[Mp4-tech] help: about the AudioMuxElement() in ISO/ IEC 14496-3:2005

[=?gb2312?B?0ac=?=]

Dear All,
I have a question about the AudioMuxElement() in LATM format in ISO/IEC 14496-3:2005.
Following is the Syntax of AudioMuxElement():
AudioMuxElement(muxConfigPresent)
{
  if (muxConfigPresent)
  {
    useSameStreamMux;
    if (!useSameStreamMux)
       StreamMuxConfig();
  }
  if (audioMuxVersionA == 0)
  {
    for (i = 0; i <= numSubFrames; i++)
    {
       PayloadLengthInfo();
       PayloadMux();
    }
         .
         .
         .
  }
}
If (MuxConfigPresent == 1) the LATM packet start with the StreamMuxConfig(), But when (AudioMuxVersion == 0) the StreamMuxConfig() is not octet-aligned. Does it mean I have to shift all of the following bytes of the AAC frame?
Can anybody give me some suggestion?
Thank you very much,
Best Wishes,
yelite 
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