Fix stub errors in hwaccel, error, and ThreadType

av/codec/context.pyi

@@ -24,8 +24,6 @@ class ThreadType(Flag):
     FRAME = cast(ClassVar[ThreadType], ...)
     SLICE = cast(ClassVar[ThreadType], ...)
     AUTO = cast(ClassVar[ThreadType], ...)
-    def __get__(self, i: object | None, owner: type | None = None) -> ThreadType: ...
-    def __set__(self, instance: object, value: int | str | ThreadType) -> None: ...
 
 class Flags(IntEnum):
     unaligned = cast(int, ...)
@@ -145,7 +143,6 @@ class CodecContext:
     trailing_padding: int
     stats_in: str | None
     thread_count: int
-    thread_type: ThreadType
     skip_frame: Literal[
         "NONE", "DEFAULT", "NONREF", "BIDIR", "NONINTRA", "NONKEY", "ALL"
     ]
@@ -176,6 +173,10 @@ class CodecContext:
     @property
     def frame_num(self) -> int: ...
     @property
+    def thread_type(self) -> ThreadType: ...
+    @thread_type.setter
+    def thread_type(self, value: int | str | ThreadType) -> None: ...
+    @property
     def active_thread_type(self) -> ThreadType: ...
     @property
     def initial_padding(self) -> int: ...

av/codec/hwaccel.pxd

@@ -1,7 +1,5 @@
 cimport libav as lib
 
-from av.codec.codec cimport Codec
-
 
 cdef class HWConfig:
     cdef object __weakref__
@@ -18,7 +16,6 @@ cdef class HWDevice:
 
 cdef class HWAccel:
     cdef str _device
-    cdef readonly Codec codec
     cdef readonly HWConfig config
     cdef lib.AVBufferRef *ptr
     cdef public dict options

av/error.pyi

@@ -1,7 +1,96 @@
 import builtins
+from enum import IntEnum
+
+__all__ = [
+    "ErrorType",
+    "FFmpegError",
+    "LookupError",
+    "HTTPError",
+    "HTTPClientError",
+    "UndefinedError",
+    "PermissionError",
+    "BlockingIOError",
+    "ChildProcessError",
+    "ConnectionAbortedError",
+    "ConnectionRefusedError",
+    "ConnectionResetError",
+    "FileExistsError",
+    "InterruptedError",
+    "IsADirectoryError",
+    "FileNotFoundError",
+    "NotADirectoryError",
+    "BrokenPipeError",
+    "ProcessLookupError",
+    "TimeoutError",
+    "MemoryError",
+    "NotImplementedError",
+    "OverflowError",
+    "OSError",
+    "ArgumentError",
+    "BSFNotFoundError",
+    "BugError",
+    "BufferTooSmallError",
+    "DecoderNotFoundError",
+    "DemuxerNotFoundError",
+    "EncoderNotFoundError",
+    "EOFError",
+    "ExitError",
+    "ExternalError",
+    "FilterNotFoundError",
+    "InvalidDataError",
+    "MuxerNotFoundError",
+    "OptionNotFoundError",
+    "PatchWelcomeError",
+    "ProtocolNotFoundError",
+    "UnknownError",
+    "ExperimentalError",
+    "InputChangedError",
+    "OutputChangedError",
+    "HTTPBadRequestError",
+    "HTTPUnauthorizedError",
+    "HTTPForbiddenError",
+    "HTTPNotFoundError",
+    "HTTPTooManyRequestsError",
+    "HTTPOtherClientError",
+    "HTTPServerError",
+    "PyAVCallbackError",
+]
 
 classes: dict[int, Exception]
 
+class ErrorType(IntEnum):
+    BSF_NOT_FOUND = ...
+    BUG = ...
+    BUFFER_TOO_SMALL = ...
+    DECODER_NOT_FOUND = ...
+    DEMUXER_NOT_FOUND = ...
+    ENCODER_NOT_FOUND = ...
+    EOF = ...
+    EXIT = ...
+    EXTERNAL = ...
+    FILTER_NOT_FOUND = ...
+    INVALIDDATA = ...
+    MUXER_NOT_FOUND = ...
+    OPTION_NOT_FOUND = ...
+    PATCHWELCOME = ...
+    PROTOCOL_NOT_FOUND = ...
+    UNKNOWN = ...
+    EXPERIMENTAL = ...
+    INPUT_CHANGED = ...
+    OUTPUT_CHANGED = ...
+    HTTP_BAD_REQUEST = ...
+    HTTP_UNAUTHORIZED = ...
+    HTTP_FORBIDDEN = ...
+    HTTP_NOT_FOUND = ...
+    HTTP_TOO_MANY_REQUESTS = ...
+    HTTP_OTHER_4XX = ...
+    HTTP_SERVER_ERROR = ...
+    PYAV_CALLBACK = ...
+    @property
+    def tag(self) -> bytes: ...
+    @property
+    def strerror(self) -> str: ...
+
 def code_to_tag(code: int) -> bytes: ...
 def tag_to_code(tag: bytes) -> int: ...
 def err_check(res: int, filename: str | None = None) -> int: ...

av/video/stream.pyi

@@ -29,7 +29,10 @@ class VideoStream(Stream):
     # from codec context
     format: VideoFormat
     thread_count: int
-    thread_type: ThreadType
+    @property
+    def thread_type(self) -> ThreadType: ...
+    @thread_type.setter
+    def thread_type(self, value: int | str | ThreadType) -> None: ...
     width: int
     height: int
     bits_per_coded_sample: int