text: /*
   * Copyright (C) 2014 BlueKitchen GmbH
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. 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.
   * 3. Neither the name of the copyright holders nor the names of
   *    contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   * 4. Any redistribution, use, or modification is done solely for
   *    personal benefit and not for any commercial purpose or for
   *    monetary gain.
   *
   * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
   * RINGWALD 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.
   *
   * Please inquire about commercial licensing options at 
   * contact@bluekitchen-gmbh.com
   *
   */
  
  #define BTSTACK_FILE__ "avrcp_media_item_iterator.c"
  
  
  // *****************************************************************************
  //
  // AVRCP Media Item Iterator 
  //
  // *****************************************************************************
  
  #include <stdint.h>
  #include <string.h>
  
  #include "classic/avrcp_media_item_iterator.h"
  #include "btstack_util.h"
  
  void avrcp_media_item_iterator_init(avrcp_media_item_context_t *context, uint16_t avrcp_media_item_len, const uint8_t * avrcp_media_item_data){
      context->data = avrcp_media_item_data;
      context->length = avrcp_media_item_len;
      context->offset = 0;
  }
  
  int  avrcp_media_item_iterator_has_more(const avrcp_media_item_context_t * context){
      return context->offset < context->length;
  }
  
  void avrcp_media_item_iterator_next(avrcp_media_item_context_t * context){
      int chunk_len = big_endian_read_16(context->data, context->offset + 6);
      int new_offset = context->offset + 2 + 2 + 4 + chunk_len;
      // avoid uint8_t overrun
      if (new_offset > 0xffff){
          new_offset = 0xffff;
      }
      context->offset = new_offset;
  }
  
  uint32_t avrcp_media_item_iterator_get_attr_id(const avrcp_media_item_context_t * context){
      return big_endian_read_32(context->data, context->offset);
  }
  
  uint16_t avrcp_media_item_iterator_get_attr_charset(const avrcp_media_item_context_t * context){
      return big_endian_read_16(context->data, context->offset + 4);
  }
  
  uint16_t avrcp_media_item_iterator_get_attr_value_len(const avrcp_media_item_context_t * context){
      return big_endian_read_16(context->data, context->offset + 6);
  }
  
  const uint8_t * avrcp_media_item_iterator_get_attr_value(const avrcp_media_item_context_t * context){
      return &context->data[context->offset + 8];
  }
  
  