[BUG] Apple ProRes MOV with CEA-608 track has wrong offset

[FossPrime]

• [x] I am an active contributor to CCExtractor.

Necessary information

• What platform did you use? - [x] Linux

3 minute master file: https://storage.googleapis.com/learn-video/Testing/Teeny%20Test.zip Raw subs track: raw eic track dump.zip

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This has stumped me. Decoding Final Cut CEA-608 from Master ProRes 422 MOV exports to srt WORKS fine... except the offset is all wrong... the subtitles start exactly at 00:00:01,569. In the sample video the subs should start showing 62550ms into the video... subs are early by a minute.

The only error is this:

Processing track 4, type=clcp subtype=c608
100%  |  59:33Processing track 5, type=text subtype=text
Unsupported track type text:text! Please report.
  0%  |  00:00
Unsupported track type text:text! Please report.
  3%  |  00:51

Full: https://pastebin.com/Y9gndLw4

[cfsmp3]

@rayfoss does this happen with all files, or just a specific one? Of all of them, is it all of them in general or all of them only if they come from Final Cut? Do the subs play in sync when played with VLC or ffplay?

[FossPrime]

Happened with all of them... They all come from final cut. We needed to use that format for DVD authoring :/

On Fri., Nov. 8, 2019, 13:08 Carlos Fernandez Sanz, < [email protected]> wrote:

@rayfoss https://github.com/rayfoss does this happen with all files, or just a specific one? Of all of them, is it all of them in general or all of them only if they come from Final Cut? Do the subs play in sync when played with VLC or ffplay?

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[cfsmp3]

But is this problem specific to CCExtractor or also common to VLC, etc? Maybe final pro is just breaking the 608 data?

On Fri, Nov 8, 2019 at 11:30 AM Ray Foss [email protected] wrote:

Happened with all of them... They all come from final cut. We needed to use that format for DVD authoring :/

On Fri., Nov. 8, 2019, 13:08 Carlos Fernandez Sanz, < [email protected]> wrote:

@rayfoss https://github.com/rayfoss does this happen with all files, or just a specific one? Of all of them, is it all of them in general or all of them only if they come from Final Cut? Do the subs play in sync when played with VLC or ffplay?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub < https://github.com/CCExtractor/ccextractor/issues/1095?email_source=notifications&email_token=AAGV4LHDK2PGCCTB7YP3LOTQSW2MTA5CNFSM4HXSXVNKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEDTCEWI#issuecomment-551952985 , or unsubscribe < https://github.com/notifications/unsubscribe-auth/AAGV4LFIXBTKLC7YSXBESXLQSW2MTANCNFSM4HXSXVNA

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[FossPrime]

Quicktime is the only player I know who can read it... aside from compressor/final cut. Which is extra lame. When it does, it is accurate... I can also use compressor to convert them, those are also accurate... But that's all apple stuff that won't scale

[FossPrime]

I would agree... if Quicktime and every Apple product that supports it didn't work seamlessly :/