View Full Version : What bitrate does Smugmug convert your videos to?
Thronsen
Jun-09-2009, 10:58 AM
Just curious, when Smugmug converts your uploaded file, what bitrate does it convert them to? Any other restrictions?
To save on bandwidth Im trying to render my videos as close to the eventual Smugmug files as possible. It doesnt make sense to upload filesize with a bitrate of 15 if it is then converted to 5 or whatever.
Thanks.
nigelbb
Jun-09-2009, 01:15 PM
Full HD 1920x1080 around 7.5 Mbps
HD 1280x720 about 3.2Mbps
Mid-Def 960x540 about 2Mbps
iPhone/DVD 640x360 about 1.4Mbps
Web 320x180 around 660Kbps
I generally upload files with a bit rate of 8Mbps for 1920x1080 & let SmugMug take it from there. You can see the results here www.barkersvideo.com
docwalker
Jun-10-2009, 05:14 AM
Bitrate is one of the reasons that so many folks have trouble uploading 10 minute HD videos. They do not realize that some cameras use ~20Mbps or higher bitrates. Dropping that using an editor or converter to just around the level we convert to really helps. I just did one and also used I think 8Mmps. The file size went from 1.2 gigs to just under 600Mb. :barb
nigelbb
Jun-10-2009, 01:26 PM
Bitrate is one of the reasons that so many folks have trouble uploading 10 minute HD videos. They do not realize that some cameras use ~20Mbps or higher bitrates.20Mbps? Peanuts! My Canon 5D Mk II creates 40+Mbps H.264 files which get converted to ProRes at 160+Mbs & thus 4x the file size before editing in Final Cut.
peestandingup
Jun-10-2009, 01:39 PM
20Mbps? Peanuts! My Canon 5D Mk II creates 40+Mbps H.264 files which get converted to ProRes at 160+Mbs & thus 4x the file size before editing in Final Cut.
Whats your point?? He did say "or higher".
BTW, how well does that big expensive Mark II you're bragging about do onboard image stabilization?? Oh right, it doesnt.
Not dogging your equipment, its a fine dSLR, but a real video camera it aint.
nigelbb
Jun-10-2009, 11:25 PM
Whats your point?? He did say "or higher".
BTW, how well does that big expensive Mark II you're bragging about do onboard image stabilization?? Oh right, it doesnt.
Not dogging your equipment, its a fine dSLR, but a real video camera it aint.I wasn't bragging just pointing out by my personal example that video bit rates can be enormously higher than those that SmugMug will play out. I also want to highlight the point that I have made in repeated posts that it is a very good idea before uploading to compress your videos to a bit rate around that which SmugMug will use.
Amongst other great qualities the combination of great quality optics, a full frame sensor, film-like shallow depth of field & picture quality unobtainable except in equipment several times the price mean that many video professionals (myself among them) are using the 5DII for video work despite the limitations that it does have.
However lack of OIS is not one of those limitations. OIS is a feature of consumer & lower end professional video cameras. At the higher end on-board stabilisation if used at all is a feature of the lens not the camera. The Sony EX3 doesn't have OIS, the Red One doesn't have OIS. A shoulder mount & some tweaking in post-production in many cases obviate the need for on-board stabilisation for run & gun shooting. If you are not moving around then a tripod has always been the best solution for stabilisation.
docwalker
Jun-11-2009, 04:41 AM
By the way, I am shooting with the 5d MkII as well :thumb I do have a couple others that I can and do use occasionally.
Thronsen
Jun-12-2009, 04:40 AM
Is there a way to test that Full HD is 7.5 Mbps?
Or find out what other compression is being done?
I just took a file, taken from a HFS100 at 1920x1080 and 24 Mbps. I uploaded it to Smugmug, and downloaded it again. The file was 6.7 meg when it returned.
I took the same file and rendered it on Sony Vegas, with a bitrate of 4 Mbps. CABAC, 29.970, and AAC. The resulting file was 8.3 meg.
Obviously the file size doesnt matter, but relative to each other its odd that the 7.5 Mbps is 20% smaller then the 4 Mbps.
docwalker
Jun-15-2009, 03:48 AM
The bitrate I think is an estimate. Every video can be different. As to why one was more than another... :dunno
The 24 Mbps was way more than needed. So the converter lowered it to what was needed.
How to check it? You might be able to turn on the Flash Player Debug mode. It should tell you the information. But, it is a pain to turn off once turned on.
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