include/vlc_config.h

   1 /*****************************************************************************
   2  * vlc_config.h: limits and configuration
   3  * Defines all compilation-time configuration constants and size limits
   4  *****************************************************************************
   5  * Copyright (C) 1999-2003 VLC authors and VideoLAN
   6  *
   7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   8  *          Samuel Hocevar <sam@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with this program; if not, write to the Free Software Foundation,
  22  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /**
  26  * \file
  27  * This file defines of values used in interface, vout, aout and vlc core functions.
  28  */
  29
  30 /* Conventions regarding names of symbols and variables
  31  * ----------------------------------------------------
  32  *
  33  * - Symbols should begin with a prefix indicating in which module they are
  34  *   used, such as INTF_, VOUT_ or AOUT_.
  35  */
  36
  37 /*****************************************************************************
  38  * General configuration
  39  *****************************************************************************/
  40
  41 /* All timestamp below or equal to this define are invalid/unset
  42  * XXX the numerical value is 0 because of historical reason and will change.*/
  43 #define VLC_TS_INVALID INT64_C(0)
  44 #define VLC_TS_0 INT64_C(1)
  45
  46 #define CLOCK_FREQ INT64_C(1000000)
  47
  48 /*****************************************************************************
  49  * Interface configuration
  50  *****************************************************************************/
  51
  52 /* Base delay in micro second for interface sleeps */
  53 #define INTF_IDLE_SLEEP                 (CLOCK_FREQ/20)
  54
  55 /*****************************************************************************
  56  * Input thread configuration
  57  *****************************************************************************/
  58
  59 /* Used in ErrorThread */
  60 #define INPUT_IDLE_SLEEP                (CLOCK_FREQ/10)
  61
  62 /*
  63  * General limitations
  64  */
  65
  66 /* Duration between the time we receive the data packet, and the time we will
  67  * mark it to be presented */
  68 #define DEFAULT_PTS_DELAY               (3*CLOCK_FREQ/10)
  69
  70 /*****************************************************************************
  71  * SPU configuration
  72  *****************************************************************************/
  73
  74 /* Buffer must avoid arriving more than SPU_MAX_PREPARE_TIME in advanced to
  75  * the SPU */
  76 #define SPU_MAX_PREPARE_TIME            (CLOCK_FREQ/2)
  77
  78 /*****************************************************************************
  79  * Video configuration
  80  *****************************************************************************/
  81
  82 /*
  83  * Default settings for video output threads
  84  */
  85
  86 /* Multiplier value for aspect ratio calculation (2^7 * 3^3 * 5^3) */
  87 #define VOUT_ASPECT_FACTOR              432000
  88
  89 /* Maximum width of a scaled source picture - this should be relatively high,
  90  * since higher stream values will result in no display at all. */
  91 #define VOUT_MAX_WIDTH                  4096
  92
  93 /* Number of planes in a picture */
  94 #define VOUT_MAX_PLANES                 5
  95
  96 /*
  97  * Time settings
  98  */
  99
 100 /* Time to sleep when waiting for a buffer (from vout or the video fifo).
 101  * It should be approximately the time needed to perform a complete picture
 102  * loop. Since it only happens when the video heap is full, it does not need
 103  * to be too low, even if it blocks the decoder. */
 104 #define VOUT_OUTMEM_SLEEP               (CLOCK_FREQ/50)
 105
 106 /* The default video output window title */
 107 #define VOUT_TITLE                      "VLC"
 108
 109 /*****************************************************************************
 110  * Messages and console interfaces configuration
 111  *****************************************************************************/
 112
 113 /* Maximal depth of the object tree output by vlc_dumpstructure */
 114 #define MAX_DUMPSTRUCTURE_DEPTH         100