text: /* Copyright (c) 2012, The Linux Foundation. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   *       copyright notice, this list of conditions and the following
   *       disclaimer in the documentation and/or other materials provided
   *       with the distribution.
   *     * Neither the name of The Linux Foundation nor the names of its
   *       contributors may be used to endorse or promote products derived
   *       from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
   * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
   * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #define ATTRIBUTE_VALUE_DELIM ('=')
  #define ATTRIBUTE_STRING_DELIM (";")
  
  #define METADATA_PARSING_ERR (-1)
  #define METADATA_PARSING_CONTINUE (0)
  #define METADATA_PARSING_DONE (1)
  
  #define MIN(x,y) (((x)>(y))?(y):(x))
  
  struct video_encode_metadata_t {
      int hint_id;
      int state;
  };
  
  struct video_decode_metadata_t {
      int hint_id;
      int state;
  };
  
  struct cam_preview_metadata_t {
      int hint_id;
      int state;
  };
  
  int parse_metadata(char *metadata, char **metadata_saveptr,
      char *attribute, int attribute_size, char *value, int value_size);
  int parse_video_encode_metadata(char *metadata,
      struct video_encode_metadata_t *video_encode_metadata);
  int parse_video_decode_metadata(char *metadata,
      struct video_decode_metadata_t *video_decode_metadata);
  int parse_cam_preview_metadata(char *metadata,
      struct cam_preview_metadata_t *video_decode_metadata);
  