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• avutil/mastering_display_metadata : add a new allocator function that returns a size

  22 mars 2024, par James Almer

  avutil/mastering_display_metadata : add a new allocator function that returns a size
  av_mastering_display_metadata_alloc() is not useful in scenarios where you need to
  
  know the runtime size of AVMasteringDisplayMetadata.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] doc/APIchanges
  • [DH] libavutil/mastering_display_metadata.c
  • [DH] libavutil/mastering_display_metadata.h
  • [DH] libavutil/version.h

• creating videos with ffmpeg/MoviePy - returns error

  9 avril 2021, par danielsulux

  After using moviepy, it has been shown to have worked, everything is updated. I see no issue with the code, but somehow it returns error.

  


  raise IOError(("MoviePy error: failed to read the duration of file %s.\n"


  


  OSError : MoviePy error : failed to read the duration of file ./Memes_APR_2021_V8/2546583872676854731-pubity-750-1333.mp4.
Here are the file infos returned by ffmpeg :

  


  ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20200122
configuration : —enable-gpl —enable-version3 —enable-sdl2 —enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libdav1d —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. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000208f86182c0] Format mov,mp4,m4a,3gp,3g2,mj2 detected only with low score of 1, misdetection possible !
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000208f86182c0] moov atom not found
./Memes_APR_2021_V8/2546583872676854731-pubity-750-1333.mp4 : Invalid data found when processing input

  


  What it is doing is :
Grabbing videos from my library and making a video with them
thats it...

  


  How do I get this to work ?

  


• Reading file metadata in nodejs with ffmetadata and fs returns undefined

  10 novembre 2020, par Citanaf

  I cant seem to get this right. I am attempting to read a file's metadata (title) with ffmetadata via a loop on the folder using fs. I would then like to push those properties into an object array called files. If I place the push method inside the ffmetadata, it throws a "push is not a function" error. If I place the push method outside ffmetadata, but inside readdirSync, the object gets created, but the titles are undefined.

  


  I think I'm running into a asynchronous issue or a variable scope issue ? I've place several Console.logs over this and the return from the metadata returns after code that comes well after this section.

  


  Any help is appreciated.

  


  var path = './AudioFiles/'
var files = [];
var fTitle

//Read list of files
fs.readdirSync(path).forEach((file) => {
    ffmetadata.read(path + file, function(err, data){
        if (err) console.error("Error reading metadata", err);
        else {
            fTitle = data.title
        }
    })
    files.push({name:file.replace('.mp3',''),title:fTitle})
})


  


  This is what I am receiving :

  


  files = [{name:"myFile1",title:undefined},{name:"myFile2",title:undefined}...]


  


  I am expecting the below results :

  


  files = [{name:"myFile1",title:"myFile1Title"},{name:"myFile2",title:"myFile2Title"}...]