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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (6695)

  • OpenCV libopencv_core.so.2.4.1 File Not Found

    8 décembre 2017, par benrules2

    I am trying to setup OpenCV v2.4.1 with FFMPEG v0.11 support on Scientific Linux SL release 5.0 (Boron), and I am running into a problem with a missing file that seems completely undocumented. The error I am getting is as follows :

    -- Install configuration: "Release"
    

    
-- Up-to-date: /home/s18/s1138832/OpenCV/include/opencv/cv.h
    
-- Up-to-date: /home/s18/s1138832/OpenCV/include/opencv/cxmisc.h
    
-- Up-to-date: /home/s18/s1138832/OpenCV/include/opencv/cvwimage.h
    
-- Up-to-date: /home/s18/s1138832/OpenCV/include/opencv2/opencv.hpp
    
CMake Error at modules/core/cmake_install.cmake:63 (FILE):
    
file INSTALL cannot find file
    
  "/home/s18/s1138832/OpenCV/lib/libopencv_core.so.2.4.1" to install.
    
Call Stack (most recent call first):
    
  modules/cmake_install.cmake:57 (INCLUDE)
    
  cmake_install.cmake:56 (INCLUDE)

    I honestly don’t know where to begin troubleshooting this at this point. I successfully installed without ffmpeg a few days ago, but now I can’t even install with ffmpeg support set to off.

    The files that link to the missing library are :

    lrwxrwxrwx 1 s1138832 s18      21 Jun 17 18:26 libopencv_core.so ->    libopencv_core.so.2.4
    
lrwxrwxrwx 1 s1138832 s18      23 Jun 17 18:26 libopencv_core.so.2.4 -> libopencv_core.so.2.4.1

    Any advice or prods in the right direction would be much appreciated. I would also be happy to provide more info on whatever interesting details I may have omitted.

    UPDATES : This website seems to have the same error, but I can’t read it and translations patchy - http://www.opencv.org.cn/forum/viewtopic.php?f=1&t=15664 ( http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwww.opencv.org.cn%2Fforum%2Fviewtopic.php%3Ff%3D1%26t%3D15664&act=url )

    libopencv_core.so.2.4.1 exists after "make", but "make install" deletes it somehow. I copied it and added it again, but it didn’t change anything

  • ffmpeg Live Input MP4 Error [migrated]

    3 mars 2013, par Brianjs

    Currently I have a mic and a webcam connected to my computer. I am running ffmpeg on CentOS 6.3.

    When I try to record a video without audio by :

    ffmpeg -y -f video4linux2 -t 15 -s 640x480 -r 25 -i /dev/video0 /home/irdb/Desktop/out2.mp4

    it runs perfectly and I get a nice video. However when I try to run with audio included by :

    ffmpeg -y -f video4linux2 -t 15 -s 640x480 -r 25 -i /dev/video0 -f alsa -ar 22050 -ab 64k -ac 2 -i default /home/irdb/Desktop/out2.mp4

    It errors out and prints :

    [NULL @ 0x1e33fc0] Codec is experimental but experimental codecs are not enabled,      see -strict -2
    
Output #0, mp4, to '/home/irdb/Desktop/out2.mp4':
    
Stream #0:0: Video: h264, yuv420p, 640x480, q=-1--1, 90k tbn, 25 tbc
    
Stream #0:1: Audio: none, 22050 Hz, 2 channels, flt, 128 kb/s
    
Stream mapping:
    
Stream #0:0 -> #0:0 (rawvideo -> libx264)
    
Stream #1:0 -> #0:1 (pcm_s16le -> aac)
    
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such    as bit_rate, rate, width or height

    I assume this has to do with the first error as when I use something like mpg it works just fine. However I plan on streaming this live and want mp4 format as that is pretty much supported by all browsers (Firefox with flash fallback).

    Does anyone know how to get the audio to work without additional processing (as I want to stream live and not write to a file eventually).

  • Overlay image in ts file

    12 juin 2015, par good-engineer

    I’m using the FFmpeg library in Android.

    I’m able to generate a .ts file which i can play later using VLC player. But now i want my app to overlay a .png image over the whole video.

    The .ts file i want to overlay an image in is called "out.ts". The name might seem confusing, but it is called that way because it is the output of my camera.

    This is the line i’m using :

    ffmpeg -i /storage/emulated/0/out.ts -i /storage/emulated/0/mustache.png -filter_complex "overlay=10:10" /storage/emulated/0/newout.ts

    This is the output i’m receiving :

        ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
libavutil      54.  7.100 / 54.  7.100
    
libavcodec     56.  1.100 / 56.  1.100
    
libavformat    56.  4.101 / 56.  4.101
    
libavdevice    56.  0.100 / 56.  0.100
    
libavfilter     5.  1.100 /  5.  1.100
    
libswscale      3.  0.100 /  3.  0.100
    
libswresample   1.  1.100 /  1.  1.100
    
libpostproc    53.  0.100 / 53.  0.100
    
Input #0, mpegts, from '/storage/emulated/0/out.ts':
    
Duration: 00:00:02.79, start: 0.000000, bitrate: 1118 kb/s
    
Program 1
    
Stream #0:0[0x1e1]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 640x480, 32 tbr, 90k tbn, 180k tbc
    
Input #1, png_pipe, from '/storage/emulated/0/mustache.png':
    
Duration: N/A, bitrate: N/A
    
Stream #1:0: Video: png, ya8, 1848x580 [SAR 2835:2835 DAR 462:145], 25 tbr, 25 tbn, 25 tbc
    
[AVFilterGraph @ 0x2b411ec0] No such filter: '"overlay'
    
Error configuring filters.

    Some explaination on how to tell ffmpeg where to position the .png image would be appreciated.

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