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    13 avril 2011, par

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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
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  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
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  • Nginx RTMP "Server Error : No Such Stream"

    7 août 2024, par Tony Ruth

    I am trying to capture and stream video within my network 10.100.64.1/24 using libnginx-mod-rtmp. I followed a tutorial. I used the same URL for publishing and playing : rtmp ://10.100.64.4/lab/test But the player does not find the stream.

    


    My nginx settings :

    


    rtmp {

    server {

        listen 1935;
        chunk_size 4096;
        allow publish 127.0.0.1;
        allow publish 10.100.64.4/24;
        deny publish all;
        allow play 127.0.0.1;
        allow play 10.100.64.4/24;
        deny play all;

        application lab {

            live on;
            idle_streams off;
            record all;
            record_path /media/HLEV/GoPro/Raw;
            record_unique on;
        } 
    }
} 


    


    The server lives on 10.100.64.4, so I published a video using ffmpeg :

    


    ffmpeg -stream_loop -1 -re -i MyVideo.flv -c:v copy -c:a aac -ar 44100 -ac 1 -f flv -flvflags no_duration_filesize rtmp://10.100.64.4/lab/test


    


    The publishing looks good. Last line of the above command :

    


    frame=54030 fps= 60 q=-1.0 size=  119584kB time=00:15:01.00 bitrate=1087.3kbits/s speed=   1x 


    


    And I can see that the video is being saved locally from the record block of the nginx settings.

    


    Then I try to play the stream using ffplay :

    


    ffplay -i rtmp://10.100.64.4/lab/test
ffplay version 5.1.5-0+deb12u1 Copyright (c) 2003-2024 the FFmpeg developers
  built with gcc 12 (Debian 12.2.0-14)
  configuration: --prefix=/usr --extra-version=0+deb12u1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librist --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --disable-sndio --enable-libjxl --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo --enable-librav1e --enable-shared
  libavutil      57. 28.100 / 57. 28.100
  libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
[rtmp @ 0x7fe7940015c0] Server error: No such stream=    0B f=0/0   
rtmp://127.0.0.1/lab/test: Operation not permitted
    nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0 


    


    ffplay does not find the stream.

    


    I can observe both the publish and play commands by examine the access log of nginx :

    


    sudo tail -2 /var/log/nginx/access.log 
10.100.64.4 [07/Aug/2024:12:24:56 -0500] PUBLISH "lab" "test" "" - 45365243 529 "" "FMLE/3.0 (compatible; Lavf59.27" (5m 36s)
10.100.64.4 [07/Aug/2024:12:25:03 -0500] PLAY "lab" "test" "" - 368 412 "" "LNX 9,0,124,2" (0s)


    


    I have tried using different video streams (directly from a webcam instead of from ffmpeg). I have also tried using different players (VLC instead of ffplay).

    


    How do I connect to the stream ?
Do you need different URLs for publishing versus playing ? The way I understood it, publishing is on port 1395 and playing is on port 80, so there is no conflict with using the same URL.
Is there a way to list the currently active streams on my server ?

    


  • How can i list all the audio devices on my pc using ffmpeg ? [closed]

    12 octobre 2024, par Daniel Lip

    I'm using ffmpeg version : 2024-07-10

    


    I tried this cmd command after running the cmd as admin.

    


    ffmpeg -list_devices true -f dshow -i dummy


    


    but the result is :

    


    D:\>ffmpeg -list_devices true -f dshow -i dummy
ffmpeg version 2024-07-10-git-1a86a7a48d-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
  built with gcc 13.2.0 (Rev5, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      59. 28.100 / 59. 28.100
  libavcodec     61. 10.100 / 61. 10.100
  libavformat    61.  5.101 / 61.  5.101
  libavdevice    61.  2.100 / 61.  2.100
  libavfilter    10.  2.102 / 10.  2.102
  libswscale      8.  2.100 /  8.  2.100
  libswresample   5.  2.100 /  5.  2.100
  libpostproc    58.  2.100 / 58.  2.100
[dshow @ 000001c1e700f200] Could not enumerate video devices (or none found).
[dshow @ 000001c1e700f200] Could not enumerate audio only devices (or none found).
[in#0 @ 000001c1e700ee00] Error opening input: Immediate exit requested
Error opening input file dummy.


    


  • ffmpeg minimal linux build with only one filter [closed]

    31 juillet 2024, par at8993

    I am aiming to compile a minimal build of ffmpeg for Ubuntu 22.04. The application requires only the concat filter for .mp4s using H.264 video encoder.

    


    I have followed this guide and used the following commands to include libx264 only :

    


    sudo apt-get update -qq && sudo apt-get -y install \
  autoconf \
  automake \
  build-essential \
  cmake \
  git-core \
  libass-dev \
  libfreetype6-dev \
  libgnutls28-dev \
  libmp3lame-dev \
  libsdl2-dev \
  libtool \
  libva-dev \
  libvdpau-dev \
  libvorbis-dev \
  libxcb1-dev \
  libxcb-shm0-dev \
  libxcb-xfixes0-dev \
  meson \
  ninja-build \
  pkg-config \
  texinfo \
  wget \
  yasm \
  zlib1g-dev

mkdir -p ~/ffmpeg_sources ~/bin

sudo apt-get install libx264-dev


    


    and for the configure command I have used the following options with a view to only enable what's necessary for concat.

    


    cd ~/ffmpeg_sources && \
wget -O ffmpeg-snapshot.tar.bz2 https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2 && \
tar xjvf ffmpeg-snapshot.tar.bz2 && \
cd ffmpeg && \

PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
  --prefix="$HOME/ffmpeg_build" \
  --pkg-config-flags="--static" \
  --extra-cflags="-I$HOME/ffmpeg_build/include" \
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
  --extra-libs="-lpthread -lm" \
  --ld="g++" \
  --bindir="$HOME/bin" \
  --disable-everything \
  --enable-filter=concat \
  --enable-avformat \
  --enable-avdevice \
  --enable-avcodec \
  --enable-decoder=h264 
  --enable-libx264 
  --enable-muxer=mp4 
  --enable-gpl

PATH="$HOME/bin:$PATH" make && \
make install && \
hash -r


    


    However running

    


    ffmpeg -f concat -i files_to_merge.txt -c copy output.mp4


    


    returns error

    


    ffmpeg -f concat -i files_to_merge.txt -c copy output.mp4
ffmpeg version N-116445-gb1d410716b Copyright (c) 2000-2024 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
  configuration: --prefix=/home/user/ffmpeg_build 
--extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib 
--extra-libs='-lpthread -lm' 
--ld=g++ --bindir=/home/user/bin --disable-everything 
--enable-filter=concat --enable-avformat 
--enable-avdevice --enable-avcodec --enable-decoder=h264
 --enable-libx264 --enable-muxer=mp4 
--enable-gpl
  libavutil      59. 30.100 / 59. 30.100
  libavcodec     61. 10.100 / 61. 10.100
  libavformat    61.  5.101 / 61.  5.101
  libavdevice    61.  2.100 / 61.  2.100
  libavfilter    10.  2.102 / 10.  2.102
  libswscale      8.  2.100 /  8.  2.100
  libswresample   5.  2.100 /  5.  2.100
  libpostproc    58.  2.100 / 58.  2.100
[in#0 @ 0x555605fab640] Unknown input format: 'concat'


    


    I assume this is due to the omission of an enable option in the configure command.

    


    Thanks !

    


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