Level 3.1
E268863
Level 3.1 is a specific H.264/AVC profile level that defines constraints on video resolution, bitrate, and processing requirements for compatible encoders and decoders.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Level 3.1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2448051 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Level 3.1 Context triple: [H.264, hasLevel, Level 3.1]
-
A.
L3
L3 is a particle physics experiment that operated at CERN’s Large Electron–Positron Collider, designed to study high-energy electron–positron collisions and probe the Standard Model.
-
B.
Pine Level
Pine Level is a small town located in Johnston County in the state of North Carolina, United States.
-
C.
Foundation
Foundation is a landmark science fiction novel by Isaac Asimov that launched his influential series about the rise and fall of a galactic empire and the science of psychohistory.
-
D.
Main Observation Level
The Main Observation Level is the primary viewing platform of Toronto’s CN Tower, offering panoramic city and lake vistas to visitors.
-
E.
B3
B3 is the third-generation Volkswagen Passat, produced in the early 1990s and known for its aerodynamic, grille-less front design and improved engineering over its predecessors.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Level 3.1 Target entity description: Level 3.1 is a specific H.264/AVC profile level that defines constraints on video resolution, bitrate, and processing requirements for compatible encoders and decoders.
-
A.
L3
L3 is a particle physics experiment that operated at CERN’s Large Electron–Positron Collider, designed to study high-energy electron–positron collisions and probe the Standard Model.
-
B.
Pine Level
Pine Level is a small town located in Johnston County in the state of North Carolina, United States.
-
C.
Foundation
Foundation is a landmark science fiction novel by Isaac Asimov that launched his influential series about the rise and fall of a galactic empire and the science of psychohistory.
-
D.
Main Observation Level
The Main Observation Level is the primary viewing platform of Toronto’s CN Tower, offering panoramic city and lake vistas to visitors.
-
E.
B3
B3 is the third-generation Volkswagen Passat, produced in the early 1990s and known for its aerodynamic, grille-less front design and improved engineering over its predecessors.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
H.264/AVC level
ⓘ
video coding level ⓘ |
| appliesTo |
H.264 decoders
ⓘ
H.264 ⓘ
surface form:
H.264 encoders
|
| compatibleWith |
Baseline profile
ⓘ
High profile ⓘ Main profile ⓘ |
| constrains |
maximum decoded picture buffer size
ⓘ
maximum frame size in macroblocks ⓘ maximum macroblock processing rate ⓘ maximum video bit rate ⓘ |
| defines |
constraints on bitrate
ⓘ
constraints on processing requirements ⓘ constraints on video resolution ⓘ |
| hasLevelNumber | 3.1 ⓘ |
| hasMaxBitrateBaselineProfile | 14000 kbit/s ⓘ |
| hasMaxBitrateHighProfile | 14000 kbit/s ⓘ |
| hasMaxBitrateMainProfile | 14000 kbit/s ⓘ |
| hasMaxCPBSizeBaselineProfile | 30000 kbit ⓘ |
| hasMaxCPBSizeHighProfile | 30000 kbit ⓘ |
| hasMaxCPBSizeMainProfile | 30000 kbit ⓘ |
| hasMaxDecodedPictureBufferInFrames | 18 ⓘ |
| hasMaxFrameSizeInMacroblocks | 3600 ⓘ |
| hasMaxMacroblocksPerSecond | 108000 ⓘ |
| hasMaxMBsPerFrameExample | 1280x720 uses 3600 macroblocks ⓘ |
| hasMaxMBsPerSecondExample | 1280x720 at 30 fps uses 108000 macroblocks per second ⓘ |
| hasMaxVideoResolutionExample |
1280x720 at 30 fps
ⓘ
720x480 at 60 fps ⓘ 720x576 at 50 fps ⓘ |
| isHigherThan | Level 3.0 ⓘ |
| isLowerThan | Level 3.2 ⓘ |
| partOf |
H.264
ⓘ
surface form:
H.264/AVC standard
ISO/IEC 14496-10 ⓘ
surface form:
ISO/IEC 14496-10 (MPEG-4 AVC)
H.264 ⓘ
surface form:
ITU-T H.264
|
| requires | decoder capable of processing 108000 macroblocks per second ⓘ |
| specifiedIn | H.264/AVC level table ⓘ |
| targetUseCase | standard-definition and lower-end HD video ⓘ |
| usedIn |
consumer video devices
ⓘ
mobile devices ⓘ streaming video services ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Level 3.1 Description of subject: Level 3.1 is a specific H.264/AVC profile level that defines constraints on video resolution, bitrate, and processing requirements for compatible encoders and decoders.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.