C Specification
Bits which may be set in
VkVideoEncodeH264CapabilitiesEXT::flags, indicating the encoding
tools supported, are:
// Provided by VK_EXT_video_encode_h264
typedef enum VkVideoEncodeH264CapabilityFlagBitsEXT {
VK_VIDEO_ENCODE_H264_CAPABILITY_DIRECT_8X8_INFERENCE_ENABLED_BIT_EXT = 0x00000001,
VK_VIDEO_ENCODE_H264_CAPABILITY_DIRECT_8X8_INFERENCE_DISABLED_BIT_EXT = 0x00000002,
VK_VIDEO_ENCODE_H264_CAPABILITY_SEPARATE_COLOUR_PLANE_BIT_EXT = 0x00000004,
VK_VIDEO_ENCODE_H264_CAPABILITY_QPPRIME_Y_ZERO_TRANSFORM_BYPASS_BIT_EXT = 0x00000008,
VK_VIDEO_ENCODE_H264_CAPABILITY_SCALING_LISTS_BIT_EXT = 0x00000010,
VK_VIDEO_ENCODE_H264_CAPABILITY_HRD_COMPLIANCE_BIT_EXT = 0x00000020,
VK_VIDEO_ENCODE_H264_CAPABILITY_CHROMA_QP_OFFSET_BIT_EXT = 0x00000040,
VK_VIDEO_ENCODE_H264_CAPABILITY_SECOND_CHROMA_QP_OFFSET_BIT_EXT = 0x00000080,
VK_VIDEO_ENCODE_H264_CAPABILITY_PIC_INIT_QP_MINUS26_BIT_EXT = 0x00000100,
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_PRED_BIT_EXT = 0x00000200,
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_BIPRED_EXPLICIT_BIT_EXT = 0x00000400,
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_BIPRED_IMPLICIT_BIT_EXT = 0x00000800,
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_PRED_NO_TABLE_BIT_EXT = 0x00001000,
VK_VIDEO_ENCODE_H264_CAPABILITY_TRANSFORM_8X8_BIT_EXT = 0x00002000,
VK_VIDEO_ENCODE_H264_CAPABILITY_CABAC_BIT_EXT = 0x00004000,
VK_VIDEO_ENCODE_H264_CAPABILITY_CAVLC_BIT_EXT = 0x00008000,
VK_VIDEO_ENCODE_H264_CAPABILITY_DEBLOCKING_FILTER_DISABLED_BIT_EXT = 0x00010000,
VK_VIDEO_ENCODE_H264_CAPABILITY_DEBLOCKING_FILTER_ENABLED_BIT_EXT = 0x00020000,
VK_VIDEO_ENCODE_H264_CAPABILITY_DEBLOCKING_FILTER_PARTIAL_BIT_EXT = 0x00040000,
VK_VIDEO_ENCODE_H264_CAPABILITY_DISABLE_DIRECT_SPATIAL_MV_PRED_BIT_EXT = 0x00080000,
VK_VIDEO_ENCODE_H264_CAPABILITY_MULTIPLE_SLICE_PER_FRAME_BIT_EXT = 0x00100000,
VK_VIDEO_ENCODE_H264_CAPABILITY_SLICE_MB_COUNT_BIT_EXT = 0x00200000,
VK_VIDEO_ENCODE_H264_CAPABILITY_ROW_UNALIGNED_SLICE_BIT_EXT = 0x00400000,
VK_VIDEO_ENCODE_H264_CAPABILITY_DIFFERENT_SLICE_TYPE_BIT_EXT = 0x00800000,
VK_VIDEO_ENCODE_H264_CAPABILITY_B_FRAME_IN_L1_LIST_BIT_EXT = 0x01000000,
} VkVideoEncodeH264CapabilityFlagBitsEXT;
Description
-
VK_VIDEO_ENCODE_H264_CAPABILITY_DIRECT_8X8_INFERENCE_ENABLED_BIT_EXTreports if enabling direct_8x8_inference_flag in StdVideoH264SpsFlags is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_DIRECT_8X8_INFERENCE_DISABLED_BIT_EXTreports if disabling direct_8x8_inference_flag in StdVideoH264SpsFlags is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_SEPARATE_COLOUR_PLANE_BIT_EXTreports if enabling separate_colour_plane_flag in StdVideoH264SpsFlags is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_QPPRIME_Y_ZERO_TRANSFORM_BYPASS_BIT_EXTreports if enabling qpprime_y_zero_transform_bypass_flag in StdVideoH264SpsFlags is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_SCALING_LISTS_BIT_EXTreports if enabling seq_scaling_matrix_present_flag in StdVideoH264SpsFlags or pic_scaling_matrix_present_flag in StdVideoH264PpsFlags are supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_HRD_COMPLIANCE_BIT_EXTreports if the implementation guarantees generating a HRD compliant bitstream if nal_hrd_parameters_present_flag or vcl_hrd_parameters_present_flag are enabled in StdVideoH264SpsVuiFlags. -
VK_VIDEO_ENCODE_H264_CAPABILITY_CHROMA_QP_OFFSET_BIT_EXTreports if setting non-zero chroma_qp_index_offset in StdVideoH264PictureParameterSet is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_SECOND_CHROMA_QP_OFFSET_BIT_EXTreports if setting non-zero second_chroma_qp_index_offset in StdVideoH264PictureParameterSet is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_PIC_INIT_QP_MINUS26_BIT_EXTreports if setting non-zero pic_init_qp_minus26 in StdVideoH264PictureParameterSet is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_PRED_BIT_EXTreports if enabling weighted_pred_flag in StdVideoH264PpsFlags is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_BIPRED_EXPLICIT_BIT_EXTreports if using STD_VIDEO_H264_WEIGHTED_BIPRED_IDC_EXPLICIT from StdVideoH264WeightedBipredIdc is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_BIPRED_IMPLICIT_BIT_EXTreports if using STD_VIDEO_H264_WEIGHTED_BIPRED_IDC_IMPLICIT from StdVideoH264WeightedBipredIdc is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_WEIGHTED_PRED_NO_TABLE_BIT_EXTreports that when weighted_pred_flag is enabled or STD_VIDEO_H264_WEIGHTED_BIPRED_IDC_EXPLICIT from StdVideoH264WeightedBipredIdc is used, the implementation is able to internally decide syntax for pred_weight_table. -
VK_VIDEO_ENCODE_H264_CAPABILITY_TRANSFORM_8X8_BIT_EXTreports if enabling transform_8x8_mode_flag in StdVideoH264PpsFlags is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_CABAC_BIT_EXTreports if CABAC entropy coding is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_CAVLC_BIT_EXTreports if CAVLC entropy coding is supported. An implementation must support at least one entropy coding mode. -
VK_VIDEO_ENCODE_H264_CAPABILITY_DEBLOCKING_FILTER_DISABLED_BIT_EXTreports if using STD_VIDEO_H264_DISABLE_DEBLOCKING_FILTER_IDC_DISABLED from StdVideoH264DisableDeblockingFilterIdc is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_DEBLOCKING_FILTER_ENABLED_BIT_EXTreports if using STD_VIDEO_H264_DISABLE_DEBLOCKING_FILTER_IDC_ENABLED from StdVideoH264DisableDeblockingFilterIdc is supported. -
VK_VIDEO_ENCODE_H264_CAPABILITY_DEBLOCKING_FILTER_PARTIAL_BIT_EXTreports if using STD_VIDEO_H264_DISABLE_DEBLOCKING_FILTER_IDC_PARTIAL from StdVideoH264DisableDeblockingFilterIdc is supported. An implementation must support at least one deblocking filter mode. -
VK_VIDEO_ENCODE_H264_CAPABILITY_DISABLE_DIRECT_SPATIAL_MV_PRED_BIT_EXTreports if disablingStdVideoEncodeH264SliceHeaderFlags::direct_spatial_mv_pred_flag is supported when it is present in the slice header. -
VK_VIDEO_ENCODE_H264_CAPABILITY_MULTIPLE_SLICE_PER_FRAME_BIT_EXTreports if encoding multiple slices per frame is supported. If not set, the implementation is only able to encode a single slice for the entire frame. -
VK_VIDEO_ENCODE_H264_CAPABILITY_SLICE_MB_COUNT_BIT_EXTreports support for configuring VkVideoEncodeH264NaluSliceEXT::mbCountand first_mb_in_slice in StdVideoEncodeH264SliceHeader for each slice in a frame with multiple slices. If not supported, the implementation decides the number of macroblocks in each slice based on VkVideoEncodeH264VclFrameInfoEXT::naluSliceEntryCount. -
VK_VIDEO_ENCODE_H264_CAPABILITY_ROW_UNALIGNED_SLICE_BIT_EXTreports that each slice in a frame with multiple slices may begin or finish at any offset in a macroblock row. If not supported, all slices in the frame must begin at the start of a macroblock row (and hence each slice must finish at the end of a macroblock row). -
VK_VIDEO_ENCODE_H264_CAPABILITY_DIFFERENT_SLICE_TYPE_BIT_EXTreports that whenVK_VIDEO_ENCODE_H264_CAPABILITY_MULTIPLE_SLICE_PER_FRAME_BIT_EXTis supported and a frame is encoded with multiple slices, the implementation allows encoding each slice with a differentStdVideoEncodeH264SliceHeader::slice_type. If not supported, all slices of the frame must be encoded with the sameslice_typewhich corresponds to the picture type of the frame. For example, all slices of a P-frame would be encoded as P-slices. -
VK_VIDEO_ENCODE_H264_CAPABILITY_B_FRAME_IN_L1_LIST_BIT_EXTreports support for using a B frame as L1 reference.
Document Notes
For more information, see the Vulkan Specification
This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.