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NS:d3d12umddi.D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_QVBR_0080_2 |
display |
D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_QVBR_0080_2 |
02/16/2022 |
Windows |
Learn more about the D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_QVBR_0080_2 structure. |
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structure |
d3d12umddi.h |
Windows 11 (WDDM 3.0) |
D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_QVBR_0080_2 |
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The D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_QVBR_0080_2 structure contains the rate control definition for constant quality target with constrained bitrate.
When the D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_FLAG_0080_ENABLE_INITIAL_QP flag is set, InitialQP can be used by the rate control algorithm.
When the D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_FLAG_0080_ENABLE_QP_RANGE flag is set, MinQP limits the quantization parameter (QP) range of the rate control algorithm.
When the D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_FLAG_0080_ENABLE_QP_RANGE flag is set, MaxQP limits the QP range of the rate control algorithm.
Maximum size for each frame to be encoded, in bits. When D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_FLAG_0080_ENABLE_MAX_FRAME_SIZE is set, MaxFrameBitSize limits each frame's maximum size in the rate control algorithm.
Average bitrate to be used, in bits per second.
Maximum bitrate that can be reached, in bits per second.
Indicates the quality level. Values are codec-specific as each standard defines the range for this argument (for example, H.264 / HEVC 0-51, et cetera).
See D3D12 video encoding for general information.
D3D12DDI_VIDEO_ENCODER_RATE_CONTROL_CONFIGURATION_PARAMS_0080_2