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  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

Sur d’autres sites (3220)

  • ffmpeg dont work like console

    27 février 2014, par theroqco

    This works fine at console

    ffmpeg -y -i a.mp4 -codec:v libx264 -profile:v high -vf scale=-1:360 -b:v 300k -maxrate 500k -bufsize 500k c.mp4 2> output.txt

    then i try this live. didnt get a-log.txt file.

    Set WScript = Server.CreateObject("WSCRIPT.SHELL")
    

    
    WScript.Run("C:\Inetpub\wwwroot\ffmpegfile\bin\ffmpeg.exe -y -i C:\Inetpub\wwwroot\videos\a.mp4 -codec:v libx264 -profile:v high -vf scale=-1:360 -b:v 300k -maxrate 300k -bufsize 500k C:\Inetpub\wwwroot\videos\new\a.mp4 2> C:\Inetpub\wwwroot\videos\new\a-log.txt")
    

    
    Set WScript = nothing

    How can i run this.
    thanks.

  • Piping images to avconv at unknown fps

    26 février 2014, par Nick Spacek

    I am currently reading images from a camera "as fast as possible" (>50fps), outputting them as JPEGs, and piping them to avconv using the image2pipe input. What is a good approach to getting the output stream to be as "real time" as possible ? Do I instead need to get the output to be a specific frame rate ? I had hoped avconv could handle that for me, dropping frames as needed.

    This is the command I am currently using :

    avconv -re -f image2pipe -codec:v mjpeg -i - -f flv -codec:v libx264 -profile:v baseline -preset ultrafast -tune zerolatency -an -f mpegts udp://localhost:9090

  • FFMPEG options for video streaming

    26 février 2014, par YorgZ

    I am trying to use ffmpeg to stream video using ffserver. You will find below the ffserver1.conf file, and the log output from the ffmpeg command.

    One of the errors references presets, and everytime I try to use presets I get the error "File not found, even after copying all the preset files in the current directory.

    Thanks for the help.

    YorgZ

    FFSERVER CONF
    

    
YorgZ-Macbook$cat ffserver1.conf
    
Port 8090
    
BindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 4000
    
CustomLog -
    

    

    
<feed>
    
      File feed1.ffm
    
      FileMaxSize 1G
    
      ACL allow 127.0.0.1
    
      ACL allow localhost
    
      ACL allow 10.0.0.0 10.0.255.255
    
</feed>
    

    
<stream>
    
    Feed feed1.ffm
    
    Format mp4
    
    VideoFrameRate  29.97
    
    VideoBitRate    500
    
    VideoSize   640x352
    
</stream>
    

    
<stream>
    
    Format status
    
    ACL allow localhost
    
    ACL allow 10.0.0.0 10.0.255.255
    
</stream>
    
YorgZ-Macbook$
    

    
FFMPEG COMMAND AND LOG 
    

    
 YorgZ-Macbook$./ffmpeg -loglevel debug -i TestStream.mp4  -codec:v libx264 -b:v 500k  -vf "scale=640:352" -r 29.97 -codec:a aac -b:a 128k http://127.0.0.1:8090/feed1.ffm
    

    
    ffmpeg version 2.1.3-tessus Copyright (c) 2000-2013 the FFmpeg developers
    
      built on Jan 16 2014 13:50:59 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)
    
      configuration: --prefix=/Users/tessus/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-libxvid --enable-libspeex --enable-bzlib --enable-zlib --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxavs --enable-version3 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvpx --enable-libgsm --enable-libopus --enable-fontconfig --enable-libfreetype --enable-libass --enable-libbluray --enable-filters --enable-runtime-cpudetect
    
      libavutil      52. 48.101 / 52. 48.101
    
      libavcodec     55. 39.101 / 55. 39.101
    
      libavformat    55. 19.104 / 55. 19.104
    
      libavdevice    55.  5.100 / 55.  5.100
    
      libavfilter     3. 90.100 /  3. 90.100
    
      libswscale      2.  5.101 /  2.  5.101
    
      libswresample   0. 17.104 /  0. 17.104
    
      libpostproc    52.  3.100 / 52.  3.100
    
    Splitting the commandline.
    
    Reading option &#39;-loglevel&#39; ... matched as option &#39;loglevel&#39; (set logging level) with argument &#39;debug&#39;.
    
    Reading option &#39;-i&#39; ... matched as input file with argument &#39;TestStream.mp4&#39;.
    
    Reading option &#39;-codec:v&#39; ... matched as option &#39;codec&#39; (codec name) with argument &#39;libx264&#39;.
    
    Reading option &#39;-b:v&#39; ... matched as option &#39;b&#39; (video bitrate (please use -b:v)) with argument &#39;500k&#39;.
    
    Reading option &#39;-vf&#39; ... matched as option &#39;vf&#39; (set video filters) with argument &#39;scale=640:352&#39;.
    
    Reading option &#39;-r&#39; ... matched as option &#39;r&#39; (set frame rate (Hz value, fraction or abbreviation)) with argument &#39;29.97&#39;.
    
    Reading option &#39;-codec:a&#39; ... matched as option &#39;codec&#39; (codec name) with argument &#39;aac&#39;.
    
    Reading option &#39;-b:a&#39; ... matched as option &#39;b&#39; (video bitrate (please use -b:v)) with argument &#39;128k&#39;.
    
    Reading option &#39;http://127.0.0.1:8090/feed1.ffm&#39; ... matched as output file.
    
    Finished splitting the commandline.
    
    Parsing a group of options: global .
    
    Applying option loglevel (set logging level) with argument debug.
    
    Successfully parsed a group of options.
    
    Parsing a group of options: input file TestStream.mp4.
    
    Successfully parsed a group of options.
    
    Opening an input file: TestStream.mp4.
    
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10201a200] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
    
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10201a200] ISO: File Type Major Brand: mp42
    
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10201a200] File position before avformat_find_stream_info() is 33783
    
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10201a200] All info found
    
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10201a200] File position after avformat_find_stream_info() is 64138
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#39;TestStream.mp4&#39;:
    
      Metadata:
    
        major_brand     : mp42
    
        minor_version   : 0
    
        compatible_brands: isommp42
    
        creation_time   : 2014-02-17 10:17:06
    
      Duration: 00:01:40.10, start: 0.000000, bitrate: 582 kb/s
    
        Stream #0:0(und), 15, 1/30000: Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1001/60000, 483 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
        Metadata:
    
          handler_name    : VideoHandler
    
        Stream #0:1(und), 1, 1/44100: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
    
        Metadata:
    
          creation_time   : 2014-02-17 10:17:06
    
          handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
    Successfully opened the file.
    
    Parsing a group of options: output file http://127.0.0.1:8090/feed1.ffm.
    
    Applying option codec:v (codec name) with argument libx264.
    
    Applying option b:v (video bitrate (please use -b:v)) with argument 500k.
    
    Applying option vf (set video filters) with argument scale=640:352.
    
    Applying option r (set frame rate (Hz value, fraction or abbreviation)) with argument 29.97.
    
    Applying option codec:a (codec name) with argument aac.
    
    Applying option b:a (video bitrate (please use -b:v)) with argument 128k.
    
    Successfully parsed a group of options.
    
    Opening an output file: http://127.0.0.1:8090/feed1.ffm.
    
    [ffm @ 0x102037200] Format ffm probed with size=2048 and score=101
    
    [AVIOContext @ 0x101d04fe0] Statistics: 4096 bytes read, 0 seeks
    
    Mon Feb 24 11:53:05 2014 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175
    
    Successfully opened the file.
    
    detected 8 logical cores
    
    [graph 0 input from stream 0:1 @ 0x101d05a20] Setting &#39;time_base&#39; to value &#39;1/44100&#39;
    
    [graph 0 input from stream 0:1 @ 0x101d05a20] Setting &#39;sample_rate&#39; to value &#39;44100&#39;
    
    [graph 0 input from stream 0:1 @ 0x101d05a20] Setting &#39;sample_fmt&#39; to value &#39;fltp&#39;
    
    [graph 0 input from stream 0:1 @ 0x101d05a20] Setting &#39;channel_layout&#39; to value &#39;0x3&#39;
    
    [graph 0 input from stream 0:1 @ 0x101d05a20] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
    
    [audio format for output stream 0:0 @ 0x102d004e0] Setting &#39;sample_fmts&#39; to value &#39;s16&#39;
    
    [audio format for output stream 0:0 @ 0x102d004e0] Setting &#39;sample_rates&#39; to value &#39;22050&#39;
    
    [audio format for output stream 0:0 @ 0x102d004e0] Setting &#39;channel_layouts&#39; to value &#39;0x4&#39;
    
    [audio format for output stream 0:0 @ 0x102d004e0] auto-inserting filter &#39;auto-inserted resampler 0&#39; between the filter &#39;Parsed_anull_0&#39; and the filter &#39;audio format for output stream 0:0&#39;
    
    [AVFilterGraph @ 0x101d03ea0] query_formats: 4 queried, 6 merged, 3 already done, 0 delayed
    
    0.500000 0.500000 
    
    [auto-inserted resampler 0 @ 0x102d00ca0] ch:2 chl:stereo fmt:fltp r:44100Hz -> ch:1 chl:mono fmt:s16 r:22050Hz
    
    [graph 1 input from stream 0:0 @ 0x103b003a0] Setting &#39;video_size&#39; to value &#39;640x360&#39;
    
    [graph 1 input from stream 0:0 @ 0x103b003a0] Setting &#39;pix_fmt&#39; to value &#39;0&#39;
    
    [graph 1 input from stream 0:0 @ 0x103b003a0] Setting &#39;time_base&#39; to value &#39;1/30000&#39;
    
    [graph 1 input from stream 0:0 @ 0x103b003a0] Setting &#39;pixel_aspect&#39; to value &#39;1/1&#39;
    
    [graph 1 input from stream 0:0 @ 0x103b003a0] Setting &#39;sws_param&#39; to value &#39;flags=2&#39;
    
    [graph 1 input from stream 0:0 @ 0x103b003a0] Setting &#39;frame_rate&#39; to value &#39;30000/1001&#39;
    
    [graph 1 input from stream 0:0 @ 0x103b003a0] w:640 h:360 pixfmt:yuv420p tb:1/30000 fr:30000/1001 sar:1/1 sws_param:flags=2
    
    [scaler for output stream 0:1 @ 0x103b00900] Setting &#39;w&#39; to value &#39;640&#39;
    
    [scaler for output stream 0:1 @ 0x103b00900] Setting &#39;h&#39; to value &#39;352&#39;
    
    [scaler for output stream 0:1 @ 0x103b00900] Setting &#39;flags&#39; to value &#39;0x4&#39;
    
    [scaler for output stream 0:1 @ 0x103b00900] w:640 h:352 flags:&#39;0x4&#39; interl:0
    
    [format @ 0x103b00dc0] compat: called with args=[yuv420p|yuvj420p|yuv422p|yuvj422p|yuv444p|yuvj444p|nv12|nv16]
    
    [format @ 0x103b00dc0] Setting &#39;pix_fmts&#39; to value &#39;yuv420p|yuvj420p|yuv422p|yuvj422p|yuv444p|yuvj444p|nv12|nv16&#39;
    
    [AVFilterGraph @ 0x102d00fc0] query_formats: 5 queried, 4 merged, 0 already done, 0 delayed
    
    [scaler for output stream 0:1 @ 0x103b00900] w:640 h:360 fmt:yuv420p sar:1/1 -> w:640 h:352 fmt:yuv420p sar:44/45 flags:0x4
    
    [libx264 @ 0x102049800] broken ffmpeg default settings detected
    
    [libx264 @ 0x102049800] use an encoding preset (e.g. -vpre medium)
    
    [libx264 @ 0x102049800] preset usage: -vpre <speed> -vpre <profile>
    
    [libx264 @ 0x102049800] speed presets are listed in x264 --help
    
    [libx264 @ 0x102049800] profile is optional; x264 defaults to high
    
    Output #0, ffm, to &#39;http://127.0.0.1:8090/feed1.ffm&#39;:
    
      Metadata:
    
        major_brand     : mp42
    
        minor_version   : 0
    
        compatible_brands: isommp42
    
        creation_time   : now
    
        Stream #0:0(und), 0, 1/1000000: Audio: aac (libvo_aacenc), 22050 Hz, mono, s16, 128 kb/s (default)
    
        Metadata:
    
          creation_time   : 2014-02-17 10:17:06
    
          handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
        Stream #0:1(und), 0, 1/1000000: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x352 [SAR 44:45 DAR 16:9], 1001/30000, q=2-31, 500 kb/s, 1000k tbn, 29.97 tbc (default)
    
        Metadata:
    
          handler_name    : VideoHandler
    
    Stream mapping:
    
      Stream #0:1 -> #0:0 (aac -> libvo_aacenc)
    
      Stream #0:0 -> #0:1 (h264 -> libx264)
    
    Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height
    
    [AVIOContext @ 0x101d04fe0] Statistics: 0 seeks, 0 writeouts
    
    [AVIOContext @ 0x101d03fa0] Statistics: 65536 bytes read, 0 seeks
    
    Mon Feb 24 11:53:05 2014 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 200 0
    
    YorgZ-Macbook$
    
</profile></speed>

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