From owner-freebsd-questions@freebsd.org Tue May 17 23:36:34 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D9E2BB3F37C for ; Tue, 17 May 2016 23:36:34 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: from mail-oi0-x235.google.com (mail-oi0-x235.google.com [IPv6:2607:f8b0:4003:c06::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A04E419CF for ; Tue, 17 May 2016 23:36:34 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: by mail-oi0-x235.google.com with SMTP id v145so50782596oie.0 for ; Tue, 17 May 2016 16:36:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc; bh=UX7qJ+8aVI59pv5Pi2HQhK51r3Wj7S7YXpQel4e6ZZo=; b=PvI+/SjaUEx3acgtjRHpZpdGsaHd8Dv94yRKIZ8xbkVhkE4rHEH6EviOrfl3PKQR5s CAJT8DmhOhDty434y5Jux6wjBuKhASYbtSY+mK4xwVwwxVLcodKRQNIYcfNgPWGf9Wiv BggsdZdN1uTsG62T03pVhmeuLLueJnZC0+hwdMl2PeygS8UfSHOepbpnToqJ1vCkFAeN MdgqB1y6SmSAtSu13pxvaYiLUYpJRS0Gd4JQH/TOUsa03Ow1v5o0W3KnIgZMppubbLrK OBI7mTa5ZScHPtL9+0Yg1471mSNYjHS8NNWnZBHGhAM2fhOTFQF8LIyCPE9YsAjTk27G XFFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc; bh=UX7qJ+8aVI59pv5Pi2HQhK51r3Wj7S7YXpQel4e6ZZo=; b=gfJUz+001KDCneKlne5F8W18iJZyOPViwBGjJ77AbgZpZ0K3/OmlQJ5SfcpL99JMbe EmWFEJrYVFBHynSTAmowaXt/RU45XuwfEuw8Orj8v7FBroP6X7m6tpzZrsDfADHw/MlL 5BybimqlTcKp+p+hRMjdtDGn1X3ZOPWw8y+hNJabugDA6G1yktZMznKa0hncD9+KovCF mGqyRMiiahyegCgxR3/1/XElswGF1m/IjyYXZRbCLSGW/LeWzz0cngpho/IP2wu9XZdB PutqKyymE1tZbXHVnzs3fhwVCE0ZetIe1JtIsuqGujfDcgqrjW0Z5ZRYy6eKi4lNC7ld lNeQ== X-Gm-Message-State: AOPr4FV24ByXHYxNi6b4NMqYa5e/Scezjvc7kx5GaxR9qz3vWh+UKVF4TOFKH3OTvPrtwfFqHUwPfx/SetoOyw== MIME-Version: 1.0 X-Received: by 10.157.33.130 with SMTP id s2mr2631832otb.120.1463528193964; Tue, 17 May 2016 16:36:33 -0700 (PDT) Received: by 10.157.45.131 with HTTP; Tue, 17 May 2016 16:36:33 -0700 (PDT) In-Reply-To: <20160517191717.e873d96f.freebsd@edvax.de> References: <20160517190459.061ddf66a15df9b686b0d87d@yahoo.es> <20160517191717.e873d96f.freebsd@edvax.de> Date: Tue, 17 May 2016 16:36:33 -0700 Message-ID: Subject: Re: Recording from multiple webcams From: Mehmet Erol Sanliturk To: Polytropon Cc: Eduardo Morras , Eduardo Morras via freebsd-questions Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.22 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 May 2016 23:36:34 -0000 On Tue, May 17, 2016 at 10:17 AM, Polytropon 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