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  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

Sur d’autres sites (3297)

  • ffmpeg get the audio stream from mp4 and send it to speech recognition

    12 juillet 2013, par user1896859

    I have few .mp4 video files in which at the start of each video file there is a word, I want to load these files get the audio check what is the spoken word and rename the file accordingly.

    Currently what i am doing is, converting all the mp4 files to wav and then sending the to speech recognition and then doing the renaming stuff.

    Is there a way to cut short the "converting to wav" part out and directly send the mp4 audio stream to speech recognition ??

    Thanks,

  • Why ffmpeg command results in blank video ?

    17 juillet 2013, par kheya

    I am trying to conver mov file to H264 encoded mp4
    Same command converts another mov file just fine.

    But fails for a particular mov file. Original video is 29.6MB after conversion I get 966KB

    I get the sound and duration right. But all the frames are black even though original video is fine.

    Here is the command :

    ffmpeg -i file3.mov -movflags +faststart -vcodec libx264 -preset slow -crf 20 -vf -threads 0 -acodec libvo_aacenc -b:a 128k "file3.mp4"

    Here is the result of ffmpeg -i : >ffmpeg.exe -i file3.mov

    ffmpeg version N-54691-g7f4a1fd Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jul 12 2013 16:31:48 with gcc 4.7.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
    
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
    
enable-libxvid --enable-zlib
    
  libavutil      52. 39.100 / 52. 39.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.102 / 55. 12.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 80.101 /  3. 80.101
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000003077e0] sample aspect ratio already set to
    
118:81, ignoring 'pasp' atom (10000:7031)
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file3.mov':
    
  Metadata:
    
    creation_time   : 2009-02-12 01:19:22
    
  Duration: 00:00:08.00, start: 0.000000, bitrate: 30338 kb/s
    
    Stream #0:0(eng): Video: dvvideo (dvpp / 0x70707664), yuv411p, 720x576 [SAR
    
64:45 DAR 16:9], 28800 kb/s, SAR 118:81 DAR 295:162, 25 fps, 25 tbr, 600 tbn, 25
    
 tbc
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, stereo, s1
    
6, 1536 kb/s
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler

    During conversion here is what I see (nothing unusual or no errors) :

    ffmpeg version N-54691-g7f4a1fd Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jul 12 2013 16:31:48 with gcc 4.7.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
    
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
    
enable-libxvid --enable-zlib
    
  libavutil      52. 39.100 / 52. 39.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.102 / 55. 12.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 80.101 /  3. 80.101
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000024aafe0] sample aspect ratio already set to
    
118:81, ignoring 'pasp' atom (10000:7031)
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file3.mov':
    
  Metadata:
    
    creation_time   : 2009-02-12 01:19:22
    
  Duration: 00:00:08.00, start: 0.000000, bitrate: 30338 kb/s
    
    Stream #0:0(eng): Video: dvvideo (dvpp / 0x70707664), yuv411p, 720x576 [SAR
    
64:45 DAR 16:9], 28800 kb/s, SAR 118:81 DAR 295:162, 25 fps, 25 tbr, 600 tbn, 25
    
 tbc
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, stereo, s1
    
6, 1536 kb/s
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
No pixel format specified, yuv422p for H.264 encoding chosen.
    
Use -pix_fmt yuv420p for compatibility with outdated media players.
    
[libx264 @ 0000000000347340] using SAR=118/81
    
[libx264 @ 0000000000347340] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    
AVX
    
[libx264 @ 0000000000347340] profile High 4:2:2, level 2.1, 4:2:2 8-bit
    
[libx264 @ 0000000000347340] 264 - core 133 r2334 a3ac64b - H.264/MPEG-4 AVC cod
    
ec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 r
    
ef=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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_pski
    
p=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 deci
    
mate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_
    
adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=2
    
5 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=20.0 qcomp=0.6
    
0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'file4a.mp4':
    
  Metadata:
    
    encoder         : Lavf55.12.102
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv422p, 4
    
80x320 [SAR 118:81 DAR 59:27], q=-1--1, 12800 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1(eng): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000
    
Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      creation_time   : 2009-02-12 01:19:22
    
      handler_name    : Apple Alias Data Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (dvvideo -> libx264)
    
  Stream #0:1 -> #0:1 (pcm_s16be -> libvo_aacenc)
    
Press [q] to stop, [?] for help
    
[swscaler @ 00000000024b0740] Warning: data is not aligned! This can lead to a s
    
peedloss
    
frame=   78 fps=0.0 q=25.0 size=     128kB time=00:00:02.14 bitrate= 487.8kbits/
    
frame=  113 fps=109 q=25.0 size=     272kB time=00:00:04.27 bitrate= 520.9kbits/
    
frame=  145 fps= 94 q=25.0 size=     399kB time=00:00:05.36 bitrate= 609.2kbits/
    
frame=  182 fps= 89 q=25.0 size=     571kB time=00:00:06.45 bitrate= 725.0kbits/
    
Starting second pass: moving header on top of the file
    
frame=  200 fps= 70 q=-1.0 Lsize=     965kB time=00:00:08.00 bitrate= 987.2kbits
    
/s
    
video:832kB audio:126kB subtitle:0 global headers:0kB muxing overhead 0.755121%
    
[libx264 @ 0000000000347340] frame I:1     Avg QP:21.14  size: 39885
    
[libx264 @ 0000000000347340] frame P:50    Avg QP:21.80  size:  7412
    
[libx264 @ 0000000000347340] frame B:149   Avg QP:26.25  size:  2960
    
[libx264 @ 0000000000347340] consecutive B-frames:  0.5%  0.0%  1.5% 98.0%
    
[libx264 @ 0000000000347340] mb I  I16..4: 13.7% 46.7% 39.7%
    
[libx264 @ 0000000000347340] mb P  I16..4:  0.5% 19.7%  3.8%  P16..4: 32.8% 11.9
    
% 14.1%  0.0%  0.0%    skip:17.1%
    
[libx264 @ 0000000000347340] mb B  I16..4:  0.0%  5.1%  1.3%  B16..8: 14.4%  9.2
    
%  2.9%  direct: 7.3%  skip:59.8%  L0:42.8% L1:38.3% BI:19.0%
    
[libx264 @ 0000000000347340] 8x8 transform intra:79.4% inter:71.7%
    
[libx264 @ 0000000000347340] direct mvs  spatial:97.3% temporal:2.7%
    
[libx264 @ 0000000000347340] coded y,uvDC,uvAC intra: 92.8% 80.1% 26.3% inter: 2
    
4.2% 28.8% 8.1%
    
[libx264 @ 0000000000347340] i16 v,h,dc,p: 64% 17%  3% 16%
    
[libx264 @ 0000000000347340] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  1% 33%  4%  3%  8%
    
 2% 35%  2% 11%
    
[libx264 @ 0000000000347340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  3% 23%  5%  4% 11%
    
 5% 33%  4% 13%
    
[libx264 @ 0000000000347340] i8c dc,h,v,p: 38% 40% 14%  8%
    
[libx264 @ 0000000000347340] Weighted P-Frames: Y:2.0% UV:0.0%
    
[libx264 @ 0000000000347340] ref P L0: 39.9% 10.0% 25.6%  8.7% 15.3%  0.6%
    
[libx264 @ 0000000000347340] ref B L0: 76.9% 15.1%  5.7%  2.3%
    
[libx264 @ 0000000000347340] ref B L1: 96.3%  3.7%
    
[libx264 @ 0000000000347340] kb/s:851.49

  • lavf/matroskaenc : using valid chapter ids

    17 juillet 2013, par Fabian Neundorf
    lavf/matroskaenc : using valid chapter ids

    Fixes ticket 2790, by starting the ChapterUIDs in mkv files with 1 instead of a 0.
    
 
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavformat/matroskaenc.c

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