vpx/vp9/encoder/vp9_quantize.h

92 lines
2.8 KiB
C
Raw Normal View History

2010-05-18 17:58:33 +02:00
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
2010-05-18 17:58:33 +02:00
*
* 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.
2010-05-18 17:58:33 +02:00
*/
#ifndef VP9_ENCODER_VP9_QUANTIZE_H_
#define VP9_ENCODER_VP9_QUANTIZE_H_
2010-05-18 17:58:33 +02:00
#include "vp9/encoder/vp9_block.h"
2010-05-18 17:58:33 +02:00
#define prototype_quantize_block(sym) \
void (sym)(BLOCK *b,BLOCKD *d)
2010-05-18 17:58:33 +02:00
#define prototype_quantize_block_pair(sym) \
void (sym)(BLOCK *b1, BLOCK *b2, BLOCKD *d1, BLOCKD *d2)
#define prototype_quantize_mb(sym) \
void (sym)(MACROBLOCK *x)
#if ARCH_X86 || ARCH_X86_64
#include "x86/vp9_quantize_x86.h"
#endif
#define prototype_quantize_block_type(sym) \
void (sym)(BLOCK *b, BLOCKD *d, TX_TYPE type)
extern prototype_quantize_block_type(vp9_ht_quantize_b_4x4);
2010-05-18 17:58:33 +02:00
#ifndef vp9_quantize_quantb_4x4
#define vp9_quantize_quantb_4x4 vp9_regular_quantize_b_4x4
#endif
extern prototype_quantize_block(vp9_quantize_quantb_4x4);
#ifndef vp9_quantize_quantb_4x4_pair
#define vp9_quantize_quantb_4x4_pair vp9_regular_quantize_b_4x4_pair
#endif
extern prototype_quantize_block_pair(vp9_quantize_quantb_4x4_pair);
#ifndef vp9_quantize_quantb_8x8
#define vp9_quantize_quantb_8x8 vp9_regular_quantize_b_8x8
#endif
extern prototype_quantize_block(vp9_quantize_quantb_8x8);
#ifndef vp9_quantize_quantb_16x16
#define vp9_quantize_quantb_16x16 vp9_regular_quantize_b_16x16
#endif
extern prototype_quantize_block(vp9_quantize_quantb_16x16);
#ifndef vp9_quantize_mb_4x4
#define vp9_quantize_mb_4x4 vp9_quantize_mb_4x4_c
#endif
extern prototype_quantize_mb(vp9_quantize_mb_4x4);
void vp9_quantize_mb_8x8(MACROBLOCK *x);
#ifndef vp9_quantize_mbuv_4x4
#define vp9_quantize_mbuv_4x4 vp9_quantize_mbuv_4x4_c
#endif
extern prototype_quantize_mb(vp9_quantize_mbuv_4x4);
#ifndef vp9_quantize_mby_4x4
#define vp9_quantize_mby_4x4 vp9_quantize_mby_4x4_c
#endif
extern prototype_quantize_mb(vp9_quantize_mby_4x4);
extern prototype_quantize_mb(vp9_quantize_mby_8x8);
extern prototype_quantize_mb(vp9_quantize_mbuv_8x8);
void vp9_quantize_mb_16x16(MACROBLOCK *x);
extern prototype_quantize_block(vp9_quantize_quantb_16x16);
extern prototype_quantize_mb(vp9_quantize_mby_16x16);
32x32 transform for superblocks. This adds Debargha's DCT/DWT hybrid and a regular 32x32 DCT, and adds code all over the place to wrap that in the bitstream/encoder/decoder/RD. Some implementation notes (these probably need careful review): - token range is extended by 1 bit, since the value range out of this transform is [-16384,16383]. - the coefficients coming out of the FDCT are manually scaled back by 1 bit, or else they won't fit in int16_t (they are 17 bits). Because of this, the RD error scoring does not right-shift the MSE score by two (unlike for 4x4/8x8/16x16). - to compensate for this loss in precision, the quantizer is halved also. This is currently a little hacky. - FDCT and IDCT is double-only right now. Needs a fixed-point impl. - There are no default probabilities for the 32x32 transform yet; I'm simply using the 16x16 luma ones. A future commit will add newly generated probabilities for all transforms. - No ADST version. I don't think we'll add one for this level; if an ADST is desired, transform-size selection can scale back to 16x16 or lower, and use an ADST at that level. Additional notes specific to Debargha's DWT/DCT hybrid: - coefficient scale is different for the top/left 16x16 (DCT-over-DWT) block than for the rest (DWT pixel differences) of the block. Therefore, RD error scoring isn't easily scalable between coefficient and pixel domain. Thus, unfortunately, we need to compute the RD distortion in the pixel domain until we figure out how to scale these appropriately. Change-Id: I00386f20f35d7fabb19aba94c8162f8aee64ef2b
2012-12-07 23:45:05 +01:00
void vp9_quantize_sby_32x32(MACROBLOCK *x);
void vp9_quantize_sbuv_16x16(MACROBLOCK *x);
struct VP9_COMP;
extern void vp9_set_quantizer(struct VP9_COMP *cpi, int Q);
extern void vp9_frame_init_quantizer(struct VP9_COMP *cpi);
extern void vp9_update_zbin_extra(struct VP9_COMP *cpi, MACROBLOCK *x);
extern void vp9_mb_init_quantizer(struct VP9_COMP *cpi, MACROBLOCK *x);
extern void vp9_init_quantizer(struct VP9_COMP *cpi);
#endif // VP9_ENCODER_VP9_QUANTIZE_H_