hmm
took me a lil time
This is a "no scripting required" method on how to batch trim AVI files with VirtualDubMod without re-rendering.
Start VirtualDubMod (VDM)
Open the video file (can drag&drop from explorer too)
set the in point where you want the video to start (50 frames, ALT+Right arrow moves in 50 frame increments)
Click the "Mark in" button" (or the "HOME" key)
Now the in point is set, go to the video menu and choose "Direct stream Copy"
Go the file menu and choose "Save processing settings..." (or CTRL+S)
Save the settings where ever on your drive (add .vcf to the extension too).
Now from the file menu, choose "Job Control (or F4)
From the edit menu of the job control window, choose "Process Directory.."
Select the source and destination folders when prompted
Now you should see a list of all files that will be processed. Select and delete any files you don't want to process (not necessary)
FInally press Start, and you should witness the VDub batch in progress.
Speeding up video
First, you need to use Frame Rate/Decimate to remove frames (ie decimate by 4 if you want a 4x speed increase). However, this will simultaneously reduce the FPS to maintain audio sync. So you end up with a file that plays in the same amount of time with 1/4 the number of frames.
So after you decimate, re-open the resulting file which will have some ludicrously low FPS (like 7.5 or so) and reprocess to 30 FPS or whatever you want.
u can do both of these operations in Direct Stream Copy mode, so it is quite fast.
Decompress That AC3
if u use TMPGenc for all ur work u must be stuck with those divx/xvid files with AC3 codecs
really pi$$e$ me off too
so theres another software called avi2vcd ( no im not askin u to shift software
)
when u extract it there is a file called DECOMPRESS.EXE
feed in ur input avi and the path for ur output
then use tmpgenc to encode ur file
ofcourse the resultant file will be lik 1.2gb as opposed to the 700 mb u started off with
ofcourse u can rip the audio in virtualdub as WAV as well
u can get virtualdubmod here *virtualdubmod.sourceforge.net/
[edit]
Correcting DV Brightness Levels for MPEG encoding in TMPGEnc
DV format has a default brightness level from 16-235
this needs to be changed to 0-255 for mpeg2 or the video will look washed out in the player
this can be done automatically but manual adjustment gives u more control
open the file u wanna encode in tmpgenc .. and click on settings =>advanced Tab
this gives u a list of filters u can apply
Click on the checkbox next to "Custom color correction" to enable it. Then double-click on the phrase "Custom color correction" itself, to bring up the settings dialog for that filter. there click on the "Add" button at lower left which gives you the "RGB Brightness" type. you can use that but I prefer another one... in the "Type" pull-down menu click on the down arrow and select "Basic setting". now you'll have five sliders for Brightness, Contrast, Gamma, and Red and Blue shifts. on the right click on "Enable Filter" and "Show Histogram". a separate window will apear showing the pixel histograms for this video frame. There are two "Color" selections: chose the YCbCr button rather than RGB. Now, as you move the cue slider in the main correction window to scan through your video, the histogram window will show you the levels for each frame. Most important is the top graph (Y, or video intensity level). Standard DV levels (16-235 instead of 0-255) will not occupy the full width of the window.
for optimal MPEG2 encoding you want to adjust the filters brightness and contrast sliders so the intensity histogram just fills the whole width (but not too much which would clip whites or crush blacks). however you want to scan through your whole video and find the "extreme" dark and light scenes. If you adjust contrast based only on a low-contrast scene, you'll have bad looking video where the original was more dark, or bright. there is some judgement involved and this is one reason they pay the big bucks to "color shaders" in professional production a la "Mughal-E-Azam"
Variable Bit Rates In TMPGenc
use variable bit rates instead of constant ones for those fast moving action scenes
see the diff urself
i tried it too
found the link here
*www.digvid.info/tmpgenc/settings.php
