Apple Shares 'Hermitage' Shot on iPhone Video, Previewing Over 5 Hours of Continuous Museum Footage Taken on a Single Battery Charge

[arkhanjel]

So they say its in 4K but Apple still haven't upload anything on Youtube in 4K, only 1080p. Not even 60fps videos. Since you are marketing a phones capabilities.

That probably has something to do with the fact that you can't view any 4K video on YouTube in Safari because of their codec.

 

[Superhai]

I'm saying that at somewhere after an hour in to shooting, my phone told me it couldn't record anymore as it had hit the 4gb limit.
And my apologies, I checked my timeline, this would have been an iPhone 4.

Ok, I know what is the issue here. I actually forgot that this used to be a problem, it did also affect professional equipment as well, not just iPhones. MP4 container (aka MOV or Quicktime format) used to use only 32 bit table for chunk offsets, which means file sizes over 4GB is not addressable in the MP4 file format. Now in the spec a 64 bit table is available, massively increasing max size of an QuickTime file. I guess the update of the file format spec and implementation must have been around the age of the iPhone 4/5. But you will likely come across older equipment with the same file size limitation when playing back mp4/qt files, and they will flat out refuse the 64 bit variant. Some equipment use multiple files and merge them together in the background.

 

[martinX]

What I've been doing since then is stopping the recording after a song and immediately hitting record again.

That's a pretty good habit to get in to. Until the recording is finalised, I'm always worried about any little glitch wrecking the whole thing. In addition, having smaller file sizes makes everything easier to handle at the outset.

 

[parfy]

Surprised they haven’t got lens flare issues with any bright lights that apple state is a ‘design limitation’ but is super evident on the iP11 pro

 

[H3LL5P4WN]

Ok, I know what is the issue here. I actually forgot that this used to be a problem, it did also affect professional equipment as well, not just iPhones. MP4 container (aka MOV or Quicktime format) used to use only 32 bit table for chunk offsets, which means file sizes over 4GB is not addressable in the MP4 file format. Now in the spec a 64 bit table is available, massively increasing max size of an QuickTime file. I guess the update of the file format spec and implementation must have been around the age of the iPhone 4/5. But you will likely come across older equipment with the same file size limitation when playing back mp4/qt files, and they will flat out refuse the 64 bit variant. Some equipment use multiple files and merge them together in the background.

See, I knew I wasn't crazy. Thanks for this.