#!/bin/sh
 
# Modifications
# Current Settings Works Well For the GenerPlus Large TF Files from HDD Model. 2.5GB 20min files compress to around 300mb with similar quality
# Add -nostdin so that hopefully ffmpeg can automatically process each file on each line as had issues
 
READFILE=$1
PREFIX='Transcode'
FFMPEG="C:\ffmpeg\bin\ffmpeg.exe"
 
echo "Utilizing $file"
 
while IFS= read -r line
 
do
 
	echo "Current File Being Processed $line"
	line=$(basename $line)
	echo " Target file is ${line}"
	
	#---------------------------------#
	# Argument needs to come before the input file for
	# If the hardware supports encoding then use one filled in. If not then use the blank
	# HARDWARE ACCELERATION DECODE/ENCODE
	# HWACCEL=""
	HWACCEL="-hwaccel cuda -hwaccel_output_format cuda"
	# HWACCEL="-hwaccel vaapi -hwaccel_output_format vapi"
		

	#---------------------------------#
	# Video encoder 
	# -c:v libx264        # H.264 CPU encoding
	# -c:v libx265        # H.265 CPU encoding
	# -c:v av1_nvenc      # AV1 NVENC GPU encoding
	# -c:v h264_nvenc     # H.264 NVENC GPU encoding
	# -c:v hevc_nvenc     # H.265 NVENC GPU encoding
	VIDEO_CODEC="-c:v hevc_nvenc"

	#---------------------------------#
	# Audio encoder
	AUDIO_CODEC="-c:a libmp3lame"

	#---------------------------------#
	# Filters
	# -vf vflip 			# vertically flip video
	# -vf nlmeans           # deinterlace
	# -vf atadenoise \      # denoise (slows down alot)
	FILTERS=""
	
	# Other
	# -fps_mode vfr  is equal to -vsync 2 for newer version of ffmpeg

	#---------------------------------#
	# Video Bitrate settings. (Add an audio)
	BITRATE="-b:v 2M -maxrate 8M -bufsize 2M"

	$FFMPEG -nostdin -i \
		$HWACCEL \
		"$line" \
		$BITRATE \
		$VIDEO_CODEC \
		$AUDIO_CODEC \
		-fps_mode vfr \
		$FILTERS \
		"${PREFIX}${line}.mp4"


	# $FFMPEG -nostdin -i "$line" \
		# -b:v 1.7M -maxrate 8M -bufsize 2M \
		# -b:a 80k \
		# -c:v hevc_nvenc \
		# -c:a libmp3lame \
		# -fps_mode vfr \
		# -vf nlmeans,atadenoise \
		# "${PREFIX}${line}.mp4"


echo "Line --> ${line} finished"

done < "$READFILE"