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fix some JCCR related indentation, encapsulation, and descriptive text, add --PYUV to software manual

This should implement the following from the meeting notes:

For CTC, it was initially agreed to use the new syntax to achieve
the chroma QP settings proposed in O0186 for SDR, N0221 for PQ,
O0433 for HLG. For the joint table, use the average of the Cb and Cr
tables. Below QP = 16, chroma and luma QP should be equal for CEs
using low QP.

Decision (CTC): This was further discussed in the closing plenary
on Friday. It was suggested to keep the anchor QP settings for PQ
and HLG as in CTC of prior meeting cycle. For SDR, see above.
Below QP = 16, chroma and luma QP should be equal for CEs using low
QP.

Add PROF support in encoder_lowdelay_P_vtm.cfg

Add a cfg option "FastIntraPass", and use it for turning on/off the fast algorithm of intra pass coding in RDO. In cfg files, the parameter FastIntraPass is set as 0 for RA and 1 for LDB/LDP.

Has zero impact on the bitstream, because the encoder sets the slice type to P, if list 1 is empty.

Hendry authored Jun 26, 2019 and Karsten Suehring committed Jun 26, 2019

update the nonCTC cfg files

Added 'FastMIP' encoder config parameter, removed condition on intra period and picture height in IntraSearch.cpp.

- also adds documentation for ReWriteParamSets parameter

MMVD simplification by removing the two largest distance entries in the
MMVD distance table using encoder only change method.
To make the number of MMVD distance entries configurable by the
software, additionally adding 'MmvdDisNum' as a new option in the cfg files.

keep max TU in #define for possibility of keeping the parameter

TU max/min size are constants in the VVC draft. Reflecting this in the software.

AMVR (formely IMV) now has only one mode, which used to be mode #2
- remove SPS imv_mode parameter
- remove encoder configuration for mode #1 (mode #2 replaces mode #1)
- adapt config files to refer tp mode #1
- rename SPS syntax elements and access functions to AMVR

Note: IMV to AMVR renaming in other parts of the software should be done by proponents.

JVET-M0247 1. Add early termination and encoder search method. 2. Only enable it for RA configuration.

- sps_sao_enabled_flag
- sps_alf_enabled_flag
- pcm_enabled_flag
- pcm_sample_bit_depth_luma_minus1
- pcm_sample_bit_depth_chroma_minus1
- log2_min_pcm_luma_coding_block_size_minus3
- log2_diff_max_min_pcm_luma_coding_block_size
- pcm_loop_filter_disabled_flag
- sps_ref_wraparound_enabled_flag
- sps_ref_wraparound_offset
- sps_temporal_mvp_enabled_flag
- sps_sbtmvp_enabled_flag
- sps_bdof_enabled_flag

change default param value of C[b,r]QpOffsetDualTree from 1 to 0, change value of C[b,r]QpOffset from 0 to 1 in CTC configs

This reverts merge request !105

    to w×h >= 64 luma samples

    See merge request jvet/VVCSoftware_VTM!34

Squashed commit of the following:

commit fb98d9c6de449d04646b4c9ad561114c9561442a
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Wed Oct 31 08:18:02 2018 +0800

    fix the variables for L0100 as suggested

commit 552f201ac2e00012a0657eee4d1a38a17bbd2306
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Wed Oct 31 00:52:58 2018 +0800

    fix the interaction

commit 3f0f36f4068399f2b5c3dbefe5fcb1bbe2b1344d
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Tue Oct 30 12:17:43 2018 +0800

    fix distroy buffer size for L0100

commit 649dd1d2b1c4aa5da783eb51c8633b4c47d312ea
Merge: 859c574 5c46b9be
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Tue Oct 30 10:19:56 2018 +0800

    update the codebase

commit 859c574bcacfac4cf0f099402a69341667981a93
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Tue Oct 30 10:14:03 2018 +0800

    update the codebase

commit 694008b474f2dd924c567664e160637912e8e87d
Merge: 0ac1683 e9bf7ed5
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Mon Oct 29 12:57:36 2018 +0800

    update the codebase

commit 0ac1683267e5e17048843ea409275bc102290c1a
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Mon Oct 29 11:23:51 2018 +0800

    modify MHIntra as suggested

commit a375e85c06a6e353562fea4ac89e44748f536c41
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Thu Oct 25 11:48:44 2018 +0800

    merge MHIntra into VTM