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  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (10804)

  • ffmpeg : Output to the same folder as source with recursive input ?

    22 octobre 2015, par t3hPeNgU1NoFd00m

    I have a lot of gifs I want converted to webms in many sub directories, and I have this script which will do it, but it will output to the directory where the script is located :

    for /r %%a in ("*.gif") do ffmpeg -i "%%a" -c:v libvpx -crf 12 -b:v 4000k "%%~na.webm"
    
pause

    I’ve tried a bunch of things, but I can’t figure out how to get the output to land in the same sub directory as the input file so I can maintain the folder structure.

    Edit : it’s a Windows batch file I’m using.

  • Issue in recording video

    16 novembre 2015, par human123

    I am trying to record video in 480*480 resolution like in vine using javacv. As a starting point I used the sample provided in https://github.com/bytedeco/javacv/blob/master/samples/RecordActivity.java Video is getting recorded (but not in the desired resolution) and saved.

    But the issue is that 480*480 resolution is not supported natively in android. So some pre processing needs to be done to get the video in desired resolution.

    So once I was able to record video using code sample provided by javacv, next challenge was on how to pre process the video. On research it was found that efficient cropping is possible when final image width required is same as recorded image width. Such a solution was provided in the SO question,Recording video on Android using JavaCV (Updated 2014 02 17). I changed onPreviewFrame method as suggested in that answer.

        @Override
    
    public void onPreviewFrame(byte[] data, Camera camera) {
    
        if (audioRecord == null || audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
    
            startTime = System.currentTimeMillis();
    
            return;
    
        }
    
        if (RECORD_LENGTH > 0) {
    
            int i = imagesIndex++ % images.length;
    
            yuvImage = images[i];
    
            timestamps[i] = 1000 * (System.currentTimeMillis() - startTime);
    
        }
    
        /* get video data */
    
        imageWidth = 640;
    
        imageHeight = 480    
    
        int finalImageHeight = 360;
    
        if (yuvImage != null && recording) {
    
            ByteBuffer bb = (ByteBuffer)yuvImage.image[0].position(0); // resets the buffer
    
            final int startY = imageWidth*(imageHeight-finalImageHeight)/2;
    
            final int lenY = imageWidth*finalImageHeight;
    
            bb.put(data, startY, lenY);
    
            final int startVU = imageWidth*imageHeight + imageWidth*(imageHeight-finalImageHeight)/4;
    
            final int lenVU = imageWidth* finalImageHeight/2;
    
            bb.put(data, startVU, lenVU);
    
            try {
    
                long t = 1000 * (System.currentTimeMillis() - startTime);
    
                if (t > recorder.getTimestamp()) {
    
                    recorder.setTimestamp(t);
    
                }
    
                recorder.record(yuvImage);
    
            } catch (FFmpegFrameRecorder.Exception e) {
    
                Log.e(LOG_TAG, "problem with recorder():", e);
    
            }
    
        }
    

    

    
    }
    
}

    Please also note that this solution was provided for an older version of javacv. The resulting video had a yellowish overlay covering 2/3rd part. Also there was empty section on left side as the video was not cropped correctly.

    So my question is what is the most appropriate solution for cropping videos using latest version of javacv ?

    Code after making change as suggested by Alex Cohn

        @Override
    
    public void onPreviewFrame(byte[] data, Camera camera) {
    
        if (audioRecord == null || audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
    
            startTime = System.currentTimeMillis();
    
            return;
    
        }
    
        if (RECORD_LENGTH > 0) {
    
            int i = imagesIndex++ % images.length;
    
            yuvImage = images[i];
    
            timestamps[i] = 1000 * (System.currentTimeMillis() - startTime);
    
        }
    
        /* get video data */
    
        imageWidth = 640;
    
        imageHeight = 480;       
    
        destWidth = 480;
    

    
        if (yuvImage != null && recording) {
    
            ByteBuffer bb = (ByteBuffer)yuvImage.image[0].position(0); // resets the buffer
    
            int start = 2*((imageWidth-destWidth)/4); // this must be even
    
            for (int row=0; row2; row++) {
    
                bb.put(data, start, destWidth);
    
                start += imageWidth;
    
            }
    
            try {
    
                long t = 1000 * (System.currentTimeMillis() - startTime);
    
                if (t > recorder.getTimestamp()) {
    
                    recorder.setTimestamp(t);
    
                }
    
                recorder.record(yuvImage);
    
            } catch (FFmpegFrameRecorder.Exception e) {
    
                Log.e(LOG_TAG, "problem with recorder():", e);
    
            }
    
        }
    

    

    
    }

    Screen shot from video generated with this code (destWidth 480) is

    video resolution 480*480

    Next I tried capturing a video with destWidth speciified as 639. The result is

    639*480

    When destWidth is 639 video is repeating contents twice. When it is 480, contents are repeated 5 times and the green overlay and distortion is more.

    Also When the destWidth = imageWidth, video is captured properly. ie, for 640*480 there is no repetition of video contents and no green overlay.

    Converting frame to IplImage

    When this question was asked first, I missed to mention that the record method in FFmpegFrameRecorder is now accepting object of type Frame whereas earlier it was IplImage object. So I tried to apply Alex Cohn’s solution by converting Frame to IplImage.

    //---------------------------------------
    
// initialize ffmpeg_recorder
    
//---------------------------------------
    
private void initRecorder() {
    

    
    Log.w(LOG_TAG,"init recorder");
    

    
    imageWidth = 640;
    
    imageHeight = 480; 
    

    
    if (RECORD_LENGTH > 0) {
    
        imagesIndex = 0;
    
        images = new Frame[RECORD_LENGTH * frameRate];
    
        timestamps = new long[images.length];
    
        for (int i = 0; i < images.length; i++) {
    
            images[i] = new Frame(imageWidth, imageHeight, Frame.DEPTH_UBYTE, 2);
    
            timestamps[i] = -1;
    
        }
    
    } else if (yuvImage == null) {
    
        yuvImage = new Frame(imageWidth, imageHeight, Frame.DEPTH_UBYTE, 2);
    
        Log.i(LOG_TAG, "create yuvImage");
    
        OpenCVFrameConverter.ToIplImage converter = new OpenCVFrameConverter.ToIplImage();
    
        yuvIplimage = converter.convert(yuvImage);
    

    
    }
    

    
    Log.i(LOG_TAG, "ffmpeg_url: " + ffmpeg_link);
    
    recorder = new FFmpegFrameRecorder(ffmpeg_link, imageWidth, imageHeight, 1);
    
    recorder.setFormat("flv");
    
    recorder.setSampleRate(sampleAudioRateInHz);
    
    // Set in the surface changed method
    
    recorder.setFrameRate(frameRate);
    

    
    Log.i(LOG_TAG, "recorder initialize success");
    

    
    audioRecordRunnable = new AudioRecordRunnable();
    
    audioThread = new Thread(audioRecordRunnable);
    
    runAudioThread = true;
    
}
    

    

    

    
@Override
    
    public void onPreviewFrame(byte[] data, Camera camera) {
    
        if (audioRecord == null || audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
    
            startTime = System.currentTimeMillis();
    
            return;
    
        }
    
        if (RECORD_LENGTH > 0) {
    
            int i = imagesIndex++ % images.length;
    
            yuvImage = images[i];
    
            timestamps[i] = 1000 * (System.currentTimeMillis() - startTime);
    
        }
    
        /* get video data */
    
        int destWidth = 640;
    

    
        if (yuvIplimage != null && recording) {
    
            ByteBuffer bb = yuvIplimage.getByteBuffer(); // resets the buffer
    
            int start = 2*((imageWidth-destWidth)/4); // this must be even
    
            for (int row=0; row2; row++) {
    
                bb.put(data, start, destWidth);
    
                start += imageWidth;
    
            }
    
            try {
    
                long t = 1000 * (System.currentTimeMillis() - startTime);
    
                if (t > recorder.getTimestamp()) {
    
                    recorder.setTimestamp(t);
    
                }
    
                recorder.record(yuvImage);
    
            } catch (FFmpegFrameRecorder.Exception e) {
    
                Log.e(LOG_TAG, "problem with recorder():", e);
    
            }
    
        }
    

    

    
    }

    But the videos generated with this method contained only green frames.

  • Convert video by ffmpeg not working in chrome

    18 novembre 2015, par Ducthien

    I used command :

      $ ffmpeg -y -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -an -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 1500k -maxrate 1500k -bufsize 1000k -vf "scale=-1:720" "E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4"

    to get only video with format h264 (without sound). Cmd result :

    ffmpeg version N-76224-ga7c5005 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55.  4.100 / 55.  4.100
    
  libavcodec     57.  9.100 / 57.  9.100
    
  libavformat    57. 10.101 / 57. 10.101
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 12.100 /  6. 12.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf52.94.0
    
  Duration: 00:02:29.95, start: 0.000000, bitrate: 1787 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1629 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 151 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
[libx264 @ 000000821f5fbe40] using SAR=1/1
    
[libx264 @ 000000821f5fbe40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 000000821f5fbe40] profile High, level 3.1
    
[libx264 @ 000000821f5fbe40] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=24 keyint_min=13 scenecut=0 intra_refresh=0 rc_lookahead=24 rc=cbr mbtree=1 bitrate=1500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1500 vbv_bufsize=1000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.10.101
    
    Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 1500 kb/s, 29.97 fps, 30k tbn, 29.97 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.9.100 libx264
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
frame= 4494 fps= 38 q=-1.0 Lsize=   25050kB time=00:02:29.88 bitrate=1369.1kbits/s
    
video:25003kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.188374%
    
[libx264 @ 000000821f5fbe40] frame I:188   Avg QP:17.73  size: 40170
    
[libx264 @ 000000821f5fbe40] frame P:2060  Avg QP:23.64  size:  7302
    
[libx264 @ 000000821f5fbe40] frame B:2246  Avg QP:24.03  size:  1339
    
[libx264 @ 000000821f5fbe40] consecutive B-frames: 29.6%  8.4%  8.9% 53.1%
    
[libx264 @ 000000821f5fbe40] mb I  I16..4: 27.8% 64.1%  8.1%
    
[libx264 @ 000000821f5fbe40] mb P  I16..4:  5.4% 12.4%  0.3%  P16..4: 26.4%  4.3%  2.0%  0.0%  0.0%    skip:49.3%
    
[libx264 @ 000000821f5fbe40] mb B  I16..4:  0.2%  0.4%  0.0%  B16..8: 17.5%  0.7%  0.1%  direct: 0.9%  skip:80.2%  L0:41.5% L1:55.9% BI: 2.7%
    
[libx264 @ 000000821f5fbe40] 8x8 transform intra:66.9% inter:89.7%
    
[libx264 @ 000000821f5fbe40] coded y,uvDC,uvAC intra: 39.1% 57.7% 20.9% inter: 4.7% 10.1% 0.3%
    
[libx264 @ 000000821f5fbe40] i16 v,h,dc,p: 43% 29%  8% 20%
    
[libx264 @ 000000821f5fbe40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 23% 21%  4%  5%  5%  5%  5%  5%
    
[libx264 @ 000000821f5fbe40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 26%  9%  4%  8%  7%  7%  5%  4%
    
[libx264 @ 000000821f5fbe40] i8c dc,h,v,p: 49% 24% 20%  7%
    
[libx264 @ 000000821f5fbe40] Weighted P-Frames: Y:9.1% UV:8.9%
    
[libx264 @ 000000821f5fbe40] ref P L0: 74.5% 11.1% 11.0%  3.3%  0.1%
    
[libx264 @ 000000821f5fbe40] ref B L0: 91.0%  7.9%  1.1%
    
[libx264 @ 000000821f5fbe40] ref B L1: 96.4%  3.6%
    
[libx264 @ 000000821f5fbe40] kb/s:1365.92

    then i get audio from mp4 file :

    ffmpeg -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -vn -acodec copy "E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4"

    cmd result :

    $ ffmpeg -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -vn -acodec copy "E:\SharingVideo\src\mai
    
n\webapp\resources\video\input\audio.mp4"
    
ffmpeg version N-76224-ga7c5005 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55.  4.100 / 55.  4.100
    
  libavcodec     57.  9.100 / 57.  9.100
    
  libavformat    57. 10.101 / 57. 10.101
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 12.100 /  6. 12.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf52.94.0
    
  Duration: 00:02:29.95, start: 0.000000, bitrate: 1787 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1629 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 151 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
[mp4 @ 0000000b967e30a0] Codec for stream 0 does not use global headers but container format requires global headers
    
Output #0, mp4, to 'E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.10.101
    
    Stream #0:0(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 151 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (copy)
    
Press [q] to stop, [?] for help
    
size=    2806kB time=00:02:29.86 bitrate= 153.4kbits/s
    
video:0kB audio:2780kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.933710%

    after that. I create .mpd file by MP4box :

    MP4Box -dash 10000 -profile onDemand -rap -out "E:\SharingVideo\src\main\webapp\resources\video\input\input_dash.mpd" "E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4"#video:id=video_2Mb "E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4"#audio:id=audio

    the video play fine in firefox and IE but in chrome it doesn’t working :

    VIDEOJS: ERROR: (CODE:3 MEDIA_ERR_DECODE) The video playback was aborted due to a corruption problem or because the video used features your browser did not support.
    
Video Element Error: MEDIA_ERR_DECODE
    
VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) The video could not be loaded, either because the server or network failed or because the format is not supported.
    
Video Element Error: MEDIA_ERR_SRC_NOT_SUPPORTED

    I don’t know why it doesn’t work in chrome, please help me.What did I wrong something to display video in chrome ?

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