[FFmpeg-trac] #2327(undetermined:new): accept "chapters" as segment_times
FFmpeg
trac at avcodec.org
Tue Mar 5 08:02:05 CET 2013
#2327: accept "chapters" as segment_times
-------------------------------------+-------------------------------------
Reporter: dericed | Owner:
Type: | Status: new
enhancement | Component:
Priority: wish | undetermined
Version: git- | Keywords:
master | segment,chapters
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
Summary of the bug:
FFmpeg adds recent support for "chapters" within -force-key-frames.
At: http://ffmpeg.org/ffmpeg.html
{{{
If one of the times is "chapters[delta]", it is expanded into the time of
the beginning of all chapters in the file, shifted by delta, expressed as
a time in seconds. This option can be useful to ensure that a seek point
is present at a chapter mark or any other designated place in the output
file.
}}}
Could "chapters" be similarly supported in -segment_times, so that this
would be feasible (segment input based on embedded chapters):
{{{
ffmpeg -i file_with_chapters.mov -map 0 -c:v libx264 -c:a libfaac
-force_key_frames chapters-0.1 -f segment -segment_list tout.csv
-segment_times chapters-0.1 chaptered_%03d.mp4
}}}
Currently to do the same the user must parse out the chapter start values
and do this:
{{{
ffmpeg -i /Users/davidrice/SoundieF.mpeg -map 0 -c:v libx264 -c:a libfaac
-force_key_frames chapters-0.1 -f segment -segment_list tout.csv
-segment_times 10,20,30 chaptered_%03d.mp4
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2327>
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