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Autres articles (85)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Installation en mode standalone

    4 février 2011, par

    L’installation de la distribution MediaSPIP se fait en plusieurs étapes : la récupération des fichiers nécessaires. À ce moment là deux méthodes sont possibles : en installant l’archive ZIP contenant l’ensemble de la distribution ; via SVN en récupérant les sources de chaque modules séparément ; la préconfiguration ; l’installation définitive ;
    [mediaspip_zip]Installation de l’archive ZIP de MediaSPIP
    Ce mode d’installation est la méthode la plus simple afin d’installer l’ensemble de la distribution (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

Sur d’autres sites (13156)

  • FFMPEG Error VC1 to X264 (maybe decoding VC1)

    29 janvier 2013, par Xatian

    I am encountering the following error when transcoding using FFMPEG.
    It seams to me that it's an error decoding the VC1 format and has actually nothing to do with the target format (x264) I want to transcode.

    I tracked the error to this source-file :

    http://cekirdek.pardus.org.tr/ ismail/ffmpeg-docs/vc1_8c-source.html

    but I don't know how to set the profile to a value != simple.

    FFMPEG Output :

    ffmpeg version 1.1 Copyright (c) 2000-2013 the FFmpeg developers
     built on Jan 16 2013 22:52:43 with gcc 4.6.3 (Gentoo 4.6.3 p1.10, pie-0.5.2)
     configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-O2 -march=native -pipe' --extra-cflags='-O2 -march=native -pipe' --extra-cxxflags='-O2 -march=native -pipe' --disable-static --enable-gpl --enable-postproc --enable-avfilter --disable-stripping --disable-debug --disable-doc --disable-network --disable-vaapi --disable-vdpau --disable-ffplay --disable-runtime-cpudetect --enable-libx264 --disable-indev=v4l2 --disable-indev=alsa --disable-indev=oss --disable-indev=jack --disable-outdev=alsa --disable-outdev=oss --disable-outdev=sdl --enable-libfreetype --disable-amd3dnow --disable-amd3dnowext --disable-altivec --disable-avx --disable-mmxext --disable-vis --disable-neon --cpu=host --enable-hardcoded-tables
     libavutil      52. 13.100 / 52. 13.100
     libavcodec     54. 86.100 / 54. 86.100
     libavformat    54. 59.106 / 54. 59.106
     libavdevice    54.  3.102 / 54.  3.102
     libavfilter     3. 32.100 /  3. 32.100
     libswscale      2.  1.103 /  2.  1.103
     libswresample   0. 17.102 /  0. 17.102
     libpostproc    52.  2.100 / 52.  2.100
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] Old interlaced mode is not supported
    [NULL @ 0x1f99a90] Old WMV3 version detected, some frames may be decoded incorrectly
    [NULL @ 0x1f99a90] Old interlaced mode is not supported
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    Last message repeated 1 times
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    Last message repeated 1 times
    ======
    ---> This goes on forever ... skipped
    ======
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] Chroma scaling is not supported, expect wrong picture
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
    [NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
    [vc1 @ 0x1f93760] max_analyze_duration 5000000 reached at 5000000
    [vc1 @ 0x1f93760] Could not find codec parameters for stream 0 (Video: vc1): unspecified size
    Consider increasing the value for the 'analyzeduration' and 'probesize' options
    [vc1 @ 0x1f93760] Estimating duration from bitrate, this may be inaccurate
    test.vc1: could not find codec parameters

    Here is the CMD-line i use ... xD
    Basically I stripped EVERYTHING (codec-related and quality-related) because the error happens no matter what I pass ...

    ffmpeg -i test.vc1 test.mkv
  • How to grap voice and vedio in ffmpeg \ mplayer\mencoder ?

    4 février 2013, par Kill Kill

    My target is to grap voice and vedio via webcamera,there are three ways to do :

    1.ffmpeg -f oss -i /dev/dsp -f video4linux2 -r 25 -b 500000 -s 320x240 -i /dev/video0 out.mpg
    WARNING : gnome-keyring: : couldn't connect to : /home/debian/.cache/keyring-4Hzs4r/pkcs11 : No such file or directory
    ffmpeg version 0.8.5-6:0.8.5-1, Copyright (c) 2000-2012 the Libav developers
    built on Jan 13 2013 16:02:15 with gcc 4.7.2
    * THIS PROGRAM IS DEPRECATED *
    This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
    [oss @ 0x9d63c60] /dev/dsp : No such file or directory
    /dev/dsp : Input/output error

    in my computer how to revise it ?

    2.mplayer tv :// -tv driver=v4l2:input=0:width=640:height=480:fps=25 -vo x11
    i can see the veido when the command run ,how can l save the output into a file and grap the voice ?

    3.mencoder tv :// -tv driver=v4l2:width=800:height=600:device=/dev/video0:fps=30:outfmt=yuy2:forceaudio:alsa:adevice=hw.2,0 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1800 -ffourcc xvid -oac mp3lame -lameopts cbr=128 -o output.avi

    MEncoder svn r34540 (Debian), built with gcc-4.7 (C) 2000-2012 MPlayer Team
    success : format : 9 data : 0x0 - 0x0
    TV file format detected.
    Selected driver : v4l2
    name : Video 4 Linux 2 input
    author : Martin Olschewski
    comment : first try, more to come
    v4l2 : your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was used instead.
    Selected device : PC Camera
    Capabilities : video capture read/write streaming
    supported norms :
    inputs : 0 = zc3xx ;
    Current input : 0
    Current format : unknown (0x4745504a)
    tv.c : norm_from_string(pal) : Bogus norm parameter, setting default.
    v4l2 : ioctl enum norm failed : Inappropriate ioctl for device
    Error : Cannot set norm !
    Selected input hasn't got a tuner !
    ALSA lib pcm_hw.c:1401 :(_snd_pcm_hw_open) Invalid value for card
    Error opening audio : No such file or directory
    ALSA lib pcm_hw.c:1401 :(_snd_pcm_hw_open) Invalid value for card
    Error opening audio : No such file or directory
    ALSA lib pcm_hw.c:1401 :(_snd_pcm_hw_open) Invalid value for card
    Error opening audio : No such file or directory
    v4l2 : ioctl set mute failed : Invalid argument
    v4l2 : 0 frames successfully processed, 0 frames dropped.
    ============ Sorry, this file format is not recognized/supported =============
    === If this file is an AVI, ASF or MPEG stream, please contact the author ! ===
    Cannot open demuxer.

    Exiting...

  • FFMPEG - Images to Video

    24 mars 2014, par Mahesh
    ffmpeg -f image2 -r 15 -i images/img%03d.jpg -vcodec libx264 video.mp4

    I run this code with exec in php.

    I am not getting the output. The video.mp4 is blank.

    However if i modify this commade to something like this,

    ffmpeg -f image2 -i i.jpg -vcodec libx264 -t 15 video.mp4

    The video is running for 15 seconds.

    I tried -r 1/15. It is not working too.
    Where do i do the mistake ?

    <?php
    $command = "/usr/bin/ffmpeg -f image2 -r 15 -i images/img%03d.jpg -vcodec libx264 video.mp4";
    exec($command);
    ?>

    images folder has img001.jpg img002.jpg ... img005.jpg

    Array
    (
    [0] => ffmpeg version N-48645-gf3c9d8d Copyright (c) 2000-2013 the FFmpeg developers
    [1] =>   built on Jan  9 2013 04:08:32 with gcc 4.7 (Debian 4.7.2-5)
    [2] =>   configuration: --extra-cflags=-I../static/include --extra-ldflags='-L../static/lib -static' --enable-gpl --enable-version3 --enable-static --disable-shared --disable-debug --enable-runtime-cpudetect --disable-x11grab --enable-libmp3lame --enable-libx264 --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxavs --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --disable-ffserver
    [3] =>   libavutil      52. 13.100 / 52. 13.100
    [4] =>   libavcodec     54. 86.100 / 54. 86.100
    [5] =>   libavformat    54. 59.106 / 54. 59.106
    [6] =>   libavdevice    54.  3.102 / 54.  3.102
    [7] =>   libavfilter     3. 32.100 /  3. 32.100
    [8] =>   libswscale      2.  1.103 /  2.  1.103
    [9] =>   libswresample   0. 17.102 /  0. 17.102
    [10] =>   libpostproc    52.  2.100 / 52.  2.100
    [11] => Input #0, image2, from 'images/img%03d.jpg':
    [12] =>   Duration: 00:00:45.00, start: 0.000000, bitrate: N/A
    [13] =>     Stream #0:0: Video: mjpeg, yuvj420p, 200x300 [SAR 1:1 DAR 2:3], 0.07 fps, 0.33 tbr, 0.07 tbn, 0.07 tbc
    [14] => [libx264 @ 0x3283080] using SAR=1/1
    [15] => [libx264 @ 0x3283080] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    [16] => [libx264 @ 0x3283080] profile High, level 1.2
    [17] => [libx264 @ 0x3283080] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=1 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
    [18] => Output #0, mp4, to 'videos/video.mp4':
    [19] =>   Metadata:
    [20] =>     encoder         : Lavf54.59.106
    [21] =>     Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuvj420p, 200x300 [SAR 1:1 DAR 2:3], q=-1--1, 16384 tbn, 0.07 tbc
    [22] => Stream mapping:
    [23] =>   Stream #0:0 -> #0:0 (mjpeg -> libx264)
    [24] => Press [q] to stop, [?] for help
    [25] => Input stream #0:0 frame changed from size:200x300 fmt:yuvj420p to size:200x300 fmt:yuvj444p
    [26] => frame=    3 fps=0.0 q=-1.0 Lsize=      43kB time=00:00:15.00 bitrate=  23.2kbits/s
    [27] => video:42kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.912722%
    [28] => [libx264 @ 0x3283080] frame I:1     Avg QP:18.97  size: 13250
    [29] => [libx264 @ 0x3283080] frame P:2     Avg QP:18.68  size: 14368
    [30] => [libx264 @ 0x3283080] mb I  I16..4:  0.8% 81.4% 17.8%
    [31] => [libx264 @ 0x3283080] mb P  I16..4:  0.0% 84.8% 15.2%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
    [32] => [libx264 @ 0x3283080] 8x8 transform intra:83.7%
    [33] => [libx264 @ 0x3283080] coded y,uvDC,uvAC intra: 96.4% 99.2% 97.6%
    [34] => [libx264 @ 0x3283080] i16 v,h,dc,p:  0%  0% 100%  0%
    [35] => [libx264 @ 0x3283080] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 18% 13%  5%  8% 11%  8% 10%  7%
    [36] => [libx264 @ 0x3283080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 14%  9%  7%  9% 13%  8%  7%  7%
    [37] => [libx264 @ 0x3283080] i8c dc,h,v,p: 45% 17% 26% 12%
    [38] => [libx264 @ 0x3283080] Weighted P-Frames: Y:0.0% UV:0.0%
    [39] => [libx264 @ 0x3283080] kb/s:7.46

    )