def read_iso_file(fobj):
fobj.seek(0)
al = list(atoms.read_atoms(fobj))
ad = atoms.atoms_dict(al)
aftyp, amoov, mdat = select_atoms(ad, ('ftyp', 1, 1), ('moov', 1, 1),
('mdat', 1, None))
# print '(first mdat offset: %d)' % mdat[0].offset
return aftyp, amoov, al
def load(args):
if not os.path.isfile(args):
print("File %s not found" % args)
return 1
else:
print("Loading file %s" % args)
f = open(args, "rb")
global_dat.globdat = f.read()
f.close()
print("Length of data: %d" % len(global_dat.globdat))
a.read_atoms(global_dat.globdat)
for atom in global_dat.atoms:
print()
atom.printMe()
# if atom.name == "mdat":
# print("\t**s an mdat atom. Has no children :)")
#else:
a.find_childs(atom)
print("Load Complete")
def read(cls, a):
a.seek_to_data()
a.skip(6)
idx = atoms.read_ushort(a.f)
a.skip(4 * 4)
width = atoms.read_ushort(a.f)
height = atoms.read_ushort(a.f)
hr = a.read_bytes(4)
vr = a.read_bytes(4)
reserved = atoms.read_ulong(a.f)
fc = atoms.read_ushort(a.f)
comp = a.read_bytes(32)
depth = atoms.read_ushort(a.f)
minusone = atoms.read_short(a.f)
if (minusone != -1):
raise FormatError()
# optional boxes follow
extra = list(atoms.read_atoms(a.f, a.size - 86))
a.seek_to_data()
a.skip(86)
extra = map(lambda a: maybe_build_atoms(a.type, [a])[0], extra)
return cls(a, index=idx, width=width, height=height, comp=comp, extra=extra)
def read(cls, a):
a.seek_to_data()
a.skip(6) # reserved
idx = atoms.read_ushort(a.f)
version = atoms.read_ushort(a.f)
a.skip(4 + 2) # reserved
channelcount = atoms.read_ushort(a.f)
if channelcount == 3:
channelcount = 6 # from mp4split
samplesize = atoms.read_ushort(a.f)
a.skip(4)
sampleratehi = atoms.read_ushort(a.f)
sampleratelo = atoms.read_ushort(a.f)
# FIXME: parse version != 0 samples_per_packet etc..
# optional boxes follow
extra = list(atoms.read_atoms(a.f, a.size - 36))
a.seek_to_data()
a.skip(36)
extra = map(lambda a: maybe_build_atoms(a.type, [a])[0], extra)
return cls(a, index=idx, channelcount=channelcount, samplesize=samplesize,
sampleratehi=sampleratehi, sampleratelo=sampleratelo,
extra=extra)
