Inaccurate file splitting

[Blå_Mocka]

Am i the only one who to often get a Inaccurate cutt-result when using your file-splitter?

Perhaps 50 % of the videos i encounter doesnt hit excatley where i have setted the mark, the output-theme instead is to start 3-5 sec to earlie, allways to earlie never to late
The anoying thing is when this happends you trash the output and you wanna re-find a new start position 1 sec later prefereable, but this parti when the output allways start on exact same-and-to-earlie position often represent a pretty wide area..it can be 10 sec long stroke thath refuse to start when you hit it there..but if you whait 11 sec its all of a sudden accepted to start exactley there and not a sec earlier

what splitters do i use? Boilsoft AVI/MPEG/RM/WMV Splitter
and Easy Video Splitter, Boilsoft have this build-in operation to automaticly recompress the audio-stream from VBR-Audio if present on file, if you say no thanks to thath offer you will somethimes get a totally accurat splitting all of a sudden, but if you let it recompress there will be this splitting problem described above, acts totally against what it promise and somethimes its switched, but its something about the audio i think i have concluded
but the majority of the files who doesnt even have the VBR-problem allso splitt in-accurat from time to time depending like i said if certain locations in the movies happends to be in conflict with you interests, its wery hard to get a grip on the problem
Do i have 2 useless spilitters only perhaps? or do you have any theories about the audio?
or is it perhaps steered of wich codec i have installed?

[guns1inger]

What you need is a splitter that uses smart encoding. All the splitters you have trued split on the nearest i-frame. On an average xvid encoded file, this can be 300 frames apart, so if you split somewhere in between, it shifts to the nearest i-frame so it doesn't have to re-encode. This could be 3 - 4 seconds difference.

Try using something smarter. I like AVI Demux, which will tell you if it needs to enable smart encoding, and handles VBR MP3 quite well.

You could also use virtualdub 1.7.7 or newer.

[Blå_Mocka]

What you need is a splitter that uses smart encoding. All the splitters you have trued split on the nearest i-frame. On an average xvid encoded file, this can be 300 frames apart, so if you split somewhere in between, it shifts to the nearest i-frame so it doesn't have to re-encode. This could be 3 - 4 seconds difference.

Try using something smarter. I like AVI Demux, which will tell you if it needs to enable smart encoding, and handles VBR MP3 quite well.

You could also use virtualdub 1.7.7 or newer.

thanks i didnt know VD could do thath

this AVIdemux i didn't find thath "start cutt" button i was looking for, but i guess you just mark the start and end and save a output just like VB right? the big problem i have with AVIdemux now is thath the splitted output becomes extension "File" only, not a AVI, and i atleast can't find the settings to prevent if from become "file" ? thath main-window setting "format" is allready auto-sett to AVI, so its weird to me

(I wonder what this tool can do moore? i have a AVI file thath shows wrong play-length-tide, can this fix it like VideoRedo can fix MPEG in just one klick perhaps? and another AVI of mine are full of glitches and refuse to play the picture throu certain areas, and all converters fail with it, if this can fix tell me how to klick)

[guns1inger]

AVI Demux doesn't put the file extension on for you. Just call your file video.avi, or rename (F2) it afterwards.

You can try loading it in AVI Demux, saying yes to any prompts regarding time maps etc, then saving out again with both video and audio in Copy mode. Make sure you add the .avi extension to the file name when you save though.

[Baldrick]

Just add the .avi extension yourself.

[Blå_Mocka]

Ok, is there some similar smart encoding splitters but for MPEG?

both VD and the other doesnt accept thath offcorse

[guns1inger]

Womble or VideoRedo.

Most (all ?) of the free cutters require elementary streams, so you have to demux, cut, then remux. You might try tmpgenc plus and the mpeg tools that ship with it. I don't know if they continue to work after the 14 day trial expeires though.

AVI Demux can also do mpeg-2 encoding, but I have never tried it for file splitting.

[Blå_Mocka]

Womble or VideoRedo.

Most (all ?) of the free cutters require elementary streams, so you have to demux, cut, then remux. You might try tmpgenc plus and the mpeg tools that ship with it. I don't know if they continue to work after the 14 day trial expeires though.

AVI Demux can also do mpeg-2 encoding, but I have never tried it for file splitting.

thanks


I have been pretty succesfull with AviDemux, the only issue i have is thath when preview the cut places there is no sound, cause the implemented player simply dont play sound, so you have to go for the image rather than dialoge..wich can be troublesome somethimes
can sound be activated?

However the goal with bumping this thread is to allso find out if there is any wmv-splitters, none of the above accept it..wmv files allso goes after nearest frame in comersial-splitters obviosly

is ther any fan-wmv splitters?

[Blå_Mocka]

Now i have a AVI here thath makes all Virtualdub-variants to crasch as soon as i klick on the play window to be able to markt the right cutt-places
is thath possible to fix

Otherswise im stuck with Avidemux, my problem with thath app as a splitter..is thath when you say yes to everything, (its acually enough with the smart encoding prompt) the output gets a pretty big quality loss, when comparing with the input with vidoeinspector,
i can't accept thath amount of quality loss in splitting unfortentley is thath perhaps the condition for it to be able to smart encode?
if so i retire this smart encode project and accept thath inaccuracy

let me know please

[guns1inger]

There should be no quality loss if you do it properly

[Blå_Mocka]

There should be no quality loss if you do it properly

Then there must be some settings thath will be able to prevent it?
even i cant do it wrong on a fresh install..i just input a file, choose marks, save as, say yes to smart encoding, and the output get worse quality on thoose 3 important quality marks in videoinspector

[Blå_Mocka]

There should be no quality loss if you do it properly

1. How does it become properly? could you or someone give me a step by step walktrought please
manuals thath comes with programs arent enough..atleast not for me

The bitrate and the b/px quality is accually getting lower on the outputs in all Virtualdub-appl allso

2.wmv smart encoding?