def useFile(self, field):
meta = Metadata(self)
meta.filename = field["filename"].value
meta.file_size = field["filesize"].value
meta.creation_date = field["timestamp"].value
attr = field["attributes"].value
if attr != "(none)":
meta.file_attr = attr
if meta.has("filename"):
title = "File \"%s\"" % meta.getText('filename')
else:
title = "File"
self.addGroup(field.name, meta, title)
def extract(self, ogg):
granule_quotient = None
for index, page in enumerate(ogg.array("page")):
if "segments" not in page:
continue
page = page["segments"]
if "vorbis_hdr" in page:
meta = Metadata(self)
self.vorbisHeader(page["vorbis_hdr"], meta)
self.addGroup("audio[]", meta, "Audio")
if not granule_quotient and meta.has("sample_rate"):
granule_quotient = meta.get('sample_rate')
if "theora_hdr" in page:
meta = Metadata(self)
self.theoraHeader(page["theora_hdr"], meta)
self.addGroup("video[]", meta, "Video")
if "video_hdr" in page:
meta = Metadata(self)
self.videoHeader(page["video_hdr"], meta)
self.addGroup("video[]", meta, "Video")
if not granule_quotient and meta.has("frame_rate"):
granule_quotient = meta.get('frame_rate')
if "comment" in page:
readVorbisComment(self, page["comment"])
if 3 <= index:
# Only process pages 0..3
break
# Compute duration
if granule_quotient and QUALITY_NORMAL <= self.quality:
page = ogg.createLastPage()
if page and "abs_granule_pos" in page:
try:
self.duration = timedelta(
seconds=float(page["abs_granule_pos"].value) /
granule_quotient)
except OverflowError:
pass
def extract(self, tar):
max_nb = maxNbFile(self)
for index, field in enumerate(tar.array("file")):
if max_nb is not None and max_nb <= index:
self.warning("TAR archive contains many files, "
"but only first %s files are processed"
% max_nb)
break
meta = Metadata(self)
self.extractFile(field, meta)
if meta.has("filename"):
title = 'File "%s"' % meta.getText('filename')
else:
title = "File"
self.addGroup(field.name, meta, title)