postprocess_internal.h

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/*
 * Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at)
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef FFMPEG_POSTPROCESS_INTERNAL_H
#define FFMPEG_POSTPROCESS_INTERNAL_H

#include "avutil.h"
#include "postprocess.h"

#define V_DEBLOCK       0x01
#define H_DEBLOCK       0x02
#define DERING          0x04
#define LEVEL_FIX       0x08 

#define LUM_V_DEBLOCK   V_DEBLOCK               //   1
#define LUM_H_DEBLOCK   H_DEBLOCK               //   2
#define CHROM_V_DEBLOCK (V_DEBLOCK<<4)          //  16
#define CHROM_H_DEBLOCK (H_DEBLOCK<<4)          //  32
#define LUM_DERING      DERING                  //   4
#define CHROM_DERING    (DERING<<4)             //  64
#define LUM_LEVEL_FIX   LEVEL_FIX               //   8
#define CHROM_LEVEL_FIX (LEVEL_FIX<<4)          // 128 (not implemented yet)

// Experimental vertical filters
#define V_X1_FILTER     0x0200                  // 512
#define V_A_DEBLOCK     0x0400

// Experimental horizontal filters
#define H_X1_FILTER     0x2000                  // 8192
#define H_A_DEBLOCK     0x4000

#define FULL_Y_RANGE    0x8000                  // 32768

//Deinterlacing Filters
#define        LINEAR_IPOL_DEINT_FILTER         0x10000 // 65536
#define        LINEAR_BLEND_DEINT_FILTER        0x20000 // 131072
#define        CUBIC_BLEND_DEINT_FILTER         0x8000  // (not implemented yet)
#define        CUBIC_IPOL_DEINT_FILTER          0x40000 // 262144
#define        MEDIAN_DEINT_FILTER              0x80000 // 524288
#define        FFMPEG_DEINT_FILTER              0x400000
#define        LOWPASS5_DEINT_FILTER            0x800000

#define TEMP_NOISE_FILTER               0x100000
#define FORCE_QUANT                     0x200000

#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
#    define PIC
#endif

//use if you want a faster postprocessing code
//cannot differentiate between chroma & luma filters (both on or both off)
//obviously the -pp option on the command line has no effect except turning the here selected
//filters on
//#define COMPILE_TIME_MODE 0x77

#if 1
static inline int CLIP(int a){
        if(a&256) return ((a)>>31)^(-1);
        else      return a;
}
//#define CLIP(a) (((a)&256) ? ((a)>>31)^(-1) : (a))
#elif 0
#define CLIP(a) clip_tab[a]
#else
#define CLIP(a) (a)
#endif

struct PPFilter{
        const char *shortName;
        const char *longName;
        int chromDefault;       
        int minLumQuality;      
        int minChromQuality;    
        int mask;               
};

typedef struct PPMode{
        int lumMode;                    
        int chromMode;                  
        int error;                      

        int minAllowedY;                
        int maxAllowedY;                
        float maxClippedThreshold;      

        int maxTmpNoise[3];             

        int baseDcDiff;
        int flatnessThreshold;

        int forcedQuant;                
} PPMode;

typedef struct PPContext{
        AVClass *av_class;

        uint8_t *tempBlocks; 

        uint64_t *yHistogram;

        DECLARE_ALIGNED(8, uint64_t, packedYOffset);
        DECLARE_ALIGNED(8, uint64_t, packedYScale);

        uint8_t *tempBlured[3];
        int32_t *tempBluredPast[3];

        uint8_t *tempDst;
        uint8_t *tempSrc;

        uint8_t *deintTemp;

        DECLARE_ALIGNED(8, uint64_t, pQPb);
        DECLARE_ALIGNED(8, uint64_t, pQPb2);

        DECLARE_ALIGNED(8, uint64_t, mmxDcOffset[64]);
        DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold[64]);

        QP_STORE_T *stdQPTable;       
        QP_STORE_T *nonBQPTable;
        QP_STORE_T *forcedQPTable;

        int QP;
        int nonBQP;

        int frameNum;

        int cpuCaps;

        int qpStride; 
        int stride;   

        int hChromaSubSample;
        int vChromaSubSample;

        PPMode ppMode;
} PPContext;


static inline void linecpy(void *dest, void *src, int lines, int stride)
{
        if (stride > 0) {
                memcpy(dest, src, lines*stride);
        } else {
                memcpy(dest+(lines-1)*stride, src+(lines-1)*stride, -lines*stride);
        }
}

#endif /* FFMPEG_POSTPROCESS_INTERNAL_H */

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