Channelscan dtv multiplex table
From MythTV Official Wiki
Note: The correct title of this article is channelscan_dtv_multiplex table. It appears incorrectly here due to technical restrictions.
The channelscan_dtv_multiplex table contains the information about the multiplex streams of previous channel scans. It is referenced by the channelscan_channel table and simplifies re-scanning for channels if the capture card is removed and re-added.
This table is mostly similar to the dtv_multiplex table.
Table Description
| Field name | Type | Null | Key | Default | Extras | Description |
|---|---|---|---|---|---|---|
| transportid | int(6) unsigned | PRI | NULL | auto_increment | unique ID to reference this row | |
| scanid | int(3) unsigned | NULL | REFERENCES channelscan(scanid) | the scan, on which this channel was found | ||
| mplexid | smallint(6) unsigned | NULL | the multiplex, which is transmitted on that frequency | |||
| frequency | bigint(12) unsigned | NULL | tuning frequency | |||
| inversion | char(1) | a | 'a'=auto, ... | |||
| symbolrate | bigint(12) unsigned | 0 | rate of symbols per second, e.g. DVB-C: 6.900.000 | |||
| fec | varchar(10) | auto | FEC: 'none', 1/2, 2/3, 3/4 | |||
| polarity | char(1) | DVB-S: horizontal or vertical | ||||
| hp_code_rate | varchar(10) | auto | ||||
| mod_sys | varchar(10) | NULL | NULL | |||
| rolloff | varchar(4) | NULL | NULL | |||
| lp_code_rate | varchar(10) | auto | ||||
| modulation | varchar(10) | auto | DVB-C:'qam_64','qam_128','qam_256' | |||
| transmission_mode | char(1) | a | 'a'=auto | |||
| guard_interval | varchar(10) | auto | ||||
| hierarchy | varchar(10) | auto | ||||
| bandwidth | char(1) | a | 'a'=auto | |||
| sistandard | varchar(10) | NULL | 'dvb', ... | |||
| tuner_type | smallint(2) unsigned | NULL | ||||
| default_authority | varchar(32) |
