def test_stsc_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:32, uintbe:32, uintbe:32",
28, b"stsc", 0, b"\x00\x00\x00",
1, 1, 1, 1)
box_header = Parser.parse_header(bs)
stsc = bx_def.STSC.parse_box(bs, box_header)
box = stsc
assert box.header.start_pos == 0
assert box.header.type == b"stsc"
assert box.header.box_size == 28
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.entry_count == 1
assert len(box.entries) == 0
box.load(bs)
assert len(box.entries) == 1
assert box.entries[0].first_chunk == 1
assert box.entries[0].samples_per_chunk == 1
assert box.entries[0].sample_description_index == 1
assert bytes(box) == bs.bytes
def test_ctts_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:32, uintbe:32",
24, b"ctts", 0, b"\x00\x00\x00",
1, 1, 1)
box_header = Parser.parse_header(bs)
ctts = bx_def.CTTS.parse_box(bs, box_header)
box = ctts
assert box.header.start_pos == 0
assert box.header.type == b"ctts"
assert box.header.box_size == 24
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.entry_count == 1
assert len(box.entries) == 0
box.load(bs)
assert len(box.entries) == 1
assert box.entries[0].sample_count == 1
assert box.entries[0].sample_offset == 1
assert bytes(box) == bs.bytes
def test_stsz_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:32, uintbe:32",
24, b"stsz", 0, b"\x00\x00\x00",
0, 1, 1)
box_header = Parser.parse_header(bs)
stsz = bx_def.STSZ.parse_box(bs, box_header)
box = stsz
assert box.header.start_pos == 0
assert box.header.type == b"stsz"
assert box.header.box_size == 24
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.sample_size == 0
assert box.sample_count == 1
assert len(box.samples) == 0
box.load(bs)
assert len(box.samples) == 1
assert box.samples[0].entry_size == 1
assert bytes(box) == bs.bytes
def test_mdhd_header_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:32, uintbe:32, uintbe:32, "
"bits:1, uint:5, uint:5, uint:5, bits:16",
32, b"mdhd", 0, b"\x00\x00\x00",
3596199850, 3596199850, 30000, 4200196,
0x1, 21, 14, 4, b"\x00" * 2)
box_header = Parser.parse_header(bs)
mdhd = parse.MDHD.parse_box(bs, box_header)
box = mdhd
assert box.header.start_pos == 0
assert box.header.type == b"mdhd"
assert box.header.box_size == 32
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.creation_time == 3596199850
assert box.modification_time == 3596199850
assert box.timescale == 30000
assert box.duration == 4200196
assert box.language == [21, 14, 4]
assert box.pre_defined == 0
assert bytes(box) == bs.bytes
def test_clap_box():
bs = pack("uintbe:32, bytes:4, "
"uintbe:32, uintbe:32, uintbe:32, uintbe:32, "
"intbe:32, uintbe:32, intbe:32, uintbe:32",
40, b"clap",
500, 1, 333, 1,
-12, 2, -179, 2)
box_header = Parser.parse_header(bs)
clap = bx_def.CLAP.parse_box(bs, box_header)
box = clap
assert box.header.start_pos == 0
assert box.header.type == b"clap"
assert box.header.box_size == 40
assert box.clean_aperture_width_n == 500
assert box.clean_aperture_width_d == 1
assert box.clean_aperture_height_n == 333
assert box.clean_aperture_height_d == 1
assert box.horiz_off_n == -12
assert box.horiz_off_d == 2
assert box.vert_off_n == -179
assert box.vert_off_d == 2
assert bytes(box) == bs.bytes
def test_elst_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:32, uintbe:32, uintbe:16, uintbe:16",
28, b"elst", 0, b"\x00\x00\x00",
1, 3000, 0, 1, 0)
box_header = Parser.parse_header(bs)
elst = bx_def.ELST.parse_box(bs, box_header)
box = elst
assert box.header.start_pos == 0
assert box.header.type == b"elst"
assert box.header.box_size == 28
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.entry_count == 1
assert len(box.entries) == 0
box.load(bs)
assert len(box.entries) == 1
assert box.entries[0].segment_duration == 3000
assert box.entries[0].media_time == 0
assert box.entries[0].media_rate_integer == 1
assert box.entries[0].media_rate_fraction == 0
assert bytes(box) == bs.bytes
def test_co64_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:64, uintbe:64, uintbe:64",
40, b"co64", 0, b"\x00\x00\x00",
3, 0, 1, 2)
box_header = Parser.parse_header(bs)
stco = bx_def.CO64.parse_box(bs, box_header)
box = stco
assert box.header.start_pos == 0
assert box.header.type == b"co64"
assert box.header.box_size == 40
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.entry_count == 3
assert len(box.entries) == 0
box.load(bs)
assert len(box.entries) == 3
assert box.entries[0].chunk_offset == 0
assert box.entries[1].chunk_offset == 1
assert box.entries[2].chunk_offset == 2
assert bytes(box) == bs.bytes
def test_sbtt_box():
bs = pack("uintbe:32, bytes:4, "
"uintbe:8, uintbe:8, uintbe:8, uintbe:8, uintbe:8, uintbe:8, "
"uintbe:16, "
"bytes:1, bytes:11",
28, b"sbtt",
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
1,
b'\0', b'text/plain\0')
box_header = Parser.parse_header(bs)
mett = bx_def.METT.parse_box(bs, box_header)
box = mett
assert box.header.start_pos == 0
assert box.header.type == b"sbtt"
assert box.header.box_size == 28
assert box.data_reference_index == 1
assert box.content_encoding == b'\0'
assert box.mime_format == b'text/plain\0'
assert len(box.boxes) == 0
assert bytes(box) == bs.bytes
def test_box_header():
bs = pack("uintbe:32, bytes:4", 100, b"abcd")
box_header = Parser.parse_header(bs)
assert box_header.start_pos == 0
assert box_header.type == b"abcd"
assert box_header.box_size == 100
assert box_header.header_size == 8
assert box_header.content_size == 92
assert bytes(box_header) == bs.bytes
def test_box_header_extended():
bs = pack("uintbe:32, bytes:4, uintbe:64", 1, b"abcd", parse.MAX_UINT_32 + 1)
box_header = Parser.parse_header(bs)
assert box_header.start_pos == 0
assert box_header.type == b"abcd"
assert box_header.box_size == parse.MAX_UINT_32 + 1
assert box_header.header_size == 16
assert box_header.content_size == parse.MAX_UINT_32 + 1 - 16
assert bytes(box_header) == bs.bytes
def test_box_header_user_type():
bs = pack("uintbe:32, bytes:4, bytes:16", 100, b"uuid",
b":benzina\x00\x00\x00\x00\x00\x00\x00\x00")
box_header = Parser.parse_header(bs)
assert box_header.start_pos == 0
assert box_header.type == b"uuid:benzina\x00\x00\x00\x00\x00\x00\x00\x00"
assert box_header.box_size == 100
assert box_header.header_size == 24
assert box_header.content_size == 76
assert bytes(box_header) == bs.bytes
def test_box_header_extended_user_type():
bs = pack("uintbe:32, bytes:4, uintbe:64, bytes:16", 1, b"uuid",
parse.MAX_UINT_32 + 1, b":benzina\x00\x00\x00\x00\x00\x00\x00\x00")
box_header = Parser.parse_header(bs)
assert box_header.start_pos == 0
assert box_header.type == b"uuid:benzina\x00\x00\x00\x00\x00\x00\x00\x00"
assert box_header.box_size == parse.MAX_UINT_32 + 1
assert box_header.header_size == 32
assert box_header.content_size == parse.MAX_UINT_32 + 1 - 32
assert bytes(box_header) == bs.bytes
def test_mdat_box_empty():
bs = pack("uintbe:32, bytes:4",
8, b"mdat")
box_header = Parser.parse_header(bs)
mdat = bx_def.MDAT.parse_box(bs, box_header)
mdat.load(bs)
box = mdat
assert box.header.start_pos == 0
assert box.header.type == b"mdat"
assert box.header.box_size == 8
assert box.data == b''
assert bytes(box) == bs.bytes
def test_nmhd_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24",
12, b"nmhd", 0, b"\x00\x00\x00")
box_header = Parser.parse_header(bs)
nmhd = bx_def.NMHD.parse_box(bs, box_header)
box = nmhd
assert box.header.start_pos == 0
assert box.header.type == b"nmhd"
assert box.header.box_size == 12
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert bytes(box) == bs.bytes
def test_pasp_box():
bs = pack("uintbe:32, bytes:4, uintbe:32, uintbe:32",
16, b"pasp", 150, 157)
box_header = Parser.parse_header(bs)
pasp = bx_def.PASP.parse_box(bs, box_header)
box = pasp
assert box.header.start_pos == 0
assert box.header.type == b"pasp"
assert box.header.box_size == 16
assert box.h_spacing == 150
assert box.v_spacing == 157
assert bytes(box) == bs.bytes
def test_full_box_header():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24",
100, b"abcd", 1, b"\x00\x00\x07")
box_header = Parser.parse_header(bs)
full_box_header = parse.FullBoxHeader()
full_box_header.extend_header(bs, box_header)
del box_header
assert full_box_header.start_pos == 0
assert full_box_header.type == b"abcd"
assert full_box_header.box_size == 100
assert full_box_header.header_size == 12
assert full_box_header.content_size == 88
assert full_box_header.version == 1
assert full_box_header.flags == b"\x00\x00\x07"
assert bytes(full_box_header) == bs.bytes
def test_stsd_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, uintbe:32",
16, b"stsd", 0, b"\x00\x00\x00", 0)
box_header = Parser.parse_header(bs)
stsd = bx_def.STSD.parse_box(bs, box_header)
box = stsd
assert box.header.start_pos == 0
assert box.header.type == b"stsd"
assert box.header.box_size == 16
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.entry_count == 0
assert bytes(box) == bs.bytes
def test_url__box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24",
12, b"url ", 0, b"\x00\x00\x01")
box_header = Parser.parse_header(bs)
url_ = bx_def.URL_.parse_box(bs, box_header)
box = url_
assert box.header.start_pos == 0
assert box.header.type == b"url "
assert box.header.box_size == 12
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x01"
assert box.location is None
assert bytes(box) == bs.bytes
def test_dref_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, uintbe:32",
16, b"dref", 0, b"\x00\x00\x00", 1)
box_header = Parser.parse_header(bs)
dref = bx_def.DREF.parse_box(bs, box_header)
box = dref
assert box.header.start_pos == 0
assert box.header.type == b"dref"
assert box.header.box_size == 16
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.entry_count == 1
assert bytes(box) == bs.bytes
def test_tkhd_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:32, uintbe:32, bits:32, uintbe:32, "
"bits:32, bits:32, "
"uintbe:16, uintbe:16, uintbe:8, uintbe:8, "
"bits:16, "
"uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, "
"uintbe:16, uintbe:16, uintbe:16, uintbe:16",
92, b"tkhd", 0, b"\x00\x00\x07",
3596199850, 3596199850, 1, b"\x00" * 4, 6720313,
b"\x00" * 4, b"\x00" * 4,
0, 0, 0, 0,
b"\x00" * 2,
65536, 0, 0, 0, 65536, 0, 0, 0, 1073741824,
318, 0, 180, 0)
box_header = Parser.parse_header(bs)
tkhd = bx_def.TKHD.parse_box(bs, box_header)
box = tkhd
assert box.header.start_pos == 0
assert box.header.type == b"tkhd"
assert box.header.box_size == 92
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x07"
assert box.creation_time == 3596199850
assert box.modification_time == 3596199850
assert box.track_id == 1
assert box.duration == 6720313
assert box.layer == 0
assert box.alternate_group == 0
assert box.volume == [0, 0]
assert box.matrix == [65536, 0, 0, 0, 65536, 0, 0, 0, 1073741824]
assert box.width == 318
assert box.height == 180
assert box.is_audio is False
assert bytes(box) == bs.bytes
def test_ftyp_box():
bs = pack("uintbe:32, bytes:4, "
"bytes:4, uintbe:32, bytes:12",
28, b"ftyp",
b"mp42", 0, b"mp42mp41iso4")
box_header = Parser.parse_header(bs)
ftyp = parse.FTYP.parse_box(bs, box_header)
box = ftyp
assert box.header.start_pos == 0
assert box.header.type == b"ftyp"
assert box.header.box_size == 28
assert box.major_brand == 1836069938 # b"mp42"
assert box.minor_version == 0
assert box.compatible_brands == [1836069938, # b"mp42"
1836069937, # b"mp41"
1769172788] # b"iso4"
assert bytes(box) == bs.bytes
def test_vmhd_header_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:16, uintbe:16, uintbe:16, uintbe:16",
20, b"vmhd", 0, b"\x00\x00\x01",
0, 0, 0, 0)
box_header = Parser.parse_header(bs)
vmhd = parse.VMHD.parse_box(bs, box_header)
box = vmhd
assert box.header.start_pos == 0
assert box.header.type == b"vmhd"
assert box.header.box_size == 20
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x01"
assert box.graphicsmode == 0
assert box.opcolor == [0, 0, 0]
assert bytes(box) == bs.bytes
def test_hdlr_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, bytes:4, bits:32, bits:32, bits:32, bytes:19",
51, b"hdlr", 0, b"\x00\x00\x00",
0, b"vide", b"\x00" * 4, b"\x00" * 4, b"\x00" * 4, b"Vireo Eyes v2.4.22\0")
box_header = Parser.parse_header(bs)
hdlr = parse.HDLR.parse_box(bs, box_header)
box = hdlr
assert box.header.start_pos == 0
assert box.header.type == b"hdlr"
assert box.header.box_size == 51
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.pre_defined == 0
assert box.handler_type == b"vide"
assert box.name == b"Vireo Eyes v2.4.22\0"
assert bytes(box) == bs.bytes
def test_sample_entry_box():
bs = pack("uintbe:32, bytes:4, "
"uintbe:8, uintbe:8, uintbe:8, uintbe:8, uintbe:8, uintbe:8, "
"uintbe:16",
16, b"____",
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
1)
box_header = Parser.parse_header(bs)
sample_entry_box = bx_def.SampleEntryBox.parse_box(bs, box_header)
box = sample_entry_box
assert box.header.start_pos == 0
assert box.header.type == b"____"
assert box.header.box_size == 16
assert box.data_reference_index == 1
assert len(box.boxes) == 0
assert bytes(box) == bs.bytes
def test_mvhd_box():
bs = pack("uintbe:32, bytes:4, uintbe:8, bits:24, "
"uintbe:32, uintbe:32, uintbe:32, uintbe:32, "
"uintbe:16, uintbe:16, uintbe:8, uintbe:8, "
"bits:16, bits:32, bits:32, "
"uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, uintbe:32, "
"bits:32, bits:32, bits:32, bits:32, bits:32, bits:32, "
"uintbe:32",
108, b"mvhd", 0, b"\x00\x00\x00",
3596199850, 3596199850, 48000, 6720608,
1, 0, 1, 0,
b"\x00" * 2, b"\x00" * 4, b"\x00" * 4,
65536, 0, 0, 0, 65536, 0, 0, 0, 1073741824,
b"\x00" * 4, b"\x00" * 4, b"\x00" * 4, b"\x00" * 4, b"\x00" * 4, b"\x00" * 4,
3)
box_header = Parser.parse_header(bs)
mvhd = bx_def.MVHD.parse_box(bs, box_header)
box = mvhd
assert box.header.start_pos == 0
assert box.header.type == b"mvhd"
assert box.header.box_size == 108
assert box.header.version == 0
assert box.header.flags == b"\x00\x00\x00"
assert box.creation_time == 3596199850
assert box.modification_time == 3596199850
assert box.timescale == 48000
assert box.duration == 6720608
assert box.rate == [1, 0]
assert box.volume == [1, 0]
assert box.matrix == [65536, 0, 0, 0, 65536, 0, 0, 0, 1073741824]
assert box.pre_defined == [b"\x00" * 4] * 6
assert box.next_track_id == 3
assert bytes(box) == bs.bytes
def test_avc1_box():
bs = pack("uintbe:32, bytes:4, "
"uintbe:8, uintbe:8, uintbe:8, uintbe:8, uintbe:8, uintbe:8, "
"uintbe:16, "
"uintbe:16, uintbe:16, uintbe:32, uintbe:32, uintbe:32, "
"uintbe:16, uintbe:16, uintbe:16, uintbe:16, uintbe:16, uintbe:16, "
"uintbe:32, "
"uintbe:16, bytes:32, uintbe:16, "
"intbe:16",
58, b"avc1",
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
1,
0x0, 0x0, 0x0, 0x0, 0x0,
512, 512, 72, 0, 72, 0,
0x0,
1, b'\0' * 32, 24,
-1)
box_header = Parser.parse_header(bs)
avc1 = bx_def.AVC1.parse_box(bs, box_header)
box = avc1
assert box.header.start_pos == 0
assert box.header.type == b"avc1"
assert box.header.box_size == 58
assert box.data_reference_index == 1
assert box.width == 512
assert box.height == 512
assert box.horizresolution == [72, 0]
assert box.vertresolution == [72, 0]
assert box.frame_count == 1
assert box.compressorname == b'\0' * 32
assert box.depth == 24
assert len(box.boxes) == 0
assert bytes(box) == bs.bytes
def test_hvcc_box():
bs = pack("uintbe:32, bytes:4, "
"uintbe:8, "
"int:2, int:1, int:5, uintbe:32, uintbe:48, uintbe:8, "
"bits:4, int:12, bits:6, int:2, bits:6, int:2, bits:5, int:3, bits:5, int:3, "
"uintbe:16, uint:2, uint:3, uint:1, uint:2, uint:8, "
"uint:1, bits:1, uint:6, uintbe:16, "
"uint:16, bytes:3",
39, b"hvcc",
1,
0, 0, 3, 1879048192, 193514046488576, 90,
'0b1111', 0, '0b111111', 0, '0b111111', 1, '0b11111', 0, '0b11111', 0,
0, 0, 1, 0, 3, 1,
1, '0b0', 32, 1,
3, b"321")
box_header = Parser.parse_header(bs)
hvcc = bx_def.HVCC.parse_box(bs, box_header)
box = hvcc
assert box.header.start_pos == 0
assert box.header.type == b"hvcc"
assert box.header.box_size == 39
assert box.configuration_version == 1
assert box.general_profile_space == 0
assert box.general_tier_flag == 0
assert box.general_profile_idc == 3
assert box.general_profile_compatibility_flags == 1879048192
assert box.general_constraint_indicator_flags == 193514046488576
assert box.general_level_idc == 90
assert box.min_spatial_segmentation_idc == 0
assert box.parallelism_type == 0
assert box.chroma_format == 1
assert box.bit_depth_luma_minus_8 == 0
assert box.bit_depth_chroma_minus_8 == 0
assert box.avg_frame_rate == 0
assert box.constant_frame_rate == 0
assert box.num_temporal_layers == 1
assert box.temporal_id_nested == 0
assert box.length_size_minus_one == 3
assert box.num_of_arrays == 1
assert len(box.arrays) == 0
box.load(bs)
assert len(box.arrays) == 1
array = box.arrays[0]
assert array.array_completeness == 1
assert array.nal_unit_type == 32
assert array.num_nalus == 1
assert len(array.nalus) == 1
nalu = array.nalus[0]
assert nalu.nal_unit_length == 3
assert nalu.nal_unit == b"321"
assert bytes(box) == bs.bytes
def test_photo_heic_guided_parsing():
bstr = ConstBitStream(filename="data/photo.heic")
box_header = Parser.parse_header(bstr)
ftyp = parse.FTYP.parse_box(bstr, box_header)
assert ftyp.header.start_pos == 0
assert ftyp.header.type == b"ftyp"
assert ftyp.header.box_size == 24
assert ftyp.major_brand == 1751476579 # b"heic"
assert ftyp.minor_version == 0
assert ftyp.compatible_brands == [1835623985, # b"mif1"
1751476579] # b"heic"
assert ftyp.padding == b''
# meta
box_header = Parser.parse_header(bstr)
meta = parse.META.parse_box(bstr, box_header)
assert meta.header.start_pos == 24
assert meta.header.type == b"meta"
assert meta.header.box_size == 3955
assert meta.header.version == 0
assert meta.header.flags == b"\x00\x00\x00"
assert meta.padding == b''
# meta/hdlr
box_header = Parser.parse_header(bstr)
hdlr = parse.HDLR.parse_box(bstr, box_header)
assert hdlr.header.start_pos == 36
assert hdlr.header.type == b"hdlr"
assert hdlr.header.box_size == 34
assert hdlr.header.version == 0
assert hdlr.header.flags == b"\x00\x00\x00"
assert hdlr.pre_defined == 0
assert hdlr.handler_type == b"pict"
assert hdlr.name == b'\0'
assert hdlr.padding == b'\0'
# meta/dinf
box_header = Parser.parse_header(bstr)
dinf = parse.DINF.parse_box(bstr, box_header)
assert dinf.header.start_pos == 70
assert dinf.header.type == b"dinf"
assert dinf.header.box_size == 36
assert dinf.padding == b''
# meta/dinf/dref
box_header = Parser.parse_header(bstr)
dref = parse.DREF.parse_box(bstr, box_header)
assert dref.header.start_pos == 78
assert dref.header.type == b"dref"
assert dref.header.box_size == 28
assert dref.header.version == 0
assert dref.header.flags == b"\x00\x00\x00"
assert dref.entry_count == 1
assert dref.padding == b''
# meta/dinf/dref/url_
box_header = Parser.parse_header(bstr)
url = parse.URL_.parse_box(bstr, box_header)
assert url.header.start_pos == 94
assert url.header.type == b"url "
assert url.header.box_size == 12
assert url.location is None
assert url.padding == b''
# meta/pitm
box_header = Parser.parse_header(bstr)
pitm = parse.PITM.parse_box(bstr, box_header)
assert pitm.header.start_pos == 106
assert pitm.header.type == b"pitm"
assert pitm.header.box_size == 14
assert pitm.padding == b''
# meta/iinf
box_header = Parser.parse_header(bstr)
iinf = parse.IINF.parse_box(bstr, box_header)
assert iinf.header.start_pos == 120
assert iinf.header.type == b"iinf"
assert iinf.header.box_size == 1085
assert iinf.entry_count == 51
assert iinf.padding == b''
for i in range(iinf.entry_count):
# meta/iinf/infe
box_header = Parser.parse_header(bstr)
infe = parse.INFE.parse_box(bstr, box_header)
if infe.item_id == 49:
assert infe.header.start_pos == 134 + 48 * 21
assert infe.header.type == b"infe"
assert infe.header.box_size == 21
assert infe.header.version == 2
assert infe.header.flags == b"\x00\x00\x00"
assert infe.item_id == 49
assert infe.item_protection_index == 0
assert infe.item_type == 1735551332 # b"grid"
assert infe.item_name == b'\0'
assert infe.content_type is None
assert infe.content_encoding is None
assert infe.item_uri_type is None
assert infe.extension_type is None
assert infe.padding == b''
elif infe.item_id == 50:
assert infe.header.start_pos == 134 + 49 * 21
assert infe.header.type == b"infe"
assert infe.header.box_size == 21
assert infe.header.version == 2
assert infe.header.flags == b"\x00\x00\x00"
assert infe.item_id == 50
assert infe.item_protection_index == 0
assert infe.item_type == 1752589105 # b"hvc1"
assert infe.item_name == b'\0'
assert infe.content_type is None
assert infe.content_encoding is None
assert infe.item_uri_type is None
assert infe.extension_type is None
assert infe.padding == b''
elif infe.item_id == 51:
assert infe.header.start_pos == 134 + 50 * 21
assert infe.header.type == b"infe"
assert infe.header.box_size == 21
assert infe.header.version == 2
assert infe.header.flags == b"\x00\x00\x01"
assert infe.item_id == 51
assert infe.item_protection_index == 0
assert infe.item_type == 1165519206 # b"Exif"
assert infe.item_name == b'\0'
assert infe.content_type is None
assert infe.content_encoding is None
assert infe.item_uri_type is None
assert infe.extension_type is None
assert infe.padding == b''
else:
assert infe.header.start_pos == 134 + i * 21
assert infe.header.type == b"infe"
assert infe.header.box_size == 21
assert infe.header.version == 2
assert infe.header.flags == b"\x00\x00\x01"
assert infe.item_id == i + 1
assert infe.item_protection_index == 0
assert infe.item_type == 1752589105 # b"hvc1"
assert infe.item_name == b'\0'
assert infe.content_type is None
assert infe.content_encoding is None
assert infe.item_uri_type is None
assert infe.extension_type is None
assert infe.padding == b''
# meta/iref
box_header = Parser.parse_header(bstr)
iref = parse.IREF.parse_box(bstr, box_header)
assert iref.header.start_pos == 1205
assert iref.header.type == b"iref"
assert iref.header.box_size == 148
assert iref.header.version == 0
assert iref.header.flags == b"\x00\x00\x00"
assert iref.padding == b''
# meta/iref/dimg
box_header = Parser.parse_header(bstr)
dimg = SingleItemTypeReferenceBox.parse_box(bstr, box_header)
assert dimg.header.start_pos == 1217
assert dimg.header.type == b"dimg"
assert dimg.header.box_size == 108
assert dimg.from_item_id == 49
assert dimg.reference_count == 48
assert dimg.to_item_ids == [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
39, 40, 41, 42, 43, 44, 45, 46, 47, 48]
assert dimg.padding == b''
# meta/iref/thmb
box_header = Parser.parse_header(bstr)
thmb = SingleItemTypeReferenceBox.parse_box(bstr, box_header)
assert thmb.header.start_pos == 1325
assert thmb.header.type == b"thmb"
assert thmb.header.box_size == 14
assert thmb.from_item_id == 50
assert thmb.reference_count == 1
assert thmb.to_item_ids == [49]
assert thmb.padding == b''
# meta/iref/cdsc
box_header = Parser.parse_header(bstr)
cdsc = SingleItemTypeReferenceBox.parse_box(bstr, box_header)
assert cdsc.header.start_pos == 1339
assert cdsc.header.type == b"cdsc"
assert cdsc.header.box_size == 14
assert cdsc.from_item_id == 51
assert cdsc.reference_count == 1
assert cdsc.to_item_ids == [49]
assert cdsc.padding == b''
# meta/iprp
box_header = Parser.parse_header(bstr)
iprp = parse.IPRP.parse_box(bstr, box_header)
assert iprp.header.start_pos == 1353
assert iprp.header.type == b"iprp"
assert iprp.header.box_size == 1778
assert iprp.padding == b''
# meta/iprp/ipco
box_header = Parser.parse_header(bstr)
ipco = parse.IPCO.parse_box(bstr, box_header)
assert ipco.header.start_pos == 1361
assert ipco.header.type == b"ipco"
assert ipco.header.box_size == 1452
assert ipco.padding == b''
# meta/iprp/ipco/colr
box_header = Parser.parse_header(bstr)
colr = UnknownBox.parse_box(bstr, box_header)
assert colr.header.start_pos == 1369
assert colr.header.type == b"colr"
assert colr.header.box_size == 560
assert colr.padding == b''
# meta/iprp/ipco/hvcC
box_header = Parser.parse_header(bstr)
hvcC = UnknownBox.parse_box(bstr, box_header)
assert hvcC.header.start_pos == 1929
assert hvcC.header.type == b"hvcC"
assert hvcC.header.box_size == 112
assert hvcC.padding == b''
# meta/iprp/ipco/ispe
box_header = Parser.parse_header(bstr)
ispe = UnknownBox.parse_box(bstr, box_header)
assert ispe.header.start_pos == 2041
assert ispe.header.type == b"ispe"
assert ispe.header.box_size == 20
assert ispe.padding == b''
# meta/iprp/ipco/ispe
box_header = Parser.parse_header(bstr)
ispe = UnknownBox.parse_box(bstr, box_header)
assert ispe.header.start_pos == 2061
assert ispe.header.type == b"ispe"
assert ispe.header.box_size == 20
assert ispe.padding == b''
# meta/iprp/ipco/irot
box_header = Parser.parse_header(bstr)
irot = UnknownBox.parse_box(bstr, box_header)
assert irot.header.start_pos == 2081
assert irot.header.type == b"irot"
assert irot.header.box_size == 9
assert irot.padding == b''
# meta/iprp/ipco/pixi
box_header = Parser.parse_header(bstr)
pixi = UnknownBox.parse_box(bstr, box_header)
assert pixi.header.start_pos == 2090
assert pixi.header.type == b"pixi"
assert pixi.header.box_size == 16
assert pixi.padding == b''
# meta/iprp/ipco/colr
box_header = Parser.parse_header(bstr)
colr = UnknownBox.parse_box(bstr, box_header)
assert colr.header.start_pos == 2106
assert colr.header.type == b"colr"
assert colr.header.box_size == 560
assert colr.padding == b''
# meta/iprp/ipco/hvcC
box_header = Parser.parse_header(bstr)
hvcC = UnknownBox.parse_box(bstr, box_header)
assert hvcC.header.start_pos == 2666
assert hvcC.header.type == b"hvcC"
assert hvcC.header.box_size == 111
assert hvcC.padding == b''
# meta/iprp/ipco/ispe
box_header = Parser.parse_header(bstr)
ispe = UnknownBox.parse_box(bstr, box_header)
assert ispe.header.start_pos == 2777
assert ispe.header.type == b"ispe"
assert ispe.header.box_size == 20
assert ispe.padding == b''
# meta/iprp/ipco/pixi
box_header = Parser.parse_header(bstr)
pixi = UnknownBox.parse_box(bstr, box_header)
assert pixi.header.start_pos == 2797
assert pixi.header.type == b"pixi"
assert pixi.header.box_size == 16
assert pixi.padding == b''
# meta/iprp/ipma
box_header = Parser.parse_header(bstr)
ipma = parse.IPMA.parse_box(bstr, box_header)
assert ipma.header.start_pos == 2813
assert ipma.header.type == b"ipma"
assert ipma.header.box_size == 318
assert ipma.header.version == 0
assert ipma.header.flags == b"\x00\x00\x00"
assert ipma.entry_count == 50
assert len(ipma.entries) == 50
assert ipma.padding == b''
entry = ipma.entries[0]
assert entry.item_id == 1
assert entry.association_count == 3
assert len(entry.associations) == 3
association = entry.associations[0]
assert association.essential == 1
assert association.property_index == 3
association = entry.associations[1]
assert association.essential == 1
assert association.property_index == 1
association = entry.associations[2]
assert association.essential == 1
assert association.property_index == 2
entry = ipma.entries[1]
assert entry.item_id == 2
assert entry.association_count == 3
assert len(entry.associations) == 3
association = entry.associations[0]
assert association.essential == 1
assert association.property_index == 3
association = entry.associations[1]
assert association.essential == 1
assert association.property_index == 1
association = entry.associations[2]
assert association.essential == 1
assert association.property_index == 2
entry = ipma.entries[48]
assert entry.item_id == 49
assert entry.association_count == 3
assert len(entry.associations) == 3
association = entry.associations[0]
assert association.essential == 0
assert association.property_index == 4
association = entry.associations[1]
assert association.essential == 1
assert association.property_index == 5
association = entry.associations[2]
assert association.essential == 0
assert association.property_index == 6
entry = ipma.entries[49]
assert entry.item_id == 50
assert entry.association_count == 5
assert len(entry.associations) == 5
association = entry.associations[0]
assert association.essential == 1
assert association.property_index == 7
association = entry.associations[1]
assert association.essential == 1
assert association.property_index == 8
association = entry.associations[2]
assert association.essential == 0
assert association.property_index == 9
association = entry.associations[3]
assert association.essential == 1
assert association.property_index == 5
association = entry.associations[4]
assert association.essential == 0
assert association.property_index == 10
# meta/idat
box_header = Parser.parse_header(bstr)
idat = parse.IDAT.parse_box(bstr, box_header)
idat.load(bstr)
assert idat.header.start_pos == 3131
assert idat.header.type == b"idat"
assert idat.header.box_size == 16
assert len(idat.data) == 8
assert idat.data[0] == int.from_bytes(b"\x00", "big")
assert idat.data[1] == int.from_bytes(b"\x00", "big")
assert idat.data[6] == int.from_bytes(b"\x0b", "big")
assert idat.data[7] == int.from_bytes(b"\xd0", "big")
assert idat.padding == b''
# meta/iloc
box_header = Parser.parse_header(bstr)
iloc = parse.ILOC.parse_box(bstr, box_header)
assert iloc.header.start_pos == 3147
assert iloc.header.type == b"iloc"
assert iloc.header.box_size == 832
assert iloc.header.version == 1
assert iloc.header.flags == b"\x00\x00\x00"
assert iloc.padding == b''
assert iloc.offset_size == 4
assert iloc.length_size == 4
assert iloc.base_offset_size == 0
assert iloc.index_size == 0
assert iloc.item_count == 51
assert len(iloc.items) == 51
assert iloc.padding == b''
item = iloc.items[0]
assert item.item_id == 1
assert item.construction_method == 0
assert item.data_reference_index == 0
assert item.base_offset is None
assert item.extent_count == 1
assert len(item.extents) == 1
extent = item.extents[0]
assert extent.extent_index is None
assert extent.extent_offset == 14854
assert extent.extent_length == 33763
item = iloc.items[1]
assert item.item_id == 2
assert item.construction_method == 0
assert item.data_reference_index == 0
assert item.base_offset is None
assert item.extent_count == 1
assert len(item.extents) == 1
extent = item.extents[0]
assert extent.extent_index is None
assert extent.extent_offset == 48617
assert extent.extent_length == 35158
item = iloc.items[49]
assert item.item_id == 50
assert item.construction_method == 0
assert item.data_reference_index == 0
assert item.base_offset is None
assert item.extent_count == 1
assert len(item.extents) == 1
extent = item.extents[0]
assert extent.extent_index is None
assert extent.extent_offset == 3995
assert extent.extent_length == 8651
item = iloc.items[50]
assert item.item_id == 51
assert item.construction_method == 0
assert item.data_reference_index == 0
assert item.base_offset is None
assert item.extent_count == 1
assert len(item.extents) == 1
extent = item.extents[0]
assert extent.extent_index is None
assert extent.extent_offset == 12646
assert extent.extent_length == 2208
# mdat
box_header = Parser.parse_header(bstr)
mdat = parse.MDAT.parse_box(bstr, box_header)
mdat.load(bstr)
assert mdat.header.start_pos == 3979
assert mdat.header.type == b"mdat"
assert mdat.header.box_size == 1350049
assert len(mdat.data) == 1350033
assert mdat.data[0] == int.from_bytes(b"\x00", "big")
assert mdat.data[1] == int.from_bytes(b"\x00", "big")
assert mdat.data[6] == int.from_bytes(b"\xaf", "big")
assert mdat.data[7] == int.from_bytes(b"\x88", "big")
assert mdat.data[1350031] == int.from_bytes(b"\xfd", "big")
assert mdat.data[1350032] == int.from_bytes(b"\x80", "big")
assert mdat.padding == b''
mdia_boxes_end = mdia.header.start_pos + mdia.header.box_size
bstr.bytepos = mdia.boxes_start_pos
for box_header in Parser.parse(bstr, headers_only=True):
if bstr.bytepos >= mdia_boxes_end:
break
if box_header.type != b"hdlr":
box = Parser.parse_box(bstr, box_header)
box.load(bstr)
else:
# hdlr.name should finish with a b'\0'. If it doesn't, add one
# Add a b'\0' for safety
hdlr_bstr = BitStream(bytes(box_header))
hdlr_header = Parser.parse_header(hdlr_bstr)
hdlr_header.box_size += 1
hdlr_bstr.overwrite(bytes(hdlr_header), 0)
hdlr_bstr.append(
bstr.read("bytes:{}".format(box_header.box_size -
box_header.header_size)) + b'\0')
box = Parser.parse_box(hdlr_bstr, hdlr_header)
box.load(hdlr_bstr)
# Prevent adding one too many b'\0'
if box.padding.startswith(b'\0'):
box.padding = box.padding[1:]
mdia.append(box)
del bstr