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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 (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • 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 (...)

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  • ffmpeg cut video at specified start position

    15 septembre 2014, par user2648561

    I’m trying to use ffmpeg to cut out part of an avi file.
    I know similar questions have been asked before, but i’ve trawled through loads of other posts and I can’t see where I’m going wrong.

    The command line args i’m using to test on a 7 second video is :

    -ss 00:00:01 -t 00:00:01 -i "C :\recordings\2013-09-11\Camera 1\Camera 1_2013-09-11_22-23-43.avi" -vcodec copy -acodec copy "I :\clip2.avi"

    The output is :

    ffmpeg version N-56254-gb7bd688 Copyright (c) 2000-2013 the FFmpeg developers built on Sep 12 2013 21:00:14 with gcc 4.7.3 (GCC) configuration :
    —enable-gpl —enable-version3 —disable-w32threads —enable-avisynth —enable-bzlib —enable-fontconfig —enable-frei0r —enable-gnutls —enable-iconv —enable-libass —enable-libbluray —enable-libcaca —enable-libfreetype —enable-libgsm —enable-libilbc —enable-libmodplug —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-librtmp —enable-libschroedinger —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvo-aacenc —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libx264 —enable-libxavs —enable-libxvid —enable-zlib
    libavutil 52. 43.100 / 52. 43.100
    libavcodec 55. 31.101 / 55. 31.101
    libavformat 55. 16.102 / 55. 16.102
    libavdevice 55. 3.100 / 55. 3.100
    libavfilter 3. 84.100 / 3. 84.100
    libswscale 2. 5.100 / 2. 5.100
    libswresample 0. 17.103 / 0. 17.103
    libpostproc 52. 3.100 / 52. 3.100

    Guessed Channel Layout for  Input Stream #0.1 : mono
    

    
Input #0, avi, from 'C:\recordings\2013-09-11\Camera 1\Camera 1_2013-09-11_22-23-43.avi':
    
  Duration: 00:00:07.03, start: 0.000000, bitrate: 787 kb/s
    
    Stream #0:0: Video: msmpeg4v3 (DIV3 / 0x33564944), yuv420p, 800x448, 30 fps, 30 tbr, 30 tbn, 30 tbc
    
    Stream #0:1: Audio: adpcm_ms ([2][0][0][0] / 0x0002), 44100 Hz, mono, s16, 176 kb/s
    
Output #0, avi, to 'I:\clip2.avi':
    
  Metadata:
    
    ISFT            : Lavf55.16.102
    
    Stream #0:0: Video: msmpeg4v3 (DIV3 / 0x33564944), yuv420p, 800x448, q=2-31, 30 fps, 30 tbn, 30 tbc
    
    Stream #0:1: Audio: adpcm_ms ([2][0][0][0] / 0x0002), 44100 Hz, mono, 176 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame=   88 fps=0.0 q=-1.0 Lsize=     226kB time=00:00:02.03 bitrate= 908.7kbits/s    
    

    
video:146kB audio:66kB subtitle:0 global headers:0kB muxing overhead 6.345259%

    I end up with a clip which is 3 seconds long !!!??
    In the output I can see that the -ss flag is completely ignored.

    Can anyone see where I’m going wrong ?

    Thanks

  • Is there a chance to check why a videostream on IOS does not work ?

    13 septembre 2013, par mazleu

    I have a very strange problem.

    To stream videos I use AMS (Adobe Media Server)
    This works fine for the most Videos.
    But 4 videos do not work on iOS devices. The first seconds work but then the Video break.
    All Videos (over 1000) are convertet with the same ffmpeg settings.

    I try other settings and other converters but the Result are the same.

    Is there any opportunity to show why IOS don't like this 4 Videos ?

    Mediainfo form a failed video :

    MediaInfoLib - v0.7.62
    

    
General
    
Complete name                       : ---
    
Format                              : MPEG-4
    
Format profile                      : Base Media
    
Codec ID                            : isom
    
File size                           : 91.3 MiB
    
Duration                            : 24mn 27s
    
Overall bit rate mode               : Variable
    
Overall bit rate                    : 522 Kbps
    
Encoded date                        : UTC 2013-09-12 14:24:13
    
Tagged date                         : UTC 2013-09-12 14:24:13
    

    
Video
    
ID                                  : 1
    
Format                              : AVC
    
Format/Info                         : Advanced Video Codec
    
Format profile                      : High@L4.1
    
Format settings, CABAC              : Yes
    
Format settings, ReFrames           : 4 frames
    
Codec ID                            : avc1
    
Codec ID/Info                       : Advanced Video Coding
    
Duration                            : 24mn 27s
    
Bit rate                            : 387 Kbps
    
Maximum bit rate                    : 4 885 Kbps
    
Width                               : 1 280 pixels
    
Height                              : 720 pixels
    
Display aspect ratio                : 16:9
    
Frame rate mode                     : Constant
    
Frame rate                          : 30.000 fps
    
Color space                         : YUV
    
Chroma subsampling                  : 4:2:0
    
Bit depth                           : 8 bits
    
Scan type                           : Progressive
    
Bits/(Pixel*Frame)                  : 0.014
    
Stream size                         : 67.7 MiB (74%)
    
Writing library                     : x264 core 130 r2273 b3065e6
    
Encoding settings                   : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / 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=1 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=28.0 / qcomp=0.70 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=50000 / vbv_bufsize=50000 / crf_max=0.0 / nal_hrd=none / ip_ratio=1.40 / aq=1:0.60
    
Encoded date                        : UTC 2013-09-12 14:24:13
    
Tagged date                         : UTC 2013-09-12 14:24:16
    

    
Audio
    
ID                                  : 2
    
Format                              : AAC
    
Format/Info                         : Advanced Audio Codec
    
Format profile                      : LC
    
Codec ID                            : 40
    
Duration                            : 24mn 27s
    
Bit rate mode                       : Variable
    
Bit rate                            : 132 Kbps
    
Maximum bit rate                    : 172 Kbps
    
Channel(s)                          : 2 channels
    
Channel positions                   : Front: L R
    
Sampling rate                       : 48.0 KHz
    
Compression mode                    : Lossy
    
Delay relative to video             : 67ms
    
Stream size                         : 22.7 MiB (25%)
    
Encoded date                        : UTC 2013-09-12 14:24:15
    
Tagged date                         : UTC 2013-09-12 14:24:16

  • Audio is not playing properly in ffmpeg player

    23 septembre 2013, par user1241903

    I need to create a player which will decrypt the input on-fly and play the content.
    I have choosen ffmpeg libs (libav*) to create player and to start I have followed this link

    but audio is not playing properly,video is playing fine.
    I am using ubuntu 12.04LTS 64bit OS with the following ffmpeg version,

    admin@vz-X401A1:~$ ffmpeg 
    
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Sep 11 2013 13:46:26 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --prefix=/home/admin/ffmpeg_build --extra-cflags=-I/home/admin/ffmpeg_build/include --extra-ldflags=-L/home/admin/ffmpeg_build/lib --bindir=/home/admin/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
    
  libavutil      52. 43.100 / 52. 43.100
    
  libavcodec     55. 31.101 / 55. 31.101
    
  libavformat    55. 16.102 / 55. 16.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 84.100 /  3. 84.100
    
  libswscale      2.  5.100 /  2.  5.100
    
  libswresample   0. 17.103 /  0. 17.103
    
  libpostproc    52.  3.100 / 52.  3.100
    
Hyper fast Audio and Video encoder
    
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
    

    
Use -h to get full help or, even better, run 'man ffmpeg'
    
admin@vz-X401A1:~$

    and downloaded tutorial07.c from this link

    still, with this also, sound is not playing properly.

    I need help to solve the following issues,

    1. How can I fix this audio issue(I have gone through similar question in StackOverflow and installed old ver. of ffmpeg, but issue still remains).

    2. And also suggest some steps or tutorial, how to implement on-fly decryption process (in C) and integrate this with the player.

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