Hi Carl,

Sorry, I'm not on the ffmpeg devel list and I did not see your question
earlier.

The file is produced by an iPhone streaming audio via bluetooth and
using AAC encoding instead of the usual SBC.

For each packed I added the sync header 11 bits 0x2b7 + 13 bits packet
length. 3 bytes total. The LATM demux code in ffmpeg was expecting
this header.

If I remove the 3 byte header I can decode the bitstream using the
Fraunhofer AAC decoder (FDK).

>>How was this file produced / what software allows decoding?
>> https://trac.ffmpeg.org/ticket/4730
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