1MP4(3) MP4 File Format Library MP4(3)
2
3
4
6 MP4ConvertToTrackTimestamp - Convert a timestamp from a specified time
7 scale to the track time scale.
8
10 #include <mp4.h>
11
12 MP4Timestamp MP4ConvertToTrackTimestamp(
13 MP4FileHandle hFile,
14 MP4TrackId trackId,
15 u_int64_t timestamp,
16 u_int32_t oldTimeScale
17 )
18
20 hFile Specifies the mp4 file to which the operation applies.
21
22 trackId
23 Specifies the track from which the duration originates.
24
25 timestamp
26 Specifies the timestamp that is to be converted.
27
28 oldTimeScale
29 Specifies the time scale in ticks per second in which the time‐
30 stamp is currently expressed.
31
33 Upon success, the timestamp in the track time scale units. Upon error,
34 MP4_INVALID_TIMESTAMP.
35
37 MP4ConvertToTrackTimestamp converts a timestamp such as a sample start
38 time from the specified time scale to the track time scale.
39
41 MP4(3) MP4ConvertFromTrackTimestamp(3)
42
43
44
45Cisco Systems Inc. Version 0.9 MP4(3)