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[xx] [xxxxxx] | | | | – 00 = audio stream format | | | –[x][xxx][xx] :: changes :: reserved :: format index | | | | | | | | | — 00 = format index #0 | | | | 01 = format index #1 | | | | 10 = format index #2 | | | | 11 = format index #3 | | | | | | | —— 000 = reserved | | | ... | | | 111 = reserved | | | | | ————- 0 = no changes since last sent | | 1 = some changes since last sent | | – 01 = stream data | | | –[xxxxxx] :: high-order 6 bits of packet size | | | | | – 000000..111111 | | | | – 10 = stream sync | | | –[xxxxxx] :: high-order 6 bits of packet sync | | | | | – 000000..111111 | | – 11 = custom packet | –[x][xxxxx] :: reserved :: custom packet sub-code | | | – 00000 = reserved | 00001 = text data | 00010 = video format | 00011 = reserved | ... | 00111 = reserved | 01000 = user-defined | ... | 11111 = user-defined | ————- 0 = reserved 1 = reserved
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