Doporučuji zkusit se řídit spíše tímhle. Dá to sice víc práce ale kvalita je vyšší a navíc je to bezpečnější způsob. Pokud totiž použijete Flask riskujete problémy se synochronizací zvuku a navíc na některých strojích při kompresi často zatuhne.
Flask je docela dobrá hračka pokud si to chcete jen tak zkusit, ale je to program jen pro naprosté začátečníky (nízká kvalita, mizerná stabilita běhu a spolehlivost výsledku, minimální možnosti korekce).
This is my method ( Christians Short Ripping Guide):
A. Rip the DVD to HD :
1. Rip VOBs to HD using Smartripper 2.34 in "movie" mode, about 40 - 50 mins on my machine as my crappy Toshiba 1502 drive cant do better than 3x
2. use FlaskMPEG 0.6 to open the VOBs ( not the IFO coming with the VOBs !! ) and check what track number will give you the right language audio stream in Flask0.6s Audioplayer. 0x80 is Track 1, 0x81 is Track 2, etc. Alternatively you may do the same in Smartripper by using "file mode" and only saving the right language audio stream with the VOBs ( saves space ).
B. Prepare for frameserving the Vobs for Virtualdub, extract audio stream to WAV and normalize it :
3. Open the VOBs in DVD2AVI1.76 ( http://www.doom9.net/ ) and use the "Save Project" function, creating a .d2v Project for the frameserver ( virtual AVI, preferably to be saved in the same folder as the VOB files are ) and extracting the audio same time into a PCM WAV file, by selecting the right audio track.
DVD2AVIs AC3 audio decoding including dolby surround down mix to Stereo is one of the best around, very good audio indeed, even its 44.1 KHz sampling rate conversion ( recommended to assure compatibility with older soundcards ) is best of, but note that I sometimes had sync issues when encoding audio in Vdub with DivX4 Beta video codec, so I recommend to use Virtualdub's sampling rate conversion instead when compressing the audio in Vdub later !
Set "video" "iDCT" to "64 Bits floating point iDCT" as Jackei, the maker of DVD2AVI said RefIDCT is not working as it should and the quality of 64 Bits iDCT is close to be prefect while being very fast.
If using the MPEG2DEC frameserver after DVD2AVI1.76 as explained in this ShortGuide make sure that in the "video" "colour space" menu YUV is set instead of RGB ( vice versa for VFapi frameserver, see according Guide from Doom9 at http://www.doom9.net/ or http://www.divx-digest.com/nickyguides ).
4. Next step is to normalize the audio, being not a must but is recommended. This will not affect the dynamic range of the sound stream but just raise the volume of it such that all the 16 Bits dynamics of your soundcard are really used fully, resulting in much improved SNR ( Signal-to-Noise-Ratio ), especially for cheaper soundcards.
Download "normalizer 0.24" from http://www.doom9.net/ , unzip it to a directory of your choice, and open two explorer windows. First window must be the directory of your WAV file ( the one DVD2AVI gave us ), 2nd is the normalize.exe . Now just mark your WAV file, press left mouse button and drag the WAV file over the normalize.exe in the 2nd explorer window with your cursor, release left mouse button. A window should pop up telling you its analyzing the WAV file for maxima and minima in 1st pass. 2nd pass will amplify your WAV file accordingly, source file will be overwritten, whole process will take about 30 mins !!
We will use this WAV file later for audio encoding, depending on whether we use LAME VBR MP3 or do a CBR MP3 audio compression in Virtualdub.
C. Using the MPEG2DEC/AVISynth frameserving method to render our VOB files to Virtualdub for video encoding :
5. Download the MPEG2DEC.dll from http://me.in-berlin.de/~faphida/index.html and put it in the folder of your choice, write down the folder name. Note there is a new optimized version of MPEG2DEC for use with "Gordian Knot" that helps to automatize some cropping features, you may find it at http://thewef.nav.to/alpha.htm , check the according Forum Section in Doom9s Forum http://pub28.ezboard.com/fdoom9smpegforumfrm35 for more info .
6. Get the latest MMX optimized AVISynth.dll from http://www.doom9.net/ ( search through the "Old News" ) or the original from Bens homepage ( http://www.math.berkeley.edu/~benrg/avisynth.html ) , copy the .dll file into your Win/system folder and register it by clicking the "install" registration file coming with it.
7. Write your AVS script file, a simple text file, an example is :
---------------------------------------------------------------------------
LoadPlugin("C:\winnt\system32\MPEG2DEC.DLL")
mpeg2source("C:\Gladiator\Video_ts\gladiator.d2v")
---------------------------------------------------------------------------
Save this text file with all your real pathes, the ones given here are just examples of course !! Save it as avs file like "movie.avs" in hifens ( correct ? ) as an AVISynth script file.
8. Virtualdub 1.4 c and better can open this "movie.avs" file then directly and you will have finally rendered the VOBs to Virtualdub. You can move the slider and see the frames just like it was an AVI. Note that the aspect ratio you see is the original AR of the VOB files including the unwanted black bars. After cropping and resizing this will be corrected.
9. Important Note : To make full use of MPEG2DECs speed advantage against Vfapi frameserver you should use AVISynths cropping and resizing as in this case a double YUV - RGB conversion can be avoided. To keep this ShortGuide easy I don't go into detail here now, but you may check Doom9s or Nicky Pages AVISynth Guides to learn more about its possibilities, also the Guide coming with AVISynth is very helpful. For ease of use I normally do cropping and resizing in Virtualdub. Speed advantage ( if there is any ) against Vfapi is marginal then, but I found its faster done to write an AVS script file like the one given above instead of running Vfapi and creating a virtual AVI.
D. Using Virtualdubs cropping and resizing, assisted by "The Gordian Knot" :
10. Open "video" "filters" and add the "null transform" filter. The "cropping" button will appear. Press it, move the slider to a point in the movie where there is good contrast between picture and black bars. Crop the black bars fully until only the picture itself is left. Note these values for top/bottom/left/right .
11. Open "The Gordian Knot" ( Doom9 aga
