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• Can I add photon to video and make this photo to be thumbnails(Cover) ? [duplicate]

  2 avril 2019, par 林炳河

  This question already has an answer here :

  • How to add custom thumbnail to a .mp4 file using ffmpeg
    
    1 answer
    

  I want to add thumbnail to a video, but all of my attempts have been not working.

  I already try use ffmpeg command to do this, but it didn’t help.

  what command i used :

  ffmpeg -i source.mp4 -i cover.png  -filter_complex "[1:v]scale=720:1280[oval],[0:v][oval]overlay=enable='between(n,0,1)',fps=fps=15" -pix_fmt yuv420p -c:a copy output.mp4

  Please help me.

• video compression using ffmpeg not working save as empty file after conversion

  25 mars 2019, par HEMANTH KUMAR

  I’m using CodeIgniter and also installed FFmpeg

  I have converted the big size video to small size and it worked in localhost.

  On the live server it’s converting but saving has an empty file.

  $v = '/var/www/html/login/public/restaurants/171/items/'.$rowv->item_id.'/'.$rowv->image;              
  
  $info = pathinfo($rowv->image);
  
  $v2 ='/var/www/html/login/public/restaurants/171/items/'.$rowv->item_id.'/'.'demo'. '.' . $ext;
  
  
  
  
  
  $a = exec("ffmpeg -y -loglevel error -i ".$v." -vcodec libx264 -crf 28 -preset faster -tune film ".$v2);

• Pass UTF8 parameter in powershell

  13 juin 2018, par Dev_MC

  I have to use ffmpeg-normalize (https://github.com/slhck/ffmpeg-normalize) in my project.

  Everything works well except that encoding have trouble on Windows :

  $OutputEncoding = [System.Text.Encoding]::Unicode
  
  $OutputEncoding
  
  Get-WinSystemLocale
  
  pause
  
  Get-ChildItem -path "./" -recurse | foreach ($_) {
  
      if ($_.Extension -eq ".wav") { 
  
      write $_.FullName
  
       ffmpeg-normalize $_.FullName -nt peak -t -20 -o $_.FullName -f
  
       pause
  
      }
  
      if ($_.Extension -eq ".mp4") { 
  
       ffmpeg-normalize $_.FullName -c:a aac -nt peak -t -20 -o $_.FullName -f
  
      }
  
          if ($_.Extension -eq ".mp3") { 
  
       ffmpeg-normalize $_.FullName -c:a libmp3lame -nt peak -t -20 -o $_.FullName -f
  
      }
  
  }

  and here is the display

  BodyName          : utf-16
  
  EncodingName      : Unicode
  
  HeaderName        : utf-16
  
  WebName           : utf-16
  
  WindowsCodePage   : 1200
  
  IsBrowserDisplay  : False
  
  IsBrowserSave     : True
  
  IsMailNewsDisplay : False
  
  IsMailNewsSave    : False
  
  IsSingleByte      : False
  
  EncoderFallback   : System.Text.EncoderReplacementFallback
  
  DecoderFallback   : System.Text.DecoderReplacementFallback
  
  IsReadOnly        : True
  
  CodePage          : 1200
  
  
  
  Parent                         : en
  
  LCID                           : 1033
  
  KeyboardLayoutId               : 1033
  
  Name                           : en-US
  
  IetfLanguageTag                : en-US
  
  DisplayName                    : English (United States)
  
  NativeName                     : English (United States)
  
  EnglishName                    : English (United States)
  
  TwoLetterISOLanguageName       : en
  
  ThreeLetterISOLanguageName     : eng
  
  ThreeLetterWindowsLanguageName : ENU
  
  CompareInfo                    : CompareInfo - en-US
  
  TextInfo                       : TextInfo - en-US
  
  IsNeutralCulture               : False
  
  CultureTypes                   : SpecificCultures, InstalledWin32Cultures, FrameworkCultures
  
  NumberFormat                   : System.Globalization.NumberFormatInfo
  
  DateTimeFormat                 : System.Globalization.DateTimeFormatInfo
  
  Calendar                       : System.Globalization.GregorianCalendar
  
  OptionalCalendars              : {System.Globalization.GregorianCalendar, System.Globalization.GregorianCalendar}
  
  UseUserOverride                : True
  
  IsReadOnly                     : False
  
  
  
  Press Enter to continue...:
  
  C:\Users\user\Desktop\a\b\d\e\audio - Copy.wav
  
  WARNING: Output file only supports one stream. Keeping only first audio stream.
  
  Press Enter to continue...:
  
  C:\Users\user\Desktop\a\b\d\不\audio - Copy.wav
  
  ERROR: file C:\Users\user\Desktop\a\b\d\?\audio - Copy.wav does not exist
  
  Press Enter to continue...:
  
  C:\Users\user\Desktop\a\c\audio - Copy.wav
  
  WARNING: Output file only supports one stream. Keeping only first audio stream.
  
  Press Enter to continue...:

  The program works well on MacOS, so I don’t think it’s a software issue. It looks like PowerShell does not send the parameter to the program correctly.

  Do you have any ideas ?

  Thanks