1MP4(3) MP4 File Format Library MP4(3)
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6 MP4GetTrackType - Get the track type
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9 #include <mp4.h>
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11 const char* MP4GetTrackType(
12 MP4FileHandle hFile,
13 MP4TrackId trackId
14 )
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17 hFile Specifies the mp4 file to which the operation applies.
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19 trackId
20 Specifies the track for which the type is desired.
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24 Upon success, a string that indicates the track type. Upon an error,
25 NULL.
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29 MP4GetTrackType gets the type of the track with the specified track id.
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31 Note: the library does not provide a MP4SetTrackType function, the
32 track type needs to be specified when the track is created, e.g.
33 MP4AddSystemsTrack(MP4_OCI_TRACK_TYPE).
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35 Known track types are:
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37 MP4_OD_TRACK_TYPE "odsm"
38 MP4_SCENE_TRACK_TYPE "sdsm"
39 MP4_AUDIO_TRACK_TYPE "soun"
40 MP4_VIDEO_TRACK_TYPE "vide"
41 MP4_HINT_TRACK_TYPE "hint"
42 MP4_CLOCK_TRACK_TYPE "crsm"
43 MP4_MPEG7_CLOCK_TYPE "m7sm"
44 MP4_OCI_TRACK_TYPE "ocsm"
45 MP4_IPMP_TRACK_TYPE "ipsm"
46 MP4_MPEGJ_TRACK_TYPE "mjsm"
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49 MP4(3)
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53Cisco Systems Inc. Version 0.9 MP4(3)