FFmpeg
Data Fields
AVDRMFrameDescriptor Struct Reference

DRM frame descriptor. More...

#include <hwcontext_drm.h>

Data Fields

int nb_objects
 Number of DRM objects making up this frame. More...
 
AVDRMObjectDescriptor objects [AV_DRM_MAX_PLANES]
 Array of objects making up the frame. More...
 
int nb_layers
 Number of layers in the frame. More...
 
AVDRMLayerDescriptor layers [AV_DRM_MAX_PLANES]
 Array of layers in the frame. More...
 

Detailed Description

DRM frame descriptor.

This is used as the data pointer for AV_PIX_FMT_DRM_PRIME frames. It is also used by user-allocated frame pools - allocating in AVHWFramesContext.pool must return AVBufferRefs which contain an object of this type.

The fields of this structure should be set such it can be imported directly by EGL using the EGL_EXT_image_dma_buf_import and EGL_EXT_image_dma_buf_import_modifiers extensions. (Note that the exact layout of a particular format may vary between platforms - we only specify that the same platform should be able to import it.)

The total number of planes must not exceed AV_DRM_MAX_PLANES, and the order of the planes by increasing layer index followed by increasing plane index must be the same as the order which would be used for the data pointers in the equivalent software format.

Definition at line 133 of file hwcontext_drm.h.

Field Documentation

int AVDRMFrameDescriptor::nb_objects

Number of DRM objects making up this frame.

Definition at line 137 of file hwcontext_drm.h.

Referenced by drm_map_frame(), kmsgrab_read_packet(), and vaapi_map_to_memory().

AVDRMObjectDescriptor AVDRMFrameDescriptor::objects[AV_DRM_MAX_PLANES]

Array of objects making up the frame.

Definition at line 141 of file hwcontext_drm.h.

Referenced by drm_map_frame(), kmsgrab_free_desc(), opencl_map_frame(), and vaapi_map_to_memory().

int AVDRMFrameDescriptor::nb_layers

Number of layers in the frame.

Definition at line 145 of file hwcontext_drm.h.

Referenced by drm_map_frame(), opencl_map_frame(), and vaapi_map_to_memory().

AVDRMLayerDescriptor AVDRMFrameDescriptor::layers[AV_DRM_MAX_PLANES]

Array of layers in the frame.

Definition at line 149 of file hwcontext_drm.h.

Referenced by drm_map_frame(), opencl_map_frame(), and vaapi_map_to_memory().


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