[Freevo-tracker] [ freevo-Bugs-1642932 ] No frequencies in mencoder command

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Bugs item #1642932, was opened at 2007-01-23 22:46
Message generated for change (Comment added) made by highking81
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Category: record server
Group: None
>Status: Open
Resolution: Fixed
Priority: 5
Private: No
Submitted By: HighKing (highking81)
Assigned to: Nobody/Anonymous (nobody)
Summary: No frequencies in mencoder command

Initial Comment:
The mencoder command spawn by Freevo for recording live tv, does not get any frequencies when using a non-standard chanlist.

I've made a special chanlist called 'nl-multikabel' in freq.py, and this works well when watching TV, but not when trying to record it.

When opening a station from the tv guide for watching tv, I see this in the main-500.log:

ChildApp.__init__(), pid=3266, app= /usr/bin/mplayer -vo fbdev -ao alsa -fs -autosync 100 -nolirc -autoq 100 -screenw 800 -screenh 600 -fs -slave -nocache tv:// -tv driver=v4l2:freq= 208.000:device=/dev/video0
:input=0:norm=PAL:width=640:height=480:outfmt=yuy2 , poll=-1
1169584104.61: started tv app

The recordserver seems to have it's own log, so I already had this in the recordserver-500.log :

2007/01/19 21:24 CET [*RecordServer*] popen  /usr/bin/mencoder tv:// -tv driver=v4l:input=0:norm=pal:channel=25:chanlist=nl-multikabel:width=320:height=240:outfmt=yuy2:device=/dev/video0:adevice=/dev/dsp:audiorate=32000:forceaudio:forcechan=1:buffersize=64 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1200:keyint=30 -oac mp3lame -lameopts br=128:cbr:mode=3 -ffourcc divx -endpos 49 -o /home/michel/Video/Opnames/01-19_21:24_Handmatige_opname.avi

As you can see, Freevo gives the option "freq=" to the mplayer command, but the mencoder command gets "channel=25:chanlist=nl-multikabel".  Since the nl-multikabel chanlist only exists in Freevo (because I put it in myself), the mencoder program doesn't know what to do with it, and just uses the frequency the tuner was already set to.

Note that the mencoder_cmd was not set in local_conf.py when i got this line in the log.

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>Comment By: HighKing (highking81)
Date: 2007-01-25 21:36

Message:
Logged In: YES 
user_id=1650474
Originator: YES

Cool!  I've added the frequencyMHz line in generic_record.py, and changed
the frequency setting in local_conf.py to frequencyMHz and it works!
Did I already tell you, you rock? :D

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Comment By: Duncan Webb (duncanwebb)
Date: 2007-01-25 21:03

Message:
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Added this, should work now.

         cl_options = { 'channel'  : rec_prog.tunerid,
                        'frequency' : frequency,
+                       'frequencyMHz' : float(frequency) / 1000,
                        'filename' : rec_prog.filename,
                        'base_filename' :
os.path.basename(rec_prog.filename),
                        'title' : rec_prog.title,

So from python:
>>> frequency=504000
>>> cl_options = { 'frequency' : frequency, 'frequencyMHz' :
float(frequency) / 1000, }
>>> ':freq=%(frequency)s' % cl_options
':freq=504000'
>>> ':freq=%(frequencyMHz)s' % cl_options
':freq=504.0'
>>> 

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Comment By: HighKing (highking81)
Date: 2007-01-25 20:11

Message:
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Originator: YES

Still does not work.  Problem is, that with this set, Freevo runs the
mencoder command with "freq=504000" as frequency, but it should be divided
by 1000 first to make MHz's off of the frequency setting.

I tried simply cutting and pasting the command from recordserver-500.log
to the cli, and putting a dot in the middle of the frequency, and that
works.  How can I divide this frequency from the local_conf.py?

Even though, I still think this should be done automagically, like the
mplayer cmd.  I think an application can stand or fall by the ease of
configuration (just the thing that drove me away from MythTV).

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Comment By: Duncan Webb (duncanwebb)
Date: 2007-01-25 19:07

Message:
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user_id=104395
Originator: NO

Sorry I thought that this was a but but it's not. The problem is with the
VCR_CMD:

In local_conf.py
# VCR_CMD = (CONF.mencoder + ' ' +
#            'tv:// ' +                      # New mplayer requires this.
#            '-tv driver=%s:input=%d' % (TV_DRIVER, TV_INPUT) +
#            ':norm=%s' % CONF.tv +
#            ':channel=%(channel)s' +        # Filled in by Freevo
#            ':chanlist=%s' % CONF.chanlist +
#            ':width=%d:height=%d' % (TV_REC_SIZE[0], TV_REC_SIZE[1]) +
#            ':outfmt=%s' % TV_REC_OUTFMT +
#            ':device=%s' % TV_DEVICE +
#            VCR_AUDIO +                     # set above
#            ' -ovc lavc -lavcopts ' +       # Mencoder lavcodec video
codec
#            'vcodec=mpeg4' +                # lavcodec mpeg-4
#            ':vbitrate=1200:' +             # Change lower/higher,
bitrate
#            'keyint=30 ' +                  # Keyframe every 10 secs,
change?
#            '-oac mp3lame -lameopts ' +     # Use Lame for MP3 encoding,
must be enabled in mencoder!
#            'br=128:cbr:mode=3 ' +          # MP3 const. bitrate, 128
kbit/s
#            '-ffourcc divx ' +              # Force 'divx' ident, better
compat.
#            '-endpos %(seconds)s ' +        # only mencoder uses this so
do it here.
#            '-o %(filename)s')         # Filled in by Freevo

Freevo will replace the following:
'channel'  : rec_prog.tunerid,
'frequency' : frequency,
'filename' : rec_prog.filename,
'base_filename' : os.path.basename(rec_prog.filename),
'title' : rec_prog.title,
'sub-title' : rec_prog.sub_title,
'seconds'  : rec_prog.rec_duration

Change the channel line to:
':freq=%(frequency)s' +        # Filled in by Freevo
And remove this one.
':chanlist=%s' % CONF.chanlist +

There may be other things that need changing.

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