1 /*****************************************************************************
2 * config.h: limits and configuration
3 * Defines all compilation-time configuration constants and size limits
4 *****************************************************************************
5 * Copyright (C) 1999, 2000, 2001 VideoLAN
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., 59 Temple Place - Suite 330, Boston, MA 02111, 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 ADEC_.
31 * - Regarding environment variables, which are used as initialization
32 * parameters for threads :
33 * + variable names should end with '_VAR'
34 * + environment variable default value should end with '_DEFAULT'
35 * + values having a special meaning with '_VAL'
39 /*****************************************************************************
41 *****************************************************************************/
43 /* Program version and copyright message */
44 #define VERSION_MESSAGE "vlc @VLC_VERSION@ @VLC_CODENAME@ " \
45 /* "(" PROGRAM_BUILD ") (" PROGRAM_OPTIONS ")\n" */ \
46 "Copyright 1996-2001 VideoLAN\n"
47 #define COPYRIGHT_MESSAGE "VideoLAN Client - version @VLC_VERSION@" \
48 " @VLC_CODENAME@ - (C)1996-2001 VideoLAN\n"
50 #define VERSION "@VLC_VERSION@"
52 /*****************************************************************************
53 * General compilation options
54 *****************************************************************************/
56 /* Define for DVB support - Note that some extensions or restrictions may be
57 * incompatible with native MPEG2 streams */
58 //#define DVB_EXTENSIONS
59 //#define DVB_RESTRICTIONS
61 /* Define to disable some obscure heuristics behind the video_parser and the
62 * video_decoder that improve performance but are not fully MPEG2 compliant
63 * and might cause problems with some very weird streams. */
64 //#define MPEG2_COMPLIANT
66 /*****************************************************************************
67 * Debugging options - define or undefine symbols
68 *****************************************************************************/
70 /* General trace support, which depends of the TRACE define, is determined
73 /* Modules specific debugging - this will produce a lot of output, but can be
74 * useful to track a bug */
81 /* Trace log file - if defined, a file can be used to store all messages. If
82 * TRACE_LOG_ONLY is defined, debug messages will only be printed to the log and
83 * will not appear on the screen */
84 #define TRACE_LOG "vlc-trace.log"
85 #define TRACE_LOG_ONLY
89 /*****************************************************************************
90 * General configuration
91 *****************************************************************************/
93 #define CLOCK_FREQ 1000000
96 /* Automagically spawn input, audio and video threads ? */
100 /* When creating or destroying threads in blocking mode, delay to poll thread
102 #define THREAD_SLEEP ((int)(0.010*CLOCK_FREQ))
105 * Decoders FIFO configuration
108 /* Size of the FIFO. FIFO_SIZE+1 must be a power of 2 */
109 #define FIFO_SIZE 1023
115 #define DATA_PATH "@prefix@/share/videolan"
116 #define PLUGIN_PATH "@prefix@/lib/videolan/vlc"
118 #define MAX_PLUGIN_COUNT 32
120 /*****************************************************************************
121 * Interface configuration
122 *****************************************************************************/
124 /* Environment variable containing the display method */
125 #define INTF_METHOD_VAR "vlc_intf"
126 #define INTF_METHOD_DEFAULT "gtk"
128 /* Environment variable used to store startup script name and default value */
129 #define INTF_INIT_SCRIPT_VAR "vlcrc"
130 #define INTF_INIT_SCRIPT_DEFAULT ".vlcrc"
132 /* Environment variable used to store channels file and default value */
133 #define INTF_CHANNELS_VAR "vlc_channels"
134 #define INTF_CHANNELS_DEFAULT "vlc.channels"
136 /* Base delay in micro second for interface sleeps */
137 #define INTF_IDLE_SLEEP ((int)(0.050*CLOCK_FREQ))
139 /* Step for changing gamma, and minimum and maximum values */
140 #define INTF_GAMMA_STEP .1
141 #define INTF_GAMMA_LIMIT 3
143 /* Maximum number of channels */
144 #define INTF_MAX_CHANNELS 10
146 /* Default search path for interface file browser */
147 #define INTF_PATH_VAR "vlc_search_path"
148 #define INTF_PATH_DEFAULT ""
150 /* Environment variable containing the standard output method */
151 #define INTF_STDOUT_VAR "vlc_stdout"
152 #define INTF_STDOUT_DEFAULT ""
154 /*****************************************************************************
155 * Input thread configuration
156 *****************************************************************************/
158 /* Environment variable containing the input method */
159 #define INPUT_METHOD_VAR "vlc_input"
160 #define INPUT_METHOD_DEFAULT "ps"
163 #define INPUT_IDLE_SLEEP ((int)(0.100*CLOCK_FREQ))
166 * General limitations
169 /* Maximum number of input threads - this value is used exclusively by
170 * interface, and is in fact an interface limitation */
171 #define INPUT_MAX_THREADS 10
173 /* Maximum size of a data packet (128 kB) */
174 #define INPUT_MAX_PACKET_SIZE 131072
176 /* Maximum length of a pre-parsed chunk (4 MB) */
177 #define INPUT_PREPARSE_LENGTH 4194304
179 /* Maximum length of a hostname or source name */
180 #define INPUT_MAX_SOURCE_LENGTH 100
182 /* Default network protocol */
183 #define INPUT_NETWORK_PROTOCOL_VAR "vlc_network_protocol"
184 #define INPUT_NETWORK_PROTOCOL_DEFAULT "ts"
186 /* Default remote server */
187 #define INPUT_SERVER_VAR "vlc_server"
188 #define INPUT_SERVER_DEFAULT "138.195.143.224"
190 /* Default input port */
191 #define INPUT_PORT_VAR "vlc_server_port"
192 #define INPUT_PORT_DEFAULT 1234
194 /* Default broadcast address */
195 #define INPUT_BCAST_ADDR_VAR "vlc_broadcast_addr"
196 #define INPUT_BCAST_ADDR_DEFAULT "138.195.143.255"
199 #define INPUT_BROADCAST_VAR "vlc_broadcast"
200 #define INPUT_BROADCAST_DEFAULT 0
203 #define INPUT_NETWORK_CHANNEL_VAR "vlc_channel"
204 #define INPUT_NETWORK_CHANNEL_DEFAULT 0
210 /* Default network interface and environment variable */
211 #define INPUT_IFACE_VAR "vlc_iface"
212 #define INPUT_IFACE_DEFAULT "eth0"
214 /* Default server and port */
215 #define INPUT_CHANNEL_SERVER_VAR "vlc_channel_server"
216 #define INPUT_CHANNEL_SERVER_DEFAULT "138.195.143.220"
217 #define INPUT_CHANNEL_PORT_VAR "vlc_channel_port"
218 #define INPUT_CHANNEL_PORT_DEFAULT 6010
220 /* Delay between channel changes - this is required to avoid flooding the
222 #define INPUT_CHANNEL_CHANGE_DELAY (mtime_t)(5*CLOCK_FREQ)
224 /* Duration between the time we receive the data packet, and the time we will
225 * mark it to be presented */
226 #define DEFAULT_PTS_DELAY (mtime_t)(.2*CLOCK_FREQ)
229 #define INPUT_DVD_DEVICE_VAR "vlc_dvd_device"
230 #define INPUT_DVD_DEVICE_DEFAULT "/dev/dvd"
232 #define INPUT_TITLE_VAR "vlc_input_title"
233 #define INPUT_CHAPTER_VAR "vlc_input_chapter"
234 #define INPUT_ANGLE_VAR "vlc_input_angle"
235 #define INPUT_AUDIO_VAR "vlc_input_audio"
236 #define INPUT_CHANNEL_VAR "vlc_input_channel"
237 #define INPUT_SUBTITLE_VAR "vlc_input_subtitle"
240 #define INPUT_VCD_DEVICE_VAR "vlc_vcd_device"
241 #define INPUT_VCD_DEVICE_DEFAULT "/dev/cdrom"
243 /*****************************************************************************
244 * Audio configuration
245 *****************************************************************************/
247 /* Maximum number of audio output threads */
248 #define AOUT_MAX_THREADS 10
250 /* Environment variable containing the audio output method */
251 #define AOUT_METHOD_VAR "vlc_aout"
252 #define AOUT_METHOD_DEFAULT "dsp"
254 /* Environment variable used to store dsp device name, and default value */
255 #define AOUT_DSP_VAR "vlc_dsp"
256 #define AOUT_DSP_DEFAULT "/dev/dsp"
258 /* Default audio output format (AOUT_FMT_S16_NE = Native Endianess) */
259 #define AOUT_FORMAT_DEFAULT AOUT_FMT_S16_NE
260 /* #define AOUT_FORMAT_DEFAULT AOUT_FMT_S8 */
261 /* #define AOUT_FORMAT_DEFAULT AOUT_FMT_U8 */
262 /* #define AOUT_FORMAT_DEFAULT AOUT_FMT_S16_BE */
263 /* #define AOUT_FORMAT_DEFAULT AOUT_FMT_S16_LE */
264 /* #define AOUT_FORMAT_DEFAULT AOUT_FMT_U16_BE */
265 /* #define AOUT_FORMAT_DEFAULT AOUT_FMT_U16_LE */
267 /* Environment variable for stereo, and default value */
268 #define AOUT_STEREO_VAR "vlc_stereo"
269 #define AOUT_STEREO_DEFAULT 1
271 /* Environment variable for spdif mode */
272 #define AOUT_SPDIF_VAR "vlc_spdif"
273 #define AOUT_SPDIF_DEFAULT 0
275 /* Environment variable containing the AC3 downmix method */
276 #define DOWNMIX_METHOD_VAR "vlc_downmix"
278 /* Environment variable containing the AC3 IMDCT method */
279 #define IMDCT_METHOD_VAR "vlc_imdct"
282 #define VOLUME_DEFAULT 512
283 #define VOLUME_STEP 128
284 #define VOLUME_MAX 1024
286 /* Environment variable for output rate, and default value */
287 #define AOUT_RATE_VAR "vlc_audio_rate"
288 #define AOUT_RATE_DEFAULT 44100
290 /* Number of audio output frames contained in an audio output fifo.
291 * (AOUT_FIFO_SIZE + 1) must be a power of 2, in order to optimise the
292 * %(AOUT_FIFO_SIZE + 1) operation with an &AOUT_FIFO_SIZE.
293 * With 511 we have at least 511*384/2/48000=2 seconds of sound */
294 #define AOUT_FIFO_SIZE 511
296 /* Maximum number of audio fifos. The value of AOUT_MAX_FIFOS should be a power
297 * of two, in order to optimize the '/AOUT_MAX_FIFOS' and '*AOUT_MAX_FIFOS'
298 * operations with '>>' and '<<' (gcc changes this at compilation-time) */
299 #define AOUT_MAX_FIFOS 2
301 /* Duration (in microseconds) of an audio output buffer should be :
302 * - short, in order to be able to play a new song very quickly (especially a
303 * song from the interface)
304 * - long, in order to perform the buffer calculations as few as possible */
305 #define AOUT_BUFFER_DURATION 100000
307 /*****************************************************************************
308 * Video configuration
309 *****************************************************************************/
311 /* Maximum number of video output threads */
312 #define VOUT_MAX_THREADS 10
315 * Default settings for video output threads
318 /* Environment variable containing the display method */
319 #define VOUT_METHOD_VAR "vlc_vout"
320 #define VOUT_METHOD_DEFAULT "x11"
322 /* Environment variable containing the motion compensation method */
323 #define MOTION_METHOD_VAR "vlc_motion"
325 /* Environment variable containing the IDCT method */
326 #define IDCT_METHOD_VAR "vlc_idct"
328 /* Environment variable containing the YUV method */
329 #define YUV_METHOD_VAR "vlc_yuv"
331 /* Environment variable used in place of DISPLAY if available */
332 #define VOUT_DISPLAY_VAR "vlc_display"
334 /* Default dimensions for display window - these dimensions are enough for the
335 * standard width and height broadcasted MPEG-2 streams or DVDs */
336 #define VOUT_WIDTH_VAR "vlc_width"
337 #define VOUT_HEIGHT_VAR "vlc_height"
338 #define VOUT_WIDTH_DEFAULT 720
339 #define VOUT_HEIGHT_DEFAULT 576
341 #define VOUT_DEPTH_VAR "vlc_depth"
342 #define VOUT_DEPTH_DEFAULT 15
344 #define VOUT_FULLSCREEN_VAR "vlc_fullscreen"
345 #define VOUT_FULLSCREEN_DEFAULT 0
347 #define VOUT_FULLSCREEN_DEPTH_VAR "vlc_fullscreen_depth"
348 #define VOUT_FULLSCREEN_DEPTH_DEFAULT 32
350 /* Maximum width of a scaled source picture - this should be relatively high,
351 * since higher stream values will result in no display at all. */
352 #define VOUT_MAX_WIDTH 4096
354 /* Video heap size - remember that a decompressed picture is big
355 * (~1 Mbyte) before using huge values */
356 #define VOUT_MAX_PICTURES 5
358 /* Number of simultaneous subpictures */
359 #define VOUT_MAX_SUBPICTURES 5
361 /* Maximum number of active areas in a rendering buffer. Active areas are areas
362 * of the picture which need to be cleared before re-using the buffer. If a
363 * picture, including its many additions such as subtitles, additionnal user
364 * informations and interface, has too many active areas, some of them are
366 #define VOUT_MAX_AREAS 5
368 /* Environment variable for grayscale output mode, and default value */
369 #define VOUT_GRAYSCALE_VAR "vlc_grayscale"
370 #define VOUT_GRAYSCALE_DEFAULT 0
372 /* Environment variable for fullscreen mode, and default value */
373 #define VOUT_FULLSCREEN_VAR "vlc_fullscreen"
374 #define VOUT_FULLSCREEN_DEFAULT 0
376 /* Environment variable for overlay mode, and default value */
377 #define VOUT_OVERLAY_VAR "vlc_overlay"
378 #define VOUT_OVERLAY_DEFAULT 0
381 #define VOUT_GAMMA_VAR "vlc_gamma"
382 #define VOUT_GAMMA_DEFAULT 0.
385 #define VOUT_DEFAULT_FONT "default8x9.psf"
386 #define VOUT_LARGE_FONT "default8x16.psf"
388 /* Statistics are displayed every n loops (=~ pictures) */
389 #define VOUT_STATS_NB_LOOPS 100
395 /* Time during which the thread will sleep if it has nothing to
396 * display (in micro-seconds) */
397 #define VOUT_IDLE_SLEEP ((int)(0.020*CLOCK_FREQ))
399 /* Maximum lap of time allowed between the beginning of rendering and
400 * display. If, compared to the current date, the next image is too
401 * late, the thread will perform an idle loop. This time should be
402 * at least VOUT_IDLE_SLEEP plus the time required to render a few
403 * images, to avoid trashing of decoded images */
404 #define VOUT_DISPLAY_DELAY ((int)(0.500*CLOCK_FREQ))
406 /* Delay (in microseconds) before an idle screen is displayed */
407 #define VOUT_IDLE_DELAY (5*CLOCK_FREQ)
409 /* Number of pictures required to computes the FPS rate */
410 #define VOUT_FPS_SAMPLES 20
412 /* Better be in advance when awakening than late... */
413 #define VOUT_MWAIT_TOLERANCE ((int)(0.020*CLOCK_FREQ))
415 /* The default video output window title */
416 #define VOUT_TITLE "VideoLAN Client @VLC_VERSION@"
418 /* Environment variable for framebuffer device, and default value */
419 #define VOUT_FB_DEV_VAR "vlc_fb_dev"
420 #define VOUT_FB_DEV_DEFAULT "/dev/fb0"
422 /* Environment variable for XVideo adaptor, and default value */
423 #define VOUT_XVADAPTOR_VAR "vlc_xv_adaptor"
425 /*****************************************************************************
426 * Video parser configuration
427 *****************************************************************************/
429 #define VPAR_IDLE_SLEEP ((int)(0.010*CLOCK_FREQ))
431 /* Time to sleep when waiting for a buffer (from vout or the video fifo).
432 * It should be approximately the time needed to perform a complete picture
433 * loop. Since it only happens when the video heap is full, it does not need
434 * to be too low, even if it blocks the decoder. */
435 #define VPAR_OUTMEM_SLEEP ((int)(0.020*CLOCK_FREQ))
437 /* Optimization level, from 0 to 2 - 1 is generally a good compromise. Remember
438 * that raising this level dramatically lengthens the compilation time. */
439 #define VPAR_OPTIM_LEVEL 2
441 /* Maximum number of macroblocks in a picture. */
444 /* The synchro variable name */
445 #define VPAR_SYNCHRO_VAR "vlc_synchro"
447 /*****************************************************************************
448 * Video decoder configuration
449 *****************************************************************************/
451 #define VDEC_IDLE_SLEEP ((int)(0.100*CLOCK_FREQ))
453 /* Maximum range of values out of the IDCT + motion compensation. */
454 #define VDEC_CROPRANGE 2048
456 /* Environment variable containing the SMP value. */
457 #define VDEC_SMP_VAR "vlc_smp"
459 /* No SMP by default, since it slows down things on non-smp machines. */
460 #define VDEC_SMP_DEFAULT 0
462 /* Nice increments for decoders -- necessary for x11 scheduling */
465 /*****************************************************************************
466 * Messages and console interfaces configuration
467 *****************************************************************************/
469 /* Maximal size of a message to be stored in the mesage queue,
470 * it is needed when vasprintf is not avalaible */
471 #define INTF_MAX_MSG_SIZE 512
473 /* Maximal size of the message queue - in case of overflow, all messages in the
474 * queue are printed by the calling thread */
475 #define INTF_MSG_QSIZE 64
477 /* Interface warnig message level */
478 #define INTF_WARNING_VAR "vlc_warning_level"
479 #define INTF_WARNING_DEFAULT 0
481 /* Define to enable messages queues - disabling messages queue can be useful
482 * when debugging, since it allows messages which would not be printed
483 * due to a crash to be printed anyway */
485 #define INTF_MSG_QUEUE
488 /* Format of the header for debug messages. The arguments following this header
489 * are the file (char *), the function (char *) and the line (int) in which the
490 * message function was called */
491 #define INTF_MSG_DBG_FORMAT "## %s:%s(),%i: "
493 /* Max number of arguments on a command line, including the function name */
494 #define INTF_MAX_ARGS 20
496 /* Maximal size of a command line in a script */
497 #define INTF_MAX_CMD_SIZE 240
499 /* Number of memorized lines in console window text zone */
500 #define INTF_CONSOLE_MAX_TEXT 100
502 /* Maximal number of commands which can be saved in history list */
503 #define INTF_CONSOLE_MAX_HISTORY 20
505 /****************************************************************************
507 ****************************************************************************/
509 /* Launch on start-up */
510 #define PLAYLIST_STARTUP_VAR "vlc_playlist_on_start_up"
511 #define PLAYLIST_STARTUP_DEFAULT 0
513 /* Enqueue drag'n dropped item */
514 #define PLAYLIST_ENQUEUE_VAR "vlc_playlist_enqueue"
515 #define PLAYLIST_ENQUEUE_DEFAULT 0
517 /* Loop on playlist end */
518 #define PLAYLIST_LOOP_VAR "vlc_playlist_loop"
519 #define PLAYLIST_LOOP_DEFAULT 0