--- /dev/null
+/*****************************************************************************
+ * dvb.c : DVB channel list import (szap/tzap/czap compatible channel lists)
+ *****************************************************************************
+ * Copyright (C) 2005 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Gildas Bazin <gbazin@videolan.org>
+ *
+ * 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 <stdlib.h> /* malloc(), free() */
+
+#include <vlc/vlc.h>
+#include <vlc/input.h>
+#include <vlc/intf.h>
+
+#include "playlist.h"
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int Demux( demux_t *p_demux);
+static int Control( demux_t *p_demux, int i_query, va_list args );
+
+static int ParseLine( char *, char **, char ***, int *);
+
+/*****************************************************************************
+ * Import_DVB: main import function
+ *****************************************************************************/
+int E_(Import_DVB)( vlc_object_t *p_this )
+{
+ demux_t *p_demux = (demux_t *)p_this;
+ uint8_t *p_peek;
+ int i_peek;
+ char *psz_ext;
+ vlc_bool_t b_valid = VLC_FALSE;
+
+ psz_ext = strrchr ( p_demux->psz_path, '.' );
+
+ if( !( psz_ext && !strncasecmp( psz_ext, ".conf", 5 ) ) &&
+ !p_demux->b_force ) return VLC_EGENERIC;
+
+ /* Check if this really is a channels file */
+ if( (i_peek = stream_Peek( p_demux->s, &p_peek, 1024 )) > 0 )
+ {
+ char psz_line[1024+1];
+ int i;
+
+ for( i = 0; i < i_peek; i++ )
+ {
+ if( p_peek[i] == '\n' ) break;
+ psz_line[i] = p_peek[i];
+ }
+ psz_line[i] = 0;
+
+ if( ParseLine( psz_line, 0, 0, 0 ) ) b_valid = VLC_TRUE;
+ }
+
+ if( !b_valid ) return VLC_EGENERIC;
+
+ msg_Dbg( p_demux, "found valid DVB conf playlist file");
+
+ p_demux->pf_control = Control;
+ p_demux->pf_demux = Demux;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Deactivate: frees unused data
+ *****************************************************************************/
+void E_(Close_DVB)( vlc_object_t *p_this )
+{
+}
+
+/*****************************************************************************
+ * Demux: The important stuff
+ *****************************************************************************/
+static int Demux( demux_t *p_demux )
+{
+ playlist_t *p_playlist;
+ char *psz_line;
+ playlist_item_t *p_current;
+ vlc_bool_t b_play;
+
+ p_playlist = (playlist_t *) vlc_object_find( p_demux, VLC_OBJECT_PLAYLIST,
+ FIND_PARENT );
+ if( !p_playlist )
+ {
+ msg_Err( p_demux, "can't find playlist" );
+ return -1;
+ }
+
+ b_play = E_(FindItem)( p_demux, p_playlist, &p_current );
+
+ playlist_ItemToNode( p_playlist, p_current );
+ p_current->input.i_type = ITEM_TYPE_PLAYLIST;
+
+ while( (psz_line = stream_ReadLine( p_demux->s )) )
+ {
+ playlist_item_t *p_item;
+ char **ppsz_options = NULL;
+ int i, i_options = 0;
+ char *psz_name = NULL;
+
+ if( !ParseLine( psz_line, &psz_name, &ppsz_options, &i_options ) )
+ {
+ free( psz_line );
+ continue;
+ }
+
+ EnsureUTF8( psz_name );
+
+ p_item = playlist_ItemNew( p_playlist, "dvb:", psz_name );
+ for( i = 0; i< i_options; i++ )
+ {
+ EnsureUTF8( ppsz_options[i] );
+ playlist_ItemAddOption( p_item, ppsz_options[i] );
+ }
+ playlist_NodeAddItem( p_playlist, p_item,
+ p_current->pp_parents[0]->i_view,
+ p_current, PLAYLIST_APPEND, PLAYLIST_END );
+
+ /* We need to declare the parents of the node as the
+ * * same of the parent's ones */
+ playlist_CopyParents( p_current, p_item );
+ vlc_input_item_CopyOptions( &p_current->input, &p_item->input );
+
+ while( i_options-- ) free( ppsz_options[i_options] );
+ if( ppsz_options ) free( ppsz_options );
+
+ free( psz_line );
+ }
+
+ /* Go back and play the playlist */
+ if( b_play && p_playlist->status.p_item &&
+ p_playlist->status.p_item->i_children > 0 )
+ {
+ playlist_Control( p_playlist, PLAYLIST_VIEWPLAY,
+ p_playlist->status.i_view,
+ p_playlist->status.p_item,
+ p_playlist->status.p_item->pp_children[0] );
+ }
+
+ vlc_object_release( p_playlist );
+ return VLC_SUCCESS;
+}
+
+static struct
+{
+ char *psz_name;
+ char *psz_option;
+
+} dvb_options[] =
+{
+ { "INVERSION_OFF", "dvb-inversion=0" },
+ { "INVERSION_ON", "dvb-inversion=1" },
+ { "INVERSION_AUTO", "dvb-inversion=2" },
+
+ { "BANDWIDTH_AUTO", "dvb-bandwidth=0" },
+ { "BANDWIDTH_6_MHZ", "dvb-bandwidth=6" },
+ { "BANDWIDTH_7_MHZ", "dvb-bandwidth=7" },
+ { "BANDWIDTH_8_MHZ", "dvb-bandwidth=8" },
+
+ { "FEC_NONE", "dvb-fec=0" },
+ { "FEC_1_2", "dvb-fec=1" },
+ { "FEC_2_3", "dvb-fec=2" },
+ { "FEC_3_4", "dvb-fec=3" },
+ { "FEC_4_5", "dvb-fec=4" },
+ { "FEC_5_6", "dvb-fec=5" },
+ { "FEC_6_7", "dvb-fec=6" },
+ { "FEC_7_8", "dvb-fec=7" },
+ { "FEC_8_9", "dvb-fec=8" },
+ { "FEC_AUTO", "dvb-fec=9" },
+
+ { "GUARD_INTERVAL_AUTO", "dvb-guard=0" },
+ { "GUARD_INTERVAL_1_4", "dvb-guard=4" },
+ { "GUARD_INTERVAL_1_8", "dvb-guard=8" },
+ { "GUARD_INTERVAL_1_16", "dvb-guard=16" },
+ { "GUARD_INTERVAL_1_32", "dvb-guard=32" },
+
+ { "HIERARCHY_NONE", "dvb-hierarchy=-1" },
+ { "HIERARCHY_1", "dvb-hierarchy=1" },
+ { "HIERARCHY_2", "dvb-hierarchy=2" },
+ { "HIERARCHY_4", "dvb-hierarchy=4" },
+
+ { "QPSK", "dvb-modulation=-1" },
+ { "QAM_AUTO", "dvb-modulation=0" },
+ { "QAM_16", "dvb-modulation=16" },
+ { "QAM_32", "dvb-modulation=32" },
+ { "QAM_64", "dvb-modulation=64" },
+ { "QAM_128", "dvb-modulation=128" },
+ { "QAM_256", "dvb-modulation=256" },
+
+ { "TRANSMISSION_MODE_AUTO", "dvb-transmission=0" },
+ { "TRANSMISSION_MODE_2K", "dvb-transmission=2" },
+ { "TRANSMISSION_MODE_8K", "dvb-transmission=8" },
+ { 0, 0 }
+
+};
+
+static int ParseLine( char *psz_line, char **ppsz_name,
+ char ***pppsz_options, int *pi_options )
+{
+ char *psz_name = 0, *psz_parse = psz_line;
+ int i_count = 0, i_program = 0, i_frequency = 0;
+ vlc_bool_t b_valid = VLC_FALSE;
+
+ if( pppsz_options ) *pppsz_options = 0;
+ if( pi_options ) *pi_options = 0;
+ if( ppsz_name ) *ppsz_name = 0;
+
+ /* Skip leading tabs and spaces */
+ while( *psz_parse == ' ' || *psz_parse == '\t' ||
+ *psz_parse == '\n' || *psz_parse == '\r' ) psz_parse++;
+
+ /* Ignore comments */
+ if( *psz_parse == '#' ) return VLC_FALSE;
+
+ while( psz_parse )
+ {
+ char *psz_option = 0;
+ char *psz_end = strchr( psz_parse, ':' );
+ if( psz_end ) { *psz_end = 0; psz_end++; }
+
+ if( i_count == 0 )
+ {
+ /* Channel name */
+ psz_name = psz_parse;
+ }
+ else if( i_count == 1 )
+ {
+ /* Frequency */
+ char *psz_end;
+ long i_value;
+
+ i_value = strtol( psz_parse, &psz_end, 10 );
+ if( psz_end == psz_parse ||
+ i_value == LONG_MAX || i_value == LONG_MIN ) break;
+
+ i_frequency = i_value;
+ }
+ else
+ {
+ int i;
+
+ /* Check option name with our list */
+ for( i = 0; dvb_options[i].psz_name; i++ )
+ {
+ if( !strcmp( psz_parse, dvb_options[i].psz_name ) )
+ {
+ psz_option = dvb_options[i].psz_option;
+
+ /* If we recognize one of the strings, then we are sure
+ * the data is really valid (ie. a channels file). */
+ b_valid = VLC_TRUE;
+ break;
+ }
+ }
+
+ if( !psz_option )
+ {
+ /* Option not recognized, test if it is a number */
+ char *psz_end;
+ long i_value;
+
+ i_value = strtol( psz_parse, &psz_end, 10 );
+ if( psz_end != psz_parse &&
+ i_value != LONG_MAX && i_value != LONG_MIN )
+ {
+ i_program = i_value;
+ }
+ }
+ }
+
+ if( psz_option && pppsz_options && pi_options )
+ {
+ psz_option = strdup( psz_option );
+ INSERT_ELEM( *pppsz_options, (*pi_options), (*pi_options),
+ psz_option );
+ }
+
+ psz_parse = psz_end;
+ i_count++;
+ }
+
+ if( !b_valid && pppsz_options && pi_options )
+ {
+ /* This isn't a valid channels file, cleanup everything */
+ while( (*pi_options)-- ) free( (*pppsz_options)[*pi_options] );
+ if( *pppsz_options ) free( *pppsz_options );
+ *pppsz_options = 0; *pi_options = 0;
+ }
+
+ if( i_program && pppsz_options && pi_options )
+ {
+ char *psz_option;
+
+ asprintf( &psz_option, "program=%i", i_program );
+ INSERT_ELEM( *pppsz_options, (*pi_options), (*pi_options),
+ psz_option );
+ }
+ if( i_frequency && pppsz_options && pi_options )
+ {
+ char *psz_option;
+
+ asprintf( &psz_option, "dvb-frequency=%i", i_frequency );
+ INSERT_ELEM( *pppsz_options, (*pi_options), (*pi_options),
+ psz_option );
+ }
+ if( ppsz_name && psz_name ) *ppsz_name = strdup( psz_name );
+
+ return b_valid;
+}
+
+static int Control( demux_t *p_demux, int i_query, va_list args )
+{
+ return VLC_EGENERIC;
+}
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