I tried latest SVN #8307 with lossless mpeg2 transcoding on UK DVB-T.
Only the ITV cgannels seem to work properly. I am guessing because the
BBC channels contain "empty" audio channles that register as 0
channlels, these are used for Audio descriptions. A typical mythbackend
output is :
2005-12-18 17:43:01.021 Transcode Running for What Not to Wear "Mid-Life
Crisis Men": 2.0 GB => 0 bytes (Autodetect)
2005-12-18 17:43:01.032 transcode: Transcode Running
2005-12-18 17:43:01.040 Transcode Starting for What Not to Wear
"Mid-Life Crisis Men": 2.0 GB (Autodetect)
2005-12-18 17:43:01.057 transcode: Transcode Starting
2005-12-18 17:43:01.353 Using runtime prefix = /usr/local
2005-12-18 17:43:01.386 New DB connection, total: 1
2005-12-18 17:43:01.401 Enabled verbose msgs: important
2005-12-18 17:43:01.410 New DB connection, total: 2
2005-12-18 17:43:01.424 Transcoding from
/myth/tv/1000_20051109200000_20051109210000.mpg to
/myth/tv/1000_20051109200000_20051109210000.mpg.tmp
2005-12-18 17:43:01.448 Connecting to backend server: 192.168.254.4:6543
(try 1 of 5)
2005-12-18 17:43:01.463 Using protocol version 22
2005-12-18 17:43:01.479 MainServer::HandleAnnounce Monitor
2005-12-18 17:43:01.485 adding: mythtv as a client (events: 0)
0: start_time: 1440.153 duration: 323.600
1: start_time: 1440.115 duration: 323.598
2: start_time: 1440.115 duration: 323.638
3: start_time: 1440.115 duration: 323.638
stream: start_time: 16001.277 duration: 3595.980 bitrate=4884 kb/s
2005-12-18 17:43:01.806 AFD: Opened codec 0x80d5b20, id(MPEG2VIDEO)
type(Video)
2005-12-18 17:43:01.833 AFD: Opened codec 0x80d6040, id(MP3) type(Audio)
2005-12-18 17:43:01.837 AFD: Audio Track #1 is A/V stream #1 and has 2
channels in the English language(6647399).
2005-12-18 17:43:01.841 AFD: Opened codec 0x80d6560, id(MP3) type(Audio)
_2005-12-18 17:43:01.845 AFD: Audio Track #2 is A/V stream #2 and has 0
channels in the English language(6647399)._
2005-12-18 17:43:01.849 AFD: Opened codec 0x80d6a80, id(DVB_SUBTITLE)
type(Subtitle)
2005-12-18 17:43:01.854 AFD: Trying to select audio track (w/lang)
2005-12-18 17:43:01.859 AFD: Selected track 1: English MP2 2ch (A/V
Stream #1)
2005-12-18 17:43:01.863 AFD: Initializing audio parms from audio track #1
2005-12-18 17:43:01.868 AFD: Audio format changed
from id(NONE) -1Hz -1ch 0bps ;
id(NONE) -1Hz -1ch 0bps
to id( MP3) 48000Hz 2ch 16bps ; id( MP3)
48000Hz 2ch 16bps
2005-12-18 17:43:01.991 New DB connection, total: 3
2005-12-18 17:43:02.024 Switching to MPEG-2 transcoder.
2005-12-18 17:43:02.043 Opening
/myth/tv/1000_20051109200000_20051109210000.mpg
Skipping unsupported codec 3
No more queue slots!
2005-12-18 17:43:02.598 Unknown socket closing
2005-12-18 17:43:02.607 Transcode Errored for What Not to Wear "Mid-Life
Crisis Men": 2.0 GB => 0 bytes (Autodetect)
2005-12-18 17:43:02.619 transcode: Transcode Errored
The same happens on BBC, Channel 4 and Channel 5 but appears to be ok on
ITV channels on UK DVB-T {freeview}
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