- Tiff compressor decompressor movie#
- Tiff compressor decompressor series#
- Tiff compressor decompressor windows#
Tiff compressor decompressor movie#
You can support WMP and QuickTime by using a codec that is available for both (QuickTime Pro is very good at producing cross-platform files use its Movie to MPEG4 settings).
If you want to create a video for final delivery, create an archival quality version first, and then experiment with the codecs at your disposal to get the best quality vs. Because PNG and MJPEG are not highly assymetric, they're also suitable for test renders. If you want to create a very high quality video, suitable for use by a video editor, or for archival purposes, use a lossless codec (such as PNG) or a high quality lossy codec with no interframe compression at a high quality setting (such as MJPEG). For alpha channel support it's best to compress video using a lossless image codec, such as TIFF or PNG (so each frame is stored as a losslessly compressed image with alpha channel in tact). Most codecs (lossy codecs especially) do not support alpha channels. anything related to MPEG, such as H264) are highly asymmetric. Most codecs designed for final delivery (e.g. Some codecs are highly asymmetric (in general this means they take far longer to encode than to decode during playback) making them unsuitable for rapid iterative work (e.g. H264, MJPEG) are nearly lossless at high quality settings, making them suitable (in some cases) for passing data through a pipeline. Most lossy codecs allow you to trade off lossiness for file size. 
This is because HD video (24fps x 1920 x 1080 x 32-bit) consumes 200MB per second, which is enough to bring a high speed RAID to its knees). Only extremely high end video cameras offer lossless compression (the new - as of May 2012 - Nikon D800, at $3000, offers uncompressed HD video output, but you need a separate recorder).
Tiff compressor decompressor series#
The reason many video cameras use MJPEG is that while it uses more space than AVCHD or H264, it does not use temporal compression, so you can delete a series of frames without affecting the frames you keep. Such codecs tend to be best used for final delivery, since they do not allow lossless editing.
they store frames as deltas relative to a past or future keyframe.
Many codecs use inter-frame ("temporal") compression, i.e. JPEG (a still picture codec) and H264 (a video codec) are both lossy. This includes pretty much any codec associated with MPEG (which, confusingly, is used to refer to both file formats and codecs), Sorenson, H264 (which is an MPEG4 codec), and Cinepak. You should only use them for final delivery, not for creating files for use in a production pipeline (e.g. These codecs tend to be significantly lossy, especially in terms of dynamic range, introduce artifacts into the image, and are difficult to "scrub" (they're designed to be viewed forwards at normal speed). 
Some codecs are designed for delivery to end-users and not for editing or compositing. Neither can read FLVs, and Flash can't read MOVs or WMVs. Tiff compressor decompressor windows#
In general, Windows Media Player can read MOVs and QuickTime can read WMVs, but they have a different set of codecs. QuickTime allows you to use some file formats as codecs for videos (e.g. A file format is a separate thing (just like you can insert a JPEG into different word processor files).
A codec (compressor/decompressor) determines how a sequence is compressed.Oh, and looks like there are NINE things. Eight Things You Need to Know About Video CompressionĬorrections: edits, updates, and corrections May 2012.
0 kommentar(er)
