Doesn't read chapters defined in moov.udata.chpl

[danhi]

While there is code that should read the chpl atom in moov.udata.chpl, it doesn't seem to work. Also the MP4GetChapters function doesn't seem to look for this. It would be great if MP4GetChapters would use the chpl data if the text track wasn't found.

[enzo1982]

Chapters in moov.udta.chpl are Nero chapters. MP4GetChapters reads only QuickTime chapters by default. To read Nero chapters, pass MP4ChapterTypeNero or MP4ChapterTypeAny as the 4th argument.

By the way, consider using the MP4v2 library from mp4v2.org resp. enzo1982/mp4v2. That's my attempt to revive the MP4v2 project and continue active development.

[danhi]

Wow! That was exactly what I needed. Plus it’s great to see someone reviving the library. I’ll have to check it out, because I’ve been maintaining my own private version for a while now, so I’ll have to figure out what changes I’ve made and if they would be acceptable in a public version. Thanks for much for the quick response. From: Robert Kausch ***@***.***> Sent: Sunday, March 27, 2022 12:04 PM To: TechSmith/mp4v2 ***@***.***> Cc: Dan Hinsley ***@***.***>; Author ***@***.***> Subject: Re: [TechSmith/mp4v2] Doesn't read chapters defined in moov.udata.chpl (Issue #69) Chapters in moov.udta.chpl are Nero chapters. MP4GetChapters reads only QuickTime chapters by default. To read Nero chapters, pass MP4ChapterTypeNero or MP4ChapterTypeAny as the 4th argument. By the way, consider using the MP4v2 library from mp4v2.org <https://mp4v2.org> resp. enzo1982/mp4v2 <https://github.com/enzo1982/mp4v2> . That's my attempt to revive the MP4v2 project and continue active development. — Reply to this email directly, view it on GitHub <#69 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAZT5NIEPNGEMS4YMWNXFB3VCC5K7ANCNFSM5RZAOPWA> . You are receiving this because you authored the thread. <https://github.com/notifications/beacon/AAZT5NIO7BT5GSHRBHIECWTVCC5K7A5CNFSM5RZAOPWKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOIBPXXBQ.gif> Message ID: ***@***.*** ***@***.***> >

[enzo1982]

I’ll have to check it out, because I’ve been maintaining my own private version for a while now, so I’ll have to figure out what changes I’ve made and if they would be acceptable in a public version.

Great! If you have any changes that you think would be good to have in the public version, feel free to open pull requests on enzo1982/mp4v2.