Detailed MP4 Specification
I'm encoding some videos for the iPhone. Have done this very successfully before but there are a few exceptions. iTunes complains that it can't sync some videos because they "cannot be played on this iPhone".
From jigging about on google it seems only a restricted H.264 profile is supported.
It is frustrating that I can't find any official documentation on what iTunes requires/expects in terms of video profile.
I have one particular video that will sync successfully if I cancel the encode halfway and leave the file incomplete, but will not sync if the encode is completed. More specifically, I'm using ffmpeg to perform the encode.
It would be great if somebody could outline what encoding options need to be used for H.264, with regards to the supported profile(s), i.e. CABAC on/off, partition sizes, etc.
Hearing it from "the horses mouth" so to speak, would restore some faith in the (so far) abysmal experience I've had with Apple support.
From jigging about on google it seems only a restricted H.264 profile is supported.
It is frustrating that I can't find any official documentation on what iTunes requires/expects in terms of video profile.
I have one particular video that will sync successfully if I cancel the encode halfway and leave the file incomplete, but will not sync if the encode is completed. More specifically, I'm using ffmpeg to perform the encode.
It would be great if somebody could outline what encoding options need to be used for H.264, with regards to the supported profile(s), i.e. CABAC on/off, partition sizes, etc.
Hearing it from "the horses mouth" so to speak, would restore some faith in the (so far) abysmal experience I've had with Apple support.
-, Other OS
