Converting Bluray disc subtitles - Page 2

jokin · 6th May 2007, 07:33

ok now we can extract is there any way to put them on a video via avs?

Pelican9 · 6th May 2007, 12:06

Quote:

Originally Posted by drmpeg

Here's an update to xport that demuxes the subtitle (Presentation Graphics) stream.

http://www.w6rz.net/xportpgs.zip

An extra parameter has been added to select the subtitle stream.

xport -h movie.m2ts 1 1 1 1

Output filename is bits0001.pgs and the -u option dumps the PTS.

Ron

You are very fast!
Thanks!

The -h worked well and create a huge pgs (43MB).
How does the -u option work?

Code:

Transport Sync Error, skipped 4 bytes, at 3218297
Transport Sync Error, skipped 4 bytes, at 3218298
Transport Sync Error, skipped 4 bytes, at 3218299
Transport Sync Error, skipped 4 bytes, at 3218300
Transport Sync Error, skipped 4 bytes, at 3218301
Transport Sync Error, skipped 4 bytes, at 3218302
Transport Sync Error, skipped 4 bytes, at 3218303
Transport Sync Error, skipped 4 bytes, at 3218304
Transport Sync Error, skipped 4 bytes, at 3218305
Transport Sync Error, skipped 4 bytes, at 3218306
Transport Sync Error, skipped 4 bytes, at 3218307

Is it possible to insert the PTS information to the subtitle stream and write a (semi) compatible .sup file?
The .sup file contains 10 extra byte before every subtitle
'SP',PTS(4bytes),0x00000000

Edit:
We can create a new file format for BD subtitles. We can use other two letters instead of 'SP' (for example 'BD' or something), and the 4 bytes long PTS value, and the subtitle segment data.

Pelican9 · 6th May 2007, 12:23

Quote:

Originally Posted by Rectal Prolapse

BTW Pelican9, you implied that you already knew the format - is that true? If dmz01 can write a subtitle extractor then he must know the format already?

Yes.
No.

Quote:

Originally Posted by Rectal Prolapse

Is there a reason why this information isn't more widely known?

Yes. This information is confidental.

drmpeg · 6th May 2007, 12:39

Quote:

Originally Posted by Pelican9

You are very fast!
Thanks!

The -h worked well and create a huge pgs (43MB).
How does the -u option work?

Code:

Transport Sync Error, skipped 4 bytes, at 3218297
Transport Sync Error, skipped 4 bytes, at 3218298
Transport Sync Error, skipped 4 bytes, at 3218299
Transport Sync Error, skipped 4 bytes, at 3218300
Transport Sync Error, skipped 4 bytes, at 3218301
Transport Sync Error, skipped 4 bytes, at 3218302
Transport Sync Error, skipped 4 bytes, at 3218303
Transport Sync Error, skipped 4 bytes, at 3218304
Transport Sync Error, skipped 4 bytes, at 3218305
Transport Sync Error, skipped 4 bytes, at 3218306
Transport Sync Error, skipped 4 bytes, at 3218307

Is it possible to insert the PTS information to the subtitle stream and write a (semi) compatible .sup file?
The .sup file contains 10 extra byte before every subtitle
'SP',PTS(4bytes),0x00000000

Try:

xport -hus movie.m2ts 1 1 1 1

Ron

Pelican9 · 6th May 2007, 12:43

Quote:

Originally Posted by drmpeg

Try:

xport -hus movie.m2ts 1 1 1 1

Ron

I've tried, but nothing changed in the file.

drmpeg · 6th May 2007, 13:52

Quote:

Originally Posted by Pelican9

I've tried, but nothing changed in the file.

I meant just to get rid of the error messages and dump the PTS. I'll add the PTS header tomorrow (left coast time).

Ron

Pelican9 · 6th May 2007, 14:08

Quote:

Originally Posted by drmpeg

I meant just to get rid of the error messages and dump the PTS. I'll add the PTS header tomorrow (left coast time).

Ron

Great! Thanks again.

But I've thought about the header, and it would be better to use another two letters instead of 'SP', because the structure is quite different and it would be easier to program.

dmz01 · 6th May 2007, 15:09

Quote:

Originally Posted by Rectal Prolapse

If dmz01 can write a subtitle extractor then he must know the format already?

Quote:

Originally Posted by Pelican9

No.

Pelican9 is correct. I don't know the format. You do not need to know a specific format information just to extract it from a well known container.

Rectal Prolapse · 6th May 2007, 18:51

Thanks drmpeg!

Pelican9 · 6th May 2007, 23:47

SUPread 0.4 is ready to read BD subtitles...

Don't try to download, it's not available yet. I'm waiting for drmpeg's new xport version with PTS info.

drmpeg · 7th May 2007, 07:02

Here's the update:

http://www.w6rz.net/xportpgs.zip

Make sure you clear your browser cache to get the latest. Files are dated 5/6/2007 at 10:55 PM.

I chose to use "PG" (for Presentation Graphics) instead of "SP".

Ron

Pelican9 · 7th May 2007, 09:36

Quote:

Originally Posted by drmpeg

Here's the update:

http://www.w6rz.net/xportpgs.zip

Make sure you clear your browser cache to get the latest. Files are dated 5/6/2007 at 10:55 PM.

I chose to use "PG" (for Presentation Graphics) instead of "SP".

Ron

Thanks!

This is the structure of one subtitle as I thought:
-------------
'PG', PTS, 0,0,0,0, (start time)
0x16, ... presentation composition definition (0x13 bytes)
0x17, ... window definition (0x0A bytes)
0x14, ... palette definition (0x4F8 bytes)
0x15, ... object definition (0x3087 bytes)
0x80, 0, 0 end of displayset
'PG', PTS, 0,0,0,0, (end time)
0x16, ... presentation composition definition 0x0B
0x17, ... window definition 0x0A
0x80, 0, 0 end of displayset
-------------
Next subtitle

This is the structure of the xported .pgs:
-------------
0x16, ... presentation composition definition (0x13 bytes)
0x17, ... window definition (0x0A bytes)
'PG', PTS, 0,0,0,0, (0xFB9B81) 3:03.215
0x14, ... palette definition (0x4F8 bytes)
0x15, ... object definition (0x3087 bytes)
'PG', PTS, 0,0,0,0, (0xFB9C00) 3:03.216
0x80, 0, 0 end of displayset
0x16, ... presentation composition definition 0x0B
0x17, ... window definition 0x0A
'PG', PTS, 0,0,0,0, (0xFE4620) 3:05.156
0x80, 0, 0 end of displayset
-------------
Next subtitle

What is the extra (first or second) PTS?
Could you change something or I have to handle this structure?

drmpeg · 7th May 2007, 10:52

I know what's wrong. Some segments have a PTS/DTS PES header, and I was only putting a header in the .pgs file on the segments with just a PTS.

Here's the update:

http://www.w6rz.net/xportpgs.zip

Files are dated 5/7/2007 at 2:48 am

For the segments with DTS, I've put the DTS after the PTS.

"PG", PTS (4 bytes), DTS (4 bytes)

If you think the DTS is useless, and you'd rather have 0x0, let me know.

Ron

Pelican9 · 7th May 2007, 12:01

Quote:

Originally Posted by drmpeg

I know what's wrong. Some segments have a PTS/DTS PES header, and I was only putting a header in the .pgs file on the segments with just a PTS.

Here's the update:

http://www.w6rz.net/xportpgs.zip

Files are dated 5/7/2007 at 2:48 am

For the segments with DTS, I've put the DTS after the PTS.

"PG", PTS (4 bytes), DTS (4 bytes)

If you think the DTS is useless, and you'd rather have 0x0, let me know.

Ron

Yesss! Much better! Thank you!
All segment have their own PTS/DTS info.

What do you think about the file extension?
I mean the .sup is well known as subtitle file.
But on the other hand .pgs shows that it is a different structure.

manusse · 7th May 2007, 18:45

I vote for the ".sup" extension because there are already too many subtitle extensions and this will mean that it's a binary subtitle (a.k.a. image).

Cheers
Manusse

Pelican9 · 7th May 2007, 23:23

Quote:

Originally Posted by drmpeg

I know what's wrong. Some segments have a PTS/DTS PES header, and I was only putting a header in the .pgs file on the segments with just a PTS.

Ron!

Did you decrease the PTS values with the PTS of the first video frame?
I think you didn't, because the subtitles are delaying about 10 sec.
Could you check it?
And I vote the .sup extension too.
Thanks in advance.

Edit:
SUPread v0.4b1

drmpeg · 8th May 2007, 11:23

Quote:

Originally Posted by Pelican9

Ron!

Did you decrease the PTS values with the PTS of the first video frame?
I think you didn't, because the subtitles are delaying about 10 sec.
Could you check it?
And I vote the .sup extension too.
Thanks in advance.

Edit:
SUPread v0.4b1

The PTS/DTS is not adjusted. It's directly from the bitstream. Here's an update where the initial video PTS is subtracted from all PGS PTS/DTS values. Also, filename changed to .sup as suggested.

http://www.w6rz.net/xportpgs.zip

File times are 5/8/2007 at 3:16 am.

Ron

Pelican9 · 8th May 2007, 12:51

Quote:

Originally Posted by drmpeg

The PTS/DTS is not adjusted. It's directly from the bitstream. Here's an update where the initial video PTS is subtracted from all PGS PTS/DTS values. Also, filename changed to .sup as suggested.

http://www.w6rz.net/xportsup.zip

File times are 5/8/2007 at 3:16 am.

Ron

THANKS!
(The working link: http://www.w6rz.net/xportpgs.zip)

Edit:
Something wrong with the PTS/DTS adjusting.
Original - Adjusted:
0xFBB289 - 0xFBB28A
0xFBB281 - 0xFBB282
0xFBB249 - 0xFBB24A
...
Like the first video PTS is -1 (or 0xFFFFFFFF)

I've expected something like this:
Original - Adjusted:
0xFBB289 - 0xEDF6E9
0xFBB281 - 0xEDF6E1
0xFBB249 - 0xEDF6A9
...

Edit 2:
It was my fault.
I've used this command:
xport -h 00001.m2ts 1 9 9 1
because I didn't want to demux the video and the audio stream but only the subtitle stream (not enough space on this drive).
Is there a way to skip the video stream demux but get the first video PTS and make a .sup?

manusse · 8th May 2007, 13:20

Could you post an example of such an extracted SUP file so that I can try working on its import by SubtitleCreator?
(Or better a file from which to extract the sup plus the command line I must use).
A short sample will be enough.

Thanks
Manusse

jokin · 8th May 2007, 15:08

I used SUPread on the xported sup and it seems after SUPread is done the SRT times are behind by 11 seconds

6th May 2007, 07:33	#21 \| Link
jokin Dwight Schrute's homeboy Join Date: Jan 2007 Location: The Office Posts: 136	ok now we can extract is there any way to put them on a video via avs? __________________ jokin

6th May 2007, 23:47	#30 \| Link
Pelican9 Coder Join Date: Jan 2007 Location: Around the World Posts: 697	SUPread 0.4 is ready to read BD subtitles... Don't try to download, it's not available yet. I'm waiting for drmpeg's new xport version with PTS info. __________________ BDedit, EVOdemux, SUPread, Nature and Nude Photography Last edited by Pelican9; 6th May 2007 at 23:54.

7th May 2007, 07:02	#31 \| Link
drmpeg Registered User Join Date: Jan 2003 Location: Silicon Valley Posts: 455	Here's the update: http://www.w6rz.net/xportpgs.zip Make sure you clear your browser cache to get the latest. Files are dated 5/6/2007 at 10:55 PM. I chose to use "PG" (for Presentation Graphics) instead of "SP". Ron __________________ HD MPEG-2 Test Patterns http://www.w6rz.net

7th May 2007, 10:52	#33 \| Link
drmpeg Registered User Join Date: Jan 2003 Location: Silicon Valley Posts: 455	I know what's wrong. Some segments have a PTS/DTS PES header, and I was only putting a header in the .pgs file on the segments with just a PTS. Here's the update: http://www.w6rz.net/xportpgs.zip Files are dated 5/7/2007 at 2:48 am For the segments with DTS, I've put the DTS after the PTS. "PG", PTS (4 bytes), DTS (4 bytes) If you think the DTS is useless, and you'd rather have 0x0, let me know. Ron __________________ HD MPEG-2 Test Patterns http://www.w6rz.net

8th May 2007, 15:08	#40 \| Link
jokin Dwight Schrute's homeboy Join Date: Jan 2007 Location: The Office Posts: 136	I used SUPread on the xported sup and it seems after SUPread is done the SRT times are behind by 11 seconds __________________ jokin

6th May 2007, 18:51	#29 \| Link
Rectal Prolapse Registered User Join Date: Mar 2005 Posts: 433	Thanks drmpeg!

7th May 2007, 18:45	#35 \| Link
manusse SubtitleCreator's Co-Dev Join Date: Oct 2005 Location: France Posts: 564	I vote for the ".sup" extension because there are already too many subtitle extensions and this will mean that it's a binary subtitle (a.k.a. image). Cheers Manusse

8th May 2007, 13:20	#39 \| Link
manusse SubtitleCreator's Co-Dev Join Date: Oct 2005 Location: France Posts: 564	Could you post an example of such an extracted SUP file so that I can try working on its import by SubtitleCreator? (Or better a file from which to extract the sup plus the command line I must use). A short sample will be enough. Thanks Manusse