View Bug Details

IDProjectCategoryView StatusLast Update
0000458DCP-o-maticFeaturespublic2021-02-18 19:22
Reportercarl Assigned Tocarl  
Status resolvedResolutionfixed 
Summary0000458: Warn with subtitles of less than 1s duration

Also, I have a suggest: I discovered that some Servwers (like dolby)
don't play subtitle if some subtitles is less than 1 second.
The server out this error:
"Found subtitles file with Time out less than one second from time in
for subtitles (...)"
I think that should be useful add a check for subtitles (without
correction) with warnong in case, what do you think?

TagsNo tags attached.
Estimated weeks required
Estimated work requiredTiny


related to 0001798 resolvedcarl Comply with (or at least warn about deviations from) SMPTE Bv2.1 application profile 



2015-01-20 04:42

developer   ~0000455

Other subtitle rules that can be useful:
-No less than 1 second
-Timecode overlapping, including duplicate subtitles
-No less than 3 frames of separation between subtitles


2015-09-06 00:41

administrator   ~0000848

May be hard in the case of FFmpeg content with text subtitles as scanning the file may take a long time.


2015-09-06 00:52

developer   ~0000849

It could be a set of hints/warnings:
-For srt file, shown after importing
-For FFmpeg content, at worst is shown after codification, maybe with other alerts in the future (high bitrate, letterboxed image, non compliant CPL name, ...)
-For FFmpeg content, make the check optional, it can include sound analysis (with volume correction proposal), subtitles, cropping proposal, low resolution, other image checking.


2021-02-18 19:22

administrator   ~0004128

There's a hint now if a subtitle is shorted than 15 frames (per Bv2.1).

Bug History

Date Modified Username Field Change
2015-01-15 10:34 carl New Bug
2015-01-20 04:42 manuelac Note Added: 0000455
2015-01-20 09:51 carl Status new => acknowledged
2015-01-20 09:51 carl Target Version => 2.1.0
2015-06-03 15:33 carl Target Version 2.1.0 => 2.x
2015-06-12 12:20 carl Severity minor => feature
2015-06-12 13:55 carl Estimated work required => Tiny
2015-09-06 00:41 carl Note Added: 0000848
2015-09-06 00:52 manuelac Note Added: 0000849
2020-12-15 23:59 carl Relationship added related to 0001798
2021-02-18 19:22 carl Assigned To => carl
2021-02-18 19:22 carl Status acknowledged => resolved
2021-02-18 19:22 carl Resolution open => fixed
2021-02-18 19:22 carl Note Added: 0004128