Hi all,
I would like to build a VCR_CMD string for using with an HVR-1300.
I want to record analog channels, using the hardware encoder of the
HVR-1300.
If I do a cat /dev/video1 > test.mpg, I do get a valid mpeg file, so my
question is: what VCR_CMD command should I use inside freevo to record the
hardware-encoded mpeg2 stream, knowing that:
- i want to keep the ability to stop a recording after a defined time
- i don't want to transcode the mpeg stream in any way, just save it to disk
It should be a little like the following, but I am a little bit lost with
all those mencoder switches
# 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
I though using mplayer instead of mencoder, because mplayer has a lovely
"save-stream-to-file" feature, but problem is that I then cannot program the
end of the record (%(seconds)).
Any help is welcome.
PS: the best for me would be to use the ivtv plugin, but unfortunatelly, my
HVR board seems to not be supported by the ivtv driver. I will not get live
pause with the normal method, but it is a first integration step. In a next
effort, I will try to adapt the ivtv plugin for my HVR.
Regards,
Pirlouwi.
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