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Today's Topics:
1. configuration options for video PLUS stills (Dougie Nisbet)
----------------------------------------------------------------------
Message: 1
Date: Sat, 20 Oct 2018 20:54:10 +0100
From: Dougie Nisbet <dou...@katsura.uk>
To: motion-user@lists.sourceforge.net
Subject: [Motion-user] configuration options for video PLUS stills
Message-ID: <c5c9b73e-cb1a-de7d-7468-2c97f31bf...@katsura.uk>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
The way I use motion has changed a bit this last year. I used to store
lots of still images and tweak various options in an attempt to control
sensitivity and recording rate. However now I'm recording a lot more
video. My setup is mostly Raspberry Pi + cheap logitech USB webcams. The
targets are mostly security, plus cats and a bit of wildlife.
In order to record the best quality video, I've made the assumption that
I need:
# Maximum number of frames to be captured per second.
# Valid range: 2-100. Default: 100 (almost no limit).
framerate 100
but I'd also still like to record some still images. But with a high
framerate obviously I'm going to get a high number of stills.
So I set the output_pictures option to 'best' and this works quite well.
# Output 'normal' pictures when motion is detected (default: on)
# Valid values: on, off, first, best, center
# When set to 'first', only the first picture of an event is saved.
# Picture with most motion of an event is saved when set to 'best'.
# Picture with motion nearest center of picture is saved when set to
'center'.
# Can be used as preview shot for the corresponding movie.
output_pictures best
I've assumed that there is no way of having a different recording rate
(i.e. a low one) for still images that would still record a few more
than 'best', that wouldn't affect the frame rate of the recorded video.
Is this correct?
Also, in the log files I often come across the message "preview_save:
different filename or picture only!" (see below). Do I have something
mis-configured somewhere?
Thanks
Dougie
[1:ml1:kitstop] [NTC] [EVT] [Oct 20 20:48:58] event_new_video Source FPS 2
[1:ml1:kitstop] [NTC] [ENC] [Oct 20 20:48:58] ffmpeg_open Selected
Output FPS 2
[1:ml1:kitstop] [NTC] [ENC] [Oct 20 20:48:58] ffmpeg_avcodec_log: Using
AVStream.codec to pass codec parameters to muxers is deprecated, use
AVStream.codecpar instead.
[1:ml1:kitstop] [NTC] [EVT] [Oct 20 20:48:58] event_newfile: File of
type 8 saved to: /webcams/kitstop/movies/2018/10/20/kitstop - event17 -
Sat 20 Oct 2018 - 204858.mp4
[1:ml1:kitstop] [NTC] [ALL] [Oct 20 20:48:58] motion_detected: Motion
detected - starting event 17
[1:ml1:kitstop] [NTC] [ALL] [Oct 20 20:49:21] preview_save: different
filename or picture only!
[1:ml1:kitstop] [NTC] [EVT] [Oct 20 20:49:21] event_newfile: File of
type 1 saved to: /webcams/kitstop/2018/10/20/20/kitstop_20181020_204859.jpg
[1:ml1:kitstop] [NTC] [ALL] [Oct 20 20:49:21] motion_loop: End of event 17
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