avformat/nutenc: add mode that omits the index

When the index is not written, several data tables become unneeded,
reducing memory and cpu requirements.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 2 insertions, 0 deletions

diff --git a/doc/muxers.texi b/doc/muxers.texi
index c1cf18607b..ce9d1108c7 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -717,6 +717,8 @@ Change the syncpoint usage in nut:
 @item @var{timestamped} extend the syncpoint with a wallclock field.
 @end table
 The @var{none} and @var{timestamped} flags are experimental.
+@item -write_index @var{bool}
+Write index at the end, the default is to write an index.
 @end table
 
 @example