m42634/quant: change dead-zone from configurable to proportional

This commit removes the ability to control the quantization dead-zone
parameters since they have always been identical to the step size.

Rather than hard-coding the dead-zone size parameter to be the same as
the step size, this commit:

 - Sets the dead-zone to be ±(2 * stepsize / 3) rather than ±stepsize

 - Does not narrow the interval following the dead-zone.

Extracted-from: http://wg11.sc29.org/svn/repos/MPEG-I/Part5-PointCloudCompression/CE/CE0/CE0.1/trunk@1357


Reintegrated-by:  <dflynn@blackberry.com>

cfg/ctc-lossless-geom-lossy-attrs.yaml

@@ -26,27 +26,25 @@ categories:
            - levelOfDetailCount: 9
            - searchRange: 0
            - dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
-         - quantizationSteps: &citytunnelq1mmquantizationStepsText
+         - quantizationSteps:
              r01: 1 2 4 8 16 32 64 128 128
              r02: 1 2 4 8 16 32 64 64 66
              r03: 1 2 4 8 16 32 32 32 34
              r04: 1 2 4 8 8 8 16 16 16
              r05: 1 2 4 4 4 4 4 8 8
              r06: 0 1 1 1 2 2 2 2 2
-         - quantizationDeadZoneSizes: *citytunnelq1mmquantizationStepsText
          - attribute: color
 
       tollbooth_q1mm:
         encflags:
          - *commonAttr
-         - quantizationSteps: &tollboothq1mmquantizationStepsText
+         - quantizationSteps:
              r01: 1 2 4 8 16 32 64 128 128
              r02: 1 2 4 8 16 32 32 64 64
              r03: 1 2 4 8 16 16 16 32 32
              r04: 1 2 4 8 8 8 8 10 16
              r05: 1 2 4 4 4 4 4 4 6
              r06: 0 0 0 0 0 0 1 1 2
-         - quantizationDeadZoneSizes: *tollboothq1mmquantizationStepsText
          - attribute: color
 
   ##
@@ -65,25 +63,23 @@ categories:
       citytunnel_q1mm:
         encflags:
          - *commonAttr
-         - quantizationSteps: &citytunnelq1mmquantizationStepsReflec
+         - quantizationSteps:
              r01: 286 571 1143 2286 4571 9143 18286 36571 65536
              r02:  77 154  308  615 1231 2462  4923  9846 19692
              r03:  29  57  114  229  457  914  1829  3657  7314
              r04:  10  20   40   80  160  320   640  1280  2560
              r05:   2   5   10   20   40   80   160   320   640
              r06:   0   1    2    4    8   16    16    32    32
-         - quantizationDeadZoneSizes: *citytunnelq1mmquantizationStepsReflec
          - attribute: reflectance
 
       tollbooth_q1mm:
         encflags:
          - *commonAttr
-         - quantizationSteps: &tollboothq1mmquantizationStepsReflec
+         - quantizationSteps:
              r01: 286 571 1143 2286 4571 9143 18286 36571 65536
              r02: 100 200  400  800 1600 3200  6400 12800 25600
              r03:  50 100  200  400  800 1600  3200  6400 12800
              r04:  17  33   67  133  267  533  1067  2133  4267
              r05:   4   8   16   32   64  128   256   512  1024
              r06:   1   2    4    8   16   32    32    32    32
-         - quantizationDeadZoneSizes: *tollboothq1mmquantizationStepsReflec
          - attribute: reflectance

cfg/ctc-lossy-geom-lossy-attrs.yaml

@@ -41,13 +41,6 @@ categories:
              r04: 0 1 2 4 4 4
              r05: 0 1 2 4 4 4
              r06: 0 1 2 4 4 4
-         - quantizationDeadZoneSizes:
-             r01: 2 4
-             r02: 1 2 4 4
-             r03: 0 1 2 4 4
-             r04: 0 1 2 4 4 4
-             r05: 0 1 2 4 4 4
-             r06: 0 1 2 4 4 4
          - searchRange: 0
          - attribute: reflectance
 

cfg/lossless-geom-lossy-reflectance/citytunnel_q1mm/r01/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 286 571 1143 2286 4571 9143 18286 36571 65536
-quantizationDeadZoneSizes: 286 571 1143 2286 4571 9143 18286 36571 65536
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/citytunnel_q1mm/r02/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 77 154  308  615 1231 2462  4923  9846 19692
-quantizationDeadZoneSizes: 77 154  308  615 1231 2462  4923  9846 19692
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/citytunnel_q1mm/r03/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 29  57  114  229  457  914  1829  3657  7314
-quantizationDeadZoneSizes: 29  57  114  229  457  914  1829  3657  7314
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/citytunnel_q1mm/r04/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 10  20   40   80  160  320   640  1280  2560
-quantizationDeadZoneSizes: 10  20   40   80  160  320   640  1280  2560
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/citytunnel_q1mm/r05/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 2   5   10   20   40   80   160   320   640
-quantizationDeadZoneSizes: 2   5   10   20   40   80   160   320   640
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/citytunnel_q1mm/r06/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 0   1    2    4    8   16    16    32    32
-quantizationDeadZoneSizes: 0   1    2    4    8   16    16    32    32
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/tollbooth_q1mm/r01/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 286 571 1143 2286 4571 9143 18286 36571 65536
-quantizationDeadZoneSizes: 286 571 1143 2286 4571 9143 18286 36571 65536
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/tollbooth_q1mm/r02/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 100 200  400  800 1600 3200  6400 12800 25600
-quantizationDeadZoneSizes: 100 200  400  800 1600 3200  6400 12800 25600
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/tollbooth_q1mm/r03/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 50 100  200  400  800 1600  3200  6400 12800
-quantizationDeadZoneSizes: 50 100  200  400  800 1600  3200  6400 12800
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/tollbooth_q1mm/r04/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 17  33   67  133  267  533  1067  2133  4267
-quantizationDeadZoneSizes: 17  33   67  133  267  533  1067  2133  4267
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/tollbooth_q1mm/r05/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 4   8   16   32   64  128   256   512  1024
-quantizationDeadZoneSizes: 4   8   16   32   64  128   256   512  1024
 attribute: reflectance

cfg/lossless-geom-lossy-reflectance/tollbooth_q1mm/r06/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 1   2    4    8   16   32    32    32    32
-quantizationDeadZoneSizes: 1   2    4    8   16   32    32    32    32
 attribute: reflectance

cfg/lossless-geom-lossy-texture/citytunnel_q1mm/r01/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 1 2 4 8 16 32 64 128 128
-quantizationDeadZoneSizes: 1 2 4 8 16 32 64 128 128
 attribute: color

cfg/lossless-geom-lossy-texture/citytunnel_q1mm/r02/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 1 2 4 8 16 32 64 64 66
-quantizationDeadZoneSizes: 1 2 4 8 16 32 64 64 66
 attribute: color

cfg/lossless-geom-lossy-texture/citytunnel_q1mm/r03/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 1 2 4 8 16 32 32 32 34
-quantizationDeadZoneSizes: 1 2 4 8 16 32 32 32 34
 attribute: color

cfg/lossless-geom-lossy-texture/citytunnel_q1mm/r04/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 1 2 4 8 8 8 16 16 16
-quantizationDeadZoneSizes: 1 2 4 8 8 8 16 16 16
 attribute: color

cfg/lossless-geom-lossy-texture/citytunnel_q1mm/r05/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 1 2 4 4 4 4 4 8 8
-quantizationDeadZoneSizes: 1 2 4 4 4 4 4 8 8
 attribute: color

cfg/lossless-geom-lossy-texture/citytunnel_q1mm/r06/encoder.cfg

@@ -8,5 +8,4 @@ levelOfDetailCount: 9
 searchRange: 0
 dist2: 134217728 33554432 8388608 2097152 524288 131072 32768 8192 0
 quantizationSteps: 0 1 1 1 2 2 2 2 2
-quantizationDeadZoneSizes: 0 1 1 1 2 2 2 2 2
 attribute: color