FFmpeg: AVHWFramesConstraints Struct Reference

FFmpeg

This struct describes the constraints on hardware frames attached to a given device with a hardware-specific configuration. More...

#include <hwcontext.h>

Data Fields
enum AVPixelFormat *	valid_hw_formats
	A list of possible values for format in the hw_frames_ctx, terminated by AV_PIX_FMT_NONE. More...

enum AVPixelFormat *	valid_sw_formats
	A list of possible values for sw_format in the hw_frames_ctx, terminated by AV_PIX_FMT_NONE. More...

int	min_width
	The minimum size of frames in this hw_frames_ctx. More...

int	min_height

int	max_width
	The maximum size of frames in this hw_frames_ctx. More...

int	max_height

Detailed Description

This struct describes the constraints on hardware frames attached to a given device with a hardware-specific configuration.

This is returned by av_hwdevice_get_hwframe_constraints() and must be freed by av_hwframe_constraints_free() after use.

Definition at line 453 of file hwcontext.h.

Field Documentation

◆ valid_hw_formats

enum AVPixelFormat* AVHWFramesConstraints::valid_hw_formats

A list of possible values for format in the hw_frames_ctx, terminated by AV_PIX_FMT_NONE.

This member will always be filled.

Definition at line 458 of file hwcontext.h.

Referenced by cuda_frames_get_constraints(), d3d11va_frames_get_constraints(), hwupload_query_formats(), opencl_frames_get_constraints(), qsv_frames_get_constraints(), vaapi_frames_get_constraints(), vdpau_frames_get_constraints(), and vulkan_frames_get_constraints().

◆ valid_sw_formats

enum AVPixelFormat* AVHWFramesConstraints::valid_sw_formats

A list of possible values for sw_format in the hw_frames_ctx, terminated by AV_PIX_FMT_NONE.

Can be NULL if this information is not known.

Definition at line 465 of file hwcontext.h.

Referenced by cuda_frames_get_constraints(), d3d11va_frames_get_constraints(), ff_vaapi_vpp_config_output(), hwupload_query_formats(), opencl_frames_get_constraints(), qsv_frames_get_constraints(), vaapi_decode_make_config(), vaapi_encode_create_recon_frames(), vaapi_frames_get_constraints(), vdpau_frames_get_constraints(), and vulkan_frames_get_constraints().

◆ min_width

int AVHWFramesConstraints::min_width

The minimum size of frames in this hw_frames_ctx.

(Zero if not known.)

Definition at line 471 of file hwcontext.h.

Referenced by ff_vaapi_vpp_config_output(), vaapi_decode_make_config(), vaapi_encode_create_recon_frames(), vaapi_frames_get_constraints(), and vulkan_frames_get_constraints().

◆ min_height

int AVHWFramesConstraints::min_height

Definition at line 472 of file hwcontext.h.

Referenced by ff_vaapi_vpp_config_output(), vaapi_decode_make_config(), vaapi_encode_create_recon_frames(), vaapi_frames_get_constraints(), and vulkan_frames_get_constraints().

◆ max_width

int AVHWFramesConstraints::max_width

The maximum size of frames in this hw_frames_ctx.

(INT_MAX if not known / no limit.)

Definition at line 478 of file hwcontext.h.

Referenced by ff_vaapi_vpp_config_output(), opencl_frames_get_constraints(), vaapi_decode_make_config(), vaapi_encode_create_recon_frames(), vaapi_frames_get_constraints(), and vulkan_frames_get_constraints().

◆ max_height

int AVHWFramesConstraints::max_height

Definition at line 479 of file hwcontext.h.

Referenced by ff_vaapi_vpp_config_output(), opencl_frames_get_constraints(), vaapi_decode_make_config(), vaapi_encode_create_recon_frames(), vaapi_frames_get_constraints(), and vulkan_frames_get_constraints().

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

libavutil/hwcontext.h