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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 (2364)

  • ffmpeg concatenate image and audio to beginning of file

    18 mai 2017, par swg1cor14

    So I want to try and use the ffmpeg MAP command to do the following :

    Merge audio and jpg
    Concatenate mp4 to end

    Still.jpg
    
audio.mp3   ->    video.mp4     =    output.mp4

    Right now I have

    /home/admin/ffmpeg/ffmpeg -i still.jpg -i audio.mp3 render1.mp4

    But I want to also go ahead and add on the video.mp4 as well. I tried reading the map function but I’m so confused as to how you know how many streams a file has, etc

    Heres the output of the command....note I have different file names

    Input #0, image2, from 'slide_2.jpg':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: 8276 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
    
Input #1, mp3, from '/home/admin/web/admin.simplewebevents.com/public_html/cron/steveng1.mp3':
    
  Metadata:
    
    encoder         : Lavf57.56.100
    
  Duration: 00:00:05.78, start: 0.023021, bitrate: 64 kb/s
    
    Stream #1:0: Audio: mp3, 48000 Hz, mono, s16p, 64 kb/s
    
File 'introFile62.mp4' already exists. Overwrite ? [y/N] y
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #1:0 -> #0:1 (mp3 (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
No pixel format specified, yuvj420p for H.264 encoding chosen.
    
Use -pix_fmt yuv420p for compatibility with outdated media players.
    
[libx264 @ 0x3589a00] using SAR=1/1
    
[libx264 @ 0x3589a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x3589a00] profile High, level 3.1
    
[libx264 @ 0x3589a00] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=1 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
    
Output #0, mp4, to 'introFile62.mp4':
    
  Metadata:
    
    encoder         : Lavf57.72.101
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj420p(pc, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc57.96.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, mono, fltp, 69 kb/s
    
    Metadata:
    
      encoder         : Lavc57.96.101 aac
    
frame=    1 fps=0.2 q=28.0 Lsize=      70kB time=00:00:05.76 bitrate=  99.2kbits/s speed=1.27x    
    
video:18kB audio:49kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.483214%
    
[libx264 @ 0x3589a00] frame I:1     Avg QP:25.71  size: 18268
    
[libx264 @ 0x3589a00] mb I  I16..4: 25.6% 63.4% 10.9%
    
[libx264 @ 0x3589a00] 8x8 transform intra:63.4%
    
[libx264 @ 0x3589a00] coded y,uvDC,uvAC intra: 14.3% 18.5% 8.9%
    
[libx264 @ 0x3589a00] i16 v,h,dc,p: 81%  9% 10%  1%
    
[libx264 @ 0x3589a00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 50% 12% 33%  1%  1%  1%  0%  1%  1%
    
[libx264 @ 0x3589a00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 46% 21% 13%  3%  4%  5%  2%  4%  2%
    
[libx264 @ 0x3589a00] i8c dc,h,v,p: 76%  8% 15%  1%
    
[libx264 @ 0x3589a00] kb/s:3653.60
    
[aac @ 0x358aea0] Qavg: 118.057

  • How can I play libvorbis(ogg) streams using ffplay received with udp ?

    31 mars 2017, par crisman

    ffmpeg

    ffmpeg -f dshow -i audio="virtual-audio-capturer" -codec:a libvorbis -b:a 128k -ac 2 -ar 48000 -f mpegts udp://127.0.0.1:1111

    ffplay

    ffplay -codec:a libvorbis -b:a 128k -ar 48000 -ac 2 udp://127.0.0.1:1111

    not playing audio.

    Other codecs play back working, example below.

    aac working

    ffmpeg -f dshow -i audio="virtual-audio-capturer" -codec:a aac -b:a 128k -ac 2 -ar 48000 -f mpegts udp://127.0.0.1:1111
    
ffplay -codec:a aac -b:a 128k -ar 48000 -ac 2 udp://127.0.0.1:1111

    opus codec working

    ffmpeg -f dshow -i audio="virtual-audio-capturer" -codec:a libopus -b:a 128k -ac 2 -ar 48000 -f mpegts udp://127.0.0.1:1111
    
ffplay -codec:a libopus -b:a 128k -ar 48000 -ac 2 udp://127.0.0.1:1111

    mp3 working

    ffmpeg -f dshow -i audio="virtual-audio-capturer" -codec:a mp3 -b:a 128k -ac 2 -ar 48000 -f mpegts udp://127.0.0.1:1111
    
ffplay -codec:a mp3 -b:a 128k -ar 48000 -ac 2 udp://127.0.0.1:1111

    why libvorbis not working ?

    transport success, but can not play, i think.

    // not woring ffplay displayed log
    
ffplay.exe -loglevel debug -codec:a vorbis -b:a 128k -ar 48000 -ac 2 -sync audio -i udp://127.0.0.1:1111
    
ffplay version N-83781-g3016e91 Copyright (c) 2003-2017 the FFmpeg developers
    
built with gcc 6.3.0 (GCC)
    
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
    
libavutil 55. 48.100 / 55. 48.100
    
libavcodec 57. 82.102 / 57. 82.102
    
libavformat 57. 66.103 / 57. 66.103
    
libavdevice 57. 3.100 / 57. 3.100
    
libavfilter 6. 74.100 / 6. 74.100
    
libswscale 4. 3.101 / 4. 3.101
    
libswresample 2. 4.100 / 2. 4.100
    
libpostproc 54. 2.100 / 54. 2.100
    
[udp @ 0000000000b68700] No default whitelist set sq= 0B f=0/0
    
[udp @ 0000000000b68700] end receive buffer size reported is 65536
    
[mpegts @ 0000000000b68ac0] Format mpegts probed with size=2048 and score=50
    
[mpegts @ 0000000000b68ac0] stream=0 stream_type=6 pid=100 prog_reg_desc=
    
[mpegts @ 0000000000b68ac0] Before avformat_find_stream_info() pos: 0 bytes read:8208 seeks:0 nb_streams:1
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2500
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2499
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2498
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2497
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2496
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2495
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2494= 0B f=0/0
    
[mpegts @ 0000000000b68ac0] Probe with size=10038, packets=7 detected mp3 with score=1
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2493= 0B f=0/0
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2492= 0B f=0/0
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2491= 0B f=0/0
    
[mpegts @ 0000000000b68ac0] Probe with size=18321, packets=10 detected mp3 with score=1
    
[mpegts @ 0000000000b68ac0] probing stream 0 pp:2490= 0B f=0/0

  • Add SRT subtitle to video with ffmpeg

    3 juillet 2015, par jAckOdE

    I use ffmpeg to encode, and add subtitle to a video by following command

    $ ffmpeg -i hifi.avi -i hifi.srt -acodec libfaac -ar 48000 -ab 128k -ac 2 -vcodec libx264 -vpre ipod640 -s 480x240 -b 256k -scodec copy  hifi.m4v -newsubtitle

    Here is the output

    ffmpeg version 0.8.git, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug  4 2011 11:11:39 with gcc 4.5.2
    
  configuration: --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib --disable-shared --enable-static --enable-gpl --enable-postproc --enable-pthreads --enable-ffplay --disable-ffserver --enable-memalign-hack --enable-nonfree --enable-libfaac --arch=x86 --enable-swscale --enable-libx264 --enable-avfilter --enable-debug=3
    
  libavutil    51. 11. 1 / 51. 11. 1
    
  libavcodec   53.  9. 1 / 53.  9. 1
    
  libavformat  53.  6. 0 / 53.  6. 0
    
  libavdevice  53.  2. 0 / 53.  2. 0
    
  libavfilter   2. 27. 5 /  2. 27. 5
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
Input #0, avi, from 'hifi.avi':
    
  Metadata:
    
    encoder         : VirtualDubMod 1.5.4.1 (build 2178/release)
    
    IAS1            : English
    
  Duration: 01:49:02.20, start: 0.000000, bitrate: 897 kb/s
    
    Stream #0.0: Video: mpeg4 (Simple Profile), yuv420p, 544x304 [SAR 1:1 DAR 34:19], 25 tbr, 25 tbn, 25 tbc
    
    Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 32 kb/s
    
[srt @ 0152c100] Estimating duration from bitrate, this may be inaccurate
    
Input #1, srt, from 'hifi.srt':
    
  Duration: N/A, start: 56.080000, bitrate: N/A
    
    Stream #1.0: Subtitle: srt
    
File 'hifi.m4v' already exists. Overwrite ? [y/N] y
    
[buffer @ 02548920] w:544 h:304 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
    
[scale @ 02558ee0] w:544 h:304 fmt:yuv420p -> w:480 h:240 fmt:yuv420p flags:0x4
    
[libx264 @ 02547f20] Default settings detected, using medium profile
    
[libx264 @ 02547f20] using SAR=1/1
    
[libx264 @ 02547f20] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
    
[libx264 @ 02547f20] profile High, level 3.0
    
[libx264 @ 02547f20] 264 - core 115 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=256 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=10000 vbv_bufsize=10000 nal_hrd=none ip_ratio=1.40 aq=1:1.00
    
Output #0, ipod, to 'hifi.m4v':
    
    Stream #0.0: Video: libx264, yuv420p, 480x240 [SAR 1:1 DAR 2:1], q=2-31, 256 kb/s, 90k tbn, 25 tbc
    
    Stream #0.1: Audio: libfaac, 48000 Hz, 2 channels, s16, 128 kb/s
    
    Stream #0.2: Subtitle: srt
    
    Stream #0.3: Subtitle: [0][0][0][0] / 0x0000, 64 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
  Stream #1.0 -> #0.2
    
  Stream #1.0 -> #0.3
    
Encoder (codec id 0) not found for output stream #0.3

    can anyone tell what wrong with my command ??

    thanks,

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