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Médias (1)

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Autres articles (39)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

Sur d’autres sites (5720)

  • Who can tell me the difference and relation between ffmpeg, libav, and avconv

    25 septembre 2014, par why

    when I run ffmpeg on Ubuntu, it shows :

    $ ffmpeg 
    
ffmpeg version v0.8, Copyright (c) 2000-2011 the Libav developers
    
  built on Feb 28 2012 13:27:36 with gcc 4.6.1
    
This program is not developed anymore and is only provided for compatibility. Use avconv instead (see Changelog for the list of incompatible changes).

    or it shows (depending on Ubuntu version) :

    $ ffmpeg
    
ffmpeg version 0.8.5-6:0.8.5-0ubuntu0.12.10.1, Copyright (c) 2000-2012 the Libav developers
    
  built on Jan 24 2013 14:49:20 with gcc 4.7.2
    
*** THIS PROGRAM IS DEPRECATED ***
    
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.

    I found avconv on http://libav.org, I am just perplexed by them

  • current version of ffmpeg3.3.2 encode twice time of my video,the duration last two times long

    20 juin 2017, par jimmy

    I have a video with 00:01:41.46 play time,and transcode it perfect with ffmpeg-2.1.1,but when I upgrade FFmpeg version to 3.3.2 and compile it with the same compile option and same transcode option as 2.1.1 version used, I got a video with 00:03:21.82 long, I played that video to see what was added after 1:41.46, and find that it just repeat the video from the beginning with no audio, I find out no idea to this issue, it seems to be a bug that FFmpeg introducing, anyone help me !

    here is the log that I had transcoded with ffmpeg 3.3.2 :

    ffmpeg -i natural.mp4 -c:v libx264 -c:a copy output.mp4
    
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    

    
configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm -- prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags=-Irelease/include --extra-ldflags='-Lrelease/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra->libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable->muxers --enable-demuxers
    

    
libavutil      55. 58.100 / 55. 58.100
    
libavcodec     57. 89.100 / 57. 89.100
    
libavformat    57. 71.100 / 57. 71.100
    
libavdevice    57.  6.100 / 57.  6.100
    
libavfilter     6. 82.100 /  6. 82.100
    
libswscale      4.  6.100 /  4.  6.100
    
libswresample   2.  7.100 /  2.  7.100
    
libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
  major_brand     : mp42
    
  minor_version   : 0
    
  compatible_brands: mp42isom
    
  creation_time   : 2009-07-11T08:32:34.000000Z
    
  encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
  Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
Metadata:
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
Metadata:
    
    creation_time   : 2009-07-11T08:33:09.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x2d951e0] using SAR=4/3
    
[libx264 @ 0x2d951e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
    
[libx264 @ 0x2d951e0] profile High, level 4.0
    
[libx264 @ 0x2d951e0] 264 - core 138 r1+3473M a37a143 - H.264/MPEG-4 AVC codec >- Copyleft 2003-2013 - 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=23 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 'output.mp4':
    
Metadata:
    
  major_brand     : mp42
    
  minor_version   : 0
    
  compatible_brands: mp42isom
    
  encoder         : Lavf57.71.100
    
Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)
    
  Metadata:
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
    encoder         : Lavc57.89.100 libx264
    
  Side data:
    
    cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
  Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
  Metadata:
    
    creation_time   : 2009-07-11T08:33:09.000000Z
    
frame= 4842 fps= 27 q=-1.0 Lsize=  107608kB time=00:03:21.82 
    
bitrate=4367.8kbits/s speed=1.11x     
    
    video:105973kB audio:1556kB subtitle:0kB other streams:0kB global headers:0kB >muxing overhead: 0.074199%
    
[libx264 @ 0x2d951e0] frame I:54    Avg QP:19.81  size: 77248
    
[libx264 @ 0x2d951e0] frame P:3960  Avg QP:22.01  size: 25371
    
[libx264 @ 0x2d951e0] frame B:828   Avg QP:23.01  size:  4680
    
[libx264 @ 0x2d951e0] consecutive B-frames: 75.2%  4.6%  4.3% 15.9%
    
[libx264 @ 0x2d951e0] mb I  I16..4: 17.0% 79.0%  3.9%
    
[libx264 @ 0x2d951e0] mb P  I16..4:  2.1%  7.8%  0.2%  P16..4: 43.9%  9.7% 6.4%  0.0%  0.0%    skip:29.9%
    
[libx264 @ 0x2d951e0] mb B  I16..4:  0.2%  1.1%  0.0%  B16..8: 29.2%  1.2%  0.2%  direct: 0.7%  skip:67.3%  L0:49.0% L1:47.7% BI: 3.3%
    
[libx264 @ 0x2d951e0] 8x8 transform intra:78.1% inter:81.6%
    
[libx264 @ 0x2d951e0] coded y,uvDC,uvAC intra: 52.3% 66.4% 11.9% inter: 20.5% >24.2% 0.8%
    
[libx264 @ 0x2d951e0] i16 v,h,dc,p: 32% 22% 28% 18%
    
[libx264 @ 0x2d951e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 19% 43%  3%  3%  3%  5%  2%  4%
    
[libx264 @ 0x2d951e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 24% 12%  4%  8%  7% 11%  4%  5%
    
[libx264 @ 0x2d951e0] i8c dc,h,v,p: 50% 23% 23%  4%
    
[libx264 @ 0x2d951e0] Weighted P-Frames: Y:1.5% UV:0.3%
    
[libx264 @ 0x2d951e0] ref P L0: 71.9% 17.0%  8.5%  2.5%  0.0%
    
[libx264 @ 0x2d951e0] ref B L0: 89.7%  9.2%  1.2%
    
[libx264 @ 0x2d951e0] ref B L1: 97.5%  2.5%
    
[libx264 @ 0x2d951e0] kb/s:4298.67

    Here is the output when use ffmpeg -i natural.mp4 -c copy out.mp4,the output still last double times long :

    ./ffmpeg -i natural.mp4 -c copy out.mp4
    
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    
  configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm --prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags=-Irelease/include --extra-ldflags='-Lrelease/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra-libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable-muxers --enable-demuxers
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    creation_time   : 2009-07-11T08:32:34.000000Z
    
    encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:32:34.000000Z
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:33:09.000000Z
    
Output #0, mp4, to 'out.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    encoder         : Lavf57.71.100
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) ( [0][0][0] / 0x0020), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=2-31, 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:32:34.000000Z
    
    Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11T08:33:09.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame= 4842 fps=2243 q=-1.0 Lsize=  222944kB time=00:03:21.91 
    
bitrate=9045.4kbits/s speed=93.5x    
    
video:221299kB audio:1556kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.039627%

    Here is the output what ffmpeg-2.1.1 generate,It’s executed correctly :

    ./ffmpeg -i natural.mp4 -c copy output2.mp4
    
ffmpeg version 2.1.1 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Mar 10 2017 13:56:14 with gcc 4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2)
    
  configuration: --enable-gpl --enable-nonfree --yasmexe=release/bin/yasm --prefix=release --cc= --enable-static --disable-shared --disable-debug --extra-cflags='-I${ffmpeg_exported_release_dir}/include' --extra-ldflags='-L${ffmpeg_exported_release_dir}/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libx264 --enable-libmp3lame --enable-libfdk-aac --enable-libspeex --enable-pthreads --extra-libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable-muxers --enable-demuxers
    
  libavutil      52. 48.101 / 52. 48.101
    
  libavcodec     55. 39.101 / 55. 39.101
    
  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
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2d2e900] multiple edit list entries, a/v desync might occur, patch welcome
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'natural.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    creation_time   : 2009-07-11 08:32:34
    
    encoder         : mp4creator 1.6.1d
    
  Duration: 00:01:41.46, start: 0.000000, bitrate: 9063 kb/s
    
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 8976 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 2997 tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:32:34
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:33:09
    
Output #0, mp4, to 'output2.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isom
    
    encoder         : Lavf55.19.104
    
    Stream #0:0(eng): Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], q=2-31, 8976 kb/s, 23.98 fps, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:32:34
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2009-07-11 08:33:09
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame= 2421 fps=0.0 q=-1.0 Lsize=  112273kB time=00:01:41.49 bitrate=9062.0kbits/s    
    
video:110650kB audio:1556kB subtitle:0 global headers:0kB muxing overhead 0.060302%

    Here is the video link

  • How to reduce the bitrate loss from video processing via FFMPEG ?

    17 juin 2017, par Neo Herakles

    so I use this code to add an intro, outro and watermark to a video but the final result has a loss in bitrate from 2108 bps to 705 bps, how can I keep the bitrate in the 2000 bps range ?

    for %%I in ("C:\Users\Administrator\Desktop\work\*.mp4") do ffmpeg.exe
    
-y -i "%%I" -i white.png -i out1.ts -filter_complex "[1:v][0:v]scale2ref=iw/6:ih/18[logo][0v];[0v][logo]overlay=W-w-3:H-h-1,scale=hd720,setsar=1[vl];[2:v][2:a][vl][0:a][2:v][2:a]concat=n=3:v=1:a=1[v][a]"
    
-map "[v]" -map "[a]" -r 20 -c:v libx264 -ar 48000 "C:\Users\Administrator\Desktop\Complete-videos\%%~nI.mp4"
    

    
pause

    Thank you for your help.

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