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  • Supporting all media types

    13 April 2011, by

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats: images: png, gif, jpg, bmp and more audio: MP3, Ogg, Wav and more video: AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data: OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Submit bugs and patches

    13 April 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information: the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • MediaSPIP 0.1 Beta version

    25 April 2011, by

    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 (...)

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  • SOX got nothing from SoundFlower

    12 September 2016, by xiaose

    For some reason on some comps SoundFlower does not catch audio.
    I.e. there are SoundFlower but when I switch input\output to the SoundFlower I cannot get any sound. I have got only not empty file without any sound.

    Okay, how I try to get the sound...

    Just FYI:

    $ system_profiler SPSoftwareDataType

    Software:
    

    
    System Software Overview:
    

    
      System Version: OS X 10.10.5 (14F1912)
    
      Kernel Version: Darwin 14.5.0
    
      Boot Volume: Macintosh HD
    
      Boot Mode: Normal
    
      Computer Name: Craig Computer
    
      User Name: Craig (craigm)
    
      Secure Virtual Memory: Enabled
    
      Time since boot: 1 day22:12

    Gonna check is AVFoundation works:

    $ ./ffmpeg -h demuxer=avfoundation

    Demuxer avfoundation [AVFoundation input device]:
    
AVFoundation input device AVOptions:
    
  -list_devices      <int>        .D...... list available devices (from 0 to 1) (default false)
    
     true                         .D...... 
    
     false                        .D...... 
    
  -video_device_index <int>        .D...... select video device by index for devices with same name (starts at 0) (from -1 to INT_MAX) (default -1)
    
  -audio_device_index <int>        .D...... select audio device by index for devices with same name (starts at 0) (from -1 to INT_MAX) (default -1)
    
  -pixel_format          .D...... set pixel format (default yuv420p)
    
  -framerate          .D...... set frame rate (default "ntsc")
    
  -video_size         .D...... set video size
    
  -capture_cursor    <int>        .D...... capture the screen cursor (from 0 to 1) (default 0)
    
  -capture_mouse_clicks <int>        .D...... capture the screen mouse clicks (from 0 to 1) (default 0)
    
</int></int></int></int></int>

    Gonna get list of AVFoundation audio devices:

    $ ./ffmpeg -f avfoundation -list_devices true -i ’’

    ffmpeg version 3.1.1-tessus Copyright (c) 2000-2016 the FFmpeg developers
    
  built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
    
  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --as=yasm --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb
    
  libavutil      55. 28.100 / 55. 28.100
    
  libavcodec     57. 48.101 / 57. 48.101
    
  libavformat    57. 41.100 / 57. 41.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 47.100 /  6. 47.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  1.100 /  2.  1.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
[AVFoundation input device @ 0x7fda40421000] AVFoundation video devices:
    
[AVFoundation input device @ 0x7fda40421000] [0] Built-in iSight
    
[AVFoundation input device @ 0x7fda40421000] [1] Capture screen 0
    
[AVFoundation input device @ 0x7fda40421000] AVFoundation audio devices:
    
[AVFoundation input device @ 0x7fda40421000] [0] Soundflower (64ch)
    
[AVFoundation input device @ 0x7fda40421000] [1] Built-in Microphone
    
[AVFoundation input device @ 0x7fda40421000] [2] Soundflower (2ch)
    
[AVFoundation input device @ 0x7fda40421000] [3] Built-in Input
    
: Input/output error

    Okay, we have SoundFlower in devices:

    [AVFoundation input device @ 0x7fda40421000] [2] Soundflower (2ch)

    Then I run AppleScript which gonna switch to the "SoundFlower (2ch)":

    enableSF("input")

    enableSF("output")

    Where enableSF(stdname) is:

    on enableSF(stdname)    
    
    tell application "System Preferences"   
    
        -- activate 
    
        tell anchor stdname of pane "com.apple.preference.sound" to reveal  
    
        tell application "System Events"    
    
            tell application process "System Preferences"   
    
                tell tab group 1 of window 1    
    
                    delay 2 
    
                    set rowslist to selected of row of table 1 of scroll area 1 
    
                    set counter to 0    
    
                    repeat with id in rowslist  
    
                        set counter to counter + 1  
    
                        set rowName to (value of text field 1 of row counter of table 1 of scroll area 1)   
    

    
                        set output to stdname &amp; " " &amp; rowName   
    
                        set scrpt to "echo \"" &amp; output &amp; "\" >> ~/Desktop/ds.log"  
    
                        do shell script scrpt   
    

    
                        if (rowName is equal to "Soundflower (2ch)") then   
    
                            set selected of row counter of table 1 of scroll area 1 to true 
    

    
                            set output to "
    
                            !!! FOUND SF for " &amp; stdname &amp; " " &amp; rowName    
    
                            set scrpt to "echo \"" &amp; output &amp; "\" >> ~/Desktop/ds.log"  
    
                            log output  
    
                            do shell script scrpt
    
                            exit repeat 
    
                        end if  
    
                    end repeat  
    
                end tell    
    
            end tell    
    
        end tell    
    
    end tell    
    
end enableSF    

    In result I have got this:

    input Internal Microphone
    
input Line In
    
input Digi CoreAudio Device
    
input Soundflower (2ch)
    

    
        !!! FOUND SF for input Soundflower (2ch)
    

    
output Headphones
    
output Digi CoreAudio Device
    
output Soundflower (2ch)
    

    
        !!! FOUND SF for output Soundflower (2ch)

    It means that we switch to the SoundFlower. Actually the same can be done by hands, but the script is more reliable as for me.

    Okay, next we can try to save some audio via SOX:

    $ /Applications/sox-14.3.2/sox -d /Desktop/out.wav

    Input File     : 'default' (coreaudio)
    
Channels       : 2
    
Sample Rate    : 44100
    
Precision      : 32-bit
    
Sample Encoding: 32-bit Signed Integer PCM
    

    

    
In:0.00% 00:00:00.00 [00:00:00.00] Out:0     [      |      ]        Clip:0    
    
...
    
...
    
... 
    
In:0.00% 00:00:02.51 [00:00:00.00] Out:106k  [      |      ]        Clip:0    
    
...
    
...
    
...
    
In:0.00% 00:00:11.80 [00:00:00.00] Out:516k  [      |      ]        Clip:0    /Applications/sox-14.3.2/sox WARN coreaudio: coreaudio: unhandled buffer overrun.  Data discarded.
    
...
    
...
    
...    
    
In:0.00% 00:00:12.35 [00:00:00.00] Out:545k  [      |      ]        Clip:0    /Applications/sox-14.3.2/sox WARN coreaudio: coreaudio: unhandled buffer overrun.  Data discarded.
    
...
    
...
    
...
    
In:0.00% 00:00:13.28 [00:00:00.00] Out:582k  [      |      ]        Clip:0    
    
Aborted.

    And, as you can see, the SOX gives me an empty file. Rather, it gives the data, but there is no sound.

    This happens on all OS from 10.10 to 10.11.6. Normal output should be this type:

    In:0.00% 00:00:00.28 [00:00:00.00] Out:8.19k [======|======]        Clip:0      
    
...
    
...
    
...
    
In:0.00% 00:00:04.37 [00:00:00.00] Out:188k  [ -====|===== ] Hd:1.1 Clip:0 
    
...
    
...
    
...     
    
In:0.00% 00:00:08.82 [00:00:00.00] Out:385k  [======|=====-] Hd:1.1 Clip:0      
    
In:0.00% 00:00:09.01 [00:00:00.00] Out:393k  [-=====|=====-] Hd:1.1 Clip:0      
    
In:0.00% 00:00:09.20 [00:00:00.00] Out:401k  [======|======] Hd:1.1 Clip:0

  • pixlet: Fix architecture-dependent code and values

    2 March 2017, by Vittorio Giovara
    pixlet: Fix architecture-dependent code and values

    The constants used in the decoder used floating point precision,
    
and this caused different values to be generated on different
    
architectures. Additionally on big endian machines, the fate test
    
would output bytes in native order, which is different from the one
    
hardcoded in the test.
    

    So, eradicate floating point numbers and use fixed point (32.32)
    
arithmetics everywhere, replacing constants with precomputed integer
    
values, and force the pixel format output to be the same in the fate
    
test.
    

    Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
    • [DBH] libavcodec/pixlet.c
    • [DBH] tests/fate/video.mak
    • [DBH] tests/ref/fate/pixlet

  • avcodec/pixlet: fix architecture-dependent code and values

    7 March 2017, by Vittorio Giovara
    avcodec/pixlet: fix architecture-dependent code and values

    The constants used in the decoder used floating point precision,
    
and this caused different values to be generated on different
    
architectures.
    

    So, eradicate floating point numbers and use fixed point (32.32)
    
arithmetics everywhere, replacing constants with precomputed integer
    
values.
    

    Signed-off-by: Vittorio Giovara <vittorio.giovara at gmail.com>
    
Signed-off-by: Paul B Mahol <onemda@gmail.com>
    • [DH] libavcodec/pixlet.c

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