#5825: Vobsub subtitles won't overlay with some MKV
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Reporter: edumj | Owner:
Type: defect | Status: closed
Priority: important | Component: avcodec
Version: git-master | Resolution: fixed
Keywords: dvdsub | Blocked By:
regression | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 0 |
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Comment (by edumj):
Sorry, but I can't figure out how to use scale2ref.
This example from [https://ffmpeg.org/ffmpeg-filters.html#scale2ref here]:
{{{
• Scale a subtitle stream to match the main video in size before
overlaying
'scale2ref[b][a];[a][b]overlay'
}}}
doesn't work.
I don't understand how to do something like this with scale2ref:
{{{
-filter_complex "[0:v][0:s:0]overlay[out]" -map "[out]"
}}}
The closest I've done is this:
{{{
-filter_complex "[subteees]scale2ref[0:s:0][0:v];[0:v][0:s:0]overlay[out]"
-map "[out]"
}}}
But I don't know why it works with some names like "sub", "subs",
"subteees", etc, but not with "ein" for example. But video is very
pixelated, and runs at 1000 fps!!
or with one example I found like this:
{{{
-filter_complex "[0:s:0][0:v]scale2ref[subs][0:v];[0:v][subs]overlay[out]"
-map "[out]"
}}}
But doesn't even work.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5825#comment:17>
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