1  from typing import Optional, Tuple
   2  
   3  AdpcmState = Tuple[int, int]
   4  RatecvState = Tuple[int, Tuple[Tuple[int, int], ...]]
   5  
   6  class error(Exception): ...
   7  
   8  def add(__fragment1: bytes, __fragment2: bytes, __width: int) -> bytes: ...
   9  def adpcm2lin(__fragment: bytes, __width: int, __state: Optional[AdpcmState]) -> Tuple[bytes, AdpcmState]: ...
  10  def alaw2lin(__fragment: bytes, __width: int) -> bytes: ...
  11  def avg(__fragment: bytes, __width: int) -> int: ...
  12  def avgpp(__fragment: bytes, __width: int) -> int: ...
  13  def bias(__fragment: bytes, __width: int, __bias: int) -> bytes: ...
  14  def byteswap(__fragment: bytes, __width: int) -> bytes: ...
  15  def cross(__fragment: bytes, __width: int) -> int: ...
  16  def findfactor(__fragment: bytes, __reference: bytes) -> float: ...
  17  def findfit(__fragment: bytes, __reference: bytes) -> Tuple[int, float]: ...
  18  def findmax(__fragment: bytes, __length: int) -> int: ...
  19  def getsample(__fragment: bytes, __width: int, __index: int) -> int: ...
  20  def lin2adpcm(__fragment: bytes, __width: int, __state: Optional[AdpcmState]) -> Tuple[bytes, AdpcmState]: ...
  21  def lin2alaw(__fragment: bytes, __width: int) -> bytes: ...
  22  def lin2lin(__fragment: bytes, __width: int, __newwidth: int) -> bytes: ...
  23  def lin2ulaw(__fragment: bytes, __width: int) -> bytes: ...
  24  def max(__fragment: bytes, __width: int) -> int: ...
  25  def maxpp(__fragment: bytes, __width: int) -> int: ...
  26  def minmax(__fragment: bytes, __width: int) -> Tuple[int, int]: ...
  27  def mul(__fragment: bytes, __width: int, __factor: float) -> bytes: ...
  28  def ratecv(
  29      __fragment: bytes,
  30      __width: int,
  31      __nchannels: int,
  32      __inrate: int,
  33      __outrate: int,
  34      __state: Optional[RatecvState],
  35      __weightA: int = ...,
  36      __weightB: int = ...,
  37  ) -> Tuple[bytes, RatecvState]: ...
  38  def reverse(__fragment: bytes, __width: int) -> bytes: ...
  39  def rms(__fragment: bytes, __width: int) -> int: ...
  40  def tomono(__fragment: bytes, __width: int, __lfactor: float, __rfactor: float) -> bytes: ...
  41  def tostereo(__fragment: bytes, __width: int, __lfactor: float, __rfactor: float) -> bytes: ...
  42  def ulaw2lin(__fragment: bytes, __width: int) -> bytes: ...
  43