#13292: LiveTV Channel Switching - DVB-T/T2 UK Freeview
--------------------------------------+--------------------------
Reporter: mikeb2013 | Owner: (none)
Type: Bug Report - General | Status: new
Priority: minor | Milestone: needs_triage
Component: MythTV - DVB | Version: Master Head
Severity: medium | Keywords:
Ticket locked: 0 |
--------------------------------------+--------------------------
I am seeing a number of issues in LiveTV when changing to certain channels
on DVB-T/T2 UK Freeview. The symptoms vary from an ok channel change, to
video with no audio, vidio with wrong audio (subtitle fails) to "cannot
open decoder".
It seems that codec detection for LiveTV is having problems with certain
channels, where mp3 codec is detected. It is particularly noticeable for
Sky News channel.
The issues are also present on mythtv 29, so the recent bump to ffmpeg 4
in master does not seem to be the cause.
mythtv 0.28 works but also has the Ring Buffer detection issues, but
channel change is ok.
Note Channel switching times are also long due to Ring Buffer
detection not failing, it falls back to in-file.
Attached are a number of debug logs including ffmpeg, mythffmpeg and
mediainfo data taken from a recording of Sky News channel.
--
Ticket URL: <https://code.mythtv.org/trac/ticket/13292>
MythTV <http://www.mythtv.org>
MythTV Media Center
--------------------------------------+--------------------------
Reporter: mikeb2013 | Owner: (none)
Type: Bug Report - General | Status: new
Priority: minor | Milestone: needs_triage
Component: MythTV - DVB | Version: Master Head
Severity: medium | Keywords:
Ticket locked: 0 |
--------------------------------------+--------------------------
I am seeing a number of issues in LiveTV when changing to certain channels
on DVB-T/T2 UK Freeview. The symptoms vary from an ok channel change, to
video with no audio, vidio with wrong audio (subtitle fails) to "cannot
open decoder".
It seems that codec detection for LiveTV is having problems with certain
channels, where mp3 codec is detected. It is particularly noticeable for
Sky News channel.
The issues are also present on mythtv 29, so the recent bump to ffmpeg 4
in master does not seem to be the cause.
mythtv 0.28 works but also has the Ring Buffer detection issues, but
channel change is ok.
Note Channel switching times are also long due to Ring Buffer
detection not failing, it falls back to in-file.
Attached are a number of debug logs including ffmpeg, mythffmpeg and
mediainfo data taken from a recording of Sky News channel.
--
Ticket URL: <https://code.mythtv.org/trac/ticket/13292>
MythTV <http://www.mythtv.org>
MythTV Media Center