Frage von DezorianGuy:
Hi!
I've noticed that native / in front of the cassette to the PC dubbed HDV material with Premiere about 11 GB of claims, per hour of video.
With Aspect Cineforms HDs codec the videos are like 30 GB at medium quality setting + progressive. Why is that?
What is the meaning of a program Aspect HD? What can I do so because more than with HDVSplit and Premiere CS3? Except that the files are bigger: O?
Thx,
Christian
Antwort von Marco:
"What can I do so because more than with HDVSplit and Premiere CS3?" Over several generations, rendering a better quality and at the same time when working with filters / shields / compositing get better performance.
Marco
Antwort von Wiro:
Hello,
the principal has already said Marco.
Here are some details:
Cineform Intermediate is a system - will mean that the HD-camera footage into a wavelet-format is converted. This format is only slightly compressed (hence the larger files, as you yourself have already stated) and is specifically designed for real-time editing with high Resolutionin a multi-generational environment.
Not every film needs Cineform normal (it is very expensive so synonymous). I would from my own experience say that Cineform is useful if the following requirements s.den HD workflow are:
- Realtime multi-track editing and compositing for (track Mountains)
- Generate multiple generations through lossless export and reimport of parts of the timeline
- Many color and many "heavy" effects during the Postpro
- Merge multiple camera formats (no longer a problem, since all in a single market Intermediate)
- Cross-platform compatibility (PC / MAC). Cineform data work on both platforms equally
These are the fast, the points on which I personally appreciate Cineform have learned. There are other functionalities that are in normal operation requires less (Telecine, pull, etc.).
Greeting Wiro
Antwort von DezorianGuy:
So, no direct improvement of the image ... right?
Antwort von Axel:
So, no direct improvement of the image ... right? Wrong thinking. No obvious deterioration in machining.
Antwort von Wiro:
So, no direct improvement of the image ... right? Improving the image?
Better than the original does not ...
;-)
Greeting Wiro
Antwort von WoWu:
Especially suitable for very quiet pictures, if possible without moving, because then the coefficients to zero and it has almost nothing to be transferred. If movement into the game, it comes through the temporal filtering in a very disturbing motion blur. The picture looks very soft fact. Some call it
cineastisch .... I call it simple arithmetic errors.
The improved multi-generation behavior is synonymous only RAW data, where the color has not been changed, ie a kind of digital negative ..... without Farbmaske etc. Meets with HDV according to CF anyway. Not that there is actually higher for Dynamics is designed ... HDV has only 8bit ... and the CF are no longer synonymous.
So what you get is a blurring the picture because of temporal filtering, the wavelet of movements brings with it ... some like it. The other targeted benefits you'll get only if you s.with the beginning of RAW data from the sensors are working ... Was it only once a finished picture ... the benefits are quite gone.
In addition, the codec is prone to the formation of mosquito noise, which at a later transcoding to an end codec that is again based DCT (zBMPEG), a significant deterioration in the final image may result.
Antwort von Marco:
The practical experience with current Cineform codec versions look different, more positive. There is no visible blurring, is not synonymous with movement and is not synonymous Render after several generations, are not synonymous, when the HDV was original and the final product or an MPEG file is AVC. Especially in comparison to the behavior of Render HDV to HDV (with material changes between the generations Render) Cineform performs better. As an intermediate for HDV and / or AVC editing is well suited.
Marco
Antwort von wolfgang:
Against the Cineform codes speaks synonymous, however, that he worked for the conversion in the codec a shift in the Rotbereich it learns. I can not exactly say whether at the very last-generation codec is still the case - in earlier versions tested codec wars clearly the case.
This must be a non-times very disturbing, if one accepts that the images thus be slightly warmer.
Antwort von Marco:
No significant or detectable color shift with current codec versions ausmachbar.
Marco
Antwort von Bruno Peter:
There are nonetheless always ollen Kamellen hervorgezaubert ...
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