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  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (8190)

  • More problems with FFmpeg not recognizing the directory I'm sending it to

    8 novembre 2019, par Requiem_7

    I am creating a program that takes an audio file, breaks it up into 30-second audio files, and sends those files to Google’s Speech Recognition API to transcribe the audio. I’m using FFmpeg to break up the original audio file and make the 30-second files. It was working for about 20 minutes and I didn’t change anything but now it’s giving me an error saying that no such file or directory exists.

    Here is the error it gives me :

    C:\Users\hmkur\Desktop\Python\Transcribing_Audio_GoogleAPI_Python>ffmpeg -i source/valve.flac -f segment -segment_time 30 -c copy parts/out%01d.flac
    
ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.1.1 (GCC) 20190807
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  libavutil      56. 31.100 / 56. 31.100
    
  libavcodec     58. 54.100 / 58. 54.100
    
  libavformat    58. 29.100 / 58. 29.100
    
  libavdevice    58.  8.100 / 58.  8.100
    
  libavfilter     7. 57.100 /  7. 57.100
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'source/valve.flac':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2mp41
    
    encoder         : Lavf58.29.100
    
  Duration: 00:11:42.54, start: 0.000000, bitrate: 129 kb/s
    
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      handler_name    : ISO Media file produced by Google Inc.
    
[segment @ 000001f8e84bd100] Opening 'parts/out0.flac' for writing
    
[segment @ 000001f8e84bd100] Failed to open segment 'parts/out0.flac'
    
Could not write header for output file #0 (incorrect codec parameters ?): No such file or directory
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
    Last message repeated 1 times

    Both the folder "source" with "valve.flac" exists as well as the folder "parts" and the files "out0.flac", etc. I was originally trying in the wav file format, switched to flac and it worked for about 20 minutes then stopped working.

  • Piping stream to ffmpeg via forked process stdin

    6 novembre 2019, par Yanick Salzmann

    I am piping data from my raspberry pi camera to ffmpeg to convert them into an mp4 stream. I do so not with libavformat/libavformat but I call ffmpeg directly like this :

            context->ffmpeg_process = utils::launch_subprocess(
    
                "ffmpeg",
    
                {"-f", "rawvideo", "-pix_fmt", "yuv420p", "-s", "1920x1080", "-r", "30", "-i", "-", "-c", "libx264", "-f", "mp4", "-movflags", "frag_keyframe+empty_moov", "-", "-loglevel", "trace"}
    
        );

    This is my wrapper around fork and exec like this :

            const auto child = fork();
    
        if(child == 0) {
    
            if (dup2(stdin_pipe[PIPE_READ], STDIN_FILENO) == -1) {
    
                exit(errno);
    
            }
    

    
            // same for stdout and sterr
    

    
            execvp(command.c_str(), proc_args);
    
            exit(errno);
    
        } else if(child > 0) {
    
            // same for stdout and stderr
    
            ret_process.stdin_pipe = stdin_pipe[PIPE_WRITE];
    
        }

    Now I have a callback that is called by the raspberry pi camera :

        void CameraHandler::handle_camera_frame(const std::vector &data, std::size_t size) {
    
        FILE* f = fopen("output.yuv4", "ab");
    
        fwrite(data.data(), 1, size, f);
    
        fclose(f);
    

    
        std::lock_guard l{_listener_lock};
    
        for (const auto &listener : _data_listeners) {
    
            std::size_t written = 0;
    
            while (written < size) {
    
                const auto num_written = write(listener->ffmpeg_process.stdin_pipe, data.data() + written, size - written);
    
                written += num_written;
    
                if(num_written < 0) {
    
                    log->error("Broken stdin pipe");
    
                    break;
    
                }
    
            }
    
        }
    
    }

    I deliberately append every frame to a file because I am running the exact same command as above (with cat output.yuv4 | ffmpeg ... > output4.mp4 to cross check).

    Now I can see that I am reading some data from my camera and pushing it to the ffmpeg process. But already after the first read ffmpeg complains, that the input data is invalid :

    [2019-11-06 20:08:04.010] [11872:11932] [carpi::data::CameraHandler] [info] Launched ffmpeg process. PID: 11933, error: 0
    
[2019-11-06 20:08:04.014] [11872:11932] [carpi::video::RawCameraStream] [info] Camera dimension: 1920/1080
    
ffmpeg version 4.1.4-1+rpt1~deb10u1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 8 (Raspbian 8.3.0-6+rpi1)
    
  configuration: --prefix=/usr --extra-version='1+rpt1~deb10u1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --arch=arm --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
Successfully parsed a group of options.
    
Parsing a group of options: input url -.
    
Applying option pix_fmt (set pixel format) with argument yuv420p.
    
Applying option s (set frame size (WxH or abbreviation)) with argument 1920x1080.
    
Applying option r (set frame rate (Hz value, fraction or abbreviation)) with argument 30.
    
Successfully parsed a group of options.
    
Opening an input file: -.
    
[NULL @ 0xcd02d0] Opening 'pipe:' for reading
    
[pipe @ 0xcd0b50] Setting default whitelist 'crypto'
    
[AVIOContext @ 0xcd8d50] Statistics: 1048576 bytes read, 0 seeks
    
pipe:: Invalid data found when processing input

    I am now confused. This is literally the same as I am fwriteing and then piping from the file. Is there something wrong with my write ?

  • How to make my video in landscape mode using ffmpeg

    6 novembre 2019, par Aarwil

    I have four video chats. Somehow I have managed to cut videos into pieces, stored in array then stacked and finally concat the video which is in the youtube link down below. I have used the size in the portrait view is 640*480. But I need to show them in the landscape. Suggest me any ideas.

    Landscape view :
    https://youtu.be/u8tmL2-CdK0
    Portrait view :
    https://youtu.be/lO-Q3I9X8OA

    These are my inputs

    Input #0, matroska,webm, from 'PA473fbf06ed1f952f95c88b9cf22ed0ba_pre.mkv':
     Metadata:
       encoder         : GStreamer matroskamux version 1.8.1.1
       creation_time   : 2019-11-05T06:08:19.000000Z
     Duration: 00:01:05.50, start: 63.041000, bitrate: 30 kb/s
       Stream #0:0(eng): Video: h264 (Baseline), yuvj420p(pc, progressive), 360x480, SAR 1:1 DAR 3:4, 15 tbr, 1k tbn, 2k tbc (default)
       Metadata:
         title           : Video
    Input #1, matroska,webm, from 'PA183db0ed986039de3197092103a411eb_pre.mkv':
     Metadata:
       encoder         : GStreamer matroskamux version 1.8.1.1
       creation_time   : 2019-11-05T06:07:20.000000Z
     Duration: 00:03:15.14, start: 4.062000, bitrate: 172 kb/s
       Stream #1:0(eng): Video: h264 (Baseline), yuvj420p(pc, progressive), 360x480, SAR 1:1 DAR 3:4, 15 fps, 15 tbr, 1k tbn, 2k tbc (default)
       Metadata:
         title           : Video
    Input #2, matroska,webm, from 'PA62a810038cbcc00be21fac43e98f5ee1_pre.mkv':
     Metadata:
       encoder         : GStreamer matroskamux version 1.8.1.1
       creation_time   : 2019-11-05T06:07:45.000000Z
     Duration: 00:02:21.71, start: 28.803000, bitrate: 92 kb/s
       Stream #2:0(eng): Video: h264 (Baseline), yuvj420p(pc, progressive), 360x480, SAR 1:1 DAR 3:4, 15 tbr, 1k tbn, 2k tbc (default)
       Metadata:
         title           : Video
    Input #3, matroska,webm, from 'PA8fa44ff1ba37ee510a045198bca6f04a_pre.mkv':
     Metadata:
       encoder         : GStreamer matroskamux version 1.8.1.1
       creation_time   : 2019-11-05T06:07:48.000000Z
     Duration: 00:01:50.69, start: 32.318000, bitrate: 28 kb/s
       Stream #3:0(eng): Video: h264 (Baseline), yuvj420p(pc, progressive), 360x480, SAR 1:1 DAR 3:4, 15 fps, 15 tbr, 1k tbn, 2k tbc (default)
       Metadata:
         title           : Video

    At first, I change all the video resolution to 640:480 because each video may have different resolution (probability). So I am setting a fixed resolution.

    ffmpeg -i PA8fa44ff1ba37ee510a045198bca6f04a_pre.mkv -vf scale=640:480 PA8fa44ff1ba37ee510a045198bca6f04a.mkv -hide_banner
    Input #0, matroska,webm, from PA8fa44ff1ba37ee510a045198bca6f04a_pre.mkv':
     Metadata:
       encoder         : GStreamer matroskamux version 1.8.1.1
       creation_time   : 2019-11-05T06:07:48.000000Z
     Duration: 00:01:50.69, start: 32.318000, bitrate: 28 kb/s
       Stream #0:0(eng): Video: h264 (Baseline), yuvj420p(pc, progressive), 360x480, SAR 1:1 DAR 3:4, 15 fps, 15 tbr, 1k tbn, 2k tbc (default)
       Metadata:
         title           : Video
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    [swscaler @ 0000021d72eb3f80] deprecated pixel format used, make sure you did set range correctly
    [libx264 @ 0000021d72b33b40] using SAR=9/16
    [libx264 @ 0000021d72b33b40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    [libx264 @ 0000021d72b33b40] profile High, level 2.2, 4:2:0, 8-bit
    [libx264 @ 0000021d72b33b40] 264 - core 158 r2984 3759fcb - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=250 keyint_min=15 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    Output #0, matroska, to 'PA8fa44ff1ba37ee510a045198bca6f04a.mkv':
     Metadata:
       encoder         : Lavf58.32.104
       Stream #0:0(eng): Video: h264 (libx264) (H264 / 0x34363248), yuvj420p(pc), 640x480 [SAR 9:16 DAR 3:4], q=-1--1, 15 fps, 1k tbn, 15 tbc (default)
       Metadata:
         title           : Video
         encoder         : Lavc58.56.101 libx264

    Two videos merging command

    ffmpeg
    -i ddb97d85-fc21-4fb4-8062-ca2084a48aeb.mkv
    -i a8665a5f-fb5e-44cb-a072-070fbe07a14f.mkv
    -filter_complex "[0:v][1:v]hstack" 1572934056.mkv

    Three videos merging command

    ffmpeg
    -i 16f90447-c8b6-4077-b3b6-4fb2c07e19b5.mkv
    -i ef501109-0ee9-4924-8de1-65eb796a4a78.mkv
    -i 0b284aa6-4175-472c-aaf6-837412f97f32.mkv
    -filter_complex "[1:v]scale=320:-1[left]; [2:v]scale=320:-1[right]; [left][right]hstack[bottom]; [0:v][bottom]vstack" 1572934058.mkv

    Concat Command

    ffmpeg
    -i 1572934031.mkv -i 1572934056.mkv -i 1572934058.mkv -i 1572934089.mkv -i 1572934155.mkv -i 1572934169.mkv -i 1572934198.mkv -filter_complex "[0]scale=640:480:force_original_aspect_ratio=decrease,pad=640:480:(ow-iw)/2:(oh-ih)/2,fps=fps=30,setsar=1[0v];[1]scale=640:480:force_original_aspect_ratio=decrease,pad=640:480:(ow-iw)/2:(oh-ih)/2,fps=fps=30,setsar=1[1v];[2]scale=640:480:force_original_aspect_ratio=decrease,pad=640:480:(ow-iw)/2:(oh-ih)/2,fps=fps=30,setsar=1[2v];[3]scale=640:480:force_original_aspect_ratio=decrease,pad=640:480:(ow-iw)/2:(oh-ih)/2,fps=fps=30,setsar=1[3v];[4]scale=640:480:force_original_aspect_ratio=decrease,pad=640:480:(ow-iw)/2:(oh-ih)/2,fps=fps=30,setsar=1[4v];[5]scale=640:480:force_original_aspect_ratio=decrease,pad=640:480:(ow-iw)/2:(oh-ih)/2,fps=fps=30,setsar=1[5v];[6]scale=640:480:force_original_aspect_ratio=decrease,pad=640:480:(ow-iw)/2:(oh-ih)/2,fps=fps=30,setsar=1[6v];[0v][1v][2v][3v][4v][5v][6v]concat=n=7:v=1:a=0[v]" -map "[v]" 4c21f002fa76b148c00cc6fbceaa57ee.mp4

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