Data Fields | |
HW16 | state |
HW32 | bufferSize |
HW32 | dataSize |
HW32 | frameCounter |
HW32 | auxDataSize |
HW32 | totalBufferedData |
HW32 | availableFrames |
int | overflow |
int | underflow |
Stream state information, collected together for convenience
Amount of data (in bytes) in hardware (on-card) buffer. This differs from dataSize if bus mastering (BBM) is used, which introduces another driver-level buffer to which dataSize/bufferSize then refers.
Size of immediately available data (for input) or space (for output) in frames. This only checks the first-level buffer (typically host buffer). This amount can be transferred immediately.
Size (in bytes) of recording/playback data buffer in HPI driver
Amount of data (in bytes) available in the buffer
Number of frames played/recorded since last stream reset
Indicates that hardware buffer is getting too full
HPI stream state (HPI_STATE_STOPPED, HPI_STATE_PLAYING, etc.)
Total number of data frames currently buffered by HPI driver (host + hw buffers)
Indicates that hardware buffer is getting too empty