Bug in mp3dec_api_fp.c

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Bug in mp3dec_api_fp.c

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In function mp3decGetInfo() the calculation for bitrate is wrong

a_info

->m_info_in.bitrate = mp3_bitrate[header->id][3 - header->layer][header->bitRate] * 1000;

I beleive it should be:

a_info->m_info_in.bitrate = mp3_bitrate[header->id][header->layer - 1][header->bitRate] * 1000;

This is broken in both V5 and V6 beta.

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