Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Editing › Background Processes
- This topic has 15 replies, 1 voice, and was last updated 13 years, 11 months ago by Anonymous.
- May 5, 2006 at 8:44 AM #41029AnonymousInactive
I am new to this game and have just encoded my first full length feature and was horrified to find it took nearly 15 hours for a 1.45h clip.
So my question is, I want to dedicate all my processor power to the task of Transcoding, so how do i do this.
In the old Win ME, i could simply CTRL + ALT + DEL and then shut down processes that i dont need running to get more power, but i am using XP now and i dont have a clue what all the things are running in the Sys Tray.
Anyone got any ideas, which ones must i leave on? I switch the rest off.
You’re not going to gain that much by shutting down background process. Just because you see them list there doesn’t necessarily mean that they are currently doing anything. They could just be loaded in memory and that’s why you see them there. All you can really do is make sure that you don’t have any other programs running especially any virus software.
By looking at the amount of time it took, I would venture to say that you must have did a 2-pass encoding job in which case it will take twice as long as a single pass. I always set those up to run over night when I’m sleeping. Other influences would be compression settings but even bigger than that would be your CPU speed. Your CPU is the thing that is doing all of the work and if you have a slower one, it will just take that much longer. That’s just how it is.
I transcoded a 1h 20 min wedding video in just under an hour. There were minimal transitions and video filters applied so the processor just had to transcode straight video. I also have a dual core Pentium D 2.8GHz processor with 2Gig if RAM. As I explained to you before, transcoding will take a long time, especially if the video content has filters, titles, transitions, and such added to it. I don’t know what transcoder your using but I think the newer ones run a bit quicker.
The bottom line is that you can’t squeeze blood out of a stone. Try as you might, it just won’t happen. I transcoded a 1h 50min video that had a color correction filter applied to the whole thing and it took my older P3 1G with 256MBs of RAM 26 Hours! Sorry but thats the way it is. Get use to it.
I sort of kind of agree with you but I was under the impression that he was taking a fully rendered AVI file and transcoding that to an mpeg file via Encore (I think that’s what he’s using) in which case filters and transactions dont matter.
I think youre talking about rendering video footage on a timeline with all of the added in filters and what have you in which case I totally agree with you. Blurs, color correctors and even that stinking 3D filter used for different 3D movements are the worst.
I guess when I hear or say transcoding (encoding), I view that term meaning compressing and re-writing into a completely different mpeg style file format.
I view the term rendering as manipulating or altering existing video footage to achieve the newly added desired affect(s). In the end you still have an AVI file.
If he’s trying to do both at the same time, then this is the reason it’s taking a month of Sundays to encode everything. All of the articles and recomendations I read say avoid doing both at the same time because it’s very taxing and time consuming on the CPU and could lead to problems such as crashes or overheating even.
If he exported his timeline as a single AVI file and is letting Encore transcode it, it should be faster than 15 hours, unless its a 2 pass like you said. Or if he only has 1 hard drive. Or if its an external hard drive (though those are getting faster).
I let my system render and transcode at the same time. I’ve never had a crashing problem. Rendering alone can take quite some time and then to have to transcode it, seems to take just as much time in the long run. The only real difference is that once rendering is done, you have to interact with it again to transcode it. I set it and forget it overnight. In the morning, its done.
Every system is different and we could be going on for months trying to get it a little bit faster. I was the same way when I started making DVDs. Ultimately, I accepted the long transcode times and planned for it. My new system is faster, but I still plan on long transcode times just to be safe.
I agree with you on his transcode time. I’m thinking he has an under-powered CPU.
Boy you must have a super rocket of a system then. When I’m editing in Premier Pro my PC can’t really play an un-rendered timeline with certain applied filters and effects very smoothly. 😕 I have a friend that has a faster PC and even his hesitates a little bit here and there.
Personally I never do both because I want to see what my finished rendered AVI file looks like at full speed on a full screen (via Media Player) before I go ahead and transcode it. Call it a double check if you will. The last thing I want to do is waste 5 or 10 hours transcoding and then find out that a title was cut off or maybe the timing on something was off or I didn’t apply a de-interlace setting on a frozen clip or something.