VDPAU
Data Fields
VdpPictureInfoH264 Struct Reference

Picture parameter information for an H.264 picture. More...

#include <vdpau.h>

Data Fields

uint32_t slice_count
 
int32_t field_order_cnt [2]
 
VdpBool is_reference
 
uint16_t frame_num
 
uint8_t field_pic_flag
 
uint8_t bottom_field_flag
 
uint8_t num_ref_frames
 
uint8_t mb_adaptive_frame_field_flag
 
uint8_t constrained_intra_pred_flag
 
uint8_t weighted_pred_flag
 
uint8_t weighted_bipred_idc
 
uint8_t frame_mbs_only_flag
 
uint8_t transform_8x8_mode_flag
 
int8_t chroma_qp_index_offset
 
int8_t second_chroma_qp_index_offset
 
int8_t pic_init_qp_minus26
 
uint8_t num_ref_idx_l0_active_minus1
 
uint8_t num_ref_idx_l1_active_minus1
 
uint8_t log2_max_frame_num_minus4
 
uint8_t pic_order_cnt_type
 
uint8_t log2_max_pic_order_cnt_lsb_minus4
 
uint8_t delta_pic_order_always_zero_flag
 
uint8_t direct_8x8_inference_flag
 
uint8_t entropy_coding_mode_flag
 
uint8_t pic_order_present_flag
 
uint8_t deblocking_filter_control_present_flag
 
uint8_t redundant_pic_cnt_present_flag
 
uint8_t scaling_lists_4x4 [6][16]
 
uint8_t scaling_lists_8x8 [2][64]
 
VdpReferenceFrameH264 referenceFrames [16]
 

Detailed Description

Picture parameter information for an H.264 picture.

Note: The referenceFrames array must contain the "DPB" as defined by the H.264 specification. In particular, once a reference frame has been decoded to a surface, that surface must continue to appear in the DPB until no longer required to predict any future frame. Once a surface is removed from the DPB, it can no longer be used as a reference, unless decoded again.

Also note that only surfaces previously generated using VdpDecoderRender may be used as reference frames. In particular, surfaces filled using any "put bits" API will not work.

Note: References to "copy of bitstream field" in the field descriptions may refer to data literally parsed from the bitstream, or derived from the bitstream using a mechanism described in the specification.

Field Documentation

uint8_t VdpPictureInfoH264::bottom_field_flag

Copy of the H.264 bitstream field.

int8_t VdpPictureInfoH264::chroma_qp_index_offset

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::constrained_intra_pred_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::deblocking_filter_control_present_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::delta_pic_order_always_zero_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::direct_8x8_inference_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::entropy_coding_mode_flag

Copy of the H.264 bitstream field.

int32_t VdpPictureInfoH264::field_order_cnt[2]

[0]: top, [1]: bottom

uint8_t VdpPictureInfoH264::field_pic_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::frame_mbs_only_flag

Copy of the H.264 bitstream field.

uint16_t VdpPictureInfoH264::frame_num

Copy of the H.264 bitstream field.

VdpBool VdpPictureInfoH264::is_reference

Will the decoded frame be used as a reference later.

uint8_t VdpPictureInfoH264::log2_max_frame_num_minus4

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::log2_max_pic_order_cnt_lsb_minus4

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::mb_adaptive_frame_field_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::num_ref_frames

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::num_ref_idx_l0_active_minus1

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::num_ref_idx_l1_active_minus1

Copy of the H.264 bitstream field.

int8_t VdpPictureInfoH264::pic_init_qp_minus26

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::pic_order_cnt_type

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::pic_order_present_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::redundant_pic_cnt_present_flag

Copy of the H.264 bitstream field.

VdpReferenceFrameH264 VdpPictureInfoH264::referenceFrames[16]

See VdpPictureInfoH264 for instructions regarding this field.

uint8_t VdpPictureInfoH264::scaling_lists_4x4[6][16]

Copy of the H.264 bitstream field, converted to raster order.

uint8_t VdpPictureInfoH264::scaling_lists_8x8[2][64]

Copy of the H.264 bitstream field, converted to raster order.

int8_t VdpPictureInfoH264::second_chroma_qp_index_offset

Copy of the H.264 bitstream field.

uint32_t VdpPictureInfoH264::slice_count

Number of slices in the bitstream provided.

uint8_t VdpPictureInfoH264::transform_8x8_mode_flag

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::weighted_bipred_idc

Copy of the H.264 bitstream field.

uint8_t VdpPictureInfoH264::weighted_pred_flag

Copy of the H.264 bitstream field.


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