1 /*****************************************************************************
2 * vlc_config.h: limits and configuration
3 * Defines all compilation-time configuration constants and size limits
4 *****************************************************************************
5 * Copyright (C) 1999-2003 the VideoLAN team
7 * Authors: Vincent Seguin <seguin@via.ecp.fr>
8 * Samuel Hocevar <sam@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
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 General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /* Conventions regarding names of symbols and variables
26 * ----------------------------------------------------
28 * - Symbols should begin with a prefix indicating in which module they are
29 * used, such as INTF_, VOUT_ or AOUT_.
32 /*****************************************************************************
33 * General configuration
34 *****************************************************************************/
36 #define CLOCK_FREQ 1000000
39 /* When creating or destroying threads in blocking mode, delay to poll thread
41 #define THREAD_SLEEP ((mtime_t)(0.010*CLOCK_FREQ))
43 /* When a thread waits on a condition in debug mode, delay to wait before
44 * outputting an error message (in second) */
45 #define THREAD_COND_TIMEOUT 1
47 /* The configuration file and directory */
49 # define CONFIG_DIR "config/settings/VideoLAN Client"
51 # define CONFIG_DIR "Library/Preferences/VLC"
52 #elif defined( WIN32 ) || defined( UNDER_CE )
53 # define CONFIG_DIR "vlc"
55 # define CONFIG_DIR ".vlc"
57 #define CONFIG_FILE "vlcrc"
58 #define PLUGINSCACHE_DIR "cache"
60 /*****************************************************************************
61 * Interface configuration
62 *****************************************************************************/
64 /* Base delay in micro second for interface sleeps */
65 #define INTF_IDLE_SLEEP ((mtime_t)(0.050*CLOCK_FREQ))
67 /* Step for changing gamma, and minimum and maximum values */
68 #define INTF_GAMMA_STEP .1
69 #define INTF_GAMMA_LIMIT 3
71 /*****************************************************************************
72 * Input thread configuration
73 *****************************************************************************/
75 #define DEFAULT_INPUT_ACTIVITY 1
76 #define DIRECTORY_ACTIVITY 100
77 #define TRANSCODE_ACTIVITY 10
79 /* Used in ErrorThread */
80 #define INPUT_IDLE_SLEEP ((mtime_t)(0.100*CLOCK_FREQ))
82 /* Time to wait in case of read error */
83 #define INPUT_ERROR_SLEEP ((mtime_t)(0.10*CLOCK_FREQ))
85 /* Number of read() calls needed until we check the file size through
87 #define INPUT_FSTAT_NB_READS 10
93 /* Duration between the time we receive the data packet, and the time we will
94 * mark it to be presented */
95 #define DEFAULT_PTS_DELAY (mtime_t)(.3*CLOCK_FREQ)
97 /* DVD and VCD devices */
98 #if !defined( WIN32 ) && !defined( UNDER_CE )
99 # define VCD_DEVICE "/dev/cdrom"
100 # define CDAUDIO_DEVICE "/dev/cdrom"
102 # define VCD_DEVICE "D:"
103 # define CDAUDIO_DEVICE "D:"
106 /*****************************************************************************
107 * Audio configuration
108 *****************************************************************************/
111 #define AOUT_VOLUME_DEFAULT 256
112 #define AOUT_VOLUME_STEP 32
113 #define AOUT_VOLUME_MAX 1024
114 #define AOUT_VOLUME_MIN 0
116 /* Max number of pre-filters per input, and max number of post-filters */
117 #define AOUT_MAX_FILTERS 10
119 /* Max number of inputs */
120 #define AOUT_MAX_INPUTS 5
122 /* Buffers which arrive in advance of more than AOUT_MAX_ADVANCE_TIME
123 * will be considered as bogus and be trashed */
124 #define AOUT_MAX_ADVANCE_TIME (mtime_t)(DEFAULT_PTS_DELAY * 3)
126 /* Buffers which arrive in advance of more than AOUT_MAX_PREPARE_TIME
127 * will cause the calling thread to sleep */
128 #define AOUT_MAX_PREPARE_TIME (mtime_t)(.5*CLOCK_FREQ)
130 /* Buffers which arrive after pts - AOUT_MIN_PREPARE_TIME will be trashed
131 * to avoid too heavy resampling */
132 #define AOUT_MIN_PREPARE_TIME (mtime_t)(.04*CLOCK_FREQ)
134 /* Max acceptable delay between the coded PTS and the actual presentation
135 * time, without resampling */
136 #define AOUT_PTS_TOLERANCE (mtime_t)(.04*CLOCK_FREQ)
138 /* Max acceptable resampling (in %) */
139 #define AOUT_MAX_RESAMPLING 10
141 /*****************************************************************************
142 * Video configuration
143 *****************************************************************************/
146 * Default settings for video output threads
149 /* Multiplier value for aspect ratio calculation (2^7 * 3^3 * 5^3) */
150 #define VOUT_ASPECT_FACTOR 432000
152 /* Maximum width of a scaled source picture - this should be relatively high,
153 * since higher stream values will result in no display at all. */
154 #define VOUT_MAX_WIDTH 4096
156 /* Number of planes in a picture */
157 #define VOUT_MAX_PLANES 5
159 /* Video heap size - remember that a decompressed picture is big
160 * (~1 Mbyte) before using huge values */
161 #ifdef OPTIMIZE_MEMORY
162 # define VOUT_MAX_PICTURES 5
164 # define VOUT_MAX_PICTURES 8
167 /* Minimum number of direct pictures the video output will accept without
168 * creating additional pictures in system memory */
169 #define VOUT_MIN_DIRECT_PICTURES 6
171 /* Number of simultaneous subpictures */
172 #define VOUT_MAX_SUBPICTURES 8
174 /* Statistics are displayed every n loops (=~ pictures) */
175 #define VOUT_STATS_NB_LOOPS 100
181 /* Time during which the thread will sleep if it has nothing to
182 * display (in micro-seconds) */
183 #define VOUT_IDLE_SLEEP ((int)(0.020*CLOCK_FREQ))
185 /* Maximum lap of time allowed between the beginning of rendering and
186 * display. If, compared to the current date, the next image is too
187 * late, the thread will perform an idle loop. This time should be
188 * at least VOUT_IDLE_SLEEP plus the time required to render a few
189 * images, to avoid trashing of decoded images */
190 #define VOUT_DISPLAY_DELAY ((int)(0.200*CLOCK_FREQ))
192 /* Pictures which are VOUT_BOGUS_DELAY or more in advance probably have
193 * a bogus PTS and won't be displayed */
194 #define VOUT_BOGUS_DELAY ((mtime_t)(DEFAULT_PTS_DELAY * 30))
196 /* Delay (in microseconds) before an idle screen is displayed */
197 #define VOUT_IDLE_DELAY (5*CLOCK_FREQ)
199 /* Number of pictures required to computes the FPS rate */
200 #define VOUT_FPS_SAMPLES 20
202 /* Better be in advance when awakening than late... */
203 #define VOUT_MWAIT_TOLERANCE ((mtime_t)(0.020*CLOCK_FREQ))
205 /* Time to sleep when waiting for a buffer (from vout or the video fifo).
206 * It should be approximately the time needed to perform a complete picture
207 * loop. Since it only happens when the video heap is full, it does not need
208 * to be too low, even if it blocks the decoder. */
209 #define VOUT_OUTMEM_SLEEP ((mtime_t)(0.020*CLOCK_FREQ))
211 /* The default video output window title */
212 #define VOUT_TITLE "VLC"
214 /*****************************************************************************
215 * Messages and console interfaces configuration
216 *****************************************************************************/
218 /* Maximal size of a message to be stored in the mesage queue,
219 * it is needed when vasprintf is not available */
220 #define INTF_MAX_MSG_SIZE 512
222 /* Maximal size of the message queue - in case of overflow, all messages in the
223 * queue are printed, but not sent to the threads */
224 #define VLC_MSG_QSIZE 256
226 /* Maximal depth of the object tree output by vlc_dumpstructure */
227 #define MAX_DUMPSTRUCTURE_DEPTH 100