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40th Meeting: Geneva, CH, October 2025 2025-10-01 23:31
Multiview HEVC Reference SW implementation status
Abstract
This contribution discusses the current development status of a reference SW implementation for the currently defined multiview profiles of the HEVC standard. It is reported that the HM reference SW was extended to include support for all multiview profiles, including multiview monochrome profiles, in both the encoder and the decoder. The main limitation of the implementation is that currently the SW cannot be configured to support layers of different chroma format, bitdepth, or resolution capabilities. Other functionalities, such as motion compensated temporal filtering and film grain analysis and insertion may also be of limited use when multiview functionalities are desired. Such support is expected to be added in subsequent versions. It is proposed that the provided code is integrated with the official HM reference SW.
JVET-AN0292 Multiview HEVC Reference SW implementation status [S. Choi, S. Paluri, D. Podborski, A. M. Tourapis (Apple)] [late]

This contribution discusses the current development status of a reference software implementation for the currently defined multiview profiles of the HEVC standard. It is reported that the HM reference software was extended to include support for all multiview profiles, including multiview monochrome profiles, in both the encoder and the decoder. The main limitation of the implementation is that currently the software cannot be configured to support layers of different chroma format, bitdepth, or resolution capabilities. Other functionalities, such as motion compensated temporal filtering and film grain analysis and insertion may also be of limited use when multiview functionalities are desired. Such support is expected to be added in subsequent versions. It is proposed that the provided code is integrated with the official HM reference software.

It was requested that the software should be provided in gitlab, and in a style that allows to identify the changes relative to the current HM.

Generally, the integration of existing and new multiview profiles in HM (transferring the old ones from HTM) is an excellent step forward.

It was also requested to start generating bitstreams for the remaining multiview profiles in JVET-AM1008, and provide a list of bitstreams until the next meeting. Also for the cases where different chroma format, bitdepth, resolution, or profile IDC is needed in the different layers, these might be generated separately, and also be helpful in the software development fully supporting such cases.

AHG3: Test conditions and metrics (2)

Contributions in this area were discussed during 1610–1700 on Monday 6 Oct. 2025 (chaired by JRO).

Decisions
It was also requested to start generating bitstreams for the remaining multiview profiles in JVET-AM1008, and provide a list of bitstreams until the next meeting. Also for the cases where different chroma format, bitdepth, resolution, or profile IDC is needed in the different layers, these might be generated separately, and also be helpful in the software development fully supporting such cases.
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