{ "$schema": "/api/schemas/documents.schema.json", "apiVersion": "1.0.0", "generatedAt": "2026-07-10T01:11:27.061Z", "sourcePath": "src/main/data/docs", "docId": "10.5594-M00242", "document": { "abstract": "Commercial insertion, promo insertion, studio routing, camera switching, tape editing—each of these basic operations involves switching video and audio. We want to continue to perform these operations even as we move from using uncompressed video to using MPEG-2 compressed video, but these operations are far from trivial. This paper describes the MPEG bitstream constraints required to facilitate switching—or “splicing”—MPEG bitstreams. It also describes the refinements to these constraints being developed by the SMPTE Working Group on Switching and Synchronization which have led to an emerging SMPTE standard for “Splice Points for MPEG-2 Transport Streams”, which specifies bitstream constraints for both Seamless and Non-Seamless splicing. It is ironic that while splicing is likely the simplest method of switching between MPEG-2 bitstreams, it is probably the most difficult to understand. This paper intends to alleviate the mystery of splicing by explaining the underlying principles clearly so that this simple yet effective technique may be put into wide use throughout the emerging digital television industry.", "abstract$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00242.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "authors": [ { "affiliation": "Sarnoff Corp Princeton, NJ, USA", "name": "Norm Hurst" }, { "affiliation": "Avid Technology, Inc. Tewksbury, MA, USA", "name": "Katie Cornog" } ], "authors$meta": { "confidence": "high", "note": "Object form (schema 2.3.0) migrated from string form via migrateAuthorsToObjectForm.js; bio/affiliation backfilled from _source/SMPTE/HIGHWIRE/ NLM ++", "source": "parsed", "updated": "2026-06-23T00:04:25.562Z", "version": "authors-migrate-object-form@v1" }, "contentType": "tutorial", "contentType$meta": { "confidence": "high", "note": "Title review 2026-07-09: not a research paper — reclassified 'tutorial'", "originalValue": "summary-abstract", "source": "resolved", "updated": "2026-07-09T19:12:47.628Z", "version": "contenttype-fixes@v1" }, "copyright": { "holder": "Society of Motion Picture and Television Engineers, Inc.", "holder$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00242.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "year": "1997", "year$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00242.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "copyright$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00242.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docId": "10.5594-M00242", "docId$meta": { "confidence": "high", "note": "Derived from DOI 10.5594/M00242", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docLabel": "SMPTE Meetings and Conferences ( November 1997)", "docLabel$meta": { "confidence": "medium", "note": "Composed from venue title, volume/issue and date", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docTitle": "MPEG Splicing: Tutorial and Proposed SMPTE Standard", "docTitle$meta": { "confidence": "high", "note": "Title updated from SMPTE canonical repository (2026-07-09 drift review: canonical richer/cleaner; TeX/sup/inf converted to Unicode) (smpte-canonical-audit/canonicalLibrary.*.json)", "originalValue": "MPEG Splicing", "source": "parsed", "updated": "2026-07-09T15:05:12.415Z", "version": "smpte-canonical-repo@v1" }, "docType": "Conference Paper", "docType$meta": { "confidence": "high", "note": "NLM
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