-/*******************************************************************************
+/*****************************************************************************
* interface.c: interface access for other threads
- * (c)1998 VideoLAN
- *******************************************************************************
* This library provides basic functions for threads to interact with user
* interface, such as command line.
- *******************************************************************************/
+ *****************************************************************************
+ * Copyright (C) 1998, 1999, 2000 VideoLAN
+ *
+ * Authors:
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *****************************************************************************/
-/*******************************************************************************
+/*****************************************************************************
* Preamble
- *******************************************************************************/
-#include <pthread.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <netinet/in.h>
-#include <sys/soundcard.h>
-#include <sys/uio.h>
-#include <X11/Xlib.h>
-#include <X11/extensions/XShm.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
+ *****************************************************************************/
+#include <errno.h> /* ENOMEM */
+#include <stdlib.h> /* free(), strtol() */
+#include <stdio.h> /* FILE */
+#include <string.h> /* strerror() */
+#include <sys/types.h> /* on BSD, uio.h needs types.h */
+#include <sys/uio.h> /* for input.h */
#include "config.h"
#include "common.h"
#include "mtime.h"
-#include "thread.h"
-
+#include "threads.h"
+#include "plugins.h"
#include "input.h"
-#include "input_vlan.h"
-#include "decoder_fifo.h"
-#include "audio_output.h"
-#include "audio_decoder.h"
+#include "intf_msg.h"
+#include "interface.h"
+#include "intf_cmd.h"
+#include "intf_console.h"
#include "video.h"
#include "video_output.h"
-#include "video_decoder.h"
-#include "xconsole.h"
-#include "interface.h"
-#include "intf_msg.h"
-#include "intf_cmd.h"
+#include "main.h"
-#include "pgm_data.h"
-/* ?? remove useless headers */
+/*****************************************************************************
+ * intf_channel_t: channel description
+ *****************************************************************************
+ * A 'channel' is a descriptor of an input method. It is used to switch easily
+ * from source to source without having to specify the whole input thread
+ * configuration. The channels array, stored in the interface thread object, is
+ * loaded in intf_Create, and unloaded in intf_Destroy.
+ *****************************************************************************/
+typedef struct intf_channel_s
+{
+ /* Channel description */
+ int i_channel; /* channel number, -1 for end of array */
+ char * psz_description; /* channel description (owned) */
+
+ /* Input configuration */
+ int i_input_method; /* input method descriptor */
+ char * psz_input_source; /* source string (owned) */
+ int i_input_port; /* port */
+ int i_input_vlan; /* vlan */
+} intf_channel_t;
-/*
+/*****************************************************************************
* Local prototypes
- */
-static int StartInterface ( intf_thread_t *p_intf );
-static void EndInterface ( intf_thread_t *p_intf );
+ *****************************************************************************/
+static int LoadChannels ( intf_thread_t *p_intf, char *psz_filename );
+static void UnloadChannels ( intf_thread_t *p_intf );
+static int ParseChannel ( intf_channel_t *p_channel, char *psz_str );
+
+/*****************************************************************************
+ * intf_Create: prepare interface before main loop
+ *****************************************************************************
+ * This function opens output devices and creates specific interfaces. It sends
+ * its own error messages.
+ *****************************************************************************/
+intf_thread_t* intf_Create( void )
+{
+ intf_thread_t *p_intf;
+ char * psz_method;
+
+ /* Allocate structure */
+ p_intf = malloc( sizeof( intf_thread_t ) );
+ if( !p_intf )
+ {
+ intf_ErrMsg("error: %s\n", strerror( ENOMEM ) );
+ return( NULL );
+ }
-/*******************************************************************************
+ /* Request an interface plugin */
+ psz_method = main_GetPszVariable( VOUT_METHOD_VAR, VOUT_DEFAULT_METHOD );
+ p_intf->p_intf_plugin = RequestPlugin( "intf", psz_method );
+
+ if( !p_intf->p_intf_plugin )
+ {
+ intf_ErrMsg( "error: could not open interface plugin intf_%s.so\n", psz_method );
+ free( p_intf );
+ return( NULL );
+ }
+
+ /* Get plugins */
+ p_intf->p_sys_create = GetPluginFunction( p_intf->p_intf_plugin, "intf_SysCreate" );
+ p_intf->p_sys_manage = GetPluginFunction( p_intf->p_intf_plugin, "intf_SysManage" );
+ p_intf->p_sys_destroy = GetPluginFunction( p_intf->p_intf_plugin, "intf_SysDestroy" );
+
+ /* Initialize structure */
+ p_intf->b_die = 0;
+ p_intf->p_vout = NULL;
+ p_intf->p_input = NULL;
+
+ /* Load channels - the pointer will be set to NULL on failure. The
+ * return value is ignored since the program can work without
+ * channels */
+ LoadChannels( p_intf, main_GetPszVariable( INTF_CHANNELS_VAR, INTF_CHANNELS_DEFAULT ));
+
+ /* Start interfaces */
+ p_intf->p_console = intf_ConsoleCreate();
+ if( p_intf->p_console == NULL )
+ {
+ intf_ErrMsg("error: can't create control console\n");
+ TrashPlugin( p_intf->p_intf_plugin );
+ free( p_intf );
+ return( NULL );
+ }
+ if( p_intf->p_sys_create( p_intf ) )
+ {
+ intf_ErrMsg("error: can't create interface\n");
+ intf_ConsoleDestroy( p_intf->p_console );
+ TrashPlugin( p_intf->p_intf_plugin );
+ free( p_intf );
+ return( NULL );
+ }
+
+ intf_Msg("Interface initialized\n");
+ return( p_intf );
+}
+
+/*****************************************************************************
* intf_Run
- *******************************************************************************
- * what it does:
- * - Create an X11 console
- * - wait for a command and try to execute it
- * - interpret the order returned after the command execution
- * - print the messages of the message queue (intf_FlushMsg)
- * return value: 0 if successful, < 0 otherwise
- *******************************************************************************/
-int intf_Run( intf_thread_t *p_intf )
+ *****************************************************************************
+ * Initialization script and main interface loop.
+ *****************************************************************************/
+void intf_Run( intf_thread_t *p_intf )
{
- /* When it is started, interface won't die immediatly */
- p_intf->b_die = 0;
- if( StartInterface( p_intf ) ) /* error */
+ /* Execute the initialization script - if a positive number is returned,
+ * the script could be executed but failed */
+ if( intf_ExecScript( main_GetPszVariable( INTF_INIT_SCRIPT_VAR, INTF_INIT_SCRIPT_DEFAULT ) ) > 0 )
{
- return( 1 );
+ intf_ErrMsg("warning: error(s) during startup script\n");
}
-
+
/* Main loop */
while(!p_intf->b_die)
{
/* Flush waiting messages */
intf_FlushMsg();
- /* Manage specific interfaces */
- intf_ManageXConsole( &p_intf->xconsole ); /* X11 console */
+ /* Manage specific interface */
+ p_intf->p_sys_manage( p_intf );
- /* Sleep to avoid using all CPU - since some interfaces needs to access
+ /* Check attached threads status */
+ if( (p_intf->p_vout != NULL) && p_intf->p_vout->b_error )
+ {
+ /* FIXME: add aout error detection ?? */
+ p_intf->b_die = 1;
+ }
+ if( (p_intf->p_input != NULL) && p_intf->p_input->b_error )
+ {
+ input_DestroyThread( p_intf->p_input, NULL );
+ p_intf->p_input = NULL;
+ intf_DbgMsg("Input thread destroyed\n");
+ }
+
+ /* Sleep to avoid using all CPU - since some interfaces needs to access
* keyboard events, a 100ms delay is a good compromise */
msleep( INTF_IDLE_SLEEP );
}
-
- /* End of interface thread - the main() function will close all remaining
- * output threads */
- EndInterface( p_intf );
- return ( 0 );
}
-/* following functions are local */
+/*****************************************************************************
+ * intf_Destroy: clean interface after main loop
+ *****************************************************************************
+ * This function destroys specific interfaces and close output devices.
+ *****************************************************************************/
+void intf_Destroy( intf_thread_t *p_intf )
+{
+ /* Destroy interfaces */
+ p_intf->p_sys_destroy( p_intf );
+ intf_ConsoleDestroy( p_intf->p_console );
+
+ /* Unload channels */
+ UnloadChannels( p_intf );
-/*******************************************************************************
- * StartInterface: prepare interface before main loop
- *******************************************************************************
- * This function opens output devices and create specific interfaces. It send
- * it's own error messages.
- *******************************************************************************/
-static int StartInterface( intf_thread_t *p_intf )
+ /* Close plugin */
+ TrashPlugin( p_intf->p_intf_plugin );
+
+ /* Free structure */
+ free( p_intf );
+}
+
+/*****************************************************************************
+ * intf_SelectChannel: change channel
+ *****************************************************************************
+ * Kill existing input, if any, and try to open a new one, using an input
+ * configuration table.
+ *****************************************************************************/
+int intf_SelectChannel( intf_thread_t * p_intf, int i_channel )
{
- int i_thread; /* thread index */
-#ifdef AUTO_SPAWN
- int fd;
-#endif
+ intf_channel_t * p_channel; /* channel */
- /* Empty all threads array */
- for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
+ /* Look for channel in array */
+ if( p_intf->p_channel != NULL )
{
- p_intf->pp_vout[i_thread] = NULL;
+ for( p_channel = p_intf->p_channel; p_channel->i_channel != -1; p_channel++ )
+ {
+ if( p_channel->i_channel == i_channel )
+ {
+ /*
+ * Change channel
+ */
+
+ /* Kill existing input, if any */
+ if( p_intf->p_input != NULL )
+ {
+ input_DestroyThread( p_intf->p_input, NULL );
+ }
+
+ intf_Msg("Channel %d: %s\n", i_channel, p_channel->psz_description );
+
+ /* Open a new input */
+ p_intf->p_input = input_CreateThread( p_channel->i_input_method, p_channel->psz_input_source,
+ p_channel->i_input_port, p_channel->i_input_vlan,
+ p_intf->p_vout, p_main->p_aout, NULL );
+ return( p_intf->p_input == NULL );
+ }
+ }
}
- for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
+
+ /* Channel does not exist */
+ intf_Msg("Channel %d does not exist\n", i_channel );
+ return( 1 );
+}
+
+/*****************************************************************************
+ * intf_ProcessKey: process standard keys
+ *****************************************************************************
+ * This function will process standard keys and return non 0 if the key was
+ * unknown.
+ *****************************************************************************/
+int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
+{
+ switch( i_key )
{
- p_intf->pp_input[i_thread] = NULL;
- }
+ case 'Q': /* quit order */
+ case 'q':
+ case 27: /* escape key */
+ case 3: /* ^C */
+ p_intf->b_die = 1;
+ break;
+ case '0': /* source change */
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ /* Change channel - return code is ignored since SelectChannel displays
+ * its own error messages */
+ intf_SelectChannel( p_intf, i_key - '0' );
+ break;
+ case '+': /* volume + */
+ /* XXX?? */
+ break;
+ case '-': /* volume - */
+ /* XXX?? */
+ break;
+ case 'M': /* toggle mute */
+ case 'm':
+ /* XXX?? */
+ break;
+ case 'g': /* gamma - */
+ if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_gamma > -INTF_GAMMA_LIMIT) )
+ {
+ vlc_mutex_lock( &p_intf->p_vout->change_lock );
+ p_intf->p_vout->f_gamma -= INTF_GAMMA_STEP;
+ p_intf->p_vout->i_changes |= VOUT_GAMMA_CHANGE;
+ vlc_mutex_unlock( &p_intf->p_vout->change_lock );
+ }
+ break;
+ case 'G': /* gamma + */
+ if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_gamma < INTF_GAMMA_LIMIT) )
+ {
+ vlc_mutex_lock( &p_intf->p_vout->change_lock );
+ p_intf->p_vout->f_gamma += INTF_GAMMA_STEP;
+ p_intf->p_vout->i_changes |= VOUT_GAMMA_CHANGE;
+ vlc_mutex_unlock( &p_intf->p_vout->change_lock );
+ }
+ break;
+ case 'c': /* toggle grayscale */
+ if( p_intf->p_vout != NULL )
+ {
+ vlc_mutex_lock( &p_intf->p_vout->change_lock );
+ p_intf->p_vout->b_grayscale = !p_intf->p_vout->b_grayscale;
+ p_intf->p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
+ vlc_mutex_unlock( &p_intf->p_vout->change_lock );
+ }
+ break;
+ case ' ': /* toggle interface */
+ if( p_intf->p_vout != NULL )
+ {
+ vlc_mutex_lock( &p_intf->p_vout->change_lock );
+ p_intf->p_vout->b_interface = !p_intf->p_vout->b_interface;
+ p_intf->p_vout->i_changes |= VOUT_INTF_CHANGE;
+ vlc_mutex_unlock( &p_intf->p_vout->change_lock );
+ }
+ break;
+ case 'i': /* toggle info */
+ if( p_intf->p_vout != NULL )
+ {
+ vlc_mutex_lock( &p_intf->p_vout->change_lock );
+ p_intf->p_vout->b_info = !p_intf->p_vout->b_info;
+ p_intf->p_vout->i_changes |= VOUT_INFO_CHANGE;
+ vlc_mutex_unlock( &p_intf->p_vout->change_lock );
+ }
+ break;
+ case 's': /* toggle scaling */
+ if( p_intf->p_vout != NULL )
+ {
+ vlc_mutex_lock( &p_intf->p_vout->change_lock );
+ p_intf->p_vout->b_scale = !p_intf->p_vout->b_scale;
+ p_intf->p_vout->i_changes |= VOUT_SCALE_CHANGE;
+ vlc_mutex_unlock( &p_intf->p_vout->change_lock );
+ }
+ break;
+ default: /* unknown key */
+ return( 1 );
+ }
+
+ return( 0 );
+}
- /* Start X11 Console*/
- if( intf_OpenXConsole( &p_intf->xconsole ) )
+/* following functions are local */
+
+/*****************************************************************************
+ * LoadChannels: load channels description from a file
+ *****************************************************************************
+ * This structe describes all interface-specific data of the main (interface)
+ * thread.
+ * Each line of the file is a semicolon separated list of the following
+ * fields :
+ * integer channel number
+ * string channel description
+ * integer input method (see input.h)
+ * string input source
+ * integer input port
+ * integer input vlan
+ * The last field must end with a semicolon.
+ * Comments and empty lines are not explicitely allowed, but lines with parsing
+ * errors are ignored without warning.
+ *****************************************************************************/
+static int LoadChannels( intf_thread_t *p_intf, char *psz_filename )
+{
+ FILE * p_file; /* file */
+ intf_channel_t * p_channel; /* current channel */
+ char psz_line[INTF_MAX_CMD_SIZE]; /* line buffer */
+ int i_index; /* channel or field index */
+
+ /* Set default value */
+ p_intf->p_channel = NULL;
+
+ /* Open file */
+ p_file = fopen( psz_filename, "r" );
+ if( p_file == NULL )
{
- intf_ErrMsg("intf error: can't open X11 console\n");
+ intf_ErrMsg("error: can't open %s (%s)\n", psz_filename, strerror(errno));
return( 1 );
}
-#ifdef AUTO_SPAWN
- /* Execute the initialization script (typically spawn an input thread) */
- if ( (fd = open( INIT_SCRIPT, O_RDONLY )) != -1 )
+ /* First pass: count number of lines */
+ for( i_index = 0; fgets( psz_line, INTF_MAX_CMD_SIZE, p_file ) != NULL; i_index++ )
+ {
+ ;
+ }
+
+ if( i_index != 0 )
{
- /* Startup script does exist */
- close( fd );
- intf_ExecScript( "vlc.init" );
+ /* Allocate array and rewind - some of the lines may be invalid, and the
+ * array will probably be larger than the actual number of channels, but
+ * it has no consequence. */
+ p_intf->p_channel = malloc( sizeof( intf_channel_t ) * i_index );
+ if( p_intf->p_channel == NULL )
+ {
+ intf_ErrMsg("error: %s\n", strerror(ENOMEM));
+ fclose( p_file );
+ return( 1 );
+ }
+ p_channel = p_intf->p_channel;
+ rewind( p_file );
+
+ /* Second pass: read channels descriptions */
+ while( fgets( psz_line, INTF_MAX_CMD_SIZE, p_file ) != NULL )
+ {
+ if( !ParseChannel( p_channel, psz_line ) )
+ {
+ intf_DbgMsg("channel [%d] %s : method %d (%s:%d vlan %d)\n",
+ p_channel->i_channel, p_channel->psz_description,
+ p_channel->i_input_method, p_channel->psz_input_source,
+ p_channel->i_input_port, p_channel->i_input_vlan );
+ p_channel++;
+ }
+ }
+
+ /* Add marker at the end of the array */
+ p_channel->i_channel = -1;
}
-#endif
+ /* Close file */
+ fclose( p_file );
return( 0 );
}
-/*******************************************************************************
- * EndInterface: clean interface after main loop
- *******************************************************************************
- * This function destroys specific interfaces and close output devices.
- *******************************************************************************/
-static void EndInterface( intf_thread_t *p_intf )
+/*****************************************************************************
+ * UnloadChannels: unload channels description
+ *****************************************************************************
+ * This function free all resources allocated by LoadChannels, if any.
+ *****************************************************************************/
+static void UnloadChannels( intf_thread_t *p_intf )
{
- int i_thread; /* thread index */
- boolean_t b_thread; /* flag for remaing threads */
- int pi_vout_status[VOUT_MAX_THREADS]; /* vout threads status */
-
-
-
- /* Close X11 console */
- intf_CloseXConsole( &p_intf->xconsole );
-
- /* Destroy all remaining input threads */
- for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
+ int i_channel; /* channel index */
+
+ if( p_intf->p_channel != NULL )
{
- if( p_intf->pp_input[i_thread] != NULL )
+ /* Free allocated strings */
+ for( i_channel = 0;
+ p_intf->p_channel[ i_channel ].i_channel != -1;
+ i_channel++ )
{
- input_DestroyThread( p_intf->pp_input[i_thread] );
- }
+ if( p_intf->p_channel[ i_channel ].psz_description != NULL )
+ {
+ free( p_intf->p_channel[ i_channel ].psz_description );
+ }
+ if( p_intf->p_channel[ i_channel ].psz_input_source != NULL )
+ {
+ free( p_intf->p_channel[ i_channel ].psz_input_source );
+ }
+ }
+
+ /* Free array */
+ free( p_intf->p_channel );
+ p_intf->p_channel = NULL;
}
+}
- /* Destroy all remaining video output threads - all destruction orders are send,
- * then all THREAD_OVER status are received */
- for( i_thread = 0, b_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
+
+/*****************************************************************************
+ * ParseChannel: parse a channel description line
+ *****************************************************************************
+ * See LoadChannels. This function return non 0 on parsing error.
+ *****************************************************************************/
+static int ParseChannel( intf_channel_t *p_channel, char *psz_str )
+{
+ char * psz_index; /* current character */
+ char * psz_end; /* end pointer for strtol */
+ int i_field; /* field number, -1 on error */
+ int i_field_length; /* field length, for text fields */
+
+ /* Set some default fields */
+ p_channel->i_channel = 0;
+ p_channel->psz_description = NULL;
+ p_channel->i_input_method = 0;
+ p_channel->psz_input_source = NULL;
+ p_channel->i_input_port = 0;
+ p_channel->i_input_vlan = 0;
+
+ /* Parse string */
+ i_field = 0;
+ for( psz_index = psz_str; (i_field != -1) && (*psz_index != '\0'); psz_index++ )
{
- if( p_intf->pp_vout[i_thread] != NULL )
+ if( *psz_index == ';' )
{
- vout_DestroyThread( p_intf->pp_vout[i_thread], &pi_vout_status[i_thread] );
- b_thread = 1;
+ /* Mark end of field */
+ *psz_index = '\0';
+
+ /* Parse field */
+ switch( i_field++ )
+ {
+ case 0: /* channel number */
+ p_channel->i_channel = strtol( psz_str, &psz_end, 0);
+ if( (*psz_str == '\0') || (*psz_end != '\0') )
+ {
+ i_field = -1;
+ }
+ break;
+ case 1: /* channel description */
+ i_field_length = strlen( psz_str );
+ if( i_field_length != 0 )
+ {
+ p_channel->psz_description = malloc( i_field_length + 1 );
+ if( p_channel->psz_description == NULL )
+ {
+ intf_ErrMsg("error: %s\n", strerror( ENOMEM ));
+ i_field = -1;
+ }
+ else
+ {
+ strcpy( p_channel->psz_description, psz_str );
+ }
+ }
+ break;
+ case 2: /* input method */
+ p_channel->i_input_method = strtol( psz_str, &psz_end, 0);
+ if( (*psz_str == '\0') || (*psz_end != '\0') )
+ {
+ i_field = -1;
+ }
+ break;
+ case 3: /* input source */
+ i_field_length = strlen( psz_str );
+ if( i_field_length != 0 )
+ {
+ p_channel->psz_input_source = malloc( i_field_length + 1 );
+ if( p_channel->psz_input_source == NULL )
+ {
+ intf_ErrMsg("error: %s\n", strerror( ENOMEM ));
+ i_field = -1;
+ }
+ else
+ {
+ strcpy( p_channel->psz_input_source, psz_str );
+ }
+ }
+ break;
+ case 4: /* input port */
+ p_channel->i_input_port = strtol( psz_str, &psz_end, 0);
+ if( (*psz_str == '\0') || (*psz_end != '\0') )
+ {
+ i_field = -1;
+ }
+ break;
+ case 5: /* input vlan */
+ p_channel->i_channel = strtol( psz_str, &psz_end, 0);
+ if( (*psz_str == '\0') || (*psz_end != '\0') )
+ {
+ i_field = -1;
+ }
+ break;
+ /* ... following fields are ignored */
+ }
+
+ /* Set new beginning of field */
+ psz_str = psz_index + 1;
}
}
- while( b_thread )
+
+ /* At least the first three fields must be parsed sucessfully for function
+ * success. Other parsing errors are returned using i_field = -1. */
+ if( i_field < 3 )
{
- msleep( INTF_IDLE_SLEEP );
- b_thread = 0;
- for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
+ /* Function fails. Free allocated strings */
+ if( p_channel->psz_description != NULL )
{
- if( (p_intf->pp_vout[i_thread] != NULL)
- && (pi_vout_status[i_thread] != THREAD_OVER) )
- {
- b_thread = 1;
- }
+ free( p_channel->psz_description );
+ }
+ if( p_channel->psz_input_source != NULL )
+ {
+ free( p_channel->psz_input_source );
}
+ return( 1 );
}
-
+ /* Return success */
+ return( 0 );
}