The number after that is the level (without the decimal point) in hex, e.g.: 1F (31 in dec) is level 3.1 The first byte is usually 01 and is unimportant to this purpose, but after that should be one of the following: 42 E0 – for Baseline Profile Search the file for avcC in ASCII or 61 76 63 43 in hex. I confirmed this by following these instructions to change the profile and level bytes using a hex editor. The problem was that the video used the h.264 Main Profile level 5.1, while iOS only supports AVC level 3.1 (more info here). The only other thing I can think of is the number of reference frames (I've read the max is 3), but the re-encoded version has 4 so I figure that's probably not it.
GSpot's info about this one's container is different (could that be why this one works?): Container But I'd like to know what the problem with the original file is.įor comparison, here's the MediaInfo analysis of a re-encoded version I made (this one works): General
Advanced video codec iphone mp4#
Isom: MP4 Base Media v1 Ĭan anyone tell me why this video won't play? I know I can simply re-encode the video, and if I do, it plays fine on iOS. I ran the video through MediaInfo: GeneralĪlso, I ran it through GSpot and got some additional info: Container I've read that this means there's a problem with the video's encoding, but I'm not sure what the problem is. This video plays fine in a desktop browser, but on iOS devices I see an un-clickable Play icon with a slash through it. I have a video file encoded with h.264 that will not play on iOS, and I'd like to know why.
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