Re: question for hive-mind viz. Apple error message on valid epub

AV1 is very much the best codec you can use for video these days (and its
sibling AVIF for images), while Opus is your best option for human narrated
audio.

Le jeu. 19 déc. 2024, 15:43, <matt.garrish@gmail.com> a écrit :

> > that has passed validation through epubcheck but is being rejected by
> Apple
>
>
>
> Just to address this part, video codec support is not a requirement in
> epub 3. You can add any video type you want, but there’s no guarantee a
> reading system will play it back. Apple has always supported mp4, so that
> would be why they have different acceptance rules from a general epubcheck
> validation.
>
>
>
> Maybe in the upcoming epub revision we should take another look at this
> issue and see if we can break the stalemate and at least get one supported
> codec? I don’t know where webm support is at, but isn’t mp4 pretty broadly
> supported now?
>
>
>
> Matt
>
>
>
> *From:* kerscher@montana.com <kerscher@montana.com>
> *Sent:* December 19, 2024 2:18 AM
> *To:* 'Ruth Tait' <artbyrt@gmail.com>; public-epub3@w3.org
> *Subject:* RE: question for hive-mind viz. Apple error message on valid
> epub
>
>
>
> Hi,
>
>
>
> Might it be the webm files? They may have changed what they accept,
> because you say you submitted them in the past. Was the size of the video a
> problem? Large video files have been known to cause rejections.
>
>
>
> Let us know how the problem is resolved.
>
>
>
> Best
>
> George
>
>
>
>
>
> *From:* Ruth Tait <artbyrt@gmail.com>
> *Sent:* Wednesday, December 18, 2024 5:28 PM
> *To:* public-epub3@w3.org
> *Subject:* question for hive-mind viz. Apple error message on valid epub
>
>
>
> Hello epub 3 experts,
>
>
>
> Our small publishing group is attempting to upload to a distribution org
> an epub that has passed validation through epubcheck but is being rejected
> by Apple with this message:
>
>
>
> "The provided file has failed validation at Apple. As a result, Apple
> cannot process any metadata/content updates or activate this content for
> sale without action on your part. Please validate the ePub and correct any
> errors or issues detailed below:
>
>
>
> ERROR ITMS-9000: The video file(s) in the book must be H.264 and end with
> a .MP4 or .M4V file extension. More information about video encoding can be
> found in the Apple Books Asset Guide in the Deliver Your Content module on
> iTunes Connect. Unsupported file found :
> video/unapologetically-jackie-h264-360p-2398-stereo-121222-vs6ntw.webm"
>
>
>
> The videos provided within the book are .mp4 and .webm formats. I have
> previously submitted to Apple similar books with embedded video without an
> issue. Searching for more information on the FLAG ERROR ITMS-9000 doesn’t
> give me any more enlightenment to the problem.
>
>
>
> Anyone have an idea what could be the issue?
>
>
>
>
>
> ruth tait
> https://www.artbyrt.com
> O: 613 604 2781
>
>
>
>
>
>
>