("s1", uctypes.UINT16),
("s2", uctypes.UINT8),
("arr", (uctypes.ARRAY, uctypes.UINT16 | 2)),
("s3", uctypes.UINT8),
("sub", (0, o((
("b0", uctypes.UINT8),
("b1", uctypes.UINT8),
)))),
("arr2", (uctypes.ARRAY, 2, {
"fi": uctypes.UINT32
})),
("bitf0", uctypes.BFUINT16 | 0 << uctypes.BF_POS | 8 << uctypes.BF_LEN),
("bitf1", uctypes.BFUINT16 | 8 << uctypes.BF_POS | 8 << uctypes.BF_LEN),
))
offset_less1 = [(x[0] if isinstance(x, tuple) else x) & ~OFFSET_MASK
for x in desc.values()]
sizeof = uctypes.calc_offsets(desc, uctypes.LITTLE_ENDIAN)
print(sizeof)
offsets = [(x[0] if isinstance(x, tuple) else x) & OFFSET_MASK
for x in desc.values()]
print(offsets)
# Nothing except offsets should have changed
offset_less2 = [(x[0] if isinstance(x, tuple) else x) & ~OFFSET_MASK
for x in desc.values()]
print(offset_less1 == offset_less2)
FLAG_VARARGS = 0x04
FLAG_DEFKWARGS = 0x08
mp_raw_code_t_layout = OrderedDict({
"kind":
uctypes.BFUINT32 | 0 << uctypes.BF_POS | 3 << uctypes.BF_LEN,
"scope_flags":
uctypes.BFUINT32 | 3 << uctypes.BF_POS | 7 << uctypes.BF_LEN
| uctypes.PREV_OFFSET,
"n_pos_args":
uctypes.BFUINT32 | 10 << uctypes.BF_POS | 11 << uctypes.BF_LEN
| uctypes.PREV_OFFSET,
"fun_data": (uctypes.PTR, uctypes.VOID),
"const_table": (uctypes.PTR, uctypes.VOID),
})
uctypes.calc_offsets(mp_raw_code_t_layout)
def str2qstr(s):
return id(sys.intern(s)) >> 3
class CodeType:
def __init__(self):
self.co_name = "??"
self.co_filename = "??"
self.co_firstlineno = 0
self.co_lnotab = b'\x00'
self.co_cellvars = ()
self.mpy_cellvars = ()
self.co_consts = ()
av_packet_alloc = _avcodec.func("P", "av_packet_alloc", "")
avcodec_find_decoder = _avcodec.func("P", "avcodec_find_decoder", "i")
av_parser_init = _avcodec.func("P", "av_parser_init", "i")
avcodec_alloc_context3 = _avcodec.func("P", "avcodec_alloc_context3", "P")
avcodec_open2 = _avcodec.func("i", "avcodec_open2", "PPP")
av_frame_alloc = _avcodec.func("P", "av_frame_alloc", "")
AVPacket_layout = OrderedDict({
"buf": (uctypes.PTR, uctypes.VOID),
"pts": uctypes.INT64,
"dts": uctypes.INT64,
"data": (uctypes.PTR, uctypes.UINT8),
"size": uctypes.INT32,
# There're more, but for now we don't care
})
uctypes.calc_offsets(AVPacket_layout)
print(AVPacket_layout)
print("sizeof(AVPacket_layout) =", uctypes.sizeof(AVPacket_layout))
AV_NUM_DATA_POINTERS = 8
AVFrame_layout = OrderedDict({
"data":
(uctypes.ARRAY, AV_NUM_DATA_POINTERS, (uctypes.PTR, uctypes.UINT8)),
"linesize": (uctypes.ARRAY, AV_NUM_DATA_POINTERS | uctypes.INT32),
"extended_data": (uctypes.PTR, uctypes.VOID),
"width":
uctypes.INT32,
"height":
uctypes.INT32,