1<? wireshark:protocol 2 proto_name="smil" 3 media="application/smil" 4 description="Synchronized Multimedia Integration Language" 5 ?> 6 7<!-- 8 9 This is the XML document type definition (DTD) for SMIL 1.0. 10 11 Date: 1998/06/15 08:56:30 12 13 Authors: 14 Jacco van Ossenbruggen <jrvosse@cwi.nl> 15 Sjoerd Mullender <sjoerd@cwi.nl> 16 17 Further information about SMIL is available at: 18 19 https://www.w3.org/AudioVideo/ 20 21--> 22 23 24<!-- Generally useful entities --> 25<!ENTITY % id-attr "id ID #IMPLIED"> 26<!ENTITY % title-attr "title CDATA #IMPLIED"> 27<!ENTITY % skip-attr "skip-content (true|false) 'true'"> 28<!ENTITY % desc-attr " 29 %title-attr; 30 abstract CDATA #IMPLIED 31 author CDATA #IMPLIED 32 copyright CDATA #IMPLIED 33"> 34 35<!--=================== SMIL Document =====================================--> 36<!-- 37 The root element SMIL contains all other elements. 38--> 39<!ELEMENT smil (head?,body?)> 40<!ATTLIST smil 41 %id-attr; 42> 43 44<!--=================== The Document Head =================================--> 45<!ENTITY % layout-section "layout|switch"> 46 47<!ENTITY % head-element "(meta*,((%layout-section;), meta*))?"> 48 49<!ELEMENT head %head-element;> 50<!ATTLIST head %id-attr;> 51 52 53<!--=================== Layout Element ====================================--> 54<!-- 55 Layout contains the region and root-layout elements defined by 56 smil-basic-layout or other elements defined an external layout 57 mechanism. 58--> 59<!ELEMENT layout (region|root-layout)> 60<!ATTLIST layout 61 %id-attr; 62 type CDATA "text/smil-basic-layout" 63> 64 65 66<!--=================== Region Element ===================================--> 67<!ENTITY % viewport-attrs " 68 height CDATA #IMPLIED 69 width CDATA #IMPLIED 70 background-color CDATA #IMPLIED 71"> 72 73<!ELEMENT region EMPTY> 74<!ATTLIST region 75 %id-attr; 76 %title-attr; 77 %viewport-attrs; 78 left CDATA "0" 79 top CDATA "0" 80 z-index CDATA "0" 81 fit (hidden|fill|meet|scroll|slice) "hidden" 82 %skip-attr; 83> 84 85<!--=================== Root-layout Element ================================--> 86<!ELEMENT root-layout EMPTY> 87<!ATTLIST root-layout 88 %id-attr; 89 %title-attr; 90 %viewport-attrs; 91 %skip-attr; 92> 93 94 95<!--=================== Meta Element=======================================--> 96<!ELEMENT meta EMPTY> 97<!ATTLIST meta 98 name NMTOKEN #REQUIRED 99 content CDATA #REQUIRED 100 %skip-attr; 101> 102 103<!--=================== The Document Body =================================--> 104<!ENTITY % media-object "audio|video|text|img|animation|textstream|ref"> 105<!ENTITY % schedule "par|seq|(%media-object;)"> 106<!ENTITY % inline-link "a"> 107<!ENTITY % assoc-link "anchor"> 108<!ENTITY % link "%inline-link;"> 109<!ENTITY % container-content "(%schedule;)|switch|(%link;)"> 110<!ENTITY % body-content "(%container-content;)"> 111 112<!ELEMENT body (%body-content;)*> 113<!ATTLIST body %id-attr;> 114 115<!--=================== Synchronization Attributes ========================--> 116<!ENTITY % sync-attributes " 117 begin CDATA #IMPLIED 118 end CDATA #IMPLIED 119"> 120 121<!--=================== Switch Parameter Attributes =======================--> 122<!ENTITY % system-attribute " 123 system-bitrate CDATA #IMPLIED 124 system-language CDATA #IMPLIED 125 system-required NMTOKEN #IMPLIED 126 system-screen-size CDATA #IMPLIED 127 system-screen-depth CDATA #IMPLIED 128 system-captions (on|off) #IMPLIED 129 system-overdub-or-caption (caption|overdub) #IMPLIED 130"> 131 132<!--=================== Fill Attribute ====================================--> 133<!ENTITY % fill-attribute " 134 fill (remove|freeze) 'remove' 135"> 136 137 138<!--=================== The Parallel Element ==============================--> 139<!ENTITY % par-content "%container-content;"> 140<!ELEMENT par (%par-content;)*> 141<!ATTLIST par 142 %id-attr; 143 %desc-attr; 144 endsync CDATA "last" 145 dur CDATA #IMPLIED 146 repeat CDATA "1" 147 region IDREF #IMPLIED 148 %sync-attributes; 149 %system-attribute; 150> 151 152<!--=================== The Sequential Element ============================--> 153<!ENTITY % seq-content "%container-content;"> 154<!ELEMENT seq (%seq-content;)*> 155<!ATTLIST seq 156 %id-attr; 157 %desc-attr; 158 dur CDATA #IMPLIED 159 repeat CDATA "1" 160 region IDREF #IMPLIED 161 %sync-attributes; 162 %system-attribute; 163> 164 165<!--=================== The Switch Element ================================--> 166<!-- In the head, a switch may contain only layout elements, 167 in the body, only container elements. However, this 168 constraint cannot be expressed in the DTD (?), so 169 we allow both: 170--> 171<!ENTITY % switch-content "layout|(%container-content;)"> 172<!ELEMENT switch (%switch-content;)*> 173<!ATTLIST switch 174 %id-attr; 175 %title-attr; 176> 177 178<!--=================== Media Object Elements =============================--> 179<!-- SMIL only defines the structure. The real media data is 180 referenced by the src attribute of the media objects. 181--> 182 183<!-- Furthermore, they have the following attributes as defined 184 in the SMIL specification: 185--> 186<!ENTITY % mo-attributes " 187 %id-attr; 188 %desc-attr; 189 region IDREF #IMPLIED 190 alt CDATA #IMPLIED 191 longdesc CDATA #IMPLIED 192 src CDATA #IMPLIED 193 type CDATA #IMPLIED 194 dur CDATA #IMPLIED 195 repeat CDATA '1' 196 %fill-attribute; 197 %sync-attributes; 198 %system-attribute; 199"> 200 201<!-- 202 Most info is in the attributes, media objects are empty or 203 contain associated link elements: 204--> 205<!ENTITY % mo-content "(%assoc-link;)*"> 206<!ENTITY % clip-attrs " 207 clip-begin CDATA #IMPLIED 208 clip-end CDATA #IMPLIED 209"> 210 211<!ELEMENT ref %mo-content;> 212<!ELEMENT audio %mo-content;> 213<!ELEMENT img %mo-content;> 214<!ELEMENT video %mo-content;> 215<!ELEMENT text %mo-content;> 216<!ELEMENT textstream %mo-content;> 217<!ELEMENT animation %mo-content;> 218 219<!ATTLIST ref %mo-attributes; %clip-attrs;> 220<!ATTLIST audio %mo-attributes; %clip-attrs;> 221<!ATTLIST video %mo-attributes; %clip-attrs;> 222<!ATTLIST animation %mo-attributes; %clip-attrs;> 223<!ATTLIST textstream %mo-attributes; %clip-attrs;> 224<!ATTLIST text %mo-attributes;> 225<!ATTLIST img %mo-attributes;> 226 227<!--=================== Link Elements =====================================--> 228 229<!ENTITY % smil-link-attributes " 230 %id-attr; 231 %title-attr; 232 href CDATA #REQUIRED 233 show (replace|new|pause) 'replace' 234"> 235 236 237<!--=================== Inline Link Element ===============================--> 238<!ELEMENT a (%schedule;|switch)*> 239<!ATTLIST a 240 %smil-link-attributes; 241> 242 243 244<!--=================== Associated Link Element ===========================--> 245<!ELEMENT anchor EMPTY> 246<!ATTLIST anchor 247 %skip-attr; 248 %smil-link-attributes; 249 %sync-attributes; 250 coords CDATA #IMPLIED 251> 252 253