I ask 4 questions toward the end of this message. But first is my
beautification of the documentation.
minterpolate ...Convert the video to specified frame rate using motion
interpolation.
minterpolate=fps=60:mi_mode=Ø:scd=fdiff:scd_threshold=10 ...Defaults (Ø means
no default).
: : : :
: : : Scene change detection
threshold.
: : Scene change detection method. [1]
: : none ...Disable scene change detection.
: : fdiff ...Frame difference. [2]
: Motion interpolation mode.
: dup ...Duplicate previous or next frame for
interpolating new ones.
: blend ...Blend source frames. [3]
: mci ...Motion compensated interpolation:
: mci=Ø ...Default (Ø means no default).
: :
: mc_mode ...Motion compensation mode:
: mc_mode=obmc ...Default.
: :
: ombc ...Overlapped block.
: aobmc ...Adaptive overlapped block.
[4]
: me_mode ...Motion estimation mode:
: me_mode=bilat ...Default.
: :
: bidir ...Bidirectional motion
estimation. [5]
: bilat ...Bilateral motion estimation.
[6]
: me ...Motion estimation algorithm to be
applied.
: me=epzs ...Default.
: :
: esa ...Exhaustive search algorithm.
: tss ...Three step search algorithm.
: tdls ...Two dimensional logarithmic search
algorithm.
: ntss ...New three step search algorithm.
: fss ...Four step search algorithm.
: ds ...Diamond search algorithm.
: hexbs ...Hexagon-based search algorithm.
: epzs ...Enhanced predictive zonal search
algorithm.
: umh ...Uneven multi-hexagon search
algorithm.
The output frame rate. [7]
[1] Scene change leads motion vectors to be in random direction. Scene change detection replaces
interpolated frames by duplicated ones. May not be needed for other modes.
[2] Corresponding pixel values are compared and, if they do not exceed the scd_threshold, scene
change is detected.
[3] Interpolated frames are the mean of previous and next frames.
[4] To reduce oversmoothing, window weighting coefficients are controlled adaptively according to
the reliability of the neighboring motion vectors.
[5] Motion vectors are estimated for each source frame in both forward and
backward directions.
[6] Motion vectors are estimated directly for interpolated frame.
[7] This can be rational e.g. 60000/1001. Frames are dropped if fps is lower
than source fps.
Questions:
Does 'mi_mode' actually have no default?
Does 'mi_mode=mci' actually have no default?
Are 'mc_mode', 'me_mode', and 'me' mutually exclusive? If not, what delimiter
is used to separate them?
Does 'me' apply solely to 'me_mode' or also to 'mc_mode'?
Thanks so much!
--
Someone's sneaking in and turning up the range so that my food burns.
I'm sure of it.
And the older I get, the more sure of it I become.
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