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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

Sur d’autres sites (11876)

  • Freeze frames at a time on videos and slow down videos

    24 avril 2020, par Nguyễn Trọng

    Suppose I have an mp4 video with a duration of 60 seconds.

    



    I want to freeze 1 frame at the 10th second and 40th second and then extend them to about 3 seconds.
At the same time I want to increase the speed of the video to 2 times from the 1 to 20 seconds and 2 times the video slow from 30 to 60 seconds.
The video output I received was 3 + 3 + (20 - 1) * 2 + (30 - 20) + (60-30) * 2 = 108 seconds
Is there a way to do it in one statement ?

    



    Thank in advance and sorry for my bad english.

    


  • FFMPEG extract h264 video (can't see video)

    28 décembre 2015, par Marco Ronchi

    I’m trying to extract a portion of video from another video with FFMPEG. I use this command line :

    ffmpeg -i C:\Temp\test.avi -ss 00:00:30.0 -c copy -t 00:00:10.0 C:\Temp\out.avi

    and this is the output messages :

    ffmpeg version N-77504-gbaf4c48 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55. 11.100 / 55. 11.100
    
  libavcodec     57. 20.100 / 57. 20.100
    
  libavformat    57. 20.100 / 57. 20.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 22.100 /  6. 22.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
[h264 @ 0000024bf533c6c0] illegal aspect ratio
    
[h264 @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[h264 @ 0000024bf533c6c0] missing picture in access unit with size 4382
    
[h264 @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 18 times
    
Input #0, avi, from 'C:\Temp\test.avi':
    
  Metadata:
    
    encoder         : Lavf56.25.101
    
  Duration: 00:01:51.48, start: 0.000000, bitrate: 864 kb/s
    
    Stream #0:0: Video: h264 (Main) (H264 / 0x34363248), yuv420p, 854x480 [SAR 1:1 DAR 427:240], 719 kb/s, 59.94 fps, 29.97 tbr, 59.94 tbn, 59.94 tbc
    
    Stream #0:1: Audio: aac (LC) ([255][0][0][0] / 0x00FF), 44100 Hz, stereo, fltp, 125 kb/s
    
Output #0, avi, to 'C:\Temp\out.avi':
    
  Metadata:
    
    ISFT            : Lavf57.20.100
    
    Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 854x480 [SAR 1:1 DAR 427:240], q=2-31, 719 kb/s, 59.94 fps, 29.97 tbr, 59.94 tbn, 59.94 tbc
    
    Stream #0:1: Audio: aac ([255][0][0][0] / 0x00FF), 44100 Hz, stereo, 125 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 11 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 22411
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 25 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 41687
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 16 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 44957
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 63683
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 39072
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 32 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 31894
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 37 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 44447
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 29614
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 20 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 33664
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 20 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 26399
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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frame=    0 fps=0.0 q=-1.0 size=      10kB time=00:00:02.02 bitrate=  39.7kbits/[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 58844
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 3 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 72293
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 92 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 40496
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 47336
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 19 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 46490
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 45 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 59161
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 43 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 30588
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 6 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 35601
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 4 times
    
frame=    0 fps=0.0 q=-1.0 size=      10kB time=00:00:02.02 bitrate=  39.7kbits/[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 21 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 42018
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 28 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 55838
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 25 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 17035
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 21226
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 17 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 44613
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 48 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 29342
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 8 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 30664
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 32 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 67394
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 57 times
    
frame=    0 fps=0.0 q=-1.0 size=      10kB time=00:00:02.02 bitrate=  39.7kbits/[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 4 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 35793
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 7 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 38809
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 12 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 63104
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 35 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 39476
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 30 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 27844
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 31435
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 20 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 40483
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 29 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 29305
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 12 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 34270
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 25 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 74136
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 53 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 63513
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 8 times
    
frame=    0 fps=0.0 q=-1.0 size=      10kB time=00:00:02.02 bitrate=  39.7kbits/[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 29 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 45954
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 52952
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 78552
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 39 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 33986
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 32874
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 63801
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 78008
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 44 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 21138
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 20 times
    
frame=    0 fps=0.0 q=-1.0 size=      10kB time=00:00:02.02 bitrate=  39.7kbits/[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 17 times
    
[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 63108
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 8 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 57850
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 20832
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 32282
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 38413
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 24824
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 31691
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 25181
    
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frame=    0 fps=0.0 q=-1.0 size=      10kB time=00:00:02.02 bitrate=  39.7kbits/[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 11491
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 65374
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
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[NULL @ 0000024bf533c6c0] AVC: nal size 100779136
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 18231
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 1 times
    
[NULL @ 0000024bf533c6c0] illegal aspect ratio
    
[NULL @ 0000024bf533c6c0] AVC: nal size 1296048104
    
[NULL @ 0000024bf533c6c0] missing picture in access unit with size 17750
    
[NULL @ 0000024bf533c6c0] illegal reordering_of_pic_nums_idc 13
    
    Last message repeated 62 times
    
frame=    0 fps=0.0 q=-1.0 Lsize=      43kB time=00:00:02.02 bitrate= 173.8kbits/s speed= 0.6x
    
video:0kB audio:31kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 38.359665%

    The audio was extracted correctly, but I can’t see video (it’s all black). Can someone help me ?

    Thanks in advance

  • Playback FFmpeg stream through UDP

    11 juillet 2020, par Andrew Raleigh

    I'm using the following command to send ffmpeg data :

    


    ./ffmpeg -i "" -pix_fmt yuv420p -tune zerolatency -preset ultrafast -f mpegts udp://127.0.0.1:23000

    


    I then transmit and receive it to another computer through the srt protocol, and read it back on the end-point.

    


    I play back with .\ffplay.exe -i udp://127.0.0.1:23000 -loglevel 40 and don't see a video. I can see data coming in from WireShark though. This is the log output :

    


    ffplay version N-98438-gc6cdfdf9c3 Copyright (c) 2003-2020 the FFmpeg developers
  built with gcc 10.1.0 (Rev3, Built by MSYS2 project)
  configuration:  --cc='ccache gcc' --cxx='ccache g++' --disable-autodetect --enable-amf --enable-bzlib --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-iconv --enable-lzma --enable-nvenc --enable-schannel --enable-zlib --enable-sdl2 --enable-ffnvcodec --enable-nvdec --enable-gmp --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libaom --disable-debug --enable-libsrt --extra-libs=-liconv --enable-version3
  libavutil      56. 55.100 / 56. 55.100
  libavcodec     58. 94.100 / 58. 94.100
  libavformat    58. 48.100 / 58. 48.100
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
Initialized direct3d renderer.
[mpegts @ 000002130b5eae00] Unable to seek back to the startf=0/0

....

[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20791500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20794500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20800500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.=0/0
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20805000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20809500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20812500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 2 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20820000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20824500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.=0/0
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20829000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20838000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20842500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20847000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20853000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20857500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.=0/0
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20862000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20866500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20871000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20875500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20880000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20884500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] changing packet size to 204  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 188
[mpegts @ 000002130b5eae00] changing packet size to 204  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 188  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 204  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 188  0B f=0/0


    


    FFPlay and FFProbe both output the above. Usually FFPlay would show the video playing back, but in this case I get nothing. Any thoughts as to why ?

    


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