/*
 *  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 VP9_ENCODER_VP9_BITSTREAM_H_
#define VP9_ENCODER_VP9_BITSTREAM_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "vpx_ports/mem_ops.h"
#include "vp9/encoder/vp9_encoder.h"

void vp9_entropy_mode_init();

#if CONFIG_ROW_TILE
// In the tile header, 1 bit is used for TCM, and the rest bits are used for
// TDS. But, no TCM bit in tile column header.
// type 0: tile header; type 1: tile column header.
#define ONE_BYTE_LIMIT(type)    ((type) ? 255 : 127)
#define TWO_BYTE_LIMIT(type)    ((type) ? 65535 : 32767)
#define THREE_BYTE_LIMIT(type)  ((type) ? 16777215 : 8388607)
#define ONE_BYTE_THRESH(type) \
  (ONE_BYTE_LIMIT(type) - (ONE_BYTE_LIMIT(type) >> 2))
#define TWO_BYTE_THRESH(type) \
  (TWO_BYTE_LIMIT(type) - (TWO_BYTE_LIMIT(type) >> 2))
#define THREE_BYTE_THRESH(type) \
  (THREE_BYTE_LIMIT(type) - (THREE_BYTE_LIMIT(type) >> 2))

typedef void (*MemPut)(void *, MEM_VALUE_T);
int vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, size_t *size,
                       int final_packing);
#else
void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, size_t *size);
#endif

static INLINE int vp9_preserve_existing_gf(VP9_COMP *cpi) {
  return !cpi->multi_arf_allowed && cpi->refresh_golden_frame &&
         cpi->rc.is_src_frame_alt_ref;
}

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VP9_ENCODER_VP9_BITSTREAM_H_