LCOV - code coverage report
Current view: top level - libavcodec - ffv1_template.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 14 21 66.7 %
Date: 2017-12-12 11:08:38 Functions: 4 4 100.0 %

          Line data    Source code
       1             : /*
       2             :  * FFV1 codec
       3             :  *
       4             :  * Copyright (c) 2003-2013 Michael Niedermayer <michaelni@gmx.at>
       5             :  *
       6             :  * This file is part of FFmpeg.
       7             :  *
       8             :  * FFmpeg is free software; you can redistribute it and/or
       9             :  * modify it under the terms of the GNU Lesser General Public
      10             :  * License as published by the Free Software Foundation; either
      11             :  * version 2.1 of the License, or (at your option) any later version.
      12             :  *
      13             :  * FFmpeg is distributed in the hope that it will be useful,
      14             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      16             :  * Lesser General Public License for more details.
      17             :  *
      18             :  * You should have received a copy of the GNU Lesser General Public
      19             :  * License along with FFmpeg; if not, write to the Free Software
      20             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      21             :  */
      22             : 
      23   478095174 : static inline int RENAME(predict)(TYPE *src, TYPE *last)
      24             : {
      25   478095174 :     const int LT = last[-1];
      26   478095174 :     const int T  = last[0];
      27   478095174 :     const int L  = src[-1];
      28             : 
      29   478095174 :     return mid_pred(L, L + T - LT, T);
      30             : }
      31             : 
      32   478095174 : static inline int RENAME(get_context)(PlaneContext *p, TYPE *src,
      33             :                                       TYPE *last, TYPE *last2)
      34             : {
      35   478095174 :     const int LT = last[-1];
      36   478095174 :     const int T  = last[0];
      37   478095174 :     const int RT = last[1];
      38   478095174 :     const int L  = src[-1];
      39             : 
      40   478095174 :     if (p->quant_table[3][127]) {
      41           0 :         const int TT = last2[0];
      42           0 :         const int LL = src[-2];
      43           0 :         return p->quant_table[0][(L - LT) & 0xFF] +
      44           0 :                p->quant_table[1][(LT - T) & 0xFF] +
      45           0 :                p->quant_table[2][(T - RT) & 0xFF] +
      46           0 :                p->quant_table[3][(LL - L) & 0xFF] +
      47           0 :                p->quant_table[4][(TT - T) & 0xFF];
      48             :     } else
      49   956190348 :         return p->quant_table[0][(L - LT) & 0xFF] +
      50   956190348 :                p->quant_table[1][(LT - T) & 0xFF] +
      51   478095174 :                p->quant_table[2][(T - RT) & 0xFF];
      52             : }
      53             : 

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