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VFW_E_TIME_EXPIRED
Meaning
Windows documents VFW_E_TIME_EXPIRED as “This object cannot be used anymore as its time has expired”. Here, a queued or synchronization object is used after its validity interval has expired.
Relevant contract
This result occurs in the data-delivery and timing contract between DirectShow filters. Reference time, media time, sample flags, buffering and seeking formats are separate metadata channels and must not be substituted for one another without an explicit conversion.
Start with the first producer of the sample or seeking state and the immediate consumer.
Conditions that can produce it
- Cause 1: the caller waits too long before using the returned command object.
- Cause 2: playback state advances past the command window.
- Cause 3: a stale object is retained across seek or graph rebuild.
Evidence worth preserving
- Evidence 1: object creation and use timestamps.
- Evidence 2: current playback position and graph generation.
- Evidence 3: seek, stop or domain events between acquisition and use.
Correction strategy
- Action 1: consume time-sensitive objects promptly.
- Action 2: discard them after seek or topology changes.
- Action 3: request a fresh synchronization object for the current playback generation.
Retry and recovery
Retry rule: Retry by obtaining a new object for the current state; repeating the operation on the expired object cannot succeed.
How it differs from nearby results
VFW_E_TIME_ALREADY_PASSED concerns scheduling a command for a past time, whereas it concerns an object whose usable lifetime has ended.
Example incident
A UI stores a DVD command synchronization object while the user seeks elsewhere, then waits on it minutes later; reacquiring the command avoids it.
Official Microsoft references
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