struct AVHWDeviceContext

Defined at line 61 of file ../../prebuilt/third_party/ffmpeg/pkg/ffmpeg/include/libavutil/hwcontext.h

This struct aggregates all the (hardware/vendor-specific) "high-level" state,

i.e. state that is not tied to a concrete processing configuration.

E.g., in an API that supports hardware-accelerated encoding and decoding,

this struct will (if possible) wrap the state that is common to both encoding

and decoding and from which specific instances of encoders or decoders can be

derived.

This struct is reference-counted with the AVBuffer mechanism. The

av_hwdevice_ctx_alloc() constructor yields a reference, whose data field

points to the actual AVHWDeviceContext. Further objects derived from

AVHWDeviceContext (such as AVHWFramesContext, describing a frame pool with

specific properties) will hold an internal reference to it. After all the

references are released, the AVHWDeviceContext itself will be freed,

optionally invoking a user-specified callback for uninitializing the hardware

state.

Public Members

const AVClass * av_class

AVHWDeviceInternal * internal

AVHWDeviceType type

void * hwctx

void (*)(struct AVHWDeviceContext *) free

void * user_opaque