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Merge pull request #2100 from x15sr71/fix/dvb-eit-bcd-start-time

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[FIX]: Properly decode DVB EIT start time BCD field in XMLTV output
This commit is contained in:
Carlos Fernandez Sanz
2026-02-07 13:25:03 -08:00
committed by GitHub
parent 9762223105 f920c16a53
commit 10288243b9
2 changed files with 28 additions and 1 deletions
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1
docs/CHANGES.TXT
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@@ -1,5 +1,6 @@
0.96.6 (unreleased)
-------------------
- Fix: DVB EIT start time BCD decoding in XMLTV output causing invalid timestamps (#1835)
- New: Add Snap packaging support with Snapcraft configuration and GitHub Actions CI workflow.
- Fix: Clear status line output on Linux/WSL to prevent text artifacts (#2017)
- Fix: Prevent infinite loop on truncated MKV files

28
src/lib_ccx/ts_tables_epg.c
View File

@@ -136,6 +136,7 @@ void EPG_DVB_calc_start_time(struct EPG_event *event, uint64_t time)
if (mjd > 0)
{
long y, m, d, k;
struct tm timeinfo = {0};
// algo: ETSI EN 300 468 - ANNEX C
y = (long)((mjd - 15078.2) / 365.25);
@@ -145,7 +146,32 @@ void EPG_DVB_calc_start_time(struct EPG_event *event, uint64_t time)
y = y + k + 1900;
m = m - 1 - k * 12;
snprintf(event->start_time_string, sizeof(event->start_time_string), "%02ld%02ld%02ld%06" PRIu64 "+0000", y, m, d, time & 0xffffff);
timeinfo.tm_year = y - 1900;
timeinfo.tm_mon = m - 1;
timeinfo.tm_mday = d;
// Decode BCD time (lower 24 bits: HHMMSS)
uint32_t bcd = (uint32_t)(time & 0xFFFFFF);
timeinfo.tm_sec = (bcd & 0x0f) + (10 * ((bcd & 0xf0) >> 4));
timeinfo.tm_min = ((bcd & 0x0f00) >> 8) + (10 * ((bcd & 0xf000) >> 12));
timeinfo.tm_hour = ((bcd & 0x0f0000) >> 16) + (10 * ((bcd & 0xf00000) >> 20));
timeinfo.tm_isdst = -1;
mktime(&timeinfo);
snprintf(event->start_time_string,
sizeof(event->start_time_string),
"%04d%02d%02d%02d%02d%02d +0000",
timeinfo.tm_year + 1900,
timeinfo.tm_mon + 1,
timeinfo.tm_mday,
timeinfo.tm_hour,
timeinfo.tm_min,
timeinfo.tm_sec);
}
}