shaka::media::PtsUnwrapper Class Reference

#include <timestamp_util.h>

Public Member Functions
int64_t	Unwrap (int64_t wrapped_pts)
void	Reset ()
	Resets the unwrapper state (for stream discontinuities).
bool	IsInitialized () const

Detailed Description

Unwraps 33-bit PTS/DTS timestamps to produce monotonically increasing 64-bit timestamps, handling wrap-around transitions.

This class maintains state across multiple timestamp observations and detects when a wrap-around occurs, automatically adjusting the output to maintain monotonicity.

Example usage: PtsUnwrapper unwrapper; unwrapper.Unwrap(8589934500); // Returns 8589934500 (first call) unwrapper.Unwrap(100); // Returns 8589934692 (detected wrap) unwrapper.Unwrap(200); // Returns 8589934792 (continues)

Thread-safety: NOT thread-safe. Each stream should have its own instance.

Definition at line 70 of file timestamp_util.h.

Member Function Documentation

IsInitialized()

bool shaka::media::PtsUnwrapper::IsInitialized ( ) const

inline

Returns true if the unwrapper has been initialized with at least one timestamp.

Definition at line 85 of file timestamp_util.h.

Reset()

void shaka::media::PtsUnwrapper::Reset

(

)

Resets the unwrapper state (for stream discontinuities).

Definition at line 88 of file timestamp_util.cc.

Unwrap()

int64_t shaka::media::PtsUnwrapper::Unwrap

(

int64_t

wrapped_pts

)

Unwraps a wrapped timestamp to a monotonically increasing value.

Parameters

wrapped_pts

33-bit PTS/DTS value (may wrap around)

Returns

Unwrapped 64-bit timestamp (monotonically increasing)

Definition at line 36 of file timestamp_util.cc.

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The documentation for this class was generated from the following files:

• packager/media/base/timestamp_util.h
• packager/media/base/timestamp_util.cc