DSP AAC Decoder: Difference between revisions
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=Request/Response Data= | =Request/Response Data= | ||
The 24-byte "request/response data" chunk can take on one of the formats listed below, depending on what sort of message it's found in. | The 24-byte "request/response data" chunk can take on one of the formats listed below, depending on what sort of message it's found in. | ||
'''AAC Decode request''' | |||
Size : 24 bytes | |||
{| class="wikitable" border="1" | |||
|- | |||
! Offset in bytes | |||
! Type | |||
! Description | |||
|- | |||
| 0x0 | |||
| u32 | |||
| Physical address of input AAC stream | |||
|- | |||
| 0x4 | |||
| u32 | |||
| Byte size of input AAC stream | |||
|- | |||
| 0x8 | |||
| u32 | |||
| Physical address to output decoded PCM16 samples to (In the case of stereo audio, this corresponds to the left channel) | |||
|- | |||
| 0xC | |||
| u32 | |||
| Physical address to output decoded PCM16 samples for the right channel | |||
|- | |||
| 0x10 | |||
| u32 | |||
| Unknown? | |||
|- | |||
| 0x14 | |||
| u32 | |||
| Unknown? | |||
|- | |||
|} | |||
'''AAC Decode command response''' | '''AAC Decode command response''' | ||