Enought Space in the ORG

[Corran]

Whenever I approve or reject large upload requests I look at primarily at the run time of the video than the resolution.

If users want to upload high res, 100% quality, first-pass encodes, then they should get their own hosting and use the direct or indirect links.

Now that we have h.264 and aac audio codecs to encode with, it is possible to standard definition videos down to 10MB per minute of footage and still look good. Considering that fansubbers can manage to get fairly good looking encodes of full length, 720p shows under 250MB, AMVs should definitely be able to do the same for less than 100MB.


On a personal note, it always annoys me to see a 4 minute long video uploaded that is 99.9MB in size... Anyone that has been on the forums as long as I have should know I love high quality AMVs and like the technical side of video editing such as avisynth pre- and post-processing and video compression, but honestly there is a limit as to how much it matters. The trick in compressing videos isn't to the make them as perfect to the original as possible based on the org's 100MB limit, but instead finding the perfect trade-off in filesize and quality while still maintaining very good quality. Until you can do that, you still don't know how to effectively utilize the encoding tools at your disposal.

btw, framerate doesn't really matter much when you are compressing with an inter-frame codec such as xvid or x264 as the changes between the frames get smaller the as the framerate increases. The less change, then the less data that needs to be stored per frame. In the end, with the right settings, you can get a 60fps video down to roughly around the same filesize as a 30fps video without sacrificing much quality.

http://www.animemusicvideos.org/guides/avtech/xvid.html
http://www.animemusicvideos.org/guides/ ... 64gui.html

[CrackTheSky]

uhh... since Crack the Sky so very tactfully left out my final sentence when I was quoted... let me just make clear it was a crack at Google Translate, which is universally acknowledged to be terrible. >.> <.<

Megamom knows I'm joking.

[dazza1008]

uhh... since Crack the Sky so very tactfully left out my final sentence when I was quoted... let me just make clear it was a crack at Google Translate, which is universally acknowledged to be terrible. >.> <.<

Megamom knows I'm joking.

You left out the "Wow, the Spanish really speak differently. " bit in my quote. Thought it might be deliberate. *shrug*

[Zarxrax]

btw, framerate doesn't really matter much when you are compressing with an inter-frame codec such as xvid or x264 as the changes between the frames get smaller the as the framerate increases. The less change, then the less data that needs to be stored per frame. In the end, with the right settings, you can get a 60fps video down to roughly around the same filesize as a 30fps video without sacrificing much quality.

Wrong. While one would think that to be the case, my experience shows that doubling the framerate will nearly double the filesize, or at least by 50% or so. Of course it varies depending on the content and the type of motion.

[Corran]

btw, framerate doesn't really matter much when you are compressing with an inter-frame codec such as xvid or x264 as the changes between the frames get smaller the as the framerate increases. The less change, then the less data that needs to be stored per frame. In the end, with the right settings, you can get a 60fps video down to roughly around the same filesize as a 30fps video without sacrificing much quality.

Wrong. While one would think that to be the case, my experience shows that doubling the framerate will nearly double the filesize, or at least by 50% or so. Of course it varies depending on the content and the type of motion.

hmm... A while back I was discussing this with Nostromo and re-encoded his video for him as an example. Granted, I was only trying to show him he could get it under 100MB and don't remember if I actually tried to encode a 30fps version of it at the same time. I shouldn't have made it sound like I was spouting fact...

[Willen]

btw, framerate doesn't really matter much when you are compressing with an inter-frame codec such as xvid or x264 as the changes between the frames get smaller the as the framerate increases. The less change, then the less data that needs to be stored per frame. In the end, with the right settings, you can get a 60fps video down to roughly around the same filesize as a 30fps video without sacrificing much quality.

Wrong. While one would think that to be the case, my experience shows that doubling the framerate will nearly double the filesize, or at least by 50% or so. Of course it varies depending on the content and the type of motion.

hmm... A while back I was discussing this with Nostromo and re-encoded his video for him as an example. Granted, I was only trying to show him he could get it under 100MB and don't remember if I actually tried to encode a 30fps version of it at the same time. I shouldn't have made it sound like I was spouting fact...

For true 60 fps video where a great majority of the pixels are changed from frame to frame (or else why bother), it should be roughly double the file size of an equivalent 30 fps video.

That being said, unless it's on the long side of length (>5 minutes), a 720/30p H.264 video should easily come in under 100 MB (unless the audio is uncompressed ).