libbpg-0.9.6

2015-10-27 11:46:00 +01:00 · 2015-10-27 11:46:00 +01:00 · 35a8402710
commit 35a8402710
parent 3035b41edf
248 changed files with 232891 additions and 100 deletions
--- a/x265/source/common/scalinglist.h
+++ b/x265/source/common/scalinglist.h
@ -0,0 +1,80 @@
+/*****************************************************************************
+ * Copyright (C) 2015 x265 project
+ *
+ * Authors: Steve Borho <steve@borho.org>
+ *
+ * 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  02111, USA.
+ *
+ * This program is also available under a commercial proprietary license.
+ * For more information, contact us at license @ x265.com.
+ *****************************************************************************/
+
+#ifndef X265_SCALINGLIST_H
+#define X265_SCALINGLIST_H
+
+#include "common.h"
+
+namespace X265_NS {
+// private namespace
+
+class ScalingList
+{
+public:
+
+    enum { NUM_SIZES = 4 };            // 4x4, 8x8, 16x16, 32x32
+    enum { NUM_LISTS = 6 };            // number of quantization matrix lists (YUV * inter/intra)
+    enum { NUM_REM = 6 };              // number of remainders of QP/6
+    enum { MAX_MATRIX_COEF_NUM = 64 }; // max coefficient number per quantization matrix
+    enum { MAX_MATRIX_SIZE_NUM = 8 };  // max size number for quantization matrix
+
+    static const int     s_numCoefPerSize[NUM_SIZES];
+    static const int32_t s_invQuantScales[NUM_REM];
+    static const int32_t s_quantScales[NUM_REM];
+
+    int32_t  m_scalingListDC[NUM_SIZES][NUM_LISTS];   // the DC value of the matrix coefficient for 16x16
+    int32_t* m_scalingListCoef[NUM_SIZES][NUM_LISTS]; // quantization matrix
+
+    int32_t* m_quantCoef[NUM_SIZES][NUM_LISTS][NUM_REM];   // array of quantization matrix coefficient 4x4
+    int32_t* m_dequantCoef[NUM_SIZES][NUM_LISTS][NUM_REM]; // array of dequantization matrix coefficient 4x4
+
+    bool     m_bEnabled;
+    bool     m_bDataPresent; // non-default scaling lists must be signaled
+
+    ScalingList();
+    ~ScalingList();
+
+    bool     init();
+    void     setDefaultScalingList();
+    bool     parseScalingList(const char* filename);
+    void     setupQuantMatrices();
+
+    /* used during SPS coding */
+    int      checkPredMode(int sizeId, int listId) const;
+
+protected:
+
+    static const int SCALING_LIST_DC = 16;    // default DC value
+
+    const int32_t* getScalingListDefaultAddress(int sizeId, int listId) const;
+    void     processDefaultMarix(int sizeId, int listId);
+    bool     checkDefaultScalingList() const;
+
+    void     processScalingListEnc(int32_t *coeff, int32_t *quantcoeff, int32_t quantScales, int height, int width, int ratio, int stride, int32_t dc);
+    void     processScalingListDec(int32_t *coeff, int32_t *dequantcoeff, int32_t invQuantScales, int height, int width, int ratio, int stride, int32_t dc);
+};
+
+}
+
+#endif // ifndef X265_SCALINGLIST_H