source: ipk/source/epg_crossepg/var/crossepg/scripts/example_script.py@ 17841

Last change on this file since 17841 was 7451, checked in by BPanther, 15 years ago

[ipk] - copy source->source.sh4
File size: 4.4 KB
Line 
1#!/usr/bin/python
2# Author: Skaman
3# Date: October 2010
4
5from crossepg import *
6
7def dump_title(title):
8 log_add("----------EVENT----------")
9 log_add("ID: %d" % title.event_id)
10 log_add("MJD: %d" % title.mjd)
11 log_add("START TIME: %d" % title.start_time)
12 log_add("DURATION: %d" % title.length)
13 log_add("GENRE ID: %d" % title.genre_id)
14 log_add("REVISION: %d" % title.revision)
15 log_add("ISO639: %c%c%c" % (title.iso_639_1, title.iso_639_2, title.iso_639_3))
16 log_add("IS UTF8: %d" % IS_UTF8(title.flags))
17 log_add("DESCRIPTION_CRC: 0x%x" % title.description_crc)
18 log_add("DESCRIPTION_SEEK: %d" % title.description_seek)
19 log_add("DESCRIPTION LENTH: %d" % title.description_length)
20 log_add("DESCRIPTION: %s" % epgdb_read_description(title))
21 log_add("LONG DESCRIPTION CRC: 0x%x" % title.long_description_crc)
22 log_add("LONG DESCRIPTION SEEK: %d" % title.long_description_seek)
23 log_add("LONG DESCRIPTION LENTH: %d" % title.long_description_length)
24 log_add("LONG DESCRIPTION: %s" % epgdb_read_long_description(title))
25
26def main():
27 # get dbroot path
28 dbroot = epgdb_get_dbroot()
29
30 # open epgdb
31 if epgdb_open(dbroot):
32 log_add("EPGDB opened (root=%s)" % dbroot);
33 else:
34 log_add("Error opening EPGDB");
35 epgdb_close();
36 return
37
38 # load indexes and hashes in memory
39 epgdb_load();
40
41 ####################
42 # WRITE OPERATIONS #
43 ####################
44
45 # add an event into db
46 log_add("TEST: add an event into db")
47 nid = 0x01 # original network id
48 tsid = 0x01 # transport service id
49 sid = 0x01 # service id
50 # the 3 values above identify the channel
51
52 channel = epgdb_channels_add(nid, tsid, sid) # add channel into db and get a reference to the structure
53 # doesn't matter if the channel already exist... epgdb do all the work
54
55 title = epgdb_title_alloc() # alloc title structure in memory
56 title.event_id = 1 # event id.. it's unique inside a channel
57 title.start_time = 1293840000 # 1/1/2011 timestamp.. it's always referred to gmt+0 without daylight saving
58 title.mjd = epgdb_calculate_mjd(title.start_time) # Modified Julian Date.. if you don't know it you can calulate it with epgdb_calculate_mjd()
59 title.length = 600 # ten minutes.. event duration in seconds
60 title.iso_639_1 = ord('e') # ISO 639 language code.. http://en.wikipedia.org/wiki/ISO_639
61 title.iso_639_2 = ord('n')
62 title.iso_639_3 = ord('g')
63
64 title.flags = SET_UTF8(title.flags) # necessary only if description and/or long description have utf-8 charset
65
66 title = epgdb_titles_add(channel, title) # add event in epgdb and return back a reference to the structure
67 # remember to use always the new structure reference
68 # if the event already exist epgdb update it and automatically destroy the new structure
69
70 # now the event structure is already in epgdb
71 # but we still need to add descriptions
72 epgdb_titles_set_description (title, "our custom event short description");
73 epgdb_titles_set_long_description (title, "our custom event long description");
74
75 ###################
76 # READ OPERATIONS #
77 ###################
78
79 # walk inside channels and events
80 log_add("TEST: walk inside channels and events")
81 channel_count = 0
82 channel = epgdb_channels_get_first();
83 while channel != None:
84 log_add("---------CHANNEL---------")
85 log_add("NID: 0x%x" % channel.nid)
86 log_add("TSID: 0x%x" % channel.tsid)
87 log_add("SID: 0x%x" % channel.sid)
88 title_count = 0
89 title = channel.title_first;
90 while title != None:
91 dump_title(title)
92 title = title.next
93 title_count += 1
94 if title_count == 2: # it's only a test so we halt the loop after 2 titles
95 break
96
97 channel = channel.next
98 channel_count += 1
99 if channel_count == 3: # it's only a test so we halt the loop after 3 channels
100 break
101
102 # get a channel by nid, tsid, sid
103 log_add("TEST: get a channel by nid, tsid, sid")
104 channel = epgdb_channels_get_by_freq(nid, tsid, sid);
105 if channel:
106 # get an event by channel and timestamp
107 log_add("TEST: get an event by channel and timestamp")
108 title = epgdb_titles_get_by_time (channel, 1293840000); # exist also the api epgdb_titles_get_by_id_and_mjd(channel, event_id, mjd_time)
109 if title:
110 dump_title(title)
111 else:
112 log_add("Title not found")
113 else:
114 log_add("Channel not found")
115
116 # saving data
117 # it's necessary only if you add new events
118 if epgdb_save(None):
119 log_add("Data saved");
120 else:
121 log_add("Error saving data");
122
123 # close epgdb and clean memory
124 epgdb_close()
125 epgdb_clean()
126 log_add("EPGDB closed");
127
128main()
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