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  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

  • Déploiements possibles

    31 janvier 2010, par

    Deux types de déploiements sont envisageable dépendant de deux aspects : La méthode d’installation envisagée (en standalone ou en ferme) ; Le nombre d’encodages journaliers et la fréquentation envisagés ;
    L’encodage de vidéos est un processus lourd consommant énormément de ressources système (CPU et RAM), il est nécessaire de prendre tout cela en considération. Ce système n’est donc possible que sur un ou plusieurs serveurs dédiés.
    Version mono serveur
    La version mono serveur consiste à n’utiliser qu’une (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

Sur d’autres sites (4168)

  • FFMPEG- Convert video to images

    17 octobre 2016, par hack

    how can i convert a video to images using ffmpeg ? Example am having a video with total duration 60 seconds. I want images between different set of duration like between 2-6 seconds, then between 15-24 seconds and so on. Is that possible using ffmpeg ?

  • FFmpeg Android Video cropping speed and perfomance [duplicate]

    5 octobre 2016, par kishore jethava

    This question already has an answer here :

    FFmpeg 15 seconds video takes 15 seconds to crop.
    How can we reduce this cropping time with command or some other tricks ?

    I have refereed this question but didn’t helped.

    Here is code

    final FFmpeg ffmpeg = FFmpeg.getInstance(getActivity());
    
        try {
    
            ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
    

    
                @Override
    
                public void onStart() {}
    
                @Override
    
                public void onFailure() {}
    
                @Override
    
                public void onSuccess() {
    
                    Log.i(TAG, "FFMPEG Success ");
    
                    try {
    

    
                        /*Logic for cropping the original video to a square video depending of the                                           orientation of the original video*/
    

    
                        //Command for cropping square video
    
                        String[] cmd = {"-i", "path/source.mp4", "-vf", "scale=720:ih*720/iw, crop="720:720:0:0, "-preset","ultrafast","-strict","experimental","-vcodec","libx264","-preset","ultrafast","path/destination.mp4"};
    
                        // Execute cropping of video
    
                        ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
    

    
                            @Override
    
                            public void onStart() {
    

    
                            }
    

    
                            @Override
    
                            public void onProgress(String message) {
    
                                Log.i("Square", "progress : " +message);
    
                            }
    

    
                            @Override
    
                            public void onFailure(String message) {
    
                                Log.i("Square", "total fail : " + message);
    
                            }
    
                            @Override
    
                            public void onSuccess(String message) {
    
                                Log.i("Square", "Cropped video created.");
    

    
                            }
    
                            @Override
    
                            public void onFinish() {
    
                            }
    
                        });
    
                    } catch (FFmpegCommandAlreadyRunningException e) {
    
                        // Handle if FFmpeg is already running
    
                    }
    
                }
    
            });
    
        } catch (FFmpegNotSupportedException e) {
    
            // Handle if FFmpeg is not supported by device
    
        }

    Logcat

    D/FFmpeg: Running publishing updates method
    
I/Square: progress : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
    
I/Square: progress :   built with gcc 4.8 (GCC)
    
I/Square: progress :   configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
I/Square: progress :   libavutil      55. 17.103 / 55. 17.103
    
I/Square: progress :   libavcodec     57. 24.102 / 57. 24.102
    
I/Square: progress :   libavformat    57. 25.100 / 57. 25.100
    
I/Square: progress :   libavdevice    57.  0.101 / 57.  0.101
    
I/Square: progress :   libavfilter     6. 31.100 /  6. 31.100
    
I/Square: progress :   libswscale      4.  0.100 /  4.  0.100
    
I/Square: progress :   libswresample   2.  0.101 /  2.  0.101
    
I/Square: progress :   libpostproc    54.  0.100 / 54.  0.100
    
I/Square: progress : Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Content/source.mp4':
    
I/Square: progress :   Metadata:
    
I/Square: progress :     major_brand     : mp42
    
I/Square: progress :     minor_version   : 0
    
I/Square: progress :     compatible_brands: isommp42
    
I/Square: progress :     creation_time   : 2016-10-05 05:19:12
    
I/Square: progress :     com.android.version: 6.0.1
    
I/Square: progress :   Duration: 00:00:15.91, start: 0.000000, bitrate: 6174 kb/s
    
I/Square: progress :     Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 326 kb/s, 1.59 fps, 30 tbr, 90k tbn, 15 tbc (default)
    
I/Square: progress :     Metadata:
    
I/Square: progress :       rotate          : 90
    
I/Square: progress :       creation_time   : 2016-10-05 05:19:12
    
I/Square: progress :       handler_name    : VideoHandle
    
I/Square: progress :     Side data:
    
I/Square: progress :       displaymatrix: rotation of -90.00 degrees
    
I/Square: progress :     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, mono, fltp, 12 kb/s (default)
    
I/Square: progress :     Metadata:
    
I/Square: progress :       creation_time   : 2016-10-05 05:19:12
    
I/Square: progress :       handler_name    : SoundHandle
    
I/Square: progress : [libx264 @ 0xf7544400] using SAR=1/1
    
I/Square: progress : [libx264 @ 0xf7544400] using cpu capabilities: none!
    
I/Square: progress : [libx264 @ 0xf7544400] profile Constrained Baseline, level 3.1
    
I/Square: progress : [libx264 @ 0xf7544400] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
    
I/Square: progress : [aac @ 0xf7544c00] Too many bits 8832.000000 > 6144 per frame requested, clamping to max
    
I/Square: progress : Output #0, mp4, to '/storage/emulated/0/Content/destination.mp4':
    
I/Square: progress :   Metadata:
    
I/Square: progress :     major_brand     : mp42
    
I/Square: progress :     minor_version   : 0
    
I/Square: progress :     compatible_brands: isommp42
    
I/Square: progress :     com.android.version: 6.0.1
    
I/Square: progress :     encoder         : Lavf57.25.100
    
I/Square: progress :     Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 638x638 [SAR 1:1 DAR 1:1], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    
I/Square: progress :     Metadata:
    
I/Square: progress :       handler_name    : VideoHandle
    
I/Square: progress :       creation_time   : 2016-10-05 05:19:12
    
I/Square: progress :       encoder         : Lavc57.24.102 libx264
    
I/Square: progress :     Side data:
    
I/Square: progress :       unknown side data type 10 (24 bytes)
    
I/Square: progress :     Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 8000 Hz, mono, fltp, 48 kb/s (default)
    
I/Square: progress :     Metadata:
    
I/Square: progress :       creation_time   : 2016-10-05 05:19:12
    
I/Square: progress :       handler_name    : SoundHandle
    
I/Square: progress :       encoder         : Lavc57.24.102 aac
    
I/Square: progress : Stream mapping:
    
I/Square: progress :   Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
    
I/Square: progress :   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
I/Square: progress : Press [q] to stop, [?] for help
    
I/Square: progress : frame=    0 fps=0.0 q=0.0 size=       0kB time=00:00:05.24 bitrate=   0.1kbits/s speed=10.2x    
    
I/Square: progress : frame=    0 fps=0.0 q=0.0 size=       0kB time=00:00:10.24 bitrate=   0.1kbits/s speed=  10x    
    
I/Square: progress : frame=    0 fps=0.0 q=0.0 size=      19kB time=00:00:14.84 bitrate=  10.5kbits/s speed=9.73x    
    
I/Square: progress : frame= 8519 fps=205 q=23.0 size=    3734kB time=00:04:43.53 bitrate= 107.9kbits/s dup=8516 drop=0 speed=6.84x    
    
I/Square: progress : frame= 8537 fps=203 q=25.0 size=    3734kB time=00:04:44.13 bitrate= 107.7kbits/s dup=8516 drop=0 speed=6.77x    
    
I/Square: progress : frame= 8556 fps=201 q=25.0 size=    3735kB time=00:04:44.76 bitrate= 107.4kbits/s dup=8516 drop=0 speed= 6.7x    
    
I/Square: progress : frame= 8575 fps=199 q=25.0 size=    3843kB time=00:04:45.40 bitrate= 110.3kbits/s dup=8516 drop=0 speed=6.64x    
    
I/Square: progress : frame= 8594 fps=198 q=25.0 size=    3844kB time=00:04:46.03 bitrate= 110.1kbits/s dup=8516 drop=0 speed=6.58x    
    
I/Square: progress : frame= 8614 fps=196 q=25.0 size=    3844kB time=00:04:46.70 bitrate= 109.8kbits/s dup=8516 drop=0 speed=6.52x    
    
I/Square: progress : frame= 8633 fps=194 q=25.0 size=    3844kB time=00:04:47.33 bitrate= 109.6kbits/s dup=8516 drop=0 speed=6.45x    
    
I/Square: progress : frame= 8652 fps=192 q=25.0 size=    3844kB time=00:04:47.96 bitrate= 109.4kbits/s dup=8516 drop=0 speed= 6.4x    
    
I/Square: progress : frame= 8672 fps=190 q=26.0 size=    3844kB time=00:04:48.63 bitrate= 109.1kbits/s dup=8516 drop=0 speed=6.34x    
    
I/Square: progress : frame= 8691 fps=189 q=25.0 size=    3845kB time=00:04:49.26 bitrate= 108.9kbits/s dup=8516 drop=0 speed=6.28x    
    
I/Square: progress : frame= 8711 fps=187 q=26.0 size=    3845kB time=00:04:49.93 bitrate= 108.6kbits/s dup=8516 drop=0 speed=6.23x    
    
I/Square: progress : frame= 8731 fps=185 q=26.0 size=    3845kB time=00:04:50.60 bitrate= 108.4kbits/s dup=8516 drop=0 speed=6.17x    
    
I/Square: progress : frame= 8750 fps=184 q=26.0 size=    3845kB time=00:04:51.23 bitrate= 108.2kbits/s dup=8516 drop=0 speed=6.12x    
    
I/Square: progress : frame= 8770 fps=182 q=26.0 size=    3846kB time=00:04:51.90 bitrate= 107.9kbits/s dup=8516 drop=0 speed=6.07x    
    
I/Square: progress : frame= 8791 fps=181 q=26.0 size=    3846kB time=00:04:52.60 bitrate= 107.7kbits/s dup=8516 drop=0 speed=6.02x    
    
I/Square: progress : frame= 8811 fps=179 q=26.0 size=    3846kB time=00:04:53.26 bitrate= 107.4kbits/s dup=8516 drop=0 speed=5.97x    
    
I/Square: progress : frame= 8831 fps=178 q=26.0 size=    3971kB time=00:04:53.93 bitrate= 110.7kbits/s dup=8516 drop=0 speed=5.92x    
    
I/Square: progress : frame= 8851 fps=177 q=26.0 size=    4214kB time=00:04:54.60 bitrate= 117.2kbits/s dup=8516 drop=0 speed=5.88x    
    
I/Square: progress : frame= 8871 fps=175 q=25.0 size=    4451kB time=00:04:55.26 bitrate= 123.5kbits/s dup=8516 drop=0 speed=5.83x    
    
I/Square: progress : frame= 8891 fps=174 q=26.0 size=    4705kB time=00:04:55.93 bitrate= 130.2kbits/s dup=8516 drop=0 speed=5.78x    
    
I/Square: progress : frame= 8911 fps=172 q=26.0 size=    4963kB time=00:04:56.60 bitrate= 137.1kbits/s dup=8516 drop=0 speed=5.74x    
    
I/Square: progress : frame= 8932 fps=171 q=26.0 size=    5226kB time=00:04:57.30 bitrate= 144.0kbits/s dup=8516 drop=0 speed= 5.7x    
    
I/Square: progress : frame= 8952 fps=170 q=26.0 size=    5475kB time=00:04:57.96 bitrate= 150.5kbits/s dup=8516 drop=0 speed=5.65x    
    
I/Square: progress : frame= 8972 fps=169 q=26.0 size=    5730kB time=00:04:58.63 bitrate= 157.2kbits/s dup=8516 drop=0 speed=5.61x    
    
I/Square: progress : frame= 8992 fps=167 q=26.0 size=    5970kB time=00:04:59.30 bitrate= 163.4kbits/s dup=8516 drop=0 speed=5.57x    
    
I/Square: progress : frame= 8993 fps=167 q=-1.0 Lsize=    9456kB time=00:04:59.76 bitrate= 258.4kbits/s dup=8516 drop=0 speed=5.56x    
    
I/Square: progress : video:9350kB audio:68kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.404826%
    
I/Square: progress : [libx264 @ 0xf7544400] frame I:36    Avg QP:10.64  size:107101
    
I/Square: progress : [libx264 @ 0xf7544400] frame P:8957  Avg QP:13.80  size:   638
    
I/Square: progress : [libx264 @ 0xf7544400] mb I  I16..4: 100.0%  0.0%  0.0%
    
I/Square: progress : [libx264 @ 0xf7544400] mb P  I16..4:  0.4%  0.0%  0.0%  P16..4:  4.3%  0.0%  0.0%  0.0%  0.0%    skip:95.3%
    
I/Square: progress : [libx264 @ 0xf7544400] coded y,uvDC,uvAC intra: 78.5% 24.5% 12.4% inter: 2.6% 0.2% 0.0%
    
I/Square: progress : [libx264 @ 0xf7544400] i16 v,h,dc,p: 28% 12% 42% 18%
    
I/Square: progress : [libx264 @ 0xf7544400] i8c dc,h,v,p: 59% 15% 22%  4%
    
I/Square: progress : [libx264 @ 0xf7544400] kb/s:255.50
    
I/Square: progress : [aac @ 0xf7544c00] Qavg: 65536.000
    
I/Square: Cropped video created.
    
I/Square: finished

  • VLC snytax to transcode & stream to stdout ?

    4 octobre 2016, par Will Tower

    Goal : I am trying to use VLC as a local server to expand the video capabilities of an app created with Adobe AIR, Flex and Actionscript. I am using VLC to stream to stdoutand reading that output from within my app.

    VLC Streaming capabilities
    VLC Flash Video

    Status : I am able to launch VLC as a background process and control it through its remote control interface (more detail). I can load, transcode and stream a local video file. The example app below is a barebones testbed demonstrating this.

    Issue : I am getting data in to my app but it is not rendering as video. I don’t know if it is a problem with my VLC commands or with writing to/reading from stdout. This technique of reading from stdout in AIR works (with ffmpeg for example).

    One of the various transcoding commands I have tried :

    -I rc  // remote control interface  
    
-vvv   // verbose debuging  
    
--sout  // transcode, stream to stdout 
    
"#transcode{vcodec=FLV1}:std{access=file,mux=ffmpeg{mux=flv},dst=-}"

    This results in data coming into to my app but for some reason it is not rendering as video when using appendBytes with the NetStream instance.

    If instead I write the data to an .flv file, a valid file is created – so the broken part seems to be writing it to stdout. One thing I have noticed : I am not getting metadata through the stdout`method. If I play the file created with the command below, I do see metadata.

    Hoping someone sees where I am going wrong here.

    // writing to a file
    
var output:File = File.desktopDirectory.resolvePath("stream.flv");
    
var outputPath:String = output.nativePath;
    
"#transcode{vcodec=FLV1}:std{access=file,mux=ffmpeg{mux=flv},dst=" + outputPath + "}");

    Note : In order to get this to work in AIR, you need to define the app profile as "extendedDesktop"

      <?xml version="1.0" encoding="utf-8"?>
    
  
    

    
    
    
        
    
    
    

    
    

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