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VST 3 Interfaces VST 3.7
SDK for developing VST plug-in
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Audio processing context. More...
#include <ivstprocesscontext.h>
Public Types | |
| enum | StatesAndFlags { kPlaying = 1 << 1 , kCycleActive = 1 << 2 , kRecording = 1 << 3 , kSystemTimeValid = 1 << 8 , kContTimeValid = 1 << 17 , kProjectTimeMusicValid = 1 << 9 , kBarPositionValid = 1 << 11 , kCycleValid = 1 << 12 , kTempoValid = 1 << 10 , kTimeSigValid = 1 << 13 , kChordValid = 1 << 18 , kSmpteValid = 1 << 14 , kClockValid = 1 << 15 } |
| Transport state & other flags. More... | |
Public Attributes | |
| uint32 | state |
| a combination of the values from StatesAndFlags More... | |
| double | sampleRate |
| current sample rate (always valid) More... | |
| TSamples | projectTimeSamples |
| project time in samples (always valid) More... | |
| int64 | systemTime |
| system time in nanoseconds (optional) More... | |
| TSamples | continousTimeSamples |
| project time, without loop (optional) More... | |
| TQuarterNotes | projectTimeMusic |
| musical position in quarter notes (1.0 equals 1 quarter note) (optional) More... | |
| TQuarterNotes | barPositionMusic |
| last bar start position, in quarter notes (optional) More... | |
| TQuarterNotes | cycleStartMusic |
| cycle start in quarter notes (optional) More... | |
| TQuarterNotes | cycleEndMusic |
| cycle end in quarter notes (optional) More... | |
| double | tempo |
| tempo in BPM (Beats Per Minute) (optional) More... | |
| int32 | timeSigNumerator |
| time signature numerator (e.g. 3 for 3/4) (optional) More... | |
| int32 | timeSigDenominator |
| time signature denominator (e.g. 4 for 3/4) (optional) More... | |
| Chord | chord |
| musical info (optional) More... | |
| int32 | smpteOffsetSubframes |
| SMPTE (sync) offset in subframes (1/80 of frame) (optional) More... | |
| FrameRate | frameRate |
| frame rate (optional) More... | |
| int32 | samplesToNextClock |
| MIDI Clock Resolution (24 Per Quarter Note), can be negative (nearest) (optional) More... | |
Audio processing context.
For each processing block the host provides timing information and musical parameters that can change over time. For a host that supports jumps (like cycle) it is possible to split up a processing block into multiple parts in order to provide a correct project time inside of every block, but this behavior is not mandatory. Since the timing will be correct at the beginning of the next block again, a host that is dependent on a fixed processing block size can choose to neglect this problem.
| enum StatesAndFlags |
Transport state & other flags.
| uint32 state |
a combination of the values from StatesAndFlags
| double sampleRate |
current sample rate (always valid)
| TSamples projectTimeSamples |
project time in samples (always valid)
| int64 systemTime |
system time in nanoseconds (optional)
| TSamples continousTimeSamples |
project time, without loop (optional)
| TQuarterNotes projectTimeMusic |
musical position in quarter notes (1.0 equals 1 quarter note) (optional)
| TQuarterNotes barPositionMusic |
last bar start position, in quarter notes (optional)
| TQuarterNotes cycleStartMusic |
cycle start in quarter notes (optional)
| TQuarterNotes cycleEndMusic |
cycle end in quarter notes (optional)
| double tempo |
tempo in BPM (Beats Per Minute) (optional)
| int32 timeSigNumerator |
time signature numerator (e.g. 3 for 3/4) (optional)
| int32 timeSigDenominator |
time signature denominator (e.g. 4 for 3/4) (optional)
| Chord chord |
musical info (optional)
| int32 smpteOffsetSubframes |
SMPTE (sync) offset in subframes (1/80 of frame) (optional)
| FrameRate frameRate |
frame rate (optional)
| int32 samplesToNextClock |
MIDI Clock Resolution (24 Per Quarter Note), can be negative (nearest) (optional)