[Libva] [PATCH] Add API for VP9 Encode
Xiang, Haihao
haihao.xiang at intel.com
Thu May 26 01:56:41 UTC 2016
From: "Wang, Ce" <ce.wang at intel.com>
Signed-off-by: Wang, Ce <ce.wang at intel.com>
Signed-off-by: bzhao11 <bo.zhao at intel.com>
[Haihao: include va_enc_vp9.h in va core include file]
Signed-off-by: Xiang, Haihao <haihao.xiang at intel.com>
(cherry picked from commit 1c314d6a6e6aad9c73ec4837d78e4e3c99137f3b)
---
va/Android.mk | 1 +
va/Makefile.am | 1 +
va/va.h | 1 +
va/va_enc_vp9.h | 600 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 603 insertions(+)
create mode 100755 va/va_enc_vp9.h
diff --git a/va/Android.mk b/va/Android.mk
index b157a5c..b6f6f4f 100755
--- a/va/Android.mk
+++ b/va/Android.mk
@@ -74,6 +74,7 @@ LOCAL_COPY_HEADERS := \
va_enc_hevc.h \
va_enc_jpeg.h \
va_enc_vp8.h \
+ va_enc_vp9.h \
va_dec_vp9.h \
va_version.h
diff --git a/va/Makefile.am b/va/Makefile.am
index 34ee961..1be4214 100644
--- a/va/Makefile.am
+++ b/va/Makefile.am
@@ -52,6 +52,7 @@ libva_source_h = \
va_enc_jpeg.h \
va_enc_vp8.h \
va_enc_mpeg2.h \
+ va_enc_vp9.h \
va_tpi.h \
va_version.h \
va_vpp.h \
diff --git a/va/va.h b/va/va.h
index 54a7b53..2029149 100644
--- a/va/va.h
+++ b/va/va.h
@@ -2945,6 +2945,7 @@ typedef struct _VAPictureHEVC
#include <va/va_enc_jpeg.h>
#include <va/va_enc_mpeg2.h>
#include <va/va_enc_vp8.h>
+#include <va/va_enc_vp9.h>
#include <va/va_vpp.h>
/**@}*/
diff --git a/va/va_enc_vp9.h b/va/va_enc_vp9.h
new file mode 100755
index 0000000..e61c310
--- /dev/null
+++ b/va/va_enc_vp9.h
@@ -0,0 +1,600 @@
+/*
+ * 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".
+ *
+ * version 0.6
+ *
+ */
+
+#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 */
--
1.9.1
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