# include <dvbpsi/pmt.h>
# include <dvbpsi/dr.h>
# include <dvbpsi/psi.h>
+# include <dvbpsi/demux.h>
+# include <dvbpsi/sdt.h>
+# include <dvbpsi/nit.h>
#else
# include "dvbpsi.h"
# include "descriptor.h"
# include "tables/pmt.h"
# include "descriptors/dr.h"
# include "psi.h"
+# include "demux.h"
+# include "sdt.h"
+# include "nit.h"
#endif
#ifdef ENABLE_HTTPD
false );
add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
true );
- add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
+ add_integer( "dvb-frequency", 0, NULL, FREQ_TEXT, FREQ_LONGTEXT,
false );
add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT, INVERSION_LONGTEXT,
true );
add_shortcut( "usdigital" );
set_callbacks( Open, Close );
+
vlc_module_end();
static block_t *Block( access_t * );
static int Control( access_t *, int, va_list );
+static block_t *BlockScan( access_t * );
+
#define DVB_READ_ONCE 20
#define DVB_READ_ONCE_START 2
+#define DVB_READ_ONCE_SCAN 1
#define TS_PACKET_SIZE 188
+#define DVB_SCAN_MAX_SIGNAL_TIME (300*1000)
+#define DVB_SCAN_MAX_LOCK_TIME (5000*1000)
+#define DVB_SCAN_MAX_PROBE_TIME (30000*1000)
+
static void FilterUnset( access_t *, int i_max );
static void FilterUnsetPID( access_t *, int i_pid );
static void FilterSet( access_t *, int i_pid, int i_type );
static void VarInit( access_t * );
static int ParseMRL( access_t * );
-
/*****************************************************************************
* Open: open the frontend device
*****************************************************************************/
return VLC_EGENERIC;
}
- /* Setting frontend parameters for tuning the hardware */
- msg_Dbg( p_access, "trying to tune the frontend...");
- if( FrontendSet( p_access ) < 0 )
+ /* */
+ p_sys->b_scan_mode = var_GetInteger( p_access, "dvb-frequency" ) == 0;
+ if( p_sys->b_scan_mode )
{
- FrontendClose( p_access );
- free( p_sys );
- return VLC_EGENERIC;
+ msg_Dbg( p_access, "DVB scan mode selected" );
+ p_access->pf_block = BlockScan;
+ }
+ else
+ {
+ /* Setting frontend parameters for tuning the hardware */
+ msg_Dbg( p_access, "trying to tune the frontend...");
+ if( FrontendSet( p_access ) < 0 )
+ {
+ FrontendClose( p_access );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
}
/* Opening DVR device */
return VLC_EGENERIC;
}
- p_sys->b_budget_mode = var_GetBool( p_access, "dvb-budget-mode" );
- if( p_sys->b_budget_mode )
+ if( p_sys->b_scan_mode )
{
- msg_Dbg( p_access, "setting filter on all PIDs" );
- FilterSet( p_access, 0x2000, OTHER_TYPE );
+ scan_parameter_t parameter;
+
+ msg_Dbg( p_access, "setting filter on PAT/NIT/SDT (DVB only)" );
+ FilterSet( p_access, 0x00, OTHER_TYPE ); // PAT
+ FilterSet( p_access, 0x10, OTHER_TYPE ); // NIT
+ FilterSet( p_access, 0x11, OTHER_TYPE ); // SDT
+
+ if( FrontendGetScanParameter( p_access, ¶meter ) ||
+ scan_Init( VLC_OBJECT(p_access), &p_sys->scan, ¶meter ) )
+ {
+ Close( VLC_OBJECT(p_access) );
+ return VLC_EGENERIC;
+ }
}
else
{
- msg_Dbg( p_access, "setting filter on PAT" );
- FilterSet( p_access, 0x0, OTHER_TYPE );
- }
+ p_sys->b_budget_mode = var_GetBool( p_access, "dvb-budget-mode" );
+ if( p_sys->b_budget_mode )
+ {
+ msg_Dbg( p_access, "setting filter on all PIDs" );
+ FilterSet( p_access, 0x2000, OTHER_TYPE );
+ }
+ else
+ {
+ msg_Dbg( p_access, "setting filter on PAT" );
+ FilterSet( p_access, 0x0, OTHER_TYPE );
+ }
+
+ CAMOpen( p_access );
- CAMOpen( p_access );
+#ifdef ENABLE_HTTPD
+ HTTPOpen( p_access );
+#endif
+ }
- if( p_sys->b_budget_mode )
+ if( p_sys->b_scan_mode )
+ p_sys->i_read_once = DVB_READ_ONCE_SCAN;
+ else if( p_sys->b_budget_mode )
p_sys->i_read_once = DVB_READ_ONCE;
else
p_sys->i_read_once = DVB_READ_ONCE_START;
-#ifdef ENABLE_HTTPD
- HTTPOpen( p_access );
-#endif
-
return VLC_SUCCESS;
}
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys = p_access->p_sys;
- FilterUnset( p_access, p_sys->b_budget_mode ? 1 : MAX_DEMUX );
+ FilterUnset( p_access, p_sys->b_budget_mode && !p_sys->b_scan_mode ? 1 : MAX_DEMUX );
DVRClose( p_access );
FrontendClose( p_access );
- CAMClose( p_access );
+ if( p_sys->b_scan_mode )
+ scan_Clean( &p_sys->scan );
+ else
+ CAMClose( p_access );
#ifdef ENABLE_HTTPD
- HTTPClose( p_access );
+ if( !p_sys->b_scan_mode )
+ HTTPClose( p_access );
#endif
free( p_sys );
return p_block;
}
+/*****************************************************************************
+ * BlockScan:
+ *****************************************************************************/
+static block_t *BlockScan( access_t *p_access )
+{
+ access_sys_t *p_sys = p_access->p_sys;
+ scan_t *p_scan = &p_sys->scan;
+ scan_configuration_t cfg;
+ scan_session_t session;
+
+ /* */
+ if( scan_Next( p_scan, &cfg ) )
+ {
+ const bool b_first_eof = !p_access->info.b_eof;
+
+ if( b_first_eof )
+ msg_Warn( p_access, "Scanning finished" );
+
+ /* */
+ p_access->info.b_eof = true;
+ return b_first_eof ? scan_GetM3U( p_scan ) : NULL;
+ }
+
+ /* */
+
+ if( scan_session_Init( VLC_OBJECT(p_access), &session, &cfg ) )
+ return NULL;
+
+ /* */
+ msg_Dbg( p_access, "Scanning frequency %d", cfg.i_frequency );
+ var_SetInteger( p_access, "dvb-frequency", cfg.i_frequency );
+ var_SetInteger( p_access, "dvb-bandwidth", cfg.i_bandwidth );
+
+ /* Setting frontend parameters for tuning the hardware */
+ if( FrontendSet( p_access ) < 0 )
+ {
+ msg_Err( p_access, "Failed to tune the frontend" );
+ p_access->info.b_eof = true;
+ return NULL;
+ }
+
+ /* */
+ int64_t i_scan_start = mdate();
+
+ bool b_has_dvb_signal = false;
+ bool b_has_lock = false;
+ int i_best_snr = -1;
+
+ for ( ; ; )
+ {
+ struct pollfd ufds[2];
+ int i_ret;
+
+ /* Initialize file descriptor sets */
+ memset (ufds, 0, sizeof (ufds));
+ ufds[0].fd = p_sys->i_handle;
+ ufds[0].events = POLLIN;
+ ufds[1].fd = p_sys->i_frontend_handle;
+ ufds[1].events = POLLPRI;
+
+ /* We'll wait 0.1 second if nothing happens */
+ /* Find if some data is available */
+ i_ret = poll( ufds, 2, 100 );
+
+ if( !vlc_object_alive (p_access) || scan_IsCancelled( p_scan ) )
+ break;
+
+ if( i_ret <= 0 )
+ {
+ const mtime_t i_scan_time = mdate() - i_scan_start;
+ frontend_status_t status;
+
+ FrontendGetStatus( p_access, &status );
+
+ b_has_dvb_signal |= status.b_has_carrier;
+ b_has_lock |= status.b_has_lock;
+
+ if( ( !b_has_dvb_signal && i_scan_time > DVB_SCAN_MAX_SIGNAL_TIME ) ||
+ ( !b_has_lock && i_scan_time > DVB_SCAN_MAX_LOCK_TIME ) ||
+ ( i_scan_time > DVB_SCAN_MAX_PROBE_TIME ) )
+ {
+ msg_Dbg( p_access, "timed out scanning current frequency (s=%d l=%d)", b_has_dvb_signal, b_has_lock );
+ break;
+ }
+ }
+
+ if( i_ret < 0 )
+ {
+ if( errno == EINTR )
+ continue;
+
+ msg_Err( p_access, "poll error: %m" );
+ scan_session_Clean( p_scan, &session );
+
+ p_access->info.b_eof = true;
+ return NULL;
+ }
+
+ if( ufds[1].revents )
+ {
+ frontend_statistic_t stat;
+
+ FrontendPoll( p_access );
+
+ if( !FrontendGetStatistic( p_access, &stat ) )
+ {
+ if( stat.i_snr > i_best_snr )
+ i_best_snr = stat.i_snr;
+ }
+ }
+
+ if ( p_sys->i_frontend_timeout && mdate() > p_sys->i_frontend_timeout )
+ {
+ msg_Warn( p_access, "no lock, tuning again" );
+ FrontendSet( p_access );
+ }
+
+ if ( ufds[0].revents )
+ {
+ const int i_read_once = 1;
+ block_t *p_block = block_New( p_access, i_read_once * TS_PACKET_SIZE );
+
+ if( ( i_ret = read( p_sys->i_handle, p_block->p_buffer,
+ i_read_once * TS_PACKET_SIZE ) ) <= 0 )
+ {
+ msg_Warn( p_access, "read failed (%m)" );
+ block_Release( p_block );
+ continue;
+ }
+ p_block->i_buffer = i_ret;
+
+ /* */
+ if( scan_session_Push( &session, p_block ) )
+ {
+ msg_Dbg( p_access, "finished scanning current frequency" );
+ break;
+ }
+ }
+ }
+
+ /* */
+ if( i_best_snr > 0 )
+ scan_service_SetSNR( &session, i_best_snr );
+
+ scan_session_Clean( p_scan, &session );
+ return NULL;
+}
+
/*****************************************************************************
* Control:
*****************************************************************************/
bool *pb_bool, b_bool;
int *pi_int, i_int;
int64_t *pi_64;
+ dvbpsi_pmt_t *p_pmt;
switch( i_query )
{
/* */
case ACCESS_GET_MTU:
pi_int = (int*)va_arg( args, int * );
- *pi_int = DVB_READ_ONCE * TS_PACKET_SIZE;
+ if( p_sys->b_scan_mode )
+ *pi_int = 0;
+ else
+ *pi_int = DVB_READ_ONCE * TS_PACKET_SIZE;
break;
case ACCESS_GET_PTS_DELAY:
return VLC_EGENERIC;
case ACCESS_SET_PRIVATE_ID_STATE:
+ if( p_sys->b_scan_mode )
+ return VLC_EGENERIC;
+
i_int = (int)va_arg( args, int ); /* Private data (pid for now)*/
b_bool = (bool)va_arg( args, int ); /* b_selected */
if( !p_sys->b_budget_mode )
break;
case ACCESS_SET_PRIVATE_ID_CA:
- {
- dvbpsi_pmt_t *p_pmt;
+ if( p_sys->b_scan_mode )
+ return VLC_EGENERIC;
p_pmt = (dvbpsi_pmt_t *)va_arg( args, dvbpsi_pmt_t * );
CAMSet( p_access, p_pmt );
break;
- }
default:
msg_Warn( p_access, "unimplemented query in control" );
--- /dev/null
+/*****************************************************************************
+ * scan.c: DVB scanner helpers
+ *****************************************************************************
+ * Copyright (C) 2008 the VideoLAN team
+ *
+ * Authors: Laurent Aimar <fenrir@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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_access.h>
+#include <vlc_interface.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/poll.h>
+
+#include <errno.h>
+
+/* Include dvbpsi headers */
+#ifdef HAVE_DVBPSI_DR_H
+# include <dvbpsi/dvbpsi.h>
+# include <dvbpsi/descriptor.h>
+# include <dvbpsi/pat.h>
+# include <dvbpsi/pmt.h>
+# include <dvbpsi/dr.h>
+# include <dvbpsi/psi.h>
+# include <dvbpsi/demux.h>
+# include <dvbpsi/sdt.h>
+# include <dvbpsi/nit.h>
+#else
+# include "dvbpsi.h"
+# include "descriptor.h"
+# include "tables/pat.h"
+# include "tables/pmt.h"
+# include "descriptors/dr.h"
+# include "psi.h"
+# include "demux.h"
+# include "sdt.h"
+# include "nit.h"
+#endif
+
+#ifdef ENABLE_HTTPD
+# include "vlc_httpd.h"
+#endif
+
+#include "dvb.h"
+
+/* */
+scan_service_t *scan_service_New( int i_program, const scan_configuration_t *p_cfg )
+{
+ scan_service_t *p_srv = malloc( sizeof(*p_srv) );
+ if( !p_srv )
+ return NULL;
+
+ p_srv->i_program = i_program;
+ p_srv->cfg = *p_cfg;
+ p_srv->i_snr = -1;
+
+ p_srv->type = SERVICE_UNKNOWN;
+ p_srv->psz_name = NULL;
+ p_srv->i_channel = -1;
+ p_srv->b_crypted = false;
+
+ p_srv->i_network_id = -1;
+ p_srv->i_nit_version = -1;
+ p_srv->i_sdt_version = -1;
+
+ return p_srv;
+}
+
+void scan_service_Delete( scan_service_t *p_srv )
+{
+ free( p_srv->psz_name );
+ free( p_srv );
+}
+
+/* */
+int scan_Init( vlc_object_t *p_obj, scan_t *p_scan, const scan_parameter_t *p_parameter )
+{
+ if( p_parameter->type == SCAN_DVB_T )
+ {
+ msg_Dbg( p_obj, "DVB-T scanning:" );
+ msg_Dbg( p_obj, " - frequency [%d, %d]",
+ p_parameter->frequency.i_min, p_parameter->frequency.i_max );
+ msg_Dbg( p_obj, " - bandwidth [%d,%d]",
+ p_parameter->bandwidth.i_min, p_parameter->bandwidth.i_max );
+ msg_Dbg( p_obj, " - exhaustive mode %s", p_parameter->b_exhaustive ? "on" : "off" );
+ }
+ else
+ {
+ return VLC_EGENERIC;
+ }
+
+ p_scan->p_obj = VLC_OBJECT(p_obj);
+ p_scan->i_index = 0;
+ p_scan->i_dialog_id = -1;
+ TAB_INIT( p_scan->i_service, p_scan->pp_service );
+ p_scan->parameter = *p_parameter;
+ p_scan->i_time_start = mdate();
+
+ return VLC_SUCCESS;
+}
+void scan_Clean( scan_t *p_scan )
+{
+ if( p_scan->i_dialog_id >= 0 )
+ intf_UserHide( p_scan->p_obj, p_scan->i_dialog_id );
+
+ for( int i = 0; i < p_scan->i_service; i++ )
+ scan_service_Delete( p_scan->pp_service[i] );
+ TAB_CLEAN( p_scan->i_service, p_scan->pp_service );
+}
+
+
+static int ScanDvbTNextExhaustive( scan_t *p_scan, scan_configuration_t *p_cfg, double *pf_pos )
+{
+ if( p_scan->i_index > p_scan->parameter.frequency.i_count * p_scan->parameter.bandwidth.i_count )
+ return VLC_EGENERIC;
+
+ const int i_bi = p_scan->i_index % p_scan->parameter.bandwidth.i_count;
+ const int i_fi = p_scan->i_index / p_scan->parameter.bandwidth.i_count;
+
+ p_cfg->i_frequency = p_scan->parameter.frequency.i_min + i_fi * p_scan->parameter.frequency.i_step;
+ p_cfg->i_bandwidth = p_scan->parameter.bandwidth.i_min + i_bi * p_scan->parameter.bandwidth.i_step;
+
+ *pf_pos = (double)p_scan->i_index / p_scan->parameter.frequency.i_count;
+ return VLC_SUCCESS;
+}
+
+static int ScanDvbTNextFast( scan_t *p_scan, scan_configuration_t *p_cfg, double *pf_pos )
+{
+ static const int i_band_count = 2;
+ static const struct
+ {
+ const char *psz_name;
+ int i_min;
+ int i_max;
+ }
+ band[2] =
+ {
+ { "VHF", 174, 230 },
+ { "UHF", 470, 862 },
+ };
+ const int i_offset_count = 5;
+ const int i_mhz = 1000000;
+
+ /* We will probe the whole band divided in all bandwidth possibility trying
+ * i_offset_count offset around the position
+ */
+ for( ;; p_scan->i_index++ )
+ {
+
+ const int i_bi = p_scan->i_index % p_scan->parameter.bandwidth.i_count;
+ const int i_oi = (p_scan->i_index / p_scan->parameter.bandwidth.i_count) % i_offset_count;
+ const int i_fi = (p_scan->i_index / p_scan->parameter.bandwidth.i_count) / i_offset_count;
+
+ const int i_bandwidth = p_scan->parameter.bandwidth.i_min + i_bi * p_scan->parameter.bandwidth.i_step;
+ int i;
+
+ for( i = 0; i < i_band_count; i++ )
+ {
+ if( i_fi >= band[i].i_min && i_fi <= band[i].i_max )
+ break;
+ }
+ if( i >=i_band_count )
+ {
+ if( i_fi > band[i_band_count-1].i_max )
+ return VLC_EGENERIC;
+ continue;
+ }
+
+ const int i_frequency_min = band[i].i_min*i_mhz + i_bandwidth*i_mhz/2;
+ const int i_frequency_base = i_fi*i_mhz;
+
+ if( i_frequency_base >= i_frequency_min && ( i_frequency_base - i_frequency_min ) % ( i_bandwidth*i_mhz ) == 0 )
+ {
+ const int i_frequency = i_frequency_base + ( i_oi - i_offset_count/2 ) * p_scan->parameter.frequency.i_step;
+
+ if( i_frequency < p_scan->parameter.frequency.i_min ||
+ i_frequency > p_scan->parameter.frequency.i_max )
+ continue;
+
+ p_cfg->i_frequency = i_frequency;
+ p_cfg->i_bandwidth = i_bandwidth;
+
+ int i_current = 0, i_total = 0;
+ for( int i = 0; i < i_band_count; i++ )
+ {
+ const int i_frag = band[i].i_max-band[i].i_min;
+
+ if( i_fi >= band[i].i_min )
+ i_current += __MIN( i_fi - band[i].i_min, i_frag );
+ i_total += i_frag;
+ }
+
+ *pf_pos = (double)( i_current + (double)i_oi / i_offset_count ) / i_total;
+ return VLC_SUCCESS;
+ }
+ }
+}
+
+static int ScanDvbTNext( scan_t *p_scan, scan_configuration_t *p_cfg, double *pf_pos )
+{
+ if( p_scan->parameter.b_exhaustive )
+ return ScanDvbTNextExhaustive( p_scan, p_cfg, pf_pos );
+ else
+ return ScanDvbTNextFast( p_scan, p_cfg, pf_pos );
+}
+
+int scan_Next( scan_t *p_scan, scan_configuration_t *p_cfg )
+{
+ double f_position;
+ int i_ret;
+
+ if( scan_IsCancelled( p_scan ) )
+ return VLC_EGENERIC;
+
+ memset( p_cfg, 0, sizeof(*p_cfg) );
+ switch( p_scan->parameter.type )
+ {
+ case SCAN_DVB_T:
+ i_ret = ScanDvbTNext( p_scan, p_cfg, &f_position );
+ break;
+ default:
+ i_ret = VLC_EGENERIC;
+ break;
+ }
+
+ if( i_ret )
+ return i_ret;
+
+ char *psz_text;
+ int i_service = 0;
+
+ for( int i = 0; i < p_scan->i_service; i++ )
+ {
+ if( p_scan->pp_service[i]->type != SERVICE_UNKNOWN )
+ i_service++;
+ }
+
+ if( asprintf( &psz_text, _("%.1f MHz (%d services)"),
+ (double)p_cfg->i_frequency / 1000000, i_service ) >= 0 )
+ {
+ const mtime_t i_eta = f_position > 0.005 ? (mdate() - p_scan->i_time_start) * ( 1.0 / f_position - 1.0 ) : -1;
+ char psz_eta[MSTRTIME_MAX_SIZE];
+
+ if( i_eta >= 0 )
+ msg_Info( p_scan->p_obj, "Scan ETA %s | %f", secstotimestr( psz_eta, i_eta/1000000 ), f_position * 100 );
+
+ if( p_scan->i_dialog_id < 0 )
+ p_scan->i_dialog_id = intf_UserProgress( p_scan->p_obj, _("Scanning DVB-T"), psz_text, 100.0 * f_position, -1 );
+ else
+ intf_ProgressUpdate( p_scan->p_obj, p_scan->i_dialog_id, psz_text, 100 * f_position, -1 );
+ free( psz_text );
+ }
+
+ p_scan->i_index++;
+ return VLC_SUCCESS;
+}
+
+bool scan_IsCancelled( scan_t *p_scan )
+{
+ return p_scan->i_dialog_id >= 0 && intf_ProgressIsCancelled( p_scan->p_obj, p_scan->i_dialog_id );
+}
+
+static scan_service_t *ScanFindService( scan_t *p_scan, int i_service_start, int i_program )
+{
+ /* FIXME add network id */
+ for( int i = i_service_start; i < p_scan->i_service; i++ )
+ {
+ if( p_scan->pp_service[i]->i_program == i_program )
+ return p_scan->pp_service[i];
+ }
+ return NULL;
+}
+
+/* FIXME handle properly string (convert to utf8) */
+static void PATCallBack( scan_session_t *p_session, dvbpsi_pat_t *p_pat )
+{
+ vlc_object_t *p_obj = p_session->p_obj;
+
+ msg_Err( p_obj, "PATCallBack" );
+
+ /* */
+ if( p_session->p_pat && p_session->p_pat->b_current_next )
+ {
+ dvbpsi_DeletePAT( p_session->p_pat );
+ p_session->p_pat = NULL;
+ }
+ if( p_session->p_pat )
+ {
+ dvbpsi_DeletePAT( p_pat );
+ return;
+ }
+
+ dvbpsi_pat_program_t *p_program;
+
+ /* */
+ p_session->p_pat = p_pat;
+
+ /* */
+ msg_Dbg( p_obj, "new PAT ts_id=%d version=%d current_next=%d",
+ p_pat->i_ts_id, p_pat->i_version, p_pat->b_current_next );
+ for( p_program = p_pat->p_first_program; p_program != NULL; p_program = p_program->p_next )
+ {
+ msg_Dbg( p_obj, " * number=%d pid=%d", p_program->i_number, p_program->i_pid );
+ if( p_program->i_number == 0 )
+ p_session->i_nit_pid = p_program->i_pid;
+ }
+}
+static void SDTCallBack( scan_session_t *p_session, dvbpsi_sdt_t *p_sdt )
+{
+ vlc_object_t *p_obj = p_session->p_obj;
+
+ msg_Err( p_obj, "SDTCallBack" );
+
+ if( p_session->p_sdt && p_session->p_sdt->b_current_next )
+ {
+ dvbpsi_DeleteSDT( p_session->p_sdt );
+ p_session->p_sdt = NULL;
+ }
+ if( p_session->p_sdt )
+ {
+ dvbpsi_DeleteSDT( p_sdt );
+ return;
+ }
+
+ /* */
+ p_session->p_sdt = p_sdt;
+
+ /* */
+ msg_Dbg( p_obj, "new SDT ts_id=%d version=%d current_next=%d network_id=%d",
+ p_sdt->i_ts_id, p_sdt->i_version, p_sdt->b_current_next,
+ p_sdt->i_network_id );
+
+
+ dvbpsi_sdt_service_t *p_srv;
+ for( p_srv = p_sdt->p_first_service; p_srv; p_srv = p_srv->p_next )
+ {
+ dvbpsi_descriptor_t *p_dr;
+
+ msg_Dbg( p_obj, " * service id=%d eit schedule=%d present=%d running=%d free_ca=%d",
+ p_srv->i_service_id, p_srv->b_eit_schedule,
+ p_srv->b_eit_present, p_srv->i_running_status,
+ p_srv->b_free_ca );
+ for( p_dr = p_srv->p_first_descriptor; p_dr; p_dr = p_dr->p_next )
+ {
+ if( p_dr->i_tag == 0x48 )
+ {
+ dvbpsi_service_dr_t *pD = dvbpsi_DecodeServiceDr( p_dr );
+ char str2[257];
+
+ memcpy( str2, pD->i_service_name, pD->i_service_name_length );
+ str2[pD->i_service_name_length] = '\0';
+
+ msg_Dbg( p_obj, " - type=%d name=%s",
+ pD->i_service_type, str2 );
+ }
+ else
+ {
+ msg_Dbg( p_obj, " * dsc 0x%x", p_dr->i_tag );
+ }
+ }
+ }
+}
+
+static void NITCallBack( scan_session_t *p_session, dvbpsi_nit_t *p_nit )
+{
+ vlc_object_t *p_obj = p_session->p_obj;
+
+ msg_Err( p_obj, "NITCallBack" );
+ msg_Dbg( p_obj, "new NIT network_id=%d version=%d current_next=%d",
+ p_nit->i_network_id, p_nit->i_version, p_nit->b_current_next );
+
+ /* */
+ if( p_session->p_nit && p_session->p_nit->b_current_next )
+ {
+ dvbpsi_DeleteNIT( p_session->p_nit );
+ p_session->p_nit = NULL;
+ }
+ if( p_session->p_nit )
+ {
+ dvbpsi_DeleteNIT( p_nit );
+ return;
+ }
+
+ /* */
+ p_session->p_nit = p_nit;
+
+ dvbpsi_descriptor_t *p_dsc;
+ for( p_dsc = p_nit->p_first_descriptor; p_dsc != NULL; p_dsc = p_dsc->p_next )
+ {
+ if( p_dsc->i_tag == 0x40 )
+ {
+ msg_Dbg( p_obj, " * network name descriptor" );
+ char str1[257];
+
+ memcpy( str1, p_dsc->p_data, p_dsc->i_length );
+ str1[p_dsc->i_length] = '\0';
+ msg_Dbg( p_obj, " * name %s", str1 );
+ }
+ else if( p_dsc->i_tag == 0x4a )
+ {
+ msg_Dbg( p_obj, " * linkage descriptor" );
+ uint16_t i_ts_id = GetWBE( &p_dsc->p_data[0] );
+ uint16_t i_on_id = GetWBE( &p_dsc->p_data[2] );
+ uint16_t i_service_id = GetWBE( &p_dsc->p_data[4] );
+ int i_linkage_type = p_dsc->p_data[6];
+
+ msg_Dbg( p_obj, " * ts_id %d", i_ts_id );
+ msg_Dbg( p_obj, " * on_id %d", i_on_id );
+ msg_Dbg( p_obj, " * service_id %d", i_service_id );
+ msg_Dbg( p_obj, " * linkage_type %d", i_linkage_type );
+ }
+ else
+ {
+ msg_Dbg( p_obj, " * dsc 0x%x", p_dsc->i_tag );
+ }
+ }
+
+ dvbpsi_nit_ts_t *p_ts;
+ for( p_ts = p_nit->p_first_ts; p_ts != NULL; p_ts = p_ts->p_next )
+ {
+ msg_Dbg( p_obj, " * ts ts_id=0x%x original_id=0x%x", p_ts->i_ts_id, p_ts->i_orig_network_id );
+
+ uint32_t i_private_data_id = 0;
+ dvbpsi_descriptor_t *p_dsc;
+ for( p_dsc = p_ts->p_first_descriptor; p_dsc != NULL; p_dsc = p_dsc->p_next )
+ {
+ if( p_dsc->i_tag == 0x41 )
+ {
+ msg_Dbg( p_obj, " * service list descriptor" );
+ for( int i = 0; i < p_dsc->i_length/3; i++ )
+ {
+ uint16_t i_service_id = GetWBE( &p_dsc->p_data[3*i+0] );
+ uint8_t i_service_type = p_dsc->p_data[3*i+2];
+ msg_Dbg( p_obj, " * service_id=%d type=%d", i_service_id, i_service_type );
+ }
+ }
+ else if( p_dsc->i_tag == 0x5a )
+ {
+ dvbpsi_terr_deliv_sys_dr_t *p_t = dvbpsi_DecodeTerrDelivSysDr( p_dsc );
+ msg_Dbg( p_obj, " * terrestrial delivery system" );
+ msg_Dbg( p_obj, " * centre_frequency 0x%x", p_t->i_centre_frequency );
+ msg_Dbg( p_obj, " * bandwidth %d", 8 - p_t->i_bandwidth );
+ msg_Dbg( p_obj, " * constellation %d", p_t->i_constellation );
+ msg_Dbg( p_obj, " * hierarchy %d", p_t->i_hierarchy_information );
+ msg_Dbg( p_obj, " * code_rate hp %d lp %d", p_t->i_code_rate_hp_stream, p_t->i_code_rate_lp_stream );
+ msg_Dbg( p_obj, " * guard_interval %d", p_t->i_guard_interval );
+ msg_Dbg( p_obj, " * transmission_mode %d", p_t->i_transmission_mode );
+ msg_Dbg( p_obj, " * other_frequency_flag %d", p_t->i_other_frequency_flag );
+ }
+ else if( p_dsc->i_tag == 0x5f )
+ {
+ msg_Dbg( p_obj, " * private data specifier descriptor" );
+ i_private_data_id = GetDWBE( &p_dsc->p_data[0] );
+ msg_Dbg( p_obj, " * value 0x%8.8x", i_private_data_id );
+ }
+ else if( i_private_data_id == 0x28 && p_dsc->i_tag == 0x83 )
+ {
+ msg_Dbg( p_obj, " * logical channel descriptor (EICTA)" );
+ for( int i = 0; i < p_dsc->i_length/4; i++ )
+ {
+ uint16_t i_service_id = GetWBE( &p_dsc->p_data[4*i+0] );
+ int i_channel_number = GetWBE( &p_dsc->p_data[4*i+2] ) & 0x3ff;
+ msg_Dbg( p_obj, " * service_id=%d channel_number=%d", i_service_id, i_channel_number );
+ }
+
+ }
+ else
+ {
+ msg_Warn( p_obj, " * dsc 0x%x", p_dsc->i_tag );
+ }
+ }
+ }
+ //dvbpsi_DeleteNIT( p_nit );
+}
+
+static void PSINewTableCallBack( scan_session_t *p_session, dvbpsi_handle h, uint8_t i_table_id, uint16_t i_extension )
+{
+ if( i_table_id == 0x42 )
+ dvbpsi_AttachSDT( h, i_table_id, i_extension, (dvbpsi_sdt_callback)SDTCallBack, p_session );
+ else if( i_table_id == 0x40 )
+ dvbpsi_AttachNIT( h, i_table_id, i_extension, (dvbpsi_nit_callback)NITCallBack, p_session );
+}
+
+
+int scan_session_Init( vlc_object_t *p_obj, scan_session_t *p_session, const scan_configuration_t *p_cfg )
+{
+ /* */
+ memset( p_session, 0, sizeof(*p_session) );
+ p_session->p_obj = p_obj;
+ p_session->cfg = *p_cfg;
+ p_session->i_snr = -1;
+ p_session->pat = NULL;
+ p_session->p_pat = NULL;
+ p_session->i_nit_pid = -1;
+ p_session->sdt = NULL;
+ p_session->p_sdt = NULL;
+ p_session->nit = NULL;
+ p_session->p_nit = NULL;
+
+ return VLC_SUCCESS;
+}
+
+void scan_session_Clean( scan_t *p_scan, scan_session_t *p_session )
+{
+ const int i_service_start = p_scan->i_service;
+
+ dvbpsi_pat_t *p_pat = p_session->p_pat;
+ dvbpsi_sdt_t *p_sdt = p_session->p_sdt;
+ dvbpsi_nit_t *p_nit = p_session->p_nit;
+
+ if( p_pat )
+ {
+ /* Parse PAT */
+ dvbpsi_pat_program_t *p_program;
+ for( p_program = p_pat->p_first_program; p_program != NULL; p_program = p_program->p_next )
+ {
+ if( p_program->i_number == 0 ) /* NIT */
+ continue;
+
+ scan_service_t *s = scan_service_New( p_program->i_number, &p_session->cfg );
+ TAB_APPEND( p_scan->i_service, p_scan->pp_service, s );
+ }
+ }
+ /* Parse SDT */
+ if( p_pat && p_sdt )
+ {
+ dvbpsi_sdt_service_t *p_srv;
+ for( p_srv = p_sdt->p_first_service; p_srv; p_srv = p_srv->p_next )
+ {
+ scan_service_t *s = ScanFindService( p_scan, i_service_start, p_srv->i_service_id );
+ dvbpsi_descriptor_t *p_dr;
+
+ if( s )
+ s->b_crypted = p_srv->b_free_ca;
+
+ for( p_dr = p_srv->p_first_descriptor; p_dr; p_dr = p_dr->p_next )
+ {
+ if( p_dr->i_tag == 0x48 )
+ {
+ dvbpsi_service_dr_t *pD = dvbpsi_DecodeServiceDr( p_dr );
+
+ if( s )
+ {
+ if( !s->psz_name )
+ s->psz_name = dvbsi_to_utf8( pD->i_service_name, pD->i_service_name_length );
+
+ if( s->type == SERVICE_UNKNOWN )
+ {
+ switch( pD->i_service_type )
+ {
+ case 0x01: s->type = SERVICE_DIGITAL_TELEVISION; break;
+ case 0x02: s->type = SERVICE_DIGITAL_RADIO; break;
+ case 0x16: s->type = SERVICE_DIGITAL_TELEVISION_AC_SD; break;
+ case 0x19: s->type = SERVICE_DIGITAL_TELEVISION_AC_HD; break;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ /* Parse NIT */
+ if( p_pat && p_nit )
+ {
+ dvbpsi_nit_ts_t *p_ts;
+ for( p_ts = p_nit->p_first_ts; p_ts != NULL; p_ts = p_ts->p_next )
+ {
+ uint32_t i_private_data_id = 0;
+ dvbpsi_descriptor_t *p_dsc;
+
+ if( p_ts->i_orig_network_id != p_nit->i_network_id || p_ts->i_ts_id != p_pat->i_ts_id )
+ continue;
+
+ for( p_dsc = p_ts->p_first_descriptor; p_dsc != NULL; p_dsc = p_dsc->p_next )
+ {
+ if( p_dsc->i_tag == 0x5f )
+ {
+ i_private_data_id = GetDWBE( &p_dsc->p_data[0] );
+ }
+ else if( i_private_data_id == 0x28 && p_dsc->i_tag == 0x83 )
+ {
+ for( int i = 0; i < p_dsc->i_length/4; i++ )
+ {
+ uint16_t i_service_id = GetWBE( &p_dsc->p_data[4*i+0] );
+ int i_channel_number = GetWBE( &p_dsc->p_data[4*i+2] ) & 0x3ff;
+
+ scan_service_t *s = ScanFindService( p_scan, i_service_start, i_service_id );
+ if( s && s->i_channel < 0 )
+ s->i_channel = i_channel_number;
+ }
+ }
+ }
+ }
+ }
+
+ /* */
+ for( int i = i_service_start; i < p_scan->i_service; i++ )
+ {
+ scan_service_t *p_srv = p_scan->pp_service[i];
+
+ p_srv->i_snr = p_session->i_snr;
+ if( p_nit )
+ {
+ p_srv->i_network_id = p_nit->i_network_id;
+ p_srv->i_nit_version = p_nit->i_version;
+ }
+ if( p_sdt )
+ p_srv->i_sdt_version = p_sdt->i_version;
+ }
+
+
+ /* */
+ if( p_session->pat )
+ dvbpsi_DetachPAT( p_session->pat );
+ if( p_session->p_pat )
+ dvbpsi_DeletePAT( p_session->p_pat );
+
+ if( p_session->sdt )
+ dvbpsi_DetachDemux( p_session->sdt );
+ if( p_session->p_sdt )
+ dvbpsi_DeleteSDT( p_session->p_sdt );
+ if( p_session->nit )
+ dvbpsi_DetachDemux( p_session->nit );
+ if( p_session->p_nit )
+ dvbpsi_DeleteNIT( p_session->p_nit );
+}
+
+static int ScanServiceCmp( const void *a, const void *b )
+{
+ scan_service_t *sa = *(scan_service_t**)a;
+ scan_service_t *sb = *(scan_service_t**)b;
+
+ if( sa->i_channel == sb->i_channel )
+ {
+ if( sa->psz_name && sb->psz_name )
+ return strcmp( sa->psz_name, sb->psz_name );
+ return 0;
+ }
+ if( sa->i_channel == -1 )
+ return 1;
+ else if( sb->i_channel == -1 )
+ return -1;
+
+ if( sa->i_channel < sb->i_channel )
+ return -1;
+ else if( sa->i_channel > sb->i_channel )
+ return 1;
+ return 0;
+}
+
+static block_t *BlockString( const char *psz )
+{
+ block_t *p = block_Alloc( strlen(psz) );
+ if( p )
+ memcpy( p->p_buffer, psz, p->i_buffer );
+ return p;
+}
+
+block_t *scan_GetM3U( scan_t *p_scan )
+{
+ vlc_object_t *p_obj = p_scan->p_obj;
+ block_t *p_playlist = NULL;
+
+ if( p_scan->i_service <= 0 )
+ return NULL;
+
+ /* */
+ qsort( p_scan->pp_service, p_scan->i_service, sizeof(scan_service_t*), ScanServiceCmp );
+
+ /* */
+ p_playlist = BlockString( "#EXTM3U\n\n" );/* */
+
+ for( int i = 0; i < p_scan->i_service; i++ )
+ {
+ scan_service_t *s = p_scan->pp_service[i];
+
+ if( s->type == SERVICE_UNKNOWN )
+ {
+ /* We should only select service that have been described by SDT */
+ msg_Dbg( p_obj, "scan_GetM3U: ignoring service number %d", s->i_program );
+ continue;
+ }
+
+ const char *psz_type;
+ switch( s->type )
+ {
+ case SERVICE_DIGITAL_TELEVISION: psz_type = "Digital television"; break;
+ case SERVICE_DIGITAL_TELEVISION_AC_SD: psz_type = "Digital television advanced codec SD"; break;
+ case SERVICE_DIGITAL_TELEVISION_AC_HD: psz_type = "Digital television advanced codec HD"; break;
+ case SERVICE_DIGITAL_RADIO: psz_type = "Digital radio"; break;
+ default:
+ psz_type = "Unknown";
+ break;
+ }
+ msg_Warn( p_obj, "scan_GetM3U: service number %d type '%s' name '%s' channel %d cypted=%d| network_id %d (nit:%d sdt:%d)| f=%d bw=%d snr=%d",
+ s->i_program, psz_type, s->psz_name, s->i_channel, s->b_crypted,
+ s->i_network_id, s->i_nit_version, s->i_sdt_version,
+ s->cfg.i_frequency, s->cfg.i_bandwidth, s->i_snr );
+
+ char *psz;
+ if( asprintf( &psz, "#EXTINF:,,%s\n"
+ "#EXTVLCOPT:program=%d\n"
+ "dvb://frequency=%d:bandwidth=%d\n"
+ "\n",
+ s->psz_name && * s->psz_name ? s->psz_name : "Unknown",
+ s->i_program,
+ s->cfg.i_frequency, s->cfg.i_bandwidth ) < 0 )
+ psz = NULL;
+ if( psz )
+ {
+ block_t *p_block = BlockString( psz );
+ if( p_block )
+ block_ChainAppend( &p_playlist, p_block );
+ }
+ }
+
+ return p_playlist ? block_ChainGather( p_playlist ) : NULL;
+}
+
+bool scan_session_Push( scan_session_t *p_scan, block_t *p_block )
+{
+ if( p_block->i_buffer < 188 || p_block->p_buffer[0] != 0x47 )
+ {
+ block_Release( p_block );
+ return false;
+ }
+
+ /* */
+ const int i_pid = ( (p_block->p_buffer[1]&0x1f)<<8) | p_block->p_buffer[2];
+ if( i_pid == 0x00 )
+ {
+ if( !p_scan->pat )
+ p_scan->pat = dvbpsi_AttachPAT( (dvbpsi_pat_callback)PATCallBack, p_scan );
+
+ if( p_scan->pat )
+ dvbpsi_PushPacket( p_scan->pat, p_block->p_buffer );
+ }
+ else if( i_pid == 0x11 )
+ {
+ if( !p_scan->sdt )
+ p_scan->sdt = dvbpsi_AttachDemux( (dvbpsi_demux_new_cb_t)PSINewTableCallBack, p_scan );
+
+ if( p_scan->sdt )
+ dvbpsi_PushPacket( p_scan->sdt, p_block->p_buffer );
+ }
+ else if( i_pid == p_scan->i_nit_pid )
+ {
+ if( !p_scan->nit )
+ p_scan->nit = dvbpsi_AttachDemux( (dvbpsi_demux_new_cb_t)PSINewTableCallBack, p_scan );
+
+ if( p_scan->nit )
+ dvbpsi_PushPacket( p_scan->nit, p_block->p_buffer );
+ }
+
+ block_Release( p_block );
+
+ return p_scan->p_pat && p_scan->p_sdt && p_scan->p_nit;
+}
+
+void scan_service_SetSNR( scan_session_t *p_session, int i_snr )
+{
+ p_session->i_snr = i_snr;
+}
+
projects / vlc / commitdiff