vpx/vp9/encoder/vp9_ratectrl.h

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/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
* 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.
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*/
#ifndef VP9_ENCODER_VP9_RATECTRL_H_
#define VP9_ENCODER_VP9_RATECTRL_H_
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#include "vp9/encoder/vp9_onyx_int.h"
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#define FRAME_OVERHEAD_BITS 200
void vp9_save_coding_context(VP9_COMP *cpi);
void vp9_restore_coding_context(VP9_COMP *cpi);
void vp9_setup_key_frame(VP9_COMP *cpi);
void vp9_setup_inter_frame(VP9_COMP *cpi);
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double vp9_convert_qindex_to_q(int qindex);
// Updates rate correction factors
void vp9_rc_update_rate_correction_factors(VP9_COMP *cpi, int damp_var);
// initialize luts for minq
void vp9_rc_init_minq_luts(void);
// return of 0 means drop frame
// Changes rc.this_frame_target and rc.sb64_rate_target
int vp9_rc_pick_frame_size_and_bounds(VP9_COMP *cpi,
int *frame_under_shoot_limit,
int *frame_over_shoot_limit);
// Picks q and q bounds given the target for bits
int vp9_rc_pick_q_and_adjust_q_bounds(VP9_COMP *cpi,
int * bottom_index,
int * top_index);
// Estimates q to achieve a target bits per frame
int vp9_rc_regulate_q(const VP9_COMP *cpi, int target_bits_per_frame);
// Post encode update of the rate control parameters based
// on bytes used and q used for the frame
void vp9_rc_postencode_update(VP9_COMP *cpi,
uint64_t bytes_used,
int q_used);
// estimates bits per mb for a given qindex and correction factor
int vp9_rc_bits_per_mb(FRAME_TYPE frame_type, int qindex,
double correction_factor);
// Post encode update of the rate control parameters for 2-pass
void vp9_twopass_postencode_update(VP9_COMP *cpi,
uint64_t bytes_used);
#endif // VP9_ENCODER_VP9_RATECTRL_H_