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-rw-r--r--doc/muxers.texi13
1 files changed, 10 insertions, 3 deletions
diff --git a/doc/muxers.texi b/doc/muxers.texi
index 2651f97..60daf08 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -588,11 +588,17 @@ A list file with the suffix @code{".m3u8"} will auto-select this format.
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:
@@ -614,7 +620,8 @@ the specified time and the time set by @var{force_key_frames}.
@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
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