3rdparty/ffmpeg/ffmpeg-download.ps1.in

   1 $url = "https://raw.githubusercontent.com/opencv/opencv_3rdparty/@FFMPEG_BINARIES_COMMIT@/ffmpeg/opencv_videoio_ffmpeg_64.dll"
   2 $expected_md5 = "@FFMPEG_FILE_HASH_BIN64@"
   3 $output = "$PSScriptRoot\@OPENCV_BIN_INSTALL_PATH@\opencv_videoio_ffmpeg@OPENCV_DLLVERSION@_64.dll"
   4
   5 Write-Output ("=" * 120)
   6 try {
   7     Get-content -Path "$PSScriptRoot\@OPENCV_LICENSES_INSTALL_PATH@\ffmpeg-readme.txt" -ErrorAction 'Stop'
   8 } catch {
   9     Write-Output "Refer to OpenCV FFmpeg wrapper readme notes about library usage / licensing details."
  10 }
  11 Write-Output ("=" * 120)
  12 Write-Output ""
  13
  14 if(![System.IO.File]::Exists($output)) {
  15     try {
  16         [io.file]::OpenWrite($output).close()
  17     } catch {
  18         Write-Warning "Unable to write: $output"
  19         if (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
  20             Write-Warning "Launching with 'Administrator' elevated privileges..."
  21             Pause
  22             Start-Process powershell.exe "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`"" -Verb RunAs
  23             exit
  24         } else {
  25             Write-Output "FATAL: Unable to write with elevated privileges: $output"
  26             Pause
  27             exit 1
  28         }
  29     }
  30
  31     try {
  32         Write-Output ("Downloading: " + $output)
  33         Import-Module BitsTransfer
  34         $start_time = Get-Date
  35         Start-BitsTransfer -Source $url -Destination $output -ErrorAction 'Stop'
  36         Write-Output "Downloaded in $((Get-Date).Subtract($start_time).Seconds) seconds"
  37     } catch {
  38         $_ # Dump error
  39         try {
  40             Write-Output ("Downloading (second attempt): " + $output)
  41             $start_time = Get-Date
  42             Invoke-WebRequest -Uri $url -OutFile $output
  43             Write-Output "Downloaded in $((Get-Date).Subtract($start_time).Seconds) seconds"
  44         } catch {
  45             Write-Output ("Can't download file: " + $output)
  46             Write-Output ("URL: " + $url)
  47             Write-Output "You need to download this file manually. Stop"
  48             Pause
  49             Exit
  50         }
  51     }
  52 } else {
  53     Write-Output ("File exists: " + $output)
  54     Write-Output ("Downloading is skipped. Remove this file and re-run this script to force downloading.")
  55 }
  56
  57 if(![System.IO.File]::Exists($output)) {
  58     Write-Output ("Destination file not found: " + $output)
  59     Write-Output "Stop"
  60     Pause
  61     Exit
  62 }
  63
  64 try {
  65     $hash = Get-FileHash $output -Algorithm MD5 -ErrorAction 'Stop'
  66
  67     if($hash.Hash -eq $expected_md5) {
  68         Write-Output "MD5 check passed"
  69     } else {
  70         Write-Output ("MD5     : " + $hash.Hash.toLower())
  71         Write-Output ("Expected: " + $expected_md5)
  72         Write-Output "MD5 hash mismatch"
  73     }
  74 } catch {
  75     $_ # Dump error
  76     Write-Output "Can't check MD5 hash (requires PowerShell 4+)"
  77 }
  78 Pause
  79 Write-Output "Exit"