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Old 2nd March 2018, 10:54   #1426  |  Link
r0lZ
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Join Date: Jul 2003
Posts: 7,469
Thanks for the thanks, and welcome to the Doom9 forums, Actionable Mango.
Quote:
Originally Posted by Actionable Mango View Post
Would subtitles work on Frame Sequential video streams then? With FS, the frames would be "standard HD resolution" so it wouldn't have the problem you describe. Or is there a different problem with FS that prevents subtitles from working there?
Unfortunately, there is still a problem. With FS, the video stream contains one frame for the left eye, then one frame for the right eye, and so on. On the other hand, the subtitle streams contain subtitles starting at a specific time code and ending at another time code. There is no way to specify "this subtitle stream must be displayed on the left (or right) frames only", and therefore it is impossible to mux real 3D subtitles with a FS video.

Again, it's a problem related to the lack of a consistent 3D video standard, as it should be possible to add the necessary "left/right view" information in the header of the subtitle stream to inform the 3D players, but it's not the case. So, currently, muxing two different streams for the two eyes is useless. The player will pick only one, and display it in 2D.

However, like for full-SBS, it is possible to burn the subtitle stream on the image, during the encoding of the video stream (with the option on the last tab of BD3D2MK3D). It's not perfect, but that works with all players, and you can be sure that the subtitles will appear exactly where and when they should. The price to pay is that there is no way to hide the subtitles, for example when you play the audio in your native language.
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