@item segment_format @var{format}
Override the inner container format, by default it is guessed by the filename
extension.
+
@item segment_list @var{name}
Generate also a listfile named @var{name}. If not specified no
listfile is generated.
+
@item segment_list_flags @var{flags}
Set flags affecting the segment list generation.
Default value is @code{cache}.
@item segment_list_size @var{size}
-Overwrite the listfile once it reaches @var{size} entries. If 0
-the listfile is never overwritten. Default value is 0.
+Update the list file so that it contains at most the last @var{size}
+segments. If 0 the list file will contain all the segments. Default
+value is 0.
+
@item segment_list type @var{type}
Specify the format for the segment list file.
@end table
If not specified the type is guessed from the list file name suffix.
+
@item segment_time @var{time}
-Set segment duration to @var{time}. Default value is "2".
+Set segment duration to @var{time}, the value must be a duration
+specification. Default value is "2". See also the
+@option{segment_times} option.
+
+Note that splitting may not be accurate, unless you force the
+reference stream key-frames at the given time. See the introductory
+notice and the examples below.
+
@item segment_time_delta @var{delta}
Specify the accuracy time when selecting the start time for a
-segment. Default value is "0".
+segment, expressed as a duration specification. Default value is "0".
When delta is specified a key-frame will start a new segment if its
PTS satisfies the relation:
@item segment_times @var{times}
Specify a list of split points. @var{times} contains a list of comma
-separated duration specifications, in increasing order.
+separated duration specifications, in increasing order. See also
+the @option{segment_time} option.
@item segment_frames @var{frames}
Specify a list of split video frame numbers. @var{frames} contains a