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  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

  • 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.

  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

Sur d’autres sites (7248)

  • Cannot download m3u8 using ffmpeg

    8 avril 2019, par Vũ Tuấn Anh

    I want to download a mp4 from m3u8 link using ffmpeg command.

    ffmpeg -i https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8 -c copy -bsf:a aac_adtstoasc output1.mp4

    But an error occurred when loading first segment

    https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720/seg-1-v1-a1.ts?v=664e3521
    https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8: Invalid data found when processing input

    Someone helps me to solve my problem. Thanks !

    Full command

    ffmpeg -i https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8 -c copy -bsf:a aac_adtstoasc output2.mp4ffmpeg version 4.1.1-0york1~16.04 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
    
  configuration: --prefix=/usr --extra-version='0york1~16.04' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
[hls,applehttp @ 0x56551c942500] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720.m3u8?v=664e3521' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/480.m3u8?v=3f40a361' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/360.m3u8?v=aefcb682' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/240.m3u8?v=bda86a2a' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/144.m3u8?v=431e8038' for reading
    
[hls,applehttp @ 0x56551c942500] Opening 'https://kms.sohatv.vn/drm/55ceb3f8-4675-454a-bfc8-96cb04bbae8f.key' for reading
    
[hls,applehttp @ 0x56551c942500] Opening 'crypto+https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720/seg-1-v1-a1.ts?v=664e3521' for reading
    
[hls,applehttp @ 0x56551c942500] Error when loading first segment 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720/seg-1-v1-a1.ts?v=664e3521'
    
https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8: Invalid data found when processing input

  • FFMPEG - Download video in parts and concat, stutter at concat points

    23 juillet 2022, par rnbwSmn

    My goal is to download a video (or M3U8) in parts/chunks which I can later concat.

    


    For context, I would like to download videos in an Android Service which may be stopped at any time, so I think chunking is the right approach.

    


    After some time I got the "downloading the parts" right, using this. I would later put that in a function, and for now I chose the chunks to be 30 seconds long.

    


    %offset% = 30 * %part%

ffmpeg -ss %offset% -t 30 -i INPUT_FILE -avoid_negative_ts 1 out%part%.mp4


    


    The first line is just pseudocode, part is starting at 0.
This works fine, downloading 30 second long .mp4 files.

    


    After that I tried merging them together into a single .mp4. For the tests I only downloaded the first few parts.

    


    Concat command :

    


    ffmpeg -safe 0 -f concat -i concat.txt -c copy final.mp4


    


    This would be a very short concat.txt file :

    


    file 'out0.mp4'
file 'out1.mp4'


    


    The concat works but has one problem : At the point where both files are actually combined, so at 30 seconds, there is a small stutter in video and audio.

    


    So what I think is going on is that I download parts that are 30s long, starting at multiples of 30s so there is a small overlap ? In the "Details" part of the Windows file properties it also shows a length of 31 seconds, so the video is even longer than I want.

    


    I tried setting the duration of each part in the concat.txt, both to 30s and to 30s - 1 frame

    


    23.98 fps -> 1/23.98 spf = 0.0417s


    


    But with a duration of 30 as well as 29.9583, although it is better, there is still a small stutter.

    


    file 'out0.mp4'
duration 29.9583
file 'out1.mp4'
duration 29.9583


    


    I also tried with a different fileformat, .ts files, but the stutter was still there. I still think my timings are not quite right, but at this point I don't know where the problem is exactly. What do I need to change to remove the small stutter ?

    


  • How to download live streaming videos with HTTP .flv url

    20 février 2017, par Sajjad Darvishi

    I just wanted to record a live stream by downloading this link but it did’nt work by curl , ffmpeg and wget please help me how can i record this ?

    http://uhs-akamai.ustream.tv/dal09/dal09-uhs-live02/live/22505108/1487587571614/plain/uhs/1/chunk_1487590613_79324dc9f7.flv

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