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Autres articles (89)

  • Dépôt de média et thèmes par FTP

    31 mai 2013, par

    L’outil MédiaSPIP traite aussi les média transférés par la voie FTP. Si vous préférez déposer par cette voie, récupérez les identifiants d’accès vers votre site MédiaSPIP et utilisez votre client FTP favori.
    Vous trouverez dès le départ les dossiers suivants dans votre espace FTP : config/ : dossier de configuration du site IMG/ : dossier des média déjà traités et en ligne sur le site local/ : répertoire cache du site web themes/ : les thèmes ou les feuilles de style personnalisées tmp/ : dossier de travail (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

Sur d’autres sites (9812)

  • Are there differences between the parameters of different versions of ffmpeg ?

    13 octobre 2019, par Mauro Alejandro Pereira

    I want to obtain a different raw video for each frame of an MP4 file.
    My instruction works in an old version of ffmpeg but not in the new one.

    In the mp4 file there are 137 frames. It is checked. The versions are installed on different machines.

    Versions 2.8.15 :

    $ ffmpeg -i ./video.mp4 -vf fps=30 -vframes 137 -vcodec rawvideo -s '1920x1080' -pix_fmt gray -threads 0 frame%08d.raw
    
ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './video.mp4':
    
   Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: mp41mp42
    
    creation_time   : 2019-03-11 16:16:54
    
  Duration: 00:00:04.57, start: 0.000000, bitrate: 14014 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 13816 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
    
    Metadata:
    
      creation_time   : 2019-03-11 16:16:54
    
      encoder         : AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
    
    Metadata:
    
      creation_time   : 2019-03-11 16:16:54
    
Output #0, image2, to 'frame%08d.raw':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: mp41mp42
    
    encoder         : Lavf56.40.101
    
    Stream #0:0(eng): Video: rawvideo (Y800 / 0x30303859), gray, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc (default)
    
    Metadata:
    
      creation_time   : 2019-03-11 16:16:54
    
      encoder         : Lavc56.60.100 rawvideo
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
    
Press [q] to stop, [?] for help
    
frame=  137 fps= 73 q=-0.0 Lsize=N/A time=00:00:04.56 bitrate=N/A dup=1 drop=0    
    
video:277425kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

    Version 4.1.4 :

    $ ffmpeg -i ./video.mp4 -vf fps=30 -vframes 137 -vcodec rawvideo -s '1920x1080' -pix_fmt gray -threads 0 frame%08d.raw
    
ffmpeg version 4.1.4-1~deb10u1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 8 (Debian 8.3.0-6)
    
  configuration: --prefix=/usr --extra-version='1~deb10u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x558d1a5bb880] st: 0 edit list: 1 Missing key frame while searching for timestamp: 0
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x558d1a5bb880] st: 0 edit list 1 Cannot find an index entry before timestamp: 0.
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './video.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: mp41mp42
    
    creation_time   : 2019-03-11T16:16:54.000000Z
    
  Duration: 00:00:04.57, start: 0.000000, bitrate: 14014 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 13816 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
    
    Metadata:
    
      creation_time   : 2019-03-11T16:16:54.000000Z
    
      encoder         : AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
    
    Metadata:
    
      creation_time   : 2019-03-11T16:16:54.000000Z
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
    
Press [q] to stop, [?] for help
    
Output #0, image2, to 'frame%08d.raw':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: mp41mp42
    
    encoder         : Lavf58.20.100
    
    Stream #0:0(eng): Video: rawvideo (Y800 / 0x30303859), gray,     1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 497664 kb/s, 30 fps, 30 tbn, 30 tbc (default)
    
    Metadata:
    
      creation_time   : 2019-03-11T16:16:54.000000Z
    
      encoder         : Lavc58.35.100 rawvideo
    
frame=  136 fps= 25 q=-0.0 Lsize=N/A time=00:00:04.53 bitrate=N/A speed=0.834x    
    
video:275400kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

    In the latest version, I expect 137 files but the amount is 136.

  • ffmpeg faild when processing video from stream

    17 octobre 2019, par Milousel

    I create ffmpeg method for modify video from readstream as input. I test it on videos which I download from internet and it’s works good. When I tried it on video from my phone it crash. I tried to modify (take off few second) video from internet and try it again, but I receive the same error message.

     an error happened: ffmpeg exited with code 1: pipe:0: Invalid data found when processing input
    
Cannot determine format of input stream 0:0 after EOF
    
Error marking filters as finished
    
Conversion failed!
    
ffmpeg version N-92722-gf22fcd4483 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 8.2.1 (GCC) 20181201
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  libavutil      56. 24.101 / 56. 24.101
    
  libavcodec     58. 42.102 / 58. 42.102
    
  libavformat    58. 24.101 / 58. 24.101
    
  libavdevice    58.  6.101 / 58.  6.101
    
  libavfilter     7. 46.101 /  7. 46.101
    
  libswscale      5.  4.100 /  5.  4.100
    
  libswresample   3.  4.100 /  3.  4.100
    
  libpostproc    55.  4.100 / 55.  4.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001c49b5ee3c0] stream 0, offset 0x20: partial file
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001c49b5ee3c0] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none(tv, bt709), 1920x1080, 17079 kb/s): unspecified pixel format
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:0':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2019-10-17T11:32:34.000000Z
    
    location        : +50.1308+014.3730/
    
    location-eng    : +50.1308+014.3730/
    
    com.android.version: 7.0
    
  Duration: 00:00:10.77, start: 0.000000, bitrate: N/A
    
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none(tv, bt709), 1920x1080, 17079 kb/s, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
    
    Metadata:
    
      rotate          : 90
    
      creation_time   : 2019-10-17T11:32:34.000000Z
    
      handler_name    : VideoHandle
    
    Side data:
    
      displaymatrix: rotation of -90.00 degrees
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
    
    Metadata:
    
      creation_time   : 2019-10-17T11:32:34.000000Z
    
      handler_name    : SoundHandle
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (aac (native) -> mp3 (libmp3lame))
    
  Stream #0:0 -> #1:0 (h264 (native) -> mjpeg (native))
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001c49b5ee3c0] stream 0, offset 0x20: partial file
    
pipe:0: Invalid data found when processing input
    
Cannot determine format of input stream 0:0 after EOF
    
Error marking filters as finished
    
Conversion failed!
    ffmpeg(stream)
    
        .outputOptions('-movflags', 'faststart')
    
       // .size('1320x438')
    
        .videoCodec('libx264')
    
        .toFormat('avi')
    
        .output(fileName)
    
        .on('error', function(err: { message: string; }, stdout: any, stderr: any) {
    
          console.log('an error happened: ' + err.message + stdout + stderr);
    
         })
    
        .on('end', function() {
    
          console.log('Finished processing video');
    
          const params = {
    
            Body: fs.createReadStream(fileName),
    
            Bucket: videoBucket,
    
            Key: 'test/modification/' + fileName,
    
          };
    
          s3.putObject(params, (err, data) => {
    
            if (err) {
    
              console.log(err);
    
            }
    
          });
    
        })
    
        .output(screensName + '.jpg')
    
        .outputOptions(
    
          '-frames',
    
          '1', // Capture just one frame of the video
    
          '-vf',
    
          'blackdetect=d=2:pix_th=0.00',
    
        )
    
        .on('end', function() {
    
          console.log('Finished processing screenshot');
    
          const params = {
    
            Body: fs.createReadStream(screensName + '.jpg'),
    
            Bucket: videoBucket,
    
            Key: 'test/shots/' + screensName + '.jpg',
    
          };
    
          s3.putObject(params, (err, data) => {
    
            if (err) {
    
              console.log(err);
    
            }
    
          });
    
        })
    
        .run();

  • ffmpeg : precisely cut a video

    19 octobre 2019, par Santhosh Yedidi

    I am tring to cut a video in linux OS

    $ ffmpeg -i dhol.mkv 
    
ffmpeg version n4.1.2 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 8.2.1 (GCC) 20181127
    
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvdec --enable-nvenc --enable-omx --enable-shared --enable-version3
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
Input #0, matroska,webm, from 'dhol.mkv':
    
  Metadata:
    
    ENCODER         : Lavf58.20.100
    
  Duration: 00:03:56.18, start: -0.007000, bitrate: 2688 kb/s
    
    Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv, bt709/unknown/unknown), 1920x1080, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    
    Metadata:
    
      DURATION        : 00:03:56.167000000
    
    Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
    
    Metadata:
    
      DURATION        : 00:03:56.181000000

    I was trying to precisely cut the video file :

    But using ffmpeg I was not successfull. It cuts from the nearest key frames to the given start time

    ffmpeg -y -i dhol.mkv -ss $shift   -t $duration -c:v copy -an output.mkv

    ONE OF THE REASONS HERE IS H.264 Video format (YUV420p vs YUV420sp). I am using -c:v copy so it has to use the same format YUV420p, so it has to start from nearest keyframe

    Now the only reliable software that i can fully depend if avidemux.

    Even in that i have to select

    video-codec: MJPEG
    
audio-codec: vorbis

    But the cut video size will be large.

    I tried in avidemux

    video-codec: copy
    
audio-codec: copy

    It will cut from nearest keyframe than precisely.

    One conclusion :
    So irrespective of ffmpeg or avidemux, the output video format yuv420p will not allow precise formatting

    Only option currently possible :

    Using avidemux and with

    video-codec: MJPEG
    
audio-codec: vorbis

    Cons :

    1) bigger video size.
    
2) no proper command line examples available for avidemux to do the same as gui does

    I tried command line in avidemux :

    avidemux3_cli --video-codec MJPEG --audio-codec AAC --output-format AVI --load dhol.mkv --begin 137.633 --end 141.334 --save dhol2.mkv

    It tries to convert the whole file rather than from the start to end time

    My requirement :
    I want to do it command line.

    I didnt try with ffmpeg (with video codec : MJPEG and audio : vorbis). I never saw any example

    How to precisely cut a video (even the output format can be different (like MJPEG instead of yuv420p, and also bigger sizes, its ok) using command line

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