mirror of https://code.videolan.org/videolan/vlc
185 lines
6.8 KiB
C
185 lines
6.8 KiB
C
/*****************************************************************************
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* vlc_config.h: limits and configuration
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* Defines all compilation-time configuration constants and size limits
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*****************************************************************************
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* Copyright (C) 1999-2003 the VideoLAN team
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*
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* Authors: Vincent Seguin <seguin@via.ecp.fr>
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* Samuel Hocevar <sam@via.ecp.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/**
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* \file
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* This file defines of values used in interface, vout, aout and vlc core functions.
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*/
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/* Conventions regarding names of symbols and variables
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* ----------------------------------------------------
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*
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* - Symbols should begin with a prefix indicating in which module they are
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* used, such as INTF_, VOUT_ or AOUT_.
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*/
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/*****************************************************************************
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* General configuration
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*****************************************************************************/
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/* All timestamp below or equal to this define are invalid/unset
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* XXX the numerical value is 0 because of historical reason and will change.*/
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#define VLC_TS_INVALID (0)
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#define VLC_TS_0 (1)
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#define CLOCK_FREQ INT64_C(1000000)
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/*****************************************************************************
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* Interface configuration
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*****************************************************************************/
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/* Base delay in micro second for interface sleeps */
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#define INTF_IDLE_SLEEP (CLOCK_FREQ/20)
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/* Step for changing gamma, and minimum and maximum values */
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#define INTF_GAMMA_STEP .1
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#define INTF_GAMMA_LIMIT 3
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/*****************************************************************************
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* Input thread configuration
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*****************************************************************************/
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#define DEFAULT_INPUT_ACTIVITY 1
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#define TRANSCODE_ACTIVITY 10
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/* Used in ErrorThread */
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#define INPUT_IDLE_SLEEP (CLOCK_FREQ/10)
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/* Number of read() calls needed until we check the file size through
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* fstat() */
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#define INPUT_FSTAT_NB_READS 16
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/*
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* General limitations
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*/
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/* Duration between the time we receive the data packet, and the time we will
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* mark it to be presented */
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#define DEFAULT_PTS_DELAY (3*CLOCK_FREQ/10)
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/* DVD and VCD devices */
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#if !defined( WIN32 ) && !defined( UNDER_CE )
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# define CD_DEVICE "/dev/cdrom"
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# define DVD_DEVICE "/dev/dvd"
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#else
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# define CD_DEVICE "D:"
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# define DVD_DEVICE NULL
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#endif
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#define VCD_DEVICE CD_DEVICE
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#define CDAUDIO_DEVICE CD_DEVICE
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/*****************************************************************************
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* Audio configuration
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*****************************************************************************/
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/* Volume */
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/* If you are coding an interface, please see src/audio_output/intf.c */
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#define AOUT_VOLUME_DEFAULT 256
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#define AOUT_VOLUME_STEP 32
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#define AOUT_VOLUME_MAX 1024
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#define AOUT_VOLUME_MIN 0
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/* Max number of pre-filters per input, and max number of post-filters */
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#define AOUT_MAX_FILTERS 10
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/* Max number of inputs */
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#define AOUT_MAX_INPUTS 5
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/* Buffers which arrive in advance of more than AOUT_MAX_ADVANCE_TIME
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* will be considered as bogus and be trashed */
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#define AOUT_MAX_ADVANCE_TIME (DEFAULT_PTS_DELAY * 5)
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/* Buffers which arrive in advance of more than AOUT_MAX_PREPARE_TIME
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* will cause the calling thread to sleep */
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#define AOUT_MAX_PREPARE_TIME (CLOCK_FREQ/2)
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/* Buffers which arrive after pts - AOUT_MIN_PREPARE_TIME will be trashed
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* to avoid too heavy resampling */
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#define AOUT_MIN_PREPARE_TIME (CLOCK_FREQ/25)
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/* Max acceptable delay between the coded PTS and the actual presentation
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* time, without resampling */
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#define AOUT_PTS_TOLERANCE (CLOCK_FREQ/25)
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/* Max acceptable resampling (in %) */
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#define AOUT_MAX_RESAMPLING 10
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/*****************************************************************************
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* SPU configuration
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*****************************************************************************/
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/* Buffer must avoid arriving more than SPU_MAX_PREPARE_TIME in advanced to
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* the SPU */
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#define SPU_MAX_PREPARE_TIME (CLOCK_FREQ/2)
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/*****************************************************************************
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* Video configuration
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*****************************************************************************/
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/*
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* Default settings for video output threads
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*/
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/* Multiplier value for aspect ratio calculation (2^7 * 3^3 * 5^3) */
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#define VOUT_ASPECT_FACTOR 432000
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/* Maximum width of a scaled source picture - this should be relatively high,
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* since higher stream values will result in no display at all. */
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#define VOUT_MAX_WIDTH 4096
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/* Number of planes in a picture */
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#define VOUT_MAX_PLANES 5
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/* Video heap size - remember that a decompressed picture is big
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* (~1 Mbyte) before using huge values */
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#define VOUT_MAX_PICTURES 20
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/*
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* Time settings
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*/
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/* Time to sleep when waiting for a buffer (from vout or the video fifo).
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* It should be approximately the time needed to perform a complete picture
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* loop. Since it only happens when the video heap is full, it does not need
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* to be too low, even if it blocks the decoder. */
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#define VOUT_OUTMEM_SLEEP (CLOCK_FREQ/50)
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/* The default video output window title */
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#define VOUT_TITLE "VLC"
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/*****************************************************************************
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* Messages and console interfaces configuration
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*****************************************************************************/
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/* Maximal size of a message to be stored in the mesage queue,
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* it is needed when vasprintf is not available */
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#define INTF_MAX_MSG_SIZE 512
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/* Maximal size of the message queue - in case of overflow, all messages in the
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* queue are printed, but not sent to the threads */
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#define VLC_MSG_QSIZE 256
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/* Maximal depth of the object tree output by vlc_dumpstructure */
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#define MAX_DUMPSTRUCTURE_DEPTH 100
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