My friend has a iPhone 4s, iOS 7.1.1, I have the 5s, iOS 7.1.2.
He takes short videos (1min to 3min 40s in length) using his iPhone and no attachments in bright light. They are "macro" in that the subjects are often close up, but not out of focus.
He then texts them to me. Some of them are quite spectacular, file sizes ranging from 6megs to 16megs. The total bit rate on the movies range from 500-880 kbps.
However, recently he sent me some longer ones that were about 3min, but the file size is only 1.2 megs or so, and the total bit rates were only 40-43 kbps. There was no clipping.
It's not due to video length or size, because I checked some older vids, about 1 min in length, and some of those have low bit rates as well.
What I don't understand are the following:
1. The user is only pressing record for all the videos, why are the bit rates sometimes good (resulting in great vids), and sometimes so low there is pixelation preventing the viewer from figuring out what the video is (low bit rate) ??
2. How come the low bit rate vids look on my friend's phone, but not on mine?
All the user is doing is pressing record and stop. I don't recall which camera he used, the front or rear facing camera. Either way, he's used the same camera for all videos I'm told.
Thanks!
He takes short videos (1min to 3min 40s in length) using his iPhone and no attachments in bright light. They are "macro" in that the subjects are often close up, but not out of focus.
He then texts them to me. Some of them are quite spectacular, file sizes ranging from 6megs to 16megs. The total bit rate on the movies range from 500-880 kbps.
However, recently he sent me some longer ones that were about 3min, but the file size is only 1.2 megs or so, and the total bit rates were only 40-43 kbps. There was no clipping.
It's not due to video length or size, because I checked some older vids, about 1 min in length, and some of those have low bit rates as well.
What I don't understand are the following:
1. The user is only pressing record for all the videos, why are the bit rates sometimes good (resulting in great vids), and sometimes so low there is pixelation preventing the viewer from figuring out what the video is (low bit rate) ??
2. How come the low bit rate vids look on my friend's phone, but not on mine?
All the user is doing is pressing record and stop. I don't recall which camera he used, the front or rear facing camera. Either way, he's used the same camera for all videos I'm told.
Thanks!
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