forked from KolibriOS/kolibrios
180 lines
5.6 KiB
C
180 lines
5.6 KiB
C
/*
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* Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at)
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* internal API header.
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*/
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#ifndef POSTPROC_POSTPROCESS_INTERNAL_H
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#define POSTPROC_POSTPROCESS_INTERNAL_H
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#include <string.h>
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#include "libavutil/avutil.h"
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#include "libavutil/intmath.h"
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#include "libavutil/log.h"
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#include "postprocess.h"
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#define V_DEBLOCK 0x01
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#define H_DEBLOCK 0x02
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#define DERING 0x04
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#define LEVEL_FIX 0x08 ///< Brightness & Contrast
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#define LUM_V_DEBLOCK V_DEBLOCK // 1
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#define LUM_H_DEBLOCK H_DEBLOCK // 2
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#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
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#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
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#define LUM_DERING DERING // 4
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#define CHROM_DERING (DERING<<4) // 64
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#define LUM_LEVEL_FIX LEVEL_FIX // 8
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#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
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// Experimental vertical filters
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#define V_X1_FILTER 0x0200 // 512
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#define V_A_DEBLOCK 0x0400
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// Experimental horizontal filters
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#define H_X1_FILTER 0x2000 // 8192
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#define H_A_DEBLOCK 0x4000
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/// select between full y range (255-0) or standard one (234-16)
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#define FULL_Y_RANGE 0x8000 // 32768
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//Deinterlacing Filters
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#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
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#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
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#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
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#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
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#define MEDIAN_DEINT_FILTER 0x80000 // 524288
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#define FFMPEG_DEINT_FILTER 0x400000
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#define LOWPASS5_DEINT_FILTER 0x800000
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#define TEMP_NOISE_FILTER 0x100000
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#define FORCE_QUANT 0x200000
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#define BITEXACT 0x1000000
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//use if you want a faster postprocessing code
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//cannot differentiate between chroma & luma filters (both on or both off)
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//obviously the -pp option on the command line has no effect except turning the here selected
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//filters on
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//#define COMPILE_TIME_MODE 0x77
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#define CLIP av_clip_uint8
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/**
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* Postprocessing filter.
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*/
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struct PPFilter{
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const char *shortName;
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const char *longName;
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int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
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int minLumQuality; ///< minimum quality to turn luminance filtering on
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int minChromQuality; ///< minimum quality to turn chrominance filtering on
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int mask; ///< Bitmask to turn this filter on
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};
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/**
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* Postprocessing mode.
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*/
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typedef struct PPMode{
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int lumMode; ///< activates filters for luminance
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int chromMode; ///< activates filters for chrominance
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int error; ///< non zero on error
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int minAllowedY; ///< for brightness correction
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int maxAllowedY; ///< for brightness correction
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float maxClippedThreshold; ///< amount of "black" you are willing to lose to get a brightness-corrected picture
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int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
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int baseDcDiff;
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int flatnessThreshold;
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int forcedQuant; ///< quantizer if FORCE_QUANT is used
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} PPMode;
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/**
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* postprocess context.
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*/
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typedef struct PPContext{
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/**
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* info on struct for av_log
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*/
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const AVClass *av_class;
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uint8_t *tempBlocks; ///<used for the horizontal code
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/**
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* luma histogram.
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* we need 64bit here otherwise we'll going to have a problem
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* after watching a black picture for 5 hours
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*/
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uint64_t *yHistogram;
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DECLARE_ALIGNED(8, uint64_t, packedYOffset);
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DECLARE_ALIGNED(8, uint64_t, packedYScale);
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/** Temporal noise reducing buffers */
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uint8_t *tempBlurred[3];
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int32_t *tempBlurredPast[3];
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/** Temporary buffers for handling the last row(s) */
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uint8_t *tempDst;
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uint8_t *tempSrc;
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uint8_t *deintTemp;
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DECLARE_ALIGNED(8, uint64_t, pQPb);
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DECLARE_ALIGNED(8, uint64_t, pQPb2);
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DECLARE_ALIGNED(8, uint64_t, mmxDcOffset)[64];
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DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold)[64];
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QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
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QP_STORE_T *nonBQPTable;
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QP_STORE_T *forcedQPTable;
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int QP;
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int nonBQP;
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int frameNum;
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int cpuCaps;
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int qpStride; ///<size of qp buffers (needed to realloc them if needed)
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int stride; ///<size of some buffers (needed to realloc them if needed)
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int hChromaSubSample;
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int vChromaSubSample;
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PPMode ppMode;
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} PPContext;
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static inline void linecpy(void *dest, const void *src, int lines, int stride) {
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if (stride > 0) {
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memcpy(dest, src, lines*stride);
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} else {
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memcpy((uint8_t*)dest+(lines-1)*stride, (const uint8_t*)src+(lines-1)*stride, -lines*stride);
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}
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}
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#endif /* POSTPROC_POSTPROCESS_INTERNAL_H */
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