[MEncoder-users] demuxing a radio stream

David de Beer ddebeer at xs4all.nl
Fri Nov 17 17:12:38 CET 2006


On my satellite PVR I record the usual films of course, but radio broadcasts 
as well.
The PVR records the broadcasts as a .rec file, which can be listened to with 
mplayer.
But, they have a gigantic overhead on a non-existing videostream, plus 
sometimes I would like to burn the contencts on CD, edit the files to keep 
the music alone etc etc..

Now demuxing poses a problem. No matter what combination of commands I tried 
so far the result is:'Video stream is mandatory!'

in mplayer I get the settings as below on playing, please help me out if you 
know a way to demux the file by use of mencoder.
The combination might exist, I hope.

greetings,
David


>>>
Playing viool1.rec.
TS file format detected.
DEMUX OPEN, AUDIO_ID: -1, VIDEO_ID: -1, SUBTITLE_ID: -2,
PROBING UP TO 2000000, PROG: 0
NO VIDEO! AUDIO MPA(pid=7215) NO SUBS (yet)!  PROGRAM N. 7214
Opened TS demuxer, audio: 50(pid 7215), video: ffffffff(pid -1)...POS=7144, 
PROBE=2000000
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
[AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource 
busy
alsa-init: using device default
alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...
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