1MP4(3)                      MP4 File Format Library                     MP4(3)
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NAME

6       MP4AddHintTrack - Add a hint track
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SYNTAX

9       #include <mp4.h>
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11       MP4TrackId MP4AddHintTrack(
12            MP4FileHandle hFile,
13            MP4TrackId refTrackId
14       )
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ARGUMENTS

17       hFile  Specifies the mp4 file to which the operation applies.
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19       refTrackId
20              Specifies the reference media track for this hint track.
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RETURN VALUES

23       Upon   success,  the  track  id  of  the  new  track.  Upon  an  error,
24       MP4_INVALID_TRACK_ID.
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DESCRIPTION

28       MP4AddHintTrack adds a hint track to the mp4 file. A hint track is used
29       to  describe  how  to  send the reference media track over a particular
30       network transport. In the case of the IETF RTP protocol, the hint track
31       describes  how  the  media  data  should be placed into packets and any
32       media specific protocol headers that should be added.
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34       Typically there is a one to one correspondence between reference  media
35       track  samples  and  hint  track samples. The start time, duration, and
36       sync flags are typically the same,  however  provisions  are  made  for
37       deviations from this rule.
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39       The  MP4  library  provides extensive support for RTP hint tracks. This
40       includes a easy to use API to create RTP  hint  tracks,  and  read  out
41       fully constructed RTP packets based on the hint track.
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SEE ALSO

45       MP4(3)
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49Cisco Systems Inc.                Version 0.9                           MP4(3)