[mythtv-users] lossless_cut issue with UK HD recordings

[Paul Gardiner]

On 02/03/2015 22:36, Grzegorz Sikorski wrote:
> Hi,
>
> I have tried to use lossless_cut tool with my MythTV setup. This tool is
> great and it works perfect for all my SD channels recording. However I
> could not get proper output mkv video for any UK Freeview HD channels. I
> got properly cut movie, but with destroyed audio (it is not playable on
> any player, tried VLC, Totem and even Windows Media Player). Some movies
> have audio broken (VLC displays error message on audio path), some have
> just "silent" path. After some deep search I found this topic:
> https://tvheadend.org/boards/5/topics/6808. It seems the audio cannot be
> properly played since UK broadcasters change audio codec during
> transmission (e. g. switching codecs between commercial brakes and
> actual movie). Could anybody confirm this is a related issue? If so, is
> there any known workaround?


For UK Freeview HD, one way that works well is to use mythtranscode in
fifo dir mode run into ffmpeg. Shame to decompress and recommpress
again, I know, but the results are good. There's an example script
here: 
http://www.mythtv.org/wiki/Example_Script_using_mythtranscode_in_fifodir_mode
that can be set up as a user job.