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Autres articles (11)

  • 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 (...)

  • 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) (...)

  • 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 (...)

Sur d’autres sites (4114)

  • ios ffmpeg with support for floating-point ABI

    20 juin 2013, par user1881371

    How do I collect on ios ffmpeg with support for floating-point ABI ?

    I have an application that shows the video, but slow decoding.

    ffmpeg compiled without support for floating-point ABI

    ./configure --prefix=armv7 --disable-ffmpeg --disable-ffplay --disable-ffprobe 
    
--disable-ffserver --enable-avresample --enable-cross-compile 
    
--sysroot="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk" 
    
--target-os=darwin 
    
--cc="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc" 
    
--extra-cflags="-arch armv7 -mfpu=neon -mfloat-abi=hard 
    
-miphoneos-version-min=6.1" --extra-ldflags="-arch armv7 
    
-isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk -miphoneos-version-min=1.0" 
    
--arch=arm --cpu=cortex-a9 --enable-pic

    I always get a warning

    WARNING: Compiler does not indicate floating-point ABI, guessing soft.

    I have tried

    -mfloat-abi=hard

  • Adjusting video length to fit audio length in FFmpeg

    8 avril 2015, par Spreadys

    This has been driving me mad !
    I have video.avi, a raw uncompressed video with a duration of 6mins
    I have audio.wav, a raw uncompressed audio with a duration of 9mins

    I need to mux these together, but map the timing information from the audio.
    Using Vsync 2 I would hope that video frames get duplicated in order to do this.

    My current (failed) attempt is

    ffmpeg -i video.avi -i audio.wav
    - c:v rawvideo -c:a copy
    - vsync 2 -map 0:0,1:0 -map 1:0,1:0
    newvideo.avi

    My understanding is that the -map first designates what file:stream, and this is followed by the file:stream to be used for timing information.

    I have attempted all my usual research methods in an attempt to avoid asking but it is still resulting in the avi container holding two streams with the video length unchanged.
    If anyone can shed some light on my errors, I would be very grateful....or if you need further info - please ask !

    Thanks
    David

    Any guidance on what other information may promote some suggestions to where i’m going wrong also appreciated.
    Thanks

  • Multiple backslashes are not shown in Video

    26 février 2019, par Sebastian

    I want wo insert the text \ \ \ \ \ \ ' in a video. I escaped it to this

    -loglevel debug -y -i "in.mp4" -vf "[in] drawtext=fontfile=C\\\:\\\\Windows\\\\Fonts\\\\ariblk.ttf: text=\\\\ \\\\ \\\\ \\\\ \\\\ \\\\ \\\': fontsize=32 [out]" "out.mp4"

    The paths are read correctly, but no backslash is shown in the video. If I double the backslashes to \\ \\ \\ \\ \\ \\ ' I get the result I want with \ \ \ \ \ \ '

    -loglevel debug -y -i "in.mp4" -vf "[in] drawtext=fontfile=C\\\:\\\\Windows\\\\Fonts\\\\ariblk.ttf: text=\\\\\\\\ \\\\\\\\ \\\\\\\\ \\\\\\\\ \\\\\\\\ \\\\\\\\ \\\': fontsize=16 [out]" "out.mp4"

    The example from ffmpeg works.

    Which escape rule do I neglect ?

    Edit :
    Escaping the text to

    text='\\\\ \\\\ \\\\ \\\\ \\\\ \\\\ \\\'': fontsize=32 [out]

    or

    text=\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\ \\\\\': fontsize=32 [out]

    leads to an output of

    \ \ \ \ \ \: fontsize=32 [out]

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