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

6       MP4SetAudioProfileLevel  -  Sets  the  minimum MPEG-4 audio profile and
7       level required to render the contents of the file
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SYNTAX

10       #include <mp4.h>
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12       bool MP4SetAudioProfileLevel(
13               MP4FileHandle hFile,
14               u_int8_t profileLevel
15       )
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ARGUMENTS

18       hFile  Specifies the mp4 file to which the operation applies.
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RETURN VALUES

21       Upon success, true (1). Upon an error, false (0).
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DESCRIPTION

24       MP4SetAudioProfileLevel sets the minumum profile/level of MPEG-4  audio
25       support necessary to render the contents of the file.
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27       ISO/IEC 14496-1:2001 MPEG-4 Systems defines the following values:
28            0x00      Reserved
29            0x01      Main Profile @ Level 1
30            0x02      Main Profile @ Level 2
31            0x03      Main Profile @ Level 3
32            0x04      Main Profile @ Level 4
33            0x05      Scalable Profile @ Level 1
34            0x06      Scalable Profile @ Level 2
35            0x07      Scalable Profile @ Level 3
36            0x08      Scalable Profile @ Level 4
37            0x09      Speech Profile @ Level 1
38            0x0A      Speech Profile @ Level 2
39            0x0B      Synthesis Profile @ Level 1
40            0x0C      Synthesis Profile @ Level 2
41            0x0D      Synthesis Profile @ Level 3
42            0x0E-0x7F Reserved
43            0x80-0xFD User private
44            0xFE      No audio profile specified
45            0xFF      No audio required
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SEE ALSO

48       MP4(3) MP4GetAudioProfileLevel(3)
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52Cisco Systems Inc.                Version 0.9                           MP4(3)