Date: Tue, 17 May 2016 16:36:33 -0700 From: Mehmet Erol Sanliturk <m.e.sanliturk@gmail.com> To: Polytropon <freebsd@edvax.de> Cc: Eduardo Morras <emorrasg@yahoo.es>, Eduardo Morras via freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: Recording from multiple webcams Message-ID: <CAOgwaMuDNCDzkamkUyi5jXvJ%2BWiR5puR6avGQK1myKSN51f_bQ@mail.gmail.com> In-Reply-To: <20160517191717.e873d96f.freebsd@edvax.de> References: <20160517190459.061ddf66a15df9b686b0d87d@yahoo.es> <20160517191717.e873d96f.freebsd@edvax.de>
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On Tue, May 17, 2016 at 10:17 AM, Polytropon <freebsd@edvax.de> wrote: > On Tue, 17 May 2016 19:04:59 +0200, Eduardo Morras via freebsd-questions > wrote: > > Can I record video from multiple webcams? I need record from 3 webcams > > simultaneusly, I've install webcamd but can't find any app to record > > from them. Some apps allow 1 webcam but I need at least 3. > > Not tested (because I don't have even one webcam here), but would > mencoder be an option for you? Many years ago, I've been using a > computer with two Haupauge TV/video cards and accessed their video > inputs independently by accessing /dev/bktr0 with one mencoder, > and /dev/bktr1 with the other... not sure if mencoder could do > the same with webcams controlled by webcamd... > > > -- > Polytropon > Magdeburg, Germany > Happy FreeBSD user since 4.0 > Andra moi ennepe, Mousa, ... > _______________________________________________ > > man cheese is showing that there is a command line option --device=DEVICE, -d DEVICE Use the supplied DEVICE as the video capture device. In a Terminal : [s@localhost ~]$ cheese --device=/dev/video1 (cheese:14915): GLib-GObject-WARNING **: value "5.000000" of type 'gdouble' is invalid or out of range for property 'delaytime' of type 'gdouble' [s@localhost ~]$ Picture from web camera is displayed . [s@localhost ~]$ cheese --device=/dev/video0 (cheese:14997): GLib-GIO-CRITICAL **: g_settings_set_value: assertion 'G_IS_SETTINGS (settings)' failed [s@localhost ~]$ x_sync_UDD.sh Cheese could not start due to the above error . If these errors can be corrected in sources , you may use multiple copies of Cheese for multiple devices . -------------------------------------------- The following statements in different Terminal windows worked concurrently in different web cameras : camorama -d=/dev/video0 camorama -d=/dev/video1 Initialization of web cameras may be required by pulling and reinserting them . See how to Camorama in the following page : https://github.com/alessio/camorama view, alter and save images from a webcam Mehmet Erol Sanliturk
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