Recherche avancée

Médias (91)

Autres articles (95)

  • Qu’est ce qu’un masque de formulaire

    13 juin 2013, par

    Un masque de formulaire consiste en la personnalisation du formulaire de mise en ligne des médias, rubriques, actualités, éditoriaux et liens vers des sites.
    Chaque formulaire de publication d’objet peut donc être personnalisé.
    Pour accéder à la personnalisation des champs de formulaires, il est nécessaire d’aller dans l’administration de votre MediaSPIP puis de sélectionner "Configuration des masques de formulaires".
    Sélectionnez ensuite le formulaire à modifier en cliquant sur sont type d’objet. (...)

  • Formulaire personnalisable

    21 juin 2013, par

    Cette page présente les champs disponibles dans le formulaire de publication d’un média et il indique les différents champs qu’on peut ajouter. Formulaire de création d’un Media
    Dans le cas d’un document de type média, les champs proposés par défaut sont : Texte Activer/Désactiver le forum ( on peut désactiver l’invite au commentaire pour chaque article ) Licence Ajout/suppression d’auteurs Tags
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire. (...)

  • 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 (13296)

  • current version of ffmpeg3.3.2 encode twice time of my video,the duration last two times long

    20 juin 2017, par jimmy

    I have a video with 00:01:41.46 play time,and transcode it perfect with ffmpeg-2.1.1,but when I upgrade FFmpeg version to 3.3.2 and compile it with the same compile option and same transcode option as 2.1.1 version used, I got a video with 00:03:21.82 long, I played that video to see what was added after 1:41.46, and find that it just repeat the video from the beginning with no audio, I find out no idea to this issue, it seems to be a bug that FFmpeg introducing, anyone help me !

    here is the log that I had transcoded with ffmpeg 3.3.2 :

    ffmpeg -i natural.mp4 -c:v libx264 -c:a copy output.mp4
    
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    

    
configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm -- prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags=-Irelease/include --extra-ldflags='-Lrelease/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra->libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable->muxers --enable-demuxers
    

    
libavutil      55. 58.100 / 55. 58.100
    
libavcodec     57. 89.100 / 57. 89.100
    
libavformat    57. 71.100 / 57. 71.100
    
libavdevice    57.  6.100 / 57.  6.100
    
libavfilter     6. 82.100 /  6. 82.100
    
libswscale      4.  6.100 /  4.  6.100
    
libswresample   2.  7.100 /  2.  7.100
    
libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
  major_brand     : mp42
    
  minor_version   : 0
    
  compatible_brands: mp42isom
    
  creation_time   : 2009-07-11T08:32:34.000000Z
    
  encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
  Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
Metadata:
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
Metadata:
    
    creation_time   : 2009-07-11T08:33:09.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x2d951e0] using SAR=4/3
    
[libx264 @ 0x2d951e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
    
[libx264 @ 0x2d951e0] profile High, level 4.0
    
[libx264 @ 0x2d951e0] 264 - core 138 r1+3473M a37a143 - H.264/MPEG-4 AVC codec >- Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 >ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 >mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 >fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 >nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 >b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 >keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf >mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'output.mp4':
    
Metadata:
    
  major_brand     : mp42
    
  minor_version   : 0
    
  compatible_brands: mp42isom
    
  encoder         : Lavf57.71.100
    
Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)
    
  Metadata:
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
    encoder         : Lavc57.89.100 libx264
    
  Side data:
    
    cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
  Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
  Metadata:
    
    creation_time   : 2009-07-11T08:33:09.000000Z
    
frame= 4842 fps= 27 q=-1.0 Lsize=  107608kB time=00:03:21.82 
    
bitrate=4367.8kbits/s speed=1.11x     
    
    video:105973kB audio:1556kB subtitle:0kB other streams:0kB global headers:0kB >muxing overhead: 0.074199%
    
[libx264 @ 0x2d951e0] frame I:54    Avg QP:19.81  size: 77248
    
[libx264 @ 0x2d951e0] frame P:3960  Avg QP:22.01  size: 25371
    
[libx264 @ 0x2d951e0] frame B:828   Avg QP:23.01  size:  4680
    
[libx264 @ 0x2d951e0] consecutive B-frames: 75.2%  4.6%  4.3% 15.9%
    
[libx264 @ 0x2d951e0] mb I  I16..4: 17.0% 79.0%  3.9%
    
[libx264 @ 0x2d951e0] mb P  I16..4:  2.1%  7.8%  0.2%  P16..4: 43.9%  9.7% 6.4%  0.0%  0.0%    skip:29.9%
    
[libx264 @ 0x2d951e0] mb B  I16..4:  0.2%  1.1%  0.0%  B16..8: 29.2%  1.2%  0.2%  direct: 0.7%  skip:67.3%  L0:49.0% L1:47.7% BI: 3.3%
    
[libx264 @ 0x2d951e0] 8x8 transform intra:78.1% inter:81.6%
    
[libx264 @ 0x2d951e0] coded y,uvDC,uvAC intra: 52.3% 66.4% 11.9% inter: 20.5% >24.2% 0.8%
    
[libx264 @ 0x2d951e0] i16 v,h,dc,p: 32% 22% 28% 18%
    
[libx264 @ 0x2d951e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 19% 43%  3%  3%  3%  5%  2%  4%
    
[libx264 @ 0x2d951e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 24% 12%  4%  8%  7% 11%  4%  5%
    
[libx264 @ 0x2d951e0] i8c dc,h,v,p: 50% 23% 23%  4%
    
[libx264 @ 0x2d951e0] Weighted P-Frames: Y:1.5% UV:0.3%
    
[libx264 @ 0x2d951e0] ref P L0: 71.9% 17.0%  8.5%  2.5%  0.0%
    
[libx264 @ 0x2d951e0] ref B L0: 89.7%  9.2%  1.2%
    
[libx264 @ 0x2d951e0] ref B L1: 97.5%  2.5%
    
[libx264 @ 0x2d951e0] kb/s:4298.67

    Here is the output when use ffmpeg -i natural.mp4 -c copy out.mp4,the output still last double times long :

    ./ffmpeg -i natural.mp4 -c copy out.mp4
    
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    
  configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm --prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags=-Irelease/include --extra-ldflags='-Lrelease/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra-libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable-muxers --enable-demuxers
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
    encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:32:34.000000Z
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:33:09.000000Z
    
Output #0, mp4, to 'out.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    encoder         : Lavf57.71.100
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) ( [0][0][0] / 0x0020), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=2-31, 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:32:34.000000Z
    
    Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:33:09.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame= 4842 fps=2243 q=-1.0 Lsize=  222944kB time=00:03:21.91 
    
bitrate=9045.4kbits/s speed=93.5x    
    
video:221299kB audio:1556kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.039627%

    Here is the output what ffmpeg-2.1.1 generate,It’s executed correctly :

    ./ffmpeg -i natural.mp4 -c copy output2.mp4
    
ffmpeg version 2.1.1 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Mar 10 2017 13:56:14 with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    
  configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm --prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags='-I${ffmpeg_exported_release_dir}/include' --extra-ldflags='-L${ffmpeg_exported_release_dir}/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra-libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable-muxers --enable-demuxers
    
  libavutil      52. 48.101 / 52. 48.101
    
  libavcodec     55. 39.101 / 55. 39.101
    
  libavformat    55. 19.104 / 55. 19.104
    
  libavdevice    55.  5.100 / 55.  5.100
    
  libavfilter     3. 90.100 /  3. 90.100
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2d2e900] multiple edit list entries, a/v desync might occur, patch welcome
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    creation_time   : 2009-07-11 08:32:34
    
    encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:32:34
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:33:09
    
Output #0, mp4, to 'output2.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    encoder         : Lavf55.19.104
    
    Stream #0:0(eng): Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=2-31, 8976 kb/s, 23.98 fps, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:32:34
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:33:09
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame= 2421 fps=0.0 q=-1.0 Lsize=  112273kB time=00:01:41.49 bitrate=9062.0kbits/s    
    
video:110650kB audio:1556kB subtitle:0 global headers:0kB muxing overhead 0.060302%

    Here is the video link

  • Adding multiple audio files to video with different start times with ffmpeg : Error initializing complex filters : Invalid argument

    19 janvier 2024, par fullStackChris

    Here's my command :

    


    ffmpeg -i ./video/super-simple.mp4 -i ./audio/super-simple/1.wav -i ./audio/super-simple/2.wav -filter_complex \
"[1]adelay=2480|2480[a1]; \
 [2]adelay=8919|8919[a2]; \
 [0][a1][a2]amix=3" -c:v copy -c:a aac -strict experimental ./video/super-simple.mp4.final.mp4


    


    However I get the following output, ending with a cryptic error :

    


    [aist#1:0/pcm_f32le @ 0x7fe723010e00] Guessed Channel Layout: mono
Input #1, wav, from '/audio/super-simple/1.wav':
  Duration: 00:00:04.44, bitrate: 1031 kb/s
  Stream #1:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 32000 Hz, 1 channels, flt, 1024 kb/s
[aist#2:0/pcm_f32le @ 0x7fe72300f4c0] Guessed Channel Layout: mono
Input #2, wav, from '/audio/super-simple/2.wav':
  Duration: 00:00:03.95, bitrate: 1032 kb/s
  Stream #2:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 32000 Hz, 1 channels, flt, 1024 kb/s
[fc#0 @ 0x7fe723004340] Stream specifier '' in filtergraph description [1]adelay=2480|2480[a1];  [2]adelay=8919|8919[a2];  [0][a1][a2]amix=3 matches no streams.
Error initializing complex filters: Invalid argument


    


    What is going on here ? I've been reading stackoverflow for hours and I beleive this syntax is correct, but apparently not. Do I need to specify the video somehow for [0] to be recognized, or is that implicit since the video is my first input ?

    


  • How to grab individual frames from streaming video with VLC.DotNet and pass them to OpenCV

    12 février 2018, par user2219675

    I have a RTP video stream (MPEG TS & H264) that does not display well when opened with OpenCV ffmpeg. The video is not decoded well and contains artifacts while it is displayed correctly in VLC. So I thought to grab the video frames with VLC library (VLC DotNet) convert them to Mat and pass them to OpenCV.

    I couldn’t find any similar solutions. The only solution that seems non optimal is to transcode the stream in VLC to MJPEG stream and them open it in OpenCV.

    Does anyone have a better idea ?

Navigation