Provided by: transcode_1.1.7-9ubuntu2_amd64 bug

NAME

       transcode - filter modules collection

SYNOPSIS

       transcode -J filters [other options]

COPYRIGHT

       transcode  is  Copyright  (C) 2001-2003 by Thomas Oestreich, 2003-2004 Tilmann Bitterberg,
       2004-2008 Transcode Team

MODULE OPTIONS

       The syntax for filter options is simple. A filter is specified with

           -J filter=optionstring

       The optionstring can contain multiple options which are separated by colons `:´

           -J filter=option1:option2:option3

       An option can have an argument or non (bool). For options with an argument, the format  in
       which  the argument has to be given to the option is specified in a printf(1) like string.
       The most common case is `%d' which simply means a number. The argument has to be seperated
       from the option by a `=´.

           -J filter=bool1:option1=15:option2=20x30

       Most  filters  try  to  do  the right thing with the default options. You should play with
       various parameters if you are not satisfied with the default behaviour.  If  you  have  no
       idea what a filter does, its very likely that you don't need it.

       If  a  filter  takes (for eg.) a filename as an argument, make sure that the filename does
       not contain a `:' or a `='. Its a limitation of the parser. A comma `,'  is  possible  but
       must be extra quoted. For the text filter that is

           -J text=string="Hello\, World"

FILTER MODULES

       To see what filter modules are avalaible for your transcode installation, do a

           ls -1 $( tcmodinfo -p )/filter*.so

       A complete transcode installation has the following filter modules:

       29to23 - frame rate conversion filter (interpolating 29 to 23)
           29to23  was  written by Max Alekseyev, Tilmann Bitterberg. The version documented here
           is v0.3 (2003-07-18). This is a video filter. It can handle RGB and YUV mode. It is  a
           pre-processing only filter.

       32detect - 3:2 pulldown / interlace detection plugin
           32detect  was  written  by Thomas. The version documented here is v0.2.4 (2003-07-22).
           This is a video filter. It can handle RGB and YUV mode. It supports multiple instances
           and can run as a pre-processing and/or as a post-processing filter.

           · threshold = %d  [default 9]
              Interlace detection threshold
           · chromathres = %d  [default 4]
              Interlace detection chroma threshold
           · equal = %d  [default 10]
              threshold for equal colors
           · chromaeq = %d  [default 5]
              threshold for equal chroma
           · diff = %d  [default 30]
              threshold for different colors
           · chromadi = %d  [default 15]
              threshold for different chroma
           · force_mode = %d  [default 0]
              set internal force de-interlace flag with mode -I N
           · pre = %d  [default 1]
              run as pre filter
           · verbose (bool)
              show results

                  This filter checks for interlaced video frames.  Subsequent de-interlacing with
                  transcode can be enforced with 'force_mode' option

       32drop - 3:2 inverse telecine removal plugin
           32drop  was  written  by  Thomas  Oestreich.  The  version  documented  here  is  v0.4
           (2003-02-01).  This  is  a  video filter. It can handle RGB and YUV mode. It is a pre-
           processing only filter.

       aclip - generate audio clips from source
           aclip was  written  by  Thomas  Oestreich.  The  version  documented  here  is  v0.1.1
           (2003-09-04). This is a audio filter. It is a pre-processing only filter.

           · level = %d  [default 10]
              The audio must be under this level to be skipped
           · range = %d  [default 25]
              Number of samples over level will be keyframes

       astat - audio statistics filter plugin
           astat  was  written  by  Thomas  Oestreich.  The  version  documented  here  is v0.1.3
           (2003-09-04). This is a audio filter. It is a pre-processing only filter.

           · file = %s
              File to save the calculated volume rescale number to

       compare - compare with other image to find a pattern
           compare was  written  by  Antonio  Beamud.  The  version  documented  here  is  v0.1.2
           (2003-08-29).  This  is  a  video  filter. It can handle RGB and YUV mode. It supports
           multiple instances. It is a post-processing only filter.

           · pattern = %s
              Pattern image file path
           · results = %s
              Results file path
           · delta = %f  [default 45.000000]
              Delta error

                  Generate a file in with information about the times,  frame,  etc  the  pattern
                  defined in the image parameter is observed.

           The  format  of  the  command  file is framenumber followed by at least one whitespace
           followed by the command followed by at least one whitespace followed by arguments  for
           the command.  Empty lines and lines starting with a `#' are ignored. The frame numbers
           must be sorted ascending.

                 # Example file
                 # At frame 10 load the smooth filter
                 10 load smooth
                 # reconfigure at 20
                 20 configure smooth=strength=0.9
                 99 disable smooth

       cpaudio - copy one audio channel to the other channel filter plugin
           cpaudio was written  by  William  H  Wittig.  The  version  documented  here  is  v0.1
           (2003-04-30). This is a audio filter. It is a post-processing only filter.

           · source = %c  [default l]
              Source channel (l=left, r=right)

                  Copies audio from one channel to another

       decimate - NTSC decimation plugin
           decimate  was  written  by  Thanassis  Tsiodras.  The  version documented here is v0.4
           (2003-04-22). This is a video filter. It can handle YUV  mode  only.  It  is  a  post-
           processing only filter.

           · verbose (bool)
              print verbose information

                  see /docs/README.Inverse.Telecine.txt

       denoise3d - High speed 3D Denoiser
           denoise3d  was written by Daniel Moreno & A'rpi. The version documented here is v1.0.6
           (2003-12-20). This is a video filter.  It  can  handle  YUV  mode  only.  It  supports
           multiple instances. It can be used as a pre-processing or as a post-processing filter.

           · luma = %f  [default 4.000000]
              spatial luma strength
           · chroma = %f  [default 3.000000]
              spatial chroma strength
           · luma_strength = %f  [default 6.000000]
              temporal luma strength
           · chroma_strength = %f  [default 4.000000]
              temporal chroma strength
           · pre = %d  [default 0]
              run as a pre filter

                  What:  The  denoise3d filter from mplayer (sibling of hqdn3d). Works very crude
                  and simple but also very fast. In fact it is even faster than the original from
                  mplayer as I managed to tweak some things (a.o. zero frame copying).

                  Who: Everyone who wants to have their captured frames thoroughly denoised (i.e.
                  who want to encode to mpeg or mjpeg) but do not have enough processing power to
                  real-time  encode  AND use hqdn3d (better quality but a lot slower) or dnr (yet
                  slower), not to mention the other denoisers that are even  slower.  Quality  is
                  really  good  for  static  scenes  (if  fed  with the right parameters), moving
                  objects may show a little ghost-image (also depends on parameters) though. Your
                  milage may vary.

                  How:  Parameters are the same as the hqdn3d module, although in practice you'll
                  not end up with exactly the same values. Just experiment.  Particular for  this
                  version of the filter is that if you supply -1 to either component's parameters
                  (luma/chroma), that component will not have the filter applied  to.  If  you're
                  still  short  on  CPU cycles, try disabling the luma filter, this will not make
                  much difference in the effectiveness of the filter!

       detectclipping - detect clipping parameters (-j or -Y)
           detectclipping was written by Tilmann Bitterberg, A'rpi. The version  documented  here
           is  v0.1.0  (2003-11-01).  This  is a video filter. It can handle RGB and YUV mode. It
           supports multiple instances and  can  run  as  a  pre-processing  and/or  as  a  post-
           processing filter.

           · range = %u-%u/%d  [default 0-4294967295/1]
              apply filter to [start-end]/step frames
           · limit = %d  [default 24]
              the sum of a line must be below this limit to be considered as black
           · post (bool)
              run as a POST filter (calc -Y instead of the default -j)

                  Detect  black  regions  on  top,  bottom,  left  and  right of an image.  It is
                  suggested that the filter is run for around 100  frames.   It  will  print  its
                  detected parameters every frame. If you don't notice any change in the printout
                  for a while, the filter probably won't  find  any  other  values.   The  filter
                  converges, meaning it will learn.

       detectsilence - audio silence detection with tcmp3cut commandline generation
           detectsilence was written by Tilmann Bitterberg. The version documented here is v0.0.1
           (2003-07-26). This is a audio filter. It is a pre-processing only filter.

       divxkey - check for DivX 4.xx / OpenDivX / DivX;-) keyframe
           divxkey was  written  by  Thomas  Oestreich.  The  version  documented  here  is  v0.1
           (2002-01-15). This is a video filter. It is a pre-processing only filter.

       dnr - dynamic noise reduction
           dnr  was  written by Gerhard Monzel. The version documented here is v0.2 (2003-01-21).
           This is a video filter. It can handle RGB and YUV mode. It is a  post-processing  only
           filter.

           · lt = %d  [default 10]
              Threshold to blend luma/red
           · ll = %d  [default 4]
              Threshold to lock luma/red
           · ct = %d  [default 16]
              Threshold to blend croma/green+blue
           · cl = %d  [default 8]
              Threshold to lock croma/green+blue
           · sc = %d  [default 30]
              Percentage of picture difference (scene change)

                  see /docs/filter_dnr.txt (german only)

       doublefps - double frame rate by deinterlacing fields into frames
           doublefps  was  written  by  Andrew  Church.  The  version  documented  here  is  v1.1
           (2006-05-14). This is a video and audio filter. It can handle YUV and YUV422 modes. It
           is a pre-processing only filter.

           · topfirst = %d  [default 0 when height=480, else 1]
              Assume top field is displayed first
           · fullheight = %d  [default 0]
              Output full-height frames

           Doubles  the  frame  rate of interlaced video by separating each field into a separate
           frame.  The fields can either be left as is (giving a progessive video with  half  the
           height  of  the  original) or re-interlaced into their original height (at the doubled
           frame rate) for the application of a separate deinterlacing filter.

           Note that due to transcode limitations, it is currently necessary to use the -Z option
           to  specify  the output frame size when using half-height mode (this does not slow the
           program down if no actual zooming is done).

       extsub - DVD subtitle overlay plugin
           extsub was  written  by  Thomas  Oestreich.  The  version  documented  here  is  0.3.5
           (2003-10-15).  This  is a video filter. It can handle RGB and YUV mode. It can be used
           as a pre-processing or as a post-processing filter.

           · track = %d  [default 0]
              Subtitle track to render
           · vertshift = %d  [default 0]
              offset of subtitle with respect to bottom of frame in rows
           · timeshift = %d  [default 0]
              global display start time correction in msec
           · antialias = %d  [default 1]
              anti-aliasing the rendered text (0=off,1=on)
           · pre = %d  [default 1]
              Run as a pre filter
           · color1 = %d  [default 0]
              Make a subtitle color visible with given intensity
           · color2 = %d  [default 0]
              Make a subtitle color visible with given intensity
           · ca = %d  [default 0]
              Shuffle the color assignment by choosing another subtitle color
           · cb = %d  [default 0]
              Shuffle the color assignment by choosing another subtitle color

       fieldanalysis - Field analysis for detecting interlace and telecine
           fieldanalysis was written by Matthias Hopf. The version documented here  is  v1.0  pl1
           (2004-08-13).  This  is a video filter. It can handle RGB,YUV and YUV422 mode. It is a
           pre-processing only filter.

           · interlacediff = %f  [default 1.1]
              Minimum temporal inter-field difference for detecting interlaced video
           · unknowndiff = %f  [default 1.5]
              Maximum inter-frame change vs. detail differences for neglecting interlaced video
           · progressivediff = %f  [default 8]
              Minimum inter-frame change vs. detail differences for detecting progressive video
           · progressivechange = %f  [default 0.2]
              Minimum temporal change needed for detecting progressive video
           · changedifmore = %f  [default 10]
              Minimum temporal change for detecting truly changed frames
           · forcetelecinedetect = %d  [default 0]
              Detect telecine even on non-NTSC (29.97fps) video
           · verbose = %d  [default 0]
              Output analysis for every frame
           · outdiff = %d  [default 0]
              Output internal debug frames as luminance of YUV video (see source)

       fields - Field adjustment plugin
           fields  was  written  by  Alex  Stewart.  The  version  documented  here   is   v0.1.1
           (2003-01-21).  This  is  a  video filter. It can handle RGB and YUV mode. It is a pre-
           processing only filter.

           · flip (bool)
              Exchange the top field and bottom field of each frame
           · shift (bool)
              Shift the video by one field
           · flip_first (bool)
              Normally shifting is performed before flipping, this option reverses that

                  The 'fields' filter is designed to  shift,  reorder,  and  generally  rearrange
                  independent  fields  of  an  interlaced  video  input.   Input  retrieved  from
                  broadcast (PAL, NTSC, etc) video sources generally comes in an interlaced  form
                  where each pass from top to bottom of the screen displays every other scanline,
                  and then the next pass displays the lines between  the  lines  from  the  first
                  pass.   Each  pass  is  known  as a "field" (there are generally two fields per
                  frame).  When this form of video is captured and manipulated digitally, the two
                  fields  of  each frame are usually merged together into one flat (planar) image
                  per frame.   This  usually  produces  reasonable  results,  however  there  are
                  conditions  which  can  cause this merging to be performed incorrectly or less-
                  than-optimally, which is where this filter can help.

                  The following options are supported for this filter (they can be  separated  by
                  colons):

                    shift - Shift the video by one field (half a frame),
                            changing frame boundaries appropriately.  This is
                            useful if a video capture started grabbing video
                            half a frame (one field) off from where frame
                            boundaries were actually intended to be.

                    flip  - Exchange the top field and bottom field of each
                            frame.  This can be useful if the video signal was
                            sent "bottom field first" (which can happen
                            sometimes with PAL video sources) or other
                            oddities occurred which caused the frame
                            boundaries to be at the right place, but the
                            scanlines to be swapped.

                    flip_first
                          - Normally shifting is performed before flipping if
                            both are specified.  This option reverses that
                            behavior.  You should not normally need to use
                            this unless you have some extremely odd input
                            material, it is here mainly for completeness.

                    help  - Print this text.

                  Note:  the  'shift'  function may produce slight color discrepancies if YV12 is
                  used as the internal transcode video format (default).  This  is  because  YV12
                  does not contain enough information to do field shifting cleanly. For best (but
                  slower) results, use RGB mode for field shifting.

       fps - convert video frame rate, gets defaults from -f and --export_fps
           fps  was  written  by  Christopher  Cramer.  The  version  documented  here  is   v1.1
           (2004-05-01).  This  is a video filter. It can handle RGB and YUV mode. It can be used
           as a pre-processing or as a post-processing filter.

                  options: <input fps>:<output fps> example: -J fps=25:29.97  will  convert  from
                  PAL  to  NTSC If no options are given, defaults or -f/--export_fps/--export_frc
                  will be used.  Some examples:

                       -J fps=10:5:pre          convert from 10 fps to 5 fps, preprocess       -J
                  fps=10:post:12   convert     from     10    to    12,    postprocess         -J
                  fps=pre=1:7:5    convert    from    7     to     5,     postprocess          -J
                  fps=9:3.1:post=-0x7   convert from 9 to 3.1, postprocess

                  If that last one is confusing you, remember that 0 is false and everything else
                  is true. Of course, octal and hexadecimal numbers are supported too.   This  is
                  intended to be backward compatible with the old format.

       hqdn3d - High Quality 3D Denoiser
           hqdn3d  was  written  by  Daniel Moreno & A'rpi. The version documented here is v1.0.2
           (2003-08-15). This is a video filter.  It  can  handle  YUV  mode  only.  It  supports
           multiple instances. It can be used as a pre-processing or as a post-processing filter.

           · luma = %f  [default 4.000000]
              spatial luma strength
           · chroma = %f  [default 3.000000]
              spatial chroma strength
           · luma_strength = %f  [default 6.000000]
              temporal luma strength
           · chroma_strength = %f  [default 4.500000]
              temporal chroma strength
           · pre = %d  [default 0]
              run as a pre filter

                  This filter aims to reduce image noise producing smooth images and making still
                  images really still (This should enhance compressibility).

       invert - invert the image
           invert was written by Tilmann  Bitterberg.  The  version  documented  here  is  v0.1.4
           (2003-10-12).  This  is a video filter. It can handle RGB,YUV and YUV422 mode. It is a
           post-processing only filter.

           · range = %u-%u/%d  [default 0-4294967295/1]
              apply filter to [start-end]/step frames

       ivtc - NTSC inverse telecine plugin
           ivtc was written  by  Thanassis  Tsiodras.  The  version  documented  here  is  v0.4.1
           (2004-06-01).  This  is  a  video  filter.  It  can handle YUV mode only. It is a pre-
           processing only filter.

           · verbose (bool)
              print verbose information
           · field = %d  [default 0]
              which field to replace (0=top 1=bottom)
           · magic = %d  [default 0]
              perform magic? (0=no 1=yes)

                  see /docs/README.Inverse.Telecine.txt

       levels - Luminosity level scaler
           levels  was  written  by  Bryan  Mayland.  The  version  documented  here  is   v1.0.0
           (2004-06-09).  This  is  a  video  filter.  It  can  handle YUV mode only. It supports
           multiple instances. It is a post-processing only filter.

           · input = %d-%d  [default 0-255]
              input luma range (black-white)
           · gamma = %f  [default 1.000000]
              input luma gamma
           · output = %d-%d  [default 0-255]
              output luma range (black-white)

       logo - render image in videostream
           logo was  written  by  Tilmann  Bitterberg.  The  version  documented  here  is  v0.10
           (2003-10-16).  This  is  a video filter. It can handle RGB and YUV mode. It is a post-
           processing only filter.

           · file = %s
              Image filename
           · posdef = %d  [default 0]
              Position (0=None, 1=TopL, 2=TopR, 3=BotL, 4=BotR, 5=Center)
           · pos = %dx%d  [default 0x0]
              Position (0-width x 0-height)
           · range = %u-%u  [default 0-0]
              Restrict rendering to framerange
           · ignoredelay (bool)
              Ignore delay specified in animations
           · rgbswap (bool)
              Swap red/blue colors
           · grayout (bool)
              YUV only: don't write Cb and Cr, makes a nice effect
           · flip (bool)
              Mirror image

                  This filter renders an user specified image into the video.  Any  image  format
                  ImageMagick  can  read  is  accepted.   Transparent  images are also supported.
                  Image origin is at the very top left.

                  see /docs/filter_logo.txt

       logoaway - remove an image from the video
           logoaway was written by Thomas Wehrspann <thomas@wehrspann.de>. The version documented
           here  is v0.5 (2004-03-07). This is a video filter. It can handle RGB and YUV mode. It
           is a post-processing only filter. It supports multiple instances.

           · range = %d-%d  [default 0-4294967295]
              Frame Range
           · pos = %dx%d  [default -1x-1]
              Position of logo
           · size = %dx%d  [default -2x-2]
              Size of logo
           · mode = %d  [default 0]
              Filter Mode (0=none,1=solid,2=xy,3=shape)
           · border (bool)
              Visible Border
           · dump (bool)
              Dump filterarea to file
           · xweight = %d  [default 50]
              X-Y Weight(0%-100%)
           · fill = %2x%2x%2x  [default 000]
              Solid Fill Color(RGB)
           · file = %s
              Image with alpha/shape information

                  This filter removes an image in a user specified area from the video.  You  can
                  choose from different methods.

                  see /docs/filter_logoaway.txt

       lowpass - High and low pass filter
           lowpass  was  written  by  Tilmann  Bitterberg.  The version documented here is v0.1.0
           (2002-02-26). This is a audio filter. It is a pre-processing only filter.

           · taps = %d  [default 30]
              strength (may be negative)

       mask - Filter through a rectangular Mask
           mask was written by Thomas Oestreich, Chad Page. The version documented here is v0.2.3
           (2003-10-12).  This  is a video filter. It can handle RGB,YUV and YUV422 mode. It is a
           pre-processing only filter.

           · lefttop = %dx%d  [default 0x0]
              Upper left corner of the box
           · rightbot = %dx%d  [default 32x32]
              Lower right corner of the box

                  This filter applies an rectangular mask to the video.  Everything  outside  the
                  mask is set to black.

       modfps - plugin to modify framerate
           modfps  was  written by Marrq. The version documented here is v0.10 (2003-08-18). This
           is a video filter. It can handle RGB and YUV mode. It is a pre-processing only filter.

           · mode = %d  [default 1]
              mode of operation
           · infps = %f  [default 25.000000]
              Original fps
           · infrc = %d  [default 0]
              Original frc
           · buffer = %d  [default 5]
              How many frames to buffer
           · subsample = %d  [default 32]
              How many pixels to subsample
           · clonetype = %d  [default 0]
              How to clone frames
           · verbose = %d  [default 1]
              run in verbose mode

                  This filter aims to allow transcode to alter the fps of video.  While  one  can
                  reduce  the  fps  to any amount, one can only increase the fps to at most twice
                  the original fps.

                  There are two modes of operation, buffered and unbuffered, unbuffered is quick,
                  but buffered, especially when dropping frames should look better.

                  For most users, modfps will need either no options, or just mode=1

                  see /docs/README.filter.modfps

       msharpen - VirtualDub's MSharpen Filter
           msharpen  was written by Donald Graft, William Hawkins. The version documented here is
           (1.0) (2003-07-17). This is a video filter. It can handle RGB and YUV mode.  It  is  a
           post-processing only filter.

           · strength = %d  [default 100]
              How much  of the effect
           · threshold = %d  [default 10]
              How close a pixel must be to the brightest or dimmest pixel to be mapped
           · highq = %d  [default 1]
              Tradeoff speed for quality of detail detection
           · mask = %d  [default 0]
              Areas to be sharpened are shown in white

                  This  plugin  implements  an  unusual  concept in spatial sharpening.  Although
                  designed specifically for anime, it also works  well  with  normal  video.  The
                  filter  is  very  effective  at  sharpening  important edges without amplifying
                  noise.

                    * Strength 'strength' (0-255) [100]
                      This is the strength of the sharpening to be applied  to  the  edge  detail
                  areas.  It  is  applied  only  to  the  edge  detail areas as determined by the
                  'threshold' parameter. Strength 255 is the strongest sharpening.
                    * Threshold 'threshold' (0-255) [10]
                      This parameter  determines  what  is  detected  as  edge  detail  and  thus
                  sharpened.  To  see  what  edge  detail areas will be sharpened, use the 'mask'
                  parameter.
                    * Mask 'mask' (0-1) [0]
                      When set to true, the areas to be sharpened are shown in  white  against  a
                  black  background.  Use  this  to set the level of detail to be sharpened. This
                  function also makes a basic edge detection filter.
                    * HighQ 'highq' (0-1) [1]
                      This parameter lets you tradeoff speed for quality of detail detection. Set
                  it to true for the best detail detection. Set it to false for maximum speed.

       normalize - Volume normalizer
           normalize was written by pl, Tilmann Bitterberg. The version documented here is v0.1.1
           (2002-06-18). This is a audio filter. It is a pre-processing only filter.

           · smooth = %f  [default 0.06]
              Value for smoothing ]0.0 1.0[
           · smoothlast = %f  [default 0.06]
              Value for smoothing last sample ]0.0, 1.0[
           · algo = %d  [default 1]
              Algorithm to use (1 or 2). 1=uses a 1 value memory and coefficients new=a*old+b*cur
              (with  a+b=1).   2=uses several samples to smooth the variations (standard weighted
              mean on past samples)

       null - demo filter plugin; does nothing
           null  was  written  by  Thomas  Oestreich.  The  version  documented  here   is   v0.2
           (2003-09-04).  This is a video and audio filter. It can be used as a pre-processing or
           as a post-processing filter.

       pp - Mplayers postprocess filters
           pp was written by Michael Niedermayer et al, Gerhard Monzel.  The  version  documented
           here  is  v1.2.4 (2003-01-24). This is a video filter. It can handle YUV mode only. It
           supports multiple instances. It can  be  used  as  a  pre-processing  or  as  a  post-
           processing filter.

           · hb = %d:%d  [default 64:40]
              Horizontal deblocking filter
           · vb = %d:%d  [default 64:40]
              Vertical deblocking filter
           · h1 (bool)
              Experimental h deblock filter 1
           · v1 (bool)
              Experimental v deblock filter 1
           · dr (bool)
              Deringing filter
           · al (bool)
              Automatic brightness / contrast
           · f (bool)
              Stretch luminance to (0..255)
           · lb (bool)
              Linear blend deinterlacer
           · li (bool)
              Linear interpolating deinterlace
           · ci (bool)
              Cubic interpolating deinterlacer
           · md (bool)
              Median deinterlacer
           · de (bool)
              Default preset (hb:a/vb:a/dr:a/al)
           · fa (bool)
              Fast preset (h1:a/v1:a/dr:a/al)
           · tn = %d:%d:%d  [default 64:128:256]
              Temporal Noise Reducer (1<=2<=3)
           · fq = %d  [default 15]
              Force quantizer
           · pre (bool)
              Run as a PRE filter

       preview - xv/sdl/gtk preview plugin
           preview  was  written  by  Thomas  Oestreich.  The  version  documented here is v0.1.4
           (2002-10-08). This is a video filter. It can handle RGB and YUV mode. It  is  a  post-
           processing only filter.

                  XXX: Write me

       pv - xv only preview plugin
           pv was written by Thomas Oestreich, Tilmann Bitterberg. The version documented here is
           v0.2.3 (2004-06-01). This is a video filter. It can handle YUV and YUV422 mode. It  is
           a post-processing only filter.

           · cache = %d  [default 15]
              Number of raw frames to cache for seeking
           · skip = %d  [default 0]
              display only every Nth frame
           · fullscreen (bool)
              Display in fullscreen mode

                  The  filter  listens  to  mouse  and key strokes. If you click into the preview
                  window, the first time say near the upper left corner and the second time  near
                  the  lower right corner, transcode will draw a rectangle and will print out the
                  coordinates of this rectangle on stdout and the socket. See the table below for
                  available keys.

                  When  you  start transcode with the --socket option and the pv filter with (for
                  example) cache=20 you can talk to transcode and the pv filter at runtime  using
                  the socket.

                  transcode -i file.avi -J pv=cache=30 --socket /tmp/sock

                  Available Commands

                  Key  Socket*   Effect

                  RET     draw redraws the image, applying filters.

                  u       undo goes to image before draw

                  SPACE   pause     pause the preview (and transcode)

                  UP      fastfw    in pause mode, step forward 5 frames

                  RIGHT   slowfw    in pause mode, step forward 1 frame

                  DOWN    fastbw    in pause mode, step back 5 frames

                  LEFT    slowbw    in pause mode, step back 1 frame

                  q       display   toggle display of frames

                  s       slower    slow down

                  f       faster    speed up

                  y       toggle    toggle displaying only every 5 frames

                  j       grab save a JPEG

                  r       rotate    rotate AVI file after next keyframe

                      (*) all commands must be prefixed with "preview ".

       resample - audio resampling filter plugin
           resample  was  written  by  Thomas  Oestreich.  The  version documented here is v0.1.4
           (2003-08-22). This is a audio filter. It is a pre-processing only filter.

       skip - skip all listed frames
           skip  was  written  by  Thomas  Oestreich.  The  version  documented  here  is  v0.0.1
           (2001-11-27). This is a video and audio filter. It is a pre-processing only filter.

           · fstart1-fend1 [ fstart2-fend2 [ .. ] ] = %s
              apply filter [start-end] frames

       slowmo - very cheap slow-motion effect
           slowmo  was  written  by  Tilmann  Bitterberg.  The  version  documented  here is v0.3
           (2003-29-11). This is a video filter. It can handle RGB and YUV mode.  It  is  a  pre-
           processing only filter.

                  This filter produces a simple slow-motion effect by duplicating certain frames.
                  I have seen this effect on TV and despite its the  simple  algorithm  it  works
                  quite well. The filter has no options.

       smartbob - Motion-adaptive deinterlacing for double-frame-rate output.
           smartbob  was written by Donald Graft, Tilmann Bitterberg. The version documented here
           is v1.1beta2 (2003-06-23). This is a video filter. It can handle RGB and YUV mode.  It
           is a post-processing only filter.

           · motionOnly = %d  [default 0]
              Show motion areas only
           · shiftEven = %d  [default 0]
              Blend instead of interpolate in motion areas
           · threshold = %d  [default 12]
              Motion Threshold
           · denoise = %d  [default 1]
              Phase shift

                  This filter only makes sense when fed by -J doublefps.  It will take the field-
                  frames which filter_doublefps produces and generates full-sized motion adaptive
                  deinterlaced output at the double import framerate.

       smartdeinter - VirtualDub's smart deinterlacer
           smartdeinter  was  written  by  Donald  Graft.  The  version  documented here is v2.7b
           (2003-02-01). This is a video filter. It can handle RGB and YUV mode.  It  is  a  pre-
           processing only filter.

           · motionOnly = %d  [default 0]
              Show motion areas only
           · Blend = %d  [default 0]
              Blend instead of interpolate in motion areas
           · threshold = %d  [default 15]
              Motion Threshold
           · scenethreshold = %d  [default 100]
              Scene Change Threshold
           · fieldShift = %d  [default 0]
              Phase shift
           · inswap = %d  [default 0]
              Field swap before phase shift
           · outswap = %d  [default 0]
              Field swap after phase shift
           · noMotion = %d  [default 0]
              Disable motion processing
           · highq = %d  [default 0]
              Motion map denoising for field-only
           · diffmode = %d  [default 0]
              Motion Detection (0=frame, 1=field, 2=both)
           · colordiff = %d  [default 1]
              Compare color channels instead of luma
           · cubic = %d  [default 0]
              Use cubic for interpolation

                  This  filter provides a smart, motion-based deinterlacing capability. In static
                  picture areas, interlacing artifacts do not appear, so data from both fields is
                  used to provide full detail. In moving areas, deinterlacing is performed

       smartyuv - Motion-adaptive deinterlacing
           smartyuv  was  written  by  Tilmann  Bitterberg.  The version documented here is 0.1.4
           (2003-10-13). This is a video filter. It can handle  YUV  mode  only.  It  is  a  pre-
           processing only filter.

           · motionOnly = %d  [default 0]
              Show motion areas only, blacking out static areas
           · diffmode = %d  [default 0]
              Motion Detection (0=frame, 1=field, 2=both)
           · threshold = %d  [default 14]
              Motion Threshold (luma)
           · chromathres = %d  [default 7]
              Motion Threshold (chroma)
           · scenethres = %d  [default 31]
              Threshold for detecting scenechanges
           · highq = %d  [default 1]
              High-Quality processing (motion Map denoising)
           · cubic = %d  [default 1]
              Do cubic interpolation
           · Blend = %d  [default 1]
              Blend the frames for deinterlacing
           · doChroma = %d  [default 1]
              Enable chroma processing (slower but more accurate)
           · verbose = %d  [default 0]
              Verbose mode

                  This  filter  is basically a rewrite of the smartdeinter filter by Donald Graft
                  (without advanced processing options) for YUV mode only. Its faster than  using
                  the  smartdeinter in YUV mode and is also tuned with its threshold settings for
                  YUV mode. The filter detects motion and static  areas  in  an  image  and  only
                  deinterlaces  (either  by blending or by cubic interpolation) the moving areas.
                  The result is an image with high detail in static areas, no information is lost
                  there.

                  The  threshold settings should be sufficent for most users. As a rule of thumb,
                  I recommend setting the  chroma  threshold  to  about  the  half  of  the  luma
                  threshold.  If  you  want  more  deinterlacing, lower the thresholds. The scene
                  threshold can be easily found by  turning  on  verbose  mode  and  the  preview
                  filter.  In  verbose  mode,  the filter will print out, when it detects a scene
                  change. If scenechanges go by unnoticed, lower the  scene  threshold.  You  can
                  completly  disable  chroma  processing  with  the doChroma=0 option.  Here is a
                  sample commandline

                  -J
                  smartyuv=highq=1:diffmode=2:cubic=1:Blend=1:chromathres=4:threshold=8:doChroma=1

       smooth - (single-frame) smoothing plugin
           smooth was written by Chad Page. The version documented here is  v0.2.3  (2003-03-27).
           This  is  a  video  filter.  It  can handle YUV mode only. It is a pre-processing only
           filter. It supports multiple instances.

           · strength = %f  [default 0.25]
              Blending factor
           · cdiff = %d  [default 6]
              Max difference in chroma values
           · ldiff = %d  [default 8]
              Max difference in luma value
           · range = %d  [default 4]
              Search Range

                  "single-frame" means it only works with the current frame, it does not need the
                  next  or the previous frame for operation. Usually smoothing is done by talking
                  the data of previous frames into account to see which parts of the picture  can
                  be "safely" smoothed, this filter only needs one frame.

           Usage   -J   subtitler="[no_objects]  [subtitle_file=s]  [color_depth=n]  [font_dir=s]
           [font=n] [font_factor=f [frame_offset=n] [debug] [help]" f is float, h is  hex,  n  is
           integer, s is string.

           no_objects           disables subtitles and other objects (off).
           color_depth=         32 or 24 (overrides X auto) (32).
           font=                0 or 1, 1 gives strange symbols... (0).
           font_dir=            place where font.desc is (~/.subtitles/font).
           font_factor=         .1 to 100 outline characters (10.75).
           frame_offset=        positive (text later) or negative (earlier) integer (0).
           subtitle_file=       pathfilename.ppml location of ppml file (~/.subtitles/demo.ppml).
           debug                prints debug messages (off).
           help                 prints this list and exit.

       testframe - generate stream of testframes
           testframe  was  written  by  Thomas  Oestreich.  The version documented here is v0.1.3
           (2003-09-04). This is a video filter. It can handle RGB and YUV mode.  It  is  a  pre-
           processing only filter.

           · mode = %d  [default 0]
              Choose the test pattern (0-4 interlaced, 5 colorfull)

       text - write text in the image
           text  was  written  by  Tilmann  Bitterberg.  The  version  documented  here is v0.1.4
           (2004-02-14). This is a video filter. It can handle RGB and YUV mode. It  is  a  post-
           processing only filter.

           · range = %u-%u/%d  [default 0-4294967295/1]
              apply filter to [start-end]/step frames
           · string = %s
              text to display (no ':') [defaults to `date`]
           · font = %s
              full path to font file [defaults to arial.ttf]
           · points = %d  [default 25]
              size of font (in points)
           · dpi = %d  [default 96]
              resolution of font (in dpi)
           · fade = %d  [default 0]
              fade in/out (0=off, 1=slow, 10=fast)
           · antialias = %d  [default 1]
              Anti-Alias text (0=off 1=on)
           · pos = %dx%d  [default 0x0]
              Position (0-width x 0-height)
           · posdef = %d  [default 0]
              Position (0=None 1=TopL 2=TopR 3=BotL 4=BotR 5=Cent 6=BotCent)
           · notransparent (bool)
              disable transparency (enables block box)

                  see /docs/filter_text.txt

       tomsmocomp - Tom's MoComp deinterlacing filter
           tomsmocomp  was  written  by  Tom  Barry  et  al.. The version documented here is v0.1
           (2004-07-31). This is a video filter. It can handle YUV and YUV422 mode. It is a  pre-
           processing only filter.

           · TopFirst = %d  [default 1]
              Assume the top field should be displayed first
           · SearchEffort = %d  [default 15]
              CPU time used to find moved pixels
           · UseStrangeBob = %d  [default 0]
              ?Unknown?
           · CpuFlags = %x  [default 5f]
              Manual specification of CPU capabilities

       unsharp - unsharp mask & gaussian blur
           unsharp  was  written  by  Remi  Guyomarch.  The  version  documented  here  is v1.0.1
           (2003-10-27). This is a video filter. It can handle YUV  mode  only.  It  is  a  post-
           processing only filter.

           · amount = %f  [default 0.0]
              Luma and chroma (un)sharpness amount
           · matrix = %dx%d  [default 0x0]
              Luma and chroma search matrix size
           · luma = %f  [default 0.0]
              Luma (un)sharpness amount
           · chroma = %f  [default 0.0]
              Chroma (un)sharpness amount
           · luma_matrix = %dx%d  [default 0x0]
              Luma search matrix size
           · chroma_matrix = %dx%d  [default 0x0]
              Chroma search matrix size
           · pre = %d  [default 0]
              run as a pre filter

                  This  filter  blurs or sharpens an image depending on the sign of "amount". You
                  can either set amount for both luma and chroma or you can set  it  individually
                  (recommended).  A  positive value for amount will sharpen the image, a negative
                  value will blur it. A sane range for amount is -1.5 to 1.5.

                  The matrix sizes must be odd and  define  the  range/strength  of  the  effect.
                  Sensible ranges are 3x3 to 7x7.

                  It  sometimes  makes  sense  to  sharpen  the  sharpen the luma and to blur the
                  chroma. Sample string is:

                  luma=0.8:luma_matrix=7x5:chroma=-0.2:chroma_matrix=3x3

       whitebalance - White Balance Filter - correct images with a broken white balance
           whitebalance was written by Guillaume Cottenceau. The version documented here is  v0.1
           (2003-10-01).  This  is  a  video filter. It can handle RGB and YUV mode. It is a pre-
           processing only filter.

           · level = %d  [default 40]
              Level of blue-to-yellow white balance shifting (can be negative)
           · limit = %s
              Limit to specified ranges (+fnumber toggles on, -fnumber toggles off)

                  This filter allows correcting movies with a broken white balance,  e.g.  bluish
                  movies.

       xharpen - VirtualDub's XSharpen Filter
           xharpen  was  written by Donald Graft, Tilmann Bitterberg. The version documented here
           is (1.0b2) (2003-02-12). This is a video filter. It can handle RGB and YUV mode. It is
           a post-processing only filter.

           · strength = %d  [default 200]
              How much  of the effect
           · threshold = %d  [default 255]
              How close a pixel must be to the brightest or dimmest pixel to be mapped

                  This  filter  performs  a  subtle but useful sharpening effect. The result is a
                  sharpening effect that not only avoids amplifying  noise,  but  also  tends  to
                  reduce  it. A welcome side effect is that files processed with this filter tend
                  to compress to smaller files.

                    Strength 'strength' (0-255) [200]
                      When this value is 255, mapped pixels are not  blended  with  the  original
                  pixel  values,  so a full-strength effect is obtained. As the value is reduced,
                  each mapped pixel is blended with more of the original pixel. At a value of  0,
                  the original pixels are passed through and there is no sharpening effect.

                    Threshold 'threshold' (0-255) [255]
                      This value determines how close a pixel must be to the brightest or dimmest
                  pixel to be mapped. If a pixel is more than threshold away from  the  brightest
                  or  dimmest pixel, it is not mapped.  Thus, as the threshold is reduced, pixels
                  in the mid range start to be spared.

       yuvdenoise - mjpegs YUV denoiser
           yuvdenoise was written by Stefan Fendt, Tilmann  Bitterberg.  The  version  documented
           here  is  v0.2.1 (2003-11-26). This is a video filter. It can handle YUV mode only. It
           can be used as a pre-processing or as a post-processing filter.

           · radius = %d  [default 8]
              Search radius
           · threshold = %d  [default 5]
              Denoiser threshold
           · pp_threshold = %d  [default 4]
              Pass II threshold
           · delay = %d  [default 3]
              Average 'n' frames for a time-lowpassed pixel
           · postprocess = %d  [default 1]
              Filter internal postprocessing
           · luma_contrast = %d  [default 100]
              Luminance contrast in percent
           · chroma_contrast = %d  [default 100]
              Chrominance contrast in percent.
           · sharpen = %d  [default 125]
              Sharpness in percent
           · deinterlace = %d  [default 0]
              Force deinterlacing
           · mode = %d  [default 0]
              [0]: Progressive [1]: Interlaced [2]: Fast
           · scene_thres = %d%%  [default 50]
              Blocks where motion estimation should fail before scenechange
           · block_thres = %d  [default 1024]
              Every SAD value greater than this will be considered bad
           · do_reset = %d  [default 2]
              Reset the filter for `n' frames after a scene
           · increment_cr = %d  [default 2]
              Increment Cr with constant
           · increment_cb = %d  [default 2]
              Increment Cb with constant
           · border = %dx%d-%dx%d  [default 0x0-32x32]
              Active image area
           · pre = %d  [default 0]
              run this filter as a pre-processing filter

                  see /docs/filter_yuvdenoise.txt

       yuvmedian - mjpegs YUV median filter
           yuvmedian was written by Mike Bernson, Tilmann Bitterberg. The version documented here
           is v0.1.0 (2003-01-24). This is a video filter. It can handle YUV mode only. It can be
           used as a pre-processing or as a post-processing filter.

           · radius_luma = %d  [default 2]
              Radius for median (luma)
           · radius_chroma = %d  [default 2]
              Radius for median (chroma)
           · threshold_luma = %d  [default 2]
              Trigger threshold (luma)
           · threshold_chroma = %d  [default 2]
              Trigger threshold (chroma)
           · interlace = %d  [default 0]
              Treat input as interlaced
           · pre = %d  [default 1]
              Run as a PRE filter

AUTHORS

       transcode was written by Thomas Oestreich
       <ostreich@theorie.physik.uni-goettingen.de> with  contributions  from  many  others.   See
       AUTHORS for details.

SEE ALSO

       transcode(1), transcode_import(1), transcode_export(1), tcmodinfo(1),