[mythtv-users] possible bug in 0.28 mythtranscode

[Jim Abernathy]

On 08/07/2016 09:44 AM, Jim Abernathy wrote:
>
>
>
> On 08/05/2016 05:21 PM, George Bingham wrote:
>> On Fri, Aug 5, 2016 at 10:47 AM, Jim Abernathy 
>> <jfabernathy at outlook.com <mailto:jfabernathy at outlook.com>> wrote:
>>
>>     I posted this in mythv forum, but not sure if that was the place
>>     for it.  In 0.27 I used the following procedure to process some
>>     OTA TV recordings I wanted to save on a NAS:
>>
>>     1. using mythfrontend, I'd edit the recording using the detected
>>     commercial list and fix any issues and save the edited list to
>>     the cutlist.
>>     2. I'd run the command:
>>
>>     mythtranscode --chanid 1111 --starttime 20160805000000 --mpeg2
>>     --honorcutlist -o new-output-file.mpg
>>
>>     3. use handbrake to convert the .mpg file and put if on my NAS
>>
>>     Using this method I still had the original file within Mythtv.
>>
>>     In version 0.28 mythtranscode will create 'new-output-file.mpg'
>>     but it deletes the original and now mythfrontend can't find it
>>     and gets an error.
>>
>>     If I do not use the -o option it behaves correctly and
>>     mythfrontend finds the same program and plays it but the cutlist
>>     has been applied and deleted.
>>
>>     BTW, using the extension .ts instead of .mpg doesn't change the
>>     behavior.
>>
>>     I see nothing in the 0.28 information that says the intent of
>>     mythtranscode changed from 0.27 to 0.28.
>>
>>     Not sure of the rules here, but I've attached the console log to
>>     this email.
>>
>>
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>>
>>
>>
>> Hi Jim,
>>
>> I do much the same thing for some of my shows, and I have found that 
>> if my script makes a copy of the original recording into the original 
>> storage directory, but with a '.tmp' extension, then the 
>> mythtranscode step will behave as expected.
>>
>> I do think it's a bug in that it doesn't make that backup copy, but 
>> if that .tmp file is there, it will delete the original after it has 
>> been transcoded, but recopy (or perhaps rename) the .tmp file back to 
>> it's original filename (in my case it's .ts, but previous versions 
>> would be .mpg).
>>
>> Just add that step to your transcode script near the beginning.
>>
>> The end result is that the original show is still in your listings 
>> and playable and all, but there is no longer a cutlist associated 
>> with it. I presume running mythcommflag or whatever it's called will 
>> re-create one, or it can be done manually, but all I want is to have 
>> the opportunity to try again should something else go wrong with the 
>> transcoding steps. Generally it works correctly so after it's been 
>> transcoded and saved away, I just manually delete it.
>>
>> Hope this helps.
>>
>> George
>>
>
> Thanks, George,
>
> This is a good workaround and I can use this until the bug is addressed.
>
> Jim A
>
Just an update on my testing on 0.28.  If I have the tickbox enable in 
the mythtv-set Global -> Job Queue (Global) -> "Save Original FIles 
after transcoding", I get the .old file left along with the .old.  If I 
don't have the tickbox enabled, there is no .old file, but the original 
.ts is there but without comm flags or cutlist.

So all I have to do for the workaround in 0.28 is mod my script to copy 
the original .ts to .tmp then mythtranscode with the -o option.  This 
assumes no tickbox checked.

Jim A

>>
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