OSD, EPG Position & Live TV file metadata does not change along with the channel, in LiveTV

[John Bergqvist <John@…>]

Whenever I change a channel (from whatever channel LiveTV starts with) in LiveTV (this bug does not affect recordings) the Channel changes, but the OSD display/program info and EPG position itself does not change.

i.e. if I changed channels from BBC One to BBC Two, the playback itself would change, but the OSD would still show the program info for what's currently on BBC One, which will itself change (still on BBC One's programs) when BBC One moves onto a next program.

Secondly, the Position in the Program Guide would also remain on the starting channel.

Finally the new LiveTV recording file that would be created upon the channel change also assumes it's for the starting channel, i.e. so the metadata within MythWeb would be that of the program on the starting channel, not the channel i'd just changed to.

[Jim Stichnoth]

As clarified by stuartm, this behavior seems to be limited to channel changes within the same multiplex.

[warpme@…]

Hi, For me, on 0.27-fixes, this ​https://github.com/MythTV/mythtv/commit/50e5f450100addf4c01ff49067c4c96a114c884c is root cause.

[warpme@…]

It looks like following patch solves issue. Only lightly tested....

diff -Naur mythtv-0.27-build-old/mythtv/libs/libmythtv/tv_rec.cpp mythtv-0.27-build-new/mythtv/libs/libmythtv/tv_rec.cpp
--- mythtv-0.27-build-old/mythtv/libs/libmythtv/tv_rec.cpp	2014-01-11 22:03:15.000000000 +0100
+++ mythtv-0.27-build-new/mythtv/libs/libmythtv/tv_rec.cpp	2014-01-11 22:07:04.523642305 +0100
@@ -3860,6 +3860,8 @@
         }
         else if (request.progNum >= 0)
         {
+            channel->SetChannelByString(request.channel);
+
             if (mpeg)
                 mpeg->SetDesiredProgram(request.progNum);
         }

[Jim Stichnoth]

Warpme's patch seems to fix the problem for me. Since I don't know my way around that part of the code, hopefully jpoet can decide if this is the right solution.

[John Poet <jpoet@…>]

In 5208a3a5512a4059b3cb59f4da65503003f3348f/mythtv:

In [50e5f4501] I failed to account for a possible path through
TuningFrequency?(), and removed a necessary call to SetChannelByString?().

I big thank you to warpme for identifying the problem and solution.

Fixes #11989

[John Poet <jpoet@…>]

In 8307dd4990189d65e3b99039d77d84f6a8c81a96/mythtv:

In [50e5f4501] I failed to account for a possible path through
TuningFrequency?(), and removed a necessary call to SetChannelByString?().

I big thank you to warpme for identifying the problem and solution.

Fixes #11989

(cherry picked from commit 5208a3a5512a4059b3cb59f4da65503003f3348f)

[stevegoodey@…]

Yes, thanks for fixing this guys. :-)