libavcodec/lagarith.h

   1 /*
   2  * Lagarith Decoder
   3  * Copyright (c) 2009 Nathan Caldwell
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 enum LagarithFrameType {
  23     FRAME_RAW           = 1,    /* Uncompressed */
  24     FRAME_U_RGB24       = 2,    /* Unaligned RGB24 */
  25     FRAME_ARITH_YUY2    = 3,    /* Arith coded YUY2 */
  26     FRAME_ARITH_RGB24   = 4,    /* Arith coded RGB24 */
  27     FRAME_SOLID_GRAY    = 5,    /* Solid grayscale color frame */
  28     FRAME_SOLID_COLOR   = 6,    /* Solid non-grayscale color frame */
  29     FRAME_OLD_ARITH_RGB = 7,    /* Obsolete arithmetic coded RGB keyframe (Maintained for backwards compatibility) */
  30     FRAME_ARITH_RGBA    = 8,    /* Arithmetic coded RGBA */
  31     FRAME_SOLID_RGBA    = 9,    /* Solid RGBA color frame */
  32     FRAME_ARITH_YV12    = 10,   /* Arithmetic coded YV12 */
  33     FRAME_REDUCED_RES   = 11,   /* Reduced resolution frame */
  34 };
  35
  36
  37 static const uint8_t run_table[]={0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,
  38         34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,
  39         86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,
  40         128,130,132,134,136,138,140,142,144,146,148,150,152,154,156,158,160,162,164,
  41         166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,
  42         204,206,208,210,212,214,216,218,220,222,224,226,228,230,232,234,236,238,240,
  43         242,244,246,248,250,252,254,255,253,251,249,247,245,243,241,239,237,235,233,
  44         231,229,227,225,223,221,219,217,215,213,211,209,207,205,203,201,199,197,195,
  45         193,191,189,187,185,183,181,179,177,175,173,171,169,167,165,163,161,159,157,
  46         155,153,151,149,147,145,143,141,139,137,135,133,131,129,127,125,123,121,119,
  47         117,115,113,111,109,107,105,103,101,99,97,95,93,91,89,87,85,83,81,79,77,75,73,
  48         71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27,25,23,21,
  49         19,17,15,13,11,9,7,5,3,1};
  50