From owner-freebsd-questions@freebsd.org Tue May 17 19:49:17 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 5B8D3B3D660 for ; Tue, 17 May 2016 19:49:17 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: from mail-oi0-x229.google.com (mail-oi0-x229.google.com [IPv6:2607:f8b0:4003:c06::229]) (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 212BB162B for ; Tue, 17 May 2016 19:49:17 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: by mail-oi0-x229.google.com with SMTP id k142so42697218oib.1 for ; Tue, 17 May 2016 12:49:17 -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=HxO9vkCO9qDuy0sBXr2sT9u/STTrAYDRFAnv5jq+Wj8=; b=zSbUW6IPdRer3cfEAqklnLOrcgeQ7d3WtsfUDI+YmquVSGy/Kjp7A4nE42SXdA514k jplwbKGsgB89lvPTWsT+1nbF9zi8tdCAGYLHYXK9VGeJXnp5xHFwX/pRvwjANJqlxhBt H1yH3Lq58cbj8j5zZPNKMK5QjlVHOzwOAHRssmViEM09yaDGWyx44OnC9rzzBo2T+kme dlyi/jRj0QS+uUewqW8OW5YX6gG8ujvPAlwHCDNE6xn8RZNOACiSm6Vi4bETN1tojGGj rBoi6ug4SidaN5dgi61ByZD9MbvXgF9N8R9Ohoe4LmFy6G9SA0y6Icn7k6Fk9oKbgFRW TJEw== 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=HxO9vkCO9qDuy0sBXr2sT9u/STTrAYDRFAnv5jq+Wj8=; b=d70xyPCxD3lN9DbWQx8mL/YLtDJ6K6FnxtdF7gzYze7lyODIDKOy+c+3uYob0uHOJK UZYWI/nn2rwaSF76JLMfBtv/mkDCNifdCE6SFoCMYizVwqCTKw9Wmsw6f8rVj0f3mNpd gTXuqjxW5KlnwOGt4zx5qOs9LgCcGcjLSe1PKqBUucH6NUVO1XLZ2Bui86Ps30tUsGQ+ 13u3Lj2RfoXsauy9CUjn/74QzfgaNM/M/DXnRTzeC52CB6QYb4oi0mZP+T1xUToCkKfU Ec1xq1RFxO6PH4WsoPsFh9Hp8gNnST3X00SYmpwGwb93Ox8klY7VWWynmVnJoaKeV4DS Ijgw== X-Gm-Message-State: AOPr4FWN66og7tVfKRndkdsu/o39S38GBnRUgXRK+oULoFWZ4uXLbVyoMhayVIBwqwKx56bO1JPADhkZapuLcg== MIME-Version: 1.0 X-Received: by 10.202.222.197 with SMTP id v188mr1669923oig.82.1463514556437; Tue, 17 May 2016 12:49:16 -0700 (PDT) Received: by 10.157.45.131 with HTTP; Tue, 17 May 2016 12:49:16 -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 12:49:16 -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 19:49:17 -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, ... > _______________________________________________ > > I do not have MEncoder : https://en.wikipedia.org/wiki/MEncoder ( http://www.mplayerhq.hu/ ) ( http://www.mplayerhq.hu/DOCS/HTML/en/index.html ) >From documentation , it seems that MEncoder can encode from TV , Radio , but I could not see web camera . Perhaps , it may encode from multiple network cameras ( see Section 3.4 : http://www.mplayerhq.hu/DOCS/HTML/en/streaming.html ) because each camera will have its own IP/address . I do not have a working FreeBSD . I tried in Fedora 20 x86_64 KDE ( Assume you have a KDE in your FreeBSD ) . I have attached two web cameras . I have started Cheese . It attached to one of the cameras . I have started Camorama . It attached to another of the cameras . A second copy of Cheese did not start . A second copy of Camorama did not start ( gave an error that "Could not connect to /dev/video0" ) . I have started UCView . It connected to /dev/video1 , but it did not show any image . Conclusions : No one of the programs has any menu item to select a web camera device to connect . No one of the programs are able to work in multiple copies . There are open source other programs you may try compile and run in multiple copies , but most of them are working with common libraries . Therefore you need to make modifications to these programs to allow them to connect to different web cameras , either from one program or from different programs . My knowledge is so much . Mehmet Erol Sanliturk