From 7ff1f8b9522d132c9248a68cc5df15e841523ea6 Mon Sep 17 00:00:00 2001 From: Wohlstand Date: Mon, 23 Sep 2019 17:55:22 +0300 Subject: MidiPlay: Move Audio Output into separate module --- utils/midiplay/audio.h | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 utils/midiplay/audio.h (limited to 'utils/midiplay/audio.h') diff --git a/utils/midiplay/audio.h b/utils/midiplay/audio.h new file mode 100644 index 0000000..ee770ed --- /dev/null +++ b/utils/midiplay/audio.h @@ -0,0 +1,64 @@ +/* + * ADLMIDI Player is a free MIDI player based on a libADLMIDI, + * a Software MIDI synthesizer library with OPL3 emulation + * + * Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma + * ADLMIDI Library API: Copyright (c) 2015-2019 Vitaly Novichkov + * + * Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation: + * http://iki.fi/bisqwit/source/adlmidi.html + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifdef __cplusplus +extern "C" +{ +#endif + +typedef void (*AudioOutputCallback)(void *, unsigned char *stream, int len); + +struct AudioOutputSpec +{ + unsigned int freq; + unsigned short format; + unsigned short is_msb; + unsigned short samples; + unsigned char channels; +}; + +extern int audio_init(struct AudioOutputSpec *in_spec, struct AudioOutputSpec *out_obtained, AudioOutputCallback callback); + +extern void audio_close(); + +extern const char* audio_get_error(); + +extern void audio_start(); + +extern void audio_stop(); + +extern void audio_lock(); + +extern void audio_unlock(); + +extern void audio_delay(unsigned int ms); + +extern void* audio_mutex_create(); +extern void audio_mutex_destroy(void*m); +extern void audio_mutex_lock(void*m); +extern void audio_mutex_unlock(void*m); + +#ifdef __cplusplus +} +#endif -- cgit v1.2.3