Remove inheritance from object class, it's not needed

av/audio/codeccontext.pyx

@@ -3,7 +3,6 @@ cimport libav as lib
 from av.audio.format cimport AudioFormat, get_audio_format
 from av.audio.frame cimport AudioFrame, alloc_audio_frame
 from av.audio.layout cimport AudioLayout, get_audio_layout
-from av.error cimport err_check
 from av.frame cimport Frame
 from av.packet cimport Packet
 

av/audio/fifo.pyx

@@ -1,6 +1,4 @@
-from av.audio.format cimport get_audio_format
 from av.audio.frame cimport alloc_audio_frame
-from av.audio.layout cimport get_audio_layout
 from av.error cimport err_check
 
 

av/audio/format.pxd

@@ -1,7 +1,7 @@
 cimport libav as lib
 
 
-cdef class AudioFormat(object):
+cdef class AudioFormat:
 
     cdef lib.AVSampleFormat sample_fmt
 

av/audio/format.pyx

@@ -17,7 +17,7 @@ cdef AudioFormat get_audio_format(lib.AVSampleFormat c_format):
     return format
 
 
-cdef class AudioFormat(object):
+cdef class AudioFormat:
 
     """Descriptor of audio formats."""
 

av/audio/frame.pyx

@@ -56,7 +56,6 @@ cdef class AudioFrame(Frame):
         # Audio filters need AVFrame.channels to match number of channels from layout.
         self.ptr.channels = self.layout.nb_channels
 
-        cdef size_t buffer_size
         if self.layout.channels and nb_samples:
 
             # Cleanup the old buffer.

av/audio/layout.pxd

@@ -1,7 +1,7 @@
 from libc.stdint cimport uint64_t
 
 
-cdef class AudioLayout(object):
+cdef class AudioLayout:
 
     # The layout for FFMpeg; this is essentially a bitmask of channels.
     cdef uint64_t layout
@@ -17,7 +17,7 @@ cdef class AudioLayout(object):
     cdef _init(self, uint64_t layout)
 
 
-cdef class AudioChannel(object):
+cdef class AudioChannel:
 
     # The channel for FFmpeg.
     cdef uint64_t channel

av/audio/layout.pyx

@@ -64,7 +64,7 @@ cdef dict channel_descriptions = {
 }
 
 
-cdef class AudioLayout(object):
+cdef class AudioLayout:
 
     def __init__(self, layout):
 
@@ -105,7 +105,7 @@ cdef class AudioLayout(object):
             return <str>out
 
 
-cdef class AudioChannel(object):
+cdef class AudioChannel:
 
     def __cinit__(self, AudioLayout layout, int index):
         self.channel = lib.av_channel_layout_extract_channel(layout.layout, index)

av/audio/plane.pyx

@@ -1,5 +1,3 @@
-cimport libav as lib
-
 from av.audio.frame cimport AudioFrame
 
 

av/audio/resampler.pxd

@@ -4,7 +4,7 @@ from av.audio.layout cimport AudioLayout
 from av.filter.graph cimport Graph
 
 
-cdef class AudioResampler(object):
+cdef class AudioResampler:
 
     cdef readonly bint is_passthrough
 

av/audio/resampler.pyx

@@ -7,7 +7,7 @@ import errno
 import av.filter
 
 
-cdef class AudioResampler(object):
+cdef class AudioResampler:
 
     """AudioResampler(format=None, layout=None, rate=None)
 

av/buffer.pxd

@@ -1,5 +1,5 @@
 
-cdef class Buffer(object):
+cdef class Buffer:
 
     cdef size_t _buffer_size(self)
     cdef void* _buffer_ptr(self)

av/buffer.pyx

@@ -5,7 +5,7 @@ from av import deprecation
 from av.bytesource cimport ByteSource, bytesource
 
 
-cdef class Buffer(object):
+cdef class Buffer:
 
     """A base class for PyAV objects which support the buffer protocol, such
     as :class:`.Packet` and :class:`.Plane`.

av/bytesource.pxd

@@ -1,7 +1,7 @@
 from cpython.buffer cimport Py_buffer
 
 
-cdef class ByteSource(object):
+cdef class ByteSource:
 
     cdef object owner
 

av/bytesource.pyx

@@ -6,7 +6,7 @@ from cpython.buffer cimport (
 )
 
 
-cdef class ByteSource(object):
+cdef class ByteSource:
 
     def __cinit__(self, owner):
         self.owner = owner

av/codec/codec.pxd

@@ -1,7 +1,7 @@
 cimport libav as lib
 
 
-cdef class Codec(object):
+cdef class Codec:
 
     cdef const lib.AVCodec *ptr
     cdef const lib.AVCodecDescriptor *desc

av/codec/codec.pyx

@@ -1,7 +1,7 @@
 from av.audio.format cimport get_audio_format
 from av.descriptor cimport wrap_avclass
 from av.enum cimport define_enum
-from av.utils cimport avrational_to_fraction, flag_in_bitfield
+from av.utils cimport avrational_to_fraction
 from av.video.format cimport get_video_format
 
 
@@ -138,7 +138,7 @@ class UnknownCodecError(ValueError):
     pass
 
 
-cdef class Codec(object):
+cdef class Codec:
 
     """Codec(name, mode='r')
 

av/codec/context.pxd

@@ -7,7 +7,7 @@ from av.frame cimport Frame
 from av.packet cimport Packet
 
 
-cdef class CodecContext(object):
+cdef class CodecContext:
 
     cdef lib.AVCodecContext *ptr
 

av/codec/context.pyx

@@ -1,7 +1,7 @@
 import warnings
 
 from libc.errno cimport EAGAIN
-from libc.stdint cimport int64_t, uint8_t
+from libc.stdint cimport uint8_t
 from libc.string cimport memcpy
 cimport libav as lib
 
@@ -135,7 +135,7 @@ Flags2 = define_enum('Flags2', __name__, (
 ), is_flags=True)
 
 
-cdef class CodecContext(object):
+cdef class CodecContext:
 
     @staticmethod
     def create(codec, mode=None):

av/container/core.pxd

@@ -13,7 +13,7 @@ ctypedef struct timeout_info:
     double timeout
 
 
-cdef class Container(object):
+cdef class Container:
 
     cdef readonly bint writeable
     cdef lib.AVFormatContext *ptr

av/container/core.pyx

@@ -1,6 +1,5 @@
 from cython.operator cimport dereference
 from libc.stdint cimport int64_t
-from libc.stdlib cimport free, malloc
 
 import os
 import time
@@ -20,9 +19,6 @@ from av.dictionary import Dictionary
 from av.logging import Capture as LogCapture
 
 
-ctypedef int64_t (*seek_func_t)(void *opaque, int64_t offset, int whence) noexcept nogil
-
-
 cdef object _cinit_sentinel = object()
 
 
@@ -166,7 +162,7 @@ Flags = define_enum('Flags', __name__, (
 ), is_flags=True)
 
 
-cdef class Container(object):
+cdef class Container:
 
     def __cinit__(self, sentinel, file_, format_name, options,
                   container_options, stream_options,
@@ -207,7 +203,6 @@ cdef class Container(object):
 
         cdef bytes name_obj = os.fsencode(self.name)
         cdef char *name = name_obj
-        cdef seek_func_t seek_func = NULL
 
         cdef lib.AVOutputFormat *ofmt
         if self.writeable:

av/container/input.pyx

@@ -79,7 +79,7 @@ cdef class InputContainer(Container):
                 codec_context.pkt_timebase = stream.time_base
                 py_codec_context = wrap_codec_context(codec_context, codec)
             else:
-                # no decoder is available
+                # no decoder is available
                 py_codec_context = None
             self.streams.add_stream(wrap_stream(self, stream, py_codec_context))
 

av/container/output.pyx

@@ -1,4 +1,3 @@
-from fractions import Fraction
 import logging
 import os
 

av/container/pyio.pxd

@@ -13,7 +13,7 @@ cdef void pyio_close_gil(lib.AVIOContext *pb)
 cdef void pyio_close_custom_gil(lib.AVIOContext *pb)
 
 
-cdef class PyIOFile(object):
+cdef class PyIOFile:
 
     # File-like source.
     cdef readonly object file

av/container/pyio.pyx

@@ -7,7 +7,7 @@ from av.error cimport stash_exception
 ctypedef int64_t (*seek_func_t)(void *opaque, int64_t offset, int whence) noexcept nogil
 
 
-cdef class PyIOFile(object):
+cdef class PyIOFile:
 
     def __cinit__(self, file, buffer_size, writeable=None):
 

av/container/streams.pxd

@@ -1,7 +1,7 @@
 from av.stream cimport Stream
 
 
-cdef class StreamContainer(object):
+cdef class StreamContainer:
 
     cdef list _streams
 

av/container/streams.pyx

@@ -11,7 +11,7 @@ def _flatten(input_):
             yield x
 
 
-cdef class StreamContainer(object):
+cdef class StreamContainer:
 
     """
 

av/deprecation.py

@@ -21,7 +21,7 @@ class MethodDeprecationWarning(AVDeprecationWarning):
 warnings.filterwarnings("default", "", AVDeprecationWarning)
 
 
-class renamed_attr(object):
+class renamed_attr:
 
     """Proxy for renamed attributes (or methods) on classes.
     Getting and setting values will be redirected to the provided name,
@@ -68,7 +68,7 @@ def __set__(self, instance, value):
         setattr(instance, self.new_name, value)
 
 
-class method(object):
+class method:
     def __init__(self, func):
         functools.update_wrapper(self, func, ("__name__", "__doc__"))
         self.func = func

av/descriptor.pxd

@@ -1,7 +1,7 @@
 cimport libav as lib
 
 
-cdef class Descriptor(object):
+cdef class Descriptor:
 
     # These are present as:
     # - AVCodecContext.av_class (same as avcodec_get_class())

av/descriptor.pyx

@@ -13,7 +13,7 @@ cdef Descriptor wrap_avclass(const lib.AVClass *ptr):
     return obj
 
 
-cdef class Descriptor(object):
+cdef class Descriptor:
 
     def __cinit__(self, sentinel):
         if sentinel is not _cinit_sentinel:

av/dictionary.pxd

@@ -1,7 +1,7 @@
 cimport libav as lib
 
 
-cdef class _Dictionary(object):
+cdef class _Dictionary:
 
     cdef lib.AVDictionary *ptr
 

av/dictionary.pyx

@@ -3,7 +3,7 @@ from collections.abc import MutableMapping
 from av.error cimport err_check
 
 
-cdef class _Dictionary(object):
+cdef class _Dictionary:
 
     def __cinit__(self, *args, **kwargs):
         for arg in args:

av/enum.pyx

@@ -9,9 +9,7 @@ integers for names and values respectively.
 
 """
 
-from collections import OrderedDict
 import copyreg
-import sys
 
 
 cdef sentinel = object()
@@ -135,7 +133,7 @@ def _unpickle(mod_name, cls_name, item_name):
 copyreg.constructor(_unpickle)
 
 
-cdef class EnumItem(object):
+cdef class EnumItem:
 
     """
     Enumerations are when an attribute may only take on a single value at once, and
@@ -322,7 +320,7 @@ cdef class EnumFlag(EnumItem):
         return bool(self.value)
 
 
-cdef class EnumProperty(object):
+cdef class EnumProperty:
 
     cdef object enum
     cdef object fget

av/filter/context.pxd

@@ -4,7 +4,7 @@ from av.filter.filter cimport Filter
 from av.filter.graph cimport Graph
 
 
-cdef class FilterContext(object):
+cdef class FilterContext:
 
     cdef lib.AVFilterContext *ptr
     cdef readonly Graph graph

av/filter/context.pyx

@@ -1,13 +1,11 @@
-from libc.string cimport memcpy
-
-from av.audio.frame cimport AudioFrame, alloc_audio_frame
+from av.audio.frame cimport alloc_audio_frame
 from av.dictionary cimport _Dictionary
 from av.dictionary import Dictionary
 from av.error cimport err_check
 from av.filter.pad cimport alloc_filter_pads
 from av.frame cimport Frame
 from av.utils cimport avrational_to_fraction
-from av.video.frame cimport VideoFrame, alloc_video_frame
+from av.video.frame cimport alloc_video_frame
 
 
 cdef object _cinit_sentinel = object()
@@ -21,7 +19,7 @@ cdef FilterContext wrap_filter_context(Graph graph, Filter filter, lib.AVFilterC
     return self
 
 
-cdef class FilterContext(object):
+cdef class FilterContext:
 
     def __cinit__(self, sentinel):
         if sentinel is not _cinit_sentinel: