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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".
    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 (...)

  • 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 (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (9822)

  • Why ffmpeg convert only the first frame of my animated gif ? [duplicate]

    23 novembre 2016, par Cyriltra

    This question already has an answer here :

    My animated gif is around 37mo and last for around 10sec. I use the following command on debian to convert it to .mp4 :

    avconv -i test2_37m2.gif -pix_fmt yuv420p -vf \"scale=trunc(iw/2)*2:trunc(ih/2)*2\" test2_37m2_mp4.mp4 2>&1

    The result is a 14kb .mp4 which is just a static frame (the first one) of the gif. Why ?

    here is the output log of ffmpeg / avconv

    avconv version 0.8.18-6:0.8.18-0+deb7u1, Copyright (c) 2000-2014 the Libav developers
    
built on Oct 4 2016 17:59:06 with gcc 4.7.2
    
Input #0, image2, from '/var/www/clients/client1/web1/web/test/gif/test2_37m2.gif':
    
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
Stream #0.0: Video: gif, pal8, 640x360, 25 tbr, 25 tbn, 25 tbc
    
Incompatible pixel format 'pal8' for codec 'libx264', auto-selecting format 'yuv420p'
    
[buffer @ 0x1a4a820] w:640 h:360 pixfmt:pal8
    
[avsink @ 0x1a4aac0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
    
[scale @ 0x1a4ae20] w:640 h:360 fmt:pal8 -> w:640 h:360 fmt:yuv420p flags:0x4
    
[libx264 @ 0x1a4a060] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x1a4a060] profile Main, level 3.0
    
[libx264 @ 0x1a4a060] 264 - core 123 r2189 35cf912 - 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=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=0 open_gop=1 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=1.25 aq=1:1.00
    
Output #0, mp4, to '/var/www/clients/client1/web1/web/test/gif/test2_37m2_mp4.mp4':
    
Metadata:
    
encoder : Lavf53.21.1
    
Stream #0.0: Video: libx264, yuv420p, 640x360, q=-1--1, 25 tbn, 25 tbc
    
Stream mapping:
    
Stream #0:0 -> #0:0 (gif -> libx264)
    
Press ctrl-c to stop encoding
    
frame= 1 fps= 0 q=28.0 Lsize= 13kB time=10000000000.00 bitrate= 0.0kbits/s
    
video:12kB audio:0kB global headers:0kB muxing overhead 6.292888%
    
[libx264 @ 0x1a4a060] frame I:1 Avg QP:27.23 size: 12119
    
[libx264 @ 0x1a4a060] mb I I16..4: 49.2% 0.0% 50.8%
    
[libx264 @ 0x1a4a060] coded y,uvDC,uvAC intra: 68.7% 45.8% 3.4%
    
[libx264 @ 0x1a4a060] i16 v,h,dc,p: 22% 25% 22% 31%
    
[libx264 @ 0x1a4a060] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 28% 21% 4% 5% 4% 9% 3% 7%
    
[libx264 @ 0x1a4a060] i8c dc,h,v,p: 57% 29% 13% 1%
    
[libx264 @ 0x1a4a060] kb/s:2423.80

    Thank you

  • ffmpeg "Option preset not found."

    2 février 2015, par PiTheNumber

    I am trying to convert a .mpg to .flv with ffmpeg. On other servers I got it working but here with the ffmpeg clone (avconv) it just does not do it.

    Originally I was working with libfaac and preset fastfirstpass but thats not available in this build so I switched to the experimental acc and preset libx264-fast_firstpass :

    $ /usr/bin/ffmpeg -i /data/upload/videos/original/150128_Test_731_9d5b83.mpg
    
  -strict experimental -acodec aac -ab 128k -ar 44100 -vcodec libx264 -pass 1 
    
  -pre libx264-fast_firstpass -b 512k -s 360x204 
    
  -f flv /data/upload/videos/encoded/150129_Test_731_54f06a.flv
    

    
avconv version 9.16-6:9.16-0ubuntu0.14.04.1, Copyright (c) 2000-2014 the Libav developers
    
  built on Aug 10 2014 18:16:02 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
    
[mpeg @ 0xc87de0] max_analyze_duration reached
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, mpeg, from '/data/upload/videos/original/150128_Test_731_9d5b83.mpg':
    
  Duration: 00:01:00.12, start: 0.989978, bitrate: 4814 kb/s
    
    Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x406 [PAR 406:405 DAR 16:9], 104857 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
    
    Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16p, 224 kb/s
    
[libx264 @ 0xc8b4c0] using SAR=136/135
    
[libx264 @ 0xc8b4c0] MB rate (26910000) > level limit (2073600)
    
[libx264 @ 0xc8b4c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    
[libx264 @ 0xc8b4c0] profile Main, level 5.2
    
[libx264 @ 0xc8b4c0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 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=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=abr mbtree=1 bitrate=512 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.25 aq=1:1.00
    
Option preset not found.

    What does the error in the last line mean ?

    I already made sure the preset libx264-fast_firstpass.avpreset exists in /usr/share/avconv/ and if I change it to invalid ffmpeg complains with Preset invalid specified for stream 0:0, but could not be opened., so the preset is correct.

    Google does provide two results for this error. This chatlog and it’s pastebin about live streaming with the solution to add -f flv and some russian page. Nothing helped.

    Any advice ?

  • Can't play rtp stream from ffmpeg/avconv, no data received

    6 mars 2014, par Foo Barazz

    I started avserver on my Raspberry Pi, webcam attached I read from /dev/video0 with

    pi@raspberrypi $ avconv -f video4linux2 -i /dev/video0 -vcodec mpeg2video -r 25 - pix_fmt yuv420p -me_method epzs -b 2600k -bt 256k -f rtp rtp://192.168.0.124:8090
    

    
avconv version 0.8.6-6:0.8.6-1+rpi1, Copyright (c) 2000-2013 the Libav developers
    
  built on Mar 31 2013 13:58:10 with gcc 4.6.3
    
[video4linux2 @ 0x17c1720] Estimating duration from bitrate, this may be inaccurate
    
Input #0, video4linux2, from '/dev/video0':
    
  Duration: N/A, start: 615.594215, bitrate: 36864 kb/s
    
    Stream #0.0: Video: rawvideo, yuyv422, 320x240, 36864 kb/s, 30 tbr, 1000k tbn, 30 tbc
    
[buffer @ 0x17c16e0] w:320 h:240 pixfmt:yuyv422
    
[avsink @ 0x17c2f00] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
    
[scale @ 0x17c34c0] w:320 h:240 fmt:yuyv422 -> w:320 h:240 fmt:yuv420p flags:0x4
    
Output #0, rtp, to 'rtp://192.168.0.124:8090':
    
  Metadata:
    
    encoder         : Lavf53.21.1
    
    Stream #0.0: Video: mpeg2video, yuv420p, 320x240, q=2-31, 2600 kb/s, 90k tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo -> mpeg2video)
    
SDP:
    
v=0
    
o=- 0 0 IN IP4 127.0.0.1
    
s=No Name
    
c=IN IP4 192.168.0.124
    
t=0 0
    
a=tool:libavformat 53.21.1
    
m=video 8090 RTP/AVP 32
    
b=AS:2600
    

    
Press ctrl-c to stop encoding
    
frame=  576 fps= 25 q=2.0 size=    2133kB time=23.00 bitrate= 759.8kbits/s dup=390 drop=0    
    
frame=  590 fps= 25 q=2.0 size=    2191kB time=23.56 bitrate= 762.0kbits/s dup=400 drop=0    
    
frame= 1320 fps= 25 q=2.0 size=    4932kB time=52.76 bitrate= 765.8kbits/s dup=908 drop=0
    
...

    Seems to work fine, it reads data from the webcam.

    Now I'm trying to simply play with ffplay from my Mac with

    $ ffplay rtp://192.168.0.124:8090
    
ffplay version 1.2.4 Copyright (c) 2003-2013 the FFmpeg developers
    
  built on Mar  1 2014 15:18:21 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
    
  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
    
    nan A-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
    
    nan A-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
    
    nan A-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0 
    
    ...

    The video doesn't open and it seems to not reading any data from the Raspberry Pi.

    I use the default configuration for avserver.
    The webcam is definitely working as I managed to just write out images with avconv from it.

    What did I miss ?

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