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  • Le plugin : Gestion de la mutualisation

    2 mars 2010, par

    Le plugin de Gestion de mutualisation permet de gérer les différents canaux de mediaspip depuis un site maître. Il a pour but de fournir une solution pure SPIP afin de remplacer cette ancienne solution.
    Installation basique
    On installe les fichiers de SPIP sur le serveur.
    On ajoute ensuite le plugin "mutualisation" à la racine du site comme décrit ici.
    On customise le fichier mes_options.php central comme on le souhaite. Voilà pour l’exemple celui de la plateforme mediaspip.net :
    < ?php (...)

  • 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 (...)

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

Sur d’autres sites (1676)

  • Decoding h264 in mp4 fragment from IIS Smooth Streaming

    30 novembre 2013, par Julian

    So I've decided to try and make my own client for IIS's Smooth Streaming as a learning exercise and I'm struggling to decode the mp4 fragments.

    I have the following fragment :
    http://www.mediafire.com/download/n32660d920g291c/part+1.mp4

    Which when I try to decode using ffmpeg :

    C:\>ffplay.exe -f h264 -vcodec h264 -g 52 "part 1.mp4"
    
ffplay version N-58502-g738ebb4 Copyright (c) 2003-2013 the FFmpeg developers built on Nov 27 2013 22:09:34 with gcc 4.8.2 (GCC)
    
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis--enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 55.100 / 52. 55.100
    
  libavcodec     55. 44.100 / 55. 44.100
    
  libavformat    55. 21.102 / 55. 21.102
    
  libavdevice    55.  5.102 / 55.  5.102
    
  libavfilter     3. 91.100 /  3. 91.100
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
[h264 @ 0000000001e58260] non-existing PPS referenced    0B f=0/0
    
[h264 @ 0000000001e58260] non-existing PPS 25 referenced
    
[h264 @ 0000000001e58260] decode_slice_header error
    
[h264 @ 0000000001e58260] Invalid mix of idr and non-idr slices
    
[h264 @ 0000000001e58260] sps_id out of range
    
    Last message repeated 4 times
    
[h264 @ 0000000001e58260] non-existing PPS referenced
    
[h264 @ 0000000001e58260] sps_id out of range
    
    Last message repeated 4 times
    
[h264 @ 0000000001e58260] slice type too large (24) at 0 0
    
[h264 @ 0000000001e58260] decode_slice_header error
    
[h264 @ 0000000001e58260] no frame!
    
[h264 @ 0000000001e4fa00] decoding for stream 0 failed
    
[h264 @ 0000000001e4fa00] Could not find codec parameters for stream 0 (Video: h264): unspecified size
    
Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
    
part 1.mp4: could not find codec parameters

    After reading I found the PPS/SPS comes from the CodecPrivateData in the manifest that IIS gives me, which I have as :

    000000016764001eacd940a03da10005161501312d000f162d960000000168ebe3cb22c0

    Binary : http://www.mediafire.com/download/hm3av6h3i1g7ojf/CodecPrivateData

    Which I think is annex b 00000001[SPS]00000001[PPS] but I have no idea what to do with it, I've tried putting it at the beginning of the file but get the same error, I also tried taking just the data in the mdat and sending that to ffmpeg but I get

    [h264 @ 0000000001da8a80] sps_id out of range 0KB sq=    0B f=0/0
    
[h264 @ 0000000001da8a80] non-existing PPS referenced
    
[h264 @ 0000000001da8a80] sps_id out of range
    
[h264 @ 0000000001da8a80] slice type too large (24) at 0 0
    
[h264 @ 0000000001da8a80] decode_slice_header error
    
[h264 @ 0000000001da8a80] no frame!
    
[h264 @ 0000000001d9fa00] decoding for stream 0 failed
    
[h264 @ 0000000001d9fa00] Could not find codec parameters for stream 0 (Video: h264): unspecified size
    
Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
    
part 1 - Copy.mp4: could not find codec parameters

    So I then tried putting the CodecPrivateData just before the mdat section and I then get this

    [h264 @ 0000000001d38a80] sps_id out of range 0KB sq=    0B f=0/0
    
    Last message repeated 1 times
    
[h264 @ 0000000001d38a80] slice type too large (24) at 0 0
    
[h264 @ 0000000001d38a80] decode_slice_header error
    
[h264 @ 0000000001d38a80] no frame!
    
[h264 @ 0000000001d2fa00] decoding for stream 0 failed
    
[h264 @ 0000000001d2fa00] Could not find codec parameters for stream 0 (Video: h264 (High)): unspecified size
    
Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
    
part 1 - Copy.mp4: could not find codec parameters

    I seem to be missing something to get this to decode and I'm just not sure what so I'm hoping someone knowledgeable with h264 can help me out ! Ultimately I want to get this working in DirectShow but even getting it to work in ffmpeg would be a massive help !

  • I got a green overlay in my video when using multiply blend mode in ffmpeg [on hold]

    30 avril 2014, par GJG

    i´m trying to blend two videos with the multiply blend mode. But I got a green overlay in the resulting video.

    This is a image where are one frame of each input video and one frame of the resulting video
    Composition

    I got this script, this is extracted from a part of my code :

    #!/bin/bash
    
ffmpeg -y -i video_top.avi -i video_background.mp4 -filter_complex "blend=all_mode=multiply" -f mp4 -vcodec libx264 out.mp4

    This is the ffmpeg output :

    built on Mar 20 2014 14:51:45 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
    
configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3
    
libavutil      52. 67.100 / 52. 67.100
    
libavcodec     55. 52.102 / 55. 52.102
    
libavformat    55. 34.101 / 55. 34.101
    
libavdevice    55. 11.100 / 55. 11.100
    
libavfilter     4.  3.100 /  4.  3.100
    
libswscale      2.  5.102 /  2.  5.102
    
libswresample   0. 18.100 /  0. 18.100
    
libpostproc    52.  3.100 / 52.  3.100
    
Input #0, avi, from 'video_top.avi':
    
Metadata:
    
encoder         : Lavf54.29.104
    
Duration: 00:00:10.72, start: 0.000000, bitrate: 688 kb/s
    
Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuv420p, 704x576 [SAR 1:1 DAR 11:9], 682 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'video_background.mp4':
    
Metadata:
    
major_brand     : mp42
    
minor_version   : 0
    
compatible_brands: mp42mp41
    
creation_time   : 2014-04-29 12:51:17
    
Duration: 00:00:08.90, start: 0.033333, bitrate: 3417 kb/s
    
Stream #1:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 704x576 [SAR 1:1 DAR 11:9], 3408 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
    
Metadata:
    
  creation_time   : 2014-04-29 12:51:17
    
  handler_name    : ?Mainconcept Video Media Handler
    
[libx264 @ 0x2e42660] using SAR=1/1
    
[libx264 @ 0x2e42660] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x2e42660] profile High, level 3.0
    
[libx264 @ 0x2e42660] 264 - core 142 r2 d6b4e63 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'out.mp4':
    
Metadata:
    
encoder         : Lavf55.34.101
    
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 704x576 [SAR 1:1 DAR 11:9], q=-1--1, 12800 tbn, 25 tbc (default)
    
Stream mapping:
    
Stream #0:0 (h264) -> blend:top
    
Stream #1:0 (h264) -> blend:bottom
    
blend -> Stream #0:0 (libx264)
    
Press [q] to stop, [?] for help
    
frame=  268 fps=121 q=-1.0 Lsize=     732kB time=00:00:10.64 bitrate= 563.2kbits/s
    
video:728kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.539149%
    
[libx264 @ 0x2e42660] frame I:2     Avg QP:17.96  size: 35789
    
[libx264 @ 0x2e42660] frame P:77    Avg QP:21.68  size:  5552
    
[libx264 @ 0x2e42660] frame B:189   Avg QP:24.79  size:  1298
    
[libx264 @ 0x2e42660] consecutive B-frames:  1.1% 11.2% 10.1% 77.6%
    
[libx264 @ 0x2e42660] mb I  I16..4: 30.7% 36.5% 32.7%
    
[libx264 @ 0x2e42660] mb P  I16..4:  3.0%  2.6%  0.4%  P16..4: 41.3% 14.4%  6.6%  0.0%  0.0%    skip:31.7%
    
[libx264 @ 0x2e42660] mb B  I16..4:  0.2%  0.1%  0.0%  B16..8: 43.8%  2.8%  0.3%  direct: 0.2%  skip:52.5%  L0:42.2% L1:56.1% BI: 1.7%
    
[libx264 @ 0x2e42660] 8x8 transform intra:40.7% inter:79.1%
    
[libx264 @ 0x2e42660] coded y,uvDC,uvAC intra: 48.9% 29.0% 8.3% inter: 7.1% 4.5% 0.1%
    
[libx264 @ 0x2e42660] i16 v,h,dc,p: 23% 19% 33% 26%
    
[libx264 @ 0x2e42660] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 15% 45%  3%  3%  3%  5%  3%  6%
    
[libx264 @ 0x2e42660] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 23% 19%  4%  3%  3%  7%  2%  7%
    
[libx264 @ 0x2e42660] i8c dc,h,v,p: 67% 15% 16%  1%
    
[libx264 @ 0x2e42660] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x2e42660] ref P L0: 67.4% 10.1% 17.0%  5.6%
    
[libx264 @ 0x2e42660] ref B L0: 91.6%  7.3%  1.1%
    
[libx264 @ 0x2e42660] ref B L1: 94.9%  5.1%
    
[libx264 @ 0x2e42660] kb/s:555.48

    I don’t know what is wrong, and using others blend modes got others ridiculous results, like having a pink overlay in the video.

    Suggestions will be well appreciated, thanks very much.

  • error when converting mts to mp4

    6 janvier 2015, par Chan Kim

    I have many video files that I want to convert to mp4.
    so I installed ffmpeg on my win7 PC (64 bit) which is using shared library.
    I tried to convert an MTS file to MP4 and I get this error.
    What is the problem ?

    $ ffmpeg -i 20140806114251.MTS 20140806114251.mp4
    
ffmpeg version N-68788-g37b35fe Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Dec 30 2014 22:18:55 with gcc 4.9.2 (GCC)
    
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      54. 15.100 / 54. 15.100
    
  libavcodec     56. 19.100 / 56. 19.100
    
  libavformat    56. 16.102 / 56. 16.102
    
  libavdevice    56.  3.100 / 56.  3.100
    
  libavfilter     5.  6.100 /  5.  6.100
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mpegts, from '20140806114251.MTS':
    
  Duration: 00:00:19.04, start: 1.033367, bitrate: 16273 kb/s
    
  Program 1
    
    Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    
    Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 448 kb/s
    
    Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
    
[libx264 @ 0000000002b60a20] using SAR=1/1
    
[libx264 @ 0000000002b60a20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0000000002b60a20] profile High, level 4.0
    
[libx264 @ 0000000002b60a20] 264 - core 144 r2525 40bb568 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
[libvo_aacenc @ 00000000028a4020] Unable to set encoding parameters
    
Output #0, mp4, to '20140806114251.mp4':
    
    Stream #0:0: Video: h264 (libx264), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 29.97 tbn, 29.97 tbc
    
    Metadata:
    
      encoder         : Lavc56.19.100 libx264
    
    Stream #0:1: Audio: aac, 0 channels, 128 kb/s
    
    Metadata:
    
      encoder         : Lavc56.19.100 libvo_aacenc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (ac3 (native) -> aac (libvo_aacenc))
    
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

    EDIT : I thought I solved this problem by using

    ffmpeg -i filename1.mts filename1.mkv

    my Samsung LED TV supports mkv file and during the conversion, it shows

      Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (ac3 (native) -> vorbis (libvorbis))

    But Alas ! my TV doesn’t support vorbis codec. It only supports mp3, ac3, lpcm, and ADPCM when using mkv container. So the question is : How do people select output audio codec ?

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