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Sorry for the inconvenience and thank you for your patience.
SWF File bigger than original AVI file?
Hi all,
I recorded full-screen at 1024x768 - with 22kHz mono sound - for about 3 minutes, with a resulting AVI file size of 3.7MB. Then I used Producer to make a SWF version of it (which took ages) and the SWF file ended up at 34MB!
Clearly I've done something wrong (I think). Are there any obvious newbie mistakes I could have made?
Which of my settings would anybody need to know to figure out where I went wrong?
Hope someone can help,
Simon
I recorded full-screen at 1024x768 - with 22kHz mono sound - for about 3 minutes, with a resulting AVI file size of 3.7MB. Then I used Producer to make a SWF version of it (which took ages) and the SWF file ended up at 34MB!
Clearly I've done something wrong (I think). Are there any obvious newbie mistakes I could have made?
Which of my settings would anybody need to know to figure out where I went wrong?
Hope someone can help,
Simon
Comments
Now, I don't know how SWF Producer encodes the video. If it uses a variable bitrate, then video with more "complex" images might create a larger file -- I think.
Also, when considering the file size of the SWF in relation to the AVI-file, then one must consider the codec used for compressing the AVI. You've obviously used codecs with a low bitrate. In comparison, the video I just tried with was 1024x768, exactly three minutes, 22KHz mono PCM audio (uncompressed) and video compressed with Microsoft Video 1. Resulting filesize: 166MB.
I don't know what the source file frame rate is, because I ticked 'Auto Adjust' in the Video options, but I did have the slider over to 'Max Framerate'. The recording was of me making some changes to an Excel spreadsheet - most of the screen was static most of the time.
I used the x264vfw codec as my 'Compressor'. It looks like it does a pretty good job then? - nearly nine times better than SWF ...
I'll try turning the framerate down so they're like yours and see what happens.
Thanks for your help Torbjorn.
Auto adjust with max framerate generally gives 200 fps, which is 15-20 times more than I think one needs. If you wan't to check this, right click on the file and choose properties. Go to the tab on the right, Advanced or Details I think it's called. The framerate will be listed there.
>>"I used the x264vfw codec as my 'Compressor'. It looks like it does a pretty good job then? - nearly nine times better than SWF ..."
Yeah, x264 is good. It's the one I've used on the few videos I've posted on the web.
I'll try a few experiments at lower rates.
Thanks again.
TV Shows -- 30 FPS
Animated Cartoons -- 24 FPS
See this Wikipedia article for more information:
http://en.wikipedia.org/wiki/Frames_per_second
I am very new to CamStudio but like it so far after trying about 6 others.
After trying CS 2.0 and 2.5b1 getting the file size down would be good.
How do you get/install the x264vfw codec?
Doing a search on this forum for "x264vfw" just returned this thread.
Thanks for all the help??
I found out that just downloading and installing the codec by running the .exe then CamStudio and many other screen capture apps will automatically pick up the new codec/s.
http://ffdshow-tryout.sourceforge.net/
Select H.264 from the drop down menu on the encoder tab and use the settings as show in this screenshot:
http://camstudio.org/images/FFDShow.png
They seem to work well for me.
HTH
Cheers
Nick :o)