Little test-Capturing VHS with different codecs

[SerbianBoss]

Hello everybody,

I have a little test with VHS. I have 4 pictures. First 3 pictures was captured with virtualdub using picvideo mjpeg and huffyuv codecs.After i using Pinnacle studio or Sony Vegas to make MPEG. 4th picture was captured with software of my capture card Winfast PVR2000.

So, lets see:

First picture- captured with virtual dub using picvideo mjpeg codec with quality 20. One minut used 600 MB



Second picture-captured with virtual dub using picvideo mjpeg codec with quality 10. One minut used 87 MB



Third picture-captured with virtual dub using huffyuv 2.2.0 codec with best quality. One minut used 500 MB



Forth picture- captured with softvare of my tv card with 6000 bitrate




Conclusion:

Pictures 1 and 3 using 600 mb for minute. 4 picture using 90 mb for minute. Quality is the same. So, capture in MPEG is very usefull and good.

thats all

best regard

[thecoalman]

Quality is the same. So, capture in MPEG is very usefull and good.

The issue with mpeg capture is not the capture quality but the the ability to edit that footage without significant degradation in the quality. MPEG capture has other issues as well, some editors can't maintain the audio sync for example. If your just going to be taking your footage and doing some slight editing such as trimming the edges and will not be reencoding the footage that remains then it's not an issue. If you will be doing a lot of editing AVI capture is preferable.

Here 's some examples from a quick test I did, I used a very low bitrate since it will illustrate the differences so well. Each screenshot is from a 720x480 3000CBR mpeg. This bitrate is lower than you would want to go but again it does a great job of illustrating the differences.

This is the 3000CBR video encoded directly from the source AVI:


This is the 3000CBR video encoded to a 8000CBR MPEG then reencoded to 3000CBR MPEG:


There's more here: https://www.videohelp.com/forum/viewtopic.php?t=257651