AVQSVFramesContext Struct Reference

This struct is allocated as AVHWFramesContext.hwctx. More...

#include <hwcontext_qsv.h>

Data Fields
mfxFrameSurface1 *	surfaces
	A pointer to a mfxFrameSurface1 struct. More...
int	nb_surfaces
	Number of frames in the pool. More...
int	frame_type
	A combination of MFX_MEMTYPE_* describing the frame pool. More...
mfxFrameInfo *	info
	A pointer to a mfxFrameInfo struct. More...

Detailed Description

This struct is allocated as AVHWFramesContext.hwctx.

Definition at line 53 of file hwcontext_qsv.h.

Field Documentation

surfaces

mfxFrameSurface1* AVQSVFramesContext::surfaces

A pointer to a mfxFrameSurface1 struct.

It is available when nb_surfaces is non-zero.

Definition at line 59 of file hwcontext_qsv.h.

Referenced by fill_frameinfo_by_link(), frame_alloc(), init_vpp_session(), qsv_fixed_frames_derive_to(), qsv_fixed_pool_alloc(), qsv_fixed_pool_map_to(), qsv_frames_derive_from(), qsv_frames_init(), qsv_init_internal_session(), and qsv_init_pool().

nb_surfaces

int AVQSVFramesContext::nb_surfaces

Number of frames in the pool.

It is 0 for dynamic frame pools or AVHWFramesContext.initial_pool_size for fixed frame pools.

Note only oneVPL GPU runtime 2.9+ can support dynamic frame pools on d3d11va or vaapi

Definition at line 70 of file hwcontext_qsv.h.

Referenced by fill_frameinfo_by_link(), frame_alloc(), init_vpp_session(), qsv_dynamic_frames_derive_to(), qsv_fixed_frames_derive_to(), qsv_fixed_pool_alloc(), qsv_fixed_pool_map_to(), qsv_frames_derive_from(), qsv_frames_init(), qsv_init_internal_session(), qsv_init_pool(), qsv_map_to(), and qsv_pool_alloc().

frame_type

int AVQSVFramesContext::frame_type

A combination of MFX_MEMTYPE_* describing the frame pool.

Definition at line 75 of file hwcontext_qsv.h.

Referenced by init_vpp_session(), qsv_decode_preinit(), qsv_dynamic_frames_derive_to(), qsv_fixed_frames_derive_to(), qsv_frames_derive_from(), qsv_frames_init(), qsv_init_child_ctx(), qsv_init_internal_session(), and qsv_init_pool().

info

mfxFrameInfo* AVQSVFramesContext::info

A pointer to a mfxFrameInfo struct.

It is available when nb_surfaces is 0, all buffers allocated from the pool have the same mfxFrameInfo.

Definition at line 83 of file hwcontext_qsv.h.

Referenced by fill_frameinfo_by_link(), frame_alloc(), qsv_dynamic_frames_derive_to(), qsv_init_internal_session(), and qsv_init_pool().

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The documentation for this struct was generated from the following file:

• libavutil/hwcontext_qsv.h