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  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Sélection de projets utilisant MediaSPIP

    29 avril 2011, par

    Les exemples cités ci-dessous sont des éléments représentatifs d’usages spécifiques de MediaSPIP pour certains projets.
    Vous pensez avoir un site "remarquable" réalisé avec MediaSPIP ? Faites le nous savoir ici.
    Ferme MediaSPIP @ Infini
    L’Association Infini développe des activités d’accueil, de point d’accès internet, de formation, de conduite de projets innovants dans le domaine des Technologies de l’Information et de la Communication, et l’hébergement de sites. Elle joue en la matière un rôle unique (...)

Sur d’autres sites (3145)

  • Problems accessing codecs with ggplot and gganimate

    19 décembre 2016, par noLongerRandom

    Using gganimate. Can’t figure out how to properly access functionality of ffmpeg, specifically I want to change the codec I’m using in the video file I’m outputting.

    # load packages
    
library(ggplot)
    
library(animation)
    
library(gganimate)
    

    
# Here's my data.frame
    
myDf <- data.frame(
    
    year = c(1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014), 
    
    bottom50 = c(0.195, 0.191, 0.187, 0.192, 0.196, 0.205, 0.207, 0.210, 0.209, 0.204, 0.203, 0.204, 0.205, 0.203, 0.202, 0.200, 0.200, 0.201, 0.199, 0.195, 0.190, 0.183, 0.179, 0.179, 0.177, 0.172, 0.169, 0.169, 0.168, 0.166, 0.158, 0.159, 0.158, 0.154, 0.151, 0.148, 0.149, 0.148, 0.146, 0.149, 0.148, 0.145, 0.142, 0.138, 0.135, 0.137, 0.137, 0.136, 0.130, 0.127, 0.123, 0.127, 0.125), top1 = c(0.126, 0.127, 0.129, 0.128, 0.126, 0.123, 0.122, 0.115, 0.110, 0.111, 0.111, 0.109, 0.106, 0.105, 0.105, 0.107, 0.108, 0.111, 0.107, 0.110, 0.112, 0.115, 0.125, 0.125, 0.122, 0.133, 0.149, 0.145, 0.145, 0.139, 0.150, 0.146, 0.147, 0.153, 0.160, 0.166, 0.169, 0.177, 0.183, 0.173, 0.171, 0.172, 0.183, 0.194, 0.201, 0.199, 0.195, 0.185, 0.198, 0.196, 0.208, 0.196, 0.202)
    
)
    

    
#Basic plot
    
p <- ggplot(myDf, aes(x = year, y = bottom50, frame = year)) + 
    
    geom_line(color = "dodgerblue") + 
    
    geom_line(aes(y = top1), color = "darkred")

    The non-animated version gets me what I want :

    enter image description here

    And I get an animation version output to video with :

    gganimate(p, interval = .1, title_frame = FALSE, "income.mp4")

    That’s fine, but I want to change some the output parameters, specifically : alter the dimensions, the frame rate, and use a different codec.

    # change some of the options
    
ani.options(ani.height = 1080, ani.width = 1920, 
    
            interval = 0.04166667, other.opts = "-vcodec qtrle -f mov")
    
# re-animate
    
gganimate(p, title_frame = FALSE, "income.mov")

    That gives me the following error :

    Error in animation_saver(saver, filename) : 
    
  Don't know how to save animation of type mov

    I’m using ’.mov’ as my file extension because I’m trying to change to the Animation codec (so it’s no longer a .mp4 wrapper). I’ve got ffmpeg installed, so this is probably a syntax issue. But the documentation isn’t very clear here ; gganimate doesn’t have any documentation on changing codecs (or outputting any video besides an mp4), and the animation package is light on specifics as well.

  • ffmpeg filter complex maybe too long from my script

    8 novembre 2023, par iceget

    i am using ffmepg and filter complex to blend 2 png files for a exact time.
if i use a too long time (short commands working) then the output file has only 1kb and is not openable.

    


    i have added here my code was is not working, can anybody helps me ?

    


    i getting this back

    


    code :

    


    ffmpeg -loop 1 -t 0.2225 -i /tmp/a.png -loop 1 -t 0.2225 -i /tmp/b.png -s 640x480 -to 256 -c:v libx264 -pix_fmt yuv420p -filter_complex " \
[1:v][0:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b1v]; \
[0:v][1:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b2v]; \
[1:v][0:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b3v]; \
[0:v][1:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b4v]; \
[1:v][0:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b5v]; \
[0:v][1:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b6v]; \
[1:v][0:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b7v]; \
[0:v][1:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b8v]; \
[1:v][0:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b9v]; \
[0:v][1:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b10v]; \
[1:v][0:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b11v]; \
[0:v][1:v]blend=all_expr='A*(if(gte(T,0.2225),1,T/0.2225))+B*(1-(if(gte(T,0.2225),1,T/0.2225)))'[b12v]; \
...
[1:v][b988v][0:v][b989v][1:v][b990v][0:v][b991v][1:v][b992v][0:v][b993v][1:v][b994v][0:v][b995v][1:v][b996v][0:v][b997v][1:v][b998v][0:v][b999v][1:v][b1000v][0:v][b1001v][1:v][b1002v][0:v][b1003v][1:v][b1004v][0:v][b1005v][1:v][b1006v][0:v][b1007v][1:v][b1008v][0:v][b1009v][1:v][b1010v][0:v][b1011v][1:v][b1012v][0:v][b1013v][1:v][b1014v][0:v][b1015v][1:v][b1016v][0:v][b1017v][1:v][b1018v][0:v][b1019v][1:v][b1020v][0:v][b1021v][1:v][b1022v][0:v][b1023v][1:v][b1024v]
[0:v]concat=n=2049:v=1:a=0,format=yuv420p[v]" -map "[v]" /tmp/test.mp4


    


    the output is then this :

    


    ...
  Stream #1:0 (png) -> concat:in2038:v0
  Stream #1:0 (png) -> concat:in2042:v0
  Stream #1:0 (png) -> concat:in2046:v0
  format -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 0x563a0f537380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x563a0f537380] profile High, level 3.0
[libx264 @ 0x563a0f537380] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=6 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 '/tmp/test.mp4':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480, q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    Metadata:
      encoder         : Lavc58.35.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Getötet   3 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x



    


    i create the filter complex by php with a for loop for creating the final syntax for ffmpeg.

    


    getting at the end of the command (debug log) :

    


    [auto_scaler_2044 @ 0x560f0db26c40] w:640 h:480 fmt:pal8 sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x2
[auto_scaler_2045 @ 0x560f144cf240] w:640 h:480 fmt:pal8 sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x2
[Parsed_blend_1022 @ 0x560f19f96d00] [framesync @ 0x560f19f96e08] Selected 1/25 time base
[Parsed_blend_1022 @ 0x560f19f96d00] [framesync @ 0x560f19f96e08] Sync level 2
[auto_scaler_3071 @ 0x560f18cf8a40] w:640 h:480 fmt:pal8 sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x2
[auto_scaler_2046 @ 0x560f0db27180] w:640 h:480 fmt:pal8 sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x2
[auto_scaler_2047 @ 0x560f144d00c0] w:640 h:480 fmt:pal8 sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x2
[Parsed_blend_1023 @ 0x560f19f97400] [framesync @ 0x560f19f97508] Selected 1/25 time base
[Parsed_blend_1023 @ 0x560f19f97400] [framesync @ 0x560f19f97508] Sync level 2
[auto_scaler_3072 @ 0x560f18cf90c0] w:640 h:480 fmt:pal8 sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x2
[scaler_out_0_0 @ 0x560f1a625140] w:640 h:480 fmt:yuv420p sar:0/1 -> w:640 h:480 fmt:yuv420p sar:0/1 flags:0x4
[libx264 @ 0x560f19103180] using mv_range_thread = 40
[libx264 @ 0x560f19103180] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x560f19103180] profile High, level 3.0
[libx264 @ 0x560f19103180] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=6 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 '/tmp/test.mp4':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0, 0, 1/12800: Video: h264 (libx264), 1 reference frame (avc1 / 0x31637661), yuv420p, 640x480, 0/1, q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    Metadata:
      encoder         : Lavc58.35.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Clipping frame in rate conversion by 0.000008
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream) 0x
cur_dts is invalid (this is harmless if it occurs once at the start per stream) 0x
cur_dts is invalid (this is harmless if it occurs once at the start per stream) 0x
Getötet


    


    is that the problem ?

    


    i have also tried with filter complex script, but the same error appears.

    


    thank you so much

    


    many greets iceget

    


    if i use a shorter time (about 10 seconds) then its working fine. but when i add 100 or 256 seconds, then i getting only a 1kb mp4 file.

    


    thank you

    


  • Stream from MP4 file over RTSP with ffserver

    25 octobre 2019, par sirlion

    I’m trying to stream a mp4 file over RTSP using ffserver with no luck so far. I just want to stream directly from the file, without feeding from ffmpeg (no transcoding involved). But I’ve made it work with mpg video.

    Here is my ffserver config file :

    Port 8090
    
BindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 500000
    
CustomLog -
    
NoDaemon
    

    
RTSPPort 7654
    
RTSPBindAddress 0.0.0.0
    

    
<stream>
    
    Format rtp
    
    File "/home/g/video_streaming/sample3-mpeg2.mpg"
    
</stream>
    
<stream>
    
    Format rtp
    
    File "/home/g/video.mp4"
    
</stream>

    When I launch ffserver, everything seems fine based on the log output :

    $ ./dev/ffmpeg/ffserver -f ffserver-sample.conf
    
ffserver version N-45673-gd0c27e8 Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Oct 18 2012 10:36:52 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration:
    
  libavutil      51. 76.100 / 51. 76.100
    
  libavcodec     54. 66.100 / 54. 66.100
    
  libavformat    54. 33.100 / 54. 33.100
    
  libavdevice    54.  3.100 / 54.  3.100
    
  libavfilter     3. 19.103 /  3. 19.103
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 16.100 /  0. 16.100
    
Thu Oct 18 11:54:22 2012 Opening file '/home/g/video.mp4'
    
Thu Oct 18 11:54:22 2012 Opening file '/home/g/video.mp4'
    
Thu Oct 18 11:54:23 2012 Opening file '/home/g/video_streaming/sample3-mpeg2.mpg'
    
Thu Oct 18 11:54:23 2012 [mpeg @ 0x1dae3c0]max_analyze_duration 5000000 reached at 5005000
    
Thu Oct 18 11:54:23 2012 Opening file '/home/g/video_streaming/sample3-mpeg2.mpg'
    
Thu Oct 18 11:54:23 2012 [mpeg @ 0x1dae3c0]max_analyze_duration 5000000 reached at 5005000
    
Thu Oct 18 11:54:23 2012 FFserver started.

    Finally, if I run ffplay in order to test the server, everything works fine for the mpg file, but not for the mp4 :

    $ ffplay rtsp://192.168.1.99:7654/test2-rtsp
    
ffplay version N-45656-g916352f Copyright (c) 2003-2012 the FFmpeg developers
    
  built on Oct 17 2012 16:14:14 with gcc 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5.1)
    
  configuration:
    
  libavutil      51. 76.100 / 51. 76.100
    
  libavcodec     54. 66.100 / 54. 66.100
    
  libavformat    54. 33.100 / 54. 33.100
    
  libavdevice    54.  3.100 / 54.  3.100
    
  libavfilter     3. 19.103 /  3. 19.103
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 16.100 /  0. 16.100
    
rtsp://192.168.1.99:7654/test2-rtsp: Invalid data found when processing input
    

    
Server's output:
    

    
Thu Oct 18 11:57:51 2012 FFserver started.
    
Thu Oct 18 11:58:01 2012 192.168.1.101 - - [DESCRIBE] "rtsp://192.168.1.99:7654/test2-rtsp RTSP/1.0" 200 167
    
Segmentation fault (core dumped)

    I don’t really know what I could be missing. I’ve just read in the official doc that streaming from a file is kind of broken. Since I don’t really know if that’s up to date, I decided to give it a try here.

    Any help or suggestions ? Alternatives ?

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