#9002: subtitles filter fails to display all ASS subtitles
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Reporter: aphysically | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug: For some files it seems ffmpeg's subtitles filter
fails to display all the ASS subtitles that mpv displays. libass version
is 0.15.0
How to reproduce: Download testfile (2.1 MB)
[https://gably.net/testcase/demo.mkv]
Hardsub the subtitles in the file with the subtitles filter as follows:
{{{
#!/bin/bash
rm -f log.txt
ffmpeg -loglevel debug -i demo.mkv -vf subtitles=demo.mkv -c:v libx264
-b:v 600k -c:a libopus -b:a 96k -map 0:v -map 0:a -y hardsubdemo.mkv
>>log.txt 2>&1
}}}
Observe the subtitles where the leaf is talking aren't hardsubbed into
`hardsubdemo.mkv`, but the line at the end is hardsubbed fine. Both
subtitle lines can be observed by viewing the original file with mpv.
I will attach log at `-loglevel debug` that shows build information and
output.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9002>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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