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| "Brightness Issues with H.264 QuickTime Movies" fixes http://forums.shinywhitebox.com/viewtopic.php?f=4&t=1321 |
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| Author: | Torley [ Wed Dec 17, 2008 12:51 am ] |
| Post subject: | "Brightness Issues with H.264 QuickTime Movies" fixes |
Ever export a H.264 movie and its gamma looks too light? I've seen this come up several times on these forums dating back months — and possibly longer. I noticed it myself recently when recording on iShowU HD Pro, but also affects Stomp's output by way of QuickTime. It appears to be a rather pervasive yet tricky issue, so have a look: » http://provideocoalition.com/index.php/ ... movies/P0/ Neil, maybe this will be of help pointing future people wondering about it? So they don't mistakenly think it's because of your software. :) |
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| Author: | neil [ Thu Dec 18, 2008 9:21 pm ] |
| Post subject: | Re: "Brightness Issues with H.264 QuickTime Movies" fixes |
I should experiment with this more - thank you for the link. Are you essentially saying that if I get iShowU (or even Stomp!) to strip the Gamma tag - that it could make a +ve difference most of the time? I suspect that stripping that tag won't be "that" hard (har har, well see - it's QT after all). |
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| Author: | Torley [ Fri Dec 19, 2008 2:02 am ] |
| Post subject: | Re: "Brightness Issues with H.264 QuickTime Movies" fixes |
I hadn't explicitly said that yet, but YES, if you could experiment and get Stomp to encode with the correct gamma — you'd solve a long-in-the-tooth pain which would also be a big boon to use Stomp! The gamma-shift is is a BIG detriment to exporting in otherwise-awesome H.264. No other conversion package I know of works elegantly to address this. Let me convince you further with my human story: I bought Stomp because you rock, but because of this issue (I haven't managed to get that other gamma tag stripper to work), I still export to H.264 from QuickTime Player Pro on Windows. Being able to do it as a batch from Stomp would accelerate my video production process greatly. Some background: I've made 230+ video tutorials which have nearly 4 million views ( http://secondlife.com/video ), and aside from hard numbers, they've made 1,000s of people happy. So by solving this so I can work quicker, your fine work on Stomp would result in even more delight! Naturally, I'd be compelled to sing your praises. I don't have my hopes up for Apple solving this anytime soon, and I have faith in you, Neil. =^_^= |
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| Author: | neil [ Fri Dec 19, 2008 7:43 pm ] |
| Post subject: | Re: "Brightness Issues with H.264 QuickTime Movies" fixes |
OK, I've made a note. I emailed the creators of the other tool to see if they would share the source. *If* it's reasonable simple to do it sounds like a no-brainer thing to add to ALL of the products. I imagine removing that atom from the QT movie itself would be a painless operation (hahahhaha. doing something in QT being painless. I crack me up). Thanks for the +ve comments! |
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