libavcodec/libpostproc ---> libpostproc

Originally committed as revision 5440 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 170 insertions, 0 deletions

diff --git a/libpostproc/postprocess_internal.h b/libpostproc/postprocess_internal.h
new file mode 100644
index 0000000000..bab4c841ca
--- /dev/null
+++ b/libpostproc/postprocess_internal.h
@@ -0,0 +1,170 @@
+/*
+    Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at)
+
+    This program 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.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+/**
+ * @file postprocess_internal.h
+ * internal api header.
+ */
+
+#define V_DEBLOCK       0x01
+#define H_DEBLOCK       0x02
+#define DERING          0x04
+#define LEVEL_FIX       0x08 ///< Brightness & Contrast
+
+#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
+
+/// select between full y range (255-0) or standart one (234-16)
+#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
+
+//use if u want a faster postprocessing code
+//cant differentiate between chroma & luma filters (both on or both off)
+//obviosly the -pp option at the commandline 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
+/**
+ * Postprocessng filter.
+ */
+struct PPFilter{
+        char *shortName;
+        char *longName;
+        int chromDefault;       ///< is chrominance filtering on by default if this filter is manually activated
+        int minLumQuality;      ///< minimum quality to turn luminance filtering on
+        int minChromQuality;    ///< minimum quality to turn chrominance filtering on
+        int mask;               ///< Bitmask to turn this filter on
+};
+
+/**
+ * Postprocessng mode.
+ */
+typedef struct PPMode{
+        int lumMode;                    ///< acivates filters for luminance
+        int chromMode;                  ///< acivates filters for chrominance
+        int error;                      ///< non zero on error
+
+        int minAllowedY;                ///< for brigtness correction
+        int maxAllowedY;                ///< for brihtness correction
+        float maxClippedThreshold;      ///< amount of "black" u r willing to loose to get a brightness corrected picture
+
+        int maxTmpNoise[3];             ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
+
+        int baseDcDiff;
+        int flatnessThreshold;
+
+        int forcedQuant;                ///< quantizer if FORCE_QUANT is used
+} PPMode;
+
+/**
+ * postprocess context.
+ */
+typedef struct PPContext{
+        uint8_t *tempBlocks; ///<used for the horizontal code
+
+        /**
+         * luma histogram.
+         * we need 64bit here otherwise we'll going to have a problem
+         * after watching a black picture for 5 hours
+         */
+        uint64_t *yHistogram;
+
+        uint64_t __attribute__((aligned(8))) packedYOffset;
+        uint64_t __attribute__((aligned(8))) packedYScale;
+
+        /** Temporal noise reducing buffers */
+        uint8_t *tempBlured[3];
+        int32_t *tempBluredPast[3];
+
+        /** Temporary buffers for handling the last row(s) */
+        uint8_t *tempDst;
+        uint8_t *tempSrc;
+
+        uint8_t *deintTemp;
+
+        uint64_t __attribute__((aligned(8))) pQPb;
+        uint64_t __attribute__((aligned(8))) pQPb2;
+
+        uint64_t __attribute__((aligned(8))) mmxDcOffset[64];
+        uint64_t __attribute__((aligned(8))) mmxDcThreshold[64];
+
+        QP_STORE_T *stdQPTable;       ///< used to fix MPEG2 style qscale
+        QP_STORE_T *nonBQPTable;
+        QP_STORE_T *forcedQPTable;
+
+        int QP;
+        int nonBQP;
+
+        int frameNum;
+
+        int cpuCaps;
+
+        int qpStride; ///<size of qp buffers (needed to realloc them if needed)
+        int stride;   ///<size of some buffers (needed to realloc them if needed)
+
+        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);
+        }
+}