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 libpostproc/postprocess_internal.h
23 * internal api header.
26 #ifndef POSTPROCESS_POSTPROCESS_INTERNAL_H
27 #define POSTPROCESS_POSTPROCESS_INTERNAL_H
30 #include "libavutil/avutil.h"
31 #include "postprocess.h"
33 #define V_DEBLOCK 0x01
34 #define H_DEBLOCK 0x02
36 #define LEVEL_FIX 0x08 ///< Brightness & Contrast
38 #define LUM_V_DEBLOCK V_DEBLOCK // 1
39 #define LUM_H_DEBLOCK H_DEBLOCK // 2
40 #define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
41 #define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
42 #define LUM_DERING DERING // 4
43 #define CHROM_DERING (DERING<<4) // 64
44 #define LUM_LEVEL_FIX LEVEL_FIX // 8
45 #define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
47 // Experimental vertical filters
48 #define V_X1_FILTER 0x0200 // 512
49 #define V_A_DEBLOCK 0x0400
51 // Experimental horizontal filters
52 #define H_X1_FILTER 0x2000 // 8192
53 #define H_A_DEBLOCK 0x4000
55 /// select between full y range (255-0) or standart one (234-16)
56 #define FULL_Y_RANGE 0x8000 // 32768
58 //Deinterlacing Filters
59 #define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
60 #define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
61 #define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
62 #define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
63 #define MEDIAN_DEINT_FILTER 0x80000 // 524288
64 #define FFMPEG_DEINT_FILTER 0x400000
65 #define LOWPASS5_DEINT_FILTER 0x800000
67 #define TEMP_NOISE_FILTER 0x100000
68 #define FORCE_QUANT 0x200000
70 //use if you want a faster postprocessing code
71 //cannot differentiate between chroma & luma filters (both on or both off)
72 //obviously the -pp option on the command line has no effect except turning the here selected
74 //#define COMPILE_TIME_MODE 0x77
76 static inline int CLIP(int a
){
77 if(a
&256) return ((a
)>>31)^(-1);
81 * Postprocessng filter.
84 const char *shortName
;
86 int chromDefault
; ///< is chrominance filtering on by default if this filter is manually activated
87 int minLumQuality
; ///< minimum quality to turn luminance filtering on
88 int minChromQuality
; ///< minimum quality to turn chrominance filtering on
89 int mask
; ///< Bitmask to turn this filter on
95 typedef struct PPMode
{
96 int lumMode
; ///< acivates filters for luminance
97 int chromMode
; ///< acivates filters for chrominance
98 int error
; ///< non zero on error
100 int minAllowedY
; ///< for brigtness correction
101 int maxAllowedY
; ///< for brihtness correction
102 float maxClippedThreshold
; ///< amount of "black" u r willing to loose to get a brightness corrected picture
104 int maxTmpNoise
[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
107 int flatnessThreshold
;
109 int forcedQuant
; ///< quantizer if FORCE_QUANT is used
113 * postprocess context.
115 typedef struct PPContext
{
117 * info on struct for av_log
119 const AVClass
*av_class
;
121 uint8_t *tempBlocks
; ///<used for the horizontal code
125 * we need 64bit here otherwise we'll going to have a problem
126 * after watching a black picture for 5 hours
128 uint64_t *yHistogram
;
130 DECLARE_ALIGNED(8, uint64_t, packedYOffset
);
131 DECLARE_ALIGNED(8, uint64_t, packedYScale
);
133 /** Temporal noise reducing buffers */
134 uint8_t *tempBlurred
[3];
135 int32_t *tempBlurredPast
[3];
137 /** Temporary buffers for handling the last row(s) */
143 DECLARE_ALIGNED(8, uint64_t, pQPb
);
144 DECLARE_ALIGNED(8, uint64_t, pQPb2
);
146 DECLARE_ALIGNED(8, uint64_t, mmxDcOffset
[64]);
147 DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold
[64]);
149 QP_STORE_T
*stdQPTable
; ///< used to fix MPEG2 style qscale
150 QP_STORE_T
*nonBQPTable
;
151 QP_STORE_T
*forcedQPTable
;
160 int qpStride
; ///<size of qp buffers (needed to realloc them if needed)
161 int stride
; ///<size of some buffers (needed to realloc them if needed)
163 int hChromaSubSample
;
164 int vChromaSubSample
;
170 static inline void linecpy(void *dest
, const void *src
, int lines
, int stride
) {
172 memcpy(dest
, src
, lines
*stride
);
174 memcpy((uint8_t*)dest
+(lines
-1)*stride
, (const uint8_t*)src
+(lines
-1)*stride
, -lines
*stride
);
178 #endif /* POSTPROCESS_POSTPROCESS_INTERNAL_H */