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  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • 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 (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

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  • Revision 897192be43 : Added one more reference frame LAST2_FRAME Under the experiment CONFIG_MULTI_RE

    21 août 2015, par Zoe Liu

    Changed Paths :
     Modify /configure


     Modify /vp9/common/vp9_blockd.h


     Modify /vp9/common/vp9_entropymode.c


     Modify /vp9/common/vp9_entropymode.h


     Modify /vp9/common/vp9_enums.h


     Modify /vp9/common/vp9_loopfilter.h


     Modify /vp9/common/vp9_onyxc_int.h


     Modify /vp9/common/vp9_pred_common.c


     Modify /vp9/common/vp9_pred_common.h


     Modify /vp9/decoder/vp9_decodeframe.c


     Modify /vp9/decoder/vp9_decodemv.c


     Modify /vp9/decoder/vp9_decoder.c


     Modify /vp9/encoder/vp9_bitstream.c


     Modify /vp9/encoder/vp9_denoiser.c


     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_encoder.c


     Modify /vp9/encoder/vp9_encoder.h


     Modify /vp9/encoder/vp9_mcomp.c


     Modify /vp9/encoder/vp9_rd.c


     Modify /vp9/encoder/vp9_rd.h


     Modify /vp9/encoder/vp9_rdopt.c


     Modify /vpxenc.c



    Added one more reference frame LAST2_FRAME

    Under the experiment CONFIG_MULTI_REF. Current version shows
    LAST2 vs base in nextgen on the testset of derflr :

    (1) 8-bit : Average PSNR +0.53%
    (worst : students_cif : -0.247% ; best : mobile_cif : 1.902%)
    (2) 12-bit HBD : Average PSNR +0.63%
    (worst : pamphlet_cif : -0.213%, best : mobile_cif : 2.101%)

    More tuning on the reference frame context design and default
    probs are being conducted. This version does not guarantee to
    work with other experiments in nextgen. A separate CL will address
    the working with all other experiments.

    Change-Id : I7f40d2522517afc26ca389c995bad56989587f65

  • Revision 9fc691efbe : Backport EXT_TX experiment from nextgen Does not include DST1 yet. derflr : +1.

    3 septembre 2015, par Debargha Mukherjee

    Changed Paths :
     Modify /vp10/common/blockd.h


     Modify /vp10/common/entropy.h


     Modify /vp10/common/entropymode.c


     Modify /vp10/common/entropymode.h


     Modify /vp10/common/enums.h


     Modify /vp10/common/idct.c


     Modify /vp10/common/scan.c


     Modify /vp10/common/scan.h


     Modify /vp10/decoder/decodeframe.c


     Modify /vp10/decoder/decodemv.c


     Modify /vp10/encoder/bitstream.c


     Modify /vp10/encoder/bitstream.h


     Modify /vp10/encoder/encodeframe.c


     Modify /vp10/encoder/encodemb.c


     Modify /vp10/encoder/encoder.c


     Modify /vp10/encoder/encoder.h


     Modify /vp10/encoder/pickmode.c


     Modify /vp10/encoder/rd.c


     Modify /vp10/encoder/rdopt.c


     Modify /vp10/encoder/subexp.c


     Modify /vp10/encoder/subexp.h


     Modify /vp10/encoder/tokenize.c



    Backport EXT_TX experiment from nextgen

    Does not include DST1 yet.

    derflr : +1.437 (8-bit internal), +7.243 (12-bit internal)
    with —enable-ext-tx

    Change-Id : I91f1759fd2de794755eb6384cda52e80e979cb7d

  • Revision 625c0961ff : Adds supertx experiment adopted from playground Reimplements the supertx experi

    3 décembre 2014, par Deb Mukherjee

    Changed Paths :
     Modify /configure


     Modify /vp9/common/vp9_blockd.h


     Modify /vp9/common/vp9_common_data.c


     Modify /vp9/common/vp9_common_data.h


     Modify /vp9/common/vp9_entropymode.c


     Modify /vp9/common/vp9_entropymode.h


     Modify /vp9/common/vp9_loopfilter.c


     Modify /vp9/common/vp9_reconinter.c


     Modify /vp9/common/vp9_reconinter.h


     Modify /vp9/decoder/vp9_decodeframe.c


     Modify /vp9/decoder/vp9_decodemv.c


     Modify /vp9/decoder/vp9_decodemv.h


     Modify /vp9/encoder/vp9_bitstream.c


     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_encodemb.c


     Modify /vp9/encoder/vp9_encodemb.h


     Modify /vp9/encoder/vp9_encoder.c


     Modify /vp9/encoder/vp9_picklpf.c


     Modify /vp9/encoder/vp9_rdopt.c


     Modify /vp9/encoder/vp9_rdopt.h


     Modify /vp9/encoder/vp9_tokenize.c


     Modify /vp9/encoder/vp9_tokenize.h



    Adds supertx experiment adopted from playground

    Reimplements the supertx experiment from the playground branch.
    Makes it work with other experiments.

    Results :
    With —enable-superttx
    derflr : +0.958

    With —enable-supertx —enable-ext-tx
    derflr : +2.25%

    With —enable-supertx —enable-ext-tx —enable-filterintra
    derflr : +2.73%

    Change-Id : I5012418ef2556bf2758146d90c4e2fb8a14610c7

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