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  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • 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 (8056)

  • Revision 0643c3f133 : Merge "Add support for tx_select in i8x8 encoding in keyframes." into experiment

    9 mars 2013, par Ronald S. Bultje

    Changed Paths : Modify /vp9/encoder/vp9_encodeframe.c Modify /vp9/encoder/vp9_rdopt.c Merge "Add support for tx_select in i8x8 encoding in keyframes." into experimental

  • Revision cb7acbc0e1 : Merge "Add vp9_idct4_1d_sse2" into experimental

    9 mars 2013, par Yunqing Wang

    Merge "Add vp9_idct4_1d_sse2" into experimental

  • RTSP scene detection with ffmpeg

    3 septembre 2020, par Tobias

    I have a RTSP-stream and want to save individual images, whenever the scene is changing. The idea is actually to categorize these images manually and use them to train TensorFlow. I can easily grab the whole stream and generate thousands of images if I don't use the scene filter :

    


    ffmpeg -i rtsp://url -an -strftime 1 "%Y%m%d%H%M%S_scenechange.png"


    


    But as soon as I add the scene-filter ffmpeg is not saving any image, no matter how much the scene changes, the command is just extended by one parameter :

    


    ffmpeg -i rtsp://url -an -filter:v "select='gt(scene,0.1)'" -strftime 1 "%Y%m%d%H%M%S_scenechange.png"


    


    It starts ffmpeg with following output and then quits unexpectedly some minutes later :

    


    ffmpeg version git-2020-08-31-4a11a6f Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 10.2.1 (GCC) 20200805
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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --enable-librav1e --enable-libsvtav1 --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil      56. 58.100 / 56. 58.100
libavcodec     58.101.101 / 58.101.101
libavformat    58. 51.101 / 58. 51.101
libavdevice    58. 11.101 / 58. 11.101
libavfilter     7. 87.100 /  7. 87.100
libswscale      5.  8.100 /  5.  8.100
libswresample   3.  8.100 /  3.  8.100
libpostproc    55.  8.100 / 55.  8.100
Input #0, rtsp, from 'rtsp://url':
Metadata:
title           : hysxrtpsion
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: h264 (High), yuv420p(progressive), 1920x1080, 15 fps, 15 tbr, 90k tbn, 30 tbc
Stream #0:1: Audio: aac (LC), 8000 Hz, mono, fltp
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> png (native))
Press [q] to stop, [?] for help
Output #0, image2, to 'mHS_scenechange.png':
Metadata:
title           : hysxrtpsion
encoder         : Lavf58.51.101
Stream #0:0: Video: png, rgb24, 1920x1080, q=2-31, 200 kb/s, 15 fps, 15 tbn,
15 tbc
Metadata:
  encoder         : Lavc58.101.101 png
[rtsp @ 00000000004c5b80] max delay reached. need to consume packet
[rtsp @ 00000000004c5b80] RTP: missed 1 packets
[rtsp @ 00000000004c5b80] max delay reached. need to consume packet
[rtsp @ 00000000004c5b80] RTP: missed 1 packets
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=   0x

video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)


    


    I looked at the mentioned options -ss -t -frames, but as you can see they're not used at all.

    


    Does anyone have more experience with that and could hint me in the right direction ? As the filter is the only single change I'm a bit lost here.

    


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