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TMPGEnc 4.0 XPress BBS [ Sorted by thread creation date ]
what performance is everyone getting with encoding? Using other programs to encode a dvdrip to H264 format file is roughly the same speed as using tmpeg 4x xpress with CUDA, which I find disappointing. As an example, taking a 90min movie @ 720X480 fullscreen 29.97 frames/sec and encoding to H264 720X480 29.97 frames/sec single pass 2500 kbit/s Variable bitrate takes on my machine roughly 100 minutes or averaging 21 frames/second. Then using the same movie with tmpeg 4 xpress with CUDA gpu exceleration and all the same settings takes the ame amount of time if not longer and the status showing CPU usage hovers around 30% and CUDA around 67%. When I compare this as close as possible with another CUDA enabled program badaboom, badaboom only takes 25 minutes.
Are you using any video filters? If you aren't, then you should turn CUDA off as it will only be effective when you are using video filters and/or MPEG decoding.
Their data shows that the more video filters you are using, the more effective CUDA encoding will be. Conversely, if you aren't using any video filters, then it will actually be slower than CPU-only encoding.
when i try to reduce a 768x1280 mpg to 384x640, i expected to see a file size reduction from 15Mb down to about 3 or 4Mb. i see NO file size reduction at all the output file is exactly the same size as the source file despite being 25% the actual pixels. why is this and how can i achieve this savings?
Are you sure you're looking at the right output file? There's no way it should be exactly the same file size.
I can reduce a 720x480 mpeg file to 360x240 and the file is roughly half the size as expected.
What are the settings you're using in the format stage?
one would think that just these settings would drop the output size down to 25%. it does NOTHING for file size - the same EXACT size as the input is output.
i open both the input and the output in windows media player and the properties show that the original is 768x1280 and the output file is 384x640 so that's working but the file size is unchanged.
It's your bitrate settings. If you use CBR at 6000kbps for each version of the movie, you'll get 6000kb of data for each second of the movie, no matter what the resolution is.
Try change it to VBR (Constant Quality); it'll keep the quality up but adjust the bitrate accordingly. You can also lower your bitrate if you want to use CBR.
so if i drop my bitrate down from 6000 to 1500 won't the output video look crappy (i guess i'll know when i see) it just seems to me like by default when you lower the size of an IMAGE, you don't have to lower the jpg quality to see the savings.
Like I said, if you use CBR, it will force the output to be the same amount of data no matter what the video dimensions are. That's what makes it CONSTANT bitrate. This IS the reason your two videos are the same size; there is no other explanation.
Lowering the CBR will lower the quality, especially on scenes with a lot of motion/complexity. This is why VBR is much better; it can adjust the bitrate according to the complexity of the scene.
Comparing CBR to a jpeg isn't accurate since when you resize a jpeg, it takes into account any detail loss and adjusts the file size accordingly. Jpegs are saved based on quality (like VBR) not on a file size target which is essentially what CBR is.
Is there a reason you need to use CBR? VBR is really the best option.
I was trying to run TMPGENC under a limited user account, when I saw another post here from another user, regarding the availability of GPGPU only under admin accounts.
Come on guys, is it so hard to implement in the next version the GPGPU feature to run under all accounts and not just under admin? I am facing the same problem, I do not want to make it available under limited accounts, and at the moment it is not possible...
I'm having a problem encoding dvr-ms audio. I find that whenever there is a "glitch" in the original audio stream, the audio stops encoding right at that point and the rest of the audio is silent. This also happens within the clip-editor. I have to run back to before the error to get audio working again. I can cut several frames out around the glitch and the audio will work correctly. I have reported this bug, but it is a very painful bug to work around. Has anyone else experienced this and is there a better workaround?
I use Newtek's Speededit to transfer homemovies and VHS to DVD. I was wondering how TMPGEnc XPress works on these SD formats. I have used "other" programs, but I get alot of pixilation in the black with it. I would like to hear from you all about using TMPGEnc XPress this way. thanks
Hi all sorry for my English but I speak Spanish I would like to know if it is compatible with TMPGEnc 4.0 XPress Windows XP SP3? which is seen by some bug reports here, because I am interested in buying and I do not want to take a surprise and if I needed to try the trial and I downloaded it I did not go. Thank you!
Hello,
I seem to remember in a very old version that you could increase the number of passes. Does that feature still exist? Did it do much?
I understand from a bit of reading that the Pros have software that they can 'hand tweak' the compression during various parts of the movie. What are they doing? Is this a feature that might get added?
I know that you can do more than 2 passes when you choose DivX file output (advanced mode), but I've never used it and I don't know how the pros tweak things.
Is it possible to use TMPGEnc 4.0 XPress to join two mp4 audio/video files together without re-encoding? Both files have the same resolution, bit rate, etc.
I am using TMPGENC to encode .avis I have created from old and very noisy black and white films into.mpeg for DVDs.
The instruction for setting the controls on the Noise Reduction filter only refers toreducing "color" noise (Chrominance). These films are black and white and have been desaturated. They don't have color noise, only luminance noise
Does either or both of the filter methods in the Noise Reduction filter also effect luminance noise?
If there is no luminance reduction, should I ignore the noise reduction filter when working with Black and White films?
There is a new survey on the TMPGEnc website. I think it'll be a good place to let them know what kind of features or products you'd like to see. Plus, who knows? you might win some free software.
Is it possible to use the KVCD templates I have for TMPGenc 2.5 Plus?? If so, how do I enable them, I want Xpress to produce mpg files that will fit on a CD, the one now that are produced do not seem to write properly on my WinAvi burning program, thanks