/* * 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".
*/
/** * \brief VPX Bool Coder Context structure * * This common structure is defined for potential sharing by other VP formats *
*/ typedefstruct _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. *
*/ typedefstruct _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. *
*/ typedefstruct _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. *
*/ typedefstruct _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.
*/ typedefstruct _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 */
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