[mythtv-users] mythtranscode silently failing

[Paul Harrison]

Joe Auty wrote:
> Paul Harrison wrote:
>   
>> Joe Auty wrote:
>>     
>>> Paul Harrison wrote:
>>>   
>>>       
>>>> Does it work if you use the chanid and starttime something like:-
>>>> mythtranscode -c 1405 -s 20071008195308
>>>>
>>>>     
>>>>         
>>> Unfortunately, no:
>>>
>>> $ mythtranscode -c 1405 -s 20071008195308
>>> 2007-10-09 09:39:20.911 Using runtime prefix = /usr
>>> 2007-10-09 09:39:21.103 New DB connection, total: 1
>>> 2007-10-09 09:39:21.246 Enabled verbose msgs: important
>>> 2007-10-09 09:39:21.615 New DB connection, total: 2
>>> 2007-10-09 09:39:22.330 Using protocol version 31
>>> 0: start_time: 6.790 duration: 56.889
>>> 1: start_time: 6.763 duration: 56.886
>>> stream: start_time: 75.145 duration: 632.395 bitrate=5192 kb/s
>>> 2007-10-09 09:39:23.165 New DB connection, total: 3
>>> 2007-10-09 09:39:23.279 Unknown video codec:
>>>
>>>   
>>>       
>> Could be the file is corrupt. Does it play OK in Myth?
>>
>> If you have MythArchive installed it would be interesting to run
>> mytharchivehelper --getfileinfo on the file to see what it makes of the
>> file and what streams it thinks it has. It my just bailout like
>> mythtranscode since it uses the same libavformat.
>>     
>
> It does bail on all my videos which do play fine in MythTV... Here is a
> copy of my output of mytharchivehelper:
>
> # mytharchivehelper --getfileinfo 1280_20071004210000.mpg testfile.mpg 1
> 2007-10-09 13:09:48.675 Opening 1280_20071004210000.mpg
> 0: start_time: 31.916 duration: 329.249
> 1: start_time: 31.873 duration: 329.257
> stream: start_time: 354.145 duration: 3658.797 bitrate=5189 kb/s
> Input #0, mpeg, from '1280_20071004210000.mpg':
>   Duration: 01:00:58.7, start: 354.145378, bitrate: 5189 kb/s
>   Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 480x480, 6000 kb/s,
> 29.97 fps(r)
>   Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, 384 kb/s
> 2007-10-09 13:09:48.690 Calculating frame count
> 2007-10-09 13:10:36.302 frames = 109652
> 2007-10-09 13:10:36.303 duration = 3658
>
>
>
>
> I did set my recording profile for either "transcode" or my capture card
> to capture at 640 x 480 rather than 480 x 480... Is that a part of the
> problem?
>
>   
That actually looks OK. If you look at the testfile.mpg which is
actually an xml file you should see the file info like what streams are
included etc.

Now I've got my brain into gear I think I see what  the problem is :-)

How exactly are you running mythtranscode? You do need to add either
--mpeg2 for a lossless transcode or use the --profile parameter if you
want to transcode the file and --output to tell mythtranscode where to
save the final file.

Paul H.