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Médias (17)

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Autres articles (42)

  • 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 (...)

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

Sur d’autres sites (5128)

  • lavc/vvc_mc : R-V V dmvr

    15 décembre 2024, par sunyuechi
    lavc/vvc_mc : R-V V dmvr

                                         k230               banana_f3
    
dmvr_8_12x20_c :                       619.3 ( 1.00x)    624.1 ( 1.00x)
    
dmvr_8_12x20_rvv_i32 :                 128.6 ( 4.82x)    103.4 ( 6.04x)
    
dmvr_8_20x12_c :                       610.0 ( 1.00x)    665.6 ( 1.00x)
    
dmvr_8_20x12_rvv_i32 :                 137.6 ( 4.44x)    92.9 ( 7.17x)
    
dmvr_8_20x20_c :                      1008.0 ( 1.00x)    1082.7 ( 1.00x)
    
dmvr_8_20x20_rvv_i32 :                 221.1 ( 4.56x)    155.4 ( 6.97x)
    
dmvr_h_8_12x20_c :                    2008.0 ( 1.00x)    2009.7 ( 1.00x)
    
dmvr_h_8_12x20_rvv_i32 :               239.6 ( 8.38x)    186.7 (10.77x)
    
dmvr_h_8_20x12_c :                    1989.5 ( 1.00x)    2009.4 ( 1.00x)
    
dmvr_h_8_20x12_rvv_i32 :               230.3 ( 8.64x)    155.4 (12.93x)
    
dmvr_h_8_20x20_c :                    3304.1 ( 1.00x)    3342.9 ( 1.00x)
    
dmvr_h_8_20x20_rvv_i32 :               378.3 ( 8.73x)    248.9 (13.43x)
    
dmvr_hv_8_12x20_c :                   3609.8 ( 1.00x)    3603.4 ( 1.00x)
    
dmvr_hv_8_12x20_rvv_i32 :              369.1 ( 9.78x)    322.1 (11.19x)
    
dmvr_hv_8_20x12_c :                   3628.3 ( 1.00x)    3624.2 ( 1.00x)
    
dmvr_hv_8_20x12_rvv_i32 :              322.8 (11.24x)    238.7 (15.19x)
    
dmvr_hv_8_20x20_c :                   5933.8 ( 1.00x)    5936.6 ( 1.00x)
    
dmvr_hv_8_20x20_rvv_i32 :              526.5 (11.27x)    374.1 (15.87x)
    
dmvr_v_8_12x20_c :                    2156.3 ( 1.00x)    2155.4 ( 1.00x)
    
dmvr_v_8_12x20_rvv_i32 :               239.6 ( 9.00x)    176.2 (12.24x)
    
dmvr_v_8_20x12_c :                    2137.6 ( 1.00x)    2165.9 ( 1.00x)
    
dmvr_v_8_20x12_rvv_i32 :               230.3 ( 9.28x)    155.2 (13.96x)
    
dmvr_v_8_20x20_c :                    4183.8 ( 1.00x)    3592.9 ( 1.00x)
    
dmvr_v_8_20x20_rvv_i32 :               369.3 (11.33x)    249.2 (14.42x)
    • [DH] libavcodec/riscv/vvc/vvc_mc_rvv.S
    • [DH] libavcodec/riscv/vvc/vvcdsp_init.c

  • How to implement spring animation (mass, tension, friction) in FFmpeg zoompan filter instead of linear interpolation ?

    29 mai, par Mykyta Manuilenko

    I'm trying to create a zoom-in and zoom-out animation using FFmpeg's zoompan filter, but I want to replace the linear interpolation with a spring animation that uses physics parameters (mass, tension, friction).

    


    My input parameters :

    


    "zoompan": {
  "focusRect": {
    "x": 1086.36,
    "y": 641.87,
    "width": 613,
    "height": 345
  },            
  "easing": {
    "mass": 1,
    "tension": 120,
    "friction": 20
  }
}


    


    Current working linear animation :

    


    ffmpeg -framerate 25 -loop 1 -i input.png \
  -filter_complex "\
    [0:v]scale=6010:3380,setsar=1,split=3[zoomin_input][hold_input][zoomout_input]; \
    [zoomin_input]zoompan= \
      z='iw/(iw/zoom + (ow - iw)/duration)': \
      x='x + (3400 - 0)/duration': \
      y='y + (2009 - 0)/duration': \
      d=25:fps=25:s=1920x1080, \
      trim=duration=1,setpts=PTS-STARTPTS[zoomin]; \
    [hold_input]crop=1920:1080:3400:2009,trim=duration=4,setpts=PTS-STARTPTS[hold]; \
    [zoomout_input]zoompan=\
      zoom='if(eq(on,0),iw/ow,iw/(iw/zoom + (iw-ow)/duration))':\
      x='if(eq(on,0),3400,x + (0-3400)/duration)':\
      y='if(eq(on,0),2009,y + (0-2009)/duration)':\
      d=25:fps=25:s=1920x1080, \
      trim=duration=1,setpts=PTS-STARTPTS[zoomout];
    [zoomin][hold][zoomout]concat=n=3:v=1:a=0[outv]" \
  -map "[outv]" \
  -crf 23 \
  -preset medium \
  -c:v libx264 \
  -pix_fmt yuv420p \
  output.mp4


    


    Notes :

    


      


    • It creates a perfectly straight zoom path to the specific point on the screen (similar to pinch-zooming on a smartphone - straight zooming to the center of the focus rectangle)

      


      • 


    • To improve the quality of the output, I upscale it beforehand

      


      • 


    


    What I want to achieve :

    


    Instead of linear interpolation, I want to implement a spring function with these physics parameters :

    


      

    • mass : 1

      • 


    • tension : 120

      • 


    • friction : 20

      • 


    


    Note that these params can be changed.

    


    Also, I want to preserve a perfectly straight zoom path to the specific point on the screen (similar to pinch-zooming on a smartphone).

    


    Question :

    


    How can I properly implement a spring animation function in FFmpeg's zoompan filter ?

    


  • Is this a problem in my command, the stream, or FFMPEG itself ?

    10 juin, par Ali Mustafa

    I am trying to download a section from approximately 06:40:00 to 06:44:00 from this stream : https://kick.com/grossgore/videos/8d36c089-ff2b-4167-9c92-bc8a3a9d033b

    


    I found the m3u8 URL : https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/playlist.m3u8

    


    I run the following command :

    


    ffmpeg -ss 06:40:00 -to 06:44:00 -i https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/playlist.m3u8 -c copy out.mp4


    


    The command runs for a while, but for some reason the output file is empty once the program has finished. How do I figure out what the problem is ?

    


    Log :

    


    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
  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
[hls @ 0x633e19ea3200] Skip ('#EXT-X-VERSION:3')
[hls @ 0x633e19ea3200] Skip ('#ID3-EQUIV-TDTG:2025-05-25T21:04:39')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-TWITCH-ELAPSED-SECS:0.000')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-TWITCH-TOTAL-SECS:29231.935')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T12:56:26.675Z')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T12:56:39.175Z')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T12:56:51.675Z')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T12:57:04.175Z')
...
...
...
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T17:38:43.058Z')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T17:38:55.558Z')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-DISCONTINUITY')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-TWITCH-DISCONTINUITY')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T17:39:56.883Z')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T17:40:09.383Z')
...
...
...
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T21:04:17.516Z')
[hls @ 0x633e19ea3200] Skip ('#EXT-X-PROGRAM-DATE-TIME:2025-05-25T21:04:30.016Z')
[hls @ 0x633e19ea3200] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/0.ts' for reading
[hls @ 0x633e19ea3200] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/1.ts' for reading
Input #0, hls, from 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/playlist.m3u8':
  Duration: 08:07:11.94, start: 64.171000, bitrate: 0 kb/s
  Program 0 
    Metadata:
      variant_bitrate : 0
  Stream #0:0: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp
    Metadata:
      variant_bitrate : 0
  Stream #0:1: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 60 tbr, 90k tbn, 120 tbc
    Metadata:
      variant_bitrate : 0
  Stream #0:2: Data: timed_id3 (ID3  / 0x20334449)
    Metadata:
      variant_bitrate : 0
Output #0, mp4, to 'out.mp4':
  Metadata:
    encoder         : Lavf58.76.100
  Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 60 tbr, 90k tbn, 90k tbc
    Metadata:
      variant_bitrate : 0
  Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp
    Metadata:
      variant_bitrate : 0
Stream mapping:
  Stream #0:1 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
[hls @ 0x633e19ea3200] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/1921.ts' for reading
[hls @ 0x633e19ea3200] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/1922.ts' for reading
[https @ 0x633e1a43f9c0] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/1923.ts' for reading
[https @ 0x633e1a877300] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/1924.ts' for reading
[https @ 0x633e1a43f9c0] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/1925.ts' for reading
[https @ 0x633e1a877300] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/1926.ts' for reading
...
...
...
[https @ 0x633e1a877300] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/2338.ts' for reading
[https @ 0x633e1a43f9c0] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/2339.ts' for reading
[https @ 0x633e1a877300] Opening 'https://stream.kick.com/ivs/v1/196233775518/hDSBAWziz2jA/2025/5/25/12/56/LrW3TwZUg7Xk/media/hls/1080p60/2340.ts' for reading
frame=    0 fps=0.0 q=-1.0 Lsize=       0kB 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


    


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