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39th Meeting: Daejeon, KR, March 2025 2025-04-04 10:34
[AHG7][AHG17] Further consideration of common test condition
Authors: Tomohiro Ikai Sharp Kai-Wen Liang Sharp SLA Sharp
Abstract
At the last meeting, JVET-AK0232 proposed the development of constraint test conditions and suggested that a better balance between coding efficiency and encoding time should be considered for CTC as well. This document further explores this notion by analyzing experiment results on ECM-16.1 under various MTT depth settings. It is recommended to configure the encoder setting at the next standard to approximately 2x to 4.5x encoding time compared to VTM.
Meeting Notes
JVET-AL0245 [AHG7][AHG17] Further consideration of common test condition [T. Ikai, K.-W. Liang (Sharp)] [late]

Was discussed in BoG JVET-AL0337

JVET-AL0245 [AHG7][AHG17] Further consideration of common test condition [T. Ikai, K.-W. Liang (Sharp)] [late]

Was discussed in BoG JVET-AL0337

JVET-AL0245 [AHG7][AHG17] Further consideration of common test condition [T. Ikai, K.-W. Liang (Sharp)] [late]

See also section 4.4.

At the last meeting, JVET-AK0232 proposed the development of constraint test conditions and suggested that a better balance between coding efficiency and encoding time should be considered for CTC as well. This document further explores this notion by analyzing experiment results on ECM-16.1 under various MTT depth settings. It is recommended to configure the encoder setting at the next standard to approximately 2x to 4.5x encoding time compared to VTM.

It is proposed to use MTT depth below for ECM CTC.

--MaxMTTHierarchyDepth=2 --MaxMTTHierarchyDepthISliceL=2

--MaxMTTHierarchyDepthISliceC=2 --MaxMTTHierarchyDepthByTid=221111

Was already presented in JVET on Mar. 28 - to be further discussed in BoG JVET-AL0337.

Cited:
JVET-AL0304 X
ARCHIVE :
ecm161_mmh122_mtt111111_vs_ecm161.xlsm ecm161_mmh122_mtt111111_vs_vtm235.xlsm ecm161_mmh222_mtt111111_vs_ecm161.xlsm ecm161_mmh222_mtt111111_vs_vtm235.xlsm ecm161_mmh222_mtt211111_vs_ecm161.xlsm ecm161_mmh222_mtt211111_vs_vtm235.xlsm ecm161_mmh222_mtt221111_vs_ecm161.xlsm ecm161_mmh222_mtt221111_vs_vtm235.xlsm ecm161_mmh222_mtt222111_vs_ecm161.xlsm ecm161_mmh222_mtt222111_vs_vtm235.xlsm ecm161_mmh222_mtt222211_vs_ecm161.xlsm ecm161_mmh222_mtt222211_vs_vtm235.xlsm ecm161_mmh222_mtt222221_vs_ecm161.xlsm ecm161_mmh222_mtt222221_vs_vtm235.xlsm ecm161_mmh222_mtt222222_vs_ecm161.xlsm ecm161_mmh222_mtt222222_vs_vtm235.xlsm ecm161_vs_vtm235.xlsm JVET-AL0245_CTC-v4.docx JVET-AL0245_summary.xlsx
Decisions
Was discussed in BoG JVET-AL0337
Was discussed in BoG JVET-AL0337
Was already presented in JVET on Mar. 28 - to be further discussed in BoG JVET-AL0337.
Citation