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  • Demande de création d’un canal

    12 mars 2010, par

    En fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
    Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

Sur d’autres sites (11099)

  • Combining JavaCV and openCV

    13 juin 2014, par mister-viper

    I have the following problem :
    I have an Android application which uses native OpenCV code. In a first step, the frames which were edited by OpenCV came from the camera. Then they were processed and drawn on the display.

    However, my requirements now have changed. The frames which have to be edited come from a video file stored on the SD card. They must be processed by the openCV code and then stored in a new video file.

    After reading some a lot of stuff, I recognized that Android has no built-in stuff for correctly reading a video file frame by frame and allowing to process the frames while doing so. On a computer OpenCV has the VideoCapture function. But this does not work on Android as openCV has no ffmpeg that comes with it.

    After reading more stuff, I found that JavaCV comes with an FFMPEGFrameGrabber and also an FFMPEGFrameRecorder. So, I implemented everything which now allows me to grab single frames from a video, obtain an IplImage frame and store this frame in a new video.

    Now the problem :
    During obtaining and storing the IplImage frame must be processed using the original OpenCV code as it is not feasible to port the complete code to JavaCV.

    So in a first place I wrote a small test JNI function which gets the address of a MAT object and draws a small circle on it.

    extern "C" {
    JNIEXPORT void JNICALL Java_de_vion_postprocessing_step2_EyeTracking_editFrame(
       JNIEnv*, jobject, jlong thiz, jlong addrRgba) {
    //Convert the mat addresses into the objects
    Mat& rgbFrame = *(Mat*) addrRgba;

    Point2i scaledSmoothPoint(100,100);
    circle(rgbFrame, scaledSmoothPoint, 20, YELLOW, -1);
    }

    As I read that IplImage extends CvArr I just call the function within in my code as follows :

    captured_frame = grabber.grab();
    if (captured_frame == null) {
       // no new frames
       break;
    }
    editFrame(captured_frame .address());

    However, I now get the following error :

    06-12 18:58:23.135: E/cv::error()(6498): OpenCV Error: Assertion failed (cn <= 4) in
                       void cv::scalarToRawData(const Scalar&, void*, int, int), file
                       /home/reports/ci/slave_desktop/50-SDK/opencv/modules/core/src/matrix.cpp, line 845
    06-12 18:58:23.135: A/libc(6498): Fatal signal 6 (SIGABRT) at 0x00001962 (code=-6),
                       thread 6526 (AsyncTask #1)

    Finally, me question :
    How can I process the IplImage frame using nativeOpenCV and finally store this IplImage frame then in the video recorder.

    I am also open to new Ideas which do not necessarily require JavaCV as long as I do not have to write the FrameGrabber and FrameRecorder my self.

    Best regards,
    André

  • Dreamcast SD Adapter and DreamShell

    31 décembre 2014, par Multimedia Mike — Sega Dreamcast

    Nope ! I’m never going to let go of the Sega Dreamcast hacking. When I was playing around with Dreamcast hacking early last year, I became aware that there is such a thing as an SD card adapter for the DC that plugs into the port normally reserved for the odd DC link cable. Of course I wanted to see what I could do with it.

    The primary software that leverages the DC SD adapter is called DreamShell. Working with this adapter and the software requires some skill and guesswork. Searching for these topics tends to turn up results from various forums where people are trying to cargo-cult their way to solutions. I have a strange feeling that this post might become the unofficial English-language documentation on the matter.

    Use Cases
    What can you do with this thing ? Undoubtedly, the primary use is for backing up (ripping) the contents of GD-ROMs (the custom optical format used for the DC) and playing those backed up (ripped) copies. Presumably, users of this device leverage the latter use case more than the former, i.e., download ripped games, load them on the SD card, and launch them using DreamShell.

    However, there are other uses such as multimedia playback, system exploration, BIOS reprogramming, high-level programming, and probably a few other things I haven’t figured out yet.

    Delivery
    I put in an order via the dc-sd.com website and in about 2 short months, the item arrived from China. This marked my third lifetime delivery from China and curiously, all 3 of the shipments have pertained to the Sega Dreamcast.


    Dreamcast SD Adapter package

    Click for larger image


    I thought it was very interesting that this adapter came in such complete packaging. The text is all in Chinese, though the back states “Windows 98 / ME / 2000 / XP, Mac OS 9.1, LINUX2.4”. That’s what tipped me off that they must have just cannibalized some old USB SD card readers and packaging in order to create these. Closer inspection of the internals through the translucent pink case confirms this.

    Usage
    According to its change log, DreamShell has been around for a long time with version 1.0.0 released in February of 2004. The current version is 4.0.0 RC3. There are several downloads available :

    1. DreamShell 4.0 RC 3 CDI Image
    2. DreamShell 4.0 RC 3 + Boot Loader
    3. DreamShell 4.0 RC 3 + Core CDI image

    Option #2 worked for me. It contains a CDI disc image and the DreamShell files in a directory named DS/.

    Burn the CDI to a CD-R in the normal way you would burn a bootable Dreamcast disc from a CDI image. This is open-ended and left as an exercise to the reader, since there are many procedures depending on platform. On Linux, I used a small script I found once called burncdi-dc.sh.

    Then, copy the contents of the DS/ folder to an SD card. As for filesystem, FAT16 and FAT32 are both known to work. The files in DS/ should land in the root of the SD card ; the folder DS/ should not be in the root.

    Plug the SD card into the DC SD adapter and plug the adapter in the link cable port on the back of the Dreamcast. Then, boot the disc. If it works, you will see this minor corruption of the usual Sega licensing screen :


    DreamShell logo on Dreamcast startup

    Then, there will be a brief white-on-black text screen that explains the booting process :


    DreamShell booting text

    Then, there will be the main DreamShell logo :


    DreamShell logo

    Finally, you will land on the DreamShell main desktop :


    DreamShell 4.0.0 RC3 main desktop

    Skepticism
    At first, I was supremely skeptical of the idea that this SD adapter could perform speedily enough to play games reasonably. This was predicated on the observation that my DC coder’s cable that I used to use for homebrew development could not transfer faster than 115200 bits/second, amounting to about 11 kbytes/sec. I assumed that this was a fundamental limitation of the link port.

    In fact, I ripped a few of my Dreamcast discs over a decade ago and still have those rips lying around. So I copied the ISO image of Resident Evil : Code Veronica — the game I personally played most on the DC — to the SD card (anywhere works) and used the “ISO loader” icon seen on the desktop above to launch the game.

    It works :


    Resident Evil: Code Veronica title

    The opening FMV plays at full speed. Everything loads as fast as I remember. I was quite surprised.

    Digression : My assumptions about serial speeds have often been mistaken. 10 years ago, I heard stories about how we would soon be able to watch streaming video on our cell phones. I scoffed because I thought the 56K limitation of dialup modems was some sort of fundamental speed-of-light type of limitation for telephony bandwidth, wired or wireless.

    The desktop menu also includes a ‘speedtest’ tool that profiles the write and read performance of your preferred storage medium. For my fastest SD card (a PNY 2 GB card) :


    DreamShell speedtest utility

    This is probably more representative of the true adapter bandwidth as reading and writing is a good deal faster through more modern interfaces on PC and Mac with this same card.

    Look at the other options on the speedtest console. Hard drive ? Apparently, it’s possible, but it requires a good deal more hardware hacking than just purchasing this SD adapter.

    Ripping
    As you can see from the Resident Evil screenshot, playing games works quite nicely. How about ripping ? I’m pleased to say that DreamShell has a beautiful ripping interface :


    Ripping a GD-ROM using DreamShell

    Enter a name for the disc (or read the disc label), select the storage medium, and let it, well, rip. It indicates which track it’s working on and the Sega logo acts as a progress bar, shading blue as the track rip progresses.

    I’m finally, efficiently, archiving that collection of Sega Dreamcast demo discs ; I’m hoping they’ll eventually find a home at the Internet Archive. How is overall ripping performance ? Usually about 38-40 minutes to rip a full 900-1000 MB. That certainly beats the 27-28 hours that were required when I performed the ripping at 11 kbytes/sec via the DC coders cable.

    All is well until I get a sector reading error :


    DreamShell ripping error

    That’s when it can come in handy to have 3 DC consoles (see ?! not crazy !).

    Other Uses
    There’s a file explorer. You can browse the filesystem of the SD card, visual memory unit, or the CD portion of the GD-ROM (would be more useful if it accessed the GD area). There are FFmpeg files included. So I threw a random Cinepak file and random MPEG-1 file at it to see what happens. MPEG-1 didn’t do anything, but this Cinepak file from some Sierra game played handily :


    DreamShell playing Cinepak

    If you must enter strings, it helps to have a Dreamcast keyboard (which I do). Failing that, here’s a glimpse of the onscreen keyboard that DreamShell equips :


    DreamShell onscreen keyboard

    Learning to use it is a game in itself.

    There is an option of installing DreamShell in the BIOS. I did not attempt this. I don’t know if it’s possible (not like there’s a lot of documentation)– perhaps a custom BIOS modchip is needed. But here’s what the screen looks like :


    DreamShell BIOS installation menu

    There is also a plain console to interact with (better have a physical keyboard). There are numerous file manipulation commands and custom system interaction commands. I see one interesting command called ‘addr’ that looks useful for dumping memory regions to a file.

    A Lua language interpreter is also built in. I would love to play with this if I could ascertain whether DreamShell provided Dreamcast-specific APIs.

    Tips And Troubleshooting
    I have 3 Dreamcast consoles, affectionately named Terran, Protoss, and Zerg after the StarCraft II stickers with which they are adorned. Some seem to work better than others. Protoss seemed to be able to boot the DreamShell disc more reliably than the others. However, I was alarmed when it couldn’t boot one morning when it was churning the previous day.

    I think the problem is that it was just cold. That seemed to be the issue. I put in a normal GD-ROM and let it warm up on that disc for awhile and then DreamShell booted fine. So that’s my piece of cargo-culting troubleshooting advice.

  • Issue trying to stream RTSP to RTMP (live) through NGINX

    30 juin 2016, par taansari

    I want live RTMP streaming through nginx. I setup this server on a public ip (linux - CentOS), using this tutorial : https://notehub.org/rcfdu.

    My target is : RTSP source -> transcode to RTMP -> recieve on nginx (live ip),

    Then, I want to receive this stream through server ; something like :

    nginx -> ffplay.

    On transmission side, I have ffmpeg application, and on receiver side, I have ffplay application.

    I have setup everything I could think of, and I can see it is properly setup (apparently). But, when I try to stream using similar command :

    ffmpeg -i rtsp://aaa.bb.ccc.ddd/vod/mp4:filename.mov -f mpegts rtmp://<live ip="ip" address="address">:1935/live/
    </live>

    I get lots of messages (where everything looks alright) :

    ffmpeg -i rtsp://aaa.bb.ccc.ddd/vod/mp4:filename.mov -f mpegts rtmp://<live ip="ip" address="address">:1935/live/
    ffmpeg version N-80386-g5f5a97d Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 5.4.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-nv
    enc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enabl
    e-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --en
    able-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libil
    bc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-
    amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-
    librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-li
    bspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo
    -amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libweb
    p --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-l
    ibzimg --enable-lzma --enable-decklink --enable-zlib
     libavutil      55. 24.100 / 55. 24.100
     libavcodec     57. 46.100 / 57. 46.100
     libavformat    57. 38.100 / 57. 38.100
     libavdevice    57.  0.101 / 57.  0.101
     libavfilter     6. 46.101 /  6. 46.101
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
     libpostproc    54.  0.100 / 54.  0.100
    [rtsp @ 03087ca0] UDP timeout, retrying with TCP
    Input #0, rtsp, from 'rtsp://aaa.bb.ccc.ddd/vod/mp4:filename.mov':
     Metadata:
       title           : filename.mov
     Duration: 00:09:56.46, start: 0.000000, bitrate: N/A
       Stream #0:0: Audio: aac (LC), 48000 Hz, stereo, fltp
       Stream #0:1: Video: h264 (Constrained Baseline), yuv420p, 240x160, 24 fps, 4
    8 tbr, 90k tbn, 48 tbc
    [mpegts @ 04d033a0] Using AVStream.codec to pass codec parameters to muxers is d
    eprecated, use AVStream.codecpar instead.
       Last message repeated 1 times
    Output #0, mpegts, to 'rtmp://<live ip="ip" address="address">:1935/live/':
     Metadata:
       title           : filename.mov
       encoder         : Lavf57.38.100
       Stream #0:0: Video: mpeg2video (Main), yuv420p, 240x160, q=2-31, 200 kb/s, 2
    4 fps, 90k tbn, 24 tbc
       Metadata:
         encoder         : Lavc57.46.100 mpeg2video
       Side data:
         cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
       Stream #0:1: Audio: mp2, 48000 Hz, stereo, s16, 384 kb/s
       Metadata:
         encoder         : Lavc57.46.100 mp2
    Stream mapping:
     Stream #0:1 -> #0:0 (h264 (native) -> mpeg2video (native))
     Stream #0:0 -> #0:1 (aac (native) -> mp2 (native))
    Press [q] to stop, [?] for help
    Past duration 0.999992 too large
       Last message repeated 4 times
    frame=   85 fps=0.0 q=2.9 size=     322kB time=00:00:03.85 bitrate= 684.4kbits/s
    frame=   95 fps= 94 q=3.5 size=     366kB time=00:00:04.28 bitrate= 698.9kbits/s
    frame=  108 fps= 71 q=3.7 size=     421kB time=00:00:04.79 bitrate= 719.9kbits/s
    frame=  122 fps= 61 q=4.1 size=     478kB time=00:00:05.34 bitrate= 733.1kbits/s
    frame=  134 fps= 53 q=4.5 size=     527kB time=00:00:05.87 bitrate= 735.8kbits/s
    frame=  146 fps= 48 q=5.2 size=     579kB time=00:00:06.35 bitrate= 747.2kbits/s
    frame=  159 fps= 45 q=5.5 size=     632kB time=00:00:06.88 bitrate= 751.9kbits/s
    frame=  171 fps= 42 q=5.3 size=     677kB time=00:00:07.38 bitrate= 751.5kbits/s
    frame=  183 fps= 40 q=5.6 size=     725kB time=00:00:07.91 bitrate= 750.8kbits/s
    frame=  193 fps= 38 q=6.3 size=     765kB time=00:00:08.34 bitrate= 750.7kbits/s
    frame=  207 fps= 37 q=6.6 size=     820kB time=00:00:08.89 bitrate= 755.2kbits/s
    frame=  219 fps= 36 q=6.6 size=     865kB time=00:00:09.40 bitrate= 754.2kbits/s
    frame=  231 fps= 35 q=7.2 size=     911kB time=00:00:09.90 bitrate= 753.6kbits/s
    frame=  243 fps= 34 q=7.4 size=     959kB time=00:00:10.40 bitrate= 754.6kbits/s
    frame=  255 fps= 34 q=6.7 size=    1002kB time=00:00:10.91 bitrate= 752.1kbits/s
    frame=  267 fps= 33 q=5.5 size=    1047kB time=00:00:11.41 bitrate= 751.4kbits/s
    frame=  279 fps= 33 q=4.6 size=    1088kB time=00:00:11.89 bitrate= 749.1kbits/s
    frame=  291 fps= 32 q=6.1 size=    1140kB time=00:00:12.42 bitrate= 751.4kbits/s
    frame=  301 fps= 31 q=6.7 size=    1181kB time=00:00:12.85 bitrate= 752.5kbits/s
    frame=  314 fps= 31 q=6.6 size=    1231kB time=00:00:13.40 bitrate= 752.1kbits/s
    frame=  325 fps= 31 q=7.0 size=    1275kB time=00:00:13.86 bitrate= 753.0kbits/s
    frame=  338 fps= 30 q=6.7 size=    1324kB time=00:00:14.36 bitrate= 754.8kbits/s
    frame=  349 fps= 30 q=6.5 size=    1368kB time=00:00:14.87 bitrate= 753.5kbits/s
    frame=  362 fps= 30 q=6.8 size=    1415kB time=00:00:15.37 bitrate= 753.9kbits/s
    frame=  373 fps= 30 q=6.2 size=    1457kB time=00:00:15.88 bitrate= 751.7kbits/s
    frame=  387 fps= 30 q=3.8 size=    1506kB time=00:00:16.45 bitrate= 749.7kbits/s
    frame=  400 fps= 29 q=4.1 size=    1549kB time=00:00:16.96 bitrate= 748.2kbits/s
    frame=  415 fps= 29 q=5.4 size=    1597kB time=00:00:17.56 bitrate= 744.9kbits/s
    frame=  427 fps= 29 q=5.2 size=    1639kB time=00:00:18.04 bitrate= 744.1kbits/s
    frame=  439 fps= 29 q=4.4 size=    1679kB time=00:00:18.56 bitrate= 740.6kbits/s
    frame=  451 fps= 29 q=3.6 size=    1717kB time=00:00:19.07 bitrate= 737.4kbits/s
    frame=  464 fps= 28 q=2.6 size=    1761kB time=00:00:19.67 bitrate= 733.2kbits/s
    frame=  475 fps= 28 q=7.0 size=    1799kB time=00:00:20.08 bitrate= 734.0kbits/s
    frame=  488 fps= 28 q=8.3 size=    1847kB time=00:00:20.70 bitrate= 730.8kbits/s
    frame=  502 fps= 28 q=5.9 size=    1895kB time=00:00:21.25 bitrate= 730.2kbits/s
    frame=  515 fps= 28 q=3.3 size=    1935kB time=00:00:21.76 bitrate= 728.5kbits/s
    frame=  528 fps= 28 q=2.5 size=    1976kB time=00:00:22.31 bitrate= 725.6kbits/s
    frame=  540 fps= 28 q=3.4 size=    2017kB time=00:00:22.81 bitrate= 724.2kbits/s
    frame=  553 fps= 28 q=6.2 size=    2072kB time=00:00:23.36 bitrate= 726.2kbits/s
    frame=  568 fps= 28 q=6.7 size=    2132kB time=00:00:23.94 bitrate= 729.3kbits/s
    frame=  580 fps= 28 q=6.8 size=    2174kB time=00:00:24.42 bitrate= 729.3kbits/s
    frame=  592 fps= 27 q=6.8 size=    2219kB time=00:00:24.92 bitrate= 729.3kbits/s
    frame=  604 fps= 27 q=7.4 size=    2263kB time=00:00:25.43 bitrate= 728.8kbits/s
    frame=  615 fps= 27 q=6.1 size=    2305kB time=00:00:25.93 bitrate= 727.9kbits/s
    frame=  626 fps= 27 q=7.4 size=    2339kB time=00:00:26.36 bitrate= 726.5kbits/s
    frame=  638 fps= 27 q=6.8 size=    2383kB time=00:00:26.89 bitrate= 725.8kbits/s
    frame=  651 fps= 27 q=5.8 size=    2436kB time=00:00:27.47 bitrate= 726.5kbits/s
    frame=  662 fps= 27 q=7.0 size=    2471kB time=00:00:27.90 bitrate= 725.4kbits/s
    frame=  675 fps= 27 q=5.9 size=    2523kB time=00:00:28.40 bitrate= 727.6kbits/s
    frame=  679 fps= 26 q=6.8 size=    2534kB time=00:00:28.57 bitrate= 726.5kbits/s
    frame=  703 fps= 27 q=8.0 size=    2622kB time=00:00:29.58 bitrate= 726.1kbits/s
    frame=  714 fps= 27 q=7.6 size=    2662kB time=00:00:30.08 bitrate= 724.7kbits/s
    frame=  729 fps= 27 q=6.5 size=    2712kB time=00:00:30.68 bitrate= 724.0kbits/s
    frame=  741 fps= 27 q=7.0 size=    2753kB time=00:00:31.14 bitrate= 724.1kbits/s
    frame=  755 fps= 27 q=7.5 size=    2801kB time=00:00:31.76 bitrate= 722.2kbits/s
    frame=  767 fps= 26 q=7.2 size=    2842kB time=00:00:32.27 bitrate= 721.5kbits/s
    frame=  779 fps= 26 q=6.8 size=    2881kB time=00:00:32.77 bitrate= 720.0kbits/s
    frame=  791 fps= 26 q=8.2 size=    2922kB time=00:00:33.30 bitrate= 718.8kbits/s
    frame=  803 fps= 26 q=7.0 size=    2961kB time=00:00:33.76 bitrate= 718.4kbits/s
    frame=  816 fps= 26 q=6.6 size=    3003kB time=00:00:34.33 bitrate= 716.4kbits/s
    frame=  828 fps= 26 q=6.4 size=    3044kB time=00:00:34.84 bitrate= 715.7kbits/s
    frame=  840 fps= 26 q=7.5 size=    3084kB time=00:00:35.34 bitrate= 714.7kbits/s
    frame=  855 fps= 26 q=5.0 size=    3137kB time=00:00:35.94 bitrate= 714.8kbits/s
    frame=  866 fps= 26 q=6.2 size=    3169kB time=00:00:36.40 bitrate= 713.3kbits/s
    frame=  880 fps= 26 q=5.9 size=    3219kB time=00:00:36.95 bitrate= 713.6kbits/s
    frame=  892 fps= 26 q=6.8 size=    3259kB time=00:00:37.43 bitrate= 713.2kbits/s
    frame=  904 fps= 26 q=5.3 size=    3300kB time=00:00:37.96 bitrate= 712.2kbits/s
    frame=  916 fps= 26 q=5.5 size=    3338kB time=00:00:38.46 bitrate= 711.0kbits/s
    frame=  928 fps= 26 q=5.5 size=    3377kB time=00:00:38.94 bitrate= 710.4kbits/s
    frame=  941 fps= 26 q=6.4 size=    3422kB time=00:00:39.52 bitrate= 709.4kbits/s
    frame=  953 fps= 26 q=5.4 size=    3460kB time=00:00:40.00 bitrate= 708.6kbits/s
    frame=  967 fps= 26 q=5.2 size=    3506kB time=00:00:40.60 bitrate= 707.3kbits/s
    frame=  979 fps= 26 q=4.8 size=    3546kB time=00:00:41.12 bitrate= 706.2kbits/s
    frame=  985 fps= 26 q=5.2 size=    3563kB time=00:00:41.36 bitrate= 705.6kbits/s
    frame= 1008 fps= 26 q=4.8 size=    3639kB time=00:00:42.30 bitrate= 704.6kbits/s
    frame= 1022 fps= 26 q=4.3 size=    3684kB time=00:00:42.88 bitrate= 703.7kbits/s
    frame= 1034 fps= 26 q=4.5 size=    3723kB time=00:00:43.38 bitrate= 702.9kbits/s
    frame= 1046 fps= 26 q=3.8 size=    3763kB time=00:00:43.88 bitrate= 702.5kbits/s
    frame= 1056 fps= 26 q=5.3 size=    3800kB time=00:00:44.32 bitrate= 702.3kbits/s
    frame= 1069 fps= 26 q=5.5 size=    3842kB time=00:00:44.84 bitrate= 701.8kbits/s
    frame= 1081 fps= 26 q=6.3 size=    3883kB time=00:00:45.35 bitrate= 701.3kbits/s
    frame= 1093 fps= 26 q=6.3 size=    3925kB time=00:00:45.85 bitrate= 701.1kbits/s
    frame= 1105 fps= 26 q=5.3 size=    3964kB time=00:00:46.36 bitrate= 700.5kbits/s
    frame= 1117 fps= 26 q=6.7 size=    4006kB time=00:00:46.86 bitrate= 700.3kbits/s
    frame= 1129 fps= 26 q=4.5 size=    4046kB time=00:00:47.32 bitrate= 700.4kbits/s
    frame= 1141 fps= 26 q=7.1 size=    4089kB time=00:00:47.87 bitrate= 699.8kbits/s
    Larger timestamp than 24-bit: 0x310042f0
    WriteN, RTMP send error 10054 (133 bytes)
    WriteN, RTMP send error 10054 (35 bytes)
    WriteN, RTMP send error 10038 (42 bytes)
    av_interleaved_write_frame(): Operation not permitted
    Error writing trailer of rtmp://<live ip="ip" address="address">:1935/live/: Operation not permitte
    dframe= 1143 fps= 25 q=8.1 Lsize=    4109kB time=00:00:47.92 bitrate= 702.5kbits
    /s dup=0 drop=5 speed=1.07x
    video:1343kB audio:2248kB subtitle:0kB other streams:0kB global headers:0kB muxi
    ng overhead: 14.429363%
    Conversion failed!
    </live></live></live>

    but in the end, I get this error :

    WriteN, RTMP send error 10054 (133 bytes)
    WriteN, RTMP send error 10054 (35 bytes)
    WriteN, RTMP send error 10038 (42 bytes)
    av_interleaved_write_frame(): Operation not permitted
    Error writing trailer of rtmp://<live ip="ip" address="address">:1935/live/: Operation not permitte
    dframe= 1143 fps= 25 q=8.1 Lsize=    4109kB time=00:00:47.92 bitrate= 702.5kbits
    /s dup=0 drop=5 speed=1.07x
    video:1343kB audio:2248kB subtitle:0kB other streams:0kB global headers:0kB muxi
    ng overhead: 14.429363%
    Conversion failed!
    </live>

    On the receiver side (where ffplay is running), I always get this error :

    RTMP_ReadPacket, failed to read RTMP packet headersq=    0B f=0/0
       rtmp://<live ip="ip" address="address">:1935/live/: Invalid data found when processing input
    </live>

    Detailed output :

    ffplay rtmp://<live ip="ip" address="address">:1935/live/
    ffplay version N-80386-g5f5a97d Copyright (c) 2003-2016 the FFmpeg developers
     built with gcc 5.4.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-nv
    enc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enabl
    e-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --en
    able-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libil
    bc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-
    amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-
    librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-li
    bspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo
    -amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libweb
    p --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-l
    ibzimg --enable-lzma --enable-decklink --enable-zlib
     libavutil      55. 24.100 / 55. 24.100
     libavcodec     57. 46.100 / 57. 46.100
     libavformat    57. 38.100 / 57. 38.100
     libavdevice    57.  0.101 / 57.  0.101
     libavfilter     6. 46.101 /  6. 46.101
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
     libpostproc    54.  0.100 / 54.  0.100
    RTMP_ReadPacket, failed to read RTMP packet headersq=    0B f=0/0
    rtmp://<live ip="ip" address="address">:1935/live/: Invalid data found when processing input
    </live></live>

    and if I enable debug mode, this is the receiving side log :

    ffplay -loglevel debug rtmp://<live ip="ip" address="address">:1935/live/
    ffplay version N-80386-g5f5a97d Copyright (c) 2003-2016 the FFmpeg developers
     built with gcc 5.4.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-nv
    enc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enabl
    e-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --en
    able-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libil
    bc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-
    amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-
    librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-li
    bspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo
    -amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libweb
    p --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-l
    ibzimg --enable-lzma --enable-decklink --enable-zlib
     libavutil      55. 24.100 / 55. 24.100
     libavcodec     57. 46.100 / 57. 46.100
     libavformat    57. 38.100 / 57. 38.100
     libavdevice    57.  0.101 / 57.  0.101
     libavfilter     6. 46.101 /  6. 46.101
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
     libpostproc    54.  0.100 / 54.  0.100
    [rtmp @ 0310d800] No default whitelist set    0KB sq=    0B f=0/0
    Parsing... :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
    Parsed protocol: 0
    Parsed host    : <live ip="ip" address="address">
    Parsed app     : live
    RTMP_Connect1, ... connected, handshaking=    0KB sq=    0B f=0/0
    HandShake: Type Answer   : 03q=    0KB vq=    0KB sq=    0B f=0/0
    HandShake: Server Uptime : 324510454
    HandShake: FMS Version   : 0.0.0.0
    HandShake: Handshaking finished....0KB vq=    0KB sq=    0B f=0/0
    RTMP_Connect1, handshaked
    RTMP_SendPacket: fd=648, size=174
     0000:  03 00 00 00 00 00 ae 14  00 00 00 00               ............
     0000:  02 00 07 63 6f 6e 6e 65  63 74 00 3f f0 00 00 00   ...connect.?....
     0010:  00 00 00 03 00 03 61 70  70 02 00 04 6c 69 76 65   ......app...live
     0020:  00 05 74 63 55 72 6c 02  00 1e 72 74 6d 70 3a 2f   ..tcUrl...rtmp:/
     0030:  2f 36 34 2e 34 39 2e 32  33 34 2e 32 35 30 3a 31   /<live ip="ip" address="address">:1
     0040:  39 33 35 2f 6c 69 76 65  00 04 66 70 61 64 01 00   935/live..fpad..
     0050:  00 0c 63 61 70 61 62 69  6c 69 74 69 65 73 00 40   ..capabilities.@
     0060:  2e 00 00 00 00 00 00 00  0b 61 75 64 69 6f 43 6f   .........audioCo
     0070:  64 65 63 73 00 40 a8 ee  00 00 00 00 00 00 0b 76   decs.@.........v
     0000:  c3                                                 .
     0000:  69 64 65 6f 43 6f 64 65  63 73 00 40 6f 80 00 00   ideoCodecs.@o...
     0010:  00 00 00 00 0d 76 69 64  65 6f 46 75 6e 63 74 69   .....videoFuncti
     0020:  6f 6e 00 3f f0 00 00 00  00 00 00 00 00 09         on.?..........
    Invoking connect
    RTMP_ReadPacket: fd=648
     0000:  02 00 00 00 00 00 04 05  00 00 00 00               ............
     0000:  00 4c 4b 40                                        .LK@
    HandleServerBW: server BW = 5000000
    RTMP_ReadPacket: fd=648
     0000:  02 00 00 00 00 00 05 06  00 00 00 00               ............
     0000:  00 4c 4b 40 02                                     .LK@.
    HandleClientBW: client BW = 5000000 2
    RTMP_ReadPacket: fd=648
     0000:  02 00 00 00 00 00 04 01  00 00 00 00               ............
     0000:  00 00 10 00                                        ....
    HandleChangeChunkSize, received: chunk size change to 4096
    RTMP_ReadPacket: fd=648
     0000:  03 00 00 00 00 00 be 14  00 00 00 00               ............
     0000:  02 00 07 5f 72 65 73 75  6c 74 00 3f f0 00 00 00   ..._result.?....
     0010:  00 00 00 03 00 06 66 6d  73 56 65 72 02 00 0d 46   ......fmsVer...F
     0020:  4d 53 2f 33 2c 30 2c 31  2c 31 32 33 00 0c 63 61   MS/3,0,1,123..ca
     0030:  70 61 62 69 6c 69 74 69  65 73 00 40 3f 00 00 00   pabilities.@?...
     0040:  00 00 00 00 00 09 03 00  05 6c 65 76 65 6c 02 00   .........level..
     0050:  06 73 74 61 74 75 73 00  04 63 6f 64 65 02 00 1d   .status..code...
     0060:  4e 65 74 43 6f 6e 6e 65  63 74 69 6f 6e 2e 43 6f   NetConnection.Co
     0070:  6e 6e 65 63 74 2e 53 75  63 63 65 73 73 00 0b 64   nnect.Success..d
     0080:  65 73 63 72 69 70 74 69  6f 6e 02 00 15 43 6f 6e   escription...Con
     0090:  6e 65 63 74 69 6f 6e 20  73 75 63 63 65 65 64 65   nection succeede
     00a0:  64 2e 00 0e 6f 62 6a 65  63 74 45 6e 63 6f 64 69   d...objectEncodi
     00b0:  6e 67 00 00 00 00 00 00  00 00 00 00 00 09         ng............
    RTMP_ClientPacket, received: invoke 190 bytes
    (object begin)
    Property:
    Property:
    Property:
    (object begin)
    Property: 3,0,1,123>
    Property:
    (object end)
    Property:
    (object begin)
    Property:
    Property:
    Property:
    Property:
    (object end)
    (object end)
    HandleInvoke, server invoking &lt;_result>
    HandleInvoke, received result for method call <connect>  0B f=0/0
    RTMP_SendPacket: fd=648, size=4
     0000:  02 00 00 00 00 00 04 05  00 00 00 00               ............
     0000:  00 4c 4b 40                                        .LK@
    sending ctrl. type: 0x0003
    RTMP_SendPacket: fd=648, size=10
     0000:  42 00 00 00 00 00 0a 04                            B.......
     0000:  00 03 00 00 00 00 00 00  01 2c                     .........,
    RTMP_SendPacket: fd=648, size=25
     0000:  43 00 00 00 00 00 19 14                            C.......
     0000:  02 00 0c 63 72 65 61 74  65 53 74 72 65 61 6d 00   ...createStream.
     0010:  40 00 00 00 00 00 00 00  05                        @........
    Invoking createStream
    RTMP_ReadPacket: fd=648
     0000:  03 00 00 00 00 00 1d 14  00 00 00 00               ............
     0000:  02 00 07 5f 72 65 73 75  6c 74 00 40 00 00 00 00   ..._result.@....
     0010:  00 00 00 05 00 3f f0 00  00 00 00 00 00            .....?.......
    RTMP_ClientPacket, received: invoke 29 bytes
    (object begin)
    Property:
    Property:
    Property: NULL
    Property:
    (object end)
    HandleInvoke, server invoking &lt;_result>
    HandleInvoke, received result for method call <createstream>
    SendPlay, seekTime=0, stopTime=0, sending play: (null)
    RTMP_SendPacket: fd=648, size=29
     0000:  08 00 00 00 00 00 1d 14  01 00 00 00               ............
     0000:  02 00 04 70 6c 61 79 00  40 08 00 00 00 00 00 00   ...play.@.......
     0010:  05 02 00 00 00 00 00 00  00 00 00 00 00            .............
    Invoking play 0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
    sending ctrl. type: 0x0003
    RTMP_SendPacket: fd=648, size=10
     0000:  c2                                                 .
     0000:  00 03 00 00 00 01 00 00  0b b8                     ..........
    RTMP_ReadPacket: fd=648
     0000:  05 00 00 00 00 00 60 14  01 00 00 00               ......`.....
     0000:  02 00 08 6f 6e 53 74 61  74 75 73 00 00 00 00 00   ...onStatus.....
     0010:  00 00 00 00 05 03 00 05  6c 65 76 65 6c 02 00 06   ........level...
     0020:  73 74 61 74 75 73 00 04  63 6f 64 65 02 00 14 4e   status..code...N
     0030:  65 74 53 74 72 65 61 6d  2e 50 6c 61 79 2e 53 74   etStream.Play.St
     0040:  61 72 74 00 0b 64 65 73  63 72 69 70 74 69 6f 6e   art..description
     0050:  02 00 0a 53 74 61 72 74  20 6c 69 76 65 00 00 09   ...Start live...
    RTMP_ClientPacket, received: invoke 96 bytes
    (object begin)
    Property:
    Property:
    Property: NULL
    Property:
    (object begin)
    Property:
    Property:
    Property:
    (object end)
    (object end)
    HandleInvoke, server invoking <onstatus>
    HandleInvoke, onStatus: NetStream.Play.Start
    RTMP_ReadPacket: fd=648
     0000:  05 00 00 00 00 00 18 12  01 00 00 00               ............
     0000:  02 00 11 7c 52 74 6d 70  53 61 6d 70 6c 65 41 63   ...|RtmpSampleAc
     0010:  63 65 73 73 01 01 01 01                            cess....
    RTMP_ClientPacket, received: notify 24 bytes
    (object begin)
    Property:
    Property:     nan    :  0.000 fd=   0
    aq=    0KB vq=    0KB sq=    0B f=0/0
    Property:
    (object end)
    RTMP_ReadPacket: fd=648
    RTMPSockBuf_Fill, recv returned -1. GetSockError(): 10060 (Unknown error)
    RTMP_ReadPacket, failed to read RTMP packet header
    [AVIOContext @ 04c81be0] Statistics: 0 bytes read, 0 seeks
    RTMP_SendPacket: fd=648, size=34
     0000:  43 00 00 00 00 00 22 14                            C.....".
     0000:  02 00 0c 64 65 6c 65 74  65 53 74 72 65 61 6d 00   ...deleteStream.
     0010:  40 10 00 00 00 00 00 00  05 00 3f f0 00 00 00 00   @.........?.....
     0020:  00 00                                              ..
    Invoking deleteStreamd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
    rtmp://<live ip="ip" address="address">:1935/live/: Invalid data found when processing input
    </live></onstatus></createstream></connect></live></live></live>

    By the way, this is my server config file ( /etc/nginx/nginx.conf )

    #user  nobody;
    worker_processes  4;

    #error_log  logs/error.log;
    #error_log  logs/error.log  notice;
    #error_log  logs/error.log  info;

    #pid        logs/nginx.pid;


    events {
       worker_connections  1024;
    }


    http {
       include       mime.types;
       default_type  application/octet-stream;

       #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
       #                  '$status $body_bytes_sent "$http_referer" '
       #                  '"$http_user_agent" "$http_x_forwarded_for"';

       #access_log  logs/access.log  main;

       sendfile        on;
       #tcp_nopush     on;

       #keepalive_timeout  0;
       keepalive_timeout  65;

       #gzip  on;

       server {
           listen       80;
           server_name  localhost;

           #charset koi8-r;

           #access_log  logs/host.access.log  main;

           location / {
               root   html;
               index  index.html index.htm;
           }

           #error_page  404              /404.html;

           # redirect server error pages to the static page /50x.html
           #
           error_page   500 502 503 504  /50x.html;
           location = /50x.html {
               root   html;
           }

           # proxy the PHP scripts to Apache listening on 127.0.0.1:80
           #
           #location ~ \.php$ {
           #    proxy_pass   http://127.0.0.1;
           #}

           # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
           #
           #location ~ \.php$ {
           #    root           html;
           #    fastcgi_pass   127.0.0.1:9000;
           #    fastcgi_index  index.php;
           #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
           #    include        fastcgi_params;
           #}

           # deny access to .htaccess files, if Apache's document root
           # concurs with nginx's one
           #
           #location ~ /\.ht {
           #    deny  all;
           #}
       }


       # another virtual host using mix of IP-, name-, and port-based configuration
       #
       #server {
       #    listen       8000;
       #    listen       somename:8080;
       #    server_name  somename  alias  another.alias;

       #    location / {
       #        root   html;
       #        index  index.html index.htm;
       #    }
       #}


       # HTTPS server
       #
       #server {
       #    listen       443 ssl;
       #    server_name  localhost;

       #    ssl_certificate      cert.pem;
       #    ssl_certificate_key  cert.key;

       #    ssl_session_cache    shared:SSL:1m;
       #    ssl_session_timeout  5m;

       #    ssl_ciphers  HIGH:!aNULL:!MD5;
       #    ssl_prefer_server_ciphers  on;

       #    location / {
       #        root   html;
       #        index  index.html index.htm;
       #    }
       #}

    }
    rtmp {
           server {
                   listen 1935;
                   chunk_size 4096;

                   application live {
                           live on;
                           record off;
                   }
           }
    }

    I can telnet into both port 80 and 1935, and made sure port 1935 is open as input and output in iptables...

    -A INPUT -m state --state NEW -m tcp -p tcp --dport 1935 -j ACCEPT
    -A OUTPUT -m state --state NEW -m tcp -p tcp --dport 1935 -j ACCEPT

    but nothing works.

    Can anyone help in this regards ?