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View Full Version : What two IDs for one subpicture means?


jmartina
23rd February 2003, 23:38
Anyone knows why some subtitles have two IDs:

SubPicture 1: Language (2-bit rle ) (ID: 0x20)
SubPicture 2: Language (2-bit rle ) (ID: 0x21, 0x22)
SubPicture 3: Language (2-bit rle ) (ID: 0x23, 0x24)

DVD2DVDR handles them OK, but most other programs do
separate files for each ID.

After authoring in IFOEdit sometimes adding just one ID is OK,
but sometimes, subtitles runs only first half of the movie,
and adding both IDs for same subpicture does not solving the problem.

As I said DVD2DVDR solves this, but I would like to have full control.

Please do not post assumptions, answer only if you know what two IDs
means, even if you don't know how to handle them.

mpucoder
24th February 2003, 04:28
There can be as many as three subpicture IDs for each subpicture if the video is 16:9. They are for different display modes, widescreen, letterboxed, and P/S. Look in http://www.mpucoder.com/DVD/pgc.html#hdr at the PGC_SPST_CTL table.