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jpeg.grammar
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<?xml version="1.0" encoding="UTF-8"?>
<ufwb version="1.8.1">
<grammar name="JPEG" start="id:1369" author="Andreas Pehnack" email="[email protected]" fileextension="jpg,jpeg" uti="public.jpeg">
<description>Grammar for JPEG files</description>
<structure name="JPG file" id="1369" encoding="ISO_8859-1:1987" endian="big" signed="no">
<structure name="Markers" id="1370" repeatmax="-1" order="variable">
<structref name="SOI" id="1372" repeatmin="0" structure="id:1371"/>
<structref name="SOF0" id="1374" repeatmin="0" structure="id:1373"/>
<structref name="ImageData" id="1376" repeatmin="0" structure="id:1375"/>
<structref name="RestartImageData" id="1378" repeatmin="0" structure="id:1377"/>
<structref name="COMMENT" id="1380" repeatmin="0" structure="id:1379"/>
<structref name="DHP" id="1382" repeatmin="0" structure="id:1381"/>
<structref name="DHT" id="1384" repeatmin="0" structure="id:1383"/>
<structref name="DNL" id="1386" repeatmin="0" structure="id:1385"/>
<structref name="DRI" id="1388" repeatmin="0" structure="id:1387"/>
<structref name="DQT" id="1390" repeatmin="0" structure="id:1389"/>
<structref name="EOI" id="1392" repeatmin="0" structure="id:1391"/>
<structref name="EXP" id="1394" repeatmin="0" structure="id:1393"/>
<structref name="APP0" id="1396" repeatmin="0" structure="id:1395"/>
<structref name="App1_XMP" id="1398" repeatmin="0" structure="id:1397"/>
<structref name="App1_EXIF" id="1400" repeatmin="0" structure="id:1399"/>
<structref name="App2_ICC" id="1402" repeatmin="0" structure="id:1401"/>
<structref name="App3" id="1404" repeatmin="0" structure="id:1403"/>
<structref name="App4" id="1406" repeatmin="0" structure="id:1405"/>
<structref name="App5" id="1408" repeatmin="0" structure="id:1407"/>
<structref name="App6" id="1410" repeatmin="0" structure="id:1409"/>
<structref name="App7" id="1412" repeatmin="0" structure="id:1411"/>
<structref name="App8" id="1414" repeatmin="0" structure="id:1413"/>
<structref name="App9" id="1416" repeatmin="0" structure="id:1415"/>
<structref name="App10" id="1418" repeatmin="0" structure="id:1417"/>
<structref name="App11" id="1420" repeatmin="0" structure="id:1419"/>
<structref name="App12" id="1422" repeatmin="0" structure="id:1421"/>
<structref name="App13_Adobe" id="1424" repeatmin="0" structure="id:1423"/>
<structref name="App13_Photoshop" id="1426" repeatmin="0" structure="id:1425"/>
<structref name="App14" id="1428" repeatmin="0" structure="id:1427"/>
<structref name="App15" id="1430" repeatmin="0" structure="id:1429"/>
<structref name="JPG" id="1432" repeatmin="0" structure="id:1431"/>
<structref name="JPG0" id="1434" repeatmin="0" structure="id:1433"/>
<structref name="JPG1" id="1436" repeatmin="0" structure="id:1435"/>
<structref name="JPG2" id="1438" repeatmin="0" structure="id:1437"/>
<structref name="JPG3" id="1440" repeatmin="0" structure="id:1439"/>
<structref name="JPG4" id="1442" repeatmin="0" structure="id:1441"/>
<structref name="JPG5" id="1444" repeatmin="0" structure="id:1443"/>
<structref name="JPG6" id="1446" repeatmin="0" structure="id:1445"/>
<structref name="JPG7" id="1448" repeatmin="0" structure="id:1447"/>
<structref name="JPG8" id="1450" repeatmin="0" structure="id:1449"/>
<structref name="JPG9" id="1452" repeatmin="0" structure="id:1451"/>
<structref name="JPG10" id="1454" repeatmin="0" structure="id:1453"/>
<structref name="JPG11" id="1456" repeatmin="0" structure="id:1455"/>
<structref name="JPG12" id="1458" repeatmin="0" structure="id:1457"/>
<structref name="JPG13" id="1460" repeatmin="0" structure="id:1459"/>
<structref name="Marker" id="1462" repeatmin="0" structure="id:1461"/>
</structure>
</structure>
<structure name="Marker" id="1461" length="2" encoding="ISO_8859-1:1987" endian="big" signed="no">
<number name="Fixed" mustmatch="yes" id="1465" fillcolor="73FDFF" type="integer" length="1" display="hex">
<fixedvalues>
<fixedvalue name="FF" value="0xFF"/>
</fixedvalues>
</number>
<number name="ID" mustmatch="yes" id="1466" fillcolor="75D5FF" type="integer" length="1" display="hex"/>
</structure>
<structure name="SegmentMarker" id="1468" length="length+2" extends="id:1461" encoding="ISO_8859-1:1987" endian="big" signed="no">
<number name="Fixed" id="1469" type="integer"/>
<number name="ID" id="1470" type="integer"/>
<number name="length" id="1471" type="integer" length="2">
<description>Total field byte count, including the byte count value (2 bytes), but excluding the marker itself</description>
</number>
</structure>
<structure name="SOI" id="1371" extends="id:1461">
<description>start-of-image marker</description>
<number name="Fixed" id="1473" type="integer"/>
<number name="ID" id="1474" type="integer">
<fixedvalues>
<fixedvalue name="D8" value="0xD8"/>
</fixedvalues>
</number>
</structure>
<structure name="SOFx" id="1373" extends="id:1468">
<description>baseline DCT process frame marker</description>
<number name="ID" id="1477" type="integer">
<description>SOF0: Baseline DCT SOF1: Extended sequential DCT, Huffman coding SOF2: Progressive DCT, Huffman coding
SOF3: Lossless (sequential), Huffman coding SOF9: Extended sequential DCT, arithmetic coding SOF10: Progressive DCT, arithmetic coding SOF11: Lossless (sequential), arithmetic coding</description>
<fixedvalues>
<fixedvalue name="SOF0" value="0xC0"/>
<fixedvalue name="SOF1" value="0xC1"/>
<fixedvalue name="SOF2" value="0xC2"/>
<fixedvalue name="SOF3" value="0xC3"/>
<fixedvalue name="SOF5" value="0xC5"/>
<fixedvalue name="SOF6" value="0xC6"/>
<fixedvalue name="SOF7" value="0xC7"/>
<fixedvalue name="SOF9" value="0xC9"/>
<fixedvalue name="SOF10" value="0xCA"/>
<fixedvalue name="SOF11" value="0xCB"/>
<fixedvalue name="SOF13" value="0xCD"/>
<fixedvalue name="SOF14" value="0xCE"/>
<fixedvalue name="SOF15" value="0xCF"/>
</fixedvalues>
</number>
<number name="precision" id="1479" type="integer" length="1">
<description>Sample precision – Specifies the precision in bits for the samples of the components in the frame.</description>
</number>
<number name="lines" id="1480" type="integer" length="2">
<description>Number of lines – Specifies the maximum number of lines in the source image. This shall be equal to the number of lines in the component with the maximum number of vertical samples (see A.1.1). Value 0 indicates that the number of lines shall be defined by the DNL marker and parameters at the end of the first scan</description>
</number>
<number name="samples_per_line" id="1481" type="integer" length="2">
<description>Number of samples per line – Specifies the maximum number of samples per line in the source image. This shall be equal to the number of samples per line in the component with the maximum number of horizontal samples</description>
</number>
<number name="components" id="1482" type="integer" length="1">
<description>Number of image components in frame – Specifies the number of source image components in the frame. The value of Nf shall be equal to the number of sets of frame component specification parameters (Ci, Hi, Vi, and Tqi) present in the frame header</description>
</number>
<structure name="Components" id="1483" repeat="id:1482" repeatmax="4">
<number name="ID" id="1484" type="integer" length="1">
<description>Component identifier – Assigns a unique label to the ith component in the sequence of frame component specification parameters. These values shall be used in the scan headers to identify the components in the scan. The value of Ci shall be different from the values of C1 through Ci − 1</description>
</number>
<number name="horzSamplingFactor" id="1485" type="integer" length="4" lengthunit="bit">
<description>Horizontal sampling factor – Specifies the relationship between the component horizontal dimension and maximum image dimension X (see A.1.1); also specifies the number of horizontal data units of component Ci in each MCU, when more than one component is encoded in a scan</description>
</number>
<number name="vertSamplingFactor" id="1486" type="integer" length="4" lengthunit="bit">
<description>Vertical sampling factor – Specifies the relationship between the component vertical dimension and maximum image dimension Y (see A.1.1); also specifies the number of vertical data units of component Ci in each MCU, when more than one component is encoded in a scan</description>
</number>
<number name="destSel" id="1487" type="integer" length="1">
<description>Quantization table destination selector – Specifies one of four possible quantization table destinations from which the quantization table to use for dequantization of DCT coefficients of component Ci is retrieved. If the decoding process uses the dequantization procedure, this table shall have been installed in this destination by the time the decoder is ready to decode the scan(s) containing component Ci. The destination shall not be re- specified, or its contents changed, until all scans containing Ci have been completed</description>
</number>
</structure>
</structure>
<structure name="SOS" id="1490" extends="id:1468">
<description>start-of-scan marker</description>
<number name="ID" id="1492" type="integer">
<fixedvalues>
<fixedvalue name="SOS" value="0xDA"/>
</fixedvalues>
</number>
<number name="length" id="1493" type="integer">
<description>Scan header length – Specifies the length of the scan header</description>
</number>
<number name="components" id="1494" type="integer" length="1">
<description>Number of image components in scan – Specifies the number of source image components in the scan. The value of Ns shall be equal to the number of sets of scan component specification parameters (Csj, Tdj, and Taj) present in the scan header</description>
</number>
<structure name="CompSel" id="1495" repeat="id:1494" repeatmax="-1">
<description>Scan component selector – Selects which of the Nf image components specified in the frame parameters shall be the jth component in the scan. Each Csj shall match one of the Ci values specified in the frame header, and the ordering in the scan header shall follow the ordering in the frame header.</description>
<number name="DC" id="1496" type="integer" length="4" lengthunit="bit">
<description>DC entropy coding table destination selector – Specifies one of four possible DC entropy coding table destinations from which the entropy table needed for decoding of the DC coefficients of component Csj is retrieved. The DC entropy table shall have been installed in this destination (see B.2.4.2 and B.2.4.3) by the time the decoder is ready to decode the current scan. This parameter specifies the entropy coding table destination for the lossless processes</description>
</number>
<number name="AC" id="1497" type="integer" length="4" lengthunit="bit">
<description>AC entropy coding table destination selector – Specifies one of four possible AC entropy coding table destinations from which the entropy table needed for decoding of the AC coefficients of component Csj is retrieved. The AC entropy table selected shall have been installed in this destination (see B.2.4.2 and B.2.4.3) by the time the decoder is ready to decode the current scan. This parameter is zero for the lossless processes</description>
</number>
</structure>
<number name="Ss" id="1499" type="integer" length="1">
<description>Start of spectral or predictor selection – In the DCT modes of operation, this parameter specifies the first DCT coefficient in each block in zig-zag order which shall be coded in the scan. This parameter shall be set to zero for the sequential DCT processes. In the lossless mode of operations this parameter is used to select the predictor.</description>
</number>
<number name="Se" id="1500" type="integer" length="1">
<description>End of spectral selection – Specifies the last DCT coefficient in each block in zig-zag order which shall be coded in the scan. This parameter shall be set to 63 for the sequential DCT processes. In the lossless mode of operations this parameter has no meaning. It shall be set to zero</description>
</number>
<number name="Ah" id="1501" type="integer" length="4" lengthunit="bit">
<description>Successive approximation bit position high – This parameter specifies the point transform used in the preceding scan (i.e. successive approximation bit position low in the preceding scan) for the band of coefficients specified by Ss and Se. This parameter shall be set to zero for the first scan of each band of coefficients. In the lossless mode of operations this parameter has no meaning. It shall be set to zero.</description>
</number>
<number name="AI" id="1502" type="integer" length="4" lengthunit="bit">
<description>Successive approximation bit position low or point transform – In the DCT modes of operation this parameter specifies the point transform, i.e. bit position low, used before coding the band of coefficients specified by Ss and Se. This parameter shall be set to zero for the sequential DCT processes. In the lossless mode of operations, this parameter specifies the point transform, Pt</description>
</number>
</structure>
<structure name="COMMENT" id="1379" extends="id:1468">
<number name="ID" id="1505" type="integer">
<fixedvalues>
<fixedvalue name="COMMENT" value="0xFE"/>
</fixedvalues>
</number>
<string name="Comment" id="1507" type="fixed-length" length="remaining"/>
</structure>
<structure name="DAC" id="1509" extends="id:1468">
<description>Define arithmetic coding conditioning</description>
<number name="ID" id="1511" type="integer">
<fixedvalues>
<fixedvalue name="DAC" value="0xCC"/>
</fixedvalues>
</number>
</structure>
<structure name="DHP" id="1381" extends="id:1468">
<description>Define hierarchical progression</description>
<number name="ID" id="1515" type="integer">
<fixedvalues>
<fixedvalue name="DHP" value="0xDE"/>
</fixedvalues>
</number>
</structure>
<structure name="DHT" id="1383" extends="id:1468">
<description>Define Huffman table(s)</description>
<number name="ID" id="1519" type="integer">
<fixedvalues>
<fixedvalue name="DHT" value="0xC4"/>
</fixedvalues>
</number>
<number name="tableClass" id="1521" type="integer" length="4" lengthunit="bit">
<description>Table class – 0 = DC table or lossless table, 1 = AC table</description>
<fixedvalues>
<fixedvalue name="DC or lossless" value="0"/>
<fixedvalue name="AC" value="1"/>
</fixedvalues>
</number>
<number name="tableDest" id="1522" type="integer" length="4" lengthunit="bit">
<description>Huffman table destination identifier – Specifies one of four possible destinations at the decoder into which the Huffman table shall be installed</description>
</number>
<number name="codes" id="1523" repeatmax="16" type="integer" length="1">
<description>Number of Huffman codes of length i – Specifies the number of Huffman codes for each of the 16 possible lengths allowed by this Specification. Li’s are the elements of the list BITS</description>
</number>
<number name="values" id="1524" repeatmax="-1" type="integer" length="1">
<description>Value associated with each Huffman code – Specifies, for each i, the value associated with each Huffman code of length i. The meaning of each value is determined by the Huffman coding model. The Vi,j’s are the elements of the list HUFFVAL</description>
</number>
</structure>
<structure name="DNL" id="1385" extends="id:1468">
<description>Define number of lines</description>
<number name="ID" id="1527" type="integer">
<fixedvalues>
<fixedvalue name="DNL" value="0xDC"/>
</fixedvalues>
</number>
</structure>
<structure name="DRI" id="1387" extends="id:1468">
<number name="ID" id="1531" type="integer">
<fixedvalues>
<fixedvalue name="DRI" value="0xDD"/>
</fixedvalues>
</number>
<number name="restartInterval" id="1533" type="integer" length="2">
<description>Restart interval – Specifies the number of MCU in the restart interval</description>
</number>
</structure>
<structure name="DQT" id="1389" extends="id:1468">
<description>define-quantization-tables marker</description>
<number name="ID" id="1536" type="integer">
<fixedvalues>
<fixedvalue name="DB" value="0xDB"/>
</fixedvalues>
</number>
<structure name="QuantTable" id="1537" order="variable">
<structref name="QuantTable8" id="1540" repeatmin="0" structure="id:1539"/>
<structref name="QuantTable16" id="1542" repeatmin="0" structure="id:1541"/>
</structure>
</structure>
<structure name="EOI" id="1391" extends="id:1461">
<number name="Fixed" id="1545" type="integer"/>
<number name="ID" id="1546" type="integer">
<fixedvalues>
<fixedvalue name="EOI" value="0xD9"/>
</fixedvalues>
</number>
</structure>
<structure name="EXP" id="1393" extends="id:1468">
<description>Expand reference component</description>
<number name="ID" id="1549" type="integer">
<fixedvalues>
<fixedvalue name="EXP" value="0xDF"/>
</fixedvalues>
</number>
</structure>
<structure name="RSTx" id="1552" extends="id:1461">
<number name="Fixed" id="1553" type="integer"/>
<number name="ID" id="1554" type="integer">
<fixedvalues>
<fixedvalue name="RST0" value="0xD0"/>
<fixedvalue name="RST1" value="0xD1"/>
<fixedvalue name="RST2" value="0xD2"/>
<fixedvalue name="RST3" value="0xD3"/>
<fixedvalue name="RST4" value="0xD4"/>
<fixedvalue name="RST5" value="0xD5"/>
<fixedvalue name="RST6" value="0xD6"/>
<fixedvalue name="RST7" value="0xD7"/>
</fixedvalues>
</number>
</structure>
<structure name="APP0" id="1395" extends="id:1468">
<number name="ID" id="1557" type="integer">
<fixedvalues>
<fixedvalue name="E0" value="0xE0"/>
</fixedvalues>
</number>
<string name="identifier" mustmatch="yes" id="1559" type="fixed-length" length="5">
<description>= X'4A', X'46', X'49', X'46', X'00' This zero terminated string (“JFIF”) uniquely identifies this APP0 marker. This string shall have zero parity (bit 7=0).</description>
<fixedvalues>
<fixedvalue name="JFIF" value="JFIF"/>
</fixedvalues>
</string>
<number name="major version" id="1560" type="integer" length="1"/>
<number name="minor version" id="1561" type="integer" length="1"/>
<number name="units" id="1562" type="integer" length="1">
<description>Units for the X and Y densities</description>
<fixedvalues>
<fixedvalue name="no units" value="0"/>
<fixedvalue name="dots per inch" value="1"/>
<fixedvalue name="dots per cm" value="2"/>
</fixedvalues>
</number>
<number name="Xdensity" id="1563" type="integer" length="2">
<description>Horizontal pixel density</description>
</number>
<number name="Ydensity" id="1564" type="integer" length="2">
<description>Vertical pixel density</description>
</number>
<number name="Xthumbnail" id="1565" type="integer" length="1">
<description>Thumbnail horizontal pixel count</description>
</number>
<number name="Ythumbnail" id="1566" type="integer" length="1">
<description>Thumbnail vertical pixel count</description>
</number>
<structure name="Thumbnail" id="1567" length="Xthumbnail*Ythumbnail" repeatmin="0" repeatmax="-1">
<number name="red" id="1568" type="integer" length="1"/>
<number name="green" id="1569" type="integer" length="1"/>
<number name="blue" id="1570" type="integer" length="1"/>
</structure>
</structure>
<structure name="App1_EXIF" id="1399" extends="id:1468">
<number name="ID" id="1574" type="integer">
<fixedvalues>
<fixedvalue name="E1" value="0xE1"/>
</fixedvalues>
</number>
<grammarref name="Exif" id="1576" disabled="yes" filename="exif.grammar"/>
</structure>
<structure name="App1_XMP" id="1397" extends="id:1468" encoding="ISO_8859-1:1987" endian="big" signed="no">
<number name="ID" id="1579" type="integer">
<fixedvalues>
<fixedvalue name="E1" value="0xE1"/>
</fixedvalues>
</number>
<string name="XMP" mustmatch="yes" id="1581" type="fixed-length" length="29">
<fixedvalues>
<fixedvalue name="ID" value="http://ns.adobe.com/xap/1.0/"/>
</fixedvalues>
</string>
</structure>
<structure name="App2" id="1583" extends="id:1468">
<number name="ID" id="1585" type="integer">
<fixedvalues>
<fixedvalue name="APP2" value="0xE2"/>
</fixedvalues>
</number>
</structure>
<structure name="App2_ICC" id="1401" extends="id:1583">
<string name="ICC" mustmatch="yes" id="1591" type="fixed-length" length="12">
<fixedvalues>
<fixedvalue name="ID" value="ICC_PROFILE"/>
</fixedvalues>
</string>
<number name="blockNum" id="1592" type="integer" length="1"/>
<number name="blockTotal" id="1593" type="integer" length="1"/>
<grammarref name="ICC File" id="1594" disabled="yes" filename="icc.grammar" uti="com.apple.colorsync-profile"/>
</structure>
<structure name="App3" id="1403" extends="id:1468">
<number name="ID" id="1597" type="integer">
<fixedvalues>
<fixedvalue name="APP3" value="0xE3"/>
</fixedvalues>
</number>
</structure>
<structure name="App4" id="1405" extends="id:1468">
<number name="ID" id="1601" type="integer">
<fixedvalues>
<fixedvalue name="APP4" value="0xE4"/>
</fixedvalues>
</number>
</structure>
<structure name="App5" id="1407" extends="id:1468">
<number name="ID" id="1605" type="integer">
<fixedvalues>
<fixedvalue name="APP5" value="0xE5"/>
</fixedvalues>
</number>
</structure>
<structure name="App6" id="1409" extends="id:1468">
<number name="ID" id="1609" type="integer">
<fixedvalues>
<fixedvalue name="APP6" value="0xE6"/>
</fixedvalues>
</number>
</structure>
<structure name="App7" id="1411" extends="id:1468">
<number name="ID" id="1613" type="integer">
<fixedvalues>
<fixedvalue name="APP7" value="0xE7"/>
</fixedvalues>
</number>
</structure>
<structure name="App8" id="1413" extends="id:1468">
<number name="ID" id="1617" type="integer">
<fixedvalues>
<fixedvalue name="APP8" value="0xE8"/>
</fixedvalues>
</number>
</structure>
<structure name="App9" id="1415" extends="id:1468">
<number name="ID" id="1621" type="integer">
<fixedvalues>
<fixedvalue name="APP9" value="0xE9"/>
</fixedvalues>
</number>
</structure>
<structure name="App10" id="1417" extends="id:1468">
<number name="ID" id="1625" type="integer">
<fixedvalues>
<fixedvalue name="APP10" value="0xEA"/>
</fixedvalues>
</number>
</structure>
<structure name="App11" id="1419" extends="id:1468">
<number name="ID" id="1629" type="integer">
<fixedvalues>
<fixedvalue name="APP11" value="0xEB"/>
</fixedvalues>
</number>
</structure>
<structure name="App12" id="1421" extends="id:1468">
<description>Photoshop uses the JPEG APP12 "Ducky" segment to store some information in "Save for Web" images</description>
<number name="ID" id="1633" type="integer">
<fixedvalues>
<fixedvalue name="APP12" value="0xEC"/>
</fixedvalues>
</number>
<string name="Ducky" id="1635" type="fixed-length" length="5">
<fixedvalues>
<fixedvalue name="ID" value="Ducky"/>
</fixedvalues>
</string>
<structure name="Tags" id="1636" repeatmax="-1" order="variable">
<structure name="Quality" id="1637" repeatmin="0">
<number name="Tag" mustmatch="yes" id="1638" type="integer" length="2">
<fixedvalues>
<fixedvalue name="Quality" value="1"/>
</fixedvalues>
</number>
<number name="Length" id="1639" type="integer" length="2"/>
<number name="Value" id="1640" type="integer" length="Length"/>
</structure>
<structure name="Comment" id="1642" repeatmin="0">
<number name="Tag" mustmatch="yes" id="1643" type="integer" length="2">
<fixedvalues>
<fixedvalue name="Comment" value="2"/>
</fixedvalues>
</number>
<number name="Length" id="1644" type="integer" length="2"/>
<string name="Comment" id="1645" type="fixed-length" length="Length"/>
</structure>
<structure name="Copyright" id="1647" length="0" alignment="0" repeatmin="0">
<number name="Tag" mustmatch="yes" id="1648" type="integer" length="2">
<fixedvalues>
<fixedvalue name="Copyright" value="3"/>
</fixedvalues>
</number>
<number name="Length" id="1649" type="integer" length="2"/>
<string name="Comment" id="1650" type="fixed-length" length="remaining"/>
</structure>
<structure name="End" id="1652" repeatmin="0">
<number name="Tag" mustmatch="yes" id="1653" type="integer" length="2">
<fixedvalues>
<fixedvalue name="End" value="0"/>
</fixedvalues>
</number>
</structure>
</structure>
</structure>
<structure name="App13_Adobe" id="1423" extends="id:1468">
<number name="ID" id="1658" type="integer">
<fixedvalues>
<fixedvalue name="APP13" value="0xED"/>
</fixedvalues>
</number>
<string name="Adobe" mustmatch="yes" id="1660" type="fixed-length" length="9">
<fixedvalues>
<fixedvalue name="Adobe" value="Adobe_CM"/>
</fixedvalues>
</string>
</structure>
<structure name="App13_Photoshop" id="1425" extends="id:1468">
<number name="ID" id="1663" type="integer">
<fixedvalues>
<fixedvalue name="APP13" value="0xED"/>
</fixedvalues>
</number>
<string name="Photoshop" mustmatch="yes" id="1665" type="fixed-length" length="14">
<fixedvalues>
<fixedvalue name="Photoshop" value="Photoshop 3.0"/>
</fixedvalues>
</string>
<structure name="Blocks" id="1666" repeatmin="0" repeatmax="-1" order="variable">
<structref name="App13Block1000" id="1668" repeatmin="0" structure="id:1667"/>
<structref name="App13Block1001" id="1670" repeatmin="0" structure="id:1669"/>
<structref name="App13Block1003" id="1672" repeatmin="0" structure="id:1671"/>
<structref name="App13Block1005" id="1674" repeatmin="0" structure="id:1673"/>
<structref name="App13Block1006" id="1676" repeatmin="0" structure="id:1675"/>
<structref name="App13Block1007" id="1678" repeatmin="0" structure="id:1677"/>
<structref name="App13Block1008" id="1680" repeatmin="0" structure="id:1679"/>
<structref name="App13Block1009" id="1682" repeatmin="0" structure="id:1681"/>
<structref name="App13Block1010" id="1684" repeatmin="0" structure="id:1683"/>
<structref name="App13Block1011" id="1686" repeatmin="0" structure="id:1685"/>
<structref name="App13Block1012" id="1688" repeatmin="0" structure="id:1687"/>
<structref name="App13Block1013" id="1690" repeatmin="0" structure="id:1689"/>
<structref name="App13Block1014" id="1692" repeatmin="0" structure="id:1691"/>
<structref name="App13Block1015" id="1694" repeatmin="0" structure="id:1693"/>
<structref name="App13Block1016" id="1696" repeatmin="0" structure="id:1695"/>
<structref name="App13Block1017" id="1698" repeatmin="0" structure="id:1697"/>
<structref name="App13Block1018" id="1700" repeatmin="0" structure="id:1699"/>
<structref name="App13Block1019" id="1702" repeatmin="0" structure="id:1701"/>
<structref name="App13Block1020" id="1704" repeatmin="0" structure="id:1703"/>
<structref name="App13Block1021" id="1706" repeatmin="0" structure="id:1705"/>
<structref name="App13Block1022" id="1708" repeatmin="0" structure="id:1707"/>
<structref name="App13Block1023" id="1710" repeatmin="0" structure="id:1709"/>
<structref name="App13Block1024" id="1712" repeatmin="0" structure="id:1711"/>
<structref name="App13Block1025" id="1714" repeatmin="0" structure="id:1713"/>
<structref name="App13Block1026" id="1716" repeatmin="0" structure="id:1715"/>
<structref name="App13Block1027" id="1718" repeatmin="0" structure="id:1717"/>
<structref name="App13Block1028" id="1720" repeatmin="0" structure="id:1719"/>
<structref name="App13Block1029" id="1722" repeatmin="0" structure="id:1721"/>
<structref name="App13Block1030" id="1724" repeatmin="0" structure="id:1723"/>
<structref name="App13Block1032" id="1726" repeatmin="0" structure="id:1725"/>
<structref name="App13Block1033" id="1728" repeatmin="0" structure="id:1727"/>
<structref name="App13Block1034" id="1730" repeatmin="0" structure="id:1729"/>
<structref name="App13Block1035" id="1732" repeatmin="0" structure="id:1731"/>
<structref name="App13Block1036" id="1734" repeatmin="0" structure="id:1733"/>
<structref name="App13Block1037" id="1736" repeatmin="0" structure="id:1735"/>
<structref name="App13Block1038" id="1738" repeatmin="0" structure="id:1737"/>
<structref name="App13Block1039" id="1740" repeatmin="0" structure="id:1739"/>
<structref name="App13Block1040" id="1742" repeatmin="0" structure="id:1741"/>
<structref name="App13Block1041" id="1744" repeatmin="0" structure="id:1743"/>
<structref name="App13Block1042" id="1746" repeatmin="0" structure="id:1745"/>
<structref name="App13Block1043" id="1748" repeatmin="0" structure="id:1747"/>
<structref name="App13Block1044" id="1750" repeatmin="0" structure="id:1749"/>
<structref name="App13Block1045" id="1752" repeatmin="0" structure="id:1751"/>
<structref name="App13Block1046" id="1754" repeatmin="0" structure="id:1753"/>
<structref name="App13Block1047" id="1756" repeatmin="0" structure="id:1755"/>
<structref name="App13Block1049" id="1758" repeatmin="0" structure="id:1757"/>
<structref name="App13Block1050" id="1760" repeatmin="0" structure="id:1759"/>
<structref name="App13Block1051" id="1762" repeatmin="0" structure="id:1761"/>
<structref name="App13Block1052" id="1764" repeatmin="0" structure="id:1763"/>
<structref name="App13Block1053" id="1766" repeatmin="0" structure="id:1765"/>
<structref name="App13Block1054" id="1768" repeatmin="0" structure="id:1767"/>
<structref name="App13Block1057" id="1770" repeatmin="0" structure="id:1769"/>
<structref name="App13Block1058" id="1772" repeatmin="0" structure="id:1771"/>
<structref name="App13Block1059" id="1774" repeatmin="0" structure="id:1773"/>
<structref name="App13Block1060" id="1776" repeatmin="0" structure="id:1775"/>
<structref name="App13Block1061" id="1778" repeatmin="0" structure="id:1777"/>
<structref name="App13Block1062" id="1780" repeatmin="0" structure="id:1779"/>
<structref name="App13Block1064" id="1782" repeatmin="0" structure="id:1781"/>
<structref name="App13Block1065" id="1784" repeatmin="0" structure="id:1783"/>
<structref name="App13Block1066" id="1786" repeatmin="0" structure="id:1785"/>
<structref name="App13Block1067" id="1788" repeatmin="0" structure="id:1787"/>
<structref name="App13Block1069" id="1790" repeatmin="0" structure="id:1789"/>
<structref name="App13Block1070" id="1792" repeatmin="0" structure="id:1791"/>
<structref name="App13Block1071" id="1794" repeatmin="0" structure="id:1793"/>
<structref name="App13Block1072" id="1796" repeatmin="0" structure="id:1795"/>
<structref name="App13Block1073" id="1798" repeatmin="0" structure="id:1797"/>
<structref name="App13Block1074" id="1800" repeatmin="0" structure="id:1799"/>
<structref name="App13Block1075" id="1802" repeatmin="0" structure="id:1801"/>
<structref name="App13Block1076" id="1804" repeatmin="0" structure="id:1803"/>
<structref name="App13Block1077" id="1806" repeatmin="0" structure="id:1805"/>
<structref name="App13Block1078" id="1808" repeatmin="0" structure="id:1807"/>
<structref name="App13Block1080" id="1810" repeatmin="0" structure="id:1809"/>
<structref name="App13Block1082" id="1812" repeatmin="0" structure="id:1811"/>
<structref name="App13Block1083" id="1814" repeatmin="0" structure="id:1813"/>
<structref name="App13Block1084" id="1816" repeatmin="0" structure="id:1815"/>
<structref name="App13Block1085" id="1818" repeatmin="0" structure="id:1817"/>
<structref name="App13Block1086" id="1820" repeatmin="0" structure="id:1819"/>
<structref name="App13Block1087" id="1822" repeatmin="0" structure="id:1821"/>
<structref name="App13Block1088" id="1824" repeatmin="0" structure="id:1823"/>
<structref name="App13Block2xxx-2997" id="1826" repeatmin="0" structure="id:1825"/>
<structref name="App13Block2999" id="1828" repeatmin="0" structure="id:1827"/>
<structref name="App13Block3000" id="1830" repeatmin="0" structure="id:1829"/>
<structref name="App13Block4xxx" id="1832" repeatmin="0" structure="id:1831"/>
<structref name="App13Block7000" id="1834" repeatmin="0" structure="id:1833"/>
<structref name="App13Block7001" id="1836" repeatmin="0" structure="id:1835"/>
<structref name="App13Block8000" id="1838" repeatmin="0" structure="id:1837"/>
<structref name="App13Block10000" id="1840" repeatmin="0" structure="id:1839"/>
<structref name="App13Block" id="1842" repeatmin="0" structure="id:1841"/>
</structure>
</structure>
<structure name="App14" id="1427" extends="id:1468">
<number name="ID" id="1846" type="integer">
<fixedvalues>
<fixedvalue name="EE" value="0xEE"/>
</fixedvalues>
</number>
<string name="identifier" id="1848" type="fixed-length" length="5">
<description>= X'4A', X'46', X'49', X'46', X'00' This zero terminated string (“JFIF”) uniquely identifies this APP0 marker. This string shall have zero parity (bit 7=0).</description>
<fixedvalues>
<fixedvalue name="Adobe" value="Adobe"/>
</fixedvalues>
</string>
<number name="major version" id="1849" type="integer" length="1"/>
<number name="minor version" id="1850" type="integer" length="1"/>
<number name="flag0" id="1851" type="integer" length="2"/>
<number name="flag1" id="1852" type="integer" length="2"/>
<number name="color_transform_code" id="1853" type="integer" length="1"/>
</structure>
<structure name="App15" id="1429" extends="id:1468">
<number name="ID" id="1856" type="integer">
<fixedvalues>
<fixedvalue name="APP15" value="0xEF"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG" id="1431" extends="id:1468">
<number name="ID" id="1860" type="integer">
<fixedvalues>
<fixedvalue name="JPG" value="0xC8"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG0" id="1433" extends="id:1468">
<number name="ID" id="1864" type="integer">
<fixedvalues>
<fixedvalue name="JPG0" value="0xF0"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG1" id="1435" extends="id:1468">
<number name="ID" id="1868" type="integer">
<fixedvalues>
<fixedvalue name="JPG1" value="0xF1"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG2" id="1437" extends="id:1468">
<number name="ID" id="1872" type="integer">
<fixedvalues>
<fixedvalue name="JPG2" value="0xF2"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG3" id="1439" extends="id:1468">
<number name="ID" id="1876" type="integer">
<fixedvalues>
<fixedvalue name="JPG3" value="0xF3"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG4" id="1441" extends="id:1468">
<number name="ID" id="1880" type="integer">
<fixedvalues>
<fixedvalue name="JPG4" value="0xF4"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG5" id="1443" extends="id:1468">
<number name="ID" id="1884" type="integer">
<fixedvalues>
<fixedvalue name="JPG5" value="0xF5"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG6" id="1445" extends="id:1468">
<number name="ID" id="1888" type="integer">
<fixedvalues>
<fixedvalue name="JPG6" value="0xF6"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG7" id="1447" extends="id:1468">
<number name="ID" id="1892" type="integer">
<fixedvalues>
<fixedvalue name="JPG7" value="0xF7"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG8" id="1449" extends="id:1468">
<number name="ID" id="1896" type="integer">
<fixedvalues>
<fixedvalue name="JPG8" value="0xF8"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG9" id="1451" extends="id:1468">
<number name="ID" id="1900" type="integer">
<fixedvalues>
<fixedvalue name="JPG9" value="0xF9"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG10" id="1453" extends="id:1468">
<number name="ID" id="1904" type="integer">
<fixedvalues>
<fixedvalue name="JPG10" value="0xFA"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG11" id="1455" extends="id:1468">
<number name="ID" id="1908" type="integer">
<fixedvalues>
<fixedvalue name="JPG11" value="0xFB"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG12" id="1457" extends="id:1468">
<number name="ID" id="1912" type="integer">
<fixedvalues>
<fixedvalue name="JPG12" value="0xFC"/>
</fixedvalues>
</number>
</structure>
<structure name="JPG13" id="1459" extends="id:1468">
<number name="ID" id="1916" type="integer">
<fixedvalues>
<fixedvalue name="JPG13" value="0xFD"/>
</fixedvalues>
</number>
</structure>
<structure name="QuantTable8" id="1539" encoding="ISO_8859-1:1987" endian="big" signed="no">
<number name="Pq" mustmatch="yes" id="1919" type="integer" length="4" lengthunit="bit">
<description>Quantization table element precision – Specifies the precision of the Qk values. Value 0 indicates 8-bit Qk values; value 1 indicates 16-bit Qk values. Pq shall be zero for 8 bit sample precision P</description>
<fixedvalues>
<fixedvalue name="8-bit precision" value="0"/>
</fixedvalues>
</number>
<number name="Tq" id="1920" type="integer" length="4" lengthunit="bit">
<description>Quantization table destination identifier – Specifies one of four possible destinations at the decoder into which the quantization table shall be installed.</description>
</number>
<number name="Qk" id="1921" repeatmax="64" type="integer" length="1">
<description>Quantization table element – Specifies the kth element out of 64 elements, where k is the index in the zig- zag ordering of the DCT coefficients. The quantization elements shall be specified in zig-zag scan order.</description>
</number>
</structure>
<structure name="QuantTable16" id="1541" extends="id:1539">
<number name="Pq" id="1923" type="integer">
<description>Quantization table element precision – Specifies the precision of the Qk values. Value 0 indicates 8-bit Qk values; value 1 indicates 16-bit Qk values. Pq shall be zero for 8 bit sample precision P</description>
<fixedvalues>
<fixedvalue name="16-bit precision" value="1"/>
</fixedvalues>
</number>
<number name="Qk" id="1925" repeatmax="64" type="integer" length="2">
<description>Quantization table element – Specifies the kth element out of 64 elements, where k is the index in the zig- zag ordering of the DCT coefficients. The quantization elements shall be specified in zig-zag scan order.</description>
</number>
</structure>
<structure name="ImageData" id="1375" encoding="ISO_8859-1:1987" endian="big" signed="no">
<structref name="SOS" id="1927" structure="id:1490"/>
<scriptelement name="ScanImage" id="1928">
<script name="unnamed" type="Generic">
<source language="Python">
endFound = False
theOffset = currentOffset
byteView = currentMapper.getCurrentByteView()
results = currentMapper.getCurrentResults()
grammar = currentMapper.getCurrentGrammar()
while not endFound:
theByte = byteView.readByte(theOffset);
if (theByte == 0xff):
theSecondByte = byteView.readByte(theOffset + 1);
if ((theSecondByte > 0) and (theSecondByte < 0xFF)):
endFound = True
theValue = Value();
theValue.setString( "EOF");
# print("End found at offset " + str(theOffset))
struct = grammar.getStructureByName("ImageBytes")
element = struct.getElementByName("ImageBytes")
length = theOffset - currentOffset
currentMapper.mapElementWithSize(element, length);
theOffset = theOffset + 1;
</source>
</script>
</scriptelement>
</structure>
<structure name="RestartImageData" id="1377" encoding="ISO_8859-1:1987" endian="big" signed="no">
<structref name="RST" id="1930" structure="id:1552"/>
<scriptelement name="ScanImage" id="1931">
<script name="unnamed" type="Generic">
<source language="Python">
endFound = False
theOffset = currentOffset
byteView = currentMapper.getCurrentByteView()
results = currentMapper.getCurrentResults()
grammar = currentMapper.getCurrentGrammar()
while not endFound:
theByte = byteView.readByte(theOffset);
if (theByte == 0xff):
theSecondByte = byteView.readByte(theOffset + 1);
if ((theSecondByte > 0) and (theSecondByte < 0xFF)):
endFound = True
theValue = Value();
theValue.setString( "EOF");
# print("End found at offset " + str(theOffset))
struct = grammar.getStructureByName("ImageBytes")
element = struct.getElementByName("ImageBytes")
length = theOffset - currentOffset
currentMapper.mapElementWithSize(element, length);
theOffset = theOffset + 1;
</source>
</script>
</scriptelement>
</structure>
<structure name="ImageBytes" id="1933" encoding="ISO_8859-1:1987" endian="big" signed="no">
<binary name="ImageBytes" id="1934" length="remaining"/>
</structure>
<structure name="App13Block" id="1841" alignment="0" encoding="ISO_8859-1:1987" endian="big" signed="no">
<string name="Type" mustmatch="yes" id="1936" type="fixed-length" length="4">
<fixedvalues>
<fixedvalue name="8BIM" value="8BIM"/>
</fixedvalues>
</string>
<number name="Identifier" mustmatch="yes" id="1937" type="integer" length="2"/>
<structref name="PaddedName" id="1939" structure="id:1938"/>
<number name="DataSize" id="1940" type="integer" length="4"/>
<structure name="Data" id="1941" length="DataSize"/>
<scriptelement name="ConditionalPadByte" id="1943">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()
dataResult = results.getResultByName("DataSize")
value = dataResult.getValue()
length = value.getUnsigned()
print(length)
if length % 2 == 1:
# add padding element with one byte
grammar = currentMapper.getCurrentGrammar()
structure = grammar.getStructureByName("Elements")
element = structure.getElementByName("PaddingByte")
currentMapper.mapElementWithSize(element, 1)
</source>
</script>
</scriptelement>
</structure>
<structure name="App13Block1000" id="1667" extends="id:1841">
<description>Obsolete--Photoshop 2.0 only</description>
<number name="Identifier" id="1946" type="integer">
<fixedvalues>
<fixedvalue name="Obsolete" value="1000"/>
</fixedvalues>
</number>
<structure name="Data" id="1947">
<number name="ChannelCount" id="1950" type="integer" length="2"/>
<number name="Rows" id="1951" type="integer" length="2"/>
<number name="Columns" id="1952" type="integer" length="2"/>
<number name="Depth" id="1953" type="integer" length="2"/>
<number name="Mode" id="1954" type="integer" length="2"/>
</structure>
<scriptelement name="ConditionalPadByte" id="1956">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()
dataResult = results.getResultByName("DataSize")
value = dataResult.getValue()
length = value.getUnsigned()
print(length)
if length % 2 == 1:
# add padding element with one byte
grammar = currentMapper.getCurrentGrammar()
structure = grammar.getStructureByName("Elements")
element = structure.getElementByName("PaddingByte")
currentMapper.mapElementWithSize(element, 1)
</source>
</script>
</scriptelement>
</structure>
<structure name="App13Block1001" id="1669" extends="id:1841" encoding="ISO_8859-1:1987" endian="big" signed="no">
<description>Macintosh print manager print info record</description>
<number name="Identifier" id="1959" type="integer">
<fixedvalues>
<fixedvalue name="Mac print info" value="1001"/>
</fixedvalues>
</number>
<scriptelement name="ConditionalPadByte" id="1964">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()
dataResult = results.getResultByName("DataSize")
value = dataResult.getValue()
length = value.getUnsigned()
print(length)
if length % 2 == 1:
# add padding element with one byte
grammar = currentMapper.getCurrentGrammar()
structure = grammar.getStructureByName("Elements")
element = structure.getElementByName("PaddingByte")
currentMapper.mapElementWithSize(element, 1)
</source>
</script>
</scriptelement>
</structure>
<structure name="App13Block1003" id="1671" extends="id:1841">
<description>(Obsolete--Photoshop 2.0 only ) Indexed color table</description>
<number name="Identifier" id="1967" type="integer">
<fixedvalues>
<fixedvalue name="Indexed color table" value="1003"/>
</fixedvalues>
</number>
<scriptelement name="ConditionalPadByte" id="1972">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()
dataResult = results.getResultByName("DataSize")
value = dataResult.getValue()
length = value.getUnsigned()
print(length)
if length % 2 == 1:
# add padding element with one byte
grammar = currentMapper.getCurrentGrammar()
structure = grammar.getStructureByName("Elements")
element = structure.getElementByName("PaddingByte")
currentMapper.mapElementWithSize(element, 1)
</source>
</script>
</scriptelement>
</structure>
<structure name="App13Block1005" id="1673" extends="id:1841">
<description>ResolutionInfo structure. See Appendix A in Photoshop API Guide.pdf</description>
<number name="Identifier" id="1975" type="integer">
<fixedvalues>
<fixedvalue name="ResolutionInfo" value="1005"/>
</fixedvalues>
</number>
<scriptelement name="ConditionalPadByte" id="1980">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()
dataResult = results.getResultByName("DataSize")
value = dataResult.getValue()
length = value.getUnsigned()
print(length)
if length % 2 == 1:
# add padding element with one byte
grammar = currentMapper.getCurrentGrammar()
structure = grammar.getStructureByName("Elements")
element = structure.getElementByName("PaddingByte")
currentMapper.mapElementWithSize(element, 1)
</source>
</script>
</scriptelement>
</structure>
<structure name="App13Block1006" id="1675" extends="id:1841">
<description>Names of the alpha channels as a series of Pascal strings</description>
<number name="Identifier" id="1983" type="integer">
<fixedvalues>
<fixedvalue name="1006" value="1006"/>
</fixedvalues>
</number>
<scriptelement name="ConditionalPadByte" id="1988">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()
dataResult = results.getResultByName("DataSize")
value = dataResult.getValue()
length = value.getUnsigned()
print(length)
if length % 2 == 1:
# add padding element with one byte
grammar = currentMapper.getCurrentGrammar()
structure = grammar.getStructureByName("Elements")
element = structure.getElementByName("PaddingByte")
currentMapper.mapElementWithSize(element, 1)
</source>
</script>
</scriptelement>
</structure>
<structure name="App13Block1007" id="1677" extends="id:1841">
<description>(Obsolete) See ID 1077DisplayInfo structure. See Appendix A in Photoshop API Guide.pdf</description>
<number name="Identifier" id="1991" type="integer">
<fixedvalues>
<fixedvalue name="1007" value="1007"/>
</fixedvalues>
</number>
<scriptelement name="ConditionalPadByte" id="1996">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()
dataResult = results.getResultByName("DataSize")
value = dataResult.getValue()
length = value.getUnsigned()
print(length)
if length % 2 == 1:
# add padding element with one byte
grammar = currentMapper.getCurrentGrammar()
structure = grammar.getStructureByName("Elements")
element = structure.getElementByName("PaddingByte")
currentMapper.mapElementWithSize(element, 1)
</source>
</script>
</scriptelement>
</structure>
<structure name="App13Block1008" id="1679" extends="id:1841">
<description>The caption as a Pascal string</description>
<number name="Identifier" id="1999" type="integer">
<fixedvalues>
<fixedvalue name="1008" value="1008"/>
</fixedvalues>
</number>
<scriptelement name="ConditionalPadByte" id="2004">
<script name="unnamed" type="Generic">
<source language="Python">results = currentMapper.getCurrentResults()