Well, LAV Filters are very similar to ffdshow. Nevertheless, the most recommendable multi-codec not "codec pack". I just doubt it includes a VfW interface; ffdshow has it ffvfw. Originally Posted by LigH. Just use ffdshow.
Disable all the other decoders if you don't want it to decode them. Just enable the Raw Video decoders. Contact Us VideoHelp Top. All times are GMT The time now is All rights reserved. Latest tool updates. DVDFab K-Lite Codec Pack Standard Video Thumbnails Make Do i need a YUY2 codec or something? Use Lagarith. It's not uncompressed, but it is lossless, so imagewise it will be the same. Read my blog here. It does give the greatest detail of a video, when captured, but it also eats up a lot of HDD space, not to mention my years-long-suffering the noise in my captured videos.
That is why I had opped for the DV route and use my advc to this day.. So, until then.. Thanks for the info guys. I am assuming that is why I had the YUYuncompressed option. Must be a codec related to that card. My question is if i load that driver on to my good system, then do you think i would have that option?
I did try the lagarith codec and it seems to work good. Should I even worry about loading that other driver to get the YUY2 or just stick with the lagarith codec? Assuming it is "lossless" there shouldnt really be any noticible difference right? Visually, no. Sizewise, Lagarith will give you much smaller files.
If Lagarith already works for you, stick with it! Contact Us VideoHelp Top. We believe these formulas can be reasonably approximated by the following:. These formulas use some coefficients that require more than 8 bits of precision to produce each 8-bit result, and intermediate results will require more than 16 bits of precision.
The sections that follow present some methods for converting and formats to This section describes an example method for performing the upconversion.
The method assumes that the video pictures are progressive scan. The to interlaced scan conversion process presents atypical problems and is difficult to implement. This article does not address the issue of converting interlaced scan from to Let each vertical line of input chroma samples be an array Cin[] that ranges from 0 to N - 1. The corresponding vertical line on the output image will be an array Cout[] that ranges from 0 to 2N - 1.
To convert each vertical line, perform the following process:. The equations for handling the edges can be mathematically simplified. They are shown in this form to illustrate the clamping effect at the edges of the picture.
In effect, this method calculates each missing value by interpolating the curve over the four adjacent pixels, weighted toward the values of the two nearest pixels Figure The specific interpolation method used in this example generates missing samples at half-integer positions using a well-known method called Catmull-Rom interpolation, also known as cubic convolution interpolation.
In signal processing terms, the vertical upconversion should ideally include a phase shift compensation to account for the half-pixel vertical offset relative to the output sampling grid between the locations of the sample lines and the location of every other sample line.
However, introducing this offset would increase the amount of processing required to generate the samples, and make it impossible to reconstruct the original samples from the upsampled image. It would also make it impossible to decode video directly into surfaces and then use those surfaces as reference pictures for decoding subsequent pictures in the stream. Therefore, the method provided here does not take into account the precise vertical alignment of the samples.
Doing so is probably not visually harmful at reasonably high picture resolutions. If you start with video that uses the sampling grid defined in H. Moreover, the distinction is probably not visually harmful at reasonably high picture resolutions.
Trying to correct for this problem would create the same sort of problems discussed for the vertical phase offset. The method described previously for vertical upconversion can also be applied to horizontal upconversion.
Convert the image to , and then convert the image to You can also switch the order of the two upconversion processes, as the order of operation does not really matter to the visual quality of the result. Use them as follows:. For example:. Reversing the order is necessary because the Windows operating system uses a little-endian architecture.
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