Remove submodule, just put Dependencies in ./libs

2011-02-28 15:25:42 +01:00
parent 2fb578d4de
commit 6888798ef6
541 changed files with 173394 additions and 4 deletions
@@ -0,0 +1,113 @@
+"""
+IPTC metadata parser (can be found in a JPEG picture for example)
+
+Sources:
+- Image-MetaData Perl module:
+  http://www.annocpan.org/~BETTELLI/Image-MetaData-JPEG-0.15/...
+  ...lib/Image/MetaData/JPEG/TagLists.pod
+- IPTC tag name and description:
+  http://peccatte.karefil.com/software/IPTCTableau.pdf
+
+Author: Victor Stinner
+"""
+
+from hachoir_core.field import (FieldSet, ParserError,
+    UInt8, UInt16, String, RawBytes, NullBytes)
+from hachoir_core.text_handler import textHandler, hexadecimal
+
+def IPTC_String(parent, name, desc=None):
+    # Charset may be utf-8, ISO-8859-1, or ...
+    return String(parent, name, parent["size"].value, desc,
+        strip=" ")
+
+dataset1 = {
+}
+dataset2 = {
+      0: ("record_version", "Record version (2 for JPEG)", UInt16),
+      5: ("obj_name", "Object name", None),
+      7: ("edit_stat", "Edit status", None),
+     10: ("urgency", "Urgency", UInt8),
+     15: ("category[]", "Category", None),
+     22: ("fixture", "Fixture identifier", IPTC_String),
+     25: ("keyword[]", "Keywords", IPTC_String),
+     30: ("release_date", "Release date", IPTC_String),
+     35: ("release_time", "Release time", IPTC_String),
+     40: ("instruction", "Special instructions", IPTC_String),
+     55: ("date_created", "Date created", IPTC_String),
+     60: ("time_created", "Time created (ISO 8601)", IPTC_String),
+     65: ("originating_prog", "Originating program", IPTC_String),
+     70: ("prog_ver", "Program version", IPTC_String),
+     80: ("author", "By-line (Author)", IPTC_String),
+     85: ("author_job", "By-line (Author precision)", IPTC_String),
+     90: ("city", "City", IPTC_String),
+     95: ("state", "Province / State", IPTC_String),
+    100: ("country_code", "Country / Primary location code", IPTC_String),
+    101: ("country_name", "Country / Primary location name", IPTC_String),
+    103: ("trans_ref", "Original transmission reference", IPTC_String),
+    105: ("headline", "Headline", IPTC_String),
+    110: ("credit", "Credit", IPTC_String),
+    115: ("source", "Source", IPTC_String),
+    116: ("copyright", "Copyright notice", IPTC_String),
+    120: ("caption", "Caption/Abstract", IPTC_String),
+    122: ("writer", "Writer/editor", IPTC_String),
+    231: ("history[]", "Document history (timestamp)", IPTC_String)
+}
+datasets = {1: dataset1, 2: dataset2}
+
+class IPTC_Size(FieldSet):
+    def __init__(self, *args, **kw):
+        FieldSet.__init__(self, *args, **kw)
+        value = 0
+        for field in self:
+            value <<= 15
+            value  += (field.value & 0x7fff)
+        self.createValue = lambda: value
+
+    def createFields(self):
+        while True:
+            field = UInt16(self, "value[]")
+            yield field
+            if field.value < 0x8000:
+                break
+
+class IPTC_Chunk(FieldSet):
+    def __init__(self, *args, **kw):
+        FieldSet.__init__(self, *args, **kw)
+        number = self["dataset_nb"].value
+        self.dataset_info = None
+        if number in datasets:
+            tag = self["tag"].value
+            if tag in datasets[number]:
+                self.dataset_info = datasets[number][tag]
+                self._name = self.dataset_info[0]
+                self._description = self.dataset_info[1]
+        size_chunk = self["size"]
+        self._size = 3*8 + size_chunk.size + size_chunk.value*8
+
+    def createFields(self):
+        yield textHandler(UInt8(self, "signature", "IPTC signature (0x1c)"), hexadecimal)
+        if self["signature"].value != 0x1C:
+            raise ParserError("Wrong IPTC signature")
+        yield textHandler(UInt8(self, "dataset_nb", "Dataset number"), hexadecimal)
+        yield UInt8(self, "tag", "Tag")
+        yield IPTC_Size(self, "size", "Content size")
+
+        size = self["size"].value
+        if 0 < size:
+            if self.dataset_info:
+                cls = self.dataset_info[2]
+            else:
+                cls = None
+            if cls:
+                yield cls(self, "content")
+            else:
+                yield RawBytes(self, "content", size)
+
+class IPTC(FieldSet):
+    def createFields(self):
+        while 5 <= (self._size - self.current_size)/8:
+            yield IPTC_Chunk(self, "chunk[]")
+        size = (self._size - self.current_size) / 8
+        if 0 < size:
+            yield NullBytes(self, "padding", size)
+