def extract(self, icon):
for index, header in enumerate(icon.array("icon_header")):
image = Metadata(self)
# Read size and colors from header
image.width = header["width"].value
image.height = header["height"].value
bpp = header["bpp"].value
nb_colors = header["nb_color"].value
if nb_colors != 0:
image.nb_colors = nb_colors
if bpp == 0 and nb_colors in self.color_to_bpp:
bpp = self.color_to_bpp[nb_colors]
elif bpp == 0:
bpp = 8
image.bits_per_pixel = bpp
image.setHeader(
"Icon #%u (%sx%s)" %
(1 + index, image.get("width", "?"), image.get("height", "?")))
# Read compression from data (if available)
key = "icon_data[%u]/header/codec" % index
if key in icon:
image.compression = icon[key].display
key = "icon_data[%u]/pixels" % index
if key in icon:
computeComprRate(image, icon[key].size)
# Store new image
self.addGroup("image[%u]" % index, image)
def extract(self, icon):
for index, header in enumerate(icon.array("icon_header")):
image = Metadata(self)
# Read size and colors from header
image.width = header["width"].value
image.height = header["height"].value
bpp = header["bpp"].value
nb_colors = header["nb_color"].value
if nb_colors != 0:
image.nb_colors = nb_colors
if bpp == 0 and nb_colors in self.color_to_bpp:
bpp = self.color_to_bpp[nb_colors]
elif bpp == 0:
bpp = 8
image.bits_per_pixel = bpp
image.setHeader(_("Icon #%u (%sx%s)")
% (1 + index,
image.get("width", "?"),
image.get("height", "?")))
# Read compression from data (if available)
key = "icon_data[%u]/header/codec" % index
if key in icon:
image.compression = icon[key].display
key = "icon_data[%u]/pixels" % index
if key in icon:
computeComprRate(image, icon[key].size)
# Store new image
self.addGroup("image[%u]" % index, image)
def processSubtitle(self, track):
sub = Metadata(self)
self.trackCommon(track, sub)
try:
sub.compression = track["CodecID/string"].value
except MissingField:
pass
self.addGroup("subtitle[]", sub, "Subtitle")
def processSubtitle(self, track):
sub = Metadata(self)
self.trackCommon(track, sub)
try:
sub.compression = track["CodecID/string"].value
except MissingField:
pass
self.addGroup("subtitle[]", sub, "Subtitle")
def processVideo(self, track):
video = Metadata(self)
self.trackCommon(track, video)
try:
video.compression = track["CodecID/string"].value
if "Video" in track:
video.width = track["Video/PixelWidth/unsigned"].value
video.height = track["Video/PixelHeight/unsigned"].value
except MissingField:
pass
self.addGroup("video[]", video, "Video stream")
def processVideo(self, track):
video = Metadata(self)
self.trackCommon(track, video)
try:
video.compression = track["CodecID/string"].value
if "Video" in track:
video.width = track["Video/PixelWidth/unsigned"].value
video.height = track["Video/PixelHeight/unsigned"].value
except MissingField:
pass
self.addGroup("video[]", video, "Video stream")
def processAudio(self, track):
audio = Metadata(self)
self.trackCommon(track, audio)
if "Audio" in track:
frequency = self.getDouble(track, "Audio/SamplingFrequency")
if frequency is not None:
audio.sample_rate = frequency
if "Audio/Channels/unsigned" in track:
audio.nb_channel = track["Audio/Channels/unsigned"].value
if "Audio/BitDepth/unsigned" in track:
audio.bits_per_sample = track["Audio/BitDepth/unsigned"].value
if "CodecID/string" in track:
audio.compression = track["CodecID/string"].value
self.addGroup("audio[]", audio, "Audio stream")
def processAudio(self, track):
audio = Metadata(self)
self.trackCommon(track, audio)
if "Audio" in track:
frequency = self.getDouble(track, "Audio/SamplingFrequency")
if frequency is not None:
audio.sample_rate = frequency
if "Audio/Channels/unsigned" in track:
audio.nb_channel = track["Audio/Channels/unsigned"].value
if "Audio/BitDepth/unsigned" in track:
audio.bits_per_sample = track["Audio/BitDepth/unsigned"].value
if "CodecID/string" in track:
audio.compression = track["CodecID/string"].value
self.addGroup("audio[]", audio, "Audio stream")
def processFile(self, field):
meta = Metadata(self)
meta.filename = field["filename"].value
meta.creation_date = field["last_mod"].value
meta.compression = field["compression"].display
if "data_desc" in field:
meta.file_size = field["data_desc/file_uncompressed_size"].value
if field["data_desc/file_compressed_size"].value:
meta.compr_size = field["data_desc/file_compressed_size"].value
else:
meta.file_size = field["uncompressed_size"].value
if field["compressed_size"].value:
meta.compr_size = field["compressed_size"].value
computeCompressionRate(meta)
self.addGroup(field.name, meta, "File \"%s\"" % meta.get('filename'))
def processFile(self, field):
meta = Metadata(self)
meta.filename = field["filename"].value
meta.creation_date = field["last_mod"].value
meta.compression = field["compression"].display
if "data_desc" in field:
meta.file_size = field["data_desc/file_uncompressed_size"].value
if field["data_desc/file_compressed_size"].value:
meta.compr_size = field["data_desc/file_compressed_size"].value
else:
meta.file_size = field["uncompressed_size"].value
if field["compressed_size"].value:
meta.compr_size = field["compressed_size"].value
computeCompressionRate(meta)
self.addGroup(field.name, meta, "File \"%s\"" % meta.get('filename'))
def extract(self, mar):
self.comment = "Contains %s files" % mar["nb_file"].value
self.format_version = ("Microsoft Archive version %s" %
mar["version"].value)
max_nb = maxNbFile(self)
for index, field in enumerate(mar.array("file")):
if max_nb is not None and max_nb <= index:
self.warning("MAR archive contains many files, "
"but only first %s files are processed" % max_nb)
break
meta = Metadata(self)
meta.filename = field["filename"].value
meta.compression = "None"
meta.file_size = field["filesize"].value
self.addGroup(field.name, meta,
"File \"%s\"" % meta.getText('filename'))
def extract(self, mar):
self.comment = "Contains %s files" % mar["nb_file"].value
self.format_version = "Microsoft Archive version %s"\
% mar["version"].value
max_nb = maxNbFile(self)
for index, field in enumerate(mar.array("file")):
if max_nb is not None and max_nb <= index:
self.warning("MAR archive contains many files, "
"but only first %s files are processed"
% max_nb)
break
meta = Metadata(self)
meta.filename = field["filename"].value
meta.compression = "None"
meta.file_size = field["filesize"].value
self.addGroup(field.name, meta,
"File \"%s\"" % meta.getText('filename'))
def extract(self, rar):
l_max_nb = maxNbFile(self)
l_rarformat = rar["signature"].value
if l_rarformat == b"RE~^":
l_format_version = "1.4"
elif l_rarformat[0:6] == b"Rar!\x1A\x07":
if l_rarformat[6:7] == b"\x00":
l_format_version = "1.5" # RAR 4
elif l_rarformat[6:7] == b"\x01":
l_format_version = "5.0"
elif l_rarformat[6:7] == b"\x02":
l_format_version = "> 5.0"
self.format_version = "RAR version %s" % l_format_version
if l_format_version != "1.5":
self.warning("RAR TODO: unknown format_version \"%s\" " %
l_format_version)
l_has_recovery_record = False
l_has_auth_verification = False
l_has_password = False
l_is_multivolume = False
l_is_solid = False
if rar["/archive_start/flags/has_comment"].value:
self.warning("RAR TODO: comment extraction not implemented")
self.comment = "HACHOIR: comment extraction not implemented"
l_has_recovery_record = rar[
"/archive_start/flags/has_recovery_record"].value
l_has_auth_verification = rar[
"/archive_start/flags/has_auth_information"].value
l_has_password = rar["/archive_start/flags/is_locked"].value
l_is_multivolume = rar["/archive_start/flags/vol"].value
l_is_solid = rar["/archive_start/flags/is_solid"].value
is_first_vol = rar["/archive_start/flags/is_first_vol"].value
for l_index, l_field in enumerate(rar.array("new_sub_block")):
if l_field["filename"].value == "CMT":
self.warning("RAR TODO: comment unpacking not implemented")
self.comment = "HACHOIR: comment unpacking not implemented"
elif l_field["filename"].value == "AV":
l_has_auth_verification = True
elif l_field["filename"].value == "RR":
l_has_recovery_record = True
else:
self.warning("RAR TODO: unknown sub_block \"%s\" " %
l_field["filename"].value)
self.has_recovery_record = l_has_recovery_record
self.has_auth_verification = l_has_auth_verification
self.has_password = l_has_password
self.is_multivolume = l_is_multivolume
self.is_solid = l_is_solid
self.is_first_vol = is_first_vol
for l_index, l_field in enumerate(rar.array("file")):
if l_max_nb is not None and l_max_nb <= l_index:
self.warning(
"RAR archive contains many files, but only first %s files are processed"
% l_max_nb)
break
l_meta = Metadata(self)
l_meta.filename = l_field["filename"].value
l_meta.last_modification = l_field["ftime"].value
l_meta.os = l_field["host_os"].display
l_meta.application_version = l_field["version"].display
l_meta.compression = l_field["method"].display
l_meta.file_size = l_field["uncompressed_size"].value
l_meta.compr_size = l_field["compressed_size"].value
self.addGroup(l_field.name, l_meta,
"File \"%s\"" % l_meta.get('filename'))