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vpx/vp9/encoder/vp9_ratectrl.h

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Initial WebM release
2010-05-18 11:58:33 -04:00
/*
Use WebM in copyright notice for consistency Changes 'The VP8 project' to 'The WebM project', for consistency with other webmproject.org repositories. Fixes issue #97. Change-Id: I37c13ed5fbdb9d334ceef71c6350e9febed9bbba
2010-09-09 08:16:39 -04:00
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
Initial WebM release
2010-05-18 11:58:33 -04:00
*
cosmetics: trim trailing whitespace When the license headers were updated, they accidentally contained trailing whitespace, so unfortunately we have to touch all the files again. Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
2010-06-18 12:39:21 -04:00
* Use of this source code is governed by a BSD-style license
LICENSE: update with latest text Change-Id: Ieebea089095d9073b3a94932791099f614ce120c
2010-06-04 16:19:40 -04:00
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
cosmetics: trim trailing whitespace When the license headers were updated, they accidentally contained trailing whitespace, so unfortunately we have to touch all the files again. Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
2010-06-18 12:39:21 -04:00
* in the file PATENTS. All contributing project authors may
LICENSE: update with latest text Change-Id: Ieebea089095d9073b3a94932791099f614ce120c
2010-06-04 16:19:40 -04:00
* be found in the AUTHORS file in the root of the source tree.
Initial WebM release
2010-05-18 11:58:33 -04:00
*/
google style guide include guards Change-Id: I2c252f3ddcc99e96c1f5d3dab8bcb25a2a3637ea
2012-11-29 16:36:10 -08:00
#ifndef VP9_ENCODER_VP9_RATECTRL_H_
#define VP9_ENCODER_VP9_RATECTRL_H_
Initial WebM release
2010-05-18 11:58:33 -04:00
fixed includes to be fully specified Change-Id: Ia1cce221f8511561b9cbd8edb7726fbc286ff243
2012-11-28 10:41:40 -08:00
#include "vp9/encoder/vp9_onyx_int.h"
Initial WebM release
2010-05-18 11:58:33 -04:00
Allow for frame overheads in min frame bandwidth. Change-Id: I6ade229ff400fe492709010ac5bada37f8afa73e
2012-03-02 01:24:30 +00:00
#define FRAME_OVERHEAD_BITS 200
Code cleanup. Removing redundant 'extern' keywords and parentheses, fixing indentation, making variable names lower case, using short expressions x *= c instead of x = x * c, minor code simplifications. Change-Id: If6a25fcf306d1db26e90d27e3c24a32735c607de
2013-02-22 11:03:14 -08:00
void vp9_save_coding_context(VP9_COMP *cpi);
void vp9_restore_coding_context(VP9_COMP *cpi);
Change name of common top-level structures from VP8 to VP9. This change encompasses VP8_PTR, VP8_COMP, VP8D_COMP, VP8_COMMON, VP8Decompressor and VP8Common. Change-Id: I514ef4ad4e682370f36d656af1c09ee20da216ad
2012-10-30 17:53:32 -07:00
Code cleanup. Removing redundant 'extern' keywords and parentheses, fixing indentation, making variable names lower case, using short expressions x *= c instead of x = x * c, minor code simplifications. Change-Id: If6a25fcf306d1db26e90d27e3c24a32735c607de
2013-02-22 11:03:14 -08:00
void vp9_setup_key_frame(VP9_COMP *cpi);
void vp9_update_rate_correction_factors(VP9_COMP *cpi, int damp_var);
int vp9_regulate_q(VP9_COMP *cpi, int target_bits_per_frame);
void vp9_adjust_key_frame_context(VP9_COMP *cpi);
void vp9_compute_frame_size_bounds(VP9_COMP *cpi,
int *frame_under_shoot_limit,
int *frame_over_shoot_limit);
Initial WebM release
2010-05-18 11:58:33 -04:00
Move pick_frame_size() to ratectrl.c This is a first step in cleaning up the redundancies between vp8_calc_{auto_,}iframe_target_size. The pick_frame_size() function is moved to ratectrl.c, and made to be the primary interface. This means that the various calc_*_target_size functions can be made private. Change-Id: I66a9a62a5f9c23c818015e03f92f3757bf3bb5c8
2011-04-25 15:02:54 -04:00
// return of 0 means drop frame
Code cleanup. Removing redundant 'extern' keywords and parentheses, fixing indentation, making variable names lower case, using short expressions x *= c instead of x = x * c, minor code simplifications. Change-Id: If6a25fcf306d1db26e90d27e3c24a32735c607de
2013-02-22 11:03:14 -08:00
int vp9_pick_frame_size(VP9_COMP *cpi);
Move pick_frame_size() to ratectrl.c This is a first step in cleaning up the redundancies between vp8_calc_{auto_,}iframe_target_size. The pick_frame_size() function is moved to ratectrl.c, and made to be the primary interface. This means that the various calc_*_target_size functions can be made private. Change-Id: I66a9a62a5f9c23c818015e03f92f3757bf3bb5c8
2011-04-25 15:02:54 -04:00
Code cleanup. Removing redundant 'extern' keywords and parentheses, fixing indentation, making variable names lower case, using short expressions x *= c instead of x = x * c, minor code simplifications. Change-Id: If6a25fcf306d1db26e90d27e3c24a32735c607de
2013-02-22 11:03:14 -08:00
double vp9_convert_qindex_to_q(int qindex);
int vp9_gfboost_qadjust(int qindex);
Minor rate control refactoring and experiments. Some minor refactoring code relating to estimates of bits per MB at a given Q and estimating the allowed Q range. Most of the changes here were included in a previous commit. This commit seeks to separate out the refactoring from more the material changes. Two #define control flags have been added for experimentation. ONE_SHOT_Q_ESTIMATE force the two pass encoder to use its initial Q range estimate for the whole clip even if this results in a miss on the target data rate. In effect this tightens the Q range seen at the expense of rate control accuracy. DISABLE_RC_LONG_TERM_MEM is a related flag that disables the long term memory in the rate control. Local adjustments are still made to try and better hit the rate target on a per frame basis but the impact of rate control misses is not propagated to the remainder of the clip. This means that for example an overshoot early on will not cause frames later in the clip to be starved of bits. Again the result of this relaxation amy be less rate control accuracy especially on short clips. The flags are disabled by default for now. Change-Id: I7482f980146d8ea033b5d50cc689f772e4bd119e
2013-02-25 12:36:38 +00:00
extern int vp9_bits_per_mb(FRAME_TYPE frame_type, int qindex,
double correction_factor);
Change name of common top-level structures from VP8 to VP9. This change encompasses VP8_PTR, VP8_COMP, VP8D_COMP, VP8_COMMON, VP8Decompressor and VP8Common. Change-Id: I514ef4ad4e682370f36d656af1c09ee20da216ad
2012-10-30 17:53:32 -07:00
void vp9_setup_inter_frame(VP9_COMP *cpi);
Removal of Qindex LUTS. One of the problems arising when tweaking or adjusting the quantizer tables is that there are a lot of look up tables that depend on the QINDEX. Any adjustment to the link between QINDEX and real quantizer therefore tends to break aspects of for example the rate control. In this check in I have replaced several of the look up tables with functions that approximate the same results as the old Q luts but use a formulaic approach based on real Q values rather than QIndex. This should hopefully make it easier to experiment with changes to the Q tables without always having to go through and hand optimize a set of look up tables. Once things stabilize we may choose to re-instate luts for the sake of performance. Patch 2: Addressed Ronald's comments. vp8_init_me_luts() Added so luts only initialized once. Change-Id: Ic80db2212d2fd01e08e8cb5c7dca1fda1102be57
2011-11-21 15:45:10 +00:00
Use standard integer types for pixel values and coefficients. For coefficients, use int16_t (instead of short); for pixel values in 16-bit intermediates, use uint16_t (instead of unsigned short); for all others, use uint8_t (instead of unsigned char). Change-Id: I3619cd9abf106c3742eccc2e2f5e89a62774f7da
2012-12-18 15:31:19 -08:00
#endif // VP9_ENCODER_VP9_RATECTRL_H_
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