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ee.record_bbc.ps1
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ee.record_bbc.ps1
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<#-------------------------------------------------------------------------------------------------
ee.Record_bbc (v.20211027)
-------------------------------------------------------------------------------------------------#>
Set-ExecutionPolicy Unrestricted -Scope CurrentUser
$ErrorActionPreference = "SilentlyContinue"; Remove-Variable *; $ErrorActionPreference = "Continue"
$folder = (Get-Item $PSScriptRoot).FullName + "\recordings"
$filename = "[stream]_[start]_[duration]m"
$format = "m4a"
$durationDefault = 60
# Function to download
#<#-------------------------------------------------------------------------------------------------
Function Downloader($seqBegin, $seqEnd, $seqCurrent, $filename)
{
Write-Host "Saving `'$filename.$format`'... 0%" -NoNewline
$filenameTmp = $filename + "_TMP$(Get-Random)"
$fs = [System.IO.File]::OpenWrite("$folder\$filenameTmp.$format")
$fs.Position = $fs.Length
$content = (New-Object System.Net.WebClient).DownloadData($urlInit)
$fs.Write($content, 0, $content.Length)
$seqBuffered = $seqCurrent - 3
If ($seqBegin -gt $seqBuffered)
{
$waitBuffering = ($seqBegin - $seqBuffered) * $seqDuration
Start-Sleep -Milliseconds $waitBuffering
}
$percStep = ($seqEnd - $seqBegin) / 100
For ($i = $seqBegin; $i -lt $seqEnd; $i++)
{
If ($i -gt $seqBuffered++) { Start-Sleep -Milliseconds $seqDuration }
$fs.Position = $fs.Length
$content = (New-Object System.Net.WebClient).DownloadData($urlSeq.Replace("[seqNumber]", $i))
$fs.Write($content, 0, $content.Length)
$percProgress = [int](($i - $seqBegin) / $percStep)
$percProgressStr = $percProgress.ToString().PadLeft(3,' ') + "%"
Write-Host -NoNewline "`b`b`b`b$percProgressStr";
}
Write-Host "`b`b`b`bREADY"
$fs.Close()
Rename-Item "$folder\$filenameTmp.$format" -NewName "$folder\$filename.$format"
}
#-------------------------------------------------------------------------------------------------#>
# Function to create menu
#<#-------------------------------------------------------------------------------------------------
Function Create-Menu ($menuTitle, $menuOptions)
{
# Original function by <josiahdeal3479> is here:
# https://community.spiceworks.com/scripts/show/4656
[Console]::CursorVisible = $False
$maxValue = $menuOptions.Count - 1
$selection = 0
While ($True)
{
Clear-Host
Write-Host $menuTitle
For ($i = 0; $i -le $maxValue; $i++)
{
If ($i -eq $selection)
{
Write-Host " $($menuOptions[$i].PadRight(25," "))" -BackgroundColor DarkBlue
}
Else
{
Write-Host " $($menuOptions[$i])"
}
}
Switch ($Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown").VirtualKeyCode)
{
40 {
If ($selection -eq $maxValue) { $selection = 0 }
Else { $selection += 1 }
Break
}
38 {
If ($selection -eq 0) { $selection = $maxValue }
Else { $selection -= 1 }
Break
}
13 {
[Console]::CursorVisible = $True
$stream = $menuOptions[$selection].Replace(" ", "_").ToLower()
Return $stream
}
}
}
}
#-------------------------------------------------------------------------------------------------#>
# 1. Get arguments
#<#-------------------------------------------------------------------------------------------------
If ($Args[0] -like "")
{
$menuTitle = "Select STREAM"
$menuOptions = "BBC Radio One",
"BBC Radio Two",
"BBC Radio Three",
"BBC Radio Four LW",
"BBC Radio Five Live"
$streamStr = Create-Menu $menuTitle $menuOptions
Write-Host "Select START"
Write-Host " [to record from now, just press ENTER]"
Write-Host " Type the start time as [HHmm], in 24-hour format:"
Write-Host " " -NoNewline
$startStr = Read-Host
Write-Host "Select DURATION"
Write-Host " [to use default 60 minutes, just press ENTER]"
Write-Host " Type required duration in minutes:"
Write-Host " " -NoNewline
$durationStr = Read-Host
}
Else
{
$streamStr = $Args[0]
$startStr = $Args[1]
$durationStr = $Args[2]
}
#-------------------------------------------------------------------------------------------------#>
# 2. Parse STREAM (1st argument) and assign its variable(s)
#<#-------------------------------------------------------------------------------------------------
If ($streamStr -eq "bbc_radio_one")
{
$dtReferUtcStr = "20210101-000000"
$seqReferUtc = 251478002
$seqDuration = 6400
$urlInit = "https://as-dash-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_" `
+ "one/bbc_radio_one.isml/dash/bbc_radio_one-audio=96000.dash"
$urlSeq = "https://as-dash-ww.live.cf.md.bbci.co.uk/pool_904/live/ww/bbc_radio_" `
+ "one/bbc_radio_one.isml/dash/bbc_radio_one-audio=96000-[seqNumber].m4s"
}
ElseIf ($streamStr -eq "bbc_radio_two")
{
$dtReferUtcStr = "20210101-000000"
$seqReferUtc = 251478002
$seqDuration = 6400
$urlInit = "https://as-dash-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_" `
+ "two/bbc_radio_two.isml/dash/bbc_radio_two-audio=96000.dash"
$urlSeq = "https://as-dash-ww.live.cf.md.bbci.co.uk/pool_904/live/ww/bbc_radio_" `
+ "two/bbc_radio_two.isml/dash/bbc_radio_two-audio=96000-[seqNumber].m4s"
}
ElseIf ($streamStr -eq "bbc_radio_three")
{
$dtReferUtcStr = "20210101-000000"
$seqReferUtc = 251478002
$seqDuration = 6400
$urlInit = "https://as-dash-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_" `
+ "three/bbc_radio_three.isml/dash/bbc_radio_three-audio=96000.dash"
$urlSeq = "https://as-dash-ww.live.cf.md.bbci.co.uk/pool_904/live/ww/bbc_radio_" `
+ "three/bbc_radio_three.isml/dash/bbc_radio_three-audio=96000-[seqNumber].m4s"
}
ElseIf ($streamStr -eq "bbc_radio_four_lw")
{
$dtReferUtcStr = "20210101-000000"
$seqReferUtc = 251478002
$seqDuration = 6400
$urlInit = "https://as-dash-ww.live.cf.md.bbci.co.uk/pool_904/live/ww/bbc_radio_" `
+ "fourlw/bbc_radio_fourlw.isml/dash/bbc_radio_fourlw-audio=96000.dash"
$urlSeq = "https://as-dash-ww.live.cf.md.bbci.co.uk/pool_904/live/ww/bbc_radio_" `
+ "fourlw/bbc_radio_fourlw.isml/dash/bbc_radio_fourlw-audio=96000-[seqNumber].m4s"
}
ElseIf ($streamStr -eq "bbc_radio_five_live")
{
$dtReferUtcStr = "20210101-000000"
$seqReferUtc = 251478002
$seqDuration = 6400
$urlInit = "https://as-dash-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_" `
+ "five_live/bbc_radio_five_live.isml/dash/bbc_radio_five_live-audio=96000.dash"
$urlSeq = "https://as-dash-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_" `
+ "five_live/bbc_radio_five_live.isml/dash/bbc_radio_five_live-audio=96000-[seqNumber].m4s"
}
Else
{
Write-Host "Error! Check STREAM (1st argument)"
Exit
}
#-------------------------------------------------------------------------------------------------#>
# 3. Parse START (2nd argument) and assign its variable(s)
#<#-------------------------------------------------------------------------------------------------
If ($startStr -like "")
{
$start = Get-Date
}
Else
{
Try
{
$start = [DateTime]::ParseExact($startStr,'HHmm', $Null)
If ($(Get-Date) -lt $start) { $start = $start.AddDays(-1) }
}
Catch
{
Write-Host "Error! Check START (2nd argument)"
Exit
}
}
#-------------------------------------------------------------------------------------------------#>
# 4. Parse DURATION (3rd argument) and assign its variable(s)
#<#-------------------------------------------------------------------------------------------------
If ($durationStr -like "")
{
$duration = [TimeSpan]::FromMinutes($durationDefault)
}
Else
{
Try
{
$duration = [TimeSpan]::FromMinutes($durationStr)
}
Catch
{
Write-Host "Error! Check DURATION (3rd argument)"
Exit
}
}
#-------------------------------------------------------------------------------------------------#>
# 5. Generate file name, check if it exists
#<#-------------------------------------------------------------------------------------------------
$filename = $filename.Replace("[stream]", $streamStr)
$filename = $filename.Replace("[start]", $start.ToString("yyyyMMdd-HHmm"))
$filename = $filename.Replace("[duration]", $duration.TotalMinutes.ToString('0000'))
If (Test-Path "$folder\$filename.$format")
{
Write-Host "Error! File already exists"
Exit
}
ElseIf (!(Test-Path $folder))
{
New-Item -ItemType Directory $folder | Out-Null
}
#-------------------------------------------------------------------------------------------------#>
# 6. Calculate sequences
#<#-------------------------------------------------------------------------------------------------
$dtReferUtc = [DateTime]::ParseExact($dtReferUtcStr,"yyyyMMdd-HHmmss", $Null)
$dtStartUtc = $start.ToUniversalTime()
$seqBegin = [int]($seqReferUtc +
(New-TimeSpan $dtReferUtc $dtStartUtc).TotalMilliseconds / $seqDuration)
$seqEnd = $seqBegin + [int]($duration.TotalMilliseconds / $seqDuration)
$seqCurrent = [int]($seqReferUtc +
(New-TimeSpan $dtReferUtc $(Get-Date).ToUniversalTime()).TotalMilliseconds / $seqDuration)
#-------------------------------------------------------------------------------------------------#>
# 7. Download media
#<#-------------------------------------------------------------------------------------------------
Downloader $seqBegin $seqEnd $seqCurrent $filename
#-------------------------------------------------------------------------------------------------#>
# 8. Finish
#<#-------------------------------------------------------------------------------------------------
$ErrorActionPreference = "SilentlyContinue"; Remove-Variable *; $ErrorActionPreference = "Continue"
#-------------------------------------------------------------------------------------------------#>