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    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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 (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (10523)

  • Progressive or Interlaced misinterpreted when transcoding to DNxHD mxf with ffmpeg

    19 avril 2015, par Olle

    Hi, don’t know if i am doing it wrong or is there a bug.

    Trying to transcode 1080i Video from Quicktime Animation interlaced upper field with a stereo audio to MXF, DNxHD with discreet mono audio channels and video interlaced.
    DNxHD = VC-3 op1a 120M.

    Everything works as a charm except for the end result is being tagged as Progressive ! I can see, when i look at the video, that it is interlaced and good looking, so everything is in order.

    But the MXF file is identifying it self as a Progressive video, so our asset management system treat it as a progressive file 1080p and so does the Avid Mediacomposers.

    I can’t se the problem with ffprobe but i can in MediaInfo v0.7.69
    Se below.

    Command that i run :

    ./ffmpeg -i OLLETEST_MANSZELM_ANIMATION.mov -timecode 10:00:00:00 -threads 16 -map 0:0 -map 0:1 -map 0:1 -map_channel 0.1.0:0.1 -map_channel 0.1.1:0.2 -vcodec dnxhd -b:v 120M -acodec pcm_s24le -ar 48000 -flags +ildct -y test.mxf

    The transcoded file run with media info reports this strange result.

    Scan type                                : Progressive
    Original scan type                       : Interlaced
    Original scan order                      : Top Field First

    seems as -flags +ildctdon’t affect Scan type :

    The output from ffmpeg :

    Olles-MacBook-Pro-2:NoBackUp olso$ ./ffmpeg -i OLLETEST_MANSZELM_ANIMATION.mov -timecode 00:10:00:00 -threads 16 -map 0:0 -map 0:1 -map 0:1 -map_channel 0.1.0:0.1 -map_channel 0.1.1:0.2 -vcodec dnxhd -b:v 120M -acodec pcm_s24le -ar 48000  -flags +ildct -y test.mxf
    ffmpeg version 2.6.2-tessus Copyright (c) 2000-2015 the FFmpeg developers
     built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
     configuration: --cc=/usr/bin/clang --prefix=/Users/helmutt/data/ext/ffmpeg/sw --as=yasm --extra-version=tessus --disable-shared --enable-static --disable-ffplay --enable-gpl --enable-pthreads --enable-postproc --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libx265 --enable-libxvid --enable-libspeex --enable-bzlib --enable-zlib --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxavs --enable-libsoxr --enable-libwavpack --enable-version3 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvpx --enable-libgsm --enable-libopus --enable-libmodplug --enable-fontconfig --enable-libfreetype --enable-libass --enable-libbluray --enable-filters --disable-indev=qtkit --disable-indev=x11grab_xcb --enable-runtime-cpudetect
     libavutil      54. 20.100 / 54. 20.100
     libavcodec     56. 26.100 / 56. 26.100
     libavformat    56. 25.101 / 56. 25.101
     libavdevice    56.  4.100 / 56.  4.100
     libavfilter     5. 11.102 /  5. 11.102
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  1.100 /  1.  1.100
     libpostproc    53.  3.100 / 53.  3.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'OLLETEST_MANSZELM_ANIMATION.mov':
     Metadata:
       major_brand     : qt  
       minor_version   : 537199360
       compatible_brands: qt  
       creation_time   : 2015-04-14 20:40:41
     Duration: 00:00:11.04, start: 0.000000, bitrate: 1141927 kb/s
       Stream #0:0(eng): Video: qtrle (rle  / 0x20656C72), rgb24, 1920x1080, 1140363 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
       Metadata:
         creation_time   : 2015-04-14 20:40:41
         handler_name    : Apple Alias Data Handler
         encoder         : Animation
         timecode        : 00:00:00:00
       Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
       Metadata:
         creation_time   : 2015-04-14 20:40:41
         handler_name    : Apple Alias Data Handler
         timecode        : 00:00:00:00
       Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
       Metadata:
         creation_time   : 2015-04-14 20:41:01
         handler_name    : Apple Alias Data Handler
         timecode        : 00:00:00:00
    -map_channel is forwarded to lavfi similarly to -af pan=0x4:c0=c0.
    [pan @ 0x7f9db1e02600] This syntax is deprecated. Use '|' to separate the list items.
    [pan @ 0x7f9db1e02600] Pure channel mapping detected: 0
    -map_channel is forwarded to lavfi similarly to -af pan=0x4:c0=c1.
    [pan @ 0x7f9db1d241e0] This syntax is deprecated. Use '|' to separate the list items.
    [pan @ 0x7f9db1d241e0] Pure channel mapping detected: 1
    Output #0, mxf, to 'test.mxf':
     Metadata:
       major_brand     : qt  
       minor_version   : 537199360
       compatible_brands: qt  
       timecode        : 00:10:00:00
       encoder         : Lavf56.25.101
       Stream #0:0(eng): Video: dnxhd, yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-1024, 120000 kb/s, 25 fps, 25 tbn, 25 tbc (default)
       Metadata:
         creation_time   : 2015-04-14 20:40:41
         handler_name    : Apple Alias Data Handler
         timecode        : 00:00:00:00
         encoder         : Lavc56.26.100 dnxhd
       Stream #0:1(eng): Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s (default)
       Metadata:
         creation_time   : 2015-04-14 20:40:41
         handler_name    : Apple Alias Data Handler
         timecode        : 00:00:00:00
         encoder         : Lavc56.26.100 pcm_s24le
       Stream #0:2(eng): Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s (default)
       Metadata:
         creation_time   : 2015-04-14 20:40:41
         handler_name    : Apple Alias Data Handler
         timecode        : 00:00:00:00
         encoder         : Lavc56.26.100 pcm_s24le
    Stream mapping:
     Stream #0:0 -> #0:0 (qtrle (native) -> dnxhd (native))
     Stream #0:1 -> #0:1 (pcm_s16le (native) -> pcm_s24le (native))
     Stream #0:1 -> #0:2 (pcm_s16le (native) -> pcm_s24le (native))
    Press [q] to stop, [?] for help
    [mxf @ 0x7f9db2806c00] -d10_channelcount requires MXF D-10 and will be ignored/s    
       Last message repeated 1 times
    frame=  276 fps= 26 q=1.0 Lsize=  166981kB time=00:00:11.20 bitrate=122134.7kbits/s    
    video:163392kB audio:3150kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.263624%

    Complete output from mediainfo.

    General
    Complete name                            : /NoBackUp/test.mxf
    Format                                   : MXF
    Format profile                           : OP-1a
    Format settings                          : Closed / Complete
    File size                                : 163 MiB
    Duration                                 : 11s 40ms
    Overall bit rate                         : 124 Mbps
    Encoded date                             : 0-00-00 00:00:00.000
    Writing application                      : FFmpeg OP1a Muxer 56.25.101
    Writing library                          : FFmpeg OP1a Muxer 56.25.101

    Video
    ID                                       : 2
    Format                                   : VC-3
    Format_Settings_Wrapping                 : Frame
    Codec ID                                 : 0D01030102110100-0401020271080000
    Duration                                 : 11s 40ms
    Bit rate mode                            : Constant
    Bit rate                                 : 121 Mbps
    Width                                    : 1 920 pixels
    Height                                   : 1 080 pixels
    Display aspect ratio                     : 16:9
    Frame rate                               : 25.000 fps
    Color space                              : YUV
    Chroma subsampling                       : 4:2:2
    Bit depth                                : 8 bits
    Scan type                                : Progressive
    Original scan type                       : Interlaced
    Original scan order                      : Top Field First
    Bits/(Pixel*Frame)                       : 2.339
    Stream size                              : 160 MiB (98%)

    Audio #1
    ID                                       : 3
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format_Settings_Wrapping                 : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 11s 40ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 Kbps
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 KHz
    Bit depth                                : 24 bits
    Stream size                              : 1.52 MiB (1%)

    Audio #2
    ID                                       : 4
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format_Settings_Wrapping                 : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 11s 40ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 Kbps
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 KHz
    Bit depth                                : 24 bits
    Stream size                              : 1.52 MiB (1%)

    Other #1
    ID                                       : 1
    Type                                     : Time code
    Format                                   : MXF TC
    Time code of first frame                 : 00:10:00:00
    Time code settings                       : Striped

    Other #2
    Type                                     : Time code
    Format                                   : SMPTE TC
    Muxing mode                              : SDTI
    Time code of first frame                 : 00:10:00:00
  • Death of A Micro Center

    21 septembre 2012, par Multimedia Mike — History

    The Micro Center computer store located in Santa Clara, CA, USA closed recently :



    I liked Micro Center. I have liked Micro Center ever since I first visited their Denver, CO location 10 years ago. I would sometimes drive an hour in each direction just to visit that shop. I was excited to see that they had a location in the Bay Area when I moved here a few years ago (despite the preponderance of Fry’s stores).

    Now this location is gone. I wonder how much of the “we couldn’t come to favorable terms on a lease” was true (vs. an excuse to close a retail store at a time when more business is moving online, particularly in the heart of Silicon Valley). But that’s not what I wanted to discuss. I came here to discuss…

    The Micro Center Window Logos

    The craziest part about shopping the Santa Clara Micro Center location was the logos they displayed on the window outside. Every time I saw it, it made me sentimental for a time when some of these logos were current, or when some of these companies were still in business. Some of the logos on their front window were for companies I’ve never heard of. It reminds me of the nearby 7-11 convenience stores when I was growing up– their walls were decorated with people sporting embarrassingly 1970s styles long after the 1970s had transpired.

    I thought I would record what those front window logos were and try to pinpoint when the store launched exactly (assuming the logos have been their since the initial opening and never changed).



    Click for larger image

    Here we have Lotus, Hewlett Packard/HP, Corel, Fuji, Power Macintosh, NEC, and Fujitsu. Lotus was purchased by IBM in 1995 and still seems to be maintained as a separate brand. The Power Macintosh was introduced as a brand in 1994. Corel’s logo has seen a few mutations over the years but I don’t know when this one fell out of favor.

    Fuji (vs. Fujitsu) appears to refer to Fujifilm, though this logo is also obsolete.



    Click for larger image

    Hayes– I specifically remember reading the Slashdot post accouncing that Hayes is dead (followed by many comments reminiscing about the Hayes command set). Here is the post, from early 1999.

    From Googling, it doesn’t appear IBM still has a presence in the consumer computing space (though they do have something pertaining to software for consumer products). Then there’s the good old rainbow Apple logo, something that went away in 1997. I suspect 1997 was also the last hurrah of the name ‘Macintosh’ (though I remember mistakenly referring to Apple computer products as Macintoshes well into the mid-2000s and inadvertently angering some Apple enthusiasts).



    Click for larger image

    As for the next segment, obviously, both Sony and Toshiba are still very much alive. Iomega was acquired by EMC in 2008 but is still maintained as a separate brand. USRobotics is still around and making — what else ? — 56K modems (and their current logo is slightly different than the one seen here).

    Targus seems to be a case maker (“Leading Provider of Cases, Bags and Accessories for Laptops and Tablets”). I wonder if that’s just their current business or if they had more areas long ago ? It seems strange that they would get brand billing like this.

    Finally, searching for information about Practical Peripherals only produces sites about how they’re long dead (like this history lesson). It’s unclear when they died.

    The interior of this store was also decorated with more technology company logos near the ceiling (I didn’t really register that fact until I had visited many times). Regrettably, I now won’t be able to see how up to date those logos were.

    Based on the data points above, it’s safe to conclude that the store opened between 1995 or 1996 (again, assuming the logos were placed at opening and never changed).

    Epilogue

    Here’s one more curious item still visible from the outside :



    “See the world’s fastest PC !” Featuring an Intel Core 2 Extreme ? That CPU dates back to 2007 and was succeeded by Nehalem in late 2008. So even that sign, which is presumably easier and cleaner to replace than the window logos, was absurdly out of date.

  • Using FFmpeg to join images with different timly distance

    28 septembre 2015, par magic_al

    I have a set of images from which I try to create a slide show. On this website I found the following command to do so :

    ffmpeg -framerate 1/5 -start_number 126 -i img%03d.png -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4

    I got it working fine. But in my case I need to have each images to be displayed a different period of time. How can I achieve this ?