Animated Subpictures

[Pentajet]

I managed to make an animated subpicture for a DVD using Scenarist .sst files but while this plays fine on PowerDVD the animated subpicture is jerky and frames are skipped on most players including VLC. Any suggestions?

[manusse]

Hi,

How many images per seconds do you use for your animation?

Cheers
Manusse

PS: You'd better post in the subtitle forum

[Pentajet]

I am using 25 frames per second. Too much, maybe? What would you suggest?

[mpucoder]

Make sure there are no stop codes in the subpictures. For .sst files this means set the stop time to a minus (-) sign.
#########################################################
SP_NUMBER START END FILE_NAME
n HH:MM:SS:FF HH:MM:SS:FF filename with stop code
n HH:MM:SS:FF - filename without stop code

[rik1138]

Are these subtitles or subpictures? As in- are they animated buttons, or just a subtitle stream on the feature itself? If it's animated buttons, you can only have 1 image per 1/2 second of video.

I think there's a limitation with subtitles as well, but not as strict. I don't think players are required to be able to play back a different subpicture image every frame.

Rik

[manusse]

I've also made such animated subpicture streams using a different method (http://forum.doom9.org/showthread.php?t=139478). When I made some tests, I noticed that software player could hardly play my subpicture stream but my Stand Alone could. I think it's a matter of having the time to process each frame in real time and overlay it on the video.

Maybe you could try something like 5 fps first, if it works then 10fps, then 15fps... If you have time.

Also if you could demux your sub stream (use pgcdemux for example) and could post your sup file, I would test it on my SAP.

Cheers
Manusse

[Pentajet]

Thanks for all your responses:)

These are animated "subtitles" (an animated cartoon character appearing on screen during the main movie to give information on the dubbers of the cartoon) not animated "buttons".

I followed your advice and tried 6fps and removed the end codes (yes, I did put the end codes in the file previously). It now works as it should, at least on all the players I tested. Thanks again everyone.