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  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 (...)

  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

Sur d’autres sites (9268)

  • ffmpeg : single input file contains multiple streams, how to save each discreetly ?

    9 octobre 2017, par pinhead

    I have been given a .dvs file which was recovered from some proprietary multi-camera security surveillance system. ffprobe returned errors at first but when I switched the extension to .avc I was able to extract video metadata (output below). ffmpeg was able to read this file and export a long video file that essentially jump-cuts between the different cameras in an erratic pattern, like a crazy music video ! Is it possible to use ffmpeg to identify the different parallel video streams and output each camera source as its own file ?

    ffprobe -probesize 1000000000 output :

    ffprobe version 3.2.4 Copyright (c) 2007-2017 the FFmpeg developers
    
  built with Apple LLVM version 7.0.2 (clang-700.1.81)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
[h264 @ 0x7fbd7380da00] Format h264 detected only with low score of 1, misdetection possible!
    
[h264 @ 0x7fbd75000600] non-existing PPS 7 referenced
    
[h264 @ 0x7fbd75000600] Invalid NAL unit 0, skipping.
    
    Last message repeated 2 times
    
[h264 @ 0x7fbd75000600] non-existing PPS 7 referenced
    
[h264 @ 0x7fbd75000600] decode_slice_header error
    
[h264 @ 0x7fbd75000600] no frame!
    
Input #0, h264, from 'FILENAME-OBFISCATED.avc':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: h264 (Baseline), yuv420p(progressive), 704x480, 25 fps, 25 tbr, 1200k tbn, 50 tbc

    Here’s some output of ffmpeg while converting. It looks to me like the different streams may even have different resolutions :

    Output #0, mov, to 'FILENAME-OBFISCATED.mov':
    
  Metadata:
    
    encoder         : Lavf57.56.101
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 704x480, q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc57.64.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
[h264 @ 0x7fb0d4031e00] Invalid NAL unit 0, skipping.
    
    Last message repeated 2 times
    
[h264 @ 0x7fb0d4031e00] non-existing PPS 7 referenced
    
[h264 @ 0x7fb0d4031e00] decode_slice_header error
    
[h264 @ 0x7fb0d4031e00] no frame!
    
Error while decoding stream #0:0: Invalid data found when processing inputed=   0x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
[h264 @ 0x7fb0d4031e00] negative number of zero coeffs at 1 0itrate=1973.5kbits/s speed=0.159x    
    
[h264 @ 0x7fb0d4031e00] error while decoding MB 1 0
    
[h264 @ 0x7fb0d4031e00] concealing 4800 DC, 4800 AC, 4800 MV errors in P frame
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p75x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
[h264 @ 0x7fb0d40b3000] slice type 32 too large at 79911
    
[h264 @ 0x7fb0d40b3000] decode_slice_header error
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p07x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p92x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p59x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
...
    
[h264 @ 0x7fb0d4036200] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
    
[h264 @ 0x7fb0d4036200] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420pdrop=0 speed=10.4x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
frame=203980 fps=261 q=-1.0 Lsize= 1886254kB time=02:15:59.12 bitrate=1893.9kbits/s dup=80 drop=0 speed=10.4x    
    
video:1884523kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.091876%
    
[libx264 @ 0x7fb0d580d800] frame I:16284 Avg QP:21.33  size: 76147
    
[libx264 @ 0x7fb0d580d800] frame P:117556 Avg QP:26.20  size:  4066
    
[libx264 @ 0x7fb0d580d800] frame B:70140 Avg QP:30.19  size:  3019
    
[libx264 @ 0x7fb0d580d800] consecutive B-frames: 50.2%  9.9%  6.2% 33.7%
    
[libx264 @ 0x7fb0d580d800] mb I  I16..4:  8.6% 25.2% 66.2%
    
[libx264 @ 0x7fb0d580d800] mb P  I16..4:  0.4%  1.5%  1.1%  P16..4: 14.2%  6.3%  4.4%  0.0%  0.0%    skip:72.1%
    
[libx264 @ 0x7fb0d580d800] mb B  I16..4:  0.2%  0.5%  0.5%  B16..8: 22.6%  7.6%  2.9%  direct: 2.5%  skip:63.2%  L0:45.2% L1:38.7% BI:16.1%
    
[libx264 @ 0x7fb0d580d800] 8x8 transform intra:30.2% inter:45.3%
    
[libx264 @ 0x7fb0d580d800] coded y,uvDC,uvAC intra: 88.8% 65.6% 41.5% inter: 10.4% 3.8% 0.4%
    
[libx264 @ 0x7fb0d580d800] i16 v,h,dc,p: 11% 11% 40% 39%
    
[libx264 @ 0x7fb0d580d800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 19% 20%  6%  6%  6%  8%  7% 10%
    
[libx264 @ 0x7fb0d580d800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 18% 13%  7%  7%  8%  8%  8%  9%
    
[libx264 @ 0x7fb0d580d800] i8c dc,h,v,p: 51% 20% 23%  6%
    
[libx264 @ 0x7fb0d580d800] Weighted P-Frames: Y:3.1% UV:0.8%
    
[libx264 @ 0x7fb0d580d800] ref P L0: 79.0% 12.6%  6.3%  2.0%  0.2%
    
[libx264 @ 0x7fb0d580d800] ref B L0: 93.6%  5.5%  0.9%
    
[libx264 @ 0x7fb0d580d800] ref B L1: 97.7%  2.3%
    
[libx264 @ 0x7fb0d580d800] kb/s:1892.10

  • Video Quality Assessment (No-reference)

    17 décembre 2020, par Gufran Pathan

    I am looking to analyze the quality of videos using some no-reference methods. ie. I don't have a reference video to compare my videos with.

    



    I want to identify frame-freezes, jitter, jerkiness etc. Basically, temporal artifacts.

    



    There's a lot of academic literature available for this (eg. here), but I'm trying to figure out if there is an open source library / tool that I could use. Would this be possible using tools like FFMPEG ?

    


  • VLC3 compilation error : linking issue with the libavutil library

    4 octobre 2017, par Ivan Kolesnikov

    I tried to compile VLC3 in ubuntu15.10 a long time, but still no luck.
    I configured FFmpeg as follow :

     /ffmpeg-3.3.3$ ./configure —cpu=native —enable-pthreads —enable-bzlib —enable-libdc1394 —enable-libfreetype —enable-frei0r —enable-gnutls —enable-libgsm —enable-libmp3lame —enable-librtmp —enable-libopencv —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libschroedinger —enable-libspeex —enable-libtheora —enable-vaapi —enable-vdpau —enable-libvorbis —enable-libvpx —enable-zlib —enable-libfdk-aac —enable-nonfree —enable-gpl —enable-swscale —enable-libcdio —enable-libxcb —enable-libx264 —enable-libxvid —enable-libopencore-amrnb —enable-version3 —enable-libopencore-amrwb —enable-libvo-amrwbenc —enable-nvenc —enable-openssl —enable-decklink —extra-cflags=-I/home/ivan/Downloads/Blackmagic_DeckLink_SDK_10.9.5/Linux/include —extra-ldflags=-ldl —extra-libs=-ldl —enable-pic

    And configured VLC3 wth the following parameters :

     /vlc-3.0.0-git$ ./configure
    —with-decklink-sdk=I/home/ivan/Downloads/Blackmagic_DeckLink_SDK_10.9.5/Linux/include —disable-chromecas

    The compilation looks fine. Then I tried :

    $ sudo make install

    And got the following error : 

      CCLD     libavio_plugin.la
    
/usr/local/lib/libavutil.a(hwcontext_vaapi.o): In function `vaapi_device_free':
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:899: undefined reference to `XCloseDisplay'
    
/usr/local/lib/libavutil.a(hwcontext_vaapi.o): In function `vaapi_device_create':
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:929: undefined reference to `XOpenDisplay'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:934: undefined reference to `vaGetDisplay'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:941: undefined reference to `XDisplayName'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:931: undefined reference to `XDisplayName'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:958: undefined reference to `vaGetDisplayDRM'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:929: undefined reference to `XOpenDisplay'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:931: undefined reference to `XDisplayName'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vaapi.c:936: undefined reference to `XDisplayName'
    
/usr/local/lib/libavutil.a(hwcontext_vdpau.o): In function `vdpau_device_create':
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vdpau.c:431: undefined reference to `XOpenDisplay'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vdpau.c:437: undefined reference to `XDisplayString'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vdpau.c:439: undefined reference to `XDefaultScreen'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vdpau.c:439: undefined reference to `vdp_device_create_x11'
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vdpau.c:433: undefined reference to `XDisplayName'
    
/usr/local/lib/libavutil.a(hwcontext_vdpau.o): In function `vdpau_device_free':
    
/home/ivan/ffmpeg-3.3.3/libavutil/hwcontext_vdpau.c:410: undefined reference to `XCloseDisplay'
    
collect2: error: ld returned 1 exit status
    
Makefile:12577: recipe for target 'libavio_plugin.la' failed
    
make[4]: *** [libavio_plugin.la] Error 1
    
make[4]: Leaving directory '/home/ivan/vlc-3.0.0-git/modules'
    
Makefile:25280: recipe for target 'install-recursive' failed
    
make[3]: *** [install-recursive] Error 1
    
make[3]: Leaving directory '/home/ivan/vlc-3.0.0-git/modules'
    
Makefile:25679: recipe for target 'install' failed
    
make[2]: *** [install] Error 2
    
make[2]: Leaving directory '/home/ivan/vlc-3.0.0-git/modules'
    
Makefile:1519: recipe for target 'install-recursive' failed
    
make[1]: *** [install-recursive] Error 1
    
make[1]: Leaving directory '/home/ivan/vlc-3.0.0-git'
    
Makefile:1985: recipe for target 'install' failed

    I already saw the following questions related this situation :
    question1,
    question2,
    question3

    As I understand from these questions, I should move to the end the following libraries in the compile command :

    -lvdpau -lX11 -lva*

    But I still didn’t understand where is the place to moving these libraries.
    Please see the output results of the pkg-config command :

    $ pkg-config —libs libavcodec libavformat libswscale libavutil

    -L/usr/local/lib -lavformat -lXv -lX11 -lXext -lstdc++ -lvdpau -lva -lva-x11 -lX11 -lva -lva-drm -lva -lxcb -lxcb-shm -lxcb -lxcb-xfixes -lxcb-render -lxcb-shape -lxcb -lxcb-shape -lxcb -lcdio_paranoia -lcdio_cdda -lcdio -ljack -lasound -ldc1394 -lssl -lcrypto -lxvidcore -lx264 -lvpx -lm -lvpx -lm -lvpx -lm -lvpx -lm -lvorbisenc -lvorbis -logg -lvo-amrwbenc -ltheoraenc -ltheoradec -logg -lspeex -lschroedinger-1.0 -lrtmp -lz -lgmp -lpulse -lopus -lopenjpeg -DOPJ_STATIC /usr/lib/x86_64-linux-gnu/libopencv_calib3d.so -lopencv_calib3d /usr/lib/x86_64-linux-gnu/libopencv_contrib.so -lopencv_contrib /usr/lib/x86_64-linux-gnu/libopencv_core.so -lopencv_core /usr/lib/x86_64-linux-gnu/libopencv_features2d.so -lopencv_features2d /usr/lib/x86_64-linux-gnu/libopencv_flann.so -lopencv_flann /usr/lib/x86_64-linux-gnu/libopencv_gpu.so -lopencv_gpu /usr/lib/x86_64-linux-gnu/libopencv_highgui.so -lopencv_highgui
    /usr/lib/x86_64-linux-gnu/libopencv_imgproc.so -lopencv_imgproc
    /usr/lib/x86_64-linux-gnu/libopencv_legacy.so -lopencv_legacy
    /usr/lib/x86_64-linux-gnu/libopencv_ml.so -lopencv_ml
    /usr/lib/x86_64-linux-gnu/libopencv_objdetect.so -lopencv_objdetect
    /usr/lib/x86_64-linux-gnu/libopencv_ocl.so -lopencv_ocl
    /usr/lib/x86_64-linux-gnu/libopencv_photo.so -lopencv_photo
    /usr/lib/x86_64-linux-gnu/libopencv_stitching.so -lopencv_stitching
    /usr/lib/x86_64-linux-gnu/libopencv_superres.so -lopencv_superres
    /usr/lib/x86_64-linux-gnu/libopencv_ts.so -lopencv_ts
    /usr/lib/x86_64-linux-gnu/libopencv_video.so -lopencv_video
    /usr/lib/x86_64-linux-gnu/libopencv_videostab.so -lopencv_videostab
    -lopencore-amrwb -lopencore-amrnb -lmp3lame -lgsm -lfreetype -lfdk-aac -lgnutls -lcrystalhd -lm -llzma -lbz2 -lz -pthread -ldl -lavcodec -lXv -lX11 -lXext -lstdc++ -lvdpau -lva -lva-x11 -lX11 -lva -lva-drm -lva -lxcb -lxcb-shm -lxcb -lxcb-xfixes -lxcb-render -lxcb-shape -lxcb -lxcb-shape -lxcb -lcdio_paranoia -lcdio_cdda -lcdio -ljack -lasound -ldc1394 -lssl -lcrypto -lxvidcore -lx264 -lvpx -lm -lvpx -lm -lvpx -lm -lvpx -lm -lvorbisenc -lvorbis -logg -lvo-amrwbenc -ltheoraenc -ltheoradec -logg -lspeex -lschroedinger-1.0 -lrtmp -lz -lgmp -lpulse -lopus -lopenjpeg -DOPJ_STATIC /usr/lib/x86_64-linux-gnu/libopencv_calib3d.so -lopencv_calib3d
    /usr/lib/x86_64-linux-gnu/libopencv_contrib.so -lopencv_contrib
    /usr/lib/x86_64-linux-gnu/libopencv_core.so -lopencv_core
    /usr/lib/x86_64-linux-gnu/libopencv_features2d.so -lopencv_features2d
    /usr/lib/x86_64-linux-gnu/libopencv_flann.so -lopencv_flann
    /usr/lib/x86_64-linux-gnu/libopencv_gpu.so -lopencv_gpu
    /usr/lib/x86_64-linux-gnu/libopencv_highgui.so -lopencv_highgui
    /usr/lib/x86_64-linux-gnu/libopencv_imgproc.so -lopencv_imgproc
    /usr/lib/x86_64-linux-gnu/libopencv_legacy.so -lopencv_legacy
    /usr/lib/x86_64-linux-gnu/libopencv_ml.so -lopencv_ml
    /usr/lib/x86_64-linux-gnu/libopencv_objdetect.so -lopencv_objdetect
    /usr/lib/x86_64-linux-gnu/libopencv_ocl.so -lopencv_ocl
    /usr/lib/x86_64-linux-gnu/libopencv_photo.so -lopencv_photo
    /usr/lib/x86_64-linux-gnu/libopencv_stitching.so -lopencv_stitching
    /usr/lib/x86_64-linux-gnu/libopencv_superres.so -lopencv_superres
    /usr/lib/x86_64-linux-gnu/libopencv_ts.so -lopencv_ts
    /usr/lib/x86_64-linux-gnu/libopencv_video.so -lopencv_video
    /usr/lib/x86_64-linux-gnu/libopencv_videostab.so -lopencv_videostab
    -lopencore-amrwb -lopencore-amrnb -lmp3lame -lgsm -lfreetype -lfdk-aac -lgnutls -lcrystalhd -lm -llzma -lbz2 -lz -pthread -ldl -lswresample -lm -lswscale -lm -lavutil -lm

    And the results only for libavutil library :

    $ pkg-config —libs libavutil

    -L/usr/local/lib -lavutil -lm

    Please also see my VLC
    Makefile

    Can you please to point at the place where these libraries should be reordered ? Also my pkg-config output results are different from the results from the questions above. Any advice or links to solve this question will be helpful.

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