[mythtv-users] DVD iso Playback Fails After Upgrade to 0.28

[Jay Foster]

On 09/21/2017 04:37 PM, Mark Perkins wrote:
>
>> -----Original Message-----
>> From: mythtv-users [mailto:mythtv-users-bounces at mythtv.org] On Behalf
>> Of Jay Foster
>> Sent: Friday, 22 September 2017 7:49 AM
>> To: mythtv-users at mythtv.org
>> Subject: Re: [mythtv-users] DVD iso Playback Fails After Upgrade to 0.28
>>
>> On 09/20/2017 02:29 PM, Mark Perkins wrote:
>>> On 21 September 2017 2:36:23 am Jay Foster <jayf0ster at roadrunner.com>
>> wrote:
>>>> On 09/19/2017 09:07 PM, Jay Foster wrote:
>>>>> I upgraded from 0.27 to 0.28 and now I cannot play any of my DVD
>>>>> .iso images in mythvideo.  The frontend reports, "Could not find an
>>>>> A/V decoder".  How do I fix this?  This was a mythbunutu 14.04/0.27
>>>>> system.
>>>>>
>>>>>
>>>> I bit more sampling shows that most of the .iso files still play with
>>>> MythTV, just not the first one I tried (The Matrix).  My first
>>>> suspicion was that the .iso file somehow was corrupted. However, kodi
>>>> plays it just fine.
>>>>
>>>>
>>> Try running mythfrontend with "-v playback --loglevel debug" and see
>>> what the log file says.
>>>
>>>
>> Here is the mythfrontend log.  Nothing pops out to me.
> ---snip---
>> Sep 21 15:13:54 mythbox
>> mythfrontend.real: mythfrontend[24974]: N CoreContext
>> audioplayer.cpp:167 (ReinitAudio) AudioPlayer: Enabling Audio
>> Sep 21 15:13:54 mythbox mythfrontend.real: mythfrontend[24974]: E CoreContext
>> mythplayer.cpp:980 (OpenFile) Player(0): Couldn't find an A/V decoder for:
>> '/home2/mythtv/videos/dvd/matrix/THE MATRIX.iso'
>> Sep 21 15:13:54 mythbox mythfrontend.real: mythfrontend[24974]: E
>> CoreContext mythplayer.cpp:2917 (StartPlaying) Player(0): Unable to open
>> video file.
> Check this file with mediainfo or something equivalent and compare the output (particularly audio info) with something that does play ok.
>
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I could only get mediainfo to spit out General information.  I could not 
figure out how to get it to report Audio information. The General 
information for the failing ISO and a working ISO are essentially the 
same.  I tried using Kodi to show audio information about the failing 
and a working ISO.  For a working ISO, Kodi reports 2.0 DOLBY.  For the 
failing ISO, Kodi first reports 5.1 DOLBY when the Warner Brothers intro 
starts, but then switches to 2.0 DOLBY when the menu starts.