API-specific header for AV_HWDEVICE_TYPE_DRM. More...

#include <stddef.h>
#include <stdint.h>

Classes
struct	AVDRMObjectDescriptor
	DRM object descriptor. More...

struct	AVDRMPlaneDescriptor
	DRM plane descriptor. More...

struct	AVDRMLayerDescriptor
	DRM layer descriptor. More...

struct	AVDRMFrameDescriptor
	DRM frame descriptor. More...

struct	AVDRMDeviceContext
	DRM device. More...

Typedefs
typedef struct AVDRMObjectDescriptor	AVDRMObjectDescriptor
	DRM object descriptor. More...

typedef struct AVDRMPlaneDescriptor	AVDRMPlaneDescriptor
	DRM plane descriptor. More...

typedef struct AVDRMLayerDescriptor	AVDRMLayerDescriptor
	DRM layer descriptor. More...

typedef struct AVDRMFrameDescriptor	AVDRMFrameDescriptor
	DRM frame descriptor. More...

typedef struct AVDRMDeviceContext	AVDRMDeviceContext
	DRM device. More...

Enumerations
enum	{ AV_DRM_MAX_PLANES = 4 }

Detailed Description

API-specific header for AV_HWDEVICE_TYPE_DRM.

Internal frame allocation is not currently supported - all frames must be allocated by the user. Thus AVHWFramesContext is always NULL, though this may change if support for frame allocation is added in future.

Typedef Documentation

§ AVDRMDeviceContext

typedef struct AVDRMDeviceContext AVDRMDeviceContext

DRM device.

Allocated as AVHWDeviceContext.hwctx.

§ AVDRMFrameDescriptor

typedef struct AVDRMFrameDescriptor AVDRMFrameDescriptor

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.

§ AVDRMLayerDescriptor

typedef struct AVDRMLayerDescriptor AVDRMLayerDescriptor

DRM layer descriptor.

Describes a single layer within a frame. This has the structure defined by its format, and will contain one or more planes.

§ AVDRMObjectDescriptor

typedef struct AVDRMObjectDescriptor AVDRMObjectDescriptor

DRM object descriptor.

Describes a single DRM object, addressing it as a PRIME file descriptor.

§ AVDRMPlaneDescriptor

typedef struct AVDRMPlaneDescriptor AVDRMPlaneDescriptor

DRM plane descriptor.

Describes a single plane of a layer, which is contained within a single object.

Enumeration Type Documentation

§ anonymous enum

anonymous enum

Enumerator
AV_DRM_MAX_PLANES	The maximum number of layers/planes in a DRM frame.

Classes

Typedefs

Enumerations