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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • (Dés)Activation de fonctionnalités (plugins)

    18 février 2011, par

    Pour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
    SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
    Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
    MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (8561)

  • What causes Firefox to refuse playing one specific MP4 that plays well on other browsers, resolution being the only difference ?

    3 décembre 2014, par Faro

    I’m a developer for a PHP powered website that allows the upload of videos which get converted to MP4 using ffmpeg. This setup worked pretty well so far, however today I came across a report of a user that couldn’t play one of the files in Firefox.

    I was unable to replicate the issue on my own machine at first, but using a fresh install of Windows 7 I actually got the same issue : The file will not play in Firefox, but works fine in Chrome. If called up directly, Firefox will say "Video can’t be played because the file is corrupt".
    When downloaded, Windows will also not create a thumbnail of the video for the file and WMP will only play the audio part.

    On my own machine the file works perfectly in WMP which made me wonder if it could be a codec issue (I do have the K-Lite Codec Pack installed), however I’ve compared the file to a working one and the only difference is the resolution, filesize and the format profile which is "High@L3.1" for a working file with a 720p resolution and "High@L4.0" for the non-working one (which is 1600x1200).

    I then read through the Wikipedia article on H.264/MPEG-4 AVC and began to wonder if the level might be the issue, and the tool I used (XMedia Recode) actually did not allow me to set a height bigger than 1080 on Level 4, however when I set the level to 5 and encoded the file again, it still wouldn’t play.

    I did find a note on the MDN page of supported formats which reads :

    Firefox/Firefox for Android/Firefox OS supports the format in some cases, but only when a third-party decoder is available, and the device hardware can handle the profile used to encode the MP4.

    I’m assuming that is why the codec pack would allow Firefox to play even the ’broken’ file on my machine, I still don’t understand though why Firefox does play some files but not this one, especially when Chrome on the same machine plays all of them.

    The line in PHP that starts the conversion is as follows :

    exec("/usr/local/bin/ffmpeg '-i' '" . $file_in . "' '-qscale' '4' '-y' '-threads' '1' '-acodec' 'libvo_aacenc' '-vcodec' 'h264' '" . $file_out . "' 2>&1", $buffer, $success);

    This should produce correct files, and this is indeed the first time a file has issues.

    MediaInfo provides this data for the file stream :

    Video
    
ID                                       : 1
    
Format                                   : AVC
    
Format/Info                              : Advanced Video Codec
    
Format profile                           : High@L4.0
    
Format settings, CABAC                   : Yes
    
Format settings, ReFrames                : 4 frames
    
Codec ID                                 : avc1
    
Codec ID/Info                            : Advanced Video Coding
    
Duration                                 : 12mn 26s
    
Bit rate                                 : 77.7 Kbps
    
Width                                    : 1 600 pixels
    
Height                                   : 1 200 pixels
    
Display aspect ratio                     : 4:3
    
Frame rate mode                          : Constant
    
Frame rate                               : 30.000 fps
    
Color space                              : YUV
    
Chroma subsampling                       : 4:2:0
    
Bit depth                                : 8 bits
    
Scan type                                : Progressive
    
Bits/(Pixel*Frame)                       : 0.001
    
Stream size                              : 6.92 MiB (36%)
    
Writing library                          : x264 core 142 r14 956c8d8
    
Encoding settings                        : 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=1 / 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=25 / 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
    
Language                                 : English
    

    
Audio
    
ID                                       : 2
    
Format                                   : AAC
    
Format/Info                              : Advanced Audio Codec
    
Format profile                           : LC
    
Codec ID                                 : 40
    
Duration                                 : 12mn 26s
    
Duration_LastFrame                       : -10ms
    
Bit rate mode                            : Constant
    
Bit rate                                 : 128 Kbps
    
Channel(s)                               : 2 channels
    
Channel positions                        : Front: L R
    
Sampling rate                            : 44.1 KHz
    
Compression mode                         : Lossy
    
Stream size                              : 11.4 MiB (60%)
    
Language                                 : English

    I’ve uploaded a zip with 3 versions of the file, the untouched one, the converted one with the same settings the website would use, and another converted one with level 5.

    Maybe I’m missing something obvious, but I couldn’t find anything wrong with it, what do I need to change in order to produce a file that will work natively in Firefox ?

    Also, this is my first question on SO, so if you see anything that I can improve, please let me know :-)

    Edit : This is the output of calling ffmpeg (with the faststart option)

    /usr/local/bin/ffmpeg '-i' '49cf594e91d0dac376aa0b2b96972ded.mp4' '-movflags' '+faststart' '-qscale' '4' '-y' '-threads' '1' '-acodec' 'libvo_aacenc' '-vcodec' 'h264' 'test.mp4'
    

    
ffmpeg version 1.2.5-   http://johnvansickle.com/ffmpeg/    Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Jan 22 2014 20:28:02 with gcc 4.8 (Debian 4.8.2-14)
    
  configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --disable-ffserver
    
  libavutil      52. 18.100 / 52. 18.100
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.104 / 54. 63.104
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 42.103 /  3. 42.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '49cf594e91d0dac376aa0b2b96972ded.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf54.63.104
    
  Duration: 00:12:26.37, start: 0.036281, bitrate: 214 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1600x1200 [SAR 1:1 DAR 4:3], 77 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
Please use -q:a or -q:v, -qscale is ambiguous
    
[libx264 @ 0x2802ac0] using SAR=1/1
    
[libx264 @ 0x2802ac0] using cpu capabilities: MMX2 SSE2Fast LZCNT
    
[libx264 @ 0x2802ac0] profile High, level 4.0
    
[libx264 @ 0x2802ac0] 264 - core 142 r14 956c8d8 - 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=1 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=25 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 'test.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf54.63.104
    
    Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1600x1200 [SAR 1:1 DAR 4:3], q=-1--1, 15360 tbn, 30 tbc
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
    
Press [q] to stop, [?] for help
    
Starting second pass: moving header on top of the file30.77 bitrate= 202.5kbits/s dup=1 drop=0
    
frame=15331 fps= 13 q=29.0 Lsize=   13201kB time=00:08:31.03 bitrate= 211.6kbits/s dup=1 drop=0
    
video:4673kB audio:7986kB subtitle:0 global headers:0kB muxing overhead 4.286767%
    
[libx264 @ 0x2802ac0] frame I:63    Avg QP:12.37  size: 39759
    
[libx264 @ 0x2802ac0] frame P:3905  Avg QP:20.36  size:   313
    
[libx264 @ 0x2802ac0] frame B:11363 Avg QP:33.67  size:    93
    
[libx264 @ 0x2802ac0] consecutive B-frames:  1.1%  0.1%  0.2% 98.6%
    
[libx264 @ 0x2802ac0] mb I  I16..4: 48.0% 41.5% 10.5%
    
[libx264 @ 0x2802ac0] mb P  I16..4:  0.1%  0.2%  0.0%  P16..4:  0.5%  0.0%  0.0%  0.0%  0.0%    skip:99.1%
    
[libx264 @ 0x2802ac0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.3%  0.0%  0.0%  direct: 0.0%  skip:99.7%  L0:50.2% L1:48.9% BI: 0.8%
    
[libx264 @ 0x2802ac0] 8x8 transform intra:42.4% inter:36.9%
    
[libx264 @ 0x2802ac0] coded y,uvDC,uvAC intra: 6.9% 13.4% 9.4% inter: 0.0% 0.1% 0.0%
    
[libx264 @ 0x2802ac0] i16 v,h,dc,p: 82% 17%  1%  0%
    
[libx264 @ 0x2802ac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 49%  0%  0%  0%  0%  0%  0%
    
[libx264 @ 0x2802ac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 20% 18%  3%  4%  4%  4%  4%  3%
    
[libx264 @ 0x2802ac0] i8c dc,h,v,p: 80% 12%  7%  1%
    
[libx264 @ 0x2802ac0] Weighted P-Frames: Y:0.3% UV:0.3%
    
[libx264 @ 0x2802ac0] ref P L0: 74.7%  3.8% 10.6% 10.9%  0.0%
    
[libx264 @ 0x2802ac0] ref B L0: 70.3% 28.9%  0.8%
    
[libx264 @ 0x2802ac0] ref B L1: 97.9%  2.1%
    
[libx264 @ 0x2802ac0] kb/s:74.90

  • Replace lena.pnm

    27 novembre 2014, par Reinhard Tartler
    Replace lena.pnm

    The new reference.pnm is a freely licensed replacement. The photo has
    
been taken by Reinhard Tartler on August 28 2014, and is licensed under
    
the expat license as stated at http://www.jclark.com/xml/copying.txt
    • [DBH] tests/Makefile
    • [DBH] tests/lena.pnm
    • [DBH] tests/ref/seek/vsynth2-asv1
    • [DBH] tests/ref/seek/vsynth2-asv2
    • [DBH] tests/ref/seek/vsynth2-ffv1
    • [DBH] tests/ref/seek/vsynth2-flashsv
    • [DBH] tests/ref/seek/vsynth2-flv
    • [DBH] tests/ref/seek/vsynth2-h261
    • [DBH] tests/ref/seek/vsynth2-h263
    • [DBH] tests/ref/seek/vsynth2-h263p
    • [DBH] tests/ref/seek/vsynth2-huffyuv
    • [DBH] tests/ref/seek/vsynth2-jpegls
    • [DBH] tests/ref/seek/vsynth2-ljpeg
    • [DBH] tests/ref/seek/vsynth2-mjpeg
    • [DBH] tests/ref/seek/vsynth2-mpeg1
    • [DBH] tests/ref/seek/vsynth2-mpeg1b
    • [DBH] tests/ref/seek/vsynth2-mpeg2-422
    • [DBH] tests/ref/seek/vsynth2-mpeg2-idct-int
    • [DBH] tests/ref/seek/vsynth2-mpeg2-ilace
    • [DBH] tests/ref/seek/vsynth2-mpeg2-ivlc-qprd
    • [DBH] tests/ref/seek/vsynth2-mpeg2-thread
    • [DBH] tests/ref/seek/vsynth2-mpeg2-thread-ivlc
    • [DBH] tests/ref/seek/vsynth2-mpeg4
    • [DBH] tests/ref/seek/vsynth2-mpeg4-adap
    • [DBH] tests/ref/seek/vsynth2-mpeg4-adv
    • [DBH] tests/ref/seek/vsynth2-mpeg4-error
    • [DBH] tests/ref/seek/vsynth2-mpeg4-nr
    • [DBH] tests/ref/seek/vsynth2-mpeg4-qpel
    • [DBH] tests/ref/seek/vsynth2-mpeg4-qprd
    • [DBH] tests/ref/seek/vsynth2-mpeg4-rc
    • [DBH] tests/ref/seek/vsynth2-mpeg4-thread
    • [DBH] tests/ref/seek/vsynth2-msmpeg4
    • [DBH] tests/ref/seek/vsynth2-msmpeg4v2
    • [DBH] tests/ref/seek/vsynth2-roqvideo
    • [DBH] tests/ref/seek/vsynth2-rv10
    • [DBH] tests/ref/seek/vsynth2-rv20
    • [DBH] tests/ref/seek/vsynth2-svq1
    • [DBH] tests/ref/seek/vsynth2-wmv1
    • [DBH] tests/ref/seek/vsynth2-wmv2
    • [DBH] tests/ref/vsynth/vsynth2-asv1
    • [DBH] tests/ref/vsynth/vsynth2-asv2
    • [DBH] tests/ref/vsynth/vsynth2-cljr
    • [DBH] tests/ref/vsynth/vsynth2-dnxhd-1080i
    • [DBH] tests/ref/vsynth/vsynth2-dnxhd-720p
    • [DBH] tests/ref/vsynth/vsynth2-dnxhd-720p-10bit
    • [DBH] tests/ref/vsynth/vsynth2-dnxhd-720p-rd
    • [DBH] tests/ref/vsynth/vsynth2-dv
    • [DBH] tests/ref/vsynth/vsynth2-dv-411
    • [DBH] tests/ref/vsynth/vsynth2-dv-50
    • [DBH] tests/ref/vsynth/vsynth2-ffv1
    • [DBH] tests/ref/vsynth/vsynth2-ffvhuff
    • [DBH] tests/ref/vsynth/vsynth2-flashsv
    • [DBH] tests/ref/vsynth/vsynth2-flv
    • [DBH] tests/ref/vsynth/vsynth2-h261
    • [DBH] tests/ref/vsynth/vsynth2-h263
    • [DBH] tests/ref/vsynth/vsynth2-h263-obmc
    • [DBH] tests/ref/vsynth/vsynth2-h263p
    • [DBH] tests/ref/vsynth/vsynth2-huffyuv
    • [DBH] tests/ref/vsynth/vsynth2-jpegls
    • [DBH] tests/ref/vsynth/vsynth2-ljpeg
    • [DBH] tests/ref/vsynth/vsynth2-mjpeg
    • [DBH] tests/ref/vsynth/vsynth2-mpeg1
    • [DBH] tests/ref/vsynth/vsynth2-mpeg1b
    • [DBH] tests/ref/vsynth/vsynth2-mpeg2
    • [DBH] tests/ref/vsynth/vsynth2-mpeg2-422
    • [DBH] tests/ref/vsynth/vsynth2-mpeg2-idct-int
    • [DBH] tests/ref/vsynth/vsynth2-mpeg2-ilace
    • [DBH] tests/ref/vsynth/vsynth2-mpeg2-ivlc-qprd
    • [DBH] tests/ref/vsynth/vsynth2-mpeg2-thread
    • [DBH] tests/ref/vsynth/vsynth2-mpeg2-thread-ivlc
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-adap
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-adv
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-error
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-nr
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-qpel
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-qprd
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-rc
    • [DBH] tests/ref/vsynth/vsynth2-mpeg4-thread
    • [DBH] tests/ref/vsynth/vsynth2-msmpeg4
    • [DBH] tests/ref/vsynth/vsynth2-msmpeg4v2
    • [DBH] tests/ref/vsynth/vsynth2-prores
    • [DBH] tests/ref/vsynth/vsynth2-qtrle
    • [DBH] tests/ref/vsynth/vsynth2-rgb
    • [DBH] tests/ref/vsynth/vsynth2-roqvideo
    • [DBH] tests/ref/vsynth/vsynth2-rv10
    • [DBH] tests/ref/vsynth/vsynth2-rv20
    • [DBH] tests/ref/vsynth/vsynth2-svq1
    • [DBH] tests/ref/vsynth/vsynth2-v210
    • [DBH] tests/ref/vsynth/vsynth2-wmv1
    • [DBH] tests/ref/vsynth/vsynth2-wmv2
    • [DBH] tests/ref/vsynth/vsynth2-yuv
    • [DBH] tests/reference.pnm

  • src/libFLAC/stream_decoder.c : Fix buffer read overflow.

    18 novembre 2014, par Erik de Castro Lopo
    src/libFLAC/stream_decoder.c : Fix buffer read overflow.

    This is CVE-2014-8962.
    

    Reported-by : Michele Spagnuolo,
    
             Google Security Team <mikispag@google.com>
    • [DH] src/libFLAC/stream_decoder.c

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