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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

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  • x86inc : speed up compilation with yasm

    16 janvier 2014, par Loren Merritt
    x86inc : speed up compilation with yasm

    Work around yasm’s inefficiency with handling large numbers of variables
    
in the global scope.
    • [DH] common/x86/x86inc.asm

  • Speed up start of a stream recording with ffmpeg

    15 janvier 2014, par neutron

    I try to record a video stream (from the web or a local webcam stream) and save it to a .mp4 / .flv file. I use FFmpeg with the version"N-59696-gc0a33c4".

    The problem isn't the recording of the stream, it is, how log it tooks to start the recording.

    This are the parameters i used to capture the stream (the stream is some random stream I found on the web) :

    ffmpeg.exe -i mmsh://live.camstreams.com/cscamscape?MSWMExt=.asf -r 25 -t 60 C:\temp\video.mp4

    And leads to this output :

    ffmpeg.exe -i mmsh://live.camstreams.com/cscams
    
cape?MSWMExt=.asf -r 25 -t 60 C:\temp\video.mp4
    
ffmpeg version N-59696-gc0a33c4 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Jan  8 2014 22:01:50 with gcc 4.8.2 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
    
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
    
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 62.100 / 52. 62.100
    
  libavcodec     55. 47.100 / 55. 47.100
    
  libavformat    55. 22.102 / 55. 22.102
    
  libavdevice    55.  5.102 / 55.  5.102
    
  libavfilter     4.  0.103 /  4.  0.103
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
[wmv3 @ 0275db40] Extra data: 8 bits left, value: 0
    
Input #0, asf, from 'mmsh://live.camstreams.com/cscamscape?MSWMExt=.asf':
    
  Metadata:
    
    title           : Live Fish Cam
    
    WMFSDKNeeded    : 0.0.0.0000
    
    DeviceConformanceTemplate: SP
    
    WMFSDKVersion   : 11.0.5721.5275
    
    IsVBR           : 0
    
  Duration: N/A, start: 3887858.274000, bitrate: 512 kb/s
    
    Stream #0:0(eng): Video: wmv3 (Simple) (WMV3 / 0x33564D57), yuv420p, 640x360
    
, 512 kb/s, 62.50 tbr, 1k tbn, 1k tbc
    
[libx264 @ 0275e400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0275e400] profile High, level 3.0
    
[libx264 @ 0275e400] 264 - core 140 r2377 1ca7bb9 - H.264/MPEG-4 AVC codec - Cop
    
yleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb
    
lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
    
e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro
    
ma_qp_offset=-2 threads=12 lookahead_threads=2 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 scene
    
cut=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
    
[wmv3 @ 0275db40] Extra data: 8 bits left, value: 0
    
Output #0, mp4, to 'C:\temp\video.mp4':
    
  Metadata:
    
    title           : Live Fish Cam
    
    WMFSDKNeeded    : 0.0.0.0000
    
    DeviceConformanceTemplate: SP
    
    WMFSDKVersion   : 11.0.5721.5275
    
    IsVBR           : 0
    
    encoder         : Lavf55.22.102
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 6
    
40x360, q=-1--1, 12800 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (wmv3 -> libx264)
    
Press [q] to stop, [?] for help
    
frame=  148 fps=0.0 q=28.0 size=     228kB time=00:00:03.60 bitrate= 518.3kbits/
    
frame=  151 fps=117 q=28.0 size=     236kB time=00:00:03.72 bitrate= 519.2kbits/
    
frame=  178 fps= 91 q=28.0 size=     298kB time=00:00:04.80 bitrate= 508.3kbits/
    
frame=  204 fps= 64 q=28.0 size=     347kB time=00:00:05.84 bitrate= 487.4kbits/
    
... 
    
... And so on ...

    The problem now is, that it takes around 6-10 seconds until the recording starts after I entered the command.

    Is there a way to speed up this process ?

  • x86inc : Speed up assembling with Yasm

    19 janvier 2014, par Loren Merritt
    x86inc : Speed up assembling with Yasm

    Work around Yasm’s inefficiency with handling large numbers of variables
    
in the global scope.
    

    Signed-off-by : Diego Biurrun <diego@biurrun.de>
    • [DH] libavutil/x86/x86inc.asm

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