http://blog.gmane.org/gmane.comp.video.mjpeg.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.video.mjpeg.user/11319 <pre> Hi, I downloaded mjpegtools-2.0.0ext-mingw-bin.tar.bz2. MD5 and SHA1 are correct, but extraction fails: My output: prompt$ bunzip2 mjpegtools-2.0.0ext-mingw-bin.tar.bz2 prompt$ tar xvf mjpegtools-2.0.0ext-mingw-bin.tar bin/ bin/anytovcd.sh bin/jpeg2yuv.exe tar: Skipping to next header tar: A lone zero block at 2375 tar: Exiting with failure status due to previous errors Can anyone upload a non-broken version? kind regards, Kris. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ </pre> Kris Hermans 2012-04-30T19:40:38 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11311 <pre>Dear all, It might be that my question is a bit out of topic but I think you guys might be able to help. You maybe know that a couple of modern webcams output some kind of motion JPG image. The Logitech C905 webcam does so. The data is a jpg-image without DHT segment. With the help of google I managed to patch libjpeg to be able to decode these crippled jpg-images. The code can be found here http://svn.openrobotino.org/common/trunk/lib/rec/cv_lt/jpeg_dec.cpp Still it would be nice to take the webcam's output and stream it directly to a web browser. But because of the missing DHT segment browsers are not able to decode the data. My work around right now is to decode the data with my patched libjpeg and encode again as real jpg. This works but puts my embedded platform to almost 100% cpu load. The question is if there is a way to insert the missing DHT segment to the mjpg data without the need of decoding/encoding the image. Or is there a simple way to make a mpg1 stream from these mjpg single images comi</pre> Christian Verbeek 2011-11-18T09:27:20 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11284 <pre>Hi Guys, I'm wondering if anyone has some skeleton C code for writing multithreaded filters. Similar to this kind of pseudo code; while not end of file { read frame create threads (number of CPUs) for y = 1 to height { while no available threads { wait for a thread to finish; } run in thread { for x = 1 to width { process pixel} } } write frame } I've written a temporal bilateral filter and an nl-means filter and they are slow, so was looking to speed things up on my multi cpu machines. If not, I'll see if I can generate my own skeleton. Thanks Mark ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 </pre> Mark Heath 2011-09-21T22:21:43 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11275 <pre>Hallo I have added a patch from rstam to the CVS which enables lavrec to record from EM28XX USB driver based cards like the Pinnacle DVC100 (V4L2). This is needed when trying to capture full res PAL 704x576 movies, as stripes are appearing on the screen. With this patch the stripes are lessened but not gone. It seems to be caused by the encoding thread as far as I can find. Likely the software implementation costs too much time. If i take away the extra memcpy before doing the YUV packed -&gt; YUV planar conversion the stripes get worse. Increasing num_procs makes it worse too. Does anybody have a idea how to solve that problem ? Details about the patch can be found in the tracker: https://sourceforge.net/tracker/index.php?func=detail&amp;aid=3335498&amp;group_id=5776&amp;atid=305776 My holiday's are over, so I find again time to do something useful ;) auf hoffentlich bald, Berni the Chaos of Woodquarter Email: shadowlord&lt; at &gt;utanet.at www: http://www.lysator.liu.se/~gz/bernhard ----------------------------------</pre> Bernhard Praschinger 2011-08-15T11:17:08 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11273 <pre>是在世人的眼中，是一个花心不专情的人，毕竟我有这么多的妻子， 详 于疗完伤了？”就在萧炎巡视间，突然林焱那熟悉的声音忽然响起， 情 天鼠很温和地道。“力……炼兽！”毒音儿看了看炼天鼠，又看了看 请 么这么巧，居然在这个时候……”“小心点，别冲动！别让我提醒你 查 便是撕裂出一道空间裂楗，萧炎与青鳞身形一闪便是钻了进去。见到 阅 笑，倾国容貌展露无遗，全国上下盛传永宁公主乃是国色天香，几乎 附 么这么巧，居然在这个时候……”“小心点，别冲动！别让我提醒你 件 于疗完伤了？”就在萧炎巡视间，突然林焱那熟悉的声音忽然响起， ！ ------------------------------------------------------------------------------ Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek.</pre> 廉哲琇 2011-07-27T03:41:47 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11272 <pre>Hi all , I download "mjpegtools-2.0.0ext-mingw-bin.tar.bz2" from SourceForge, and I use command as follow: # tar jxvfp mjpegtools-2.0.0ext-mingw-bin.tar.bz2 but I got some errors: bin/ bin/anytovcd.sh bin/jpeg2yuv.exe tar: Skipping to next header tar: Archive contains obsolescent base-64 headers tar: Error exit delayed from previous errors I have check file's md5 and sha1 are correct. so I guess maybe file is broken ? Have anyone can help check it ? thx a lot. ------------------------------------------------------------------------------ Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey_______________________________________________ Mjpeg-users mailing list Mjpeg-users&lt; at &gt;lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users </pre> Jerry Wei 2011-07-27T03:31:28 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11270 <pre>Hallo I have added a patch from rstam to the cvs. The patch enables software based recording from devices based on a EM28xx cheipset. This devices are connected by USB, and are boxes like the DVC100 Pinnacle Dazzle Please download the current CVS, and test it. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: shadowlord&lt; at &gt;utanet.at www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 </pre> Bernhard Praschinger 2011-07-10T05:40:40 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11269 <pre> Dear Sirs or madams, I am writting you to have some details about the yuvdenoise filters. I am currently working on the improvement of compressed video quality with a preprocessor. I study state of the art of denoising and pre-filtering techniques in compression context. I have tested the yuvdenoise filter of Mjpegtools, which you developped, as preprocessor before compression, and I found very interesting results even for sequences not corrupted by noise, especially for the temporal filter followed by the « median 3D » filter. I would like to have some precisions concerning the concept of this processing (temporal filtre + post medain 3D filter), in order to understand why your algorithm is more effective than certain elaborated denoising filter. For these reasons, I wonder if you could communicate me some references of your work. Thanks for your time, I look forward to your reply, Kind regards, Eloïse Vidal ------------------------------</pre> Eloïse VIDAL 2011-06-20T15:42:31 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11266 <pre>Hallo as promised in the last mail I have put a RPM &amp;devel Package online on SF. I have compiled it on the 32bit OpenSuse 11.4 It should work on similair systems. Hannes has compiled the mjpegtools with mingw, that build works on Windows based systems. If someone compiles the mjpegtools on a MAC or debian. I will also put them online. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: shadowlord&lt; at &gt;utanet.at www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 </pre> Bernhard Praschinger 2011-05-28T06:33:07 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11261 <pre>I'm building mjpegtools with mingw32 gcc 4.5.2 and msys. When i configure it as-is, it detects my cpu as core2 (which is correct) and compiles with -mcpu=core2 -mtune=core2 It is commendable. However, i would like to compile a version that will run on any more-or-less contemporary device, which means either -mtune=i686 or -mtune=generic I've tried building with --host=i686-pc-mingw32 (that is how mingw32 often identifies itself), but hit the problem with sigjmp_buf being undefined (googling for it didn't do any good), and generic-pc-mingw32 fails outright, since `generic' is not a correct cpu. So, in the end i want two things: 1) -mtune=generic 2) undefined HAVE_X86_CPU, which will prevent sigjmp_buf-related code from being compiled ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development</pre> LRN 2011-02-07T11:01:49 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11258 <pre>I needed to make an animated screen shot (e.g., like a movie) of my terminal to send to someone. I found http://linuxdevcenter.com/pub/a/linux/2004/03/04/screen_capture_movies.html which works ok in general. It uses image magic "convert" to convert a bunch of miff files into an mpeg. Theoretically this should work but after a while it gives me an error message like "delegate mpeg2encode failed .. not found". I did a search for mpeg2encode for Linux CentOS 4.8 (what my machine is currently at) but could not find it. I did find mpeg2enc from the mjpeg package. So I built it and linked it, but it was called incorrectly. The original mpeg2encode is called as mpegencode inputfile outputfile however, mpeg2enc has different parameters. I figured out to use "-o output" for the output file name, but I cannot figure out what parameter to specify for the input (I made a dummy mpeg2encode to call mpeg2enc the correct way). I tried cat inputfile | mpeg2enc -o outputfile and mpeg2enc -o output</pre> tony.chamberlain< at >lemko.com 2011-01-28T13:57:16 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11256 <pre>Hallo I got a error report from a user that tries to compile the mjpegtools on a AMD K8 Architecture on a Opensuse 11.3 I have attached the output of the configure script. When I try to compile yuvdenoise with optimizations for my barcelona CPU. Everything is ok but when I compile it for the K8 I get a error: &gt; gcc -DHAVE_CONFIG_H -I. -I.. -I.. -I../utils -O3 -funroll-all-loops\ -ffast-math -march=k8 -mtune=k8 -g -O2 -pthread -Wall -Wunused -MT\ main.o -MD -MP -MF .deps/main.Tpo -c -o main.o main.c main.c: In function ‘filter_plane_median_sse2’: main.c:1035:3: error: ‘cnt’ undeclared (first use in this function) main.c:1035:3: note: each undeclared identifier is reported only once for each function it appears in main.c:1038:3: error: ‘avg’ undeclared (first use in this function) Uncommenting the two variables make the compile work, and yuvdenoise seems to work proper. Did anybody stumble across that problem by now ? auf hoffentlich bald, Berni the Chaos of Woodquarter Email: shadowl</pre> Bernhard Praschinger 2011-01-26T16:15:41 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11254 <pre>Hello everybody, Once again, I need to digitize some old tapes, so I reactivated my trusty mjpeg-tools. :) However, I noticed some of the tapes come out rather washed out when digitized, i.e., white is almost saturated, and it is difficult to discern any details (my tapes originate from a phase-contrast microscope, so they are grayscale to start with). Do the Zoran-type cards (I am using DC30) allow any software control over gain and/or offset? Is there any user-level possibility to change these settings? Thank you in advance, Primož </pre> Primoz PETERLIN 2011-01-24T13:39:48 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11253 <pre>Hello everybody, I'm using mplex (mjpegtools-1.9.0) in a customer project and I have some questions about the performance of this tool. The purpose of the project of my customer is to capture video (special HW of the customer) and audio signals (alsa) from an input device, to encode the video stream to mpeg2, to multiplex audio and the encoded video stream and to write this new stream to a DVD. This altogether has to run "on the fly". I'm running Linux 2.6.32_2 on an ARM9 controller Davinci DM365 (about 400MHz) and I'm using the appropriate SDK from TexasInstruments (It's version 12). For multiplexing I'm using mplex from the mjpegtools-1.9.0 package and for authoring the stream before writing on a DVD, I'm using dvdauthor. The encoder of the Davinci controller is able to create I-Frames and P-Frames but no B-Frames. I can configure the bitrate between 2MBit/s up to 6.5MBit/s (actuall I'm using 2MBit/s). The stream on the DVD has to be PAL (or NTSC) with 24 frames per sec. My problem now is, that I'm losin</pre> Reither, Frank 2011-01-11T07:31:32 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11248 <pre> &lt;mjpeg-users&lt; at &gt;lists.sourceforge.net&gt; this geometry I tried with your command, but I always get the same error. I have a doubt. When launching the command, there must be something attached to the card? (VCR, Camera ...). The entry that interests me is Composite 1 nor S-video, nor the Composite 0 ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d </pre> matrobriva< at >libero.it 2010-12-18T16:23:47 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11246 <pre> Hello everyone. When I try to capture a video with my Conexant BT848 capture card, I get this error: ** ERROR: [lavrec] Error queuing buffers: Device or resource busy The command I used is lavrec - software-encoding - format = a - input = P - quality = 100 - geometry = 912x576 file.avi Thanks, matrobriva ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d </pre> matrobriva< at >libero.it 2010-12-17T15:47:41 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11235 <pre>Hello all Just a quick question : using mjpegtools through ffmpeg piping. are they (or not) multi threaded ? ffmpeg -threads 2 -y -i - -f yuv4mpegpipe - | \ yuvdenoise -t 2,8,8 -m 2,8,8 | y4munsharp |\ ffmpeg -y -threads 2 -i - -b 220000k -vcodec dnxhd -threads 2 $fichier On (for say) a dual core (AMD or Intel) the gkrellm histogram shows a smaller activity on 1 core then alternates to the other core from time to time. Thanks a lot Edouard ------------------------------------------------------------------------------ Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev </pre> E Chalaron 2010-11-14T00:15:40 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11233 <pre>Hi, The yuvdenoise manpage says: |As it is self-adapting to the noise-situation found in the stream |you normally just can go without any options set: I would just like to have a confirmation that this assertion is not outdated ;-) c </pre> Christian Ebert 2010-10-21T12:21:29 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11233 <pre>Hi, The yuvdenoise manpage says: |As it is self-adapting to the noise-situation found in the stream |you normally just can go without any options set: I would just like to have a confirmation that this assertion is not outdated ;-) c </pre> Christian Ebert 2010-10-21T12:21:29 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11205 <pre>Hi, I'm using mpeg2enc from inside Kino and I notice some small white points flickering aroung the border of people, expecially if the background is quite dark. This definitely doesn't happen if I export from Kino through ffmpeg, nor if I play the DV movie with Kino or with any other player. Another place where it happens is around the datestamp in the bottom right corner of the movie (I working on old 8mm tapes, but they are still quite good). I call this thing "snow" because I really cannot find another word. Sorry, I don't speak english! I can provide a very small picture that illustrate the problem, but I guess I cannot post them as an attachment. Let me know if I can, or maybe I'll send it to whoever answer. Best regards. </pre> andrea 2010-10-07T17:37:22 http://comments.gmane.org/gmane.comp.video.mjpeg.user/11195 <pre>Continuing the tradition from past conferences, the LCA Multimedia Miniconf is back at Linux.conf.au 2011 (LCA2011). Linux.conf.au 2011 will be hosted in Brisbane, Australia from 24-29 January 2011 with the miniconfs being held over the first two days. For more information about the conference check out http://lca2011.linux.org.au/. Multimedia encapsulates a wide variety of topics: composition and playpack of video, audio and music. Submissions are now invited from those interested in giving presentations or short tutorials at the Multimedia miniconf on any topic related to opensource multimedia software, such as the following: * exciting new additions to existing software * development of new multimedia programs * how to set Linux up for multimedia composition, authoring and/or playback * great user experiences with open source multimedia software * legal issues surrounding multimedia content and its use with open source software * descriptions of multimedia workflows: tools used, process</pre> Jonathan Woithe 2010-09-09T13:52:09 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.video.mjpeg.user