Write correct ADX footer size
Write correct ADX footer size

If an ADX file loops, the entire filesize should be a multiple of 0x800, otherwise, the footer should be 1 ADPCM frame long (Usually 18 bytes)

Thealexbarney/LibDspAdpcm,Thealexbarney/VGAudio,Thealexbarney/VGAudio,Thealexbarney/LibDspAdpcm