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  • Pas question de marché, de cloud etc...

    10 avril 2011

    Le vocabulaire utilisé sur ce site essaie d’éviter toute référence à la mode qui fleurit allègrement
    sur le web 2.0 et dans les entreprises qui en vivent.
    Vous êtes donc invité à bannir l’utilisation des termes "Brand", "Cloud", "Marché" etc...
    Notre motivation est avant tout de créer un outil simple, accessible à pour tout le monde, favorisant
    le partage de créations sur Internet et permettant aux auteurs de garder une autonomie optimale.
    Aucun "contrat Gold ou Premium" n’est donc prévu, aucun (...)

  • Activation de l’inscription des visiteurs

    12 avril 2011, par

    Il est également possible d’activer l’inscription des visiteurs ce qui permettra à tout un chacun d’ouvrir soit même un compte sur le canal en question dans le cadre de projets ouverts par exemple.
    Pour ce faire, il suffit d’aller dans l’espace de configuration du site en choisissant le sous menus "Gestion des utilisateurs". Le premier formulaire visible correspond à cette fonctionnalité.
    Par défaut, MediaSPIP a créé lors de son initialisation un élément de menu dans le menu du haut de la page menant (...)

  • (Dés)Activation de fonctionnalités (plugins)

    18 février 2011, par

    Pour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
    SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
    Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
    MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...)

Sur d’autres sites (10407)

  • FFMPEG convert webm to mp4 not working

    4 octobre 2014, par RussellHarrower

    I have upgrade to the latest ffmpeg which supports webm, but I cant seem to convert webm to mp4

    ffmpeg -i filea.webM -sameq filea.flv

    I am getting this error

    swScaler: Unknown format is not supported as input pixel format
    
Cannot get resampling context

    Not sure what to do. Please help

  • FFmpeg for iOS5

    7 juin 2013, par brad_roush

    Has anyone been able to compile ffmpeg libraries using the iOS5 sdk ? I have found scripts that use the 4.3 sdk but nothing for iOS5. I would assume that libraries built with the old sdk and armv7 will still be compatible for iOS 5.

    Here is the command I am trying to use :

    ./configure \ --cc=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc \ --as='gas-preprocessor.pl /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc' \ --sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk \ --extra-ldflags=-L/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk/usr/lib/system \ --target-os=darwin \ --arch=arm \ --cpu=cortex-a8 \ --extra-cflags='-arch armv7' \ --extra-ldflags='-arch armv7' \ --prefix=compiled/armv7 \ --enable-pic \ --enable-cross-compile \ --disable-armv5te \ --disable-ffmpeg \ --disable-ffplay \ --disable-ffserver \ --disable-ffprobe \ --disable-doc

    I have also tried using a script like this one :

    #!/bin/tcsh -f
    

    
if (! -d armv7) mkdir armv7
    
if (! -d lib) mkdir lib
    

    
rm armv7/*.a
    

    
make clean
    

    
./configure --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffserver --enable-cross-compile --arch=arm --target-os=darwin --cc=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --as='gas-preprocessor/gas-preprocessor.pl /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc' --sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk --cpu=cortex-a8 --extra-cflags='-arch armv7' --extra-ldflags='-arch armv7' --enable-pic
    

    
make
    

    
mv libavcodec/libavcodec.a armv7/
    
mv libavdevice/libavdevice.a armv7/
    
mv libavformat/libavformat.a armv7/
    
mv libavutil/libavutil.a armv7/
    
mv libswscale/libswscale.a armv7/
    

    
rm lib/*.a
    

    
cp armv7/*.a lib/

    I have also tried to switch to the gcc-4.2 as well as the llvm-gcc-4.2. However I get an "Unknown option" error shown below in the comments.

    Any info will be great and thanks.

  • How to integrate Netflix audio isma and video ismv files into a single file ?

    25 juillet 2012, par Ωmega

    Having Netflix audio .isma file and video .ismv file, how can be those separate files be integrated into a single .mp4 or .flv file ? Is there some schema or algorithm that can be used to develop such a tool, or is there already a tool available ?

    I tried to use ffmpeg as follows :

    # ffmpeg -i in.isma -i in.ismv out.mp4
    
ffmpeg version N-42856-g3ccf22c Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Jul 24 2012 14:59:19 with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-52)
    
  configuration: 
    
  libavutil      51. 65.100 / 51. 65.100
    
  libavcodec     54. 44.100 / 54. 44.100
    
  libavformat    54. 20.100 / 54. 20.100
    
  libavdevice    54.  2.100 / 54.  2.100
    
  libavfilter     3.  3.100 /  3.  3.100
    
  libswscale      2.  1.100 /  2.  1.100
    
  libswresample   0. 15.100 /  0. 15.100
    
[aac @ 0x98c9ee0] Reserved bit set.
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.isma':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isomiso2dashiso6piff
    
    creation_time   : 1941-03-31 12:20:24
    
  Duration: 00:48:39.59, start: 0.000000, bitrate: 67 kb/s
    
    Stream #0:0(und): Audio: aac (enca / 0x61636E65), 24000 Hz, mono, s16, 62 kb/s
    
    Metadata:
    
      creation_time   : 1941-03-31 12:20:24
    
      handler_name    : Audio Media Handler
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x98cb020] Could not find codec parameters for stream 0 (Video: none (encv / 0x76636E65), 320x240, 233 kb/s): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
in.ismv: could not find codec parameters

    Even there is no audio error shown in the above response, I was unable to convert the single audio .isma file into mp3 or other audio format file. I assume these isma/ismv files are somehow crypted or encoded in non-standard format. Below is a partial dump of audio file.

    00000000  ...$ftypmp42....isomiso2  00 00 00 24 | 66 74 79 70 | 6D 70 34 32 | 00 00 00 00 | 69 73 6F 6D | 69 73 6F 32
    
00000018  dashiso6piff...luuidNetf  64 61 73 68 | 69 73 6F 36 | 70 69 66 66 | 00 00 00 6C | 75 75 69 64 | 4E 65 74 66
    
00000030  lixPiffStrm!.........wªÔ  6C 69 78 50 | 69 66 66 53 | 74 72 6D 21 | 01 00 00 00 | 00 00 00 00 | 01 77 AA D4
    
00000048  .....˜–€....Ì6Ê«......·û  00 00 00 00 | 00 98 96 80 | 00 00 00 06 | CC 36 CA AB | 00 00 00 00 | 00 00 B7 FB
    
00000060  .....v†»......KK..l°....  00 00 00 00 | 01 76 86 BB | 00 00 00 00 | 00 00 4B 4B | 00 00 6C B0 | 00 00 00 00
    
00000078  ...³..D˜øcÌ_Š7jˆ‘E>"..Þ}  00 00 06 B3 | 00 00 44 98 | F8 63 CC 5F | 8A 37 6A 88 | 91 45 3E 22 | 02 1B DE 7D
    
00000090  ...nuuid¯3¡ª´%E‘%ÔÚz2ÿ.   00 00 00 6E | 75 75 69 64 | AF 33 A1 90 | AA B4 25 45 | 91 25 D4 DA | 7A 32 FF 05
    
000000A8  ......./È[<?þÿ.N.e.t.f.l  00 00 00 00 | 00 00 01 2F | C8 5B 3C 3F | FE FF 00 4E | 00 65 00 74 | 00 66 00 6C
    
000000C0  .i.x. .M.e.d.i.a. .L.i.b  00 69 00 78 | 00 20 00 4D | 00 65 00 64 | 00 69 00 61 | 00 20 00 4C | 00 69 00 62
    
000000D8  .r.a.r.y. .V.e.r.s.i.o.n  00 72 00 61 | 00 72 00 79 | 00 20 00 56 | 00 65 00 72 | 00 73 00 69 | 00 6F 00 6E
    
000000F0  . .1.2...3.8.....µmoov..  00 20 00 31 | 00 32 00 2E | 00 33 00 38 | 00 2E 00 00 | 05 B5 6D 6F | 6F 76 00 00
    
00000108  .xmvhd........Ééó.....Éé  00 78 6D 76 | 68 64 01 00 | 00 00 00 00 | 00 00 C9 E9 | F3 08 00 00 | 00 00 C9 E9
    
00000120  ó..˜–€....Ì6Ê«..........  F3 08 00 98 | 96 80 00 00 | 00 06 CC 36 | CA AB 00 01 | 00 00 01 00 | 00 00 00 00
    
00000138  ........................  00 00 00 00 | 00 00 00 01 | 00 00 00 00 | 00 00 00 00 | 00 00 00 00 | 00 00 00 01
    
00000150  ..............@.........  00 00 00 00 | 00 00 00 00 | 00 00 00 00 | 00 00 40 00 | 00 00 00 00 | 00 00 00 00
    
00000168  ........................  00 00 00 00 | 00 00 00 00 | 00 00 00 00 | 00 00 00 00 | 00 00 00 00 | 00 02 00 00
    
00000180  .&pssh....š.ðy˜@B†«’æ[àˆ  02 26 70 73 | 73 68 00 00 | 00 00 9A 04 | F0 79 98 40 | 42 86 AB 92 | E6 5B E0 88
    
00000198  _•............ü.<.W.R.M.  5F 95 00 00 | 02 06 06 02 | 00 00 01 00 | 01 00 FC 01 | 3C 00 57 00 | 52 00 4D 00
    
000001B0  H.E.A.D.E.R. .x.m.l.n.s.  48 00 45 00 | 41 00 44 00 | 45 00 52 00 | 20 00 78 00 | 6D 00 6C 00 | 6E 00 73 00
    
000001C8  =.".h.t.t.p.:././.s.c.h.  3D 00 22 00 | 68 00 74 00 | 74 00 70 00 | 3A 00 2F 00 | 2F 00 73 00 | 63 00 68 00
    
000001E0  e.m.a.s...m.i.c.r.o.s.o.  65 00 6D 00 | 61 00 73 00 | 2E 00 6D 00 | 69 00 63 00 | 72 00 6F 00 | 73 00 6F 00
    
000001F8  f.t...c.o.m./.D.R.M./.2.  66 00 74 00 | 2E 00 63 00 | 6F 00 6D 00 | 2F 00 44 00 | 52 00 4D 00 | 2F 00 32 00
    
00000210  0.0.7./.0.3./.P.l.a.y.R.  30 00 30 00 | 37 00 2F 00 | 30 00 33 00 | 2F 00 50 00 | 6C 00 61 00 | 79 00 52 00
    
00000228  e.a.d.y.H.e.a.d.e.r.". .  65 00 61 00 | 64 00 79 00 | 48 00 65 00 | 61 00 64 00 | 65 00 72 00 | 22 00 20 00
    
00000240  v.e.r.s.i.o.n.=.".4...0.  76 00 65 00 | 72 00 73 00 | 69 00 6F 00 | 6E 00 3D 00 | 22 00 34 00 | 2E 00 30 00
    
00000258  ..0...0.".>.<.D.A.T.A.>.  2E 00 30 00 | 2E 00 30 00 | 22 00 3E 00 | 3C 00 44 00 | 41 00 54 00 | 41 00 3E 00
    
00000270  <.P.R.O.T.E.C.T.I.N.F.O.  3C 00 50 00 | 52 00 4F 00 | 54 00 45 00 | 43 00 54 00 | 49 00 4E 00 | 46 00 4F 00
    
00000288  >.<.K.E.Y.L.E.N.>.1.6.<.  3E 00 3C 00 | 4B 00 45 00 | 59 00 4C 00 | 45 00 4E 00 | 3E 00 31 00 | 36 00 3C 00
    
000002A0  /.K.E.Y.L.E.N.>.<.A.L.G.  2F 00 4B 00 | 45 00 59 00 | 4C 00 45 00 | 4E 00 3E 00 | 3C 00 41 00 | 4C 00 47 00
    
000002B8  I.D.>.A.E.S.C.T.R.<./.A.  49 00 44 00 | 3E 00 41 00 | 45 00 53 00 | 43 00 54 00 | 52 00 3C 00 | 2F 00 41 00
    
000002D0  L.G.I.D.>.<./.P.R.O.T.E.  4C 00 47 00 | 49 00 44 00 | 3E 00 3C 00 | 2F 00 50 00 | 52 00 4F 00 | 54 00 45 00
    
000002E8  C.T.I.N.F.O.>.<.K.I.D.>.  43 00 54 00 | 49 00 4E 00 | 46 00 4F 00 | 3E 00 3C 00 | 4B 00 49 00 | 44 00 3E 00
    
00000300  A.A.A.A.A.D.k.6./.w.A.A.  41 00 41 00 | 41 00 41 00 | 41 00 44 00 | 6B 00 36 00 | 2F 00 77 00 | 41 00 41 00
    
00000318  A.A.A.A.A.A.A.A.A.A.=.=.  41 00 41 00 | 41 00 41 00 | 41 00 41 00 | 41 00 41 00 | 41 00 41 00 | 3D 00 3D 00
    
00000330  <./.K.I.D.>.<.C.H.E.C.K.  3C 00 2F 00 | 4B 00 49 00 | 44 00 3E 00 | 3C 00 43 00 | 48 00 45 00 | 43 00 4B 00
    
00000348  S.U.M.>.v.R.W.D.3.9.D.o.  53 00 55 00 | 4D 00 3E 00 | 76 00 52 00 | 57 00 44 00 | 33 00 39 00 | 44 00 6F 00
    
00000360  7.K.Y.=.<./.C.H.E.C.K.S.  37 00 4B 00 | 59 00 3D 00 | 3C 00 2F 00 | 43 00 48 00 | 45 00 43 00 | 4B 00 53 00
    
00000378  U.M.>.<./.D.A.T.A.>.<./.  55 00 4D 00 | 3E 00 3C 00 | 2F 00 44 00 | 41 00 54 00 | 41 00 3E 00 | 3C 00 2F 00
    
00000390  W.R.M.H.E.A.D.E.R.>....L  57 00 52 00 | 4D 00 48 00 | 45 00 41 00 | 44 00 45 00 | 52 00 3E 00 | 00 00 00 4C
    
000003A8  pssh....)p.ä<ÇJ4Œ[®ÇCšG   70 73 73 68 | 00 00 00 00 | 29 70 1F E4 | 3C C7 4A 34 | 8C 5B AE 90 | C7 43 9A 47
    
000003C0  ...,........9:ÿ.ò...û¡.Ù  00 00 00 2C | 00 00 00 04 | 00 00 00 00 | 39 3A FF 00 | F2 1E 01 1A | FB A1 13 D9
    
000003D8  n.N®Á7.Üý\8ªv̬.øÀß‹½¸«¾  6E 1A 4E AE | C1 37 11 DC | FD 5C 38 AA | 76 CC AC 08 | F8 C0 DF 8B | BD B8 AB BE
    
000003F0  ...‡trak...htkhd........  00 00 02 87 | 74 72 61 6B | 00 00 00 68 | 74 6B 68 64 | 01 00 00 07 | 00 00 00 00
    
00000408  Ééó.....Ééó.............  C9 E9 F3 08 | 00 00 00 00 | C9 E9 F3 08 | 00 00 00 01 | 00 00 00 00 | 00 00 00 06
    
00000420  Ì6Ê«....................  CC 36 CA AB | 00 00 00 00 | 00 00 00 00 | 00 00 00 00 | 01 00 00 00 | 00 01 00 00
    
00000438  ........................  00 00 00 00 | 00 00 00 00 | 00 00 00 00 | 00 01 00 00 | 00 00 00 00 | 00 00 00 00
    
00000450  ....@...............mdia  00 00 00 00 | 40 00 00 00 | 00 00 00 00 | 00 00 00 00 | 00 00 02 17 | 6D 64 69 61
    
00000468  ...,mdhd........Ééó.....  00 00 00 2C | 6D 64 68 64 | 01 00 00 00 | 00 00 00 00 | C9 E9 F3 08 | 00 00 00 00
    
00000480  Ééó...]À.....-0.UÄ.....4  C9 E9 F3 08 | 00 00 5D C0 | 00 00 00 00 | 04 2D 30 00 | 55 C4 00 00 | 00 00 00 34
    
00000498  hdlr........soun........  68 64 6C 72 | 00 00 00 00 | 00 00 00 00 | 73 6F 75 6E | 00 00 00 00 | 00 00 00 00
    
000004B0  ....Audio Media Handler.  00 00 00 00 | 41 75 64 69 | 6F 20 4D 65 | 64 69 61 20 | 48 61 6E 64 | 6C 65 72 00
    
000004C8  ...¯minf....smhd........  00 00 01 AF | 6D 69 6E 66 | 00 00 00 10 | 73 6D 68 64 | 00 00 00 00 | 00 00 00 00
    
000004E0  ...$dinf....dref........  00 00 00 24 | 64 69 6E 66 | 00 00 00 1C | 64 72 65 66 | 00 00 00 00 | 00 00 00 01
    
000004F8  ....url .......sstbl....  00 00 00 0C | 75 72 6C 20 | 00 00 00 01 | 00 00 01 73 | 73 74 62 6C | 00 00 00 10
    
00000510  stts............ctts....  73 74 74 73 | 00 00 00 00 | 00 00 00 00 | 00 00 00 10 | 63 74 74 73 | 00 00 00 00
    
00000528  ........stsd............  00 00 00 00 | 00 00 01 17 | 73 74 73 64 | 00 00 00 00 | 00 00 00 01 | 00 00 01 07
    
00000540  enca....................  65 6E 63 61 | 00 00 00 00 | 00 00 00 01 | 00 00 00 00 | 00 00 00 00 | 00 02 00 10
    
00000558  ....]À.....`sinf....frma  00 00 00 00 | 5D C0 00 00 | 00 00 00 60 | 73 69 6E 66 | 00 00 00 0C | 66 72 6D 61
    
00000570  mp4a....schm....piff....  6D 70 34 61 | 00 00 00 14 | 73 63 68 6D | 00 00 00 00 | 70 69 66 66 | 00 01 00 01
    
00000588  ...8schi...0uuid‰tÛÎ{çLQ  00 00 00 38 | 73 63 68 69 | 00 00 00 30 | 75 75 69 64 | 89 74 DB CE | 7B E7 4C 51
    
000005A0  „ùqHùˆ%T............9:ÿ.  84 F9 71 48 | F9 88 25 54 | 00 00 00 00 | 00 00 01 08 | 00 00 00 00 | 39 3A FF 00
    
000005B8  ...........Psinf....frma  00 00 00 00 | 00 00 00 00 | 00 00 00 50 | 73 69 6E 66 | 00 00 00 0C | 66 72 6D 61
    
000005D0  mp4a....schm....cenc....  6D 70 34 61 | 00 00 00 14 | 73 63 68 6D | 00 00 00 00 | 63 65 6E 63 | 00 01 00 00
    
000005E8  ...(schi... tenc........  00 00 00 28 | 73 63 68 69 | 00 00 00 20 | 74 65 6E 63 | 00 00 00 00 | 00 00 01 08
    
00000600  ....9:ÿ............3esds  00 00 00 00 | 39 3A FF 00 | 00 00 00 00 | 00 00 00 00 | 00 00 00 33 | 65 73 64 73
    
00000618  .....€€€"....€€€.@...„..  00 00 00 00 | 03 80 80 80 | 22 00 00 00 | 04 80 80 80 | 14 40 15 00 | 02 84 00 01
    
00000630  Ô....Â.€€€....€€€......s  D4 05 00 01 | 06 C2 05 80 | 80 80 02 13 | 10 06 80 80 | 80 01 02 00 | 00 00 10 73
    
00000648  tsc............stsz.....  74 73 63 00 | 00 00 00 00 | 00 00 00 00 | 00 00 14 73 | 74 73 7A 00 | 00 00 00 00
    
00000660  ...........stco.........  00 00 00 00 | 00 00 00 00 | 00 00 10 73 | 74 63 6F 00 | 00 00 00 00 | 00 00 00 00
    
00000678  ..code>

    I will appreciate every usefull comment.

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