/*****************************************************************************
* vlc_config.h: limits and configuration
* Defines all compilation-time configuration constants and size limits
*****************************************************************************
* Copyright (C) 1999-2003 the VideoLAN team
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@via.ecp.fr>
*
* 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 02110-1301, USA.
*****************************************************************************/
/**
* \file
* This file defines of values used in interface, vout, aout and vlc core functions.
*/
/* Conventions regarding names of symbols and variables
* ----------------------------------------------------
*
* - Symbols should begin with a prefix indicating in which module they are
* used, such as INTF_, VOUT_ or AOUT_.
*/
/*****************************************************************************
* General configuration
*****************************************************************************/
#define CLOCK_FREQ 1000000
/* When creating or destroying threads in blocking mode, delay to poll thread
* status */
#define THREAD_SLEEP ((mtime_t)(0.010*CLOCK_FREQ))
/*****************************************************************************
* Interface configuration
*****************************************************************************/
/* Base delay in micro second for interface sleeps */
#define INTF_IDLE_SLEEP ((mtime_t)(0.050*CLOCK_FREQ))
/* Step for changing gamma, and minimum and maximum values */
#define INTF_GAMMA_STEP .1
#define INTF_GAMMA_LIMIT 3
/*****************************************************************************
* Input thread configuration
*****************************************************************************/
#define DEFAULT_INPUT_ACTIVITY 1
#define TRANSCODE_ACTIVITY 10
/* Used in ErrorThread */
#define INPUT_IDLE_SLEEP ((mtime_t)(0.100*CLOCK_FREQ))
/* Time to wait in case of read error */
#define INPUT_ERROR_SLEEP ((mtime_t)(0.10*CLOCK_FREQ))
/* Number of read() calls needed until we check the file size through
* fstat() */
#define INPUT_FSTAT_NB_READS 10
/*
* General limitations
*/
/* Duration between the time we receive the data packet, and the time we will
* mark it to be presented */
#define DEFAULT_PTS_DELAY (mtime_t)(.3*CLOCK_FREQ)
/* DVD and VCD devices */
#if !defined( WIN32 ) && !defined( UNDER_CE )
# define CD_DEVICE "/dev/cdrom"
# define DVD_DEVICE "/dev/dvd"
#else
# define CD_DEVICE "D:"
# define DVD_DEVICE NULL
#endif
#define VCD_DEVICE CD_DEVICE
#define CDAUDIO_DEVICE CD_DEVICE
/*****************************************************************************
* Audio configuration
*****************************************************************************/
/* Volume */
/* If you are coding an interface, please see src/audio_output/intf.c */
#define AOUT_VOLUME_DEFAULT 256
#define AOUT_VOLUME_STEP 32
#define AOUT_VOLUME_MAX 1024
#define AOUT_VOLUME_MIN 0
/* Max number of pre-filters per input, and max number of post-filters */
#define AOUT_MAX_FILTERS 10
/* Max number of inputs */
#define AOUT_MAX_INPUTS 5
/* Buffers which arrive in advance of more than AOUT_MAX_ADVANCE_TIME
* will be considered as bogus and be trashed */
#define AOUT_MAX_ADVANCE_TIME (mtime_t)(DEFAULT_PTS_DELAY * 5)
/* Buffers which arrive in advance of more than AOUT_MAX_PREPARE_TIME
* will cause the calling thread to sleep */
#define AOUT_MAX_PREPARE_TIME (mtime_t)(.5*CLOCK_FREQ)
/* Buffers which arrive after pts - AOUT_MIN_PREPARE_TIME will be trashed
* to avoid too heavy resampling */
#define AOUT_MIN_PREPARE_TIME (mtime_t)(.04*CLOCK_FREQ)
/* Max acceptable delay between the coded PTS and the actual presentation
* time, without resampling */
#define AOUT_PTS_TOLERANCE (mtime_t)(.04*CLOCK_FREQ)
/* Max acceptable resampling (in %) */
#define AOUT_MAX_RESAMPLING 10
/*****************************************************************************
* Video configuration
*****************************************************************************/
/*
* Default settings for video output threads
*/
/* Multiplier value for aspect ratio calculation (2^7 * 3^3 * 5^3) */
#define VOUT_ASPECT_FACTOR 432000
/* Maximum width of a scaled source picture - this should be relatively high,
* since higher stream values will result in no display at all. */
#define VOUT_MAX_WIDTH 4096
/* Number of planes in a picture */
#define VOUT_MAX_PLANES 5
/* Video heap size - remember that a decompressed picture is big
* (~1 Mbyte) before using huge values */
#define VOUT_MAX_PICTURES 8
/* Minimum number of direct pictures the video output will accept without
* creating additional pictures in system memory */
#define VOUT_MIN_DIRECT_PICTURES 6
/* Number of simultaneous subpictures */
#define VOUT_MAX_SUBPICTURES 8
/* Statistics are displayed every n loops (=~ pictures) */
#define VOUT_STATS_NB_LOOPS 100
/*
* Time settings
*/
/* Time during which the thread will sleep if it has nothing to
* display (in micro-seconds) */
#define VOUT_IDLE_SLEEP ((int)(0.020*CLOCK_FREQ))
/* Maximum lap of time allowed between the beginning of rendering and
* display. If, compared to the current date, the next image is too
* late, the thread will perform an idle loop. This time should be
* at least VOUT_IDLE_SLEEP plus the time required to render a few
* images, to avoid trashing of decoded images */
#define VOUT_DISPLAY_DELAY ((int)(0.200*CLOCK_FREQ))
/* Pictures which are VOUT_BOGUS_DELAY or more in advance probably have
* a bogus PTS and won't be displayed */
#define VOUT_BOGUS_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
/* Delay (in microseconds) before an idle screen is displayed */
#define VOUT_IDLE_DELAY (5*CLOCK_FREQ)
/* Number of pictures required to computes the FPS rate */
#define VOUT_FPS_SAMPLES 20
/* Better be in advance when awakening than late... */
#define VOUT_MWAIT_TOLERANCE ((mtime_t)(0.020*CLOCK_FREQ))
/* Time to sleep when waiting for a buffer (from vout or the video fifo).
* It should be approximately the time needed to perform a complete picture
* loop. Since it only happens when the video heap is full, it does not need
* to be too low, even if it blocks the decoder. */
#define VOUT_OUTMEM_SLEEP ((mtime_t)(0.020*CLOCK_FREQ))
/* The default video output window title */
#define VOUT_TITLE "VLC"
/*****************************************************************************
* Messages and console interfaces configuration
*****************************************************************************/
/* Maximal size of a message to be stored in the mesage queue,
* it is needed when vasprintf is not available */
#define INTF_MAX_MSG_SIZE 512
/* Maximal size of the message queue - in case of overflow, all messages in the
* queue are printed, but not sent to the threads */
#define VLC_MSG_QSIZE 256
/* Maximal depth of the object tree output by vlc_dumpstructure */
#define MAX_DUMPSTRUCTURE_DEPTH 100
