Update third_party/libva to version 1.7.1

third_party/libva/va/va_enc_vp9.h

+/*
+ * Copyright (c) 2007-2015 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_enc_vp9.h
+ * \brief VP9 encoding API
+ *
+ * This file contains the \ref api_enc_vp9 "VP9 encoding API".
+ *
+ */
+
+#ifndef VA_ENC_VP9_H
+#define VA_ENC_VP9_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \defgroup api_enc_vp9 VP9 encoding API
+ *
+ * @{
+ */
+
+/**
+ * \brief VP9 Encoding Status Data Buffer Structure
+ *
+ * This structure is used to convey status data from encoder to application.
+ * Driver allocates VACodedBufferVP9Status as a private data buffer.
+ * Driver encapsulates the status buffer with a VACodedBufferSegment,
+ * and sets VACodedBufferSegment.status to be
+ * VA_CODED_BUF_STATUS_CODEC_SPECIFIC. And driver associates status data segment
+ * to the bit stream buffer segment by setting VACodedBufferSegment.next of
+ * coded_buf (bit stream) to the private buffer segment of status data.
+ * Application accesses it by calling VAMapBuffer() with VAEncCodedBufferType.
+ */
+typedef struct _VACodedBufferVP9Status {
+  /** Final quantization index used (yac), determined by BRC.
+   *  Application is providing quantization index deltas
+   *  ydc(0), y2dc(1), y2ac(2), uvdc(3), uvac(4) that are applied to all
+   * segments and segmentation qi deltas, they will not be changed by BRC.
+   */
+  uint16_t base_qp_index;
+
+  /** Final loopfilter levels for the frame, if segmentation is disabled only
+   *  index 0 is used.
+   *  If loop_filter_level is 0, it indicates loop filter is disabled.
+   */
+  uint8_t loop_filter_level;
+
+  /**
+   * Long term reference frame indication from BRC.  BRC recommends the
+   * current frame that is being queried is a good candidate for a long
+   * term reference.
+   */
+  uint8_t long_term_indication;
+
+  /* suggested next frame width */
+  uint16_t next_frame_width;
+
+  /* suggested next frame height */
+  uint16_t next_frame_height;
+
+} VACodedBufferVP9Status;
+
+/**
+ * \brief VP9 Encoding Sequence Parameter Buffer Structure
+ *
+ * This structure conveys sequence level parameters.
+ *
+ */
+typedef struct _VAEncSequenceParameterBufferVP9 {
+  /** \brief Frame size note:
+   *  Picture resolution may change frame by frame.
+   *  Application needs to allocate surfaces and frame buffers based on
+   *  max frame resolution in case resolution changes for later frames.
+   *  The source and recon surfaces allocated should be 64x64(SB) aligned
+   *  on both horizontal and vertical directions.
+   *  But buffers on the surfaces need to be aligned to CU boundaries.
+   */
+  /* maximum frame width in pixels for the whole sequence */
+  uint32_t max_frame_width;
+
+  /* maximum frame height in pixels for the whole sequence */
+  uint32_t max_frame_height;
+
+  /* auto keyframe placement, non-zero means enable auto keyframe placement */
+  uint32_t kf_auto;
+
+  /* keyframe minimum interval */
+  uint32_t kf_min_dist;
+
+  /* keyframe maximum interval */
+  uint32_t kf_max_dist;
+
+  /* RC related fields. RC modes are set with VAConfigAttribRateControl */
+  /* For VP9, CBR implies HRD conformance and VBR implies no HRD conformance */
+
+  /**
+   * Initial bitrate set for this sequence in CBR or VBR modes.
+   *
+   * This field represents the initial bitrate value for this
+   * sequence if CBR or VBR mode is used, i.e. if the encoder
+   * pipeline was created with a #VAConfigAttribRateControl
+   * attribute set to either \ref VA_RC_CBR or \ref VA_RC_VBR.
+   *
+   * The bitrate can be modified later on through
+   * #VAEncMiscParameterRateControl buffers.
+   */
+  uint32_t bits_per_second;
+
+  /* Period between key frames */
+  uint32_t intra_period;
+
+} VAEncSequenceParameterBufferVP9;
+
+/**
+ * \brief VP9 Encoding Picture Parameter Buffer Structure
+ *
+ * This structure conveys picture level parameters.
+ *
+ */
+typedef struct _VAEncPictureParameterBufferVP9 {
+  /** VP9 encoder may support dynamic scaling function.
+   *  If enabled (enable_dynamic_scaling is set), application may request
+   *  GPU encodes picture with a different resolution from the raw source.
+   *  GPU should handle the scaling process of source and
+   *  all reference frames.
+   */
+  /* raw source frame width in pixels */
+  uint32_t frame_width_src;
+  /* raw source frame height in pixels */
+  uint32_t frame_height_src;
+
+  /* to be encoded frame width in pixels */
+  uint32_t frame_width_dst;
+  /* to be encoded frame height in pixels */
+  uint32_t frame_height_dst;
+
+  /* surface to store reconstructed frame, not used for enc only case */
+  VASurfaceID reconstructed_frame;
+
+  /** \brief reference frame buffers
+   *  Each entry of the array specifies the surface index of the picture
+   *  that is referred by current picture or will be referred by any future
+   *  picture. The valid entries take value from 0 to 127, inclusive.
+   *  Non-valid entries, those do not point to pictures which are referred
+   *  by current picture or future pictures, should take value 0xFF.
+   *  Other values are not allowed.
+   *
+   *  Application should update this array based on the refreshing
+   *  information expected.
+   */
+  VASurfaceID reference_frames[8];
+
+  /* buffer to store coded data */
+  VABufferID coded_buf;
+
+  union {
+    struct {
+      /* force this frame to be a keyframe */
+      uint32_t force_kf : 1;
+
+      /** \brief Indiates which frames to be used as reference.
+       *  (Ref_frame_ctrl & 0x01) ? 1: last frame as reference frame, 0: not.
+       *  (Ref_frame_ctrl & 0x02) ? 1: golden frame as reference frame, 0: not.
+       *  (Ref_frame_ctrl & 0x04) ? 1: alt frame as reference frame, 0: not.
+       *  L0 is for forward prediction.
+       *  L1 is for backward prediction.
+       */
+      uint32_t ref_frame_ctrl_l0 : 3;
+      uint32_t ref_frame_ctrl_l1 : 3;
+
+      /** \brief Last Reference Frame index
+       *  Specifies the index to RefFrameList[] which points to the LAST
+       *  reference frame. It corresponds to active_ref_idx[0] in VP9 code.
+       */
+      uint32_t ref_last_idx : 3;
+
+      /** \brief Specifies the Sign Bias of the LAST reference frame.
+       *  It corresponds to ref_frame_sign_bias[LAST_FRAME] in VP9 code.
+       */
+      uint32_t ref_last_sign_bias : 1;
+
+      /** \brief GOLDEN Reference Frame index
+       *  Specifies the index to RefFrameList[] which points to the Golden
+       *  reference frame. It corresponds to active_ref_idx[1] in VP9 code.
+       */
+      uint32_t ref_gf_idx : 3;
+
+      /** \brief Specifies the Sign Bias of the GOLDEN reference frame.
+       *  It corresponds to ref_frame_sign_bias[GOLDEN_FRAME] in VP9 code.
+       */
+      uint32_t ref_gf_sign_bias : 1;
+
+      /** \brief Alternate Reference Frame index
+       *  Specifies the index to RefFrameList[] which points to the Alternate
+       *  reference frame. It corresponds to active_ref_idx[2] in VP9 code.
+       */
+      uint32_t ref_arf_idx : 3;
+
+      /** \brief Specifies the Sign Bias of the ALTERNATE reference frame.
+       *  It corresponds to ref_frame_sign_bias[ALTREF_FRAME] in VP9 code.
+       */
+      uint32_t ref_arf_sign_bias : 1;
+
+      /* The temporal id the frame belongs to */
+      uint32_t temporal_id : 8;
+
+      uint32_t reserved : 5;
+    } bits;
+    uint32_t value;
+  } ref_flags;
+
+  union {
+    struct {
+      /**
+       * Indicates if the current frame is a key frame or not.
+       * Corresponds to the same VP9 syntax element in frame tag.
+       */
+      uint32_t frame_type : 1;
+
+      /** \brief show_frame
+       *  0: current frame is not for display
+       *  1: current frame is for display
+       */
+      uint32_t show_frame : 1;
+
+      /**
+       * The following fields correspond to the same VP9 syntax elements
+       * in the frame header.
+       */
+      uint32_t error_resilient_mode : 1;
+
+      /** \brief Indicate intra-only for inter pictures.
+       *  Must be 0 for key frames.
+       *  0: inter frame use both intra and inter blocks
+       *  1: inter frame use only intra blocks.
+       */
+      uint32_t intra_only : 1;
+
+      /** \brief Indicate high precision mode for Motion Vector prediction
+       *  0: normal mode
+       *  1: high precision mode
+       */
+      uint32_t allow_high_precision_mv : 1;
+
+      /** \brief Motion Compensation Filter type
+       *  0: eight-tap  (only this mode is supported now.)
+       *  1: eight-tap-smooth
+       *  2: eight-tap-sharp
+       *  3: bilinear
+       *  4: switchable
+       */
+      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;
+
+      /* corresponds to variable temporal_update in VP9 code.
+       * Indicates whether Segment ID is from bitstream or from previous
+       * frame.
+       * 0: Segment ID from bitstream
+       * 1: Segment ID from previous frame
+       */
+      uint32_t segmentation_temporal_update : 1;
+
+      /* corresponds to variable update_mb_segmentation_map in VP9 code.
+       * Indicates how hardware determines segmentation ID
+       * 0: intra block - segment id is 0;
+       *    inter block - segment id from previous frame
+       * 1: intra block - segment id from bitstream (app or GPU decides)
+       *    inter block - depends on segmentation_temporal_update
+       */
+      uint32_t segmentation_update_map : 1;
+
+      /** \brief Specifies if the picture is coded in lossless mode.
+       *
+       *  lossless_mode = 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.
+       *
+       *  When enabled, tx_mode needs to be set to 4x4 only and all
+       *  tu_size in CU record set to 4x4 for entire frame.
+       *  Software also has to program such that final_qindex=0 and
+       *  final_filter_level=0 following the Quant Scale and
+       *  Filter Level Table in Segmentation State section.
+       *  Hardware forces Hadamard Tx when this bit is set.
+       *  When lossless_mode is on, BRC has to be turned off.
+       *  0: normal mode
+       *  1: lossless mode
+       */
+      uint32_t lossless_mode : 1;
+
+      /** \brief MV prediction mode. Corresponds to VP9 variable with same name.
+       *  comp_prediction_mode = 0:             single prediction ony,
+       *  comp_prediction_mode = 1:             compound prediction,
+       *  comp_prediction_mode = 2:             hybrid prediction
+       *
+       *  Not mandatory. App may suggest the setting based on power or
+       *  performance. Kernal may use it as a guildline and decide the proper
+       *  setting on its own.
+       */
+      uint32_t comp_prediction_mode : 2;
+
+      /** \brief Indicate how segmentation is specified
+       *  0   application specifies segmentation partitioning and
+       *      relevant parameters.
+       *  1   GPU may decide on segmentation. If application already
+       *      provides segmentation information, GPU may choose to
+       *      honor it and further split into more levels if possible.
+       */
+      uint32_t auto_segmentation : 1;
+
+      /** \brief Indicate super frame syntax should be inserted
+       *  0   current frame is not encapsulated in super frame structure
+       *  1   current fame is to be encapsulated in super frame structure.
+       *      super frame index syntax will be inserted by encoder at
+       *      the end of current frame.
+       */
+      uint32_t super_frame_flag : 1;
+
+      uint32_t reserved : 10;
+    } bits;
+    uint32_t value;
+  } pic_flags;
+
+  /** \brief indicate which frames in DPB should be refreshed.
+   *  same syntax and semantic as in VP9 code.
+   */
+  uint8_t refresh_frame_flags;
+
+  /** \brief Base Q index in the VP9 term.
+   *  Added with per segment delta Q index to get Q index of Luma AC.
+   */
+  uint8_t luma_ac_qindex;
+
+  /**
+   *  Q index delta from base Q index in the VP9 term for Luma DC.
+   */
+  int8_t luma_dc_qindex_delta;
+
+  /**
+   *  Q index delta from base Q index in the VP9 term for Chroma AC.
+   */
+  int8_t chroma_ac_qindex_delta;
+
+  /**
+   *  Q index delta from base Q index in the VP9 term for Chroma DC.
+   */
+  int8_t chroma_dc_qindex_delta;
+
+  /** \brief filter level
+   *  Corresponds to the same VP9 syntax element in frame header.
+   */
+  uint8_t filter_level;
+
+  /**
+   * Controls the deblocking filter sensitivity.
+   * Corresponds to the same VP9 syntax element in frame header.
+   */
+  uint8_t sharpness_level;
+
+  /** \brief Loop filter level reference delta values.
+   *  Contains a list of 4 delta values for reference frame based block-level
+   *  loop filter adjustment.
+   *  If no update, set to 0.
+   *  value range [-63..63]
+   */
+  int8_t ref_lf_delta[4];
+
+  /** \brief Loop filter level mode delta values.
+   *  Contains a list of 4 delta values for coding mode based MB-level loop
+   *  filter adjustment.
+   *  If no update, set to 0.
+   *  value range [-63..63]
+   */
+  int8_t mode_lf_delta[2];
+
+  /**
+   *  Offset from starting position of output bitstream in bits where
+   *  ref_lf_delta[] should be inserted. This offset should cover any metadata
+   *  ahead of uncompressed header in inserted bit stream buffer (the offset
+   *  should be same as that for final output bitstream buffer).
+   *
+   *  In BRC mode, always insert ref_lf_delta[] (This implies uncompressed
+   *  header should have mode_ref_delta_enabled=1 and mode_ref_delta_update=1).
+   */
+  uint16_t bit_offset_ref_lf_delta;
+
+  /**
+   *  Offset from starting position of output bitstream in bits where
+   *  mode_lf_delta[] should be inserted.
+   *
+   *  In BRC mode, always insert mode_lf_delta[] (This implies uncompressed
+   *  header should have mode_ref_delta_enabled=1 and mode_ref_delta_update=1).
+   */
+  uint16_t bit_offset_mode_lf_delta;
+
+  /**
+   *  Offset from starting position of output bitstream in bits where (loop)
+   *  filter_level should be inserted.
+   */
+  uint16_t bit_offset_lf_level;
+
+  /**
+   *  Offset from starting position of output bitstream in bits where
+   *  Base Qindex should be inserted.
+   */
+  uint16_t bit_offset_qindex;
+
+  /**
+   *  Offset from starting position of output bitstream in bits where
+   *  First Partition Size should be inserted.
+   */
+  uint16_t bit_offset_first_partition_size;
+
+  /**
+   *  Offset from starting position of output bitstream in bits where
+   *  segmentation_enabled is located in bitstream. When auto_segmentation
+   *  is enabled, GPU uses this offset to locate and update the
+   *  segmentation related information.
+   */
+  uint16_t bit_offset_segmentation;
+
+  /** \brief length in bit of segmentation portion from the location
+   *  in bit stream where segmentation_enabled syntax is coded.
+   *  When auto_segmentation is enabled, GPU uses this bit size to locate
+   *  and update the information after segmentation.
+   */
+  uint16_t bit_size_segmentation;
+
+  /** \brief log2 of number of tile rows
+   *  Corresponds to the same VP9 syntax element in frame header.
+   *  value range [0..2]
+   */
+  uint8_t log2_tile_rows;
+
+  /** \brief log2 of number of tile columns
+   *  Corresponds to the same VP9 syntax element in frame header.
+   *  value range [0..5]
+   */
+  uint8_t log2_tile_columns;
+
+  /** \brief indicate frame-skip happens
+   *  Application may choose to drop/skip one or mulitple encoded frames or
+   *  to-be-encoded frame due to various reasons such as insufficient
+   *  bandwidth.
+   *  Application uses the following three flags to inform GPU about frame-skip.
+   *
+   *  value range of skip_frame_flag: [0..2]
+   *      0 - encode as normal, no skip;
+   *      1 - one or more frames were skipped by application prior to the
+   *          current frame. Encode the current frame as normal. The driver
+   *          will pass the number_skip_frames and skip_frames_size
+   *          to bit rate control for adjustment.
+   *      2 - the current frame is to be skipped. Do not encode it but encrypt
+   *          the packed header contents. This is for the secure encoding case
+   *          where application generates a frame of all skipped blocks.
+   *          The packed header will contain the skipped frame.
+   */
+  uint8_t skip_frame_flag;
+
+  /** \brief The number of frames skipped prior to the current frame.
+   *  It includes only the skipped frames that were not counted before,
+   *  and does not include the frame with skip_frame_flag == 2.
+   *  Valid when skip_frame_flag = 1.
+   */
+  uint8_t number_skip_frames;
+
+  /** \brief When skip_frame_flag = 1, the size of the skipped frames in bits.
+   *  It includes only the skipped frames that were not counted before,
+   *  and does not include the frame size with skip_frame_flag = 2.
+   *  When skip_frame_flag = 2, it is the size of the current skipped frame
+   *  that is to be encrypted.
+   */
+  uint32_t skip_frames_size;
+
+} VAEncPictureParameterBufferVP9;
+
+/**
+ * \brief Per segment parameters
+ */
+typedef struct _VAEncSegParamVP9 {
+  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.
+       */
+      uint8_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.
+       *  value range: [0..3]
+       */
+      uint8_t segment_reference : 2;
+
+      /** \brief Indicates if per segment skip mode is enabled.
+       *  Corresponding to variable feature_enabled when
+       *  j == SEG_LVL_SKIP in function setup_segmentation() VP9 code.
+       */
+      uint8_t segment_reference_skipped : 1;
+
+      uint8_t reserved : 4;
+
+    } bits;
+    uint8_t value;
+  } seg_flags;
+
+  /** \brief Specifies per segment Loop Filter Delta.
+   *  Must be 0 when segmentation_enabled == 0.
+   *  value range: [-63..63]
+   */
+  int8_t segment_lf_level_delta;
+
+  /** \brief Specifies per segment QIndex Delta.
+   *  Must be 0 when segmentation_enabled == 0.
+   *  value range: [-255..255]
+   */
+  int16_t segment_qindex_delta;
+
+} VAEncSegParamVP9;
+
+/**
+ *  Structure to convey all segment related information.
+ *  If segmentation is disabled, this data structure is still required.
+ *  In this case, only seg_data[0] contains valid data.
+ *  This buffer is sent once per frame.
+ *
+ *  The buffer is created with VABufferType VAQMatrixBufferType.
+ *
+ */
+typedef struct _VAEncMiscParameterTypeVP9PerSegmantParam {
+  /**
+   *  Parameters for 8 segments.
+   */
+  VAEncSegParamVP9 seg_data[8];
+
+} VAEncMiscParameterTypeVP9PerSegmantParam;
+
+/**
+ * \brief VP9 Block Segmentation ID Buffer
+ *
+ * The application provides a buffer of VAEncMacroblockMapBufferType containing
+ * the initial segmentation id for each 8x8 block, one byte each, in raster scan
+ * order. Rate control may reassign it.  For example, a 640x480 video, the
+ * buffer has 4800 entries. The value of each entry should be in the range
+ * [0..7], inclusive. If segmentation is not enabled, the application does not
+ * need to provide it.
+ */
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* VA_ENC_VP9_H */