FDecimate 1.1.0 Download

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FDecimate
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  • Name:FDecimate
  • License:GPL
  • Developer:Donald Graft
  • Downloads:33
  • Rating:2 / 5
  • OS:Windows All
  • Size:38 KB
  • D.M.C.A. 
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FDecimate 1.1.0

FDecimate 1.1.0 Description:

The FDecimate Avisynth filter was designed to provide extended decimation capabilities not available from Decimate. It can remove frames from a clip to achieve the desired frame rate, while retaining audio/video synchronization. It preferentially removes duplicate frames where possible. ("FDecimate" stands for "Free Decimate", which implies that the output frame rate may be freely chosen, and is not limited to 1-in-N decimation). Increasingly we are seeing applications where traditional 1-in-N decimation is not sufficient. Four of them in particular stand out.

First, High Definition (HD) digital television often delivers a doubled frame rate, e.g., 59.94 fps for ATSC. A progressive film with a native frame rate of 24 fps can be converted to HD rates by duplicating frames in a pattern. For example to get from 24 fps to 60 fps, we can use this pattern:

A A A B B C C C D D E E E F F ...

We can call this a 3232... frame duplication pattern. Another example is 25 fps to 60 fps conversion, which uses a 3232232322... pattern. Converting from 60 fps to the broadcast rate of 59.94 fps can be achieved by either slowing down the video and adjusting the audio to match it, or by excluding one of the duplicates every 1000 frames. In either case, our final stream has many duplicates and the traditional 1-in-N decimation approach can no longer be directly applied. Sometimes, successive 1-in-N decimations can be applied, but this is cumbersome. And while Decimate(mode=2) is helpful with multiple duplicates, it is not always successful in that regard.

Second, anime is often rendered at 12 fps and converted to 29.97 fps by duplicating frames in a manner similar to that described above. The result is the same: a stream with multiple duplicates that is not reliably addressed by 1-in-N decimation.

Third, many silent films are transferred to DVD by adding duplicates in unusual patterns, because the original frame rates are not 24 fps. It is not unusual to see clips requiring strange decimations such as 20 in 43. Sometimes these strange decimations can be attained, or nearly attained, through repeated application of Decimate() using different cycles, but that is a cumbersome approach that cannot always attain the exact decimation ratios required. FDecimate() allows specification of arbitrary frame rates and is therefore useful in recovering the original cranking rates of these silent movies.

Fourth, sometimes clips are rendered at 120 fps to properly present hybrids of film and video. if we wish to return to normal frame rates, we need to remove multiple duplicates.

The FDecimate() filter helps in these situations. An earlier filter, MultiDecimate(), also attempted to help but it is a two-pass implementation that requires an additional external program, and is therefore cumbersome. It also could produce audio desynchronization if not used very carefully. I consider FDecimate() to be a superior approach.

Please note that, while FDecimate() can be used for traditional 1-in-N decimation, it is probably preferable to stay with Decimate() for those applications, because it does not require the setting of a threshold for duplicate detection when used in mode=0.

FDecimate 1.1.0 Requirements:

· Avisynth 2.5

FDecimate security information

You cannot download any crack or serial number for FDecimate on this page. Every software that you are able to download on our site is legal. There is no crack, serial number, hack or activation key for FDecimate present here. Our collection also doesn't contain any keygens, because keygen programs are being used in illegal ways which we do not support. All software that you can find here is freely downloadable and legal.

FDecimate installation package is prepared to be downloaded from our fast download servers. It is checked for possible viruses and is proven to be 100% clean and safe. Various leading antiviruses have been used to test FDecimate, if it contains any viruses. No infections have been found and downloading FDecimate is completelly problem free because of that reason. Our experts on malware detection tested FDecimate with various spyware and malware detection programs, including fyxm.net custom malware and spyware detection, and absolutelly no malware or spyware was found in FDecimate.

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Enjoy!

Rate FDecimate 1.1.0!

Rating: 1.8/5 (6 votes cast)

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