Recherche avancée

Médias (91)

Autres articles (42)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (5679)

  • FFmpeg : Check if the aac bitstream is malformed or not

    21 juillet 2015, par akki_2891

    I want to upload few sets of videos on my server and later play them in the HTML5 video tag. But some of them are not playing.

    I checked the audio stream and video stream of the video, they have AAC and H264 codec respectively.So nothing seems wrong to me.

    Then I tried re-encoding it, i got the following message :

    malformated aac bitstream, use -absf aac_adtstoasc
    
av_interleaved_write_frame(): Operation not permitted

    However I don’t want to encode the videos before upload and just need to check if video has a malformed aac or h264 bitsream.

    PS. Users are limited and will be provided with videos h264 and aac
    encoded for the upload.

  • How can I fix a damaged MP4 ?

    29 juillet 2015, par d3pd

    I have a video of just under an hour recorded but it appears to be damaged somehow. The file format is h264 MP4 and the file size is 2.3 GB, so I’m confident that the information is there, just that the file format is damaged. How could I approach fixing it ?

    So far, I’ve tried a simple ffmpeg copy operation :

    >ffmpeg -i video_28_07_2015_15_16_05.mp4  -c copy out.mp4
    
ffmpeg version N-73895-g323ec6b Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libdcadec --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvo-aacenc --enable-libvidstab
    
  libavutil      54. 28.100 / 54. 28.100
    
  libavcodec     56. 50.101 / 56. 50.101
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 25.100 /  5. 25.100
    
  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
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2a78e00] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 1280x720): unspecified pixel format
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
video_28_07_2015_15_16_05.mp4: could not find codec parameters
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video_28_07_2015_15_16_05.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 0
    
    compatible_brands: isom3gp4
    
    creation_time   : 2015-07-28 14:12:50
    
  Duration: 00:56:43.53, bitrate: 5345 kb/s
    
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none, 1280x720, SAR 1:1 DAR 16:9, 30 fps, 90k tbr, 90k tbn, 180k tbc (default)
    
    Metadata:
    
      creation_time   : 2015-07-28 14:12:50
    
      handler_name    : VideoHandle
    
[mp4 @ 0x2a7b260] Codec for stream 0 does not use global headers but container format requires global headers
    
Output #0, mp4, to 'out.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 0
    
    compatible_brands: isom3gp4
    
    encoder         : Lavf56.40.101
    
    Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), none, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 30 fps, 90k tbr, 90k tbn, 90k tbc (default)
    
    Metadata:
    
      creation_time   : 2015-07-28 14:12:50
    
      handler_name    : VideoHandle
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
Press [q] to stop, [?] for help
    
frame=    0 fps=0.0 q=-1.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A    
    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

    I have no idea of what to try next and would appreciate suggestions and guidance.

  • Function for frame affine transformations in libav (ffmpeg) ?

    31 août 2024, par nopik

    I need to perform affine transformation to AVFrame data (mostly dxva2 NV12).
I found no procedure or options in frame or hwcontext.

    


    Looked into filters - and nothing (google found av_filter_transform, but I'm not found it in any build includes).
Is there any option to do this such a basic operation ? May be I missed some DXVA option ? Or at least filters (although using such a beast...).

    


Navigation