| 1 | /* |
| 2 | * Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at) |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 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. |
| 10 | * |
| 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. |
| 15 | * |
| 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 |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * @file |
| 23 | * internal API header. |
| 24 | */ |
| 25 | |
| 26 | #ifndef POSTPROC_POSTPROCESS_INTERNAL_H |
| 27 | #define POSTPROC_POSTPROCESS_INTERNAL_H |
| 28 | |
| 29 | #include <string.h> |
| 30 | #include "libavutil/avutil.h" |
| 31 | #include "libavutil/intmath.h" |
| 32 | #include "libavutil/log.h" |
| 33 | #include "postprocess.h" |
| 34 | |
| 35 | #define V_DEBLOCK 0x01 |
| 36 | #define H_DEBLOCK 0x02 |
| 37 | #define DERING 0x04 |
| 38 | #define LEVEL_FIX 0x08 ///< Brightness & Contrast |
| 39 | |
| 40 | #define LUM_V_DEBLOCK V_DEBLOCK // 1 |
| 41 | #define LUM_H_DEBLOCK H_DEBLOCK // 2 |
| 42 | #define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16 |
| 43 | #define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32 |
| 44 | #define LUM_DERING DERING // 4 |
| 45 | #define CHROM_DERING (DERING<<4) // 64 |
| 46 | #define LUM_LEVEL_FIX LEVEL_FIX // 8 |
| 47 | #define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet) |
| 48 | |
| 49 | // Experimental vertical filters |
| 50 | #define V_X1_FILTER 0x0200 // 512 |
| 51 | #define V_A_DEBLOCK 0x0400 |
| 52 | |
| 53 | // Experimental horizontal filters |
| 54 | #define H_X1_FILTER 0x2000 // 8192 |
| 55 | #define H_A_DEBLOCK 0x4000 |
| 56 | |
| 57 | /// select between full y range (255-0) or standard one (234-16) |
| 58 | #define FULL_Y_RANGE 0x8000 // 32768 |
| 59 | |
| 60 | //Deinterlacing Filters |
| 61 | #define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536 |
| 62 | #define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072 |
| 63 | #define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet) |
| 64 | #define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144 |
| 65 | #define MEDIAN_DEINT_FILTER 0x80000 // 524288 |
| 66 | #define FFMPEG_DEINT_FILTER 0x400000 |
| 67 | #define LOWPASS5_DEINT_FILTER 0x800000 |
| 68 | |
| 69 | #define TEMP_NOISE_FILTER 0x100000 |
| 70 | #define FORCE_QUANT 0x200000 |
| 71 | #define BITEXACT 0x1000000 |
| 72 | |
| 73 | //use if you want a faster postprocessing code |
| 74 | //cannot differentiate between chroma & luma filters (both on or both off) |
| 75 | //obviously the -pp option on the command line has no effect except turning the here selected |
| 76 | //filters on |
| 77 | //#define COMPILE_TIME_MODE 0x77 |
| 78 | |
| 79 | #define CLIP av_clip_uint8 |
| 80 | |
| 81 | /** |
| 82 | * Postprocessing filter. |
| 83 | */ |
| 84 | struct PPFilter{ |
| 85 | const char *shortName; |
| 86 | const char *longName; |
| 87 | int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated |
| 88 | int minLumQuality; ///< minimum quality to turn luminance filtering on |
| 89 | int minChromQuality; ///< minimum quality to turn chrominance filtering on |
| 90 | int mask; ///< Bitmask to turn this filter on |
| 91 | }; |
| 92 | |
| 93 | /** |
| 94 | * Postprocessing mode. |
| 95 | */ |
| 96 | typedef struct PPMode{ |
| 97 | int lumMode; ///< activates filters for luminance |
| 98 | int chromMode; ///< activates filters for chrominance |
| 99 | int error; ///< non zero on error |
| 100 | |
| 101 | int minAllowedY; ///< for brightness correction |
| 102 | int maxAllowedY; ///< for brightness correction |
| 103 | float maxClippedThreshold; ///< amount of "black" you are willing to lose to get a brightness-corrected picture |
| 104 | |
| 105 | int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences) |
| 106 | |
| 107 | int baseDcDiff; |
| 108 | int flatnessThreshold; |
| 109 | |
| 110 | int forcedQuant; ///< quantizer if FORCE_QUANT is used |
| 111 | } PPMode; |
| 112 | |
| 113 | /** |
| 114 | * postprocess context. |
| 115 | */ |
| 116 | typedef struct PPContext{ |
| 117 | /** |
| 118 | * info on struct for av_log |
| 119 | */ |
| 120 | const AVClass *av_class; |
| 121 | |
| 122 | uint8_t *tempBlocks; ///<used for the horizontal code |
| 123 | |
| 124 | /** |
| 125 | * luma histogram. |
| 126 | * we need 64bit here otherwise we'll going to have a problem |
| 127 | * after watching a black picture for 5 hours |
| 128 | */ |
| 129 | uint64_t *yHistogram; |
| 130 | |
| 131 | DECLARE_ALIGNED(8, uint64_t, packedYOffset); |
| 132 | DECLARE_ALIGNED(8, uint64_t, packedYScale); |
| 133 | |
| 134 | /** Temporal noise reducing buffers */ |
| 135 | uint8_t *tempBlurred[3]; |
| 136 | int32_t *tempBlurredPast[3]; |
| 137 | |
| 138 | /** Temporary buffers for handling the last row(s) */ |
| 139 | uint8_t *tempDst; |
| 140 | uint8_t *tempSrc; |
| 141 | |
| 142 | uint8_t *deintTemp; |
| 143 | |
| 144 | DECLARE_ALIGNED(8, uint64_t, pQPb); |
| 145 | DECLARE_ALIGNED(8, uint64_t, pQPb2); |
| 146 | |
| 147 | DECLARE_ALIGNED(8, uint64_t, mmxDcOffset)[64]; |
| 148 | DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold)[64]; |
| 149 | |
| 150 | QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale |
| 151 | QP_STORE_T *nonBQPTable; |
| 152 | QP_STORE_T *forcedQPTable; |
| 153 | |
| 154 | int QP; |
| 155 | int nonBQP; |
| 156 | |
| 157 | int frameNum; |
| 158 | |
| 159 | int cpuCaps; |
| 160 | |
| 161 | int qpStride; ///<size of qp buffers (needed to realloc them if needed) |
| 162 | int stride; ///<size of some buffers (needed to realloc them if needed) |
| 163 | |
| 164 | int hChromaSubSample; |
| 165 | int vChromaSubSample; |
| 166 | |
| 167 | PPMode ppMode; |
| 168 | } PPContext; |
| 169 | |
| 170 | |
| 171 | static inline void linecpy(void *dest, const void *src, int lines, int stride) { |
| 172 | if (stride > 0) { |
| 173 | memcpy(dest, src, lines*stride); |
| 174 | } else { |
| 175 | memcpy((uint8_t*)dest+(lines-1)*stride, (const uint8_t*)src+(lines-1)*stride, -lines*stride); |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | #endif /* POSTPROC_POSTPROCESS_INTERNAL_H */ |