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      1 /*
      2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #ifndef VPX_VP8_COMMON_HEADER_H_
     12 #define VPX_VP8_COMMON_HEADER_H_
     13 
     14 #ifdef __cplusplus
     15 extern "C" {
     16 #endif
     17 
     18 /* 24 bits total */
     19 typedef struct {
     20   unsigned int type : 1;
     21   unsigned int version : 3;
     22   unsigned int show_frame : 1;
     23 
     24   /* Allow 2^20 bytes = 8 megabits for first partition */
     25 
     26   unsigned int first_partition_length_in_bytes : 19;
     27 
     28 #ifdef PACKET_TESTING
     29   unsigned int frame_number;
     30   unsigned int update_gold : 1;
     31   unsigned int uses_gold : 1;
     32   unsigned int update_last : 1;
     33   unsigned int uses_last : 1;
     34 #endif
     35 
     36 } VP8_HEADER;
     37 
     38 #ifdef PACKET_TESTING
     39 #define VP8_HEADER_SIZE 8
     40 #else
     41 #define VP8_HEADER_SIZE 3
     42 #endif
     43 
     44 #ifdef __cplusplus
     45 }  // extern "C"
     46 #endif
     47 
     48 #endif  // VPX_VP8_COMMON_HEADER_H_
     49