{"uid":"cap_FHF15yBWGns8vw_LiFN_u","slug":"video-timecode-calc-3-2-pulldown-cadence-mapper-35cbc056","name":"Video & Timecode Calc – 3:2 Pulldown Cadence Mapper","description":"2:3 pulldown cadence: which film frames land in which video fields and frames when 24 fps film is telecined.","url":"https://video-calc.x402tookit.com/pulldown-32?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["filmFrames"],"properties":{"filmFrames":{"type":"integer","description":"Number of film frames to map, 1 to 240"},"startPhase":{"type":"integer","description":"0 (default) starts on a 2-field frame; 1 starts on a 3-field frame"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"fields":{"type":["null","number"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"disclaimer":{"type":["null","string"]},"filmFrames":{"type":["null","number"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"startPhase":{"type":["null","number"]},"videoFrames":{"type":["array","null"],"items":{"type":"string"}},"fieldSequence":{"type":["null","string"]},"mixedFrameCount":{"type":["null","number"]},"videoFrameCount":{"type":["null","number"]},"filmFpsAfterSlowdown":{"type":["null","number"]},"videoFpsAfterSlowdown":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_P8cUnNbtA8BZcC_Jjaz0I","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Maps 24fps film frames to their corresponding video fields and frames when telecined via 2:3 (3:2) pulldown to 29.97fps video.","exampleAgentPrompt":"Show me the 3:2 pulldown cadence for 24 film frames starting on a 2-field frame — I need to know which video fields and frames each film frame lands in after telecine.","exampleUseCases":[{"title":"Identify mixed frames before editing","prompt":"I'm editing telecined footage and need to know which video frames are mixed — can you map the 3:2 pulldown cadence for 60 film frames starting at phase 0 so I know which frames to flag?"},{"title":"Reverse telecine planning for VFX","prompt":"I need to pull back 29.97 video to 24fps film. Can you show me the full pulldown sequence for 48 film frames starting on a 3-field frame so I know the field pattern to remove?"},{"title":"Teaching telecine cadence to a student","prompt":"Can you lay out the 2:3 pulldown field sequence for just 10 film frames starting at phase 0, so I can see clearly how each film frame maps to video fields?"}],"resultDescription":"Returns a detailed breakdown of the 3:2 pulldown cadence including: a field sequence string (e.g. AABBBC), an array of video frame labels for each film frame, the total number of video frames and fields produced, a count of mixed frames (frames containing fields from two different film frames), the effective film and video fps after the 0.1% slowdown, and summary metadata.","failureModes":["filmFrames out of range (must be 1–240) returns validation error","startPhase not 0 or 1 causes bad request","Missing filmFrames query parameter returns error","Payment failure or missing x402 header returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need to understand or visualize the exact 3:2 pulldown cadence for a specific number of film frames — particularly useful for reverse telecine workflows, identifying mixed/interlaced frames in telecined footage, or teaching/documenting how 24fps film maps to 29.97fps NTSC video fields. Prefer this over manual calculation when you need per-frame field assignments rather than just a frame rate ratio.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:20:08.398Z","isFirstParty":false,"canonicalSlug":"video-timecode-calc-3-2-pulldown-cadence-mapper-35cbc056"}