本文整理汇总了Python中bitstring.BitStream.tobytes方法的典型用法代码示例。如果您正苦于以下问题：Python BitStream.tobytes方法的具体用法？Python BitStream.tobytes怎么用？Python BitStream.tobytes使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类bitstring.BitStream的用法示例。
在下文中一共展示了BitStream.tobytes方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from bitstring import BitStream [as 别名]
# 或者: from bitstring.BitStream import tobytes [as 别名]
class BitWriter:
def __init__(self):
self._bytes = ""
self._bits = BitStream()
def write_int(self, length, value):
news = BitStream(uint=value, length=length)
start = 0
if self._bits.len > 0:
left = 8 - self._bits.len
if news.len < left:
left = news.len
self._bits = news[:left] + self._bits
start += left
if self._bits.len == 8:
self._bytes += self._bits.tobytes()
self._bits = BitStream()
byte_len = (news.len - start) / 8
if byte_len > 0:
more = byte_len * 8
self._bytes += news[start:start+more].tobytes()
start += more
if news.len > start:
self._bits = news[start:]
def write_int64(self, length, value):
if length <= 32:
self.write_int(length, value)
return
count = length - 32
self.write_int(32, value >> count)
self.write_int(count, value & ((1 << count) - 1))
def write_char_array(self, max_length, value):
self.write_int(bit_count(max_length), len(value))
if self._bits.len > 0:
more = 8 - self._bits.len
tail = (BitStream(int=0, length=more) + self._bits).tobytes()
self._bits = BitStream()
self._bytes += tail
self._bytes += value
def get_bytes(self):
if self._bits.len > 0:
more = 8 - self._bits.len
tail = (BitStream(int=0, length=more) + self._bits).tobytes()
return self._bytes + tail
else:
return self._bytes示例2: __init__
# 需要导入模块: from bitstring import BitStream [as 别名]
# 或者: from bitstring.BitStream import tobytes [as 别名]
#.........这里部分代码省略.........
pass
return True
except ReadError:
return False
def rbsp_trailing_bits(self):
pos = self.rbsp_byte.pos
bits = self.rbsp_byte.bytealign()
self.rbsp_byte.pos = pos
if bits == 0 or self.rbsp_read('uint: %d' % bits) != 1 << bits:
print('Wrong rbsp_trailing_bits at NALU begined at bytes %d' % self.pos)
exit(1)
def profile_tier_level(self, ProfilePresentFlag, MaxNumSubLayersMinus1):
if ProfilePresentFlag:
self.general_profile_space = self.rbsp_read('uint: 2')
self.general_tier_flag = self.rbsp_read('uint: 1')
self.general_profile_idc = self.rbsp_read('uint: 5')
self.general_profile_compatibility_flag = [0] * 32
for i in range(0, 32):
self.general_profile_compatibility_flag[i] = self.rbsp_read("uint: 1")
self.general_reserved_zero_16bits = self.rbsp_read('uint: 16')
self.general_level_idc = self.rbsp_read('uint: 8')
self.sub_layer_profile_present_flag = [0] * MaxNumSubLayersMinus1
self.sub_layer_level_present_flag = [0] * MaxNumSubLayersMinus1
self.sub_layer_profile_space = [0] * MaxNumSubLayersMinus1
self.sub_layer_tier_flag = [0] * MaxNumSubLayersMinus1
self.sub_layer_profile_idc = [0] * MaxNumSubLayersMinus1
self.sub_layer_reserved_zero_16bits = [0] * MaxNumSubLayersMinus1
self.sub_layer_level_idc = [0] * MaxNumSubLayersMinus1
self.sub_layer_profile_compatibility_flag = [[0] * 32] * MaxNumSubLayersMinus1
for i in range(0, MaxNumSubLayersMinus1):
self.sub_layer_profile_present_flag[i] = self.rbsp_read('uint: 1')
self.sub_layer_level_present_flag[i] = self.rbsp_read('uint: 1')
if ProfilePresentFlag and self.sub_layer_profile_present_flag[i]:
self.sub_layer_profile_space[i] = self.rbsp_read('uint: 2')
self.sub_layer_tier_flag[i] = self.rbsp_read('uint: 1')
self.sub_layer_profile_idc[i] = self.rbsp_read('uint: 5')
for j in range(0, 32):
self.sub_layer_profile_compatibility_flag[i][j] = self.rbsp_read('uint: 1')
self.sub_layer_reserved_zero_16bits[i] = self.rbsp_read('uint: 16')
if self.sub_layer_level_present_flag[i]:
self.sub_layer_level_idc[i] = self.rbsp_read('uint: 8')
def op_point(self, opIdx):
self.op_num_layer_id_values_minus1 = [opIdx] = self.rbsp_read('ue')
self.op_layer_id[opIdx] = [0] * self.op_num_layer_id_values_minus1
for i in range(0, self.op_num_layer_id_values_minus1):
self.op_layer_id[opIdx][i] = self.rbsp_read('uint: 6')
def short_term_ref_pic_set(self, idxRps):
if idxRps != 0:
self.inter_ref__pic_set_prediction_flag = self.rbsp_read('uint: 1')
else:
self.inter_ref__pic_set_prediction_flag = 0
if self.inter_ref__pic_set_prediction_flag:
if idxRps == self.num_short_term_ref_pic_sets:
self.delta_idx_minus1 = self.rbsp_read('ue')
else:
self.delta_idx_minus1 = 0
RIdx = idxRps - self.delta_idx_minus1 - 1
self.delta_rps_sign = self.rbsp_read('uint: 1')
self.abs_delta_rps_minus1 = self.rbsp_read('ue')
self.used_by_curr_pic_flag = [0] * (self.NumDeltaPocs[RIdx] + 1)
self.use_delta_flag = [0] * (self.NumDeltaPocs[RIdx] + 1)
for i in range(0, self.NumDeltaPocs[RIdx] + 1):
self.used_by_curr_pic_flag[i] = self.rbsp_read('uint: 1')
if not self.used_by_currpic_flag[i]:
self.use_delta_flag[i] = self.rbsp_read('uint: 1')
else:
num_negative_pics = self.rbsp_read('ue')
num_positive_pics = self.rbsp_read('ue')
self.delta_poc_s0_minus1 = [0] * num_negative_pics
self.used_by_curr_pic_s0_flag = [0] * num_negative_pics
for i in range(0, num_negative_pics):
self.delta_poc_s0_minus1[i] = self.rbsp_read('ue')
self.used_by_curr_pic_s0_flag[i] = self.rbsp_read('uint: 1')
self.delta_poc_s1_minus1 = [0] * num_positive_pics
self.used_by_curr_pic_s1_flag = [0] * num_positive_pics
for i in range(0, num_positive_pics):
self.delta_poc_s1_minus1[i] = self.rbsp_read('ue')
self.used_by_curr_pic_s1_flag[i] = self.rbsp_read('uint: 1')
self.NumDeltaPocs[idxRps] = num_negative_pics + num_positive_pics
def setup(self):
pass
def __str__(self):
return 'NALU: pos=%d, length=%d, type=%s, tid=%d' % (self.pos, self.num_bytes_in_nalu, NAL_UNIT_TYPE[self.nal_unit_type], self.temporal_id)
def print_bin(self):
i = 1
for abyte in self.rbsp_byte.tobytes():
if i == 16:
print('%3s' % hex(abyte)[2: ])
i = 1
else:
print('%3s' % hex(abyte)[2: ], end=' ')
i += 1
print('\n')