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/*
** Copyright (c) 2019-2020 The Khronos Group Inc.
**
** SPDX-License-Identifier: Apache-2.0
*/
#ifndef VULKAN_VIDEO_CODEC_H264STD_DECODE_H_
#define VULKAN_VIDEO_CODEC_H264STD_DECODE_H_ 1
#ifdef __cplusplus
extern "C" {
#endif
#include "vk_video/vulkan_video_codec_h264std.h"
// *************************************************
// Video H.264 Decode related parameters:
// *************************************************
#define STD_VIDEO_DECODE_H264_MVC_REF_LIST_SIZE 15
typedef enum StdVideoDecodeH264FieldOrderCount {
STD_VIDEO_DECODE_H264_FIELD_ORDER_COUNT_TOP = 0,
STD_VIDEO_DECODE_H264_FIELD_ORDER_COUNT_BOTTOM = 1,
STD_VIDEO_DECODE_H264_FIELD_ORDER_COUNT_LIST_SIZE = 2,
STD_VIDEO_DECODE_H264_FIELD_ORDER_COUNT_INVALID = 0x7FFFFFFF
} StdVideoDecodeH264FieldOrderCnt;
typedef struct StdVideoDecodeH264PictureInfoFlags {
uint32_t field_pic_flag : 1; // Is field picture
uint32_t is_intra : 1; // Is intra picture
uint32_t IdrPicFlag : 1; // instantaneous decoding refresh (IDR) picture
uint32_t bottom_field_flag : 1; // bottom (true) or top (false) field if field_pic_flag is set.
uint32_t is_reference : 1; // This only applies to picture info, and not to the DPB lists.
uint32_t complementary_field_pair : 1; // complementary field pair, complementary non-reference field pair, complementary reference field pair
} StdVideoDecodeH264PictureInfoFlags;
typedef struct StdVideoDecodeH264PictureInfo {
uint8_t seq_parameter_set_id; // Selecting SPS from the Picture Parameters
uint8_t pic_parameter_set_id; // Selecting PPS from the Picture Parameters and the SPS
uint16_t reserved; // for structure members 32-bit packing/alignment
uint16_t frame_num; // 7.4.3 Slice header semantics
uint16_t idr_pic_id; // 7.4.3 Slice header semantics
// PicOrderCnt is based on TopFieldOrderCnt and BottomFieldOrderCnt. See 8.2.1 Decoding process for picture order count type 0 - 2
int32_t PicOrderCnt[STD_VIDEO_DECODE_H264_FIELD_ORDER_COUNT_LIST_SIZE]; // TopFieldOrderCnt and BottomFieldOrderCnt fields.
StdVideoDecodeH264PictureInfoFlags flags;
} StdVideoDecodeH264PictureInfo;
typedef struct StdVideoDecodeH264ReferenceInfoFlags {
uint32_t top_field_flag : 1; // Reference is used for top field reference.
uint32_t bottom_field_flag : 1; // Reference is used for bottom field reference.
uint32_t is_long_term : 1; // this is a long term reference
uint32_t is_non_existing : 1; // Must be handled in accordance with 8.2.5.2: Decoding process for gaps in frame_num
} StdVideoDecodeH264ReferenceInfoFlags;
typedef struct StdVideoDecodeH264ReferenceInfo {
// FrameNum = is_long_term ? long_term_frame_idx : frame_num
uint16_t FrameNum; // 7.4.3.3 Decoded reference picture marking semantics
uint16_t reserved; // for structure members 32-bit packing/alignment
int32_t PicOrderCnt[2]; // TopFieldOrderCnt and BottomFieldOrderCnt fields.
StdVideoDecodeH264ReferenceInfoFlags flags;
} StdVideoDecodeH264ReferenceInfo;
typedef struct StdVideoDecodeH264MvcElementFlags {
uint32_t non_idr : 1;
uint32_t anchor_pic : 1;
uint32_t inter_view : 1;
} StdVideoDecodeH264MvcElementFlags;
typedef struct StdVideoDecodeH264MvcElement {
StdVideoDecodeH264MvcElementFlags flags;
uint16_t viewOrderIndex;
uint16_t viewId;
uint16_t temporalId; // move out?
uint16_t priorityId; // move out?
uint16_t numOfAnchorRefsInL0;
uint16_t viewIdOfAnchorRefsInL0[STD_VIDEO_DECODE_H264_MVC_REF_LIST_SIZE];
uint16_t numOfAnchorRefsInL1;
uint16_t viewIdOfAnchorRefsInL1[STD_VIDEO_DECODE_H264_MVC_REF_LIST_SIZE];
uint16_t numOfNonAnchorRefsInL0;
uint16_t viewIdOfNonAnchorRefsInL0[STD_VIDEO_DECODE_H264_MVC_REF_LIST_SIZE];
uint16_t numOfNonAnchorRefsInL1;
uint16_t viewIdOfNonAnchorRefsInL1[STD_VIDEO_DECODE_H264_MVC_REF_LIST_SIZE];
} StdVideoDecodeH264MvcElement;
typedef struct StdVideoDecodeH264Mvc {
uint32_t viewId0;
uint32_t mvcElementCount;
StdVideoDecodeH264MvcElement* pMvcElements;
} StdVideoDecodeH264Mvc;
#ifdef __cplusplus
}
#endif
#endif // VULKAN_VIDEO_CODEC_H264STD_DECODE_H_
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