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+/*
+ * Copyright (c) 2007-2012 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_vp.h
+ * \brief VP8 decoding API
+ *
+ * This file contains the \ref api_dec_vp8 "VP8 decoding API".
+ */
+
+#ifndef VA_DEC_VP8_H
+#define VA_DEC_VP8_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \defgroup api_dec_vp8 VP8 decoding API
+ *
+ * @{
+ */
+
+/**
+ * \brief VPX Bool Coder Context structure
+ *
+ * This common structure is defined for potential sharing by other VP formats
+ *
+ */
+typedef struct _VABoolCoderContextVPX {
+ /* partition 0 "range" */
+ uint8_t range;
+ /* partition 0 "value" */
+ uint8_t value;
+ /*
+ * 'partition 0 number of shifts before an output byte is available'
+ * it is the number of remaining bits in 'value' for decoding, range [0, 7].
+ */
+
+ uint8_t count;
+} VABoolCoderContextVPX;
+
+/**
+ * \brief VP8 Decoding Picture Parameter Buffer Structure
+ *
+ * This structure conveys frame level parameters and should be sent once
+ * per frame.
+ *
+ */
+typedef struct _VAPictureParameterBufferVP8 {
+ /* frame width in pixels */
+ uint32_t frame_width;
+ /* frame height in pixels */
+ uint32_t frame_height;
+
+ /* specifies the "last" reference frame */
+ VASurfaceID last_ref_frame;
+ /* specifies the "golden" reference frame */
+ VASurfaceID golden_ref_frame;
+ /* specifies the "alternate" referrence frame */
+ VASurfaceID alt_ref_frame;
+ /* specifies the out-of-loop deblocked frame, not used currently */
+ VASurfaceID out_of_loop_frame;
+
+ union {
+ struct {
+ /* same as key_frame in bitstream syntax, 0 means a key frame */
+ uint32_t key_frame : 1;
+ /* same as version in bitstream syntax */
+ uint32_t version : 3;
+ /* same as segmentation_enabled in bitstream syntax */
+ uint32_t segmentation_enabled : 1;
+ /* same as update_mb_segmentation_map in bitstream syntax */
+ uint32_t update_mb_segmentation_map : 1;
+ /* same as update_segment_feature_data in bitstream syntax */
+ uint32_t update_segment_feature_data : 1;
+ /* same as filter_type in bitstream syntax */
+ uint32_t filter_type : 1;
+ /* same as sharpness_level in bitstream syntax */
+ uint32_t sharpness_level : 3;
+ /* same as loop_filter_adj_enable in bitstream syntax */
+ uint32_t loop_filter_adj_enable : 1;
+ /* same as mode_ref_lf_delta_update in bitstream syntax */
+ uint32_t mode_ref_lf_delta_update : 1;
+ /* same as sign_bias_golden in bitstream syntax */
+ uint32_t sign_bias_golden : 1;
+ /* same as sign_bias_alternate in bitstream syntax */
+ uint32_t sign_bias_alternate : 1;
+ /* same as mb_no_coeff_skip in bitstream syntax */
+ uint32_t mb_no_coeff_skip : 1;
+ /* flag to indicate that loop filter should be disabled */
+ uint32_t loop_filter_disable : 1;
+ } bits;
+ uint32_t value;
+ } pic_fields;
+
+ /*
+ * probabilities of the segment_id decoding tree and same as
+ * mb_segment_tree_probs in the spec.
+ */
+ uint8_t mb_segment_tree_probs[3];
+
+ /* Post-adjustment loop filter levels for the 4 segments */
+ uint8_t loop_filter_level[4];
+ /* loop filter deltas for reference frame based MB level adjustment */
+ int8_t loop_filter_deltas_ref_frame[4];
+ /* loop filter deltas for coding mode based MB level adjustment */
+ int8_t loop_filter_deltas_mode[4];
+
+ /* same as prob_skip_false in bitstream syntax */
+ uint8_t prob_skip_false;
+ /* same as prob_intra in bitstream syntax */
+ uint8_t prob_intra;
+ /* same as prob_last in bitstream syntax */
+ uint8_t prob_last;
+ /* same as prob_gf in bitstream syntax */
+ uint8_t prob_gf;
+
+ /*
+ * list of 4 probabilities of the luma intra prediction mode decoding
+ * tree and same as y_mode_probs in frame header
+ */
+ uint8_t y_mode_probs[4];
+ /*
+ * list of 3 probabilities of the chroma intra prediction mode decoding
+ * tree and same as uv_mode_probs in frame header
+ */
+ uint8_t uv_mode_probs[3];
+ /*
+ * updated mv decoding probabilities and same as mv_probs in
+ * frame header
+ */
+ uint8_t mv_probs[2][19];
+
+ VABoolCoderContextVPX bool_coder_ctx;
+
+ /** \brief Reserved bytes for future use, must be zero */
+ uint32_t va_reserved[VA_PADDING_LOW];
+} VAPictureParameterBufferVP8;
+
+/**
+ * \brief VP8 Slice Parameter Buffer Structure
+ *
+ * This structure conveys parameters related to data partitions and should be
+ * sent once per frame. Slice data buffer of VASliceDataBufferType is used
+ * to send the partition data.
+ *
+ */
+typedef struct _VASliceParameterBufferVP8 {
+ /*
+ * number of bytes in the slice data buffer for the partitions
+ */
+ 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;
+ /*
+ * offset to the first bit of MB from the first byte of partition data(slice_data_offset)
+ */
+ uint32_t macroblock_offset;
+
+ /*
+ * Partitions
+ * (1<<log2_nbr_of_dct_partitions)+1, count both control partition (frame header) and toke partition
+ */
+ uint8_t num_of_partitions;
+ /*
+ * partition_size[0] is remaining bytes of control partition after parsed by application.
+ * exclude current byte for the remaining bits in bool_coder_ctx.
+ * exclude the uncompress data chunk since first_part_size 'excluding the uncompressed data chunk'
+ */
+ uint32_t partition_size[9];
+
+ /** \brief Reserved bytes for future use, must be zero */
+ uint32_t va_reserved[VA_PADDING_LOW];
+} VASliceParameterBufferVP8;
+
+/**
+ * \brief VP8 Coefficient Probability Data Buffer Structure
+ *
+ * Contains the contents of the token probability table, which may be
+ * incrementally modified in the frame header. There are four dimensions to
+ * the token probability array. The outermost dimension is indexed by the
+ * type of plane being decoded; the next dimension is selected by the
+ * position of the coefficient being decoded; the third dimension, * roughly
+ * speaking, measures the "local complexity" or extent to which nearby
+ * coefficients are non-zero; the fourth, and final, dimension of the token
+ * probability array is indexed by the position in the token tree structure,
+ * as are all tree probability arrays. This structure is sent once per frame.
+ *
+ */
+typedef struct _VAProbabilityDataBufferVP8 {
+ uint8_t dct_coeff_probs[4][8][3][11];
+
+ /** \brief Reserved bytes for future use, must be zero */
+ uint32_t va_reserved[VA_PADDING_LOW];
+} VAProbabilityDataBufferVP8;
+
+/**
+ * \brief VP8 Inverse Quantization Matrix Buffer Structure
+ *
+ * Contains quantization indices for yac(0),ydc(1),y2dc(2),y2ac(3),uvdc(4),
+ * uvac(5) for each segment (0-3). When segmentation is disabled, only
+ * quantization_index[0][] will be used. This structure is sent once per frame.
+ */
+typedef struct _VAIQMatrixBufferVP8 {
+ /*
+ * array first dimensional is segment and 2nd dimensional is Q index
+ * all Q indexs should be clipped to be range [0, 127]
+ */
+ uint16_t quantization_index[4][6];
+
+ /** \brief Reserved bytes for future use, must be zero */
+ uint32_t va_reserved[VA_PADDING_LOW];
+} VAIQMatrixBufferVP8;
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* VA_DEC_VP8_H */