Re: [Motion-user] mpeg4 codec problem and videos not smooth

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Hi Bob.

Thank you very much for your answer.

My initial though was to have one of these boards for each of my cameras 
(this would be the best solution - cheap and working out of the box).
The problem is that the new main boards have lesser pci slots. 
My new board has only 3 pci slots - I use 2 capture boards (one avermedia 
with tv with one capture input for 640X480 fps capture using mencoder) 
and another pico 2000's clone, with 4 inputs (presently,I am using only 
one input. I use the other pci for a sound board (I capture the sound 
from the first camera with the on-board sound board and radio 
transmissions with the pci board).
Even if I used all 3 pci slots, I could capture only 3 cameras (3 boards).
I am searching the internet and have seen that it seems to have some 
support for the Gvision G-800 board in the new kernel (ver 2.6.30), but 
still need to confirm this.

Sergio

----- Original Message -----
From: bob <bob...@gm...>
To: Motion discussion list <mot...@li...>
Date: Mon, 14 Dec 2009 18:03:05 -0700
Subject: Re: [Motion-user] mpeg4 codec problem and videos not smooth

> the cheap boards work.. just get one with the proper amount of inputs 
> you need. The switching of inputs does NOT work. I use a cheap eight 
> port board that works fine.. Ebay.. china...
> 
> here is a bit of info on how I got my cheapo card to work..
> 
> http://bobstory.fortunecity.com/8_Port_Cap_Card.html
> 
> Bob Story
>  ______________________________________
> / Yogi Berra: "Think! How the hell are \
> | you gonna think and hit at the same  |
> \ time?"                               /
>  --------------------------------------
>         \   ^__^
>          \  (oo)\_______
>             (__)\       )\/\
>                 ||----w |
>                 ||     ||
> 
> 
> 
> Sergio A.S. de Aguiar wrote:
> > Thank you, Milan, for your answer
> >
> > These kinds of boards are a little bit more expensives and, at this 
moment, 
> > it's impossible for me to afford one.
> > One possible solution could be to do what you sugest but only having it 
> > passig thru a mpeg encoder before saving to a file (thru a pipe)?
> >
> > Thanks
> >
> > Sergio
> >
> > ----- Original Message -----
> > From: Milan van de Swaluw <mi...@vd...>
> > To: Motion discussion list <mot...@li...>
> > Date: Thu, 10 Dec 2009 21:57:06 +0100
> > Subject: Re: [Motion-user] mpeg4 codec problem and videos not smooth
> >
> >   
> >> Sergio,
> >>
> >> you can also buy a capture card with hardware mpeg encoding and wire 
it 
> >> parallel to your other card.
> >>
> >> On an event you can just run "cat /dev/video1 >> event.mpg" and kill 
the 
> >> process on the end of the event.
> >>
> >> I use a WinTV PVR USB, that works fine. Additional system load is 
about 
> >> 1% on my 3.0 GHz system when recording.
> >>
> >> Milan.
> >>
> >> Sergio A.S. de Aguiar wrote:
> >>     
> >>> Hi.
> >>>
> >>> I think I got what is the problem.
> >>> If I use only one thread, everything s ok.
> >>> The videos are saved ok and they are as good as possible.
> >>> The videos saved using another script, using the loopback are also 
very 
> >>> good (if I use only one motion thread).
> >>> So, the problem seems to be when i use more than one camera in motion 
> >>> (more than one thread).
> >>> I am using one cheap pico2000's like capture board and has to use 
round 
> >>> robin stuff to capture 3 channels, using 3 threads.
> >>> With this, I have all the problems described (specially the videos 
> >>>       
> > being 
> >   
> >>> captured not being constan at all).
> >>>
> >>> Now, my question to you, because I decided to purchase another board.
> >>> I have the possibility to purchase one Geovision model G800 (with 4 
> >>> chips bt878), or G250 (4 channels - the same stuff as the pico 2000 - 
1 
> >>> chip bt878 multiplexed).
> >>> So, i think it's best to use the G800 and use one camera for each of 
> >>>       
> > the 
> >   
> >>> bt878 chips, to avoid the round robin problem.
> >>> What is you advice? Am I right?
> >>>
> >>> Thanks to all for your help and patience.
> >>>
> >>> Sergio
> >>>
> >>> Sergio A.S. de Aguiar escreveu:
> >>>   
> >>>       
> >>>> Hi
> >>>>
> >>>> I thank you all for the help you are providing.
> >>>> I am also experimenting 2 other problems wich are related each other.
> >>>> When I select the mpeg4 or msmpeg4 as the codec to save the motion's 
> >>>> videos, I get "codec not found" when motion try to save the movie.
> >>>> I had to select flv as the video format.
> >>>> To know:
> >>>> The ffmpeg seems to be ok, as I am able to capture video using 
another 
> >>>> script, wich command is:
> >>>>
> >>>> mencoder -quiet -msglevel all=-1 tv:// -tv 
> >>>>
> >>>>         
> >
> > 

driver=v4l2:input=1:normid=1:channel=3:chanlist=us-bcast:device=/dev/video1:adevice=/dev/dsp1 
> >   
> >>>> -oac mp3lame -ovc lavc -of mpeg -mpegopts format=dvd:tsaf -vf 
> >>>> pp=lb/ha/va/dr,hqdn3d,harddup -srate 48000 -af lavcresample=48000 
> >>>> -lavcopts 
> >>>> vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=2000:vbitrate=1800: 
> >>>> keyint=18:vstrict=0:acodec=libmp3lame:aspect=16/9 -lameopts br=64 
> >>>>         
> > -ofps 
> >   
> >>>> 30000/1001 -o $newdir/$MOVIE.mpg&
> >>>>  
> >>>> Using this script, the videos are saved ok, with sound and at 30 fps.
> >>>>
> >>>> The second problem is that the flv videos wich are saved, have a 
> >>>> variable fps (frames per second) and they are all like if they were 
> >>>> time-lapse kind (they play very fast).
> >>>> You can see one of these videos here (size: 230 KBytes): 
> >>>> www.ssaguiar.com/091410-03.flv
> >>>> I wish to have them playing normally, as I intend to have a home 
page 
> >>>> with some player to see them (flv or mpeg).
> >>>> I want, if possible, to have something like seen at: 
> >>>> http://demo.xanview.com/
> >>>>
> >>>> My motion.conf is (I removed all comments and stuff not used, so 
it's 
> >>>> not large):
> >>>>
> >>>> # motion.conf
> >>>> daemon on
> >>>> process_id_file /var/run/motion/motion.pid
> >>>> setup_mode off
> >>>> v4l2_palette 8
> >>>> norm 1
> >>>> rotate 0
> >>>> framerate 100
> >>>> minimum_frame_time 0
> >>>> auto_brightness off
> >>>> brightness 0
> >>>> contrast 0
> >>>> saturation 0
> >>>> hue 0
> >>>> roundrobin_frames 1
> >>>> roundrobin_skip 1
> >>>> switchfilter off
> >>>> threshold_tune off
> >>>> noise_level 32
> >>>> noise_tune on
> >>>> despeckle EedDl
> >>>> smart_mask_speed 0
> >>>> lightswitch 0
> >>>> minimum_motion_frames 2
> >>>> pre_capture 0
> >>>> post_capture 10
> >>>> gap 60
> >>>> max_mpeg_time 0
> >>>> output_all off
> >>>> output_motion off
> >>>> quality 75
> >>>> ppm off
> >>>> ffmpeg_timelapse_mode hourly
> >>>> ffmpeg_bps 500000
> >>>> ffmpeg_variable_bitrate 0
> >>>> ffmpeg_video_codec flv
> >>>> ffmpeg_deinterlace on
> >>>> text_event %Y%m%d%H%M%S
> >>>> target_dir /var/www/capture
> >>>> webcam_quality 50
> >>>> webcam_motion off
> >>>> webcam_maxrate 10
> >>>> webcam_localhost off
> >>>> webcam_limit 0
> >>>> control_port 8080
> >>>> control_localhost off
> >>>> control_html_output on
> >>>> quiet on
> >>>> thread /usr/local/etc/thread1.conf
> >>>> thread /usr/local/etc/thread2.conf
> >>>> thread /usr/local/etc/thread3.conf
> >>>>
> >>>> My thread1.conf (the other 2 are the same, just changing the 
> >>>>         
> > apropriate 
> >   
> >>>> variables):
> >>>>
> >>>> # /usr/local/etc/thread1.conf
> >>>> videodevice /dev/video0
> >>>> input 3
> >>>> width 320
> >>>> height 240
> >>>> threshold 1500
> >>>> locate off
> >>>> text_left CAMERA 1
> >>>> text_right %Y-%m-%d\n%T
> >>>> text_changes off
> >>>> text_double off
> >>>> output_normal best
> >>>> ffmpeg_cap_new on
> >>>> ffmpeg_timelapse 1
> >>>> snapshot_interval 60
> >>>> snapshot_filename %d/snapshots/%H/cam1/%H%M%S-%v-snapshot
> >>>> jpeg_filename %d/pictures/%H/cam1/%H%M%S-%v
> >>>> movie_filename %d/movies/%H/cam1/%H%M%S-%v
> >>>> timelapse_filename %d/time_lapse/%H/cam1/%H-timelapse
> >>>> on_picture_save /sbin/email.sh "%f type%n"
> >>>> webcam_port 8081
> >>>>
> >>>> To know:
> >>>>
> >>>> - I use a cheap pico 2000 like capture board.
> >>>> - The input of channell 1 of this board is also connected to the 
input 
> >>>> of another capture board, to use the audio/video capture script I 
> >>>> mention above.
> >>>> - My computer is a dual Athlon II processor 2.8 GHz with 3 GBytes of 
> >>>> memory and a sata hard drive with 300 GBytes.
> >>>>
> >>>> I compiled the motion's recomended ffmpeg wich is in the motion's 
> >>>> repository.
> >>>>
> >>>> Thanks to all for helping.
> >>>>
> >>>> Sergio
> >>>>
> >>>>
> >>>>         
> >
> > 

------------------------------------------------------------------------------
> >   
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> >>>>
> >>>>   
> >>>>     
> >>>>         
> >>>
> >>>       
> >
> > 

------------------------------------------------------------------------------
> >   
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> >>> https://lists.sourceforge.net/lists/listinfo/motion-user
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> >>>   
> >>>       
> >>     
> > 

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> >   
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> >> https://lists.sourceforge.net/lists/listinfo/motion-user
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> >>
> >>     
> >
> > 

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> >
> >   
> 
> 
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