{"schema":"record/v1","id":"art_01M5NN6W2T7D2W58YGXM7QZ1H7","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What does the public MPEG V-PCC/V3C reference software (mpeg-pcc-tmc2 release-v25.0) say about its role, build dependencies, how occupancy, geometry and attribute video are encoded, and under what licence?","summary":"MPEG's V-PCC reference software (TMC2, release-v25.0) is an experimental reference, not an efficient implementation: it codes a point cloud as separate occupancy, geometry and attribute 2D video streams using external video codecs selected by codecId (JM, HM, VTM, SHM, or FFmpeg on a branch), with stacked configuration files where later files override earlier ones; its test example expects an external MPEG dataset path. The code is under an ISO/IEC BSD-style licence that expressly grants no patent rights, so patent clearance is a separate question.","status":"active","body":{"text":"MPEG's V-PCC reference software (TMC2, release-v25.0) is an experimental reference, not an efficient implementation: it codes a point cloud as separate occupancy, geometry and attribute 2D video streams using external video codecs selected by codecId (JM, HM, VTM, SHM, or FFmpeg on a branch), with stacked configuration files where later files override earlier ones; its test example expects an external MPEG dataset path. The code is under an ISO/IEC BSD-style licence that expressly grants no patent rights, so patent clearance is a separate question.\n\nCurator qualifications: Repository documentation read 2026-10-22; nothing built or encoded; not legal advice on patents. README.options.md details and the mpeg.org Part 5 page not re-read.\n\nLimitations: Repository documentation read 2026-10-22; nothing built or encoded; not legal advice on patents.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://github.com/MPEGGroup/mpeg-pcc-tmc2/tree/d47e6ce879206b8a7881ecabce9e1ad2e8254a38","note":"mpeg-pcc-tmc2 doc/README.about.md @d47e6ce8; README.md lines 30-40, 97-110; COPYING lines 1-6"},{"url":"https://www.mpeg.org/standards/MPEG-I/5/","note":"mpeg-pcc-tmc2 doc/README.about.md @d47e6ce8; README.md lines 30-40, 97-110; COPYING lines 1-6"}]},"categories":["T15","T19"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://github.com/MPEGGroup/mpeg-pcc-tmc2/tree/d47e6ce879206b8a7881ecabce9e1ad2e8254a38","claim":"MPEG's V-PCC reference software (TMC2, release-v25.0) is an experimental reference, not an efficient implementation: it codes a point cloud as separate occupancy, geometry and attribute 2D video streams using external video codecs selected by codecId (JM, HM, VTM, SHM, or FFmpeg on a branch), with stacked configuration files where later files override earlier ones; its test example expects an external MPEG dataset path. 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The code is under an ISO/IEC BSD-style licence that expressly grants no patent rights, so patent clearance is a separate question.\n\nCurator qualifications: Repository documentation read 2026-10-22; nothing built or encoded; not legal advice on patents. README.options.md details and the mpeg.org Part 5 page not re-read.\n\nLimitations: Repository documentation read 2026-10-22; nothing built or encoded; not legal advice on patents.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://github.com/MPEGGroup/mpeg-pcc-tmc2/tree/d47e6ce879206b8a7881ecabce9e1ad2e8254a38","note":"mpeg-pcc-tmc2 doc/README.about.md @d47e6ce8; README.md lines 30-40, 97-110; COPYING lines 1-6"},{"url":"https://www.mpeg.org/standards/MPEG-I/5/","note":"mpeg-pcc-tmc2 doc/README.about.md @d47e6ce8; README.md lines 30-40, 97-110; COPYING lines 1-6"}]},"tags":[],"type":"article","links":[],"title":"What does the public MPEG V-PCC/V3C reference software (mpeg-pcc-tmc2 release-v25.0) say about its role, build dependencies, how occupancy, geometry and attribute video are encoded, and under what licence?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"MPEG's V-PCC reference software (TMC2, release-v25.0) is an experimental reference, not an efficient implementation: it codes a point cloud as separate occupancy, geometry and attribute 2D video streams using external video codecs selected by codecId (JM, HM, VTM, SHM, or FFmpeg on a branch), with stacked configuration files where later files override earlier ones; its test example expects an external MPEG dataset path. 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