Add missing vulkan_video_codec_h265std_encode.h
diff --git a/include/vk_video/vulkan_video_codec_h265std_encode.h b/include/vk_video/vulkan_video_codec_h265std_encode.h
new file mode 100644
index 0000000..e560b1e
--- /dev/null
+++ b/include/vk_video/vulkan_video_codec_h265std_encode.h
@@ -0,0 +1,117 @@
+/*
+** Copyright (c) 2019-2021 The Khronos Group Inc.
+**
+** SPDX-License-Identifier: Apache-2.0
+*/
+
+#ifndef VULKAN_VIDEO_CODEC_H265STD_ENCODE_H_
+#define VULKAN_VIDEO_CODEC_H265STD_ENCODE_H_ 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "vk_video/vulkan_video_codec_h265std.h"
+
+// *************************************************
+// Video h265 Encode related parameters:
+// *************************************************
+
+typedef struct StdVideoEncodeH265SliceHeaderFlags {
+    uint32_t first_slice_segment_in_pic_flag : 1;
+    uint32_t no_output_of_prior_pics_flag : 1;
+    uint32_t dependent_slice_segment_flag : 1;
+    uint32_t short_term_ref_pic_set_sps_flag : 1;
+    uint32_t slice_temporal_mvp_enable_flag : 1;
+    uint32_t slice_sao_luma_flag : 1;
+    uint32_t slice_sao_chroma_flag : 1;
+    uint32_t num_ref_idx_active_override_flag : 1;
+    uint32_t mvd_l1_zero_flag : 1;
+    uint32_t cabac_init_flag : 1;
+    uint32_t slice_deblocking_filter_disable_flag : 1;
+    uint32_t collocated_from_l0_flag : 1;
+    uint32_t slice_loop_filter_across_slices_enabled_flag : 1;
+    uint32_t bLastSliceInPic : 1;
+    uint16_t luma_weight_l0_flag;   // bit 0 - num_ref_idx_l0_active_minus1
+    uint16_t chroma_weight_l0_flag; // bit 0 - num_ref_idx_l0_active_minus1
+    uint16_t luma_weight_l1_flag;   // bit 0 - num_ref_idx_l1_active_minus1
+    uint16_t chroma_weight_l1_flag; // bit 0 - num_ref_idx_l1_active_minus1
+} StdVideoEncodeH265SliceHeaderFlags;
+
+typedef struct StdVideoEncodeH265SliceHeader {
+    StdVideoH265SliceType              slice_type;
+    uint8_t                            slice_pic_parameter_set_id;
+    uint8_t                            num_short_term_ref_pic_sets;
+    uint32_t                           slice_segment_address;
+    uint8_t                            short_term_ref_pic_set_idx;
+    uint8_t                            num_long_term_sps;
+    uint8_t                            num_long_term_pics;
+    uint8_t                            collocated_ref_idx;
+    uint8_t                            num_ref_idx_l0_active_minus1; // [0, 14]
+    uint8_t                            num_ref_idx_l1_active_minus1; // [0, 14]
+    uint8_t                            luma_log2_weight_denom;       // [0, 7]
+    int8_t                             delta_chroma_log2_weight_denom;
+    int8_t                             delta_luma_weight_l0[15];
+    int8_t                             luma_offset_l0[15];
+    int8_t                             delta_chroma_weight_l0[15][2];
+    int8_t                             delta_chroma_offset_l0[15][2];
+    int8_t                             delta_luma_weight_l1[15];
+    int8_t                             luma_offset_l1[15];
+    int8_t                             delta_chroma_weight_l1[15][2];
+    int8_t                             delta_chroma_offset_l1[15][2];
+    uint8_t                            MaxNumMergeCand;
+    int8_t                             slice_qp_delta;
+    int8_t                             slice_cb_qp_offset;         // [-12, 12]
+    int8_t                             slice_cr_qp_offset;         // [-12, 12]
+    int8_t                             slice_beta_offset_div2;    // [-6, 6]
+    int8_t                             slice_tc_offset_div2;       // [-6, 6]
+    int8_t                             slice_act_y_qp_offset;
+    int8_t                             slice_act_cb_qp_offset;
+    int8_t                             slice_act_cr_qp_offset;
+    StdVideoEncodeH265SliceHeaderFlags flags;
+} StdVideoEncodeH265SliceHeader;
+
+typedef struct StdVideoEncodeH265ReferenceModificationFlags {
+    uint32_t ref_pic_list_modification_flag_l0 : 1;
+    uint32_t ref_pic_list_modification_flag_l1 : 1;
+} StdVideoEncodeH265ReferenceModificationFlags;
+
+typedef struct StdVideoEncodeH265ReferenceModifications {
+    StdVideoEncodeH265ReferenceModificationFlags flags;
+    uint8_t                                      referenceList0ModificationsCount; // num_ref_idx_l0_active_minus1
+    uint8_t*                                     pReferenceList0Modifications;     // list_entry_l0
+    uint8_t                                      referenceList1ModificationsCount; // num_ref_idx_l1_active_minus1
+    uint8_t*                                     pReferenceList1Modifications;     // list_entry_l1
+} StdVideoEncodeH265ReferenceModifications;
+
+typedef struct StdVideoEncodeH265PictureInfoFlags {
+    uint32_t is_reference_flag : 1;
+    uint32_t IrapPicFlag : 1;
+    uint32_t long_term_flag : 1;
+} StdVideoEncodeH265PictureInfoFlags;
+
+typedef struct StdVideoEncodeH265PictureInfo {
+    StdVideoH265PictureType            PictureType;
+    uint8_t                            sps_video_parameter_set_id;
+    uint8_t                            pps_seq_parameter_set_id;
+    int32_t                            PicOrderCntVal;
+    uint8_t                            TemporalId;
+    StdVideoEncodeH265PictureInfoFlags flags;
+} StdVideoEncodeH265PictureInfo;
+
+typedef struct StdVideoEncodeH265ReferenceInfoFlags {
+    uint32_t is_long_term : 1;
+    uint32_t isUsedFlag : 1;
+} StdVideoEncodeH265ReferenceInfoFlags;
+
+typedef struct StdVideoEncodeH265ReferenceInfo {
+    int32_t                              PicOrderCntVal;
+    uint8_t                              TemporalId;
+    StdVideoEncodeH265ReferenceInfoFlags flags;
+} StdVideoEncodeH265ReferenceInfo;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // VULKAN_VIDEO_CODEC_H265STD_ENCODE_H_