--- /dev/null
+/*
+ * Copyright (c) 2014 Intel Corporation. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file va_dec_vp9.h
+ * \brief The VP9 decoding API
+ *
+ * This file contains the \ref api_dec_vp9 "VP9 decoding API".
+ */
+
+#ifndef VA_DEC_VP9_H
+#define VA_DEC_VP9_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \defgroup api_dec_vp9 VP9 decoding API
+ *
+ * This VP9 decoding API supports 8-bit 420 format only.
+ *
+ * @{
+ */
+
+
+
+
+/**
+ * \brief VP9 Decoding Picture Parameter Buffer Structure
+ *
+ * This structure conveys picture level parameters.
+ * App should send a surface with this data structure down to VAAPI once
+ * per frame.
+ *
+ */
+typedef struct _VADecPictureParameterBufferVP9
+{
+ /**@{*/
+
+ /** \brief picture width
+ * Picture original resolution. The value may not be multiple of 8.
+ */
+ uint16_t frame_width;
+ /** \brief picture height
+ * Picture original resolution. The value may not be multiple of 8.
+ */
+ uint16_t frame_height;
+
+ /** \brief Surface indices of reference frames in DPB.
+ *
+ * Each entry of the list specifies the surface index of the picture
+ * that is referred by current picture or will be referred by any future
+ * picture.
+ * Application who calls this API should update this list based on the
+ * refreshing information from VP9 bitstream.
+ */
+ VASurfaceID reference_frames[8];
+
+ union
+ {
+ struct
+ {
+ /** \brief flags for current picture
+ * same syntax and semantic as those in VP9 code
+ */
+ uint32_t subsampling_x : 1;
+ uint32_t subsampling_y : 1;
+ uint32_t frame_type : 1;
+ uint32_t show_frame : 1;
+ uint32_t error_resilient_mode : 1;
+ uint32_t intra_only : 1;
+ uint32_t allow_high_precision_mv : 1;
+ uint32_t mcomp_filter_type : 3;
+ uint32_t frame_parallel_decoding_mode : 1;
+ uint32_t reset_frame_context : 2;
+ uint32_t refresh_frame_context : 1;
+ uint32_t frame_context_idx : 2;
+ uint32_t segmentation_enabled : 1;
+
+ /** \brief corresponds to variable temporal_update in VP9 code.
+ */
+ uint32_t segmentation_temporal_update : 1;
+ /** \brief corresponds to variable update_mb_segmentation_map
+ * in VP9 code.
+ */
+ uint32_t segmentation_update_map : 1;
+
+ /** \brief Index of reference_frames[] and points to the
+ * LAST reference frame.
+ * It corresponds to active_ref_idx[0] in VP9 code.
+ */
+ uint32_t last_ref_frame : 3;
+ /** \brief Sign Bias of the LAST reference frame.
+ * It corresponds to ref_frame_sign_bias[LAST_FRAME] in VP9 code.
+ */
+ uint32_t last_ref_frame_sign_bias : 1;
+ /** \brief Index of reference_frames[] and points to the
+ * GOLDERN reference frame.
+ * It corresponds to active_ref_idx[1] in VP9 code.
+ */
+ uint32_t golden_ref_frame : 3;
+ /** \brief Sign Bias of the GOLDERN reference frame.
+ * Corresponds to ref_frame_sign_bias[GOLDERN_FRAME] in VP9 code.
+ */
+ uint32_t golden_ref_frame_sign_bias : 1;
+ /** \brief Index of reference_frames[] and points to the
+ * ALTERNATE reference frame.
+ * Corresponds to active_ref_idx[2] in VP9 code.
+ */
+ uint32_t alt_ref_frame : 3;
+ /** \brief Sign Bias of the ALTERNATE reference frame.
+ * Corresponds to ref_frame_sign_bias[ALTREF_FRAME] in VP9 code.
+ */
+ uint32_t alt_ref_frame_sign_bias : 1;
+ /** \brief Lossless Mode
+ * LosslessFlag = base_qindex == 0 &&
+ * y_dc_delta_q == 0 &&
+ * uv_dc_delta_q == 0 &&
+ * uv_ac_delta_q == 0;
+ * Where base_qindex, y_dc_delta_q, uv_dc_delta_q and uv_ac_delta_q
+ * are all variables in VP9 code.
+ */
+ uint32_t lossless_flag : 1;
+ } bits;
+ uint32_t value;
+ } pic_fields;
+
+ /* following parameters have same syntax with those in VP9 code */
+ uint8_t filter_level;
+ uint8_t sharpness_level;
+
+ /** \brief number of tile rows specified by (1 << log2_tile_rows).
+ * It corresponds the variable with same name in VP9 code.
+ */
+ uint8_t log2_tile_rows;
+ /** \brief number of tile columns specified by (1 << log2_tile_columns).
+ * It corresponds the variable with same name in VP9 code.
+ */
+ uint8_t log2_tile_columns;
+ /** \brief Number of bytes taken up by the uncompressed frame header,
+ * which corresponds to byte length of function
+ * read_uncompressed_header() in VP9 code.
+ * Specifically, it is the byte count from bit stream buffer start to
+ * the last byte of uncompressed frame header.
+ * If there are other meta data in the buffer before uncompressed header,
+ * its size should be also included here.
+ */
+ uint8_t frame_header_length_in_bytes;
+
+ /** \brief The byte count of compressed header the bitstream buffer,
+ * which corresponds to syntax first_partition_size in code.
+ */
+ uint16_t first_partition_size;
+
+ /** These values are segment probabilities with same names in VP9
+ * function setup_segmentation(). They should be parsed directly from
+ * bitstream by application.
+ */
+ uint8_t mb_segment_tree_probs[7];
+ uint8_t segment_pred_probs[3];
+
+ /** \brief VP9 Profile definition
+ * value can be 0 or 1.
+ */
+ uint8_t profile;
+
+ /**@}*/
+
+} VADecPictureParameterBufferVP9;
+
+
+
+/**
+ * \brief VP9 Segmentation Parameter Data Structure
+ *
+ * This structure conveys per segment parameters.
+ * 8 of this data structure will be included in VASegmentationParameterBufferVP9
+ * and sent to API in a single buffer.
+ *
+ */
+typedef struct _VASegmentParameterVP9
+{
+ /**@{*/
+
+ union
+ {
+ struct
+ {
+ /** \brief Indicates if per segment reference frame indicator
+ * is enabled.
+ * Corresponding to variable feature_enabled when
+ * j == SEG_LVL_REF_FRAME in function setup_segmentation() VP9 code.
+ */
+ uint16_t segment_reference_enabled : 1;
+ /** \brief Specifies per segment reference indication.
+ * 0: reserved
+ * 1: Last ref
+ * 2: golden
+ * 3: altref
+ * Value can be derived from variable data when
+ * j == SEG_LVL_REF_FRAME in function setup_segmentation() VP9 code.
+ */
+ uint16_t segment_reference : 2;
+ /** \brief Indicates if per segment skip feature is enabled.
+ * Corresponding to variable feature_enabled when
+ * j == SEG_LVL_SKIP in function setup_segmentation() VP9 code.
+ */
+ uint16_t segment_reference_skipped : 1;
+ } fields;
+ uint16_t value;
+ } segment_flags;
+
+ /** \brief Specifies the filter level information per segment.
+ * The value corresponds to variable lfi->lvl[seg][ref][mode] in VP9 code,
+ * where m is [ref], and n is [mode] in FilterLevel[m][n].
+ */
+ uint8_t filter_level[4][2];
+ /** \brief Specifies per segment Luma AC quantization scale.
+ * Corresponding to y_dequant[qindex][1] in vp9_mb_init_quantizer()
+ * function of VP9 code.
+ */
+ int16_t luma_ac_quant_scale;
+ /** \brief Specifies per segment Luma DC quantization scale.
+ * Corresponding to y_dequant[qindex][0] in vp9_mb_init_quantizer()
+ * function of VP9 code.
+ */
+ int16_t luma_dc_quant_scale;
+ /** \brief Specifies per segment Chroma AC quantization scale.
+ * Corresponding to uv_dequant[qindex][1] in vp9_mb_init_quantizer()
+ * function of VP9 code.
+ */
+ int16_t chroma_ac_quant_scale;
+ /** \brief Specifies per segment Chroma DC quantization scale.
+ * Corresponding to uv_dequant[qindex][0] in vp9_mb_init_quantizer()
+ * function of VP9 code.
+ */
+ int16_t chroma_dc_quant_scale;
+
+ /**@}*/
+
+} VASegmentParameterVP9;
+
+
+
+/**
+ * \brief VP9 Slice Parameter Buffer Structure
+ *
+ * This structure conveys parameters related to segmentation data and should be
+ * sent once per frame.
+ *
+ * When segmentation is disabled, only SegParam[0] has valid values,
+ * all other entries should be populated with 0.
+ * Otherwise, all eight entries should be valid.
+ *
+ * Slice data buffer of VASliceDataBufferType is used
+ * to send the bitstream which should include whole or part of partition 0
+ * (at least compressed header) to the end of frame.
+ *
+ */
+typedef struct _VASliceParameterBufferVP9
+{
+ /**@{*/
+ /** \brief The byte count of current frame in the bitstream buffer,
+ * starting from first byte of the buffer.
+ * It uses the name slice_data_size to be consitent with other codec,
+ * but actually means frame_data_size.
+ */
+ uint32_t slice_data_size;
+ /**
+ * offset to the first byte of partition data (control partition)
+ */
+ uint32_t slice_data_offset;
+ /**
+ * see VA_SLICE_DATA_FLAG_XXX definitions
+ */
+ uint32_t slice_data_flag;
+
+ /**
+ * \brief per segment information
+ */
+ VASegmentParameterVP9 seg_param[8];
+
+ /**@}*/
+
+} VASliceParameterBufferVP9;
+
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* VA_DEC_VP9_H */
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