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utar
November 16th, 2009, 01:27 AM
Ok I had better start by saying this is not 100% on topic for this forum, other then the fact I watch the files on my myth box! However I'm at a loss on this one and as I've had so helpful answers from here in the past thought I would make a post.

Basically I recorded Doctor Who off BBC-HD earlier today and want to remux this into to a mkv container with no recompression.

I used tsmuxer (on windows) to demux the streams and then tried mkvmerge (the windows version again but there is a build of this in the ubuntu repository as well) and other software including ffmpeg (via a front-end) but cannot get a mkv file that works on myth, vlc or anything else correctly.

What is confusing is that I managed to remux the last episode of Doctor Who shown earlier in the year, and I'm sure I used the same method.

Any help would be appreciated.



Utar

utar
November 16th, 2009, 11:12 PM
Well in case anyone else has the same issue in future I thought I would post an update.

It seems that BBC-HD must have changed their transmission format as tsmuxer was not correctly demuxing the stream. After a lot of experimentation I managed to get vlc to remux the stream into a new ts container (less the audio track I didn't want) which tsmuxer liked. I could then use tsmuxer to demux the ts file and cut the over-recording at the start.

Mkvmerge then worked, although I had to set the fps to 50, rather then 25.

The mkv files plays fine on myth and any other player.


Utar

SiHa
November 17th, 2009, 09:18 AM
It seems that BBC-HD must have changed their transmission format
Well that explains why Myth is showing it as simply 'HD' rather than '1080' in the recordings list.

Any good? Haven't watched it yet.

utar
November 17th, 2009, 10:42 AM
I liked it, well worth watching.

If you are interested there is a blog post on the BBC website re the change which happened in August:

http://www.bbc.co.uk/blogs/bbcinternet/2009/11/points_of_view_and_hd_picture.html



Utar

SiHa
November 17th, 2009, 01:15 PM
Yes, I stumbled across one of the BBC-HD / PQ blogs a while back. Things certainly do get quite heated. Personally, I think the PQ is pretty good, but then I've not got SKY or a Blu-Ray player yet.