mirror of
https://github.com/moparisthebest/SickRage
synced 2024-11-16 06:15:09 -05:00
247 lines
8.9 KiB
Python
247 lines
8.9 KiB
Python
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"""
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Apple Quicktime Movie (file extension ".mov") parser.
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Documents:
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- Parsing and Writing QuickTime Files in Java (by Chris Adamson, 02/19/2003)
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http://www.onjava.com/pub/a/onjava/2003/02/19/qt_file_format.html
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- QuickTime File Format (official technical reference)
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http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
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- Apple QuickTime:
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http://wiki.multimedia.cx/index.php?title=Apple_QuickTime
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- File type (ftyp):
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http://www.ftyps.com/
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Author: Victor Stinner
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Creation: 2 august 2006
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"""
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from lib.hachoir_parser import Parser
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from lib.hachoir_core.field import (ParserError, FieldSet, MissingField,
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UInt8, Int16, UInt16, UInt32, TimestampMac32,
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String, PascalString8, CString,
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RawBytes, PaddingBytes)
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from lib.hachoir_core.endian import BIG_ENDIAN
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from lib.hachoir_core.text_handler import textHandler, hexadecimal
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class QTFloat32(FieldSet):
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static_size = 32
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def createFields(self):
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yield Int16(self, "int_part")
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yield UInt16(self, "float_part")
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def createValue(self):
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return self["int_part"].value + float(self["float_part"].value) / 65535
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def createDescription(self):
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return str(self.value)
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class AtomList(FieldSet):
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def createFields(self):
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while not self.eof:
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yield Atom(self, "atom[]")
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class TrackHeader(FieldSet):
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def createFields(self):
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yield textHandler(UInt8(self, "version"), hexadecimal)
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# TODO: sum of :
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# TrackEnabled = 1;
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# TrackInMovie = 2;
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# TrackInPreview = 4;
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# TrackInPoster = 8
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yield RawBytes(self, "flags", 3)
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yield TimestampMac32(self, "creation_date")
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yield TimestampMac32(self, "lastmod_date")
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yield UInt32(self, "track_id")
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yield PaddingBytes(self, "reserved[]", 8)
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yield UInt32(self, "duration")
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yield PaddingBytes(self, "reserved[]", 8)
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yield Int16(self, "video_layer", "Middle is 0, negative in front")
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yield PaddingBytes(self, "other", 2)
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yield QTFloat32(self, "geom_a", "Width scale")
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yield QTFloat32(self, "geom_b", "Width rotate")
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yield QTFloat32(self, "geom_u", "Width angle")
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yield QTFloat32(self, "geom_c", "Height rotate")
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yield QTFloat32(self, "geom_d", "Height scale")
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yield QTFloat32(self, "geom_v", "Height angle")
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yield QTFloat32(self, "geom_x", "Position X")
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yield QTFloat32(self, "geom_y", "Position Y")
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yield QTFloat32(self, "geom_w", "Divider scale")
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yield QTFloat32(self, "frame_size_width")
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yield QTFloat32(self, "frame_size_height")
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class HDLR(FieldSet):
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def createFields(self):
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yield textHandler(UInt8(self, "version"), hexadecimal)
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yield RawBytes(self, "flags", 3)
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yield String(self, "subtype", 8)
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yield String(self, "manufacturer", 4)
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yield UInt32(self, "res_flags")
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yield UInt32(self, "res_flags_mask")
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if self.root.is_mpeg4:
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yield CString(self, "name")
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else:
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yield PascalString8(self, "name")
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class MediaHeader(FieldSet):
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def createFields(self):
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yield textHandler(UInt8(self, "version"), hexadecimal)
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yield RawBytes(self, "flags", 3)
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yield TimestampMac32(self, "creation_date")
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yield TimestampMac32(self, "lastmod_date")
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yield UInt32(self, "time_scale")
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yield UInt32(self, "duration")
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yield UInt16(self, "mac_lang")
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yield Int16(self, "quality")
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class ELST(FieldSet):
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def createFields(self):
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yield textHandler(UInt8(self, "version"), hexadecimal)
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yield RawBytes(self, "flags", 3)
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yield UInt32(self, "nb_edits")
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yield UInt32(self, "length")
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yield UInt32(self, "start")
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yield QTFloat32(self, "playback_speed")
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class Load(FieldSet):
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def createFields(self):
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yield UInt32(self, "start")
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yield UInt32(self, "length")
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yield UInt32(self, "flags") # PreloadAlways = 1 or TrackEnabledPreload = 2
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yield UInt32(self, "hints") # KeepInBuffer = 0x00000004; HighQuality = 0x00000100; SingleFieldVideo = 0x00100000
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class MovieHeader(FieldSet):
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def createFields(self):
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yield textHandler(UInt8(self, "version"), hexadecimal)
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yield RawBytes(self, "flags", 3)
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yield TimestampMac32(self, "creation_date")
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yield TimestampMac32(self, "lastmod_date")
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yield UInt32(self, "time_scale")
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yield UInt32(self, "duration")
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yield QTFloat32(self, "play_speed")
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yield UInt16(self, "volume")
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yield PaddingBytes(self, "reserved[]", 10)
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yield QTFloat32(self, "geom_a", "Width scale")
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yield QTFloat32(self, "geom_b", "Width rotate")
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yield QTFloat32(self, "geom_u", "Width angle")
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yield QTFloat32(self, "geom_c", "Height rotate")
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yield QTFloat32(self, "geom_d", "Height scale")
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yield QTFloat32(self, "geom_v", "Height angle")
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yield QTFloat32(self, "geom_x", "Position X")
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yield QTFloat32(self, "geom_y", "Position Y")
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yield QTFloat32(self, "geom_w", "Divider scale")
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yield UInt32(self, "preview_start")
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yield UInt32(self, "preview_length")
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yield UInt32(self, "still_poster")
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yield UInt32(self, "sel_start")
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yield UInt32(self, "sel_length")
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yield UInt32(self, "current_time")
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yield UInt32(self, "next_track")
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class FileType(FieldSet):
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def createFields(self):
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yield String(self, "brand", 4, "Major brand")
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yield UInt32(self, "version", "Version")
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while not self.eof:
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yield String(self, "compat_brand[]", 4, "Compatible brand")
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class Atom(FieldSet):
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tag_info = {
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# TODO: Use dictionnary of dictionnary, like Matroska parser does
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# "elst" is a child of "edts", but not of "moov" for example
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"moov": (AtomList, "movie", "Movie"),
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"trak": (AtomList, "track", "Track"),
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"mdia": (AtomList, "media", "Media"),
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"edts": (AtomList, "edts", ""),
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"minf": (AtomList, "minf", ""),
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"stbl": (AtomList, "stbl", ""),
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"dinf": (AtomList, "dinf", ""),
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"elst": (ELST, "edts", ""),
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"tkhd": (TrackHeader, "track_hdr", "Track header"),
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"hdlr": (HDLR, "hdlr", ""),
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"mdhd": (MediaHeader, "media_hdr", "Media header"),
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"load": (Load, "load", ""),
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"mvhd": (MovieHeader, "movie_hdr", "Movie header"),
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"ftyp": (FileType, "file_type", "File type"),
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}
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tag_handler = [ item[0] for item in tag_info ]
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tag_desc = [ item[1] for item in tag_info ]
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def createFields(self):
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yield UInt32(self, "size")
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yield String(self, "tag", 4)
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size = self["size"].value
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if size == 1:
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raise ParserError("Extended size is not supported!")
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#yield UInt64(self, "size64")
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size = self["size64"].value
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elif size == 0:
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#size = (self.root.size - self.root.current_size - self.current_size) / 8
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if self._size is None:
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size = (self.parent.size - self.current_size) / 8 - 8
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else:
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size = (self.size - self.current_size) / 8
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else:
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size = size - 8
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if 0 < size:
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tag = self["tag"].value
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if tag in self.tag_info:
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handler, name, desc = self.tag_info[tag]
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yield handler(self, name, desc, size=size*8)
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else:
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yield RawBytes(self, "data", size)
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def createDescription(self):
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return "Atom: %s" % self["tag"].value
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class MovFile(Parser):
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PARSER_TAGS = {
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"id": "mov",
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"category": "video",
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"file_ext": ("mov", "qt", "mp4", "m4v", "m4a", "m4p", "m4b"),
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"mime": (u"video/quicktime", u'video/mp4'),
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"min_size": 8*8,
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"magic": (("moov", 4*8),),
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"description": "Apple QuickTime movie"
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}
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BRANDS = {
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# File type brand => MIME type
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'mp41': u'video/mp4',
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'mp42': u'video/mp4',
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}
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endian = BIG_ENDIAN
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def __init__(self, *args, **kw):
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Parser.__init__(self, *args, **kw)
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self.is_mpeg4 = False
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def validate(self):
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# TODO: Write better code, erk!
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size = self.stream.readBits(0, 32, self.endian)
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if size < 8:
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return "Invalid first atom size"
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tag = self.stream.readBytes(4*8, 4)
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return tag in ("ftyp", "moov", "free")
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def createFields(self):
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while not self.eof:
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yield Atom(self, "atom[]")
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def createMimeType(self):
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first = self[0]
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try:
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# Read brands in the file type
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if first['tag'].value != "ftyp":
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return None
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file_type = first["file_type"]
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brand = file_type["brand"].value
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if brand in self.BRANDS:
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return self.BRANDS[brand]
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for field in file_type.array("compat_brand"):
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brand = field.value
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if brand in self.BRANDS:
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return self.BRANDS[brand]
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except MissingField:
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pass
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return None
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