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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Submit bugs and patches

    13 avril 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 (...)

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  • Correections for comments.

    28 juin 2014, par Erik de Castro Lopo
    Correections for comments.
    

    Patch-from : lvqcl <lvqcl.mail@gmail.com>

    • [DH] src/libFLAC/lpc.c
    • [DH] src/share/grabbag/replaygain.c
    • [DH] src/share/replaygain_analysis/replaygain_analysis.c
  • SIMD : remove outdated SSE2 code

    21 février 2017, par Erik de Castro Lopo
    SIMD : remove outdated SSE2 code
    

    Removes FLAC__lpc_restore_signal_16_intrin_sse2() which was faster
    than than C code, but not faster than MMX-accelerated ASM functions.
    It’s also slower than the new SSE4.1 functions that were added by
    the previous patch.

    Patch-from : lvqcl <lvqcl.mail@gmail.com>

    • [DH] src/libFLAC/include/private/lpc.h
    • [DH] src/libFLAC/lpc_intrin_sse2.c
    • [DH] src/libFLAC/stream_decoder.c
  • libFLAC : Add a workaround for a bug in MSVC2105 update2

    5 mai 2016, par Erik de Castro Lopo
    libFLAC : Add a workaround for a bug in MSVC2105 update2
    

    MSVC2105 update2 compiles the C code :

    abs_residual_partition_sums[partition] =
    (FLAC__uint32)_mm_cvtsi128_si32(mm_sum) ;

    into this :

    movq QWORD PTR [rsi], xmm2

    while it should be :

    movd eax, xmm2
    mov QWORD PTR [rsi], rax

    With this patch, MSVC emits :

    movq QWORD PTR [rsi], xmm2
    mov DWORD PTR [rsi+4], r9d

    so the price of this workaround is 1 extra write instruction per
    partition.

    Patch-from : lvqcl <lvqcl.mail@gmail.com>

    • [DH] src/libFLAC/stream_encoder_intrin_avx2.c
    • [DH] src/libFLAC/stream_encoder_intrin_sse2.c
    • [DH] src/libFLAC/stream_encoder_intrin_ssse3.c