-/*******************************************************************************
+/*****************************************************************************
* 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, USA.
+ *****************************************************************************/
-/*******************************************************************************
+/*****************************************************************************
* Preamble
- *******************************************************************************/
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/uio.h> /* for input.h */
+ *****************************************************************************/
+#include "defs.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 "threads.h"
#include "mtime.h"
-#include "vlc_thread.h"
+#include "plugins.h"
+#include "playlist.h"
#include "input.h"
+
+#include "audio_output.h"
+
#include "intf_msg.h"
#include "interface.h"
#include "intf_cmd.h"
#include "intf_console.h"
-#include "main.h"
+
#include "video.h"
#include "video_output.h"
-#include "intf_sys.h"
+#include "main.h"
+
+/*****************************************************************************
+ * 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 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 create specific interfaces. It send
- * it's own error messages.
- *******************************************************************************/
+ *****************************************************************************
+ * 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;
+{
+ intf_thread_t * p_intf;
+ typedef void ( intf_getplugin_t ) ( intf_thread_t * p_intf );
+ int i_index;
/* Allocate structure */
p_intf = malloc( sizeof( intf_thread_t ) );
if( !p_intf )
{
- intf_ErrMsg("error: %s\n", strerror( ENOMEM ) );
- return( NULL );
+ intf_ErrMsg("error: %s\n", strerror( ENOMEM ) );
+ return( NULL );
+ }
+
+ /* Get a suitable interface plugin */
+ for( i_index = 0 ; i_index < p_main->p_bank->i_plugin_count ; i_index++ )
+ {
+ /* If there's a plugin in p_info ... */
+ if( p_main->p_bank->p_info[ i_index ] != NULL )
+ {
+ /* ... and if this plugin provides the functions we want ... */
+ if( p_main->p_bank->p_info[ i_index ]->intf_GetPlugin != NULL )
+ {
+ /* ... then get these functions */
+ ( (intf_getplugin_t *)
+ p_main->p_bank->p_info[ i_index ]->intf_GetPlugin )( p_intf );
+ }
+ }
}
/* Initialize structure */
- p_intf->b_die = 0;
+ p_intf->b_die = 0;
p_intf->p_vout = NULL;
- p_intf->p_input = 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");
- free( p_intf );
+ free( p_intf );
return( NULL );
}
- if( intf_SysCreate( p_intf ) )
+ if( p_intf->p_sys_create( p_intf ) )
{
- intf_ErrMsg("error: can't create interface\n");
- intf_ConsoleDestroy( p_intf->p_console );
- free( p_intf );
- return( NULL );
- }
+ intf_ErrMsg("error: can't create interface\n");
+ intf_ConsoleDestroy( p_intf->p_console );
+ free( p_intf );
+ return( NULL );
+ }
- intf_Msg("Interface initialized\n");
+ intf_Msg("Interface initialized\n");
return( p_intf );
}
-/*******************************************************************************
+/*****************************************************************************
* intf_Run
- *******************************************************************************
+ *****************************************************************************
* Initialization script and main interface loop.
- *******************************************************************************/
+ *****************************************************************************/
void intf_Run( intf_thread_t *p_intf )
-{
- /* Execute the initialization script - if a positive number is returned,
+{
+ if( p_main->p_playlist->p_list )
+ {
+ p_intf->p_input = input_CreateThread( INPUT_METHOD_TS_FILE, NULL, 0, 0, p_main->p_intf->p_vout, p_main->p_aout, NULL );
+ }
+ /* 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 )
+ else if( intf_ExecScript( main_GetPszVariable( INTF_INIT_SCRIPT_VAR, INTF_INIT_SCRIPT_DEFAULT ) ) > 0 )
{
- intf_ErrMsg("warning: error(s) during startup script\n");
+ intf_ErrMsg("warning: error(s) during startup script\n");
}
/* Main loop */
intf_FlushMsg();
/* Manage specific interface */
- intf_SysManage( p_intf );
+ p_intf->p_sys_manage( p_intf );
/* Check attached threads status */
if( (p_intf->p_vout != NULL) && p_intf->p_vout->b_error )
{
- //?? add aout error detection
- p_intf->b_die = 1;
- }
+ /* 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");
+ 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
+ /* 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 );
}
}
-/*******************************************************************************
+/*****************************************************************************
* 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 */
- intf_SysDestroy( p_intf );
+ p_intf->p_sys_destroy( p_intf );
intf_ConsoleDestroy( p_intf->p_console );
+ /* Unload channels */
+ UnloadChannels( p_intf );
+
/* Free structure */
free( p_intf );
}
-/*******************************************************************************
- * intf_SelectInput: change input stream
- *******************************************************************************
- * Kill existing input, if any, and try to open a new one. If p_cfg is NULL,
- * no new input will be openned.
- *******************************************************************************/
-int intf_SelectInput( intf_thread_t * p_intf, input_cfg_t *p_cfg )
+/*****************************************************************************
+ * 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 )
{
- intf_DbgMsg("0x%x\n", p_intf );
-
- /* Kill existing input, if any */
- if( p_intf->p_input != NULL )
- {
- input_DestroyThread( p_intf->p_input /*??, NULL*/ );
- p_intf->p_input = NULL;
- }
-
- /* Open new one */
- if( p_cfg != NULL )
- {
- p_intf->p_input = input_CreateThread( p_cfg /*??, NULL*/ );
+ intf_channel_t * p_channel; /* channel */
+
+ /* Look for channel in array */
+ if( p_intf->p_channel != 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 );
+ }
+ }
}
-
- return( (p_cfg != NULL) && (p_intf->p_input == NULL) );
+
+ /* 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 )
{
+ static int i_volbackup;
+
switch( i_key )
{
- case 'Q': /* quit order */
+ case 'Q': /* quit order */
case 'q':
- case 27:
+ case 27: /* escape key */
+ case 3: /* ^C */
p_intf->b_die = 1;
- break;
- case '0': /* source change */
+ break;
+ case '0': /* source change */
case '1':
case '2':
case '3':
case '6':
case '7':
case '8':
- case '9':
- // ??
+ 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 + */
- // ??
+ case '+': /* volume + */
+ if( (p_main->p_aout != NULL) && (p_main->p_aout->vol < VOLMAX) )
+ p_main->p_aout->vol += VOLSTEP;
break;
- case '-': /* volume - */
- // ??
+ case '-': /* volume - */
+ if( (p_main->p_aout != NULL) && (p_main->p_aout->vol > VOLSTEP) )
+ p_main->p_aout->vol -= VOLSTEP;
break;
- case 'M': /* toggle mute */
- case 'm':
- // ??
- break;
- case 'g': /* gamma - */
- if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_gamma > -INTF_GAMMA_MAX) )
+ case 'M': /* toggle mute */
+ case 'm':
+ if( (p_main->p_aout != NULL) && (p_main->p_aout->vol))
+ {
+ i_volbackup = p_main->p_aout->vol;
+ p_main->p_aout->vol = 0;
+ }
+ else if( (p_main->p_aout != NULL) && (!p_main->p_aout->vol))
+ p_main->p_aout->vol = i_volbackup;
+ 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->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_MAX) )
- {
+ }
+ 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 'x': /* horizontal aspect ratio - */
- if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_x_ratio > INTF_RATIO_MIN) )
+ break;
+ case 'c': /* toggle grayscale */
+ if( p_intf->p_vout != NULL )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
- p_intf->p_vout->f_x_ratio /= INTF_RATIO_FACTOR;
- p_intf->p_vout->i_changes |= VOUT_RATIO_CHANGE;
+ 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 'X': /* horizontal aspect ratio + */
- if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_x_ratio < INTF_RATIO_MAX) )
- {
+ }
+ break;
+ case ' ': /* toggle interface */
+ if( p_intf->p_vout != NULL )
+ {
vlc_mutex_lock( &p_intf->p_vout->change_lock );
- p_intf->p_vout->f_x_ratio *= INTF_RATIO_FACTOR;
- p_intf->p_vout->i_changes |= VOUT_RATIO_CHANGE;
+ 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 'y': /* vertical aspect ratio - */
- if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_y_ratio > INTF_RATIO_MIN) )
+ }
+ break;
+ case 'i': /* toggle info */
+ if( p_intf->p_vout != NULL )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
- p_intf->p_vout->f_y_ratio /= INTF_RATIO_FACTOR;
- p_intf->p_vout->i_changes |= VOUT_RATIO_CHANGE;
+ 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 'Y': /* horizontal aspect ratio + */
- if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_y_ratio < INTF_RATIO_MAX) )
- {
+ }
+ break;
+ case 's': /* toggle scaling */
+ if( p_intf->p_vout != NULL )
+ {
vlc_mutex_lock( &p_intf->p_vout->change_lock );
- p_intf->p_vout->f_y_ratio *= INTF_RATIO_FACTOR;
- p_intf->p_vout->i_changes |= VOUT_RATIO_CHANGE;
+ 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;
- case 'f': /* toggle fullscreen */
- //??
- break;
- case ' ': /* toggle info */
- if( p_intf->p_vout != NULL )
+ break;
+ default: /* unknown key */
+ return( 1 );
+ }
+
+ return( 0 );
+}
+
+/* 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("error: can't open %s (%s)\n", psz_filename, strerror(errno));
+ return( 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 )
+ {
+ /* 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 )
{
- 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 );
+ intf_ErrMsg("error: %s\n", strerror(ENOMEM));
+ fclose( p_file );
+ return( 1 );
}
- break;
- default: /* unknown key */
- 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;
}
- return( 0 );
+ /* Close file */
+ fclose( p_file );
+ return( 0 );
}
-
-
+/*****************************************************************************
+ * UnloadChannels: unload channels description
+ *****************************************************************************
+ * This function free all resources allocated by LoadChannels, if any.
+ *****************************************************************************/
+static void UnloadChannels( intf_thread_t *p_intf )
+{
+ int i_channel; /* channel index */
+
+ if( p_intf->p_channel != NULL )
+ {
+ /* Free allocated strings */
+ for( i_channel = 0;
+ p_intf->p_channel[ i_channel ].i_channel != -1;
+ i_channel++ )
+ {
+ 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;
+ }
+}
+
+
+/*****************************************************************************
+ * 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( *psz_index == ';' )
+ {
+ /* 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;
+ }
+ }
+
+ /* 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 )
+ {
+ /* Function fails. Free allocated strings */
+ if( p_channel->psz_description != NULL )
+ {
+ free( p_channel->psz_description );
+ }
+ if( p_channel->psz_input_source != NULL )
+ {
+ free( p_channel->psz_input_source );
+ }
+ return( 1 );
+ }
+
+ /* Return success */
+ return( 0 );
+}