Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Wow this is ridiculous.
- Thread starter waloshin
- Start date
- Sort by reaction score
What settings did you use?
4.7MB/s is not that bad, but I assume, the video is only used for watching purposes?
4.7MB/s is not that bad, but I assume, the video is only used for watching purposes?
Yep just for viewing on a 1080p tv.
So if a movie was 1 hour 48 minutes Handbrake would convert the file to around 30 gigabytes ?
And there is your problem, the 100% quality rate. Bring that back down near the 60% default used in the Apple Universal preset.
https://trac.handbrake.fr/wiki/ConstantQuality
.
https://trac.handbrake.fr/wiki/ConstantQuality
.
It's the constant quality setting set to 100%, it is sufficient to use an constant bit rate between 60% and 70% or use a target size of whatever file size you want (2 to 3 GB for your example).
No clue. I'd suggest encoding just a single chapter at several different settings and compare the output files. Say 55, 60, 65 and 70, shouldn't take too long to do for a short clip. Watch the files on your TV and decide which one will give you the result you're looking for.
.
I'm curious about this as I'd never heard the advice before. I just tried it with a quick 2 chapter encode of Avatar (had the source rip handy) and leaving it on "Same as source" resulted in the smaller file.
.
.
I'm curious about this as I'd never heard the advice before. I just tried it with a quick 2 chapter encode of Avatar (had the source rip handy) and leaving it on "Same as source" resulted in the smaller file.
.
Depends on what the source is. If it's HD @60FPS it will be a larger filesize. When you change it to 29.97FPS NTSC you are actually removing half of the frames reducing the size of the file while maintaing most of the quality. NTSC is the default for a lot of video as is ATSC.
It gets more technical.
This is what makes most of iTunes "HD" movies look good on HDTV's.
Check out any movie you purchased from iTunes and you will see it's 29.97 FPS or maybe 30 FPS NTSC.
Read here
I believe it might have been a bluray rip and conversion so what would be better 29.97 vs 24p?
The xbox 360 does play .mp4 x264 at 24 frames per second.
Depends on the original video. If it's 60 FPS and blue-ray you might be better off with 24 FPS. I'm not sure how Blue-Ray encodes video.
I do HD TV .
If you can run the 64-bit version of Handbrake the job will go much faster.
It does on my core i7 iMac. Utilizes all 8 "cpu's"
Keep in mind I've seen some transcodes at 24 FPS come out all jittery.
I've never had a problem with 29.97. But like I said I do HD TV video. It's native format is 60 FPS @ 1280X720.
Waloshin, why are you re-encoding the video?
That's bad advice. You should almost always chose 'same as source'.
Not that I've checked every one, but I'd be willing to put down a substantial wager that almost all movies are 23.976 fps.
That's bad advice. You should almost always chose 'same as source'.
Not that I've checked every one, but I'd be willing to put down a substantial wager that almost all movies are 23.976 fps.
If you choose "same as source" and the video happens to be 60FPS you're going to wind up with a 2hr. movie thats 15GB.
Using the 29.97 it will be around 5GB.
[edit] I stand corrected.
I took a 5GB HD720P video that was a native mp4 @59.97 FPS and encoded it using both 29.97 FPS and the same framerate @ 59.97. Both files came out the same size. Around 1.05GB
Well I learn something new everyday. I've been using 29.97 NTSC on all my HD TV recordings. But in all honesty they both look the same.
[/edit]
Did you set the target bit rate the same for both?
That's a pretty arbitrary number, but ignoring that fact, why would twice the frame rate end up being three times the data rate? You'd be able to specify a larger key frame value, so you'd probably be looking a 60p being something like 1.7 times the data rate of 30p.
But my point was that 60p is most probably the least common frame rate for HD material at the moment, so it's ridiculous to blindly base your settings on the off-chance it might be 60p.
Really? They certainly don't to my eyes.