[FFmpeg-trac] #3334(undetermined:reopened): Escaping and quoting not working with subtitles video filter
FFmpeg
trac at avcodec.org
Mon Jan 20 22:07:14 CET 2014
#3334: Escaping and quoting not working with subtitles video filter
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Reporter: ramitbhalla | Owner:
Type: defect | Status: reopened
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by ramitbhalla):
Okay taking a comment from another user (@james) below, the issue is that
the documentation is incorrect. Each special character needs to be
escapted within the quotes and then each escape needs to be reescaped!
This is really silly but either way either the documentation needs to be
updated or ffmpeg needs to be fixed.
Sorry to invalidate everyone's previous work here but this problem is is
the fault of ffmpeg and libavfilter's escaping hell!
Windows correctly passes your command line to ffmpeg. The problem comes
when ffmpeg tries to parse the filename. ':' separates options
for filters so you need to escape that. '\' (backslash) in the filename
also need to be escaped. ffmpeg's escape character is '\' (backslash).
This means that the filename for the subtitle filter needs to be, with
the quotes:
{{{
"D\\:\\\\MCEBuddy\\\\MCEBuddy
2.x\\\\MCEBuddy.ServiceCMD\\\\bin\\\\x86\\\\Debug\\\\working0\\\\HD
Small\\\'.srt"
}}}
And the full command line:
{{{
ffmpeg.exe -i "D:\MCEBuddy\MCEBuddy
2.x\MCEBuddy.ServiceCMD\bin\x86\Debug\working0\HD Small'.ts" -vf
subtitles="D\\:\\\\MCEBuddy\\\\MCEBuddy
2.x\\\\MCEBuddy.ServiceCMD\\\\bin\\\\x86\\\\Debug\\\\working0\\\\HD
Small\\\'.srt" -vcodec mpeg4 -b 1400k -acodec copy test.ts -y
}}}
MAkes me wonder - are there any more characters to be escaped by beyond
the three given in the documentation \ and ' (: isn't event mention and
needs to be escaped)
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3334#comment:7>
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