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Autres articles (91)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Le plugin : Gestion de la mutualisation

    2 mars 2010, par

    Le plugin de Gestion de mutualisation permet de gérer les différents canaux de mediaspip depuis un site maître. Il a pour but de fournir une solution pure SPIP afin de remplacer cette ancienne solution.
    Installation basique
    On installe les fichiers de SPIP sur le serveur.
    On ajoute ensuite le plugin "mutualisation" à la racine du site comme décrit ici.
    On customise le fichier mes_options.php central comme on le souhaite. Voilà pour l’exemple celui de la plateforme mediaspip.net :
    < ?php (...)

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

Sur d’autres sites (14256)

  • Andriod streaming screen [closed]

    9 avril 2013, par blganesh

    Im able to share screen via ffmpeg
    ./ffmpeg -f fbdev -r 24 -i /dev/graphics/fb0 http://localhost:8090/feed1.ffm

    But the output live stream is very slow.
    Following is the conf file which I'm using.

    `Port 8090
    
RTSPPort 7654
    
BindAddress 0.0.0.0
    
RTSPBindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 1000
    
CustomLog -
    
NoDaemon
    
<feed>
    
File /data/live1.ffm
    
FileMaxSize 40M
    
NoAudio
    
ACL allow 127.0.0.1
    
</feed>
    
<stream>
    
Feed live1.ffm
    
Format mpeg2video
    
NoAudio
    
VideoBitRate 1024
    
VideoFrameRate 1
    
VideoBufferSize 10000
    
VideoSize 480x800
    
VideoQMin 1
    
VideoQMax 15
    
</stream>`

    Kindly let me know how should I change my conf file to get a fast video output.

  • Transcoding a video from GoToMeeting WMV to MP4 using FFMPEG on Windows locks up dos window [migrated]

    22 août 2011, par Ryan

    I've been tasked with converting some pre-recorded GoToMeeting videos from wmv to mp4 format. I've got the GoToMeeting transcoder app available from Citrix (g2mtranscoder.exe) that takes the source wmv and makes it so that ffmpeg can work with the wmv. The problem I have is when I then try and take that wmv and transcode it to mp4.

    I'm using the latest pre-compiled static version of ffmpeg for Windows from here http://ffmpeg.zeranoe.com/builds/

    Here is the command line I'm using to begin the conversion :

    "C:\ffmpeg\ffmpeg.exe" -i "999_1366_768_g2m_transcoded.wmv" -f "mp4" -b "1000k" -r "30" -ab "128k" -ar "22050" -s "1366x768" -strict "experimental" -y "999.mp4"

    Here is FFMPEG's output. The last line is where the dos window seems to stop executing/locks up (when I say lock up I mean just the dos window is locked up, not the entire machine) :

    ffmpeg version N-31932-g41bf67d, Copyright (c) 2000-2011 the FFmpeg developers built on Aug 16 2011 18:54:12 with gcc 4.6.1
    
configuration: --enable-gpl --enable-version3 --enable-memalign-hack --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil    51. 12. 0 / 51. 12. 0
    
  libavcodec   53. 10. 0 / 53. 10. 0
    
  libavformat  53.  7. 0 / 53.  7. 0
    
  libavdevice  53.  3. 0 / 53.  3. 0
    
  libavfilter   2. 31. 1 /  2. 31. 1
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
[asf @ 01BBB600] max_analyze_duration 5000000 reached at 5194000
    

    
Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 59.92 (719/12)
    
Input #0, asf, from &#39;D:\Inetpub\g2m\Transcoding\999_1366_768_g2m_transcoded.wmv&#39;:
    
  Metadata:
    
    WMFSDKVersion   : 10.00.00.4007
    
    WMFSDKNeeded    : 0.0.0.0000
    
    IsVBR           : 1
    
    VBR Peak        : 4403
    
    Buffer Average  : 1470
    
    WM/ToolVersion  : 4.8 Build 723
    
    WM/ToolName     : GoToMeeting
    
    BitRateFrom the writer: 1553
    
    Audio samples   : 6221
    
    Video samples   : 3455
    
    recording time  : Mon, 22 Aug 2011 11:48:42 Eastern Daylight Time
    
  Duration: 00:38:30.71, start: 0.000000, bitrate: 160 kb/s
    
    Stream #0.0: Audio: wmav2, 44100 Hz, 1 channels, s16, 48 kb/s
    
    Stream #0.1: Video: wmv3 (Main), yuv420p, 1366x768, 2154 kb/s, 59.92 tbr, 1k tbn, 1k tbc
    
[buffer @ 01BBC120] w:1366 h:768 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
    
Output #0, mp4, to &#39;\\nas4\FMS_APPLICATIONS\SVC\sk12\webinars\999.mp4&#39;:
    
  Metadata:
    
    WMFSDKVersion   : 10.00.00.4007
    
    WMFSDKNeeded    : 0.0.0.0000
    
    IsVBR           : 1
    
    VBR Peak        : 4403
    
    Buffer Average  : 1470
    
    WM/ToolVersion  : 4.8 Build 723
    
    WM/ToolName     : GoToMeeting
    
    BitRateFrom the writer: 1553
    
    Audio samples   : 6221
    
    Video samples   : 3455
    
    recording time  : Mon, 22 Aug 2011 11:48:42 Eastern Daylight Time
    
    encoder         : Lavf53.7.0
    
    Stream #0.0: Video: mpeg4, yuv420p, 1366x768, q=2-31, 1000 kb/s, 30 tbn, 30 tbc
    
    Stream #0.1: Audio: aac, 22050 Hz, 1 channels, s16, 128 kb/s
    
Stream mapping:
    
  Stream #0.1 -> #0.0
    
  Stream #0.0 -> #0.1
    
Press [q] to stop, [?] for help
    
frame=  149 fps= 63 q=23.5 size=    1103kB time=00:00:04.96 bitrate=1818.6kbits/s dup=144 drop=0

    Does anyone have any idea why it's locking up the dos window and essentially failing to convert the file to mp4 ? I had a friend test it on a linux box and he was able to convert the video just fine.

    Thanks

  • Using FFMPEG to reliably convert videos to mp4 for iphone/ipod and flash players

    23 avril 2016, par Jake Stevenson

    I need to convert videos for use in both a flash player and the iphone/ipod touch. I’m using the following batch script with ffmpeg :

    @echo off
    
ffmpeg.exe -i %1 -s qvga -acodec libfaac -ar 22050 -ab 128k -vcodec libx264 -threads 0 -f ipod %2

    This always outputs an mp4 file, and I can always play it on my PC. The videos also seem to play fine on my iphone 3GS. But with some input files it won’t work for older iphone versions (3G and iPod touch).

    Here’s the ffmpeg output from one such file :

    D:\ffmpeg>encode.bat d:\temp\recording.flv d:\temp\out.m4v
    
FFmpeg version SVN-r18709, Copyright (c) 2000-2009 Fabrice Bellard, et al.
    
  configuration: --enable-memalign-hack --prefix=/mingw --cross-prefix=i686-ming
    
w32- --cc=ccache-i686-mingw32-gcc --target-os=mingw32 --arch=i686 --cpu=i686 --e
    
nable-avisynth --enable-gpl --enable-zlib --enable-bzlib --enable-libgsm --enabl
    
e-libfaac --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheo
    
ra --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable-libxvid -
    
-enable-libschroedinger --enable-libx264
    
  libavutil     50. 3. 0 / 50. 3. 0
    
  libavcodec    52.27. 0 / 52.27. 0
    
  libavformat   52.32. 0 / 52.32. 0
    
  libavdevice   52. 2. 0 / 52. 2. 0
    
  libswscale     0. 7. 1 /  0. 7. 1
    
  built on Apr 28 2009 04:04:42, gcc: 4.2.4
    
[flv @ 0x187d650]skipping flv packet: type 18, size 164, flags 0
    
Input #0, flv, from 'd:\temp\recording.flv':
    
  Duration: 00:00:07.17, start: 0.001000, bitrate: N/A
    
    Stream #0.0: Video: flv, yuv420p, 320x240, 1k tbr, 1k tbn, 1k tbc
    
    Stream #0.1: Audio: nellymoser, 44100 Hz, mono, s16
    
[libx264 @ 0x13518b0]using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE
    
4.2
    
[libx264 @ 0x13518b0]profile Baseline, level 4.2
    
Output #0, ipod, to 'd:\temp\out.m4v':
    
    Stream #0.0: Video: libx264, yuv420p, 320x240, q=2-31, 200 kb/s, 1k tbn, 1k
    
tbc
    
    Stream #0.1: Audio: libfaac, 22050 Hz, mono, s16, 128 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
Press [q] to stop encoding
    
frame=   90 fps=  0 q=-1.0 Lsize=     128kB time=6.87 bitrate= 152.4kbits/s
    
video:92kB audio:32kB global headers:1kB muxing overhead 2.620892%
    
[libx264 @ 0x13518b0]slice I:8     Avg QP:29.62  size:  7047
    
[libx264 @ 0x13518b0]slice P:82    Avg QP:30.83  size:   467
    
[libx264 @ 0x13518b0]mb I  I16..4: 17.9%  0.0% 82.1%
    
[libx264 @ 0x13518b0]mb P  I16..4:  0.6%  0.0%  0.0%  P16..4: 23.1%  0.0%  0.0%
    
 0.0%  0.0%    skip:76.3%
    
[libx264 @ 0x13518b0]final ratefactor: 57.50
    
[libx264 @ 0x13518b0]SSIM Mean Y:0.9544735
    
[libx264 @ 0x13518b0]kb/s:8412.6

    My suspicion is that it has something to do with the audio encoding. If so, does anyone know how to force it to reencode the audio to the proper format ?

    Any other ideas ?

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