audio.h
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- /* FluidSynth - A Software Synthesizer
- *
- * Copyright (C) 2003 Peter Hanappe and others.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public License
- * as published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307, USA
- */
- #ifndef _FLUIDSYNTH_AUDIO_H
- #define _FLUIDSYNTH_AUDIO_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**
- * @file audio.h
- * @brief Functions for audio driver output.
- * @defgroup AudioFunctions Functions for audio output
- *
- * Defines functions for creating audio driver output. Use
- * new_fluid_audio_driver() to create a new audio driver for a given synth
- * and configuration settings. The function new_fluid_audio_driver2() can be
- * used if custom audio processing is desired before the audio is sent to the
- * audio driver (although it is not as efficient).
- *
- * @sa @ref CreatingAudioDriver
- */
- /**
- * Callback function type used with new_fluid_audio_driver2() to allow for
- * custom user audio processing before the audio is sent to the driver. This
- * function is responsible for rendering the audio to the buffers.
- * @param data The user data parameter as passed to new_fluid_audio_driver2().
- * @param len Length of the audio in frames.
- * @param nin Count of buffers in 'in'
- * @param in Not used currently
- * @param nout Count of arrays in 'out' (i.e., channel count)
- * @param out Output buffers, one for each channel
- * @return Should return 0 on success, non-zero if an error occured.
- */
- typedef int (*fluid_audio_func_t)(void* data, int len,
- int nin, float** in,
- int nout, float** out);
- FLUIDSYNTH_API fluid_audio_driver_t* new_fluid_audio_driver(fluid_settings_t* settings,
- fluid_synth_t* synth);
- FLUIDSYNTH_API fluid_audio_driver_t* new_fluid_audio_driver2(fluid_settings_t* settings,
- fluid_audio_func_t func,
- void* data);
- FLUIDSYNTH_API void delete_fluid_audio_driver(fluid_audio_driver_t* driver);
- FLUIDSYNTH_API fluid_file_renderer_t *new_fluid_file_renderer(fluid_synth_t* synth);
- FLUIDSYNTH_API int fluid_file_renderer_process_block(fluid_file_renderer_t* dev);
- FLUIDSYNTH_API void delete_fluid_file_renderer(fluid_file_renderer_t* dev);
- #ifdef __cplusplus
- }
- #endif
- #endif /* _FLUIDSYNTH_AUDIO_H */