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Autres articles (109)

  • 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.

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Les sons

    15 mai 2013, par

Sur d’autres sites (12033)

  • How to demux an MP4 video and get its segments ? [on hold]

    21 août 2019, par zergon321

    I have an MP4 video. I want to demux it and then get its segments to have an mpd file like this. How to do it with MP4Box or ffmpeg ?

  • ffmpeg works with laptop webcam but not with android camera

    28 février 2023, par Rajkumar Somasundaram

    I am working on Macbook with M1 Chip with this ffmpeg version locally installed.

    


    ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers 
built with Apple clang version 14.0.0 (clang-1400.0.29.202)


    


    With this, I am able to use my laptop's webcam as input and do my ffmpeg work.

    


    Following command is what worked (avfoundation was needed for OSX)

    


    ffmpeg -f avfoundation -framerate 30 -i 0:0 \
-map 0:v:0 -map 0:a:0 \
-pix_fmt yuv420p \
-c:v libx264 -profile:v high \
-crf 32 -ar 44100 \
-c:a aac \
-filter:v:0 scale=w=480:h=360 \
-utc_timing_url "https://time.akamai.com/?iso" \
-segment_time 8 \
-f dash ${path.join(__dirname, "/output/sample.mpd")}


    


    Now, I am trying to use my android front camera as an input.

    


    But, it is not working. (Errors are mainly in & around camera_index)

    


    I am trying the following command and facing error.

    


    ffmpeg -f android_camera -camera_index 0 -framerate 30 -map 0:v -map 0:a -c:v\
libx264 -profile:v high -c:a aac -filter:v:0 scale=w=480:h=360 \
-utc_timing_url "https://time.akamai.com/?iso" -segment_time 8 \
-f dash ${path.join(__dirname, "/output/sample.mpd")}


    


    This is the stacktrace of the whole error log : https://www.diffchecker.com/Mnnghg7M/

    


      

    1. What is the correct command for android camera as input ?

      2. 


    2. Do all stable versions of ffmpeg work with android or any limitations ?

      3. 


    


  • avformat/matroskaenc : Don't waste bytes on length fields

    29 décembre 2019, par Andreas Rheinhardt
    avformat/matroskaenc : Don't waste bytes on length fields

    Several EBML Master elements for which a good upper bound of the final
    
length was available were nevertheless written without giving an
    
upper bound of the final length to start_ebml_master(), so that their
    
length fields were eight bytes long. This has been changed.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
    • [DH] libavformat/matroskaenc.c
    • [DH] tests/fate/wavpack.mak
    • [DH] tests/ref/fate/aac-autobsf-adtstoasc
    • [DH] tests/ref/fate/matroska-flac-extradata-update
    • [DH] tests/ref/fate/rgb24-mkv
    • [DH] tests/ref/fate/webm-dash-chapters
    • [DH] tests/ref/lavf-fate/av1.mkv
    • [DH] tests/ref/lavf/mka
    • [DH] tests/ref/lavf/mkv
    • [DH] tests/ref/lavf/mkv_attachment
    • [DH] tests/ref/seek/lavf-mkv

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