Update libva headers to the latest release (1.2.1).

third_party/libva/va/va_enc_h264.h

Index: third_party/libva/va/va_enc_h264.h
diff --git a/third_party/libva/va/va_enc_h264.h b/third_party/libva/va/va_enc_h264.h
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+/*
+ * Copyright (c) 2007-2011 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_h264.h
+ * \brief The H.264 encoding API
+ *
+ * This file contains the \ref api_enc_h264 "H.264 encoding API".
+ */
+
+#ifndef VA_ENC_H264_H
+#define VA_ENC_H264_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \defgroup api_enc_h264 H.264 encoding API
+ *
+ * @{
+ */
+
+/**
+ * @name Picture flags
+ *
+ * Those flags flags are meant to signal when a picture marks the end
+ * of a sequence, a stream, or even both at once.
+ *
+ * @{
+ */
+/**
+ * \brief Marks the last picture in the sequence.
+ *
+ * i.e. the driver appends \c end_of_seq() NAL unit to the encoded frame.
+ */
+#define H264_LAST_PICTURE_EOSEQ     0x01
+/**
+ * \brief Marks the last picture in the stream.
+ *
+ * i.e. the driver appends \c end_of_stream() NAL unit to the encoded frame.
+ */
+#define H264_LAST_PICTURE_EOSTREAM  0x02
+/**@}*/
+
+/**
+ * \brief Packed header types specific to H.264 encoding.
+ *
+ * Types of packed headers generally used for H.264 encoding. Each
+ * associated packed header data buffer shall contain the start code
+ * prefix 0x000001 followed by the complete NAL unit, thus also
+ * including the \c nal_unit_type.
+ *
+ * Note: the start code prefix can contain an arbitrary number of leading
+ * zeros. The driver will skip them for emulation prevention bytes insertion,
+ * if necessary.
+ */
+typedef enum {
+    /**
+     * \brief Packed Sequence Parameter Set (SPS).
+     *
+     * The corresponding packed header data buffer shall contain the
+     * complete seq_parameter_set_rbsp() syntax element.
+     *
+     * Note: packed \c nal_unit_type shall be equal to 7.
+     */
+    VAEncPackedHeaderH264_SPS   = VAEncPackedHeaderSequence,
+    /**
+     * \brief Packed Picture Parameter Set (PPS).
+     *
+     * The corresponding packed header data buffer shall contain the
+     * complete pic_parameter_set_rbsp() syntax element.
+     *
+     * Note: packed \c nal_unit_type shall be equal to 8.
+     */
+    VAEncPackedHeaderH264_PPS   = VAEncPackedHeaderPicture,
+    /**
+     * \brief Packed slice header.
+     *
+     * The corresponding packed header data buffer shall contain the
+     * \c slice_header() syntax element only, along with any start
+     * code prefix and NAL unit type preceeding it. i.e. this means
+     * that the buffer does not contain any of the \c slice_data() or
+     * the \c rbsp_slice_trailing_bits().
+     *
+     * Note: packed \c nal_unit_type shall be equal to 1 (non-IDR
+     * picture), or 5 (IDR picture).
+     */
+    VAEncPackedHeaderH264_Slice = VAEncPackedHeaderSlice,
+    /**
+     * \brief Packed Supplemental Enhancement Information (SEI).
+     *
+     * The corresponding packed header data buffer shall contain the
+     * complete sei_rbsp() syntax element, thus including several
+     * sei_message() elements if necessary.
+     *
+     * Note: packed \c nal_unit_type shall be equal to 6.
+     */
+    VAEncPackedHeaderH264_SEI   = (VAEncPackedHeaderMiscMask | 1),
+} VAEncPackedHeaderTypeH264;
+
+/**
+ * \brief Sequence parameter for H.264 encoding in baseline, main & high 
+ * profiles.
+ *
+ * This structure holds information for \c seq_parameter_set_data() as
+ * defined by the H.264 specification.
+ *
+ * If packed sequence headers mode is used, i.e. if the encoding
+ * pipeline was configured with the #VA_ENC_PACKED_HEADER_SEQUENCE
+ * flag, then the driver expects two more buffers to be provided to
+ * the same \c vaRenderPicture() as this buffer:
+ * - a #VAEncPackedHeaderParameterBuffer with type set to
+ *   VAEncPackedHeaderType::VAEncPackedHeaderSequence ;
+ * - a #VAEncPackedHeaderDataBuffer which holds the actual packed
+ *   header data.
+ *
+ * If \c seq_scaling_matrix_present_flag is set to \c 1, then a
+ * #VAIQMatrixBufferH264 buffer shall also be provided within the same
+ * \c vaRenderPicture() call as this sequence parameter buffer.
+ */
+typedef struct _VAEncSequenceParameterBufferH264 {
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   seq_parameter_set_id;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   level_idc;
+    /** \brief Period between I frames. */
+    unsigned int    intra_period;
+    /** \brief Period between IDR frames. */
+    unsigned int    intra_idr_period;
+    /** \brief Period between I/P frames. */
+    unsigned int    ip_period;
+    /**
+     * \brief 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.
+     */
+    unsigned int    bits_per_second;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    max_num_ref_frames;
+    /** \brief Picture width in macroblocks. */
+    unsigned short  picture_width_in_mbs;
+    /** \brief Picture height in macroblocks. */
+    unsigned short  picture_height_in_mbs;
+
+    union {
+        struct {
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int chroma_format_idc                      : 2;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int frame_mbs_only_flag                    : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int mb_adaptive_frame_field_flag           : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int seq_scaling_matrix_present_flag        : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int direct_8x8_inference_flag              : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int log2_max_frame_num_minus4              : 4;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int pic_order_cnt_type                     : 2;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int log2_max_pic_order_cnt_lsb_minus4      : 4;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int delta_pic_order_always_zero_flag       : 1;
+        } bits;
+        unsigned int value;
+    } seq_fields;
+
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   bit_depth_luma_minus8;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   bit_depth_chroma_minus8;
+
+    /** if pic_order_cnt_type == 1 */
+    /**@{*/
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   num_ref_frames_in_pic_order_cnt_cycle;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    int             offset_for_non_ref_pic;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    int             offset_for_top_to_bottom_field;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    int             offset_for_ref_frame[256];
+    /**@}*/
+
+    /** @name Cropping (optional) */
+    /**@{*/
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   frame_cropping_flag;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    frame_crop_left_offset;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    frame_crop_right_offset;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    frame_crop_top_offset;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    frame_crop_bottom_offset;
+    /**@}*/
+
+    /** @name VUI parameters (optional) */
+    /**@{*/
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   vui_parameters_present_flag;
+    union {
+        struct {
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int aspect_ratio_info_present_flag         : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int timing_info_present_flag               : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int bitstream_restriction_flag             : 1;
+            /** \brief Range: 0 to 16, inclusive. */
+            unsigned int log2_max_mv_length_horizontal          : 5;
+            /** \brief Range: 0 to 16, inclusive. */
+            unsigned int log2_max_mv_length_vertical            : 5;
+        } bits;
+        unsigned int value;
+    } vui_fields;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   aspect_ratio_idc;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    sar_width;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    sar_height;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    num_units_in_tick;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned int    time_scale;
+    /**@}*/
+} VAEncSequenceParameterBufferH264;
+
+/**
+ * \brief Picture parameter for H.264 encoding in baseline, main & high 
+ * profiles.
+ *
+ * This structure holds information for \c pic_parameter_set_rbsp() as
+ * defined by the H.264 specification.
+ *
+ * If packed picture headers mode is used, i.e. if the encoding
+ * pipeline was configured with the #VA_ENC_PACKED_HEADER_PICTURE
+ * flag, then the driver expects two more buffers to be provided to
+ * the same \c vaRenderPicture() as this buffer:
+ * - a #VAEncPackedHeaderParameterBuffer with type set to
+ *   VAEncPackedHeaderType::VAEncPackedHeaderPicture ;
+ * - a #VAEncPackedHeaderDataBuffer which holds the actual packed
+ *   header data.
+ *
+ * If \c pic_scaling_matrix_present_flag is set to \c 1, then a
+ * #VAIQMatrixBufferH264 buffer shall also be provided within the same
+ * \c vaRenderPicture() call as this picture parameter buffer.
+ */
+typedef struct _VAEncPictureParameterBufferH264 {
+    /**
+     * \brief Information about the picture to be encoded.
+     *
+     * See #VAPictureH264 for further description of each field.
+     * Note that CurrPic.picture_id represents the reconstructed
+     * (decoded) picture. User provides a scratch VA surface ID here.
+     */
+    VAPictureH264   CurrPic;
+    /**
+     * \brief Decoded Picture Buffer (DPB).
+     *
+     * This array represents the list of reconstructed (decoded)
+     * frames used as reference. It is important to keep track of
+     * reconstructed frames so that they can be used later on as
+     * reference for P or B-frames encoding.
+     */
+    VAPictureH264   ReferenceFrames[16];
+    /**
+     * \brief Output encoded bitstream.
+     *
+     * \ref coded_buf has type #VAEncCodedBufferType. It should be
+     * large enough to hold the compressed NAL slice and possibly SPS
+     * and PPS NAL units.
+     */
+    VABufferID      coded_buf;
+
+    /** \brief The picture parameter set referred to in the slice header. */
+    unsigned char   pic_parameter_set_id;
+    /** \brief The active sequence parameter set. Range: 0 to 31, inclusive. */
+    unsigned char   seq_parameter_set_id;
+
+    /**
+     * \brief OR'd flags describing whether the picture is the last one or not.
+     *
+     * This fields holds 0 if the picture to be encoded is not the last
+     * one in the stream or sequence. Otherwise, it is a combination of
+     * \ref H264_LAST_PICTURE_EOSEQ or \ref H264_LAST_PICTURE_EOSTREAM.
+     */
+    unsigned char   last_picture;
+
+    /** \brief The picture identifier.
+     *   Range: 0 to \f$2^{log2\_max\_frame\_num\_minus4 + 4} - 1\f$, inclusive.
+     */
+    unsigned short  frame_num;
+
+    /** \brief \c pic_init_qp_minus26 + 26. */
+    unsigned char   pic_init_qp;
+    /** \brief Maximum reference index for reference picture list 0.
+     *   Range: 0 to 31, inclusive.
+     */
+    unsigned char   num_ref_idx_l0_active_minus1;
+    /** \brief Maximum reference index for reference picture list 1.
+     *  Range: 0 to 31, inclusive.
+     */
+    unsigned char   num_ref_idx_l1_active_minus1;
+
+    /** \brief Range: -12 to 12, inclusive. */
+    signed char     chroma_qp_index_offset;
+    /** \brief Range: -12 to 12, inclusive. */
+    signed char     second_chroma_qp_index_offset;
+
+    union {
+        struct {
+            /** \brief Is picture an IDR picture? */
+            unsigned int idr_pic_flag                           : 1;
+            /** \brief Is picture a reference picture? */
+            unsigned int reference_pic_flag                     : 2;
+            /** \brief Selects CAVLC (0) or CABAC (1) entropy coding mode. */
+            unsigned int entropy_coding_mode_flag               : 1;
+            /** \brief Is weighted prediction applied to P slices? */
+            unsigned int weighted_pred_flag                     : 1;
+            /** \brief Range: 0 to 2, inclusive. */
+            unsigned int weighted_bipred_idc                    : 2;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int constrained_intra_pred_flag            : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int transform_8x8_mode_flag                : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int deblocking_filter_control_present_flag : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int redundant_pic_cnt_present_flag         : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int pic_order_present_flag                 : 1;
+            /** \brief Same as the H.264 bitstream syntax element. */
+            unsigned int pic_scaling_matrix_present_flag        : 1;
+        } bits;
+        unsigned int value;
+    } pic_fields;
+} VAEncPictureParameterBufferH264;
+
+/**
+ * \brief Slice parameter for H.264 encoding in baseline, main & high profiles.
+ *
+ * This structure holds information for \c
+ * slice_layer_without_partitioning_rbsp() as defined by the H.264
+ * specification.
+ *
+ * If packed slice headers mode is used, i.e. if the encoding
+ * pipeline was configured with the #VA_ENC_PACKED_HEADER_SLICE
+ * flag, then the driver expects two more buffers to be provided to
+ * the same \c vaRenderPicture() as this buffer:
+ * - a #VAEncPackedHeaderParameterBuffer with type set to
+ *   VAEncPackedHeaderType::VAEncPackedHeaderSlice ;
+ * - a #VAEncPackedHeaderDataBuffer which holds the actual packed
+ *   header data.
+ *
+ * If per-macroblock encoder configuration is needed, \c macroblock_info
+ * references a buffer of type #VAEncMacroblockParameterBufferH264. This
+ * buffer is not passed to vaRenderPicture(). i.e. it is not destroyed
+ * by subsequent calls to vaRenderPicture() and then can be re-used
+ * without re-allocating the whole buffer.
+ */
+typedef struct _VAEncSliceParameterBufferH264 {
+    /** \brief Starting MB address for this slice. */
+    unsigned int    macroblock_address;
+    /** \brief Number of macroblocks in this slice. */
+    unsigned int    num_macroblocks;
+    /**
+     * \brief Per-MB encoder configuration buffer, or \c VA_INVALID_ID.
+     *
+     * If per-MB encoder configuration is needed, then \ref macroblock_info
+     * references a buffer of type #VAEncMacroblockParameterBufferH264
+     * (\c VAEncMacroblockParameterBufferType). Otherwise, buffer id
+     * is set to \c VA_INVALID_ID and per-MB configuration is derived
+     * from this slice parameter.
+     *
+     * The \c macroblock_info buffer must hold \ref num_macroblocks
+     * elements.
+     */
+    VABufferID      macroblock_info;
+    /** \brief Slice type.
+     *  Range: 0..2, 5..7, i.e. no switching slices.
+     */
+    unsigned char   slice_type;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   pic_parameter_set_id;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned short  idr_pic_id;
+
+    /** @name If pic_order_cnt_type == 0 */
+    /**@{*/
+    /** \brief The picture order count modulo MaxPicOrderCntLsb. */
+    unsigned short  pic_order_cnt_lsb;
+    /** \brief Valid if \c pic_order_present_flag and this is a bottom field. */
+    int             delta_pic_order_cnt_bottom;
+    /**@}*/
+    /** @name If pic_order_cnt_type == 1 && !delta_pic_order_always_zero_flag */
+    /**@{*/
+    /** \brief [0]: top, [1]: bottom. */
+    int             delta_pic_order_cnt[2];
+    /**@}*/
+
+    /** @name If slice_type == B */
+    /**@{*/
+    unsigned char   direct_spatial_mv_pred_flag;
+    /**@}*/
+
+    /** @name If slice_type == P */
+    /**@{*/
+    /** \brief Specifies if
+     * \ref _VAEncPictureParameterBufferH264::num_ref_idx_l0_active_minus1 or
+     * \ref _VAEncPictureParameterBufferH264::num_ref_idx_l1_active_minus1 are
+     * overriden by the values for this slice.
+     */
+    unsigned char   num_ref_idx_active_override_flag;
+    /** \brief Maximum reference index for reference picture list 0.
+     *  Range: 0 to 31, inclusive.
+     */
+    unsigned char   num_ref_idx_l0_active_minus1;
+    /** \brief Maximum reference index for reference picture list 1.
+     *  Range: 0 to 31, inclusive.
+     */
+    unsigned char   num_ref_idx_l1_active_minus1;
+    /** \brief Reference picture list 0 (for P slices). */
+    VAPictureH264   RefPicList0[32];
+    /** \brief Reference picture list 1 (for B slices). */
+    VAPictureH264   RefPicList1[32];
+    /**@}*/
+
+    /** @name pred_weight_table() */
+    /**@{*/
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   luma_log2_weight_denom;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   chroma_log2_weight_denom;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   luma_weight_l0_flag;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    luma_weight_l0[32];
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    luma_offset_l0[32];
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   chroma_weight_l0_flag;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    chroma_weight_l0[32][2];
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    chroma_offset_l0[32][2];
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   luma_weight_l1_flag;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    luma_weight_l1[32];
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    luma_offset_l1[32];
+    /** \brief Same as the H.264 bitstream syntax element. */
+    unsigned char   chroma_weight_l1_flag;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    chroma_weight_l1[32][2];
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed short    chroma_offset_l1[32][2];
+    /**@}*/
+
+    /** \brief Range: 0 to 2, inclusive. */
+    unsigned char   cabac_init_idc;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed char     slice_qp_delta;
+    /** @name If deblocking_filter_control_present_flag */
+    /**@{*/
+    /** \brief Range: 0 to 2, inclusive. */
+    unsigned char   disable_deblocking_filter_idc;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed char     slice_alpha_c0_offset_div2;
+    /** \brief Same as the H.264 bitstream syntax element. */
+    signed char     slice_beta_offset_div2;
+    /**@}*/
+} VAEncSliceParameterBufferH264;
+
+/**
+ * @name Macroblock neighbour availability bits
+ *
+ * \anchor api_enc_h264_mb_pred_avail_bits
+ * Definitions for macroblock neighbour availability bits used in
+ * intra prediction mode (non MBAFF only).
+ *
+ * @{
+ */
+/** \brief References macroblock in the top-left corner. */
+#define VA_MB_PRED_AVAIL_TOP_LEFT         (1 << 2)
+/** \brief References macroblock above the current macroblock. */
+#define VA_MB_PRED_AVAIL_TOP              (1 << 4)
+/** \brief References macroblock in the top-right corner. */
+#define VA_MB_PRED_AVAIL_TOP_RIGHT        (1 << 3)
+/** \brief References macroblock on the left of the current macroblock. */
+#define VA_MB_PRED_AVAIL_LEFT             (1 << 6)
+/**@}*/
+
+/**
+ * \brief Macroblock parameter for H.264 encoding in baseline, main & high 
+ * profiles.
+ *
+ * This structure holds per-macroblock information. The buffer must be
+ * allocated with as many elements (macroblocks) as necessary to fit
+ * the slice to be encoded. Besides, the per-macroblock records must
+ * be written in a strict raster order and with no gap. i.e. every
+ * macroblock, regardless of its type, shall have an entry.
+ */
+typedef struct _VAEncMacroblockParameterBufferH264 {
+    /**
+     * \brief Quantization parameter.
+     *
+     * Requested quantization parameter. Range: 0 to 51, inclusive.
+     * If \ref qp is set to 0xff, then the actual value is derived
+     * from the slice-level value: \c pic_init_qp + \c slice_qp_delta.
+     */
+    unsigned char   qp;
+
+    union {
+        /** @name Data for intra macroblock */
+        /**@{*/
+        struct {
+            union {
+                /**
+                 * \brief Flag specified to override MB neighbour
+                 * availability bits from VME stage.
+                 *
+                 * This flag specifies that macroblock neighbour
+                 * availability bits from the VME stage are overriden
+                 * by the \ref pred_avail_flags hereunder.
+                 */
+                unsigned int    pred_avail_override_flag        : 1;
+                /**
+                 * \brief Bitwise representation of which macroblocks
+                 * are available for intra prediction.
+                 *
+                 * If the slice is intra-coded, this field represents
+                 * the macroblocks available for intra prediction.
+                 * See \ref api_enc_h264_mb_pred_avail_bits
+                 * "macroblock neighbour availability" bit definitions.
+                 */
+                unsigned int    pred_avail_flags                : 8;
+            } bits;
+            unsigned int value;
+        } intra_fields;
+        /**@}*/
+
+        /** @name Data for inter macroblock */
+        /**@{*/
+        struct {
+            union {
+            } bits;
+            unsigned int value;
+        } inter_fields;
+        /**@}*/
+    } info;
+} VAEncMacroblockParameterBufferH264;
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* VA_ENC_H264_H */