PGS subtitles out of scale in resized Bluray MKVs

[lcm121]

Hello, I already posted my issue a week ago by adding it to an existing post from another user in the General VLC media player Troubleshooting section (viewtopic.php?f=2&t=103641). However, since I have not received a single reply, I'm wondering if I posted in the correct section. I'll give it a second go here:

I converted some 1080p Blurays to a 720p MKV with Handbrake (latest nightly build) and the PGS subtitles are out of scale. They are far too big, as if VLC "thinks" that the movie display size is still at 1920x1080, and not 1280x720 pixels, as can be seen in this screenshot of the 720p movie: http://i.imgur.com/xlVBJ.png. This is the same scene at 1080p with nicely-sized subtitles: http://i.imgur.com/gbHy6.jpg.

The subtitles are displayed correctly with MPC-HC and the WDC TV Live SMP. Hardware players are usually rather fussy so I would expect that the WDC TV Live would have trouble displaying wrongly encoded PGS subtitles properly, but it doesn't. For testing purposes, I converted the same Blurays to MP4 with Handbrake and the subtitles are OK when played with VLC, so the issue seems to be limited to rescaled MKVs.

So this makes me wonder if there could be another reason than Jean-Baptiste's explanation from the other post (wrong PGS encoding). Is it rather something within VLC? Or maybe it's just something in my VLC settings?

Any help would be appreciated. Thanks.

[Jean-Baptiste Kempf]

Well, because the size included in the PGS in 1080p, while they ignore this size to use the one of container.
Could be fixed, with some time.

[lcm121]

Thanks for your reply. Is this already on your to-do list, or shall I create a new entry in the Feature Request section? Is there any timeframe for fixing this?

[Jean-Baptiste Kempf]

Depends on the samples and the difficulty of doing it.

[lcm121]

I'm confused if this issue should be reported as a bugfix request or a feature request and if it is Windows-specific or not... could a moderator/administrator help and move this to the correct section? Thanks!

[Jean-Baptiste Kempf]

We still need more samples...

[lcm121]

I uploaded a 10 sec sample to http://streams.videolan.org/upload. However, I could not fill in a Trac Ticket reference because I do not have one.

[Jean-Baptiste Kempf]

Thanks.

[lcm121]

Hello, any progress?

[Jean-Baptiste Kempf]

I think nothing has been done on that yet.

[lcm121]

What needs to be done to get things started?

[firewing1]

I would be interested in seeing this resolved as well (see https://forum.handbrake.fr/viewtopic.php?f=12&t=26763).

What can we do to help?

[Jean-Baptiste Kempf]

What needs to be done to get things started?

time and samples

[lcm121]

But I already uploaded samples as per your request in November 2012... isn't that enough to begin with?

Please let me know if you need more samples or if I can anything else to help.