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  • 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 (...)

  • 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) (...)

  • 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.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

Sur d’autres sites (4252)

  • ffmpeg : Unrecognized option 'alpha_quality'

    16 avril 2024, par László Monda

    I want to make transparent videos work in Safari, which doesn't support WebM for this purpose but only H265 with alpha transparency.

    


    According to this post, I used Shutter Encoder, but only some of its versions work for this purpose on Mac.

    


    Instead of using Shutter Encoder on Mac, I want to use ffmpeg on my Linux PC. Shutter Encoder uses the following command in the background :

    


    ffmpeg -threads 0 -hwaccel none -i input.mov -c:v hevc_videotoolbox -alpha_quality 1 -b:v 1000k -profile:v main -level 5.2 -map v:0 -an -pix_fmt yuva420p -sws_flags bicubic -tag:v hvc1 -metadata creation_time=2024-04-14T14:53:08.734684Z -y output.mp4

    


    which yields the following output on my PC :

    


    ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
  configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1 --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-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --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 --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  WARNING: library configuration mismatch
  avcodec     configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1 --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-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --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 --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libaribb24 --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc --enable-libsmbclient
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Unrecognized option 'alpha_quality'.
Error splitting the argument list: Option not found


    


    When googling for "Unrecognized option 'alpha_quality'.", there are no results, which I find very odd.

    


    What's going on, and how can I make ffmpeg work for this purpose without Shutter Encoder ?

    


  • ffmpeg Unrecognized option 'preset' [closed]

    16 mai 2024, par Lalaluye

    Hello I just recently upgraded ffmpeg from 4.3.1 to 7.0 and getting the following error :

    


    my command is
ffmpeg -y -f image2pipe -framerate 24 -i pipe: -c:v libx264 -preset veryfast -crf 29 -pix_fmt yuv420

    


    and getting the below error :

    


    16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   built with gcc 7 (GCC)
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
configuration: --prefix=/local/p4clients/pkgbuild-JklBW/workspace/src/FFmpeg/build/private/install
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   libavutil      59.  8.100 / 59.  8.100
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   libavcodec     61.  3.100 / 61.  3.100
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   libavformat    61.  1.100 / 61.  1.100
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   libavdevice    61.  1.100 / 61.  1.100
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   libavfilter    10.  1.100 / 10.  1.100
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   libswscale      8.  1.100 /  8.  1.100
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg   libswresample   5.  1.100 /  5.  1.100
16 May 2024 06:43:28,979 [DEBUG] testIntent  (pool-7-thread-3) 
ffmpeg Unrecognized option 'preset'.



    


    Haven't found a resolution so far. Any help appreciated

    


  • FFmpeg -ss parameter is the video duration, Output file is empty

    16 avril 2024, par noun nil

    The main function is to obtain the corresponding video frame based on the input seconds.Before processing, the duration of the video will be obtained to determine whether the input is within the duration range of the video. If so, the corresponding instruction will be executed.

    


    > ffprobe input.mp4
  ...
  Duration: 00:00:28.05, start: 0.000000, bitrate: 1136 kb/s


    


    > ffmpeg -ss 00:00:28 -i input.mp4 -frames:v 1 output.png
 ffmpeg version 7.0 Copyright (c) 2000-2024 the FFmpeg developers
  built with Apple clang version 15.0.0 (clang-1500.3.9.4)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.0 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopenvino --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
  libavutil      59.  8.100 / 59.  8.100
  libavcodec     61.  3.100 / 61.  3.100
  libavformat    61.  1.100 / 61.  1.100
  libavdevice    61.  1.100 / 61.  1.100
  libavfilter    10.  1.100 / 10.  1.100
  libswscale      8.  1.100 /  8.  1.100
  libswresample   5.  1.100 /  5.  1.100
  libpostproc    58.  1.100 / 58.  1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
    description     : Packed by Bilibili XCoder v2.0.2
  Duration: 00:00:28.05, start: 0.000000, bitrate: 1136 kb/s
  Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 720x1280 [SAR 1:1 DAR 9:16], 1005 kb/s, 25.27 fps, 25.25 tbr, 16k tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
      Metadata:
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> png (native))
Press [q] to stop, [?] for help
[swscaler @ 0x1187a0000] [swscaler @ 0x110e48000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110e58000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110e68000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110e78000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110e88000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110e98000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110ea8000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110eb8000] No accelerated colorspace conversion found from yuv420p to rgb24.
[swscaler @ 0x1187a0000] [swscaler @ 0x110ec8000] No accelerated colorspace conversion found from yuv420p to rgb24.
[vost#0:0/png @ 0x12ce06840] No filtered frames for output stream, trying to initialize anyway.
Output #0, image2, to 'output.png':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    description     : Packed by Bilibili XCoder v2.0.2
    encoder         : Lavf61.1.100
  Stream #0:0(und): Video: png, rgb24(progressive), 720x1280 [SAR 1:1 DAR 9:16], q=2-31, 200 kb/s, 25.25 fps, 16k tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
        encoder         : Lavc61.3.100 png
[out#0/image2 @ 0x600000e983c0] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/image2 @ 0x600000e983c0] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=N/A bitrate=N/A speed=N/A    



    


    -ss 00:00:28 within the video duration range, but still cannot obtain frames...

    


    -ss 00:00:27 Can obtain video frames

    


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