Recherche avancée

Médias (0)

Mot : - Tags -/xmlrpc

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (8)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

Sur d’autres sites (3379)

  • FFmpeg converting image sequence to video results in blank video [closed]

    11 juillet 2019, par Brandon Durham

    I’ve got a series of 361 .png files that I’m trying to convert to video, and for whatever reason the resulting video is just black. Here is the FFmpeg code I’m using :

    ffmpeg -f image2 -i "FeatureTour_%05d.png" -r 30 -vcodec libx264 -b:v 9600k "FeatureTour.mp4"

    The files are formatted correctly (FeatureTour_00001.png) and no errors are thrown. It just results in a 160kb mp4 files that’s black.

    Any idea what I’m doing wrong ?

    EDIT

    Here is my output after using the above code :

    ffmpeg version N-46206-g0e4d34e Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Oct 30 2012 23:07:44 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
    
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libaacplus --enable-libass --enable-libcelt --enable-libfaac --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-openssl --enable-libopus --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --prefix=/usr/local
    
  libavutil      52.  1.100 / 52.  1.100
    
  libavcodec     54. 70.100 / 54. 70.100
    
  libavformat    54. 35.100 / 54. 35.100
    
  libavdevice    54.  3.100 / 54.  3.100
    
  libavfilter     3. 20.113 /  3. 20.113
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 16.100 /  0. 16.100
    
  libpostproc    52.  1.100 / 52.  1.100
    
[image2 @ 0x7fa68381e200] max_analyze_duration 5000000 reached at 5000000
    
Input #0, image2, from 'FeatureTour_%05d.png':
    
  Duration: 00:00:14.44, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgb24, 114x151 [SAR 2835:2835 DAR 114:151], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 0x7fa683826c00] using SAR=1/1
    
[libx264 @ 0x7fa683826c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x7fa683826c00] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
    
[libx264 @ 0x7fa683826c00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=4 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=abr mbtree=1 bitrate=9600 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'FeatureTour.mp4':
    
  Metadata:
    
    encoder         : Lavf54.35.100
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 114x151 [SAR 1:1 DAR 114:151], q=-1--1, 9600 kb/s, 15360 tbn, 30 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png -> libx264)
    
Press [q] to stop, [?] for help
    
frame=  432 fps=0.0 q=-2.0 Lsize=     152kB time=00:00:14.33 bitrate=  86.9kbits/s dup=71 drop=0    
    
video:146kB audio:0kB subtitle:0 global headers:0kB muxing overhead 3.905020%
    
[libx264 @ 0x7fa683826c00] frame I:3     Avg QP: 0.06  size:  8557
    
[libx264 @ 0x7fa683826c00] frame P:135   Avg QP: 0.10  size:   653
    
[libx264 @ 0x7fa683826c00] frame B:294   Avg QP: 0.43  size:   120
    
[libx264 @ 0x7fa683826c00] consecutive B-frames:  8.8%  0.9%  1.4% 88.9%
    
[libx264 @ 0x7fa683826c00] mb I  I16..4: 30.0%  0.4% 69.6%
    
[libx264 @ 0x7fa683826c00] mb P  I16..4:  2.1%  0.0%  1.9%  P16..4:  7.5%  1.2%  0.8%  0.0%  0.0%    skip:86.5%
    
[libx264 @ 0x7fa683826c00] mb B  I16..4:  0.2%  0.0%  0.1%  B16..8:  4.4%  0.3%  0.2%  direct: 0.9%  skip:93.8%  L0:46.5% L1:48.9% BI: 4.5%
    
[libx264 @ 0x7fa683826c00] final ratefactor: -45.15
    
[libx264 @ 0x7fa683826c00] 8x8 transform intra:0.7% inter:19.3%
    
[libx264 @ 0x7fa683826c00] coded y,u,v intra: 44.4% 32.1% 31.5% inter: 2.3% 1.6% 1.4%
    
[libx264 @ 0x7fa683826c00] i16 v,h,dc,p: 25% 75%  0%  0%
    
[libx264 @ 0x7fa683826c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 40% 10%  0%  5%  0% 10%  0%  5%
    
[libx264 @ 0x7fa683826c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 71%  5%  1%  1%  1%  2%  1%  2%
    
[libx264 @ 0x7fa683826c00] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fa683826c00] ref P L0: 88.0%  3.9%  5.0%  3.1%
    
[libx264 @ 0x7fa683826c00] ref B L0: 85.4% 12.4%  2.1%
    
[libx264 @ 0x7fa683826c00] ref B L1: 98.1%  1.9%
    
[libx264 @ 0x7fa683826c00] kb/s:82.86

  • FFmpeg converting image sequence to video results in blank video [closed]

    11 septembre 2016, par Brandon Durham

    I’ve got a series of 361 .png files that I’m trying to convert to video, and for whatever reason the resulting video is just black. Here is the FFmpeg code I’m using :

    ffmpeg -f image2 -i "FeatureTour_%05d.png" -r 30 -vcodec libx264 -b:v 9600k "FeatureTour.mp4"

    The files are formatted correctly (FeatureTour_00001.png) and no errors are thrown. It just results in a 160kb mp4 files that’s black.

    Any idea what I’m doing wrong ?

    EDIT

    Here is my output after using the above code :

    ffmpeg version N-46206-g0e4d34e Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Oct 30 2012 23:07:44 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
    
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libaacplus --enable-libass --enable-libcelt --enable-libfaac --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-openssl --enable-libopus --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --prefix=/usr/local
    
  libavutil      52.  1.100 / 52.  1.100
    
  libavcodec     54. 70.100 / 54. 70.100
    
  libavformat    54. 35.100 / 54. 35.100
    
  libavdevice    54.  3.100 / 54.  3.100
    
  libavfilter     3. 20.113 /  3. 20.113
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 16.100 /  0. 16.100
    
  libpostproc    52.  1.100 / 52.  1.100
    
[image2 @ 0x7fa68381e200] max_analyze_duration 5000000 reached at 5000000
    
Input #0, image2, from 'FeatureTour_%05d.png':
    
  Duration: 00:00:14.44, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgb24, 114x151 [SAR 2835:2835 DAR 114:151], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 0x7fa683826c00] using SAR=1/1
    
[libx264 @ 0x7fa683826c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x7fa683826c00] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
    
[libx264 @ 0x7fa683826c00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=4 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=abr mbtree=1 bitrate=9600 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'FeatureTour.mp4':
    
  Metadata:
    
    encoder         : Lavf54.35.100
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 114x151 [SAR 1:1 DAR 114:151], q=-1--1, 9600 kb/s, 15360 tbn, 30 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png -> libx264)
    
Press [q] to stop, [?] for help
    
frame=  432 fps=0.0 q=-2.0 Lsize=     152kB time=00:00:14.33 bitrate=  86.9kbits/s dup=71 drop=0    
    
video:146kB audio:0kB subtitle:0 global headers:0kB muxing overhead 3.905020%
    
[libx264 @ 0x7fa683826c00] frame I:3     Avg QP: 0.06  size:  8557
    
[libx264 @ 0x7fa683826c00] frame P:135   Avg QP: 0.10  size:   653
    
[libx264 @ 0x7fa683826c00] frame B:294   Avg QP: 0.43  size:   120
    
[libx264 @ 0x7fa683826c00] consecutive B-frames:  8.8%  0.9%  1.4% 88.9%
    
[libx264 @ 0x7fa683826c00] mb I  I16..4: 30.0%  0.4% 69.6%
    
[libx264 @ 0x7fa683826c00] mb P  I16..4:  2.1%  0.0%  1.9%  P16..4:  7.5%  1.2%  0.8%  0.0%  0.0%    skip:86.5%
    
[libx264 @ 0x7fa683826c00] mb B  I16..4:  0.2%  0.0%  0.1%  B16..8:  4.4%  0.3%  0.2%  direct: 0.9%  skip:93.8%  L0:46.5% L1:48.9% BI: 4.5%
    
[libx264 @ 0x7fa683826c00] final ratefactor: -45.15
    
[libx264 @ 0x7fa683826c00] 8x8 transform intra:0.7% inter:19.3%
    
[libx264 @ 0x7fa683826c00] coded y,u,v intra: 44.4% 32.1% 31.5% inter: 2.3% 1.6% 1.4%
    
[libx264 @ 0x7fa683826c00] i16 v,h,dc,p: 25% 75%  0%  0%
    
[libx264 @ 0x7fa683826c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 40% 10%  0%  5%  0% 10%  0%  5%
    
[libx264 @ 0x7fa683826c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 71%  5%  1%  1%  1%  2%  1%  2%
    
[libx264 @ 0x7fa683826c00] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fa683826c00] ref P L0: 88.0%  3.9%  5.0%  3.1%
    
[libx264 @ 0x7fa683826c00] ref B L0: 85.4% 12.4%  2.1%
    
[libx264 @ 0x7fa683826c00] ref B L1: 98.1%  1.9%
    
[libx264 @ 0x7fa683826c00] kb/s:82.86

  • ffmpeg fastest way to convert videos avi to mp4 [migrated]

    5 novembre 2013, par user2938660

    I have server which has :

    • 8x3,4 (sandy bridge cpu)
    • 10gb ram

    i tried different combinations to convert vvideos i mean avi to mp4 but it takes so long :
    - 20mins= 200mb

    maybe there is some ffmpeg command which does this much faster ?

    EDIT WITH ULTRAFAST :

    root@1tb:~/test# ffmpeg -i video.avi -c:v libx264 -preset ultrafast out.mp4
    
ffmpeg version git-2013-10-28-f1f0b01 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Oct 29 2013 02:05:45 with gcc 4.4.5 (Debian 4.4.5-8)
    
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
    
  libavutil      52. 48.100 / 52. 48.100
    
  libavcodec     55. 39.100 / 55. 39.100
    
  libavformat    55. 19.104 / 55. 19.104
    
  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
    
Input #0, avi, from 'video.avi':
    
  Duration: 00:29:00.28, start: 0.000000, bitrate: 1120 kb/s
    
    Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 23.98 tbr, 23.98 tbn, 23.98 tbc
    
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16p, 128 kb/s
    
    Metadata:
    
      title           : Hello.Ladies.S01E06.HDTV.XviD-AFG_360p.audio
    
[libx264 @ 0x2e08e40] using SAR=1/1
    
[libx264 @ 0x2e08e40] using cpu capabilities: none!
    
[libx264 @ 0x2e08e40] profile Constrained Baseline, level 3.0
    
[libx264 @ 0x2e08e40] 264 - core 138 r2358 9e941d1 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=23 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
    
Output #0, mp4, to 'out.mp4':
    
  Metadata:
    
    encoder         : Lavf55.19.104
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 10000k tbn, 23.98 tbc
    
    Stream #0:1: Audio: aac (libfaac) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      title           : Hello.Ladies.S01E06.HDTV.XviD-AFG_360p.audio
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg4 -> libx264)
    
  Stream #0:1 -> #0:1 (mp3 -> libfaac)
    
Press [q] to stop, [?] for help
    
frame=41726 fps=326 q=-1.0 Lsize=  312916kB time=00:29:00.32 bitrate=1473.0kbits/s dup=1 drop=0
    
video:284876kB audio:27186kB subtitle:0 global headers:0kB muxing overhead 0.273494%
    
[libx264 @ 0x2e08e40] frame I:167   Avg QP:18.69  size: 30492
    
[libx264 @ 0x2e08e40] frame P:41559 Avg QP:21.68  size:  6897
    
[libx264 @ 0x2e08e40] mb I  I16..4: 100.0%  0.0%  0.0%
    
[libx264 @ 0x2e08e40] mb P  I16..4:  6.3%  0.0%  0.0%  P16..4: 51.2%  0.0%  0.0%  0.0%  0.0%    skip:42.5%
    
[libx264 @ 0x2e08e40] coded y,uvDC,uvAC intra: 44.9% 54.5% 19.0% inter: 28.1% 20.3% 2.2%
    
[libx264 @ 0x2e08e40] i16 v,h,dc,p: 43% 23% 21% 13%
    
[libx264 @ 0x2e08e40] i8c dc,h,v,p: 36% 22% 32% 11%
    
[libx264 @ 0x2e08e40] kb/s:1340.96
    
root@1tb:~/test# qt-faststart out.mp4 labas1.mp4
    
ftyp          0 32
    
free         32 8
    
mdat         40 319552104
    
moov  319552144 873943
    
 patching stco atom...
    
 patching stco atom...
    
 writing ftyp atom...
    
 writing moov atom...
    
 copying rest of file...
    
root@1tb:~/test#

Navigation