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Diffstat (limited to 'DOCS')
-rw-r--r-- | DOCS/man/en/mplayer.1 | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index b898eda8b5..ef313ed43a 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -5099,22 +5099,33 @@ using a method that keeps one field and interpolates the other, the result is a juddering video that has every fourth frame duplicated. This filter is intended to find and drop those duplicates and restore the original film framerate. -When using this filter, you must specify \-ofps that is 4/\:5 of the fps of the -input file (24000/1001 if the input is 30000/1001 fps). +When using this filter, you must specify \-ofps that is 4/\:5 of +the fps of the input file and place the softskip later in the +filter chain to make sure that divtc sees all the frames. +Two different modes are available: +One pass mode is the default and is straightforward to use, +but has the disadvantage that any changes in the telecine +phase (lost frames or bad edits) cause momentary judder +until the filter can resync again. +Two pass mode avoids this by analyzing the whole video +beforehand so it will have forward knowledge about the +phase changes and can resync at the exact spot. +These passes do +.B not +correspond to pass one and two of the encoding process. +You must run an extra pass using divtc pass one before the +actual encoding throwing the resulting video away. +Use \-nosound \-ovc raw \-o /dev/null to avoid +wasting CPU power for this pass. +You may add something like crop=2:2:0:0 after divtc +to speed things up even more. +Then use divtc pass two for the actual encoding. +If you use multiple encoder passes, use divtc +pass two for all of them. The options are: .RSs .IPs pass=1|2 Use two pass mode. -This produces best results. -Pass one analyzes the video and writes the results to a log file. -Pass two then reads this log file and uses the information to do -the actual work. -Note that these passes do -.B not -correspond to pass one and two of the encoding process. -In order to use divtc two pass with two pass video encoding, you must perform -three passes: first divtc pass one and encoder pass one, then divtc pass two -and encoder pass one, and finally divtc pass two and encoder pass two. .IPs file=<filename> Set the two pass log filename (default: "framediff.log"). .IPs threshold=<value> |