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Epgdb » History » Revision 4

Revision 3 (Dave Chapman, 2012-11-13 00:18) → Revision 4/23 (Dave Chapman, 2012-11-13 00:20)

h1. EPG database structure 

 This page is a work-in-progress to document the internal EPG database structure in tvh. 

 {{toc}} 

 h2. Episode object - epg_episode_t 

 |\3=. | |\4=.Populated from| 
 |_.Field|_.Type|_.Description| |_.DVB EIT|_.OpenTV|_.XML TV|_.PyEPG| 
 |id|uint32_t|Internal ID| | | | | | 
 |uri|char*|Unique ID (from grabber)| | | | | | 
 |title|lang_str_t*|Title| | | | | | 
 |subtitle|lang_str_t*|Sub-title| | | | | | 
 |summary|lang_str_t*|Summary| | | | | | 
 |description|lang_str_t*|An extended description| | | | | | 
 |image|char*|URL of episode image| | | | | | 
 |genre|epg_genre_list_t|Episode genre(s)| | | | | | 
 |epnum|epg_episode_num_t|Episode numbering| | | | | | 
 |is_bw|uint8_t|Is black and white| | | | | | 
 |star_rating|uint8_t|Star rating| | | | | | 
 |age_rating|uint8_t|Age certificate| | | | | | 
 |first_aired|time_t|Original airdate| | | | | | 
 |brand|epg_brand_t*|(Grand-)Parent brand| | | | | | 
 |season|epg_season_t*|Parent season| | | | | | 
 |broadcasts|epg_broadcast_list_t|Broadcast list| | | | | | 

 h3. Episode numbering object - epg_episode_num_t: 

 This is for some back-compat and also to allow episode information to be "collated" into easy to use object 

 |\3=. | |\4=.Populated from| 
 |_.Field|_.Type|_.Description| |_.DVB EIT|_.OpenTV|_.XML TV|_.PyEPG| 
 |s_num|uint16_t|Series number| | | | | | 
 |s_cnt|uint16_t|Series count| | | | | | 
 |e_num|uint16_t|Episode number| | | | | | 
 |e_cnt|uint16_t|Episode count| | | | | | 
 |p_num|uint16_t|Part number| | | | | | 
 |p_cnt|uint16_t|Part count| | | | | | 
 |text|char*|Arbitary text description of episode num| | | | | | 


 h2. Broadcast object - epg_broadcast_t 

 This object contains the details of a specific airing (channel & time) of an episode. 

 |\3=. | |\4=.Populated from| 
 |_.Field|_.Type|_.Description| |_.DVB EIT|_.OpenTV|_.XML TV|_.PyEPG| 
 |id|uint32_t|Internal ID| | | | | | 
 |uri|char*|Unique ID (from grabber)| | | | | | 
 |dvb_eit|uint16_t|DVB Event ID| | | | | | 
 |start|time_t|Start time (UTC)| | | | | | 
 |stop|time_t|Stop time (UTC)| | | | | | 
 |is_widescreen|uint8_t|Is widescreen| | | | | | 
 |is_hd|uint8_t|Is HD| | | | | | 
 |lines|uint16_t|Lines in image (quality)| | | | | | 
 |aspect|uint16_t|Aspect ratio (*100)| | | | | | 
 |is_deafsigned|uint8_t|In screen signing| | | | | | 
 |is_subtitled|uint8_t|Teletext subtitles| | | | | | 
 |is_new|uint8_t|New series / film premiere| | | | | | 
 |is_repeat|uint8_t|Repeat screening| | | | | | 
 |summary|lang_str_t*|Summary| |summary|lang_str_t*|Summary text| | | | | | 
 |description|lang_str_t*|An extended description| |description|lang_str_t*|Description| | | | | | 
 |episode|epg_episode_t*|Link to tvheadend episode object| | | | | | 
 |serieslink|epg_serieslink_t*|SeriesLink| | | | | | 
 |channel|struct channel*|Channel being broadcast on| | | | | |