D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAGS_0083_0 enumeration (d3d12umddi.h)

The D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAGS_0083_0 enumeration reports the support for a given configuration.

Syntax

typedef enum D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAGS_0083_0 {
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_NONE = 0x00,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_GENERAL_SUPPORT_OK = 0x01,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_RECONFIGURATION_AVAILABLE = 0x02,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RESOLUTION_RECONFIGURATION_AVAILABLE = 0x04,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_VBV_SIZE_CONFIG_AVAILABLE = 0x08,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_FRAME_ANALYSIS_AVAILABLE = 0x10,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS = 0x20,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_DELTA_QP_AVAILABLE = 0x40,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_SUBREGION_LAYOUT_RECONFIGURATION_AVAILABLE = 0x80,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_ADJUSTABLE_QP_RANGE_AVAILABLE = 0x100,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_INITIAL_QP_AVAILABLE = 0x200,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_MAX_FRAME_SIZE_AVAILABLE = 0x400,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_SEQUENCE_GOP_RECONFIGURATION_AVAILABLE = 0x800,
  D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_MOTION_ESTIMATION_PRECISION_MODE_LIMIT_AVAILABLE = 
} ;

Constants

D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_NONE Value: 0x00 No flags are set (indicates no support).
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_GENERAL_SUPPORT_OK Value: 0x01 Indicates whether the given configuration is generally supported by the encoder, in combination with the remaining flags to convey certain limitations or no general support. The D3D12 Debug layer can provide further information.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_RECONFIGURATION_AVAILABLE Value: 0x02 Indicates support for changing the rate control in the middle of the encoding session.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RESOLUTION_RECONFIGURATION_AVAILABLE Value: 0x04 Indicates support for changing the resolution in the middle of the encoding session.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_VBV_SIZE_CONFIG_AVAILABLE Value: 0x08 When set, enables configuring the video buffering verifier (VBV) initial fullness and capacity for rate control algorithms.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_FRAME_ANALYSIS_AVAILABLE Value: 0x10 Indicates support for rate control modes that involve frame analysis to optimize the bitrate usage at the cost of slower performance.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS Value: 0x20 When set, textures that refer reconstructed pictures can only be referenced as a texture array, as opposed to an array of separate texture 2D resources with each resource having array size of 1. When this capability is not required, there is more flexibility for the host. This is important for scenarios where the resolution changes frequently and the decoded picture buffer (DPB) needs to be flushed for an instantaneous decoder refresh (IDR) frame, because a texture array can only be allocated and deallocated as an single unit, but separate texture 2D resources can be allocated and deallocated individually.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_DELTA_QP_AVAILABLE Value: 0x40 Indicates support for delta quantization parameter (QP) usage in rate control.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_SUBREGION_LAYOUT_RECONFIGURATION_AVAILABLE Value: 0x80 Indicates support for dynamic subregion layout changes during an encoding session.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_ADJUSTABLE_QP_RANGE_AVAILABLE Value: 0x100 Indicates support for adjustable QP range in rate control.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_INITIAL_QP_AVAILABLE Value: 0x200 Indicates support for adjustable initial QP in rate control.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_RATE_CONTROL_MAX_FRAME_SIZE_AVAILABLE Value: 0x400 Indicates support for setting a maximum cap in the bitrate algorithm per each encoded frame.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_SEQUENCE_GOP_RECONFIGURATION_AVAILABLE Value: 0x800 Indicates support for dynamic group of pictures (GOP) changes during an encoding session.
D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_MOTION_ESTIMATION_PRECISION_MODE_LIMIT_AVAILABLE If the driver sets this bit, the user can limit the precision used for motion search on frame encode.

Remarks

When set, D3D12DDI_VIDEO_ENCODER_SUPPORT_FLAG_0083_0_GENERAL_SUPPORT_OK indicates general support, which is defined as follows:

• There is support to allocate all buffers with D3D12_MEMORY_POOL_L0. This is always system memory, but still a D3D12 buffer.

• There is support to allocate all buffers with D3D12_MEMORY_POOL_L1, the default pool, including those allocated with D3D12DDI_CPU_PAGE_PROPERTY_NOT_AVAILABLE.

The rest of the flags are combined to convey further information.

See D3D12 video encoding for general information.

Requirements

Requirement	Value
Minimum supported client	Windows 11 (WDDM 3.0)
Header	d3d12umddi.h

See also

D3D12DDIARG_VIDEO_GETCAPS_0020

D3D12DDICAPS_VIDEO_ENCODER_SUPPORT_DATA_0083_0