feat: add Makefile to run ffmpeg

Makefile

@@ -0,0 +1,35 @@
+.PHONY: hevc-nvenc x265 av1
+
+FFMPEG=ffmpeg
+IN_FMT=rgba
+
+RESOLUTION=1920x1080
+FPS=60
+OUT=out.mp4
+
+FFMPEG_CMD=$(FFMPEG) -f rawvideo -pix_fmt $(IN_FMT) -s $(RESOLUTION) -framerate $(FPS) -i - -vf "scale=out_color_matrix=bt709:out_range=tv:flags=accurate_rnd+full_chroma_int+bitexact,format=p010le"
+
+hevc-nvenc:
+	$(FFMPEG_CMD) \
+		-c:v hevc_nvenc -preset p7 -tune hq -rc vbr -cq 14 -b:v 0 -maxrate 200M -bufsize 400M \
+		-profile:v main10 -pix_fmt p010le \
+		-spatial-aq 1 -aq-strength 6 -temporal-aq 1 \
+		-rc-lookahead 32 -bf 4 -b_ref_mode middle -multipass fullres \
+		-colorspace bt709 -color_primaries bt709 -color_trc bt709 -color_range tv \
+		-tag:v hvc1 -movflags +faststart \
+		$(OUT)
+
+x265:
+	$(FFMPEG_CMD) \
+		-c:v libx265 -crf 18 -preset medium -pix_fmt yuv420p10le \
+		-x265-params "aq-mode=3:no-sao=1" \
+		-colorspace bt709 -color_primaries bt709 -color_trc bt709 -color_range tv \
+		-tag:v hvc1 -movflags +faststart \
+		$(OUT)
+
+av1:
+	$(FFMPEG_CMD) \
+		-c:v libsvtav1 -crf 24 -preset 6 -pix_fmt yuv420p10le \
+		-svtav1-params "film-grain=0:enable-overlays=0" \
+		-colorspace bt709 -color_primaries bt709 -color_trc bt709 -color_range tv \
+		$(OUT)