quicktime/ffmpeg/libavcodec/libpostproc/postprocess_internal.h

   1 /*
   2     Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at)
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17 */
  18
  19 /**
  20  * @file postprocess_internal.h
  21  * internal api header.
  22  */
  23
  24 #define V_DEBLOCK       0x01
  25 #define H_DEBLOCK       0x02
  26 #define DERING          0x04
  27 #define LEVEL_FIX       0x08 ///< Brightness & Contrast
  28
  29 #define LUM_V_DEBLOCK   V_DEBLOCK               //   1
  30 #define LUM_H_DEBLOCK   H_DEBLOCK               //   2
  31 #define CHROM_V_DEBLOCK (V_DEBLOCK<<4)          //  16
  32 #define CHROM_H_DEBLOCK (H_DEBLOCK<<4)          //  32
  33 #define LUM_DERING      DERING                  //   4
  34 #define CHROM_DERING    (DERING<<4)             //  64
  35 #define LUM_LEVEL_FIX   LEVEL_FIX               //   8
  36 #define CHROM_LEVEL_FIX (LEVEL_FIX<<4)          // 128 (not implemented yet)
  37
  38 // Experimental vertical filters
  39 #define V_X1_FILTER     0x0200                  // 512
  40 #define V_A_DEBLOCK     0x0400
  41
  42 // Experimental horizontal filters
  43 #define H_X1_FILTER     0x2000                  // 8192
  44 #define H_A_DEBLOCK     0x4000
  45
  46 /// select between full y range (255-0) or standart one (234-16)
  47 #define FULL_Y_RANGE    0x8000                  // 32768
  48
  49 //Deinterlacing Filters
  50 #define LINEAR_IPOL_DEINT_FILTER        0x10000 // 65536
  51 #define LINEAR_BLEND_DEINT_FILTER       0x20000 // 131072
  52 #define CUBIC_BLEND_DEINT_FILTER        0x8000  // (not implemented yet)
  53 #define CUBIC_IPOL_DEINT_FILTER         0x40000 // 262144
  54 #define MEDIAN_DEINT_FILTER             0x80000 // 524288
  55 #define FFMPEG_DEINT_FILTER             0x400000
  56 #define LOWPASS5_DEINT_FILTER           0x800000
  57
  58 #define TEMP_NOISE_FILTER               0x100000
  59 #define FORCE_QUANT                     0x200000
  60
  61 //use if u want a faster postprocessing code
  62 //cant differentiate between chroma & luma filters (both on or both off)
  63 //obviosly the -pp option at the commandline has no effect except turning the here selected
  64 //filters on
  65 //#define COMPILE_TIME_MODE 0x77
  66
  67 #if 1
  68 static inline int CLIP(int a){
  69         if(a&256) return ((a)>>31)^(-1);
  70         else      return a;
  71 }
  72 //#define CLIP(a) (((a)&256) ? ((a)>>31)^(-1) : (a))
  73 #elif 0
  74 #define CLIP(a) clip_tab[a]
  75 #else
  76 #define CLIP(a) (a)
  77 #endif
  78 /**
  79  * Postprocessng filter.
  80  */
  81 struct PPFilter{
  82         char *shortName;
  83         char *longName;
  84         int chromDefault;       ///< is chrominance filtering on by default if this filter is manually activated
  85         int minLumQuality;      ///< minimum quality to turn luminance filtering on
  86         int minChromQuality;    ///< minimum quality to turn chrominance filtering on
  87         int mask;               ///< Bitmask to turn this filter on
  88 };
  89
  90 /**
  91  * Postprocessng mode.
  92  */
  93 typedef struct PPMode{
  94         int lumMode;                    ///< acivates filters for luminance
  95         int chromMode;                  ///< acivates filters for chrominance
  96         int error;                      ///< non zero on error
  97
  98         int minAllowedY;                ///< for brigtness correction
  99         int maxAllowedY;                ///< for brihtness correction
 100         float maxClippedThreshold;      ///< amount of "black" u r willing to loose to get a brightness corrected picture
 101
 102         int maxTmpNoise[3];             ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
 103
 104         int baseDcDiff;
 105         int flatnessThreshold;
 106
 107         int forcedQuant;                ///< quantizer if FORCE_QUANT is used
 108 } PPMode;
 109
 110 /**
 111  * postprocess context.
 112  */
 113 typedef struct PPContext{
 114         uint8_t *tempBlocks; ///<used for the horizontal code
 115
 116         /**
 117          * luma histogram.
 118          * we need 64bit here otherwise we'll going to have a problem
 119          * after watching a black picture for 5 hours
 120          */
 121         uint64_t *yHistogram;
 122
 123         uint64_t __attribute__((aligned(8))) packedYOffset;
 124         uint64_t __attribute__((aligned(8))) packedYScale;
 125
 126         /** Temporal noise reducing buffers */
 127         uint8_t *tempBlured[3];
 128         int32_t *tempBluredPast[3];
 129
 130         /** Temporary buffers for handling the last row(s) */
 131         uint8_t *tempDst;
 132         uint8_t *tempSrc;
 133
 134         uint8_t *deintTemp;
 135
 136         uint64_t __attribute__((aligned(8))) pQPb;
 137         uint64_t __attribute__((aligned(8))) pQPb2;
 138
 139         uint64_t __attribute__((aligned(8))) mmxDcOffset[64];
 140         uint64_t __attribute__((aligned(8))) mmxDcThreshold[64];
 141
 142         QP_STORE_T *stdQPTable;       ///< used to fix MPEG2 style qscale
 143         QP_STORE_T *nonBQPTable;
 144         QP_STORE_T *forcedQPTable;
 145
 146         int QP;
 147         int nonBQP;
 148
 149         int frameNum;
 150
 151         int cpuCaps;
 152
 153         int qpStride; ///<size of qp buffers (needed to realloc them if needed)
 154         int stride;   ///<size of some buffers (needed to realloc them if needed)
 155
 156         int hChromaSubSample;
 157         int vChromaSubSample;
 158
 159         PPMode ppMode;
 160 } PPContext;
 161
 162
 163 static inline void linecpy(void *dest, void *src, int lines, int stride)
 164 {
 165         if (stride > 0) {
 166                 memcpy(dest, src, lines*stride);
 167         } else {
 168                 memcpy(dest+(lines-1)*stride, src+(lines-1)*stride, -lines*stride);
 169         }
 170 }