cimport libav as lib
from libc.stdint cimport int64_t
from av.bytesource cimport ByteSource
from av.codec.codec cimport Codec
from av.codec.hwaccel cimport HWAccel
from av.frame cimport Frame
from av.packet cimport Packet
cdef class CodecContext:
cdef lib.AVCodecContext *ptr
# Whether AVCodecContext.extradata should be de-allocated upon destruction.
cdef bint extradata_set
# Used as a signal that this is within a stream, and also for us to access that
# stream. This is set "manually" by the stream after constructing this object.
cdef int stream_index
cdef lib.AVCodecParserContext *parser
cdef _init(self, lib.AVCodecContext *ptr, const lib.AVCodec *codec, HWAccel hwaccel)
# Public API.
cdef readonly bint is_open
cdef readonly Codec codec
cdef readonly HWAccel hwaccel
cdef public dict options
cpdef open(self, bint strict=?)
# Wraps both versions of the transcode API, returning lists.
cpdef encode(self, Frame frame=?)
cpdef decode(self, Packet packet=?)
cpdef flush_buffers(self)
# Used by hardware-accelerated decode.
cdef HWAccel hwaccel_ctx
# Used by both transcode APIs to setup user-land objects.
# TODO: Remove the `Packet` from `_setup_decoded_frame` (because flushing packets
# are bogus). It should take all info it needs from the context and/or stream.
cdef _prepare_and_time_rebase_frames_for_encode(self, Frame frame)
cdef _prepare_frames_for_encode(self, Frame frame)
cdef _setup_encoded_packet(self, Packet)
cdef _setup_decoded_frame(self, Frame, Packet)
# Implemented by base for the generic send/recv API.
# Note that the user cannot send without receiving. This is because
# `_prepare_frames_for_encode` may expand a frame into multiple (e.g. when
# resampling audio to a higher rate but with fixed size frames), and the
# send/recv buffer may be limited to a single frame. Ergo, we need to flush
# the buffer as often as possible.
cdef _recv_packet(self)
cdef _send_packet_and_recv(self, Packet packet)
cdef _recv_frame(self)
cdef _transfer_hwframe(self, Frame frame)
# Implemented by children for the generic send/recv API, so we have the
# correct subclass of Frame.
cdef Frame _next_frame
cdef Frame _alloc_next_frame(self)
cdef CodecContext wrap_codec_context(lib.AVCodecContext*, const lib.AVCodec*, HWAccel hwaccel)