# Set the input file path from the first argument
param (
    [string]$input_file
)

# Override input file location
# $input_file = "C:\your\override\here"

# Get the directory of the input file
$inputFileDirectory = Split-Path -Path $input_file -Parent

# Define the debug log path in the same directory as the input file
$debugLog = Join-Path -Path $inputFileDirectory -ChildPath "stacherPost_log.txt"

# Debugging step: Log the input file path
"Input file: $input_file" | Out-File -FilePath $debugLog -Append

# Run ffprobe to detect codec and log output
"Running ffprobe..." | Out-File -FilePath $debugLog -Append
$ffprobeOutput = & ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of csv=p=0 $input_file

# Extract codec information from ffprobe
$codec = $ffprobeOutput.Trim()

# Log the codec detected
"Detected codec: $codec" | Out-File -FilePath $debugLog -Append

# If codec is empty or not detected properly, log it and exit
if (-not $codec) {
    "Failed to detect codec or ffprobe error." | Out-File -FilePath $debugLog -Append
    exit 1
}

# Check codec and process if VP9 or AV1. Alter ffmpeg command here if you wish to encode differently.
if ($codec -ieq "vp9" -or $codec -ieq "av1") {
    "Codec is $codec. Proceeding with conversion..." | Out-File -FilePath $debugLog -Append
    & ffmpeg -hide_banner -threads 0 -hwaccel auto -i $input_file -c:v hevc_nvenc -b_ref_mode 0 -b:v 24000k -profile:v main -level 6.1 -map v:0 -c:a aac -ar 48k -b:a 256k -map a:0 -pix_fmt yuv420p -sws_flags bicubic -tag:v hvc1 -y "$($input_file.Substring(0, $input_file.LastIndexOf('.')))_converted.mp4"
} else {
    "Codec is $codec. Conversion not needed." | Out-File -FilePath $debugLog -Append
}