Note:  Build ETM software: set HDR_ETM_RESHAPER 1  in TypeDef.H.  set to 0 build original HM16.7.

1. commandline of usage: 	
	Encoding: "ReshapeLuma.txt" and "ReshapeChroma.txt" are output metadata files generated by HDRTools-ETM, see notes of HDRTools-ETM for more details.
	> TAppEncoder.exe -c encoder_randomaccess_main10_HDRv3.cfg --AtfEnableFlag=1 --AtfCbCrFile="ReshapeChroma.txt" --AtfLumaFile="ReshapeLuma.txt"
	
	Decoding: two output YUV files are generated (dec.yuv and out_mapped_dec.yuv, together with two text files containing parsed/translated reshaping info used for each frame (optional and solely for sanity check purpose).
	> TAppDecoder.exe -b str.bin -o dec.yuv -omy out_mapped_dec.yuv --AtfEnableFlag=1 [ --AtfCbCrFile="dec_ReshapeChroma.txt" --AtfLumaFile="dec_ReshapeLuma.txt" ]
	Note: [] means optional.
	
3. Process of Mapped YUV to EXR, same as in Anchor Process (for Full range and Std range outputs, the SourceSampleRange flag need to be set properly.
		From out_mapped_dec.yuv to EXR:  > HDRConvert -f HDRConvertYCbCr420ToEXR2020.cfg -p SourceSampleRange=[0/1]
	
2. Features
	a) reshaper PPS/SPS syntax is complete and aligned with ETM spec.
	b) reshaper PPS is only signalled when necessary such as at scene change or IRAP.
	c) Report reshaper syntax bitrate. 


