MP4 - Online Linux Manual PageSection : 3
Updated : Version 0.9
Source : Cisco Systems Inc.
Note : MP4 File Format Library

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NAMEMP4ConvertFromTrackDuration − Convert a duration from the track time scale to a specified time scale.

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SYNTAX#include <mp4.h> u_int64_t MP4ConvertFromTrackDuration(
MP4FileHandle hFile,
MP4TrackId trackId,
MP4Duration duration,
u_int32_t newTimeScale
)

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ARGUMENTShFile  Specifies the mp4 file to which the operation applies. trackId  Specifies the track from which the duration originates. duration  Specifies the duration that is to be converted. newTimeScale  Specifies the new time scale in ticks per second to which the duration should be converted.

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RETURN VALUESUpon success, the duration in the new time scale units. Upon error, 0.

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DESCRIPTIONMP4ConvertFromTrackDuration converts a duration such as a sample duration from the track time scale to another specified time scale. This can be used by a player application to map all track samples to a common time scale.

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SEE ALSOMP4(3) MP4GetSampleDuration(3) MP4ConvertToTrackDuration(3) 0

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