Update third_party/libva to version 1.7.1

third_party/libva/va/va_enc_h264.h

 /*
  * 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:
@@ skipping 103 matching lines @@
      * 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 
+ * \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
@@ skipping 381 matching lines @@
 /** \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.
+ */
+
+/**@}*/
+
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* VA_ENC_H264_H */