divx size

[luka]

hi!

i think, i have problems with divx file size, or maybe not. i was following -DV to DivX Guide-, did excatly the same and from 1 minute long DV file (230MB) i got DivX file (42MB). Is this normal? When i put bitrate quantizer higher than 4, the picture is terrible. please answer me!

luka

[bb]

You probably forgot to compress the audio. Make sure you set Audio to Full processing, and you chose an encoder, e.g. MP3.

For the video quantizers higher than 4 are not recommended (as stated in the guide).


bb

[luka]

hi!

no, i didn' t forget to compress audio. i tried even without sound (no music), but divx file size is still around 40MB. there should be something else, but i don' t know what.

luka

[bb]

DV file size is normal (1min @ 3.6 MB/s = 216 MB/min). But your DivX file size is too large. 40 MB/min means almost 5.500 kbps. For DivX 2000 kbps is a very good bitrate, which is about 15.5 MB/min including a 128 kbps audio track. So there must be something wrong with your encoding.

Please post all your settings.

bb

[luka]

Hi!

I have uploaded some pictures from my settings. And they are on this adress:

www2.arnes.si/~lmulej

Bye, luka

P.S.: Is still doesn' t work. :(

[bb]

To handle the "Couldn't locate decompressor for format 'dvsd' (unknown)" install the Panasonic DV codec (see sticky threads).

In the "Video Save Options" I'd rather use DV type-1, because I had some problems with Ulead's type-2 handling, but never with type-1.

Where are the DivX 5.0.2 settings?

bb

[luka]

Hi!

Right now i am not at home, so i can' t make pictures of DivX 5.0.2 settings. At home i installed DivX codec and change everything, as it was written in DV to DivX Guide. For installing the Panasonic DV Codec - i will install it, when i am at home. I saw how to do it in sticky posts.
Do i have to use Panasonic Codec for capturing video, or after editing in Ulead Media Studio Pro, to convert it in one file?

Bye, Luka

[bb]

You need it to decode or encode DV in VfW (= Video for Windows) applications like VirtualDub. You can also do this with Adaptec's DV codec (DV Soft), which you obviously have installed already.

But it's also possible to open a DV file in VirtualDub without a VfW DV codec, if you use AviSynth and it's DirectShowSource command instead of AviSource, like DirectShowSource("C:\Video\MyFilm.avi", 25). The 25 is the frame rate for PAL; adjust it to your needs.

As far as I can see your Ulead settings aren't the problem. It must be somewhere in your DivX settings.

bb

[theReal]

If you're encoding DV to a high resolution without any filters, a bitrate of 5500 @ quant 4 is possible, I think.

Steps you can take to make the file smaller are:
1. Use fielddeinterlace() for deinterlacing, it usually compresses better than other deinterlacing filters.
2. Use a smaller resolution for the Divx
3. Use another resizing filter (bilinear instead of bicubic, not really recommended, though...)
4. Use convolution3d and/or temporalsoften to filter the video
5. Use Divx 5 pre-processessing "light" or "normal" to filter the video even more.

I was just messing with some DV video to Divx conversion and the avisynth script I finally came up with was this:

LoadPlugin("F:\PROGRA~1\GORDIA~1\decomb.dll")
LoadPlugin("F:\PROGRA~1\GORDIA~1\convolution3d.dll")
LoadPlugin("F:\PROGRA~1\GORDIA~1\avsmon.dll")

directshowsource("test.AVI")

ConvertToYUY2()

fielddeinterlace()

convolution3d(0,10,10,8,8,3,0)

LanczosResize(640,464)

MonitorFilter()

Adding pre-processing light or normal in addition to this isn't wrong for sources that are not compressing well.

[luka]

Hi!

Working again on DV to DivX. I installed Panasonic DV Codec, but than the DVSoft disappeared. I don' t know why. I tried both, Panasonic Type-1 and Type-2, without any problems.
xpic00 (http://www2.arnes.si/~lmulej/xpic00.jpg)

I started Virtual Dub.
xpic01 (http://www2.arnes.si/~lmulej/xpic01.jpg)

And when i wanted to open type-1 file, than i got this message.
xpic02 (http://www2.arnes.si/~lmulej/xpic02.jpg)

...but i still can work with it. Type-2 file i could open without any messages. And here are some settings of my Virtual Dub.
options>performance
xpic03 (http://www2.arnes.si/~lmulej/xpic03.jpg)
xpic04 (http://www2.arnes.si/~lmulej/xpic04.jpg)
xpic05 (http://www2.arnes.si/~lmulej/xpic05.jpg)
xpic06 (http://www2.arnes.si/~lmulej/xpic06.jpg)
xpic07 (http://www2.arnes.si/~lmulej/xpic07.jpg)
xpic08 (http://www2.arnes.si/~lmulej/xpic08.jpg)

I was using fast recompress. That is picture, made during recompress work. Maybe it helps.
xpic09 (http://www2.arnes.si/~lmulej/xpic09.jpg)

DivX file, which was made, had good quality, good sound, but big size. :(
xpic10 (http://www2.arnes.si/~lmulej/xpic10.jpg)

Help, please!

theReal, where to do that settings, which you posted?

Bye, Luka

[theReal]

The settings are for avisynth - you have to install avisynth, write a textfile with these commands, name it something.avs and then open it with VirtualDub (it opens just like an avi file).

You can also use VDub filters instead of avisynth filters - you have to set VDub to full processing mode instead of fast recompress and then go to "video"->"filters"->"add" and choose the filters you want (like resize, smartdeinterlace and temporalsmoother, for example).

I prefer avisynth for filtering and resizing, but there are also a lot of good filter-plugins for VDub, it's your choice.

[luka]

Hi!

I think i don' t need any filters, because, everything edit in Ulead Media Studio Pro, so i just need to convert dv file to avi file with normal size. And this 'normal' is a problem for me. I will try also with AviSynth.

Bye, Luka

[theReal]

I think i don' t need any filters, because, everything edit in Ulead Media Studio Pro, so i just need to convert dv file to avi file with normal sizeYou must at least use a deinterlace filter, because DV is interlaced video (unless your camcorder is able to record progressive, but I guess you'd know about it then) and Divx doesn't support interlaced video. The two interlaced fields will always be packed into one frame with Divx, and this only looks good if you deinterlace first.

Then - the filters I mentioned help reduce the size of the final Divx Video. You don't necessarily need any filters, but without you just get a very big filesize.

[luka]

Hi!

I tried filters which you mentioned. File size is a little better. Than i add 2:1 reduction (high quality) and i got divx file, 1 minute /13Mb size. But the picture is half of original. Do you have any other suggestion, how to keep the original size, without loosing a lot of quality? Any other filters?

Bye, Luka

[luka]

Hi!

I captured many videos from dv camcorder. Than i tried to convert them into divx. And than...

First converted (into divx) file size is 1min/13mb. Second converted (into divx) file size is 1min/24mb. I was using the same procedure for converting them. Is this normal?

Bye, Luka