AVHWFramesConstraints Struct Reference

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 366 of file hwcontext.h.

Field Documentation

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 371 of file hwcontext.h.

Referenced by hwupload_query_formats(), qsv_frames_get_constraints(), and vaapi_frames_get_constraints().

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 378 of file hwcontext.h.

Referenced by ff_vaapi_encode_init(), hwupload_query_formats(), qsv_frames_get_constraints(), scale_vaapi_config_output(), vaapi_build_decoder_config(), and vaapi_frames_get_constraints().

int AVHWFramesConstraints::min_width

The minimum size of frames in this hw_frames_ctx.

(Zero if not known.)

Definition at line 384 of file hwcontext.h.

Referenced by ff_vaapi_encode_init(), scale_vaapi_config_output(), vaapi_build_decoder_config(), and vaapi_frames_get_constraints().

int AVHWFramesConstraints::min_height

Definition at line 385 of file hwcontext.h.

Referenced by ff_vaapi_encode_init(), scale_vaapi_config_output(), vaapi_build_decoder_config(), and vaapi_frames_get_constraints().

int AVHWFramesConstraints::max_width

The maximum size of frames in this hw_frames_ctx.

(INT_MAX if not known / no limit.)

Definition at line 391 of file hwcontext.h.

Referenced by ff_vaapi_encode_init(), scale_vaapi_config_output(), vaapi_build_decoder_config(), and vaapi_frames_get_constraints().

int AVHWFramesConstraints::max_height

Definition at line 392 of file hwcontext.h.

Referenced by ff_vaapi_encode_init(), scale_vaapi_config_output(), vaapi_build_decoder_config(), and vaapi_frames_get_constraints().

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

• libavutil/hwcontext.h