Recherche avancée

Médias (1)

Mot : - Tags -/lev manovitch

Autres articles (60)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

Sur d’autres sites (7008)

  • FFmpeg audio dont work in converted videos

    28 octobre 2013, par Bar Cumberworth

    NOTICE : when i convert videos via terminal and download them from ftp into pc the audio works fine. I use :

    if($ext == "avi" && $convert_avi == true)
               {
                   $convert_source = _VIDEOS_DIR_PATH.$new_name;
                   $conv_name = substr(md5($file['name'].rand(1,888)), 2, 10).".mp4";
                   $converted_file  = _VIDEOS_DIR_PATH.$conv_name;
                   $ffmpeg_command = 'ffmpeg -i '.$convert_source.' -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 '.$converted_file;
                   echo exec($ffmpeg_command);
                   $sql = "UPDATE pm_temp SET url = '".$conv_name."' WHERE url = '".$new_name."' LIMIT 1";
                   $result = @mysql_query($sql);
                   unlink($convert_source);    
               }

    This code to convert avi to mp4 ffmpeg concole output :

    root@1tb:~# ffmpeg -i sample.avi -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 goodsample.mp4
    ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
     built on Feb 22 2013 07:18:58 with gcc 4.4.5
     configuration: --enable-libdc1394 --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libfreetype --enable-libschroedinger --disable-encoder=libschroedinger -                                                                                                                                                             s
     libavutil    50. 43. 0 / 50. 43. 0
     libavcodec   52.123. 0 / 52.123. 0
     libavformat  52.111. 0 / 52.111. 0
     libavdevice  52.  5. 0 / 52.  5. 0
     libavfilter   1. 80. 0 /  1. 80. 0
     libswscale    0. 14. 1 /  0. 14. 1
     libpostproc  51.  2. 0 / 51.  2. 0
    [mp3 @ 0x191d4100] Header missing
    [mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
    Input #0, avi, from 'sample.avi':
     Metadata:
       encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
     Duration: 00:01:01.81, start: 0.000000, bitrate: 1194 kb/s
       Stream #0.0: Video: mpeg4, yuv420p, 640x352 [PAR 1:1 DAR 20:11], 23.98 tbr,
       Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s
    [buffer @ 0x191d1c80] w:640 h:352 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
    [scale @ 0x191d6880] w:640 h:352 fmt:yuv420p -> w:1280 h:720 fmt:yuv420p flags:0
    [libx264 @ 0x191ce5a0] Default settings detected, using medium profile
    [libx264 @ 0x191ce5a0] using SAR=45/44
    [libx264 @ 0x191ce5a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle S
    [libx264 @ 0x191ce5a0] profile High, level 3.1
    [libx264 @ 0x191ce5a0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2                                                                                                                                                             6 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_off                                                                                                                                                             1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_l
    Output #0, mp4, to 'goodsample.mp4':
     Metadata:
       encoder         : Lavf52.111.0
       Stream #0.0: Video: libx264, yuv420p, 1280x720 [PAR 45:44 DAR 20:11], q=2-31
       Stream #0.1: Audio: libmp3lame, 44100 Hz, stereo, s16, 64 kb/s
    Stream mapping:
     Stream #0.0 -> #0.0
     Stream #0.1 -> #0.1
    Press [q] to stop, [?] for help
    [mp3 @ 0x191d4100] Header missing
    Error while decoding stream #0.1
    [mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
    [mp3 @ 0x191d4100] incomplete frame 9467kB time=00:01:00.32 bitrate=1285.5kbits/
    Error while decoding stream #0.1
    frame= 1852 fps= 20 q=29.0 Lsize=    9652kB time=00:01:01.72 bitrate=1280.9kbits
    video:9121kB audio:483kB global headers:0kB muxing overhead 0.499688%
    frame I:11    Avg QP:16.78  size: 51456
    [libx264 @ 0x191ce5a0] frame P:784   Avg QP:20.81  size:  8954
    [libx264 @ 0x191ce5a0] frame B:1057  Avg QP:26.06  size:  1659
    [libx264 @ 0x191ce5a0] consecutive B-frames: 22.0%  3.1%  7.5% 67.4%
    [libx264 @ 0x191ce5a0] mb I  I16..4: 31.1% 59.8%  9.1%
    [libx264 @ 0x191ce5a0] mb P  I16..4:  1.8%  2.6%  0.2%  P16..4: 24.3%  7.0%  4.0
    [libx264 @ 0x191ce5a0] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8: 22.7%  0.8%  0.2
    [libx264 @ 0x191ce5a0] 8x8 transform intra:57.0% inter:72.6%
    [libx264 @ 0x191ce5a0] coded y,uvDC,uvAC intra: 44.4% 33.3% 10.3% inter: 7.6% 5.
    [libx264 @ 0x191ce5a0] i16 v,h,dc,p: 68% 14%  8% 10%
    [libx264 @ 0x191ce5a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 14% 27%  5%  7%  7%  6
    [libx264 @ 0x191ce5a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 14% 14%  6% 10%  9%  7
    [libx264 @ 0x191ce5a0] i8c dc,h,v,p: 67% 13% 17%  3%
    [libx264 @ 0x191ce5a0] Weighted P-Frames: Y:1.9% UV:0.4%
    [libx264 @ 0x191ce5a0] ref P L0: 62.2% 12.8% 10.3% 14.5%  0.2%
    [libx264 @ 0x191ce5a0] ref B L0: 88.1%  5.5%  6.4%
    [libx264 @ 0x191ce5a0] ref B L1: 95.7%  4.3%
    [libx264 @ 0x191ce5a0] kb/s:1209.03

    I know there is couple errors tough, but i dont know hot to fix it. Also i would be very thankfull if someone can help reduce video size but is not main problem video weights as original avi but sill.

  • ffmpeg after converting avi to mp4 need wait till video loads in flash player 100% otherwise video is buffering

    28 octobre 2013, par Xenos Trojanowicz

    So if fixed all issues with my ffmpeg journey now I just need that after converting videos they play in flash player instantly and no need to wait till video loeaded 100% I use :

    if ($success_msg) {
       $tmp_parts = explode('.', $file['name']);
       $ext = array_pop($tmp_parts);
       $ext = strtolower($ext);
       if($ext == "avi" && $convert_avi == true) {
           $convert_source = _VIDEOS_DIR_PATH.$new_name;
           $conv_name = substr(md5($file['name'].rand(1,888)), 2, 10).".mp4";
           $converted_file  = _VIDEOS_DIR_PATH.$conv_name;
           $ffmpeg_command = 'ffmpeg -i '.$convert_source.' -acodec libfaac -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 '.$converted_file;
           echo exec($ffmpeg_command);
           $sql = "UPDATE pm_temp SET url = '".$conv_name."' WHERE url = '".$new_name."' LIMIT 1";
           $result = @mysql_query($sql);
           unlink($convert_source);
       }
       echo $success_msg;
    }

    To convert videos

    EDIT #1 ffmpeg concole output with faststart function :

    root@1tb:~# ffmpeg -i sample.avi -movflags faststart -acodec libfaac -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 consample.mp4
    ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
     built on Feb 22 2013 07:18:58 with gcc 4.4.5
     configuration: --enable-libdc1394 --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libfreetype --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-libvpx --enable-librtmp --extra-libs=-lgcrypt --disable-altivec --disable-armv5te --disable-armv6 --disable-vis
     libavutil    50. 43. 0 / 50. 43. 0
     libavcodec   52.123. 0 / 52.123. 0
     libavformat  52.111. 0 / 52.111. 0
     libavdevice  52.  5. 0 / 52.  5. 0
     libavfilter   1. 80. 0 /  1. 80. 0
     libswscale    0. 14. 1 /  0. 14. 1
     libpostproc  51.  2. 0 / 51.  2. 0
    [mp3 @ 0x15389100] Header missing
    [mpeg4 @ 0x15386dc0] Invalid and inefficient vfw-avi packed B frames detected
    Input #0, avi, from 'sample.avi':
     Metadata:
       encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
     Duration: 00:01:01.81, start: 0.000000, bitrate: 1194 kb/s
       Stream #0.0: Video: mpeg4, yuv420p, 640x352 [PAR 1:1 DAR 20:11], 23.98 tbr, 23.98 tbn, 23.98 tbc
       Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s
    [MOV/3GP/MP4/3G2 muxer @ 0x15386c80] [Eval @ 0x7ffffec71230] Undefined constant or missing '(' in 'faststart'
    [MOV/3GP/MP4/3G2 muxer @ 0x15386c80] Unable to parse option value "faststart"
    Invalid value 'movflags' for option 'faststart'
  • python call of ffmpeg misses target file parameter

    2 décembre 2016, par Fred

    I’m writing a python GUI for ffmpeg. When calling ffmpeg via subprocess it runs fine as long as the command is like

    subprocess.Popen([ffmpeg_converter,
           '-i',file,
           target_file
           ])

    But when I do the same call with ffmpeg arguments it fails with
    "At least one output file must be specified" :

    option_string = '-q:a 4'
    subprocess.Popen([ffmpeg_converter,
           '-i',file,
           option_string,
           target_file
           ])

    It even recognizes the options but does not see the target file. I even replaced the actual target file with someting simple like "test.mp3" but still the same error. Any ideas ? (I’m on windows with python 3.3.)

    The complete console output is :

       ffmpeg version N-57781-g0610d6e Copyright (c) 2000-2013 the FFmpeg developers
     built on Nov  1 2013 18:01:35 with gcc 4.8.2 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
    ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
     libavutil      52. 49.100 / 52. 49.100
     libavcodec     55. 40.101 / 55. 40.101
     libavformat    55. 20.105 / 55. 20.105
     libavdevice    55.  5.100 / 55.  5.100
     libavfilter     3. 90.100 /  3. 90.100
     libswscale      2.  5.101 /  2.  5.101
     libswresample   0. 17.104 /  0. 17.104
     libpostproc    52.  3.100 / 52.  3.100
    Trailing options were found on the commandline.
    Input #0, flac, from 'c:\script\python\testdata\source\01. Es geht los.flac':
     Metadata:
       ARTIST          : Olivia Trummer Trio
       TITLE           : Es geht los
       ALBUM           : Westwind
       DATE            : 2008
       track           : 01
       GENRE           : Jazz
       COMMENT         : EAC FLAC -8
     Duration: 00:06:27.25, bitrate: 834 kb/s
       Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
    At least one output file must be specified