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Autres articles (59)

  • Supporting all media types

    13 avril 2011, par

    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 (...)

  • 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 (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (7271)

  • Anomalie #3622 : .raccourcis en colonne gauche

    21 décembre 2017, par chan kalan

    ceci dit, la règle overflow-wrap : break-word ; pourrait aussi convenir, peut-être mieux...

  • Short HLS MPEG2 Video Segments Do Not Play

    24 août 2019, par Jon H

    I’ve been attempting to cut a video into small segments (words), to be rearranged. While I’ve been able to do it with FFMPEG, cutting into segments and using the fast concat demuxer to reassemble the segments, I am trying to speed it up.

    I have been doing this by splitting the original video into short MPEG2 .ts segments for each word :

    ffmpeg -ss 1 -to 1.5 -i "source.mp4" -c:v libx264 -b:v 1200k -c:a aac -b:a 192k -hls_flags single_file "word.ts"

    I have then tried making a m3u8 playlist of these short video segments, but I found that only segments around 2 seconds or more, play at all.

    I then tried using the ’cat’ command to join these segments into a single file, which I understand should be possible with MPEG2 streams. However, this did not play all the segments either.

    To test if all the segments were present in this concatenated file, I used FFMPEG to convert it back into an MP4 file, and all the segments were present.

    I would appreciate any suggestions on producing the segments, and concatenating individual segments simply without FFMEPG. My project isn’t viable if having to call FFMPEG each time, but would work great if I can simply concatenate words together.

  • include/c++/4.6.3/bits/stl_algobase.h:329 : undefined reference to

    27 novembre 2013, par user3041105

    My program is fails to compile with this error when I use my own account but when use the root account it compiles successfully. I have installed boost, ffmpeg and opencv.

    The errors are as follows :

    === linking: release/DenseTrack ===
    
 g++ -L/opt/lib -L/home/huangng/software/boost/lib -L/home/huangng/software/opencv/lib -L/home/huangng/software/ffmpeg/lib -pipe -Wall -O3 -ggdb -o release/DenseTrack .build_release/DenseTrack.o -lboost_program_options -lboost_regex -lboost_system -lboost_filesystem -lopencv_core -lopencv_highgui -lopencv_video -lopencv_imgproc -lavformat -lavdevice -lavutil -lavcodec -lswscale
    
 .build_release/DenseTrack.o: In function `main':
    
 /home/huangng/lab/dense_trajectory_release_v1.1/DenseTrack.cpp:103: undefined reference to `IplImagePyramid::rebuild(IplImageWrapper)'
    
 /home/huangng/lab/dense_trajectory_release_v1.1/DenseTrack.cpp:307: undefined reference to `IplImagePyramid::rebuild(IplImageWrapper)'
    
 /home/huangng/lab/dense_trajectory_release_v1.1/DenseTrack.cpp:56: undefined reference to `IplImageWrapper::operator=(IplImageWrapper const&)'
    
 /home/huangng/lab/dense_trajectory_release_v1.1/DenseTrack.cpp:58: undefined reference to `IplImageWrapper::operator=(IplImageWrapper const&)'
    
 /home/huangng/lab/dense_trajectory_release_v1.1/DenseTrack.cpp:60: undefined reference to `IplImageWrapper::operator=(IplImageWrapper const&)'
    
 /home/huangng/lab/dense_trajectory_release_v1.1/DenseTrack.cpp:62: undefined reference to `IplImageWrapper::operator=(IplImageWrapper const&)'
    
 /home/huangng/lab/dense_trajectory_release_v1.1/DenseTrack.cpp:68: undefined reference to `IplImagePyramid::rebuild(IplImageWrapper)'
    
 .build_release/DenseTrack.o: In function `IplImagePyramid':
    
 /home/huangng/lab/dense_trajectory_release_v1.1/./opencv/IplImagePyramid.hpp:34: undefined reference to `IplImagePyramid::init(CvSize, int, int, double)'
    
 .build_release/DenseTrack.o: In function `__copy_m<const>&#39;:
    
 /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/bits/stl_algobase.h:343: undefined reference to `IplImageWrapper::operator=(IplImageWrapper const&amp;)&#39;
    
 .build_release/DenseTrack.o: In function `__copy_m&#39;:
    
 /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/bits/stl_algobase.h:343: undefined reference to `IplImageWrapper::operator=(IplImageWrapper const&amp;)&#39;
    
 collect2: ld returned 1 exit status
    
 make: *** [release/DenseTrack] Error 1
    
</const>

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