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flightgear/3rdparty/hts_engine_API/lib/HTS_audio.c
James Turner 7b2d710cd0 Add hts_engine 1.08 and flite_hts 1.05 code. 
- Not compiled by default, nor hooked up to anything yet.
- Both libraries licensed under modified BSD license.
- Added top-level CMake file for both, to create a plain static
  library for each.
2014-03-10 09:32:43 +00:00

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/* ----------------------------------------------------------------- */
/* The HMM-Based Speech Synthesis Engine "hts_engine API" */
/* developed by HTS Working Group */
/* http://hts-engine.sourceforge.net/ */
/* ----------------------------------------------------------------- */
/* */
/* Copyright (c) 2001-2013 Nagoya Institute of Technology */
/* Department of Computer Science */
/* */
/* 2001-2008 Tokyo Institute of Technology */
/* Interdisciplinary Graduate School of */
/* Science and Engineering */
/* */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* - Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* - Redistributions in binary form must reproduce the above */
/* copyright notice, this list of conditions and the following */
/* disclaimer in the documentation and/or other materials provided */
/* with the distribution. */
/* - Neither the name of the HTS working group nor the names of its */
/* contributors may be used to endorse or promote products derived */
/* from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND */
/* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, */
/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS */
/* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, */
/* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */
/* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, */
/* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY */
/* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
/* POSSIBILITY OF SUCH DAMAGE. */
/* ----------------------------------------------------------------- */
#ifndef HTS_AUDIO_C
#define HTS_AUDIO_C
#ifdef __cplusplus
#define HTS_AUDIO_C_START extern "C" {
#define HTS_AUDIO_C_END }
#else
#define HTS_AUDIO_C_START
#define HTS_AUDIO_C_END
#endif /* __CPLUSPLUS */
HTS_AUDIO_C_START;
#if !defined(AUDIO_PLAY_WIN32) && !defined(AUDIO_PLAY_PORTAUDIO) && !defined(AUDIO_PLAY_NONE)
#if defined(__WINCE__) || defined(_WINCE) || defined(_WINCE) || defined(__WINCE) || defined(__WIN32__) || defined(__WIN32) || defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__)
#define AUDIO_PLAY_WIN32
#else
#define AUDIO_PLAY_NONE
#endif /* __WINCE__ || _WINCE || _WINCE || __WINCE || __WIN32__ || __WIN32 || _WIN32 || WIN32 || __CYGWIN__ || __MINGW32__ */
#endif /* !AUDIO_PLAY_WIN32 && !AUDIO_PLAY_PORTAUDIO && !AUDIO_PLAY_NONE */
/* hts_engine libralies */
#include "HTS_hidden.h"
#ifdef AUDIO_PLAY_WIN32
#include <windows.h>
#include <mmsystem.h>
#define AUDIO_WAIT_BUFF_MS 10 /* wait time (0.01 sec) */
#define AUDIO_CHANNEL 1 /* monoral */
/* HTS_Audio: audio interface for Windows */
typedef struct _HTS_AudioInterface {
HWAVEOUT hwaveout; /* audio device handle */
WAVEFORMATEX waveformatex; /* wave formatex */
unsigned char which_buff; /* double buffering flag */
HTS_Boolean now_buff_1; /* double buffering flag */
HTS_Boolean now_buff_2; /* double buffering flag */
WAVEHDR buff_1; /* buffer */
WAVEHDR buff_2; /* buffer */
} HTS_AudioInterface;
/* HTS_AudioInterface_callback_function: callback function from audio device */
static void CALLBACK HTS_AudioInterface_callback_function(HWAVEOUT hwaveout, UINT msg, DWORD user_data, DWORD param1, DWORD param2)
{
WAVEHDR *wavehdr = (WAVEHDR *) param1;
HTS_AudioInterface *audio_interface = (HTS_AudioInterface *) user_data;
if (msg == MM_WOM_DONE && wavehdr && (wavehdr->dwFlags & WHDR_DONE)) {
if (audio_interface->now_buff_1 == TRUE && wavehdr == &(audio_interface->buff_1)) {
audio_interface->now_buff_1 = FALSE;
} else if (audio_interface->now_buff_2 == TRUE && wavehdr == &(audio_interface->buff_2)) {
audio_interface->now_buff_2 = FALSE;
}
}
}
/* HTS_AudioInterface_write: send buffer to audio device */
static HTS_Boolean HTS_AudioInterface_write(HTS_AudioInterface * audio_interface, const short *buff, size_t buff_size)
{
MMRESULT result;
if (audio_interface->which_buff == 1) {
while (audio_interface->now_buff_1 == TRUE)
Sleep(AUDIO_WAIT_BUFF_MS);
audio_interface->now_buff_1 = TRUE;
audio_interface->which_buff = 2;
memcpy(audio_interface->buff_1.lpData, buff, buff_size * sizeof(short));
audio_interface->buff_1.dwBufferLength = buff_size * sizeof(short);
result = waveOutWrite(audio_interface->hwaveout, &(audio_interface->buff_1), sizeof(WAVEHDR));
} else {
while (audio_interface->now_buff_2 == TRUE)
Sleep(AUDIO_WAIT_BUFF_MS);
audio_interface->now_buff_2 = TRUE;
audio_interface->which_buff = 1;
memcpy(audio_interface->buff_2.lpData, buff, buff_size * sizeof(short));
audio_interface->buff_2.dwBufferLength = buff_size * sizeof(short);
result = waveOutWrite(audio_interface->hwaveout, &(audio_interface->buff_2), sizeof(WAVEHDR));
}
if (result != MMSYSERR_NOERROR)
HTS_error(0, "hts_engine: Cannot send datablocks to your output audio device to play waveform.\n");
return (result == MMSYSERR_NOERROR) ? TRUE : FALSE;
}
/* HTS_AudioInterface_close: close audio device */
static void HTS_AudioInterface_close(HTS_AudioInterface * audio_interface)
{
MMRESULT result;
/* stop audio */
result = waveOutReset(audio_interface->hwaveout);
if (result != MMSYSERR_NOERROR)
HTS_error(0, "hts_engine: Cannot stop and reset your output audio device.\n");
/* unprepare */
result = waveOutUnprepareHeader(audio_interface->hwaveout, &(audio_interface->buff_1), sizeof(WAVEHDR));
if (result != MMSYSERR_NOERROR)
HTS_error(0, "hts_engine: Cannot cleanup the audio datablocks to play waveform.\n");
result = waveOutUnprepareHeader(audio_interface->hwaveout, &(audio_interface->buff_2), sizeof(WAVEHDR));
if (result != MMSYSERR_NOERROR)
HTS_error(0, "hts_engine: Cannot cleanup the audio datablocks to play waveform.\n");
/* close */
result = waveOutClose(audio_interface->hwaveout);
if (result != MMSYSERR_NOERROR)
HTS_error(0, "hts_engine: Failed to close your output audio device.\n");
if (audio_interface->buff_1.lpData != NULL)
HTS_free(audio_interface->buff_1.lpData);
if (audio_interface->buff_2.lpData != NULL)
HTS_free(audio_interface->buff_2.lpData);
HTS_free(audio_interface);
}
static HTS_AudioInterface *HTS_AudioInterface_open(size_t sampling_frequency, size_t max_buff_size)
{
HTS_AudioInterface *audio_interface;
MMRESULT result;
/* make audio interface */
audio_interface = (HTS_AudioInterface *) HTS_calloc(1, sizeof(HTS_AudioInterface));
audio_interface->hwaveout = 0;
audio_interface->which_buff = 1;
audio_interface->now_buff_1 = FALSE;
audio_interface->now_buff_2 = FALSE;
/* format */
audio_interface->waveformatex.wFormatTag = WAVE_FORMAT_PCM;
audio_interface->waveformatex.nChannels = AUDIO_CHANNEL;
audio_interface->waveformatex.nSamplesPerSec = sampling_frequency;
audio_interface->waveformatex.wBitsPerSample = sizeof(short) * 8;
audio_interface->waveformatex.nBlockAlign = AUDIO_CHANNEL * audio_interface->waveformatex.wBitsPerSample / 8;
audio_interface->waveformatex.nAvgBytesPerSec = sampling_frequency * audio_interface->waveformatex.nBlockAlign;
/* open */
result = waveOutOpen(&audio_interface->hwaveout, WAVE_MAPPER, &audio_interface->waveformatex, (DWORD) HTS_AudioInterface_callback_function, (DWORD) audio_interface, CALLBACK_FUNCTION);
if (result != MMSYSERR_NOERROR) {
HTS_error(0, "hts_engine: Failed to open your output audio_interface device to play waveform.\n");
HTS_free(audio_interface);
return NULL;
}
/* prepare */
audio_interface->buff_1.lpData = (LPSTR) HTS_calloc(max_buff_size, sizeof(short));
audio_interface->buff_1.dwBufferLength = max_buff_size * sizeof(short);
audio_interface->buff_1.dwFlags = WHDR_BEGINLOOP | WHDR_ENDLOOP;
audio_interface->buff_1.dwLoops = 1;
audio_interface->buff_1.lpNext = 0;
audio_interface->buff_1.reserved = 0;
result = waveOutPrepareHeader(audio_interface->hwaveout, &(audio_interface->buff_1), sizeof(WAVEHDR));
if (result != MMSYSERR_NOERROR) {
HTS_error(0, "hts_engine: Cannot initialize audio_interface datablocks to play waveform.\n");
HTS_free(audio_interface->buff_1.lpData);
HTS_free(audio_interface);
return NULL;
}
audio_interface->buff_2.lpData = (LPSTR) HTS_calloc(max_buff_size, sizeof(short));
audio_interface->buff_2.dwBufferLength = max_buff_size * sizeof(short);
audio_interface->buff_2.dwFlags = WHDR_BEGINLOOP | WHDR_ENDLOOP;
audio_interface->buff_2.dwLoops = 1;
audio_interface->buff_2.lpNext = 0;
audio_interface->buff_2.reserved = 0;
result = waveOutPrepareHeader(audio_interface->hwaveout, &(audio_interface->buff_2), sizeof(WAVEHDR));
if (result != MMSYSERR_NOERROR) {
HTS_error(0, "hts_engine: Cannot initialize audio_interface datablocks to play waveform.\n");
HTS_free(audio_interface->buff_1.lpData);
HTS_free(audio_interface->buff_2.lpData);
HTS_free(audio_interface);
return NULL;
}
return audio_interface;
}
/* HTS_Audio_initialize: initialize audio */
void HTS_Audio_initialize(HTS_Audio * audio)
{
if (audio == NULL)
return;
audio->sampling_frequency = 0;
audio->max_buff_size = 0;
audio->buff = NULL;
audio->buff_size = 0;
audio->audio_interface = NULL;
}
/* HTS_Audio_set_parameter: set parameters for audio */
void HTS_Audio_set_parameter(HTS_Audio * audio, size_t sampling_frequency, size_t max_buff_size)
{
if (audio == NULL)
return;
if (audio->sampling_frequency == sampling_frequency && audio->max_buff_size == max_buff_size)
return;
HTS_Audio_clear(audio);
if (sampling_frequency == 0 || max_buff_size == 0)
return;
audio->audio_interface = HTS_AudioInterface_open(sampling_frequency, max_buff_size);
if (audio->audio_interface == NULL)
return;
audio->sampling_frequency = sampling_frequency;
audio->max_buff_size = max_buff_size;
audio->buff = (short *) HTS_calloc(max_buff_size, sizeof(short));
audio->buff_size = 0;
}
/* HTS_Audio_write: send data to audio */
void HTS_Audio_write(HTS_Audio * audio, short data)
{
if (audio == NULL || audio->audio_interface == NULL)
return;
audio->buff[audio->buff_size++] = data;
if (audio->buff_size >= audio->max_buff_size) {
if (HTS_AudioInterface_write((HTS_AudioInterface *) audio->audio_interface, audio->buff, audio->buff_size) != TRUE) {
HTS_Audio_clear(audio);
return;
}
audio->buff_size = 0;
}
}
/* HTS_Audio_flush: flush remain data */
void HTS_Audio_flush(HTS_Audio * audio)
{
HTS_AudioInterface *audio_interface;
if (audio == NULL || audio->audio_interface == NULL)
return;
audio_interface = (HTS_AudioInterface *) audio->audio_interface;
if (audio->buff_size > 0) {
if (HTS_AudioInterface_write(audio_interface, audio->buff, audio->buff_size) != TRUE) {
HTS_Audio_clear(audio);
return;
}
audio->buff_size = 0;
}
while (audio_interface->now_buff_1 == TRUE || audio_interface->now_buff_2 == TRUE)
Sleep(AUDIO_WAIT_BUFF_MS);
}
/* HTS_Audio_clear: free audio */
void HTS_Audio_clear(HTS_Audio * audio)
{
HTS_AudioInterface *audio_interface;
if (audio == NULL || audio->audio_interface == NULL)
return;
audio_interface = (HTS_AudioInterface *) audio->audio_interface;
HTS_AudioInterface_close(audio_interface);
if (audio->buff != NULL)
free(audio->buff);
HTS_Audio_initialize(audio);
}
#endif /* AUDIO_PLAY_WIN32 */
#ifdef AUDIO_PLAY_PORTAUDIO
#include "portaudio.h"
/* HTS_AudioInterface: audio output for PortAudio */
typedef struct _HTS_AudioInterface {
PaStreamParameters parameters; /* parameters for output stream */
PaStream *stream; /* output stream */
} HTS_AudioInterface;
/* HTS_AudioInterface_write: send data to audio device */
static void HTS_AudioInterface_write(HTS_AudioInterface * audio_interface, const short *buff, size_t buff_size)
{
PaError err;
err = Pa_WriteStream(audio_interface->stream, buff, buff_size);
if (err != paNoError && err != paOutputUnderflowed)
HTS_error(0, "hts_engine: Cannot send datablocks to your output audio device to play waveform.\n");
}
/* HTS_AudioInterface_close: close audio device */
static void HTS_AudioInterface_close(HTS_AudioInterface * audio_interface)
{
PaError err;
err = Pa_StopStream(audio_interface->stream);
if (err != paNoError)
HTS_error(0, "hts_engine: Cannot stop your output audio device.\n");
err = Pa_CloseStream(audio_interface->stream);
if (err != paNoError)
HTS_error(0, "hts_engine: Failed to close your output audio device.\n");
Pa_Terminate();
HTS_free(audio_interface);
}
static HTS_AudioInterface *HTS_AudioInterface_open(size_t sampling_frequency, size_t max_buff_size)
{
HTS_AudioInterface *audio_interface;
PaError err;
audio_interface = HTS_calloc(1, sizeof(HTS_AudioInterface));
audio_interface->stream = NULL;
err = Pa_Initialize();
if (err != paNoError) {
HTS_error(0, "hts_engine: Failed to initialize your output audio device to play waveform.\n");
HTS_free(audio_interface);
return NULL;
}
audio_interface->parameters.device = Pa_GetDefaultOutputDevice();
audio_interface->parameters.channelCount = 1;
audio_interface->parameters.sampleFormat = paInt16;
audio_interface->parameters.suggestedLatency = Pa_GetDeviceInfo(audio_interface->parameters.device)->defaultLowOutputLatency;
audio_interface->parameters.hostApiSpecificStreamInfo = NULL;
err = Pa_OpenStream(&audio_interface->stream, NULL, &audio_interface->parameters, sampling_frequency, max_buff_size, paClipOff, NULL, NULL);
if (err != paNoError) {
HTS_error(0, "hts_engine: Failed to open your output audio device to play waveform.\n");
Pa_Terminate();
HTS_free(audio_interface);
return NULL;
}
err = Pa_StartStream(audio_interface->stream);
if (err != paNoError) {
HTS_error(0, "hts_engine: Failed to start your output audio device to play waveform.\n");
Pa_CloseStream(audio_interface->stream);
Pa_Terminate();
HTS_free(audio_interface);
return NULL;
}
return audio_interface;
}
/* HTS_Audio_initialize: initialize audio */
void HTS_Audio_initialize(HTS_Audio * audio)
{
if (audio == NULL)
return;
audio->sampling_frequency = 0;
audio->max_buff_size = 0;
audio->buff = NULL;
audio->buff_size = 0;
audio->audio_interface = NULL;
}
/* HTS_Audio_set_parameter: set parameters for audio */
void HTS_Audio_set_parameter(HTS_Audio * audio, size_t sampling_frequency, size_t max_buff_size)
{
if (audio == NULL)
return;
if (audio->sampling_frequency == sampling_frequency && audio->max_buff_size == max_buff_size)
return;
HTS_Audio_clear(audio);
if (sampling_frequency == 0 || max_buff_size == 0)
return;
audio->audio_interface = HTS_AudioInterface_open(sampling_frequency, max_buff_size);
if (audio->audio_interface == NULL)
return;
audio->sampling_frequency = sampling_frequency;
audio->max_buff_size = max_buff_size;
audio->buff = (short *) HTS_calloc(max_buff_size, sizeof(short));
audio->buff_size = 0;
}
/* HTS_Audio_write: send data to audio device */
void HTS_Audio_write(HTS_Audio * audio, short data)
{
if (audio == NULL)
return;
audio->buff[audio->buff_size++] = data;
if (audio->buff_size >= audio->max_buff_size) {
if (audio->audio_interface != NULL)
HTS_AudioInterface_write((HTS_AudioInterface *) audio->audio_interface, audio->buff, audio->max_buff_size);
audio->buff_size = 0;
}
}
/* HTS_Audio_flush: flush remain data */
void HTS_Audio_flush(HTS_Audio * audio)
{
HTS_AudioInterface *audio_interface;
if (audio == NULL || audio->audio_interface == NULL)
return;
audio_interface = (HTS_AudioInterface *) audio->audio_interface;
if (audio->buff_size > 0) {
HTS_AudioInterface_write(audio_interface, audio->buff, audio->buff_size);
audio->buff_size = 0;
}
}
/* HTS_Audio_clear: free audio */
void HTS_Audio_clear(HTS_Audio * audio)
{
HTS_AudioInterface *audio_interface;
if (audio == NULL || audio->audio_interface == NULL)
return;
audio_interface = (HTS_AudioInterface *) audio->audio_interface;
HTS_Audio_flush(audio);
HTS_AudioInterface_close(audio_interface);
if (audio->buff != NULL)
HTS_free(audio->buff);
HTS_Audio_initialize(audio);
}
#endif /* AUDIO_PLAY_PORTAUDIO */
#ifdef AUDIO_PLAY_NONE
/* HTS_Audio_initialize: initialize audio */
void HTS_Audio_initialize(HTS_Audio * audio)
{
}
/* HTS_Audio_set_parameter: set parameters for audio */
void HTS_Audio_set_parameter(HTS_Audio * audio, size_t sampling_frequeny, size_t max_buff_size)
{
}
/* HTS_Audio_write: send data to audio */
void HTS_Audio_write(HTS_Audio * audio, short data)
{
}
/* HTS_Audio_flush: flush remain data */
void HTS_Audio_flush(HTS_Audio * audio)
{
}
/* HTS_Audio_clear: free audio */
void HTS_Audio_clear(HTS_Audio * audio)
{
}
#endif /* AUDIO_PLAY_NONE */
HTS_AUDIO_C_END;
#endif /* !HTS_AUDIO_C */
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