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| Cyberman |
| Posted: Sep 6 2004, 08:21 AM |
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Advanced Member
Group: Members
Posts: 2035
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Well, download them.
www.divx.com has the DivX codec, my favorite.
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Matroska/MKV ? |
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| jjrrs |
| Posted: Nov 7 2004, 03:01 AM |
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Hi, I'm new and I will apologize in advance if I missed something someone already said and is reasking the same question, but I have the exact problem as this topic describes. I would try to convert a 8MB-30MB file and it jumps to 800MB-1.5GB, I thought I did everything that I was told as I set the compression to (DIVX codec) at (full compressing mode) for video and change the audio to (full compressing mode) also with (MP3 3 layer) compression every time I try to preview the file, yet every time it increase its size about 100 times. I tried every divx codec I could find and all of them dose the same thing, about 5 month ago I actually got it to work normally and I remebered doing the exact same thing but now I can't seem to get it right to save my life, can someone tell me if there is a setting I'm missing or something? thanks |
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| Cyberman |
| Posted: Nov 7 2004, 09:06 AM |
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Advanced Member
Group: Members
Posts: 2035
Member No.: 3477
Joined: 3-April 03
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Youīre sure you set it to Full Processing Mode, yes?
Then the only reason I could see is that you maybe gave it too much bitrate.
Or did you use 1Pass Quality based? In that case, the codec will use as much bitrate as needed to maintain the selected quality level, which could result in large files.
Did you run it through or did you look only at the status window? Sometimes the file size estimated by VDub isnīt correct, usually itīs a bit lower in the long run(because of the variable bitrate - VDub cannot see the future, it can only calculate basing on itīs currect information).
Maybe you could post the settings you used?
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Matroska/MKV ? |
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| fgl30 |
| Posted: May 20 2005, 09:43 PM |
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Hi.
My problem is: I have latest DivX sttuf insttaled, but DivX codec doesnīt appear in video compression tab. How to active it?
Thx |
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| Cyberman |
| Posted: May 20 2005, 11:16 PM |
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Advanced Member
Group: Members
Posts: 2035
Member No.: 3477
Joined: 3-April 03
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Try that:
http://forums.virtualdub.org/index.php?act...t=ST&f=3&t=2543
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Matroska/MKV ? |
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| fgl30 |
| Posted: May 21 2005, 02:41 AM |
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Thx, I tryed............ but thereīs no empty values in register  |
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| Belial |
| Posted: May 21 2005, 04:07 AM |
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Advanced Member
Group: Members
Posts: 402
Member No.: 6667
Joined: 8-October 03
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Are you talking about compressing,capturing,or both?Cause if you set capture to RGB,you can't choose divx5 as a capture codec. |
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| fgl30 |
| Posted: May 21 2005, 11:25 AM |
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No, Iīm talking about compression only......................
Thx |
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| kerryburn2 |
| Posted: May 22 2005, 07:07 PM |
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hi guys,
areally quick one on this issue, if all i want to do is cut and / or append the video avi file, then does it need to be re compressed??? i assume not.
thanks in advance
Kerry |
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| Belial |
| Posted: May 22 2005, 07:15 PM |
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Advanced Member
Group: Members
Posts: 402
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fgl30,try uninstalling,and reinstalling divx5.It sounds like the install got messed up,or something.
kerryburn2,yes,you don't have to recompress when appending or cutting.Just make sure both audio and video is set to direct stream copy,after you cut,or append. |
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| solar |
| Posted: Jul 29 2005, 10:51 PM |
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My problem is similar or at least it's in same category, so ithought there's no need to open a new topic.
I tried to resize a 320*240 video to 160*120 resolution. Selected direct stream copy for audio, full processing for video, selected DivX 5.2.1 codec and applied the resize filter. And the result is that the new file with two times smaller resolution has the same file size like the source file. And the source video file is also compressed with DivX 5.2.1 with identical codec settings (I captured it personally with TV capture card).
My goal was to reduce the resolution AND the file size by double, but the size remains the same or even a little bigger.
Well? |
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| Cyberman |
| Posted: Jul 30 2005, 09:35 AM |
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Advanced Member
Group: Members
Posts: 2035
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| QUOTE (solar @ Jul 29 2005, 11:51 PM) | And the source video file is also compressed with DivX 5.2.1 with identical codec settings
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My goal was to reduce the resolution AND the file size by double, but the size remains the same or even a little bigger.
Well? |
So, you told the DivX codec to compress the new video with exactly the same settings as the original video, and are surprised that itīs size didnīt change?
Did you ever think of reducing the BITRATE ? Because if not, it doesnīt matter how large/small/whatever the video is - the result will ALWAYS be the same.
Donīt resize the video, just reduce bitrate. Resize only if absolutely necessary.
This post has been edited by Cyberman on Jul 30 2005, 09:35 AM
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Matroska/MKV ? |
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| branflakes |
| Posted: Aug 4 2005, 05:03 PM |
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Just thought I'd add my experiences with this as it might help. I too downloaded VirtualDub with the intention of compressing some video files due to a lack of harddrive space, and I too ended up having the same problems most of you here seem to be having. Using the DivX 5.11 codecs I usually ended up doubling the size of the files I was trying to compress. Then I realised (after SEVERAL hours) that I was only altering the VIDEO compression settings! After changing the audio settings from "Direct Stream Copy" to "Full Processing Mode" and playing around with the available audio codecs I was finally able to get the file sizes down by about 30%, with only a slight reduction in video quality and no noticable loss in sound quality.
Hope this helps... |
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| Huck |
| Posted: Sep 12 2005, 07:33 AM |
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I've read this thread and I'm still confused on several points. Let me first explain what I'm trying to do. I want to save the result of an AVISynth script, which manipulates an AVI file I got by capturing from my digital camcorder using WinDV. So I open the .avs file (the script) in VirtualDub, do File -> Save as AVI, and wind up with a 3-second avi file that is over 100MB. Then I see a post recommending to set Direct Stream Copy for both audio and video, and saving it this way reduces my 3-second clip to about 68MB, still much larger than the 10MB I'm expecting..
Now I find this thread, which recommends that I specify a codec, preferably divx. I guess what confuses me is that, first of all, I thought AVI was an uncompressed format, and secondly, how can VirtualDub decode it for rendering without knowing the codec used, and if it knows the codec used, why do I have to specify one? Another thing that confuses me is that if I specify Direct Stream Copy for saving the file, as recommended by several other posts, the Compression item on the Video menu is disabled, so I can't pick a codec anyway.
Obviously I'm a novice and very confused. Any guidance would be appreciated. I just want to be able to make some edits to the AVi I captured without ballooning the size up or losing quality, and still be able to use an MPEG encoder on the result so I can burn it to a DVD.
Thanks,
Huck
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| stephanV |
| Posted: Sep 12 2005, 07:50 AM |
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Spam killer ;)
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| QUOTE | | I thought AVI was an uncompressed format |
AVI is not a video format at all. It is a container that can hold uncompressed, but also compressed video streams.
| QUOTE | | how can VirtualDub decode it for rendering without knowing the codec used |
It does know which codec is used, since there is fourcc (four character code) written in the AVI header which can be used to select a decoder.
| QUOTE | | and if it knows the codec used, why do I have to specify one? |
Because it only knows which codec to use for decompressing, not with which one you want to compress the video.
| QUOTE | | Another thing that confuses me is that if I specify Direct Stream Copy for saving the file, as recommended by several other posts, the Compression item on the Video menu is disabled, so I can't pick a codec anyway. |
Thats because Direct Stream Copy does exactly what it says, it directly copies the input stream to the output, so no conversion can be allowed. The reason why you are getting such a large file is because you are frameserving the data from Avisynth, which feeds uncompressed data to VirtualDub. Note that the only way to manipulate a video stream (besides cutting and pasting) is through uncompressing it.
| QUOTE | | I just want to be able to make some edits to the AVi I captured without ballooning the size up or losing quality, and still be able to use an MPEG encoder on the result so I can burn it to a DVD. |
Cant you feed the avs script directly to the mpeg2 encoder? Unless you do lossless compression (which is not really that effective) there is no way you can compress a file without losing at least some quality.
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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