aom/vp8/common/header.h

52 строки
1.1 KiB
C

/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP8_COMMON_HEADER_H_
#define VP8_COMMON_HEADER_H_
#ifdef __cplusplus
extern "C" {
#endif
/* 24 bits total */
typedef struct
{
unsigned int type: 1;
unsigned int version: 3;
unsigned int show_frame: 1;
/* Allow 2^20 bytes = 8 megabits for first partition */
unsigned int first_partition_length_in_bytes: 19;
#ifdef PACKET_TESTING
unsigned int frame_number;
unsigned int update_gold: 1;
unsigned int uses_gold: 1;
unsigned int update_last: 1;
unsigned int uses_last: 1;
#endif
} VP8_HEADER;
#ifdef PACKET_TESTING
#define VP8_HEADER_SIZE 8
#else
#define VP8_HEADER_SIZE 3
#endif
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP8_COMMON_HEADER_H_