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Diffstat (limited to 'media/mozva/va/va_dec_vp9.h')
| -rw-r--r-- | media/mozva/va/va_dec_vp9.h | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/media/mozva/va/va_dec_vp9.h b/media/mozva/va/va_dec_vp9.h new file mode 100644 index 0000000000..17ab2a71a6 --- /dev/null +++ b/media/mozva/va/va_dec_vp9.h @@ -0,0 +1,312 @@ +/* + * 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 range [0..3]. + */ + uint8_t profile; + + /** \brief VP9 bit depth per sample + * same for both luma and chroma samples. + */ + uint8_t bit_depth; + + /** \brief Reserved bytes for future use, must be zero */ + uint32_t va_reserved[VA_PADDING_MEDIUM]; + +} 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; + + /** \brief Reserved bytes for future use, must be zero */ + uint32_t va_reserved[VA_PADDING_LOW]; + +} 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]; + + /** \brief Reserved bytes for future use, must be zero */ + uint32_t va_reserved[VA_PADDING_LOW]; + +} VASliceParameterBufferVP9; + + +/**@}*/ + +#ifdef __cplusplus +} +#endif + +#endif /* VA_DEC_VP9_H */ |