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  • 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 (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (5848)

  • capture my webcam and encode to mp4 with ffmpeg, but the x264 works bad

    17 septembre 2015, par zhangxm1991

    here is my version :
    ffmpeg version : 2.3.3
    libx264 version:142.x

    I wat to capture my video and use ffmpeg and x264 to a mp4 file. the solution is 320x240.
    But i found that the video file is so big. Then i found that the P frame and B frame is very big, even nearly equal to the I frame.I do not know why.

    here is my code :

        c->codec_id = codec_id;
    
    c->bit_rate = 400000;
    
    c->width    = 320;
    
    c->height   = 240;
    
    c->time_base.den = 10;
    
    c->time_base.num = 1;
    
    c->pix_fmt       = AV_PIX_FMT_YUV420P;

    Here is my program output :

    [libx264 @ 0xb6200fc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX 
    

    
[libx264 @ 0xb6200fc0] profile High, level 1.3
    

    
[libx264 @ 0xb6200fc0] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=10 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=400 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    

    
Output #0, mp4, to '/home/2014_09_12/0002b6429579/5/2014_09_12_18_39_12_600.mp4':
    

    
    Stream #0:0: Video: h264 (libx264), yuv420p, 320x240, q=-1--1, 400 kb/s, 10 tbc
    

    
    Stream #0:1: Audio: aac, 8000 Hz, mono, fltp, 32 kb/s
    

    
[mp4 @ 0xb62005e0] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
    

    
[mp4 @ 0xb62005e0] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
    

    
[mp4 @ 0xb62005e0] Encoder did not produce proper pts, making some up.
    

    
[libx264 @ 0xb6200fc0] frame I:3     Avg QP: 2.79  size: 72996
    

    
[libx264 @ 0xb6200fc0] frame P:383   Avg QP: 0.14  size: 54075
    

    
[libx264 @ 0xb6200fc0] frame B:216   Avg QP: 1.95  size: 64784
    

    
[libx264 @ 0xb6200fc0] consecutive B-frames: 30.1% 63.2%  6.0%  0.7%
    

    
[libx264 @ 0xb6200fc0] mb I  I16..4: 16.1% 12.7% 71.2%
    

    
[libx264 @ 0xb6200fc0] mb P  I16..4:  3.5%  5.1% 15.9%  P16..4: 20.3% 22.8% 14.0%  0.0%  0.0%    skip:18.3%
    

    
[libx264 @ 0xb6200fc0] mb B  I16..4:  0.4%  2.5%  8.2%  B16..8: 32.6% 19.8% 13.5%  
    
direct:22.2%  skip: 0.8%  L0:25.5% L1:12.8% BI:61.6%
    

    
[libx264 @ 0xb6200fc0] final ratefactor: -32.89
    

    
[libx264 @ 0xb6200fc0] 8x8 transform intra:21.0% inter:29.6%
    

    
[libx264 @ 0xb6200fc0] coded y,uvDC,uvAC intra: 100.0% 100.0% 100.0% inter: 83.3% 80.9% 80.9%
    

    
[libx264 @ 0xb6200fc0] i16 v,h,dc,p:  5%  7% 42% 46%
    

    
[libx264 @ 0xb6200fc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 12% 23%  8%  6%  6%  8%  9% 14%
    

    
[libx264 @ 0xb6200fc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 11% 19% 10%  8%  8% 10% 10% 12%
    

    
[libx264 @ 0xb6200fc0] i8c dc,h,v,p: 78%  3%  4% 15%
    

    
[libx264 @ 0xb6200fc0] Weighted P-Frames: Y:0.5% UV:0.3%
    

    
[libx264 @ 0xb6200fc0] ref P L0: 43.4% 14.6% 19.0% 22.9%  0.1%
    

    
[libx264 @ 0xb6200fc0] ref B L0: 63.3% 35.7%  1.1%
    

    
[libx264 @ 0xb6200fc0] ref B L1: 97.0%  3.0%
    

    
[libx264 @ 0xb6200fc0] kb/s:4.53
    

    
[aac @ 0xb6201ba0] 2 frames left in the queue on closing

  • capture my webcam and encode to mp4 with ffmpeg, but the x264 works bad

    17 septembre 2015, par zhangxm1991

    here is my version :
    ffmpeg version : 2.3.3
    libx264 version:142.x

    I wat to capture my video and use ffmpeg and x264 to a mp4 file. the solution is 320x240.
    But i found that the video file is so big. Then i found that the P frame and B frame is very big, even nearly equal to the I frame.I do not know why.

    here is my code :

        c->codec_id = codec_id;
    
    c->bit_rate = 400000;
    
    c->width    = 320;
    
    c->height   = 240;
    
    c->time_base.den = 10;
    
    c->time_base.num = 1;
    
    c->pix_fmt       = AV_PIX_FMT_YUV420P;

    Here is my program output :

    [libx264 @ 0xb6200fc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX 
    

    
[libx264 @ 0xb6200fc0] profile High, level 1.3
    

    
[libx264 @ 0xb6200fc0] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=10 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=400 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    

    
Output #0, mp4, to '/home/2014_09_12/0002b6429579/5/2014_09_12_18_39_12_600.mp4':
    

    
    Stream #0:0: Video: h264 (libx264), yuv420p, 320x240, q=-1--1, 400 kb/s, 10 tbc
    

    
    Stream #0:1: Audio: aac, 8000 Hz, mono, fltp, 32 kb/s
    

    
[mp4 @ 0xb62005e0] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
    

    
[mp4 @ 0xb62005e0] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
    

    
[mp4 @ 0xb62005e0] Encoder did not produce proper pts, making some up.
    

    
[libx264 @ 0xb6200fc0] frame I:3     Avg QP: 2.79  size: 72996
    

    
[libx264 @ 0xb6200fc0] frame P:383   Avg QP: 0.14  size: 54075
    

    
[libx264 @ 0xb6200fc0] frame B:216   Avg QP: 1.95  size: 64784
    

    
[libx264 @ 0xb6200fc0] consecutive B-frames: 30.1% 63.2%  6.0%  0.7%
    

    
[libx264 @ 0xb6200fc0] mb I  I16..4: 16.1% 12.7% 71.2%
    

    
[libx264 @ 0xb6200fc0] mb P  I16..4:  3.5%  5.1% 15.9%  P16..4: 20.3% 22.8% 14.0%  0.0%  0.0%    skip:18.3%
    

    
[libx264 @ 0xb6200fc0] mb B  I16..4:  0.4%  2.5%  8.2%  B16..8: 32.6% 19.8% 13.5%  
    
direct:22.2%  skip: 0.8%  L0:25.5% L1:12.8% BI:61.6%
    

    
[libx264 @ 0xb6200fc0] final ratefactor: -32.89
    

    
[libx264 @ 0xb6200fc0] 8x8 transform intra:21.0% inter:29.6%
    

    
[libx264 @ 0xb6200fc0] coded y,uvDC,uvAC intra: 100.0% 100.0% 100.0% inter: 83.3% 80.9% 80.9%
    

    
[libx264 @ 0xb6200fc0] i16 v,h,dc,p:  5%  7% 42% 46%
    

    
[libx264 @ 0xb6200fc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 12% 23%  8%  6%  6%  8%  9% 14%
    

    
[libx264 @ 0xb6200fc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 11% 19% 10%  8%  8% 10% 10% 12%
    

    
[libx264 @ 0xb6200fc0] i8c dc,h,v,p: 78%  3%  4% 15%
    

    
[libx264 @ 0xb6200fc0] Weighted P-Frames: Y:0.5% UV:0.3%
    

    
[libx264 @ 0xb6200fc0] ref P L0: 43.4% 14.6% 19.0% 22.9%  0.1%
    

    
[libx264 @ 0xb6200fc0] ref B L0: 63.3% 35.7%  1.1%
    

    
[libx264 @ 0xb6200fc0] ref B L1: 97.0%  3.0%
    

    
[libx264 @ 0xb6200fc0] kb/s:4.53
    

    
[aac @ 0xb6201ba0] 2 frames left in the queue on closing

  • Problem with ffplay from webcam stream using complex filters

    29 mai 2022, par efelbar

    I'm trying to stream video from a webcam (at /dev/video2) through ffplay to scale and recolor it, add some text, and then reduce the number of colors with palettes. I don't get any errors, but running the ffplay command :

    


    ffplay -i /dev/video2 -vf "hflip,\
  colorbalance=\
    rs=0.4:\
    bs=-0.4\
  ,\
  scale=\
    trunc(iw/8):\
    trunc(ih/8)\
  ,\
  drawtext=\
    text=\
      'efelbar':\
      fontcolor=white:\
      fontsize=10:\
      box=1:\
      boxcolor=black:\
      boxborderw=5:\
      x=(w-text_w)/2:\
      y=(h-text_h)/2\
  ,\
  split[s0][s1];\
  [s0]palettegen=\
    max_colors=16\
  [p];\
  [s1][p]paletteuse"


    


    seems to stall, and fails to produce video output.

    


    Running the simpler command ffplay -i /dev/video2 -vf "split[s0][s1];[s0]palettegen=max_colors=16[p];[s1][p]paletteuse", which takes a stream from a webcam and (should) reduce the number of colors, results in it just sitting there without showing the actual output stream. This might just be a performance issue because I'm on older hardware, but it doesn't give output relfective of that.

    


    The output of that command is as follows :

    


    ffplay version n5.0 Copyright (c) 2003-2022 the FFmpeg developers
  built with gcc 11.2.0 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librav1e --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-shared --enable-version3
  libavutil      57. 17.100 / 57. 17.100
  libavcodec     59. 18.100 / 59. 18.100
  libavformat    59. 16.100 / 59. 16.100
  libavdevice    59.  4.100 / 59.  4.100
  libavfilter     8. 24.100 /  8. 24.100
  libswscale      6.  4.100 /  6.  4.100
  libswresample   4.  3.100 /  4.  3.100
  libpostproc    56.  3.100 / 56.  3.100
Input #0, video4linux2,v4l2, from '/dev/video2':B sq=    0B f=0/0   
  Duration: N/A, start: 254970.739108, bitrate: 147456 kb/s
  Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456 kb/s, 30 fps, 30 tbr, 1000k tbn


    


    I'm running this on a thinkpad t420s, so I definitely wouldn't be surprised if my laptop just can't process video that quickly. If that is the case, suggestions for optimizations would be great !

    


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