or more tt:region elements |
No change | No change | ||
| E43 | 3.1.4.2 | 3.1.3.1 | The attributes tt:origin and tt:extent SHALL be specified on tt:layout
|
No change |
The attributes tt:origin and tt:extent SHALL be specified on tt:layout and SHALL use percent values only.
|
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| E44 | 3.1.4.2 | 3.1.3.1 | If the region exceeds the the boundary of the active video, the display of the region SHALL be clipped. | No change | The region SHALL NOT extend outside the root container region. |
||
| E45 | 3.1.4.2 | 3.1.3.1 | The initial value of tts:displayAlign SHALL be after |
The initial value of tts:displayAlign SHALL be before |
The initial value of tts:displayAlign SHALL be before
|
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| E46 | 3.2 | 3.2.1 | 3.2 |
tt:tt SHALL contain one tt:body element |
tt:tt MAY contain one tt:body element |
tt:tt MAY contain one tt:body element
|
tt:tt MAY contain one tt:body element
|
| E47 | 3.2.2 | 3.2.1 |
tt:body SHALL contain one or more tt:div elements. |
tt:body SHALL contain one or more tt:div elements.
|
tt:body MAY contain one or more tt:div elements.
|
tt:body SHALL contain one or more tt:div elements.
|
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| E48 | 3.2.2.2 | 3.2.1 |
t:div MAY contain child tt:div elements.
|
No change |
tt:div SHALL NOT contain child tt:div elements. |
||
| E49 | 3.2.2.3 | 3.2.2.5 | 3.2.1.1 |
tt:div SHALL contain one or more tt:p elements |
tt:div MAY contain one or more tt:p elements
|
tt:div MAY contain one or more tt:p elements
|
tt:div SHALL contain one or more tt:p elements
|
| E50 | 3.2.2.3 | 3.2.1 | 3.2.1.1 | The attributes begin and end SHALL be specified on tt:p
|
The attributes begin and end SHALL be specified on tt:p
|
The attributes begin and end MAY be specified on tt:p
|
The attributes begin and end MAY be specified on tt:p
|
| E51 | 3.2.2.3.2 | 3.2.1.1 |
tt:p MAY contain one tt:br element |
tt:p MAY contain one or more tt:br elements
|
tt:p MAY contain one or more tt:br elements
|
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| E52 | 3.2.2.3.3 |
3.2.1.1 |
begin and end attributes MAY be added to tt:p and its descendent tt:span elements. |
No change |
|
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| E53 | 3.2.2.3.3 | 3.2.1.1.1 |
tt:span MAY contain one or more tt:span elements
|
No change |
tt:span SHALL NOT contain tt:span elements
|
||
| E54 | 4.2 | 4.2 | Colour values SHALL be constrained to a named colour string, a RGB colour triple, RGBA colour tuple, a hex notated RGB colour triple or a hex notated RGBA colour tuple. | No change | Colour values SHALL be constrained to a hex notated RGB colour triple or a hex notated RGBA colour tuple. | ||
| E55 | 4.3 | 4.3 |
extent values SHALL be constrained to non-negative numbers appended by percentage “%”, c” (for cells) or “px” (for pixels).
|
No change |
extent values SHALL be constrained to non-negative numbers appended by the percentage sign “%”. The metrics “c” (for cells) and “px” (for pixels) SHALL NOT be used.
|
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| E56 | 4.5 | 4.5 |
tts:fontSize values SHALL be constrained to non-negative numbers appended by “%”, c” or “px”.
|
tts:fontSize values SHALL be constrained to non-negative numbers appended by "c" or “px”.
|
tts:fontSize values SHALL be constrained to non-negative numbers appended by "c" or “px”.
|
fontSize values SHALL be constrained to non-negative numbers appended by “%”. The metrics “c” (for cells) and “px” (for pixels) SHALL NOT be used.
|
|
| E57 | 4.6 | 4.6 |
ttp:frameRateMultiplier values SHALL be constrained to two positive integers delimited by space |
No change | No change | ||
| E58 | 4.8 | 4.11 |
tts:linePadding SHALL NOT be specified.
|
tts:linePadding values SHALL be constrained to one non-negative decimal appended by "c" (cell) |
tts:linePadding values SHALL be constrained to one non-negative decimal appended by "c" (cell)
|
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| E59 | 4.9 | 4.8 |
tts:lineHeight values SHALL be constrained to the string normal or a non-negative number appended by percentage “%”, c” (for cells) or “px” (for pixels).
|
No change |
tts:lineHeight values SHALL be constrained to the string normal or a non-negative number appended by percentage “%”.
|
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| E60 | 4.10 | 4.9 |
origin values SHALL be constrained to two non-negative numbers appended by percentage “%”, c” (for cells) or “px” (for pixels) delimited by a space.
|
No change |
origin values SHALL be constrained to two non-negative numbers appended by percentage “%”, delimited by a space.
|
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| E61 | 4.11 | 4.10 |
tts:padding values SHALL be constrained to one or four non-negative numbers appended by percentage “%”, c” (for cells) or “px” (for pixels), delimited by a space. |
tts:padding values SHALL be constrained to one, two, three or four non-negative numbers appended by percentage “%”, c” (for cells) or “px” (for pixels), delimited by a space. |
tts:padding values SHALL be constrained to one, two, three or four non-negative numbers appended by percentage “%”, delimited by a space.
|
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| E62 | TTML | 3.2.1 |
tt:div and any of its descendent tt:p MAY both reference a region.
|
No change | No change |
tt:div and tt:p SHALL NOT both reference a region if tt:p is a child of that tt:div. |
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| E63 | 3.2.2.1 |
ebuttp:sequenceIdentifier SHALL be specified on tt:tt
|
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| E64 | 3.2.2.1 |
ebuttp:sequenceNumber SHALL be specified on tt:tt
|
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| E65 | 3.2.2.2 |
If used, these elements SHALL be the first children of the
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| E68 | 2.2 |
If no begin or end attributes are set in the Document, subtitles will be active as soon as they are received, until the next Document is active or the dur has been reached, if set.
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| E69 | 2.2 | If no document is active, or if a document with no content is active, no content shall be displayed. | |||||
| E70 | 3.2.2.3 |
dur SHALL NOT be specified |
dur SHALL NOT be specified
|
dur MAY be specified on tt:body
|
dur SHALL NOT be specified |