[FFmpeg-user] how to understand a given file AAC file is of SBR profile(AAC+)

[Gaurav G]

Hi,

For my code i need to know at the time of parser init whether a given file is a SBR or HE to make my application initialization proper.

I have gone through the code in libavcodec/aac.c file in the aac_decode_init() and understood that if extradata_size is more than zero then i can know the required information. But my input file does not have the extradata so i am not able to know the aac type.

Please, help me to understand is their a way to know at the time of initialization the AAC type.

Thanks,
gaurav

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