{ "$schema": "http://json-schema.org/draft-07/schema#", "title": "CompositionPlaylist", "description": "Root CPL structure — defines a complete IMF composition.\n\n# Spec-required vs `Option` policy (FIX-7 audit)\n\nThe parser is intentionally lenient: every spec-required element that isn't strictly necessary to **construct** a valid `CompositionPlaylist` is exposed as `Option` (or via a `default = \"…\"` serde attribute). Missing-required-field violations are surfaced as catalogue diagnostics by the validator (`validate_cpl`) rather than as parse errors, so a caller can still inspect the parsed structure of a non-conformant CPL.\n\nField-by-field map against ST 2067-3 §6 / §7 (2013 / 2016 — the 2020 edition reuses the 2016 schema verbatim):\n\n| Field | Type | Spec status | |---------------------------|------------------|-------------------------------------------| | `id` | `ImfUuid` | required §6.1 — parse error if missing | | `annotation` | `Option<…>` | optional §6.2 | | `issue_date` | `String` | required §6.3 — parse error if missing | | `issuer` | `Option<…>` | optional §6.4 | | `creator` | `Option<…>` | optional §6.5 | | `content_originator` | `Option<…>` | optional §6.6 | | `content_title` | `LanguageString` | required §6.7 — parse error if missing | | `content_kind` | concrete (default) | required §6.8 — `default_content_kind` | | `content_version_list` | `Option<…>` | optional §6.10 | | `essence_descriptor_list` | `Option<…>` | **required** per ST 2067-2 §6.1.5 — | | | | parser-lenient; absence is reported by | | | | `validate_cpl` as Error | | `edit_rate` | `Option<…>` | required §6.13 — parser-lenient; absence | | | | reported by `validate_cpl` | | `total_running_time` | `Option` | optional §6.14 | | `locale_list` | `Option<…>` | optional §6.15 | | `extension_properties` | `Option<…>` | optional §6.16 | | `composition_timecode` | `Option<…>` | optional §6.9 | | `segment_list` | `SegmentList` | required §6.17 — parse error if missing | | `has_signer`/`has_signature` | `bool` | reflect presence in raw XML (§8 signatures unparsed) | | `source_xml` | `Option` | retained when parsed from XML; absent for JSON-deserialised |\n\nFive fields are spec-required but stored as `Option` (with `default` on the serde side) to support the parser-lenient model: `content_kind` (defaults via `default_content_kind`), `content_version_list`, `essence_descriptor_list`, `edit_rate`, `locale_list`. The validator surfaces missing-required findings against the ST 2067-3 prose.", "type": "object", "required": [ "ContentTitle", "Id", "IssueDate", "SegmentList" ], "properties": { "Annotation": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageString" }, { "type": "null" } ] }, "CompositionTimecode": { "default": null, "anyOf": [ { "$ref": "#/definitions/CompositionTimecode" }, { "type": "null" } ] }, "ContentKind": { "default": "unknown", "allOf": [ { "$ref": "#/definitions/ContentKindElement" } ] }, "ContentOriginator": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageString" }, { "type": "null" } ] }, "ContentTitle": { "$ref": "#/definitions/LanguageString" }, "ContentVersionList": { "default": null, "anyOf": [ { "$ref": "#/definitions/ContentVersionList" }, { "type": "null" } ] }, "Creator": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageString" }, { "type": "null" } ] }, "EditRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "EssenceDescriptorList": { "default": null, "anyOf": [ { "$ref": "#/definitions/EssenceDescriptorList" }, { "type": "null" } ] }, "ExtensionProperties": { "default": null, "anyOf": [ { "$ref": "#/definitions/ExtensionProperties" }, { "type": "null" } ] }, "Id": { "$ref": "#/definitions/ImfUuid" }, "IssueDate": { "type": "string" }, "Issuer": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageString" }, { "type": "null" } ] }, "LocaleList": { "default": null, "anyOf": [ { "$ref": "#/definitions/LocaleList" }, { "type": "null" } ] }, "SegmentList": { "$ref": "#/definitions/SegmentList" }, "TotalRunningTime": { "default": null, "type": [ "string", "null" ] } }, "definitions": { "AudienceElement": { "description": "The `` element carries an optional `scope` attribute.", "type": "object", "properties": { "$text": { "default": null, "type": [ "string", "null" ] }, "@scope": { "default": null, "type": [ "string", "null" ] } } }, "AudioSubDescriptors": { "description": "SubDescriptors for audio (WAVEPCMDescriptor)", "type": "object", "properties": { "SoundfieldGroupLabelSubDescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/SoundfieldGroupLabelSubDescriptor" }, { "type": "null" } ] } } }, "CDCIDescriptor": { "description": "CDCI video descriptor (YCbCr content)", "type": "object", "properties": { "ActiveHeight": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ActiveWidth": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "AlphaSampleDepth": { "description": "Table 12: AlphaSampleDepth — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "AlphaTransparency": { "description": "Table 8: AlphaTransparency — shall not be present", "default": null, "type": [ "string", "null" ] }, "BlackRefLevel": { "description": "CDCI Descriptor: Black Ref Level (Table 13)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "CodingEquations": { "default": null, "anyOf": [ { "$ref": "#/definitions/CodingEquations" }, { "type": "null" } ] }, "ColorPrimaries": { "default": null, "anyOf": [ { "$ref": "#/definitions/ColorPrimaries" }, { "type": "null" } ] }, "ColorRange": { "description": "CDCI Descriptor: Color Range (Table 13)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ColorSiting": { "description": "CDCI Descriptor: Color Siting (Table 12) Shall be 0 (CoSiting) but some encoders write a label string (e.g. \"CoSiting\").", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ComponentDepth": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "DisplayF2Offset": { "description": "Generic Picture Essence Descriptor: DisplayF2Offset", "default": null, "type": [ "integer", "null" ], "format": "int32" }, "DisplayHeight": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "DisplayWidth": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "FieldDominance": { "description": "Table 8: FieldDominance — shall be present if interlaced, shall not be present if progressive", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "FrameLayout": { "description": "Generic Picture Essence Descriptor: Frame Layout \"FullFrame\" (00h, progressive) or \"SeparateFields\" (01h, interlaced)", "default": null, "type": [ "string", "null" ] }, "HorizontalSubsampling": { "description": "CDCI Descriptor: Horizontal Subsampling (Table 12) 1 = 4:4:4, 2 = 4:2:2", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ImageAlignmentOffset": { "description": "Table 8: ImageAlignmentOffset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ImageAspectRatio": { "default": null, "type": [ "string", "null" ] }, "ImageEndOffset": { "description": "Table 8: ImageEndOffset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ImageStartOffset": { "description": "Table 8: ImageStartOffset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "InstanceUID": { "default": null, "type": [ "string", "null" ] }, "LinkedTrackID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "PaddingBits": { "description": "Table 12: PaddingBits — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "int32" }, "PictureCompression": { "default": null, "anyOf": [ { "$ref": "#/definitions/VideoCodec" }, { "type": "null" } ] }, "ReversedByteOrder": { "description": "Table 12: ReversedByteOrder — shall not be present", "default": null, "type": [ "string", "null" ] }, "SampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "SampledHeight": { "description": "Table 8: SampledHeight — shall not be present or shall be equal to StoredHeight", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampledWidth": { "description": "Table 8: SampledWidth — shall not be present or shall be equal to StoredWidth", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampledXOffset": { "description": "Table 8: SampledXOffset — shall not be present or shall be 0", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampledYOffset": { "description": "Table 8: SampledYOffset — shall not be present or shall be 0", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "StoredF2Offset": { "description": "Table 8: StoredF2Offset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "int32" }, "StoredHeight": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "StoredWidth": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SubDescriptors": { "default": null, "anyOf": [ { "$ref": "#/definitions/VideoSubDescriptors" }, { "type": "null" } ] }, "TransferCharacteristic": { "default": null, "anyOf": [ { "$ref": "#/definitions/TransferCharacteristic" }, { "type": "null" } ] }, "VerticalSubsampling": { "description": "CDCI Descriptor: Vertical Subsampling (Table 12) Shall be 1", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "WhiteRefLevel": { "description": "CDCI Descriptor: White Ref Level (Table 13)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 } } }, "CodingEquations": { "description": "Coding equations SMPTE Universal Label, per ST 2067-21:2023 §7.2.3.\n\nDefines the Y'C'BC'R matrix coefficients. Required for CDCI descriptors; R'G'B' descriptors (COLOR.6) do not use CodingEquations. Byte 8 (registry version) is masked per ST 298M (Architecture Decision 1).", "oneOf": [ { "description": "ITU-R BT.601 — COLOR.1/COLOR.2 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.02010000`", "type": "string", "enum": [ "Bt601" ] }, { "description": "ITU-R BT.709 — COLOR.3/COLOR.4 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.02020000`", "type": "string", "enum": [ "Bt709" ] }, { "description": "ITU-R BT.2020 Non-Constant Luminance (Annex D) — COLOR.5/7/8 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.02060000`", "type": "string", "enum": [ "Bt2020Ncl" ] }, { "description": "Unrecognised UL; the original string is preserved.", "type": "object", "required": [ "Unknown" ], "properties": { "Unknown": { "type": "string" } }, "additionalProperties": false } ] }, "ColorPrimaries": { "description": "Color primaries SMPTE Universal Label, per ST 2067-21:2023 §7.2.4 and SMPTE Registers.\n\nDiscriminating bytes are in positions 13-16 of the UL (last 4 bytes of the 16-byte label), with the common prefix `060e2b34.0401XXXX.04010101.03......`. Byte 8 (the registry version) is masked per ST 298M (Architecture Decision 1).", "oneOf": [ { "description": "ITU-R BT.601-7 625-line system — COLOR.1 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.03020000` (byte 8 masked)", "type": "string", "enum": [ "Bt601_625" ] }, { "description": "ITU-R BT.601-7 525-line system — COLOR.2 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.03010000` (byte 8 masked)", "type": "string", "enum": [ "Bt601_525" ] }, { "description": "ITU-R BT.709 / SMPTE 274M — COLOR.3/COLOR.4 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.03030000` (byte 8 masked)", "type": "string", "enum": [ "Bt709" ] }, { "description": "ITU-R BT.2020 / BT.2100 — COLOR.5/COLOR.7/COLOR.8 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.03040000` (byte 8 masked)", "type": "string", "enum": [ "Bt2020" ] }, { "description": "DCI P3 (theatre projection, D60 white point) Canonical UL: `060e2b34.04010100.04010101.03050000` (byte 8 masked)", "type": "string", "enum": [ "DciP3" ] }, { "description": "P3 D65 (display P3, D65 white point) — COLOR.6 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.03060000` (byte 8 masked)", "type": "string", "enum": [ "P3D65" ] }, { "description": "Unrecognised UL; the original string is preserved.", "type": "object", "required": [ "Unknown" ], "properties": { "Unknown": { "type": "string" } }, "additionalProperties": false } ] }, "CompositionTimecode": { "type": "object", "properties": { "TimecodeDropFrame": { "type": [ "boolean", "null" ] }, "TimecodeRate": { "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "TimecodeStartAddress": { "type": [ "string", "null" ] } } }, "ContainerConstraintsSubDescriptor": { "description": "ContainerConstraintsSubDescriptor — presence required by ST 2067-202 §5", "type": "object", "properties": { "InstanceID": { "default": null, "type": [ "string", "null" ] } } }, "ContentKindElement": { "anyOf": [ { "type": "string" }, { "type": "object", "required": [ "$text" ], "properties": { "$text": { "type": "string" }, "@scope": { "type": [ "string", "null" ] } } } ] }, "ContentMaturityRating": { "description": "A single content maturity rating entry per ST 2067-3 / ST 2067-21 §5.1.3.", "type": "object", "required": [ "Agency" ], "properties": { "Agency": { "type": "string" }, "Audience": { "default": null, "anyOf": [ { "$ref": "#/definitions/AudienceElement" }, { "type": "null" } ] }, "Rating": { "default": null, "type": [ "string", "null" ] } } }, "ContentMaturityRatingList": { "type": "object", "required": [ "ContentMaturityRating" ], "properties": { "ContentMaturityRating": { "type": "array", "items": { "$ref": "#/definitions/ContentMaturityRating" } } } }, "ContentVersion": { "type": "object", "required": [ "Id" ], "properties": { "Id": { "type": "string" }, "LabelText": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageString" }, { "type": "null" } ] } } }, "ContentVersionList": { "type": "object", "required": [ "ContentVersion" ], "properties": { "ContentVersion": { "type": "array", "items": { "$ref": "#/definitions/ContentVersion" } } } }, "DCTimedTextDescriptor": { "description": "DC Timed Text descriptor (subtitles/captions)", "type": "object", "properties": { "InstanceID": { "default": null, "type": [ "string", "null" ] }, "LinkedTrackID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "NamespaceURI": { "default": null, "type": [ "string", "null" ] }, "RFC5646LanguageTagList": { "description": "Comma-separated RFC 5646 language tags for this timed text track", "default": [], "type": "array", "items": { "$ref": "#/definitions/LanguageTag" } }, "SampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] } } }, "EditRate": { "description": "A rational frame/sample rate as specified in SMPTE ST 2067-3 §6.\n\nIn XML the value is a space-separated pair: `\"60000 1001\"`. Common values: `24000/1001` (≈23.976), `24/1`, `25/1`, `30/1`, `30000/1001` (≈29.97), `48000/1`, `96000/1`.", "type": "object", "required": [ "denominator", "numerator" ], "properties": { "denominator": { "type": "integer", "format": "uint32", "minimum": 0.0 }, "numerator": { "type": "integer", "format": "uint32", "minimum": 0.0 } } }, "EssenceDescriptor": { "type": "object", "required": [ "Id" ], "properties": { "CDCIDescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/CDCIDescriptor" }, { "type": "null" } ] }, "DCTimedTextDescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/DCTimedTextDescriptor" }, { "type": "null" } ] }, "IABEssenceDescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/IABEssenceDescriptor" }, { "type": "null" } ] }, "ISXDDataEssenceDescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/ISXDDataEssenceDescriptor" }, { "type": "null" } ] }, "Id": { "$ref": "#/definitions/ImfUuid" }, "RGBADescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/RGBADescriptor" }, { "type": "null" } ] }, "WAVEPCMDescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/WAVEPCMDescriptor" }, { "type": "null" } ] } } }, "EssenceDescriptorList": { "type": "object", "required": [ "EssenceDescriptor" ], "properties": { "EssenceDescriptor": { "type": "array", "items": { "$ref": "#/definitions/EssenceDescriptor" } } } }, "ExtensionProperties": { "type": "object", "properties": { "ApplicationIdentification": { "default": null, "type": [ "string", "null" ] }, "MaxCLL": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "MaxFALL": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 } } }, "ForcedNarrativeSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "HearingImpairedCaptionsSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "IABChannelSubDescriptor": { "description": "Presence-only stub for ST 2067-201:2026 Annex E `IABChannelSubDescriptor`.\n\nThe 2026 spec defines the full item set in Table E.1 (`IABBedMetaID`, `IABChannelID`, `IABAudioDescription`, `IABAudioDescriptionText`); imferno's CPL parser only needs to count occurrences to fire the `IabChannelSubDescriptorRecommended` warning, so the inner shape is intentionally permissive — any nested content deserialises into the catch-all map without affecting presence.", "type": "object", "properties": { "IABBedMetaID": { "description": "Annex E §E.2 — IAB Bed MetaID of the associated BedDefinition.", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "IABChannelID": { "description": "Annex E §E.2 — Channel ID within the bed.", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 } } }, "IABEssenceDescriptor": { "description": "IAB (Immersive Audio Bitstream) essence descriptor — Dolby Atmos", "type": "object", "properties": { "AudioSampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "ChannelCount": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "Codec": { "description": "ST 2067-201 §5.9: Codec item shall NOT be present.", "default": null, "type": [ "string", "null" ] }, "ContainerFormat": { "description": "ST 2067-201 §5.3: ContainerFormat shall be the IAB essence container UL.", "default": null, "type": [ "string", "null" ] }, "ElectrospatialFormulation": { "description": "ST 2067-201 §5.9: ElectrospatialFormulation shall NOT be present.", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "InstanceID": { "default": null, "type": [ "string", "null" ] }, "LinkedTrackID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "QuantizationBits": { "description": "ST 2067-201 §5.9: QuantizationBits shall be 24.", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "SoundCompression": { "default": null, "type": [ "string", "null" ] }, "SubDescriptors": { "default": null, "anyOf": [ { "$ref": "#/definitions/IABSubDescriptors" }, { "type": "null" } ] } } }, "IABSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "IABSoundfieldLabelSubDescriptor": { "description": "IAB soundfield label sub-descriptor — contains language for Atmos tracks", "type": "object", "properties": { "InstanceID": { "default": null, "type": [ "string", "null" ] }, "MCALabelDictionaryID": { "description": "ST 2067-201 §5.9: MCALabelDictionaryID shall be `urn:smpte:ul:060e2b34.0401010d.03020221.00000000`.", "default": null, "type": [ "string", "null" ] }, "MCATagName": { "default": null, "type": [ "string", "null" ] }, "MCATagSymbol": { "default": null, "anyOf": [ { "$ref": "#/definitions/McaTagSymbol" }, { "type": "null" } ] }, "RFC5646SpokenLanguage": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageTag" }, { "type": "null" } ] } } }, "IABSubDescriptors": { "description": "SubDescriptors for IAB essence", "type": "object", "properties": { "IABChannelSubDescriptor": { "description": "ST 2067-201:2026 Annex E — IAB Channel SubDescriptor entries. Optional in 2021 (and earlier — silently dropped), recommended in 2026 (\"should contain one instance for each channel of each BedDefinition\"). Captured as a raw count via a bag struct so downstream code can probe presence without the parser needing to model every field defined in Annex E Table E.1.", "default": [], "type": "array", "items": { "$ref": "#/definitions/IABChannelSubDescriptor" } }, "IABSoundfieldLabelSubDescriptor": { "default": null, "anyOf": [ { "$ref": "#/definitions/IABSoundfieldLabelSubDescriptor" }, { "type": "null" } ] } } }, "ISXDDataEssenceDescriptor": { "description": "ISXD (Immersive Sound XML Data) essence descriptor — Dolby Atmos sidecar format", "type": "object", "properties": { "DataEssenceCoding": { "default": null, "type": [ "string", "null" ] }, "InstanceID": { "default": null, "type": [ "string", "null" ] }, "LinkedTrackID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "NamespaceURI": { "default": null, "type": [ "string", "null" ] }, "SampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "SubDescriptors": { "default": null, "anyOf": [ { "$ref": "#/definitions/IsxdSubDescriptors" }, { "type": "null" } ] } } }, "ISXDSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "ImfUuid": { "description": "A SMPTE IMF UUID, serialised as a bare UUID string (e.g. \"0eb3d1b9-b77b-4d3f-bbe5-7c69b15dca85\")", "type": "string", "format": "uuid" }, "IsxdSubDescriptors": { "description": "SubDescriptors for ISXD essence descriptor", "type": "object", "properties": { "ContainerConstraintsSubDescriptor": { "description": "ST 2067-202: ContainerConstraintsSubDescriptor shall be present.", "default": null, "anyOf": [ { "$ref": "#/definitions/ContainerConstraintsSubDescriptor" }, { "type": "null" } ] } } }, "J2CLayout": { "description": "J2CLayout — pixel component layout for JPEG 2000 (§6.5.2)", "type": "object", "properties": { "RGBAComponent": { "default": [], "type": "array", "items": { "$ref": "#/definitions/RGBALayoutComponent" } } } }, "J2KComponentSizing": { "description": "Individual J2K component sizing", "type": "object", "properties": { "Ssiz": { "description": "Component bit depth minus 1", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "XRSiz": { "description": "Horizontal separation of sample", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "YRSiz": { "description": "Vertical separation of sample", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 } } }, "J2KExtendedCapabilities": { "description": "J2K Extended Capabilities (ISO/IEC 15444-15)", "type": "object", "properties": { "Pcap": { "description": "Profile capabilities (Pcap)", "default": null, "type": [ "integer", "null" ], "format": "uint64", "minimum": 0.0 } } }, "JPEG2000SubDescriptor": { "description": "JPEG 2000 Picture Sub Descriptor (ST 422 / ST 2067-21 Table 14)", "type": "object", "properties": { "CodingStyleDefault": { "description": "Table 14: Coding Style — shall be present", "default": null, "type": [ "string", "null" ] }, "Csiz": { "description": "Number of components (Csiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "InstanceID": { "default": null, "type": [ "string", "null" ] }, "J2CLayout": { "description": "Table 14: J2CLayout — shall be present (§6.5.2)", "default": null, "anyOf": [ { "$ref": "#/definitions/J2CLayout" }, { "type": "null" } ] }, "J2KExtendedCapabilities": { "description": "Table 14: J2KExtendedCapabilities — shall be present if ISO/IEC 15444-15 coding", "default": null, "anyOf": [ { "$ref": "#/definitions/J2KExtendedCapabilities" }, { "type": "null" } ] }, "PictureComponentSizing": { "description": "Picture component sizing information", "default": null, "anyOf": [ { "$ref": "#/definitions/PictureComponentSizing" }, { "type": "null" } ] }, "QuantizationDefault": { "description": "Quantization Default", "default": null, "type": [ "string", "null" ] }, "Rsiz": { "description": "Decoder capabilities (Rsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "XOsiz": { "description": "Image X offset (XOsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "XTOsiz": { "description": "Tile X offset (XTOsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "XTsiz": { "description": "Tile width (XTsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "Xsiz": { "description": "Image width (Xsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "YOsiz": { "description": "Image Y offset (YOsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "YTOsiz": { "description": "Tile Y offset (YTOsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "YTsiz": { "description": "Tile height (YTsiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "Ysiz": { "description": "Image height (Ysiz)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 } } }, "LanguageList": { "type": "object", "required": [ "Language" ], "properties": { "Language": { "type": "array", "items": { "$ref": "#/definitions/LanguageTag" } } } }, "LanguageString": { "anyOf": [ { "type": "string" }, { "type": "object", "required": [ "$text" ], "properties": { "$text": { "type": "string" }, "@language": { "type": [ "string", "null" ] } } } ] }, "LanguageTag": { "description": "An RFC 5646 language tag, e.g. `\"en\"`, `\"fr-CA\"`, `\"zh-Hant\"`.\n\nValidation is minimal (non-empty, trimmed). Full BCP 47 validation is out of scope for the parser layer.", "type": "string" }, "Locale": { "type": "object", "properties": { "ContentMaturityRatingList": { "default": null, "anyOf": [ { "$ref": "#/definitions/ContentMaturityRatingList" }, { "type": "null" } ] }, "LanguageList": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageList" }, { "type": "null" } ] }, "RegionList": { "default": null, "anyOf": [ { "$ref": "#/definitions/RegionList" }, { "type": "null" } ] } } }, "LocaleList": { "description": "LocaleList - Content locale information", "type": "object", "properties": { "Locale": { "default": [], "type": "array", "items": { "$ref": "#/definitions/Locale" } } } }, "MainAudioSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "MainImageSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "MarkerInfo": { "type": "object", "required": [ "Label", "Offset" ], "properties": { "Annotation": { "default": null, "type": [ "string", "null" ] }, "Label": { "$ref": "#/definitions/MarkerLabelElement" }, "Offset": { "type": "integer", "format": "uint64", "minimum": 0.0 } } }, "MarkerLabelElement": { "anyOf": [ { "type": "string" }, { "type": "object", "required": [ "$text" ], "properties": { "$text": { "type": "string" }, "@scope": { "type": [ "string", "null" ] } } } ] }, "MarkerSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "McaTagSymbol": { "description": "MCA (Multi-Channel Audio) tag symbol per SMPTE ST 377-4.\n\nUsed in `` in `SoundfieldGroupLabelSubDescriptor` and `AudioChannelLabelSubDescriptor`.", "oneOf": [ { "type": "string", "enum": [ "Left", "Right", "Center", "Lfe", "LeftSurround", "RightSurround", "LeftSideSurround", "RightSideSurround", "LeftRearSurround", "RightRearSurround" ] }, { "description": "5.1 Surround", "type": "string", "enum": [ "Sg51" ] }, { "description": "7.1 Surround", "type": "string", "enum": [ "Sg71" ] }, { "description": "7.1 DS (Dolby Surround)", "type": "string", "enum": [ "Sg71Ds" ] }, { "description": "Stereo / Lt-Rt matrixed", "type": "string", "enum": [ "SgSt" ] }, { "description": "Mono", "type": "string", "enum": [ "SgMono" ] }, { "description": "IAB (Immersive Audio Bitstream / Dolby Atmos)", "type": "string", "enum": [ "Iab" ] }, { "description": "Unrecognised; the original string is preserved.", "type": "object", "required": [ "Other" ], "properties": { "Other": { "type": "string" } }, "additionalProperties": false } ] }, "PHDRMetadataTrackSubDescriptor": { "description": "PHDR (Dolby Vision) metadata track sub-descriptor", "type": "object", "properties": { "InstanceID": { "default": null, "type": [ "string", "null" ] }, "PHDRMetadataTrackSubDescriptor_DataDefinition": { "default": null, "type": [ "string", "null" ] }, "PHDRMetadataTrackSubDescriptor_SimplePayloadSID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "PHDRMetadataTrackSubDescriptor_SourceTrackID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 } } }, "PictureComponentSizing": { "description": "Picture component sizing information", "type": "object", "properties": { "J2KComponentSizing": { "default": [], "type": "array", "items": { "$ref": "#/definitions/J2KComponentSizing" } } } }, "RGBADescriptor": { "description": "RGBA video descriptor (JPEG 2000 RGB content)", "type": "object", "properties": { "AlphaMaxRef": { "description": "Table 10: AlphaMaxRef — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "AlphaMinRef": { "description": "Table 10: AlphaMinRef — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "AlphaTransparency": { "description": "Table 8: AlphaTransparency — shall not be present", "default": null, "type": [ "string", "null" ] }, "CodingEquations": { "default": null, "anyOf": [ { "$ref": "#/definitions/CodingEquations" }, { "type": "null" } ] }, "ColorPrimaries": { "default": null, "anyOf": [ { "$ref": "#/definitions/ColorPrimaries" }, { "type": "null" } ] }, "ComponentMaxRef": { "description": "RGBA Descriptor: Component Max Ref (Table 10/11)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ComponentMinRef": { "description": "RGBA Descriptor: Component Min Ref (Table 10/11)", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "DisplayF2Offset": { "description": "Generic Picture Essence Descriptor: DisplayF2Offset", "default": null, "type": [ "integer", "null" ], "format": "int32" }, "DisplayHeight": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "DisplayWidth": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "FieldDominance": { "description": "Table 8: FieldDominance — shall be present if interlaced, shall not be present if progressive", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "FrameLayout": { "description": "Generic Picture Essence Descriptor: Frame Layout \"FullFrame\" (00h, progressive) or \"SeparateFields\" (01h, interlaced)", "default": null, "type": [ "string", "null" ] }, "ImageAlignmentOffset": { "description": "Table 8: ImageAlignmentOffset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ImageAspectRatio": { "default": null, "type": [ "string", "null" ] }, "ImageEndOffset": { "description": "Table 8: ImageEndOffset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ImageStartOffset": { "description": "Table 8: ImageStartOffset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "InstanceID": { "default": null, "type": [ "string", "null" ] }, "LinkedTrackID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "Palette": { "description": "Table 10: Palette — shall not be present", "default": null, "type": [ "string", "null" ] }, "PaletteLayout": { "description": "Table 10: PaletteLayout — shall not be present", "default": null, "type": [ "string", "null" ] }, "PictureCompression": { "default": null, "anyOf": [ { "$ref": "#/definitions/VideoCodec" }, { "type": "null" } ] }, "SampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "SampledHeight": { "description": "Table 8: SampledHeight — shall not be present or shall be equal to StoredHeight", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampledWidth": { "description": "Table 8: SampledWidth — shall not be present or shall be equal to StoredWidth", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampledXOffset": { "description": "Table 8: SampledXOffset — shall not be present or shall be 0", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampledYOffset": { "description": "Table 8: SampledYOffset — shall not be present or shall be 0", "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "ScanningDirection": { "description": "RGBA Descriptor: Scanning Direction (Table 10) Shall be \"ScanningDirection_LeftToRightTopToBottom\" (00h)", "default": null, "type": [ "string", "null" ] }, "StoredF2Offset": { "description": "Table 8: StoredF2Offset — shall not be present", "default": null, "type": [ "integer", "null" ], "format": "int32" }, "StoredHeight": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "StoredWidth": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SubDescriptors": { "default": null, "anyOf": [ { "$ref": "#/definitions/VideoSubDescriptors" }, { "type": "null" } ] }, "TransferCharacteristic": { "default": null, "anyOf": [ { "$ref": "#/definitions/TransferCharacteristic" }, { "type": "null" } ] } } }, "RGBALayoutComponent": { "description": "RGBA component entry within J2CLayout or PixelLayout", "type": "object", "properties": { "Code": { "description": "Absent in intentionally malformed corpus files (e.g. RGBAError1). Default to empty string so the parser succeeds; the validator flags missing codes.", "default": "", "type": "string" }, "ComponentSize": { "default": 0, "type": "integer", "format": "uint32", "minimum": 0.0 } } }, "RegionList": { "type": "object", "required": [ "Region" ], "properties": { "Region": { "type": "array", "items": { "type": "string" } } } }, "Resource": { "type": "object", "required": [ "Id", "IntrinsicDuration" ], "properties": { "Annotation": { "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageString" }, { "type": "null" } ] }, "EditRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "EntryPoint": { "default": null, "type": [ "integer", "null" ], "format": "uint64", "minimum": 0.0 }, "Hash": { "default": null, "type": [ "string", "null" ] }, "Id": { "$ref": "#/definitions/ImfUuid" }, "IntrinsicDuration": { "type": "integer", "format": "uint64", "minimum": 0.0 }, "KeyId": { "default": null, "anyOf": [ { "$ref": "#/definitions/ImfUuid" }, { "type": "null" } ] }, "Marker": { "default": [], "type": "array", "items": { "$ref": "#/definitions/MarkerInfo" } }, "RepeatCount": { "default": null, "type": [ "integer", "null" ], "format": "uint64", "minimum": 0.0 }, "SourceDuration": { "default": null, "type": [ "integer", "null" ], "format": "uint64", "minimum": 0.0 }, "SourceEncoding": { "default": null, "anyOf": [ { "$ref": "#/definitions/ImfUuid" }, { "type": "null" } ] }, "TrackFileId": { "default": null, "anyOf": [ { "$ref": "#/definitions/ImfUuid" }, { "type": "null" } ] } } }, "ResourceList": { "type": "object", "properties": { "Resource": { "default": [], "type": "array", "items": { "$ref": "#/definitions/Resource" } } } }, "Segment": { "type": "object", "required": [ "Id", "SequenceList" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "SequenceList": { "$ref": "#/definitions/SequenceList" } } }, "SegmentList": { "type": "object", "properties": { "Segment": { "default": [], "type": "array", "items": { "$ref": "#/definitions/Segment" } } } }, "SequenceList": { "type": "object", "properties": { "ForcedNarrativeSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/ForcedNarrativeSequence" } }, "HearingImpairedCaptionsSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/HearingImpairedCaptionsSequence" } }, "IABSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/IABSequence" } }, "ISXDSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/ISXDSequence" } }, "MainAudioSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/MainAudioSequence" } }, "MainImageSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/MainImageSequence" } }, "MarkerSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/MarkerSequence" } }, "SubtitlesSequence": { "default": [], "type": "array", "items": { "$ref": "#/definitions/SubtitlesSequence" } } } }, "SoundfieldGroupLabelSubDescriptor": { "description": "Soundfield group label sub-descriptor — contains language and audio content kind", "type": "object", "properties": { "MCAAudioContentKind": { "default": null, "type": [ "string", "null" ] }, "MCATagName": { "default": null, "type": [ "string", "null" ] }, "MCATagSymbol": { "default": null, "anyOf": [ { "$ref": "#/definitions/McaTagSymbol" }, { "type": "null" } ] }, "RFC5646SpokenLanguage": { "description": "RFC 5646 language tag — field name varies between vendors", "default": null, "anyOf": [ { "$ref": "#/definitions/LanguageTag" }, { "type": "null" } ] } } }, "SubtitlesSequence": { "type": "object", "required": [ "Id", "ResourceList", "TrackId" ], "properties": { "Id": { "$ref": "#/definitions/ImfUuid" }, "ResourceList": { "$ref": "#/definitions/ResourceList" }, "TrackId": { "$ref": "#/definitions/ImfUuid" } } }, "TransferCharacteristic": { "description": "Opto-electronic transfer function SMPTE Universal Label, per ST 2067-21:2023 §7.2.2.\n\nUsed in `` elements in CPL EssenceDescriptors. Byte 8 (registry version) is masked per ST 298M (Architecture Decision 1).", "oneOf": [ { "description": "Linear (scene-referred, e.g. ACES) Canonical UL: `060e2b34.04010100.04010101.01010000`", "type": "string", "enum": [ "Linear" ] }, { "description": "ITU-R BT.709 — COLOR.1/2/3 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.01020000`", "type": "string", "enum": [ "Bt709" ] }, { "description": "SMPTE 240M (legacy 1080i) Canonical UL: `060e2b34.04010100.04010101.01030000`", "type": "string", "enum": [ "Smpte240M" ] }, { "description": "xvYCC 709 — COLOR.4 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.01080000`", "type": "string", "enum": [ "XvYcc709" ] }, { "description": "ITU-R BT.2020 (Annex A) — COLOR.5 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.01090000`", "type": "string", "enum": [ "Bt2020" ] }, { "description": "SMPTE ST 2084 (PQ / Perceptual Quantiser) — COLOR.6/7 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.010a0000`", "type": "string", "enum": [ "PqSt2084" ] }, { "description": "ITU-R BT.2100 Hybrid Log-Gamma — COLOR.8 per ST 2067-21:2023 Table 3 Canonical UL: `060e2b34.04010100.04010101.010b0000`", "type": "string", "enum": [ "Hlg" ] }, { "description": "Unrecognised UL; the original string is preserved.", "type": "object", "required": [ "Unknown" ], "properties": { "Unknown": { "type": "string" } }, "additionalProperties": false } ] }, "VideoCodec": { "description": "Video codec identified by SMPTE PictureEssenceCoding Universal Label.\n\nPer ST 2067-21:2023 §7.2.5 and Annex F. The full UL-to-codec mapping lives here. Called once at parse time; no runtime string decoding in downstream crates.\n\nNote: VideoCodec ULs have varying item-specific bytes, so we match on byte patterns rather than exact 16-byte comparisons. Byte 8 is still masked.", "oneOf": [ { "description": "JPEG 2000 — generic/unspecified profile (ST 422 §A, byte [14]=0x01 without a recognized broadcast sub-level, or other unspecified node UL). Not a recognized IMF Application Profile #2E profile.", "type": "string", "enum": [ "Jpeg2000" ] }, { "description": "JPEG 2000 — IMF 2K profile (ST 422 §A.2, byte [14]=0x02). Supports stored widths ≤ 2048 per ST 2067-21.", "type": "string", "enum": [ "Jpeg2000Imf2k" ] }, { "description": "JPEG 2000 — IMF 4K profile (ST 422 §A.3, byte [14]=0x03). Supports stored widths 2049–4096 per ST 2067-21.", "type": "string", "enum": [ "Jpeg2000Imf4k" ] }, { "description": "JPEG 2000 — Broadcast Contribution profile (ST 422 §A.1, byte [14]=0x01, sub-levels 0x11–0x17). Supports stored widths ≤ 3840 per ST 2067-21.", "type": "string", "enum": [ "Jpeg2000Broadcast" ] }, { "description": "JPEG 2000 Part 15 — High Throughput (ISO 15444-15, ST 2067-21 §6.2.5). Only allowed in App #2E from spec year 2021 onward.", "type": "string", "enum": [ "Jpeg2000Ht" ] }, { "description": "VC-5 (SMPTE ST 2117)", "type": "string", "enum": [ "Vc5" ] }, { "description": "MPEG-2 (ISO 13818-2)", "type": "string", "enum": [ "Mpeg2" ] }, { "description": "H.264 / AVC (ISO 14496-10)", "type": "string", "enum": [ "H264" ] }, { "description": "H.265 / HEVC (ISO 23008-2)", "type": "string", "enum": [ "H265" ] }, { "description": "Apple ProRes (used in some IMF Application profiles)", "type": "string", "enum": [ "ProRes" ] }, { "description": "AV1 (AOMedia Video 1)", "type": "string", "enum": [ "Av1" ] }, { "description": "Unrecognised UL; the original string is preserved.", "type": "object", "required": [ "Unknown" ], "properties": { "Unknown": { "type": "string" } }, "additionalProperties": false } ] }, "VideoSubDescriptors": { "description": "SubDescriptors for video (RGBA/CDCI) descriptors", "type": "object", "properties": { "JPEG2000SubDescriptor": { "description": "JPEG 2000 Picture Sub Descriptor — Table 14 constraints", "default": null, "anyOf": [ { "$ref": "#/definitions/JPEG2000SubDescriptor" }, { "type": "null" } ] }, "PHDRMetadataTrackSubDescriptor": { "description": "Presence indicates Dolby Vision HDR", "default": null, "anyOf": [ { "$ref": "#/definitions/PHDRMetadataTrackSubDescriptor" }, { "type": "null" } ] } } }, "WAVEPCMDescriptor": { "description": "WAVE PCM audio descriptor", "type": "object", "properties": { "AudioSampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "ChannelCount": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "InstanceID": { "default": null, "type": [ "string", "null" ] }, "LinkedTrackID": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "QuantizationBits": { "default": null, "type": [ "integer", "null" ], "format": "uint32", "minimum": 0.0 }, "SampleRate": { "default": null, "anyOf": [ { "$ref": "#/definitions/EditRate" }, { "type": "null" } ] }, "SubDescriptors": { "default": null, "anyOf": [ { "$ref": "#/definitions/AudioSubDescriptors" }, { "type": "null" } ] } } } } }