$ mythtranscode -v audio -p autodetect  -i 1321_20060515194800.mpg -o /hdtv2/tmp/out.mpg
2006-05-21 18:49:16.529 0xb5479a00 MythContextPrivate::MythContextPrivate(MythContext*) Using runtime prefix = /usr/local
QSettings::sync: filename is null/empty
QSettings::sync: filename is null/empty
2006-05-21 18:49:16.545 0xb5479a00 MSqlDatabase* MDBManager::popConnection() New DB connection, total: 1
2006-05-21 18:49:16.552 0xb5479a00 int main(int, char**) Enabled verbose msgs: important audio
QSettings::sync: filename is null/empty
QSettings::sync: filename is null/empty
2006-05-21 18:49:16.559 0xb5479a00 MSqlDatabase* MDBManager::popConnection() New DB connection, total: 2
2006-05-21 18:49:16.584 0xb5479a00 bool MythContext::CheckProtoVersion(QSocketDevice*) Using protocol version 29
0: start_time: 0.031 duration: 230.659
1: start_time: 0.032 duration: -9223372036854.775
2: start_time: 0.032 duration: -9223372036854.775
stream: start_time: 0.343 duration: 2562.874 bitrate=8263 kb/s
2006-05-21 18:49:16.777 0xb5479a00 int AvFormatDecoder::ScanStreams(bool) AFD: Audio Track #1 is A/V stream #1 and has 6 channels in the Unknown language(0).
2006-05-21 18:49:16.778 0xb5479a00 int AvFormatDecoder::ScanStreams(bool) AFD: Audio Track #2 is A/V stream #2 and has 1 channels in the Unknown language(0).
2006-05-21 18:49:16.778 0xb5479a00 int AvFormatDecoder::AutoSelectAudioTrack() AFD: Trying to select audio track (w/lang)
2006-05-21 18:49:16.778 0xb5479a00 int AvFormatDecoder::AutoSelectAudioTrack() AFD: Trying to select audio track (wo/lang)
2006-05-21 18:49:16.778 0xb5479a00 int AvFormatDecoder::AutoSelectAudioTrack() AFD: Selected track 1: Unknown AC3 5.1ch (A/V Stream #1)
2006-05-21 18:49:16.778 0xb5479a00 bool AvFormatDecoder::SetupAudioStream() AFD: Initializing audio parms from audio track #1
2006-05-21 18:49:16.778 0xb5479a00 bool AvFormatDecoder::SetupAudioStream() AFD: Audio format changed 
                        from id(NONE)    -1Hz -1ch   0bps    ; id(NONE)    -1Hz -1ch   0bps   
                        to   id( AC3) 48000Hz  6ch  16bps    ; id( AC3) 48000Hz  2ch  16bps   
QSettings::sync: filename is null/empty
QSettings::sync: filename is null/empty
2006-05-21 18:49:16.996 0xb5479a00 MSqlDatabase* MDBManager::popConnection() New DB connection, total: 3
2006-05-21 18:49:17.020 0xb5479a00 int Transcode::TranscodeFile(char*, char*, QString, bool, bool, int, QString) Switching to MPEG-2 transcoder.
Mux rate: 19.96 Mbit/s