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Autres articles (36)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (6089)

  • ffmpeg, add static image to beginning and end with transitions

    14 mars 2021, par CreateChange

    ffmpeg noob here, trying to help my mother with some videos for real estate walkthroughs. I'd like to set up a simple pipeline that I can run videos through and have outputted as such :

    


      

    • 5 second (silent) title card ->

      • 


    • xfade transition ->

      • 


    • property walk through ->

      • 


    • xfade transition ->

      • 


    • 5 second (silent) title card

      • 


    


    Considerations :

    


      

    • The intro / outro card will be the same content.

      • 


    • The input walkthrough videos will be of variable length so, if possible, a dynamic solution accounting for this would be ideal. If this requires me to script something using ffprobe, I can do that - just need to gain an understanding of the syntax and order of operations.

      • 


    • The video clip will come in with some audio already overlaid. I would like for the title cards to be silent, and have the video/audio clip fade in/out together.

      • 


    


    I have gotten a sample working without the transitions :

    


    ffmpeg -loop 1 -t 5 -i title_card.jpg \
    -i walkthrough.MOV \
    -f lavfi -t 0.1 -i anullsrc \
    -filter_complex "[0][2][1:v][1:a][0][2]concat=n=3:v=1:a=1[v][a]" \
    -map "[v]" -map "[a]" \
    -vcodec libx265 \
    -crf 18 \
    -vsync 2 \
    output_without_transitions.mp4


    


    I have been unable to get it to work with transitions. See below for the latest iteration :

    


    ffmpeg -loop 1 -t 5 -r 60 -i title_card.jpg \
    -r 60 -i walkthrough.MOV \
    -f lavfi -t 0.1 -i anullsrc \
    -filter_complex \
    "[0][1:v]xfade=transition=fade:duration=0.5:offset=4.5[v01]; \
    [v01][0]xfade=transition=fade:duration=0.5:offset=12.8[v]" \
    -map "[v]" \
    -vcodec libx265 \
    -crf 18 \
    -vsync 2 \
    output_with_transitions.mp4


    


    This half-works, resulting in the initial title card, fading into the video, but the second title card never occurs. Note, I also removed any references to audio, in an effort to get the transitions alone to work.

    


    I have been beating my head against the wall on this, so help would be appreciated :)

    


  • build error while compiling ffmpeg for iOS with iFrameExtractor

    23 novembre 2011, par Michael Chen

    I meet some error with iFrameExtractor :

    lipo : specifed architecture type (i386) for file (i386/libavcodec.a)
    does not match its cputype (12) and cpusubtype (9) (should be cputype
    (7) and cpusubtype (3))

    My machine : Mac Book Air, Mac OSX Lion, XCode 4.2 with iOS5

    Please give me some help, thanks.

  • avformat.lib and VS2013

    27 février 2016, par KevinA

    I’m compiling FFmpeg statically against VS2013 update 5 using —toolchain=msvc

    If I link against avformat.lib i get a bunch of LNK2019 errors.
    I can link make calls against the other libraries(avcodec, swscale, avutil).

    Looking at the errors, it seems to be against all the networking .o’s (tls_schannel.o, networking.o, tcp.o, etc....)

    Here is the output

    error LNK2019: unresolved external symbol _QueryContextAttributesA@12 referenced in function _tls_write avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol _InitializeSecurityContextA@48 referenced in function _tls_client_handshake   avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol _FreeContextBuffer@4 referenced in function _tls_client_handshake avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol _EncryptMessage@16 referenced in function _tls_write  avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol _DecryptMessage@16 referenced in function _tls_read   avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol _AcquireCredentialsHandleA@36 referenced in function _tls_open    avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol __imp__WSAStartup@8 referenced in function _ff_network_init   avformat.lib(network.o)
    
error LNK2019: unresolved external symbol __imp__WSAGetLastError@0 referenced in function _ff_neterrno  avformat.lib(network.o)
    
error LNK2019: unresolved external symbol __imp__WSACleanup@0 referenced in function _ff_network_close  avformat.lib(network.o)
    
error LNK2019: unresolved external symbol __imp__socket@12 referenced in function _ff_socket    avformat.lib(network.o)
    
error LNK2019: unresolved external symbol __imp__shutdown@8 referenced in function _tcp_shutdown    avformat.lib(tcp.o)
    
error LNK2019: unresolved external symbol __imp__setsockopt@20 referenced in function _tcp_open avformat.lib(tcp.o)
    
error LNK2019: unresolved external symbol __imp__sendto@24 referenced in function _rtp_write    avformat.lib(rtpproto.o)
    
error LNK2019: unresolved external symbol __imp__send@16 referenced in function _tcp_write  avformat.lib(tcp.o)
    
error LNK2019: unresolved external symbol __imp__select@20 referenced in function _ff_poll  avformat.lib(os_support.o)
    
error LNK2019: unresolved external symbol __imp__recvfrom@24 referenced in function _rtp_read   avformat.lib(rtpproto.o)
    
error LNK2019: unresolved external symbol __imp__recv@16 referenced in function _tcp_read   avformat.lib(tcp.o)
    
error LNK2019: unresolved external symbol __imp__ntohs@4 referenced in function _get_port   avformat.lib(rtpproto.o)
    
error LNK2019: unresolved external symbol __imp__ntohl@4 referenced in function _ff_is_multicast_address    avformat.lib(network.o)
    
error LNK2019: unresolved external symbol __imp__listen@8 referenced in function _ff_listen avformat.lib(network.o)
    
error LNK2019: unresolved external symbol __imp__ioctlsocket@12 referenced in function _ff_socket_nonblock  avformat.lib(os_support.o)
    
error LNK2019: unresolved external symbol __imp__htons@4 referenced in function _set_port   avformat.lib(rtpproto.o)
    
error LNK2019: unresolved external symbol __imp__htonl@4 referenced in function _ff_inet_aton   avformat.lib(os_support.o)
    
error LNK2019: unresolved external symbol __imp__getsockopt@20 referenced in function _udp_open avformat.lib(udp.o)
    
error LNK2019: unresolved external symbol __imp__getsockname@12 referenced in function _rtp_read_header avformat.lib(rtsp.o)
    
error LNK2019: unresolved external symbol __imp__getpeername@12 referenced in function _ff_rtsp_connect avformat.lib(rtsp.o)
    
error LNK2019: unresolved external symbol __imp__getnameinfo@28 referenced in function _sdp_read_header avformat.lib(rtsp.o)
    
error LNK2019: unresolved external symbol __imp__gethostname@8 referenced in function _ff_rtp_parse_open    avformat.lib(rtpdec.o)
    
error LNK2019: unresolved external symbol __imp__FreeCredentialsHandle@4 referenced in function _tls_close  avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol __imp__DeleteSecurityContext@4 referenced in function _tls_close  avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol __imp__connect@12 referenced in function _udp_open    avformat.lib(udp.o)
    
error LNK2019: unresolved external symbol __imp__closesocket@4 referenced in function _tcp_close    avformat.lib(tcp.o)
    
error LNK2019: unresolved external symbol __imp__bind@12 referenced in function _udp_open   avformat.lib(udp.o)
    
error LNK2019: unresolved external symbol __imp__ApplyControlToken@8 referenced in function _tls_shutdown_client    avformat.lib(tls_schannel.o)
    
error LNK2019: unresolved external symbol __imp__accept@12 referenced in function _ff_accept    avformat.lib(network.o)
    
error LNK2019: unresolved external symbol ___WSAFDIsSet@8 referenced in function _ff_poll   avformat.lib(os_support.o)
    
error LNK2001: unresolved external symbol __imp__setsockopt@20  avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__setsockopt@20  avformat.lib(network.o)
    
error LNK2001: unresolved external symbol __imp__sendto@24  avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__send@16    avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__recv@16    avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__getsockopt@20  avformat.lib(network.o)
    
error LNK2001: unresolved external symbol __imp__getsockname@12 avformat.lib(sapenc.o)
    
error LNK2001: unresolved external symbol __imp__getsockname@12 avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__getnameinfo@28 avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__getnameinfo@28 avformat.lib(sdp.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(url.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(sdp.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(tls.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(rtsp.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(sapenc.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(rtpproto.o)
    
error LNK2001: unresolved external symbol __imp__getaddrinfo@16 avformat.lib(tcp.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(url.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(sdp.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(tls.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(rtsp.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(sapenc.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(rtpproto.o)
    
error LNK2001: unresolved external symbol __imp__freeaddrinfo@4 avformat.lib(tcp.o)
    
error LNK2001: unresolved external symbol __imp__connect@12 avformat.lib(network.o)
    
error LNK2001: unresolved external symbol __imp__closesocket@4  avformat.lib(udp.o)
    
error LNK2001: unresolved external symbol __imp__closesocket@4  avformat.lib(network.o)
    
error LNK2001: unresolved external symbol __imp__bind@12    avformat.lib(network.o)

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