[mythtv-users] Transcoding UK DVB recordings - Is there a secret?

rob.mythtv at robertwillett.com rob.mythtv at robertwillett.com
Tue Mar 21 20:22:58 UTC 2006


Hi,

I've had MythTV 0.19 working for some time. For the first time ever I 
used the ATRPMS distribution rather than building from scratch. It 
worked first time and has been pretty good ever since. Kudos to 
everybody there.

I'm trying to get transcodes to work and am hitting a brick wall. I've 
been using mythtv since about 0.14 says and never, ever got transcode to 
work. However I thought this time with the atrpms it would work, nope, 
nothing doing.

I'm trying to convert a DVB recording into something smaller. Anything 
will do for now, just something smaller. I queue it up in mythtv but 
just get an error message in the logs saying unknown video codec.

0: start_time: 8524.423 duration: 334.454
1: start_time: 8524.361 duration: 334.439
2: start_time: 8524.363 duration: 334.448
3: start_time: 8524.361 duration: 334.517
stream: start_time: 94715.119 duration: 3716.852 bitrate=2468 kb/s
2006-03-21 20:04:15.255 AFD: Opened codec 0x8536700, id(MPEG2VIDEO) 
type(Video)
2006-03-21 20:04:15.273 AFD: Opened codec 0x8536a40, id(MP3) type(Audio)
2006-03-21 20:04:15.275 AFD: Opened codec 0x8536fc0, id(MP3) type(Audio)
2006-03-21 20:04:15.278 AFD: Opened codec 0x8537590, id(DVB_SUBTITLE) 
type(Subtitle)
2006-03-21 20:04:15.391 New DB connection, total: 3
2006-03-21 20:04:15.395 Connected to database 'mythconverg' at host: 
localhost
2006-03-21 20:04:15.407 Unknown video codec:
2006-03-21 20:04:15.411 Transcoding /var/video/1013_20060320014400.mpg 
failed
2006-03-21 20:04:15.423 Unknown socket closing
2006-03-21 20:04:15.430 Transcode Errored for Grand Designs: 1.1 GB => 0 
bytes (Autodetect)

Now searching through Google for Transcode DVB codec produces lots of 
hits but little useful information.  Not sure where to go from here. I 
was a little surprised at the lack of info on google.

I think my problem is that transcode simply has no idea how to use the 
video stream, which would indicate that further codecs are required. But 
for the life of me I don;t know what ones.

Any advice, help or pointers to where to go much appreciated.

Rob





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