2 * Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at)
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 * @file postprocess_internal.h
23 * internal api header.
28 #define V_DEBLOCK 0x01
29 #define H_DEBLOCK 0x02
31 #define LEVEL_FIX 0x08 ///< Brightness & Contrast
33 #define LUM_V_DEBLOCK V_DEBLOCK // 1
34 #define LUM_H_DEBLOCK H_DEBLOCK // 2
35 #define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
36 #define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
37 #define LUM_DERING DERING // 4
38 #define CHROM_DERING (DERING<<4) // 64
39 #define LUM_LEVEL_FIX LEVEL_FIX // 8
40 #define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
42 // Experimental vertical filters
43 #define V_X1_FILTER 0x0200 // 512
44 #define V_A_DEBLOCK 0x0400
46 // Experimental horizontal filters
47 #define H_X1_FILTER 0x2000 // 8192
48 #define H_A_DEBLOCK 0x4000
50 /// select between full y range (255-0) or standart one (234-16)
51 #define FULL_Y_RANGE 0x8000 // 32768
53 //Deinterlacing Filters
54 #define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
55 #define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
56 #define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
57 #define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
58 #define MEDIAN_DEINT_FILTER 0x80000 // 524288
59 #define FFMPEG_DEINT_FILTER 0x400000
60 #define LOWPASS5_DEINT_FILTER 0x800000
62 #define TEMP_NOISE_FILTER 0x100000
63 #define FORCE_QUANT 0x200000
65 #if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
69 //use if u want a faster postprocessing code
70 //cant differentiate between chroma & luma filters (both on or both off)
71 //obviosly the -pp option at the commandline has no effect except turning the here selected
73 //#define COMPILE_TIME_MODE 0x77
76 static inline int CLIP(int a){
77 if(a&256) return ((a)>>31)^(-1);
80 //#define CLIP(a) (((a)&256) ? ((a)>>31)^(-1) : (a))
82 #define CLIP(a) clip_tab[a]
87 * Postprocessng filter.
90 const char *shortName;
92 int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
93 int minLumQuality; ///< minimum quality to turn luminance filtering on
94 int minChromQuality; ///< minimum quality to turn chrominance filtering on
95 int mask; ///< Bitmask to turn this filter on
101 typedef struct PPMode{
102 int lumMode; ///< acivates filters for luminance
103 int chromMode; ///< acivates filters for chrominance
104 int error; ///< non zero on error
106 int minAllowedY; ///< for brigtness correction
107 int maxAllowedY; ///< for brihtness correction
108 float maxClippedThreshold; ///< amount of "black" u r willing to loose to get a brightness corrected picture
110 int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
113 int flatnessThreshold;
115 int forcedQuant; ///< quantizer if FORCE_QUANT is used
119 * postprocess context.
121 typedef struct PPContext{
123 * info on struct for av_log
127 uint8_t *tempBlocks; ///<used for the horizontal code
131 * we need 64bit here otherwise we'll going to have a problem
132 * after watching a black picture for 5 hours
134 uint64_t *yHistogram;
136 DECLARE_ALIGNED(8, uint64_t, packedYOffset);
137 DECLARE_ALIGNED(8, uint64_t, packedYScale);
139 /** Temporal noise reducing buffers */
140 uint8_t *tempBlured[3];
141 int32_t *tempBluredPast[3];
143 /** Temporary buffers for handling the last row(s) */
149 DECLARE_ALIGNED(8, uint64_t, pQPb);
150 DECLARE_ALIGNED(8, uint64_t, pQPb2);
152 DECLARE_ALIGNED(8, uint64_t, mmxDcOffset[64]);
153 DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold[64]);
155 QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
156 QP_STORE_T *nonBQPTable;
157 QP_STORE_T *forcedQPTable;
166 int qpStride; ///<size of qp buffers (needed to realloc them if needed)
167 int stride; ///<size of some buffers (needed to realloc them if needed)
169 int hChromaSubSample;
170 int vChromaSubSample;
176 static inline void linecpy(void *dest, void *src, int lines, int stride)
179 memcpy(dest, src, lines*stride);
181 memcpy(dest+(lines-1)*stride, src+(lines-1)*stride, -lines*stride);