diff --git a/flake.nix b/flake.nix
index be17d81..37b604c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,6 +15,9 @@
       devShells.default = pkgs.mkShell {
         buildInputs = [
           pkgs.ffmpeg-full
+          pkgs.pciutils
+          pkgs.libva-utils
+          pkgs.libva
         ];
       };
     }
diff --git a/work.sh b/work.sh
index 07dde69..0ab31bc 100755
--- a/work.sh
+++ b/work.sh
@@ -3,7 +3,8 @@
 # Neural Network Deinterlacer weights file
 NNEDI_WEIGHTS="/usr/share/nnedi3/nnedi3_weights.bin"
 # Constant Rate Factor / Global Quality
-CRF=18
+# If I’ve a video/movie that was produced in HD a value between 21-23 works best and produces good results. But there are also videos/movies that where produced before HD was en vouge. When broadcasted they are scaled to HD e.g. In this case a value between 24-25 works best.
+CRF=22
 # Encoding Preset. Veryslow == TU1 QSV
 PRESET=veryslow
 # Lookahead depth, used for QSV h.264
@@ -24,6 +25,8 @@ IVTC_VFILTERS="-color_primaries smpte170m -color_trc smpte170m -colorspace smpte
 # Intel QSV, TU1, Rate control: ICQ, LA_ICQ (not yet) supported, but suggested for future-proofness...
 QSV_VFILTERS="-c:v hevc_qsv -preset ${PRESET} -global_quality:v ${CRF} -look_ahead:v 1 -g 251"
 
+VAAPI_VFILTERS="-c:v hevc_vaapi -preset ${PRESET} -global_quality:v ${CRF} -qp ${CRF} -look_ahead:v 1 -g 251 -rc_mode CQP"
+
 # Intel QSV h.264, TU1, Rate control: LA_ICQ
 QSV_AVC_VFILTERS="-c:v h264_qsv -preset ${PRESET} -global_quality:v ${CRF} -look_ahead:v 1 -look_ahead_depth ${LA_DEPTH} -extra_hw_frames ${LA_DEPTH} -g 251"
 
@@ -31,7 +34,7 @@ QSV_AVC_VFILTERS="-c:v h264_qsv -preset ${PRESET} -global_quality:v ${CRF} -look
 #AFILTERS="-c:a copy -map 0"
 
 # Lossless Compression
-AFILTERS="-c:a flac -compression_level:a 12"
+AFILTERS="-c:a flac -compression_level:a 12 -map 0"
 
 # Lossy, not compatible with players, transparent
 #AFILTERS="-c:a libopus -b:a 192k"
@@ -44,6 +47,7 @@ NTSC_FILTERS="${NTSC_VFILTERS} ${AFILTERS}"
 YNTSC_FILTERS="${YNTSC_VFILTERS} ${AFILTERS}"
 IVTC_FILTERS="${IVTC_VFILTERS} ${AFILTERS}"
 QSV_FILTERS="${QSV_VFILTERS} ${AFILTERS}"
+VAAPI_FILTERS="${VAAPI_VFILTERS} ${AFILTERS}"
 QSV_AVC_FILTERS="${QSV_AVC_VFILTERS} ${AFILTERS}"
 
 # Conversion sous-titres
@@ -52,4 +56,5 @@ if [ $# -ne 2 ]; then
 	echo "Usage: $0 infile outfile"
 	exit 1
 fi
-ffmpeg -i "$1" ${QSV_FILTERS} "$2"
+set -x
+ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 -hwaccel_output_format vaapi -i "$1" ${VAAPI_FILTERS} "$2"