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  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (6851)

  • libavfilter/libmpcodecs : sync existing filters with mplayer HEAD (ebcacb8b3ca91ef90ac...

    3 mai 2014, par mplayer developers
    libavfilter/libmpcodecs : sync existing filters with mplayer HEAD (ebcacb8b3ca91ef90acb93785b62fd8c5e5dae41)

    Authors from svn :
    
cehoyos (2) :
    
      Support playback of JPEG 2000 digital cinema files.
    
      Add name for image format IMGFMT_440P.
    

    ib (1) :
    
      Get rid of VOCTRL_GUI_NOWINDOW.
    

    Matt Oliver (4) :
    
      Fix libmpcodecs inline asm on ICL.
    
      Use DECLARE_ALIGNED helper macros.
    
      Remove some superfluous commas from inline asm for better compatibility.
    
      Use numeric labels in inline asm for consistency and better     compatibility.
    

    reimar (10) :
    
      Fix bpp calculation for XYZ format.
    
      Avoid duplicating the mouse autohide code.
    
      Add NV12/NV21 support to some helper functions.
    
      Add support for rotating the video via OpenGL.
    
      Add options to determine where borders will be added when adjusting for aspect.
    
      Apply forgotten move of apply_border_pos function.
    
      Extract window creation code to common file.
    
      Make VDPAU support work again with latest FFmpeg.
    
      img_format : document why mp_get_chroma_shift does not work for NV12/NV21
    
      Minor spelling/grammar fixes.
    

    For detailed line by line authorship please see svn log of mplayer
    
svn ://svn.mplayerhq.hu/mplayer/trunk
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavfilter/libmpcodecs/img_format.c
    • [DH] libavfilter/libmpcodecs/img_format.h
    • [DH] libavfilter/libmpcodecs/libvo/video_out.h
    • [DH] libavfilter/libmpcodecs/mp_image.c
    • [DH] libavfilter/libmpcodecs/vf_fspp.c
    • [DH] libavfilter/libmpcodecs/vf_ilpack.c
    • [DH] libavfilter/libmpcodecs/vf_pp7.c
    • [DH] libavfilter/libmpcodecs/vf_uspp.c

  • Trying to scale a webm video to 50% of its resolution using FFMPEG but keep getting an error (video has transparency btw)

    6 février 2021, par DistantDigit

    I'm trying to scale down a webm video with transparency using this line of commands (based off of an answer in this stackoverflow question @ How to keep transparency when scale webm file with ffmpeg) :

    &#xA;

    ffmpeg -c:v libvpx -i in.webm -c:v libvpx -vf scale=400:416 -auto-alt-ref 0 out.webm

    &#xA;

    but I keep getting errors (for example) :

    &#xA;

    [libvpx @ 00000128eb6123c0] Invalid sync code 310042.&#xA;[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder&#xA;Cannot determine format of input stream 0:0 after EOF&#xA;

    &#xA;

    Full log (I've removed a ton of the same exact message with "..."'s) :

    &#xA;

    ffmpeg version 2021-02-02-git-2367affc2c-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers&#xA;  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)&#xA;  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint&#xA;  libavutil      56. 64.100 / 56. 64.100&#xA;  libavcodec     58.120.100 / 58.120.100&#xA;  libavformat    58. 65.101 / 58. 65.101&#xA;  libavdevice    58. 11.103 / 58. 11.103&#xA;  libavfilter     7.101.100 /  7.101.100&#xA;  libswscale      5.  8.100 /  5.  8.100&#xA;  libswresample   3.  8.100 /  3.  8.100&#xA;  libpostproc    55.  8.100 / 55.  8.100&#xA;[libvpx @ 00000128eb6123c0] v1.9.0-146-gebb5ffc1d&#xA;[libvpx @ 00000128eb6123c0] Invalid sync code 310042.&#xA;[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder&#xA;[libvpx @ 00000128eb6123c0] Invalid sync code 007a49.&#xA;[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder&#xA;[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.&#xA;[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder&#xA;...&#xA;...&#xA;...&#xA;[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.&#xA;[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder&#xA;[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.&#xA;[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder&#xA;[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.&#xA;[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder&#xA;[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.&#xA;[matroska,webm @ 00000128eb60f040] decoding for stream 0 failed&#xA;[matroska,webm @ 00000128eb60f040] Could not find codec parameters for stream 0 (Video: vp8 (libvpx), none(progressive), 800x832): unspecified pixel format&#xA;Consider increasing the value for the &#x27;analyzeduration&#x27; (0) and &#x27;probesize&#x27; (5000000) options&#xA;Input #0, matroska,webm, from &#x27;in.webm&#x27;:&#xA;  Metadata:&#xA;    encoder         : libwebm-0.2.1.0&#xA;    creation_time   : 2017-12-02T12:06:12.000000Z&#xA;  Duration: 00:00:10.00, start: 0.000000, bitrate: 2592 kb/s&#xA;    Stream #0:0(eng): Video: vp8, none(progressive), 800x832, SAR 1:1 DAR 25:26, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)&#xA;    Metadata:&#xA;      alpha_mode      : 1&#xA;[libvpx @ 00000128eb612a40] v1.9.0-146-gebb5ffc1d&#xA;Stream mapping:&#xA;  Stream #0:0 -> #0:0 (vp8 (libvpx) -> vp8 (libvpx))&#xA;Press [q] to stop, [?] for help&#xA;[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder&#xA;Error while decoding stream #0:0: Invalid data found when processing input&#xA;[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder&#xA;Error while decoding stream #0:0: Invalid data found when processing input&#xA;[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder&#xA;...&#xA;...&#xA;...&#xA;Error while decoding stream #0:0: Invalid data found when processing input&#xA;[NULL @ 00000128eb6123c0] Invalid sync code 01f096.&#xA;[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder&#xA;Error while decoding stream #0:0: Invalid data found when processing input&#xA;[NULL @ 00000128eb6123c0] Invalid sync code 01f096.&#xA;[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder&#xA;Error while decoding stream #0:0: Invalid data found when processing input&#xA;[NULL @ 00000128eb6123c0] Invalid sync code 009c96.&#xA;[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder&#xA;Error while decoding stream #0:0: Invalid data found when processing input&#xA;Cannot determine format of input stream 0:0 after EOF&#xA;Error marking filters as finished&#xA;Conversion failed!&#xA;

    &#xA;

    Log of ffmpeg -i input.webm :

    &#xA;

    ffmpeg version 2021-02-02-git-2367affc2c-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers&#xA;  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)&#xA;  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint&#xA;  libavutil      56. 64.100 / 56. 64.100&#xA;  libavcodec     58.120.100 / 58.120.100&#xA;  libavformat    58. 65.101 / 58. 65.101&#xA;  libavdevice    58. 11.103 / 58. 11.103&#xA;  libavfilter     7.101.100 /  7.101.100&#xA;  libswscale      5.  8.100 /  5.  8.100&#xA;  libswresample   3.  8.100 /  3.  8.100&#xA;  libpostproc    55.  8.100 / 55.  8.100&#xA;Input #0, matroska,webm, from &#x27;input.webm&#x27;:&#xA;  Metadata:&#xA;    encoder         : libwebm-0.2.1.0&#xA;    creation_time   : 2017-12-02T12:06:12.000000Z&#xA;  Duration: 00:00:10.00, start: 0.000000, bitrate: 2592 kb/s&#xA;    Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv), 800x832, SAR 1:1 DAR 25:26, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)&#xA;    Metadata:&#xA;      alpha_mode      : 1&#xA;At least one output file must be specified&#xA;

    &#xA;

  • ffmpeg how to trigger color changes based on time

    2 janvier 2021, par Plazar99

    My goal is to modify the color of an image overlay at specific times in a video file.&#xA;I use AI to determine the emotion of the subtitles, and change the background color based on emotions.&#xA;I've already figured out the subtitle.srt usage, and I know when to trigger which color.&#xA;I need a clue on how to do it in ffmpeg.

    &#xA;

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