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Add live shifter to C API

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This commit is contained in:
Chris Cannam
2024-10-02 11:29:01 +01:00
parent a28c9e4909
commit 4353ddd78d
3 changed files with 133 additions and 9 deletions
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2
rubberband/RubberBandLiveShifter.h
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@@ -102,7 +102,7 @@ public:
OptionFormantPreserved = 0x01000000,
OptionChannelsApart = 0x00000000,
OptionChannelsTogether = 0x10000000,
OptionChannelsTogether = 0x10000000
// n.b. Options is int, so we must stop before 0x80000000
};

64
rubberband/rubberband-c.h
View File

@@ -48,11 +48,13 @@ extern "C" {
* This is a C-linkage interface to the Rubber Band time stretcher.
*
* This is a wrapper interface: the primary interface is in C++ and is
* defined and documented in RubberBandStretcher.h. The library
* itself is implemented in C++, and requires C++ standard library
* support even when using the C-linkage API.
* defined and documented in RubberBandStretcher.h and
* RubberBandLiveShifter.h. The library itself is implemented in C++,
* and requires C++ standard library support even when using the
* C-linkage API.
*
* Please see RubberBandStretcher.h for documentation.
* Please see RubberBandStretcher.h and RubberBandLiveShifter.h for
* documentation.
*
* If you are writing to the C++ API, do not include this header.
*/
@@ -107,10 +109,10 @@ struct RubberBandState_;
typedef struct RubberBandState_ *RubberBandState;
RB_EXTERN RubberBandState rubberband_new(unsigned int sampleRate,
unsigned int channels,
RubberBandOptions options,
double initialTimeRatio,
double initialPitchScale);
unsigned int channels,
RubberBandOptions options,
double initialTimeRatio,
double initialPitchScale);
RB_EXTERN void rubberband_delete(RubberBandState);
@@ -159,6 +161,52 @@ RB_EXTERN void rubberband_calculate_stretch(RubberBandState);
RB_EXTERN void rubberband_set_debug_level(RubberBandState, int level);
RB_EXTERN void rubberband_set_default_debug_level(int level);
enum RubberBandLiveOption {
RubberBandLiveOptionWindowShort = 0x00000000,
RubberBandLiveOptionWindowMedium = 0x00100000,
RubberBandLiveOptionFormantShifted = 0x00000000,
RubberBandLiveOptionFormantPreserved = 0x01000000,
RubberBandLiveOptionChannelsApart = 0x00000000,
RubberBandLiveOptionChannelsTogether = 0x10000000
};
typedef int RubberBandLiveOptions;
struct RubberBandLiveState_;
typedef struct RubberBandLiveState_ *RubberBandLiveState;
RB_EXTERN RubberBandLiveState rubberband_live_new(unsigned int sampleRate,
unsigned int channels,
RubberBandOptions options);
RB_EXTERN void rubberband_live_delete(RubberBandLiveState);
RB_EXTERN void rubberband_live_reset(RubberBandLiveState);
RB_EXTERN void rubberband_live_set_pitch_scale(RubberBandLiveState, double scale);
RB_EXTERN double rubberband_live_get_pitch_scale(const RubberBandLiveState);
RB_EXTERN void rubberband_live_set_formant_scale(RubberBandLiveState, double scale);
RB_EXTERN double rubberband_live_get_formant_scale(const RubberBandLiveState);
RB_EXTERN unsigned int rubberband_live_get_start_delay(const RubberBandLiveState);
RB_EXTERN void rubberband_live_set_formant_option(RubberBandLiveState, RubberBandOptions options);
RB_EXTERN unsigned int rubberband_live_get_block_size(RubberBandLiveState, RubberBandOptions options);
RB_EXTERN void rubberband_live_shift(RubberBandLiveState, const float *const *input, float *const *output);
RB_EXTERN unsigned int rubberband_live_get_channel_count(const RubberBandLiveState);
RB_EXTERN void rubberband_live_set_debug_level(RubberBandLiveState, int level);
RB_EXTERN void rubberband_live_set_default_debug_level(int level);
#ifdef __cplusplus
}
#endif