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• What is the proper input format for drawtext's timecode option in fluent-ffmpeg (node.js) ?

  24 janvier 2023, par Gil Dekel

  I am trying to generate short video clips from 3 images with a simple millisecond counter at the top left per user request. So far I was able to generate the clips using the videoshow npm lib, no issues here.

  



  However, when I try to add the timer via fluent-ffmpeg's drawtext filter to an already generated video, I run into the following issue.

  



  Here's what I have so far :

  



  ffmpeg('video.mp4')
    .on('error', function(err, stdout, stderr) {
      console.log("ffmpeg stdout:\n" + stdout);
      console.log("ffmpeg stderr:\n" + stderr);
    })
    .videoCodec('libx264')
    .format('mp4')
    .fps(fps)
    .complexFilter([
        {
            filter: 'drawtext',
            options: {
                fontsize: 15,
                timecode: '00\:00\:00\:00',  //<--- Issue is most likely here
                fontsize: 32,
                fontcolor: 'white',
                boxcolor: 'black',
                box: 1
            }
        }
    ]).save('out.mp4');


  



  From what I found online I am quite convinced that my problem is with the timecode input format. Here's my error log :

  



  ffmpeg stderr:
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --disable-jack --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-nonfree
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
  Duration: 00:00:01.03, start: 0.000000, bitrate: 585 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x1136 [SAR 923:924 DAR 130:231], 573 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
    Metadata:
      handler_name    : VideoHandler
[Parsed_drawtext_0 @ 0x7f91aa700700] Both text and text file provided. Please provide only one
[AVFilterGraph @ 0x7f91aa700440] Error initializing filter 'drawtext' with args 'fontsize=32:timecode=00:00:00:00:fontcolor=white:boxcolor=black:box=1'
Error initializing complex filters.
Invalid argument


  



  Specifically this :

  



  [Parsed_drawtext_0 @ 0x7f91aa700700] Both text and text file provided. Please provide only one


  



  When I run what should be the equivalent to my code in shell, it works perfectly :

  



  ffmpeg -i video.mp4 \
       -vf drawtext="fontsize=15:timecode='00\:00\:00\:00':rate=60:fontsize=32:fontcolor='white':\
           boxcolor=0x000000AA:box=1" \
       -f mp4 out.mp4


  



  I already spent a whole day trying to find any previous solutions to this problem, or documentation online regarding the proper format of drawtext's timecode option within node.js with no luck. It seems most of the information out there is for bash/shell use. I need to do this programmatically on a server per request, and I just can't find the right example to solve this.

  



  Any help to resolve this would be appreciated.

  


• Video duration not detected by moviepy

  27 août 2023, par Kyv

  I have downloaded a video online, and wanted to add a background sound to it.
I followed this link :
Combining an audio file with video file in python
But, while reading the file

  


  my_clip = mpe.VideoFileClip('file.mp4')


  


  I get the error [mov,mp4,m4a,3gp,3g2,mj2 @ 00000152769e78c0] moov atom not found : path/to/file.mp4 Invalid data found when processing input from line 320 in the github resource https://github.com/victorcampos7/tensorflow-ffmpeg/blob/master/ffmpeg_reader.py
How to overcome this issue ?
  
The video I am testing on : https://simgool.com/salon/SHY4xAqxVZ

  


• php shell_exec() command pop out error and permission denied ffmpeg

  3 juin 2023, par user3711175

  This is the main index.php file where I run my code to generate a video thumbnail with ffmpeg but it has no lucks at all I have been searching online for a lot of solution but nothing comes out i will be very appreciate if you guys can help me out. The shell_exec() keep giving me error

  



  &#xA;&#xA;&#xA;&#xA;<form action="index.php" method="POST" enctype="multipart/form-data">&#xA;<input type="file" /><input type="submit" value="upload" />&#xA;&#xA;</form>&#xA;&#xA;&lt;?php&#xA;&#xA;if(isset($_POST[&#x27;submit&#x27;])){&#xA;&#xA;&#xA;$ffmpeg = "/Users/mac/Documents/ffmpeg/3.1.4/bin/ffmpeg";&#xA;$videoFile = $_FILES["file"]["tmp_name"];&#xA;$imageFile = "1.jpg";&#xA;$size = "320x240";&#xA;$getFromSecond = 5;&#xA;$cmd = "$ffmpeg -i $videoFile -an -ss $getFromSecond -s $size $imageFile 2>&amp;1";&#xA;&#xA;    echo shell_exec($cmd);&#xA;&#xA;&#xA;echo shell_exec(&#x27;whoami&#x27;);&#xA;if(!shell_exec($cmd)){&#xA;&#xA;&#xA;    echo "thumbnail created";&#xA;}else{&#xA;    echo "error creating thumbnail";&#xA;}&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;}&#xA;&#xA;?>&#xA;&#xA;&#xA;&#xA;