LCOV - code coverage report
Current view: top level - libavcodec - dcamath.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 17 19 89.5 %
Date: 2017-12-16 01:21:47 Functions: 14 15 93.3 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (C) 2016 foo86
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      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 GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #ifndef AVCODEC_DCAMATH_H
      22             : #define AVCODEC_DCAMATH_H
      23             : 
      24             : #include "libavutil/common.h"
      25             : #include "libavutil/intmath.h"
      26             : 
      27   139736218 : static inline int32_t norm__(int64_t a, int bits)
      28             : {
      29   139736218 :     if (bits > 0)
      30   139736218 :         return (int32_t)((a + (INT64_C(1) << (bits - 1))) >> bits);
      31             :     else
      32           0 :         return (int32_t)a;
      33             : }
      34             : 
      35   116183279 : static inline int32_t mul__(int32_t a, int32_t b, int bits)
      36             : {
      37   116183279 :     return norm__((int64_t)a * b, bits);
      38             : }
      39             : 
      40      392496 : static inline int32_t norm13(int64_t a) { return norm__(a, 13); }
      41     4662555 : static inline int32_t norm16(int64_t a) { return norm__(a, 16); }
      42      860160 : static inline int32_t norm20(int64_t a) { return norm__(a, 20); }
      43     7506944 : static inline int32_t norm21(int64_t a) { return norm__(a, 21); }
      44     4956672 : static inline int32_t norm23(int64_t a) { return norm__(a, 23); }
      45             : 
      46      224706 : static inline int32_t mul15(int32_t a, int32_t b) { return mul__(a, b, 15); }
      47      257134 : static inline int32_t mul16(int32_t a, int32_t b) { return mul__(a, b, 16); }
      48       40656 : static inline int32_t mul17(int32_t a, int32_t b) { return mul__(a, b, 17); }
      49      917504 : static inline int32_t mul22(int32_t a, int32_t b) { return mul__(a, b, 22); }
      50    13096985 : static inline int32_t mul23(int32_t a, int32_t b) { return mul__(a, b, 23); }
      51           0 : static inline int32_t mul31(int32_t a, int32_t b) { return mul__(a, b, 31); }
      52   101646294 : static inline int32_t mul32(int32_t a, int32_t b) { return mul__(a, b, 32); }
      53             : 
      54    48392589 : static inline int32_t clip23(int32_t a) { return av_clip_intp2(a, 23); }
      55             : 
      56             : #endif

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