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doc/muxers.texi: Don't use confusing variable name 

reserve_index_space is a size, not an index.
Also refer to the variable in the description.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Andreas Rheinhardt 2024-04-13 00:10:49 +02:00
parent 1f265aa91d
commit f48987f609
1 changed files with 2 additions and 2 deletions
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@ -2816,14 +2816,14 @@ ffmpeg -i sample_left_right_clip.mpg -an -c:v libvpx -metadata stereo_mode=left_
@subsection Options
@table @option
@item reserve_index_space @var{index}
@item reserve_index_space @var{size}
By default, this muxer writes the index for seeking (called cues in Matroska
terms) at the end of the file, because it cannot know in advance how much space
to leave for the index at the beginning of the file. However for some use cases
-- e.g. streaming where seeking is possible but slow -- it is useful to put the
index at the beginning of the file.
If this option is set to a non-zero value, the muxer will reserve a given amount
If this option is set to a non-zero value, the muxer will reserve @var{size} bytes
of space in the file header and then try to write the cues there when the muxing
finishes. If the reserved space does not suffice, no Cues will be written, the
file will be finalized and writing the trailer will return an error.