From owner-freebsd-multimedia@freebsd.org Fri Sep 23 09:04:34 2016 Return-Path: Delivered-To: freebsd-multimedia@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 18282BE69CB for ; Fri, 23 Sep 2016 09:04:34 +0000 (UTC) (envelope-from robert.burmeister@utoledo.edu) Received: from mbob.nabble.com (mbob.nabble.com [162.253.133.15]) by mx1.freebsd.org (Postfix) with ESMTP id 09BEEFE8 for ; Fri, 23 Sep 2016 09:04:33 +0000 (UTC) (envelope-from robert.burmeister@utoledo.edu) Received: from malf.nabble.com (unknown [162.253.133.59]) by mbob.nabble.com (Postfix) with ESMTP id 1645431E3181 for ; Fri, 23 Sep 2016 02:01:03 -0700 (PDT) Date: Fri, 23 Sep 2016 02:04:32 -0700 (PDT) From: Robert_Burmeister To: freebsd-multimedia@freebsd.org Message-ID: <1474621472428-6132215.post@n6.nabble.com> In-Reply-To: <20160921100328.GB20039@marvin2011.fritz.box> References: <57E21592.4090705@UToledo.edu> <20160921100328.GB20039@marvin2011.fritz.box> Subject: Re: FreeBSD Port: multimedia/ffmpeg MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2016 09:04:34 -0000 I am using an Intel Core2 Duo 8400 with CPUTYPE?=core2 and a Nvidia 210 graphics card for OpenGL. Toggling SSE off and recompiling FFMPEG resolves the crash, while still using additional flags: MMX, OPENGL, OPTIMIZED_CFLAGS, VAAPI & VDPAU. I have been toggling compile options for several years trying to get FFMPEG2+ to work; I did not think to try toggling SSE as this instruction set has been around since the original Pentium and Athlon processors, and I assumed that it was well understood and universally supported. Until today, I was unaware of the degree of volatility and discussion of CPU typing that has been going on in LLVM development. A note mentioning SSE bugs in older processors in UPDATING would be helpful, as would documenting the FFMPEG configuration option something like "SSE=on: Use SSE optimized routines (Set to off for core2 and previous CPUs)" -- View this message in context: http://freebsd.1045724.x6.nabble.com/FreeBSD-Port-multimedia-ffmpeg-tp6131737p6132215.html Sent from the freebsd-multimedia mailing list archive at Nabble.com.