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Diffstat (limited to 'include/hotword_dsp_api.h')
-rw-r--r-- | include/hotword_dsp_api.h | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/include/hotword_dsp_api.h b/include/hotword_dsp_api.h deleted file mode 100644 index 369af00ede..0000000000 --- a/include/hotword_dsp_api.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright 2019 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#ifndef SPEECH_MICRO_API_HOTWORD_DSP_API_H_ -#define SPEECH_MICRO_API_HOTWORD_DSP_API_H_ - -/* - * This API creates a global singleton behind the scenes. It's the caller's - * responsibility to store the contents of the hotword_memmap model file into - * aligned memory and pass its pointer to this library. Note that no additional - * memory is allocated and hotword_memmap will contain both the model and the - * scratch buffers. - */ - -/* Specifies the required alignment for the hotword_memmap. */ -extern const int kGoogleHotwordRequiredDataAlignment; - -/* - * Called to set up the Google hotword algorithm. Returns 1 if successful, and 0 - * otherwise. - */ -int GoogleHotwordDspInit(void *hotword_memmap); - -/* - * Call with every frame of samples to process. If a hotword is detected, this - * function returns 1 otherwise 0. The required preamble length will be set to - * the number of milliseconds of buffered audio to be transferred to the AP. - */ -int GoogleHotwordDspProcess(const void *samples, int num_samples, - int *preamble_length_ms); - -/* - * If there's a break in the audio stream (e.g. when Sound Activity Detection is - * enabled), call this before any subsequent calls to GoogleHotwordDspProcess. - */ -void GoogleHotwordDspReset(void); - -/* Returns the maximum possible audio preamble length in miliseconds. */ -int GoogleHotwordDspGetMaximumAudioPreambleMs(void); - -/* Returns an internal version number that this library was built at. */ -extern int GoogleHotwordVersion(void); - -#endif /* SPEECH_MICRO_API_HOTWORD_DSP_API_H_ */ |