Date: Mon, 29 Oct 2001 20:27:50 -0800 (PST) From: bruno schwander <bschwand@dvart.com> To: Pete McKenna <pmckenna@qwest.net> Cc: Erich Zigler <needo@superhero.org>, Randall Hopper <aa8vb@nc.rr.com>, multimedia@freebsd.org Subject: Re: FXTV and real-time capture/encoding Message-ID: <Pine.BSF.4.21.0110292016230.87570-100000@mail.dvart.com> In-Reply-To: <20011025155226.B54563@otto.oss.qwest.net>
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seems that avi files have the header info at the _end_ of the file, so premature death of ffmpeg leaves the avi in unplayable state. I added a little fix for this, and it seems to work pretty well now, also in mpeg4. http://www.tinkerbox.org/projects/files/fxtv.ffmpeg/fxtv-1.03.ffmpeg2-4.tgz please check it out and let me know of success/failure... bruno On Thu, 25 Oct 2001, Pete McKenna wrote: > I have an Athlon 850. > I started with 30 fps but the capture never started. > When I turned it down to 15-25 fps it will run, but as I said > It creates broken files as far as mplayer is concerned. I can try other > players and provide files if there's interest. This is all from > antennae source on the bt848. I can try video and s-video too. > > Pete > > On Thu, Oct 25, 2001 at 01:06:45PM -0700, bruno schwander wrote: > > Right, I never tested multiple scratch files, sorry. Your file name > > handling is certainly the correct way ! > > > > The fact that realtime encoding does not work for you, even in mpeg1 is > > interesting. For Erich Zigler <erichz@superhero.org> mpeg1 works but never > > mpeg4. For me mpeg1 works, and occasionaly mpeg4 works too. > > > > Maybe it is performance related ? weird. I posted a question on the ffmpeg > > list, maybe someone can analyze the faulty mpeg4 avi that are produced. > > > > what kind of machine do you have ? (cpu/freq) > > > > bruno > > > > On Wed, 24 Oct 2001, Pete McKenna wrote: > > > > > Bruno thanks, > > > > > > I've played with it a bit and found that multiple scratch files > > > seems broken. I changed the following in the fxtv_cnvt.sh script > > > and it worked for me. > > > > > > videoSource="$videoSource -i $VIDFIFO -y \ > > > -vcodec $IMAGE_TARGET_FMT \ > > > $TARGET_FN_BASE.$FFM_OUT_EXT " > > > # ${AV_RAW_FILES%%.AVraw}.$FFM_OUT_EXT " > > > > > > This, as a side effect names the final output the same as the > > > name entered in the fxtv window plus the extension which I > > > like better than scratch.AVraw.ext anyway. > > > > > > I haven't been able to get any realtime encoding to work yet. > > > mplayer crabs like this. > > > > > > ==> Found video stream: 0 > > > ==> Found audio stream: 1 > > > AVI: missing video stream!? contact the author, it may be a bug :( > > > > > > > > > I got similar results with mpeg1, but I'll keep poking around. > > > > > > Pete > > > > > > > > > > > > > > > On Wed, Oct 24, 2001 at 12:26:58AM -0700, bruno schwander wrote: > > > > may your wish be granted... > > > > > > > > http://www.tinkerbox.org/projects/fxtv.html > > > > > > > > specific comments, bugs, contributions to bruno at tinkerbox.org , > > > > otherwise I follow general discussion on this list too. > > > > > > > > bruno > > > > > > > > PS: I know, spaghetti code, sorry... > > > > > > > > On Tue, 23 Oct 2001, Randall Hopper wrote: > > > > > > > > > Erich Zigler: > > > > > |Yeah I finally figured out the problem last night. It only took a couple > > > > > |holes in the wall and pulling out all my hair. :) > > > > > ... > > > > > |Thanks for all of your suggestions. I really enjoy your program. Now if only > > > > > |encoding didn't take up so much disk space I'd be in heaven. :) > > > > > > > > > > Yeah, you aren't kidding! Way too much space! As soon as bruno has a > > > > > patch for RTJPEG/MPEG4/whatever with any other encoder that generates good > > > > > results (hopefully one we can stream to!), we'll ditch mpeg_encode. > > > > > > > > > > Randall > > > > > > > > > > -- > > > > > Randall Hopper > > > > > aa8vb@nc.rr.com > > > > > > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > > with "unsubscribe freebsd-multimedia" in the body of the message > > > > > > -- > > > Peter McKenna Qwest Internet Solutions > > > pmckenna@qwest.net Main 612-664-4000 > > > FAX 612-664-4770 > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-multimedia" in the body of the message > > > > > -- > Peter McKenna Qwest Internet Solutions > pmckenna@qwest.net Main 612-664-4000 > FAX 612-664-4770 > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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