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Autres articles (112)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • Script d’installation automatique de MediaSPIP

    25 avril 2011, par

    Afin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
    Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
    La documentation de l’utilisation du script d’installation (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (14851)

  • libav ffmpeg - streaming from both a mkv and input stream

    20 janvier 2020, par kealist

    I am trying to use ffmpeg libraries in C# with AutoGen bindings. The overall issue is that I am taking a collection of sources, some streams, and some .mkv containing recordings of a stream. As for now, they are all h264 and only video. For input streams, I am able to adjust the packets and broad cast them and that works fine, but any time I try to call av_interleaved_write_frame with packets from the MKV file, I get the error Error occurred: Invalid data found when processing input.

    Here is the main loop, where the error happens for mkv files. Is there an extra step ?

    /* read all packets */
    while (true)
    {
       if ((ret = ffmpeg.av_read_frame(ifmt_ctx, &packet)) < 0)
       {
           Console.WriteLine("Unable to read packet");
           break;
       }
       stream_index = (uint)packet.stream_index;
       type = ifmt_ctx->streams[packet.stream_index]->codecpar->codec_type;
       Console.WriteLine($"Demuxer gave frame of stream_index %{stream_index}");


       /* remux this frame without reencoding */
       ffmpeg.av_packet_rescale_ts(&packet,
           ifmt_ctx->streams[stream_index]->time_base,
           ofmt_ctx->streams[stream_index]->time_base);

       if (packet.stream_index < 0)
       {
           Console.WriteLine("Packet stream error");
       }



       ret = ffmpeg.av_write_frame(ofmt_ctx, &packet);
       if (ret < 0)
       {
           goto end;
       }
       else
       {
           ffmpeg.av_packet_unref(&packet);
       }
    }

    Anything need to be different for MKV files ?

    I get some contradictory error output where it claims it is annex b but also isn’t :

    [AVBSFContext @ 00000220eb657080] The input looks like it is Annex B already
    Automatically inserted bitstream filter 'h264_mp4toannexb'; args=''
    [mpegts @ 00000220ebace300] H.264 bitstream malformed, no startcode found, use the video bitstream filter 'h264_mp4toannexb' to fix it ('-bsf:v h264_mp4toannexb' option with ffmpeg)

    Verbose output from ffplay from an MKV file :

    ffplay version git-2020-01-13-7225479 Copyright (c) 2003-2020 the FFmpeg developers
     built with gcc 9.2.1 (GCC) 20200111
     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-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
     libavutil      56. 38.100 / 56. 38.100
     libavcodec     58. 65.103 / 58. 65.103
     libavformat    58. 35.102 / 58. 35.102
     libavdevice    58.  9.103 / 58.  9.103
     libavfilter     7. 71.100 /  7. 71.100
     libswscale      5.  6.100 /  5.  6.100
     libswresample   3.  6.100 /  3.  6.100
     libpostproc    55.  6.100 / 55.  6.100
    Initialized direct3d renderer.
    [h264 @ 00000165ed18d140] Reinit context to 640x480, pix_fmt: yuv444p
    Input #0, matroska,webm, from '.\webcam_14_Test1.mkv':   0B f=0/0
     Metadata:
       ENCODER         : Lavf58.12.100
     Duration: 00:00:39.30, start: 0.000000, bitrate: 1943 kb/s
       Stream #0:0: Video: h264 (High 4:4:4 Predictive), 1 reference frame, yuv444p(progressive, left), 640x480 [SAR 1:1 DAR 4:3], 1k fps, 30 tbr, 1k tbn, 60 tbc (default)
       Metadata:
         DURATION        : 00:00:39.299000000
    [h264 @ 00000165f424e200] Reinit context to 640x480, pix_fmt: yuv444p
    [ffplay_buffer @ 00000165f52ea840] w:640 h:480 pixfmt:yuv444p tb:1/1000 fr:30/1 sar:1/1
    [auto_scaler_0 @ 00000165ed1d2c80] w:iw h:ih flags:'bicubic' interl:0
    [ffplay_buffersink @ 00000165f424ef00] auto-inserting filter 'auto_scaler_0' between the filter 'ffplay_buffer' and the filter 'ffplay_buffersink'
    [auto_scaler_0 @ 00000165ed1d2c80] w:640 h:480 fmt:yuv444p sar:1/1 -> w:640 h:480 fmt:yuv420p sar:1/1 flags:0x4
    Created 640x480 texture with SDL_PIXELFORMAT_IYUV.
    [AVIOContext @ 00000165ed179a40] Statistics: 9547965 bytes read, 0 seeks
  • How to make icecast relay the metadata of mp3 stream from ffmpeg ?

    8 janvier 2021, par Anonymous Mouse

    I'm trying to relay a internet radio stream with the command :

    


    ffmpeg -re -i 'http://internetradiourl'-vn -acodec copy -f tee -map 0:a "[f=mp3]icecast://source:pass@icecast:8000/a|[f=mp3]icecast://source:pass@icecast:8000/b"


    


    the output stream has all the metadata :

    


    Output #0, tee, to '[f=mp3]icecast://source:pass@icecast:8000/a|[f=mp3]icecast://source:pass@icecast:8000/b':
  Metadata:
    audiocodec      : MP3
    audiodevice     : IN  1+2 (Digigram LoLa280)
    audiodeviceid   : e08a462b-2944-4abf-894a-5d5e8649452d
    type            : event
    encoderMachineName: ERADIO
    hasAudio        : true
    hasCuePoints    : true
    hasKeyframes    : true
    hasVideo        : false
    source          : MediaProxy 4.4.13.6
    name            : ad
    ad_type         : endbreak
    cue_id          : b6c7ff39-2103-4442-bdc8-35f8ba2bb97d
    cue_time_duration: 44.365
    cue_time_start  : 1610035039552
    cue_title       : PSA - Danny - Parking (Jun 2020)
    encoder         : Lavf58.45.100
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 98304 kb/s
Stream mapping:
  Stream #0:1 -> #0:0 (copy)


    


    but if a client connects to the icecast server, the metadata is lost :
ffprobe https://icecasturl/a

    


    Input #0, mp3, from 'https://icecasturl/a':
  Metadata:
    icy-pub         : 0
    icy-metadata    : 1
    StreamTitle     :
  Duration: N/A, start: 0.000000, bitrate: 96 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 96 kb/s


    


    How can I configure icecast so that it forwards all the metadata of the source stream ?

    


  • ERROR : opus not found using pkg-config in msys64 on Windows

    10 août 2022, par prostargamer

    I'm trying to build ffmpeg.

    


    I downloaded msys2 x64 from the official website. This is the latest version.
    
Executed "pacman-Syu", rebooted msys and executed "pacman-Su".

    


    In your file build_ffmpeg_win.sh ffmpeg installs the following packages using pacman :

    


    pacman --noconfirm -Sy
pacman --noconfirm -S msys/make
pacman --noconfirm -S mingw64/mingw-w64-x86_64-opus
pacman --noconfirm -S pkg-config
pacman --noconfirm -S diffutils
pacman --noconfirm -S mingw-w64-x86_64-pkg-config


    


    Then I run "pacman -Qet" in order to get the list of packages :

    


    $ pacman -Qet
base 2020.12-1
diffutils 3.8-1
make 4.3-1
mingw-w64-x86_64-opus 1.3.1-4
pkg-config 0.29.2-4


    


    The opus package is installed.

    


    However, when I try to run "build_ffmpeg_win.sh", then I get the following error at the stage ./configure : "ERROR : opus not found using pkg-config"

    


    The following folders and files are located in the "msys64\mingw64\lib" folder :

    


    pkgconfig (folder)
libopus.a
libopus.dll.a


    


    There is an opus.pc file in the msys64\mingw64\lib\pkgconfig folder, the contents of which refer to /mingw64/lib and /mingw64/include.
pkg-config knows about opus, but for some reason this error occurs during ./configure.

    


    How can I solve this problem ?