From 54b754ce040d5549d5c58428d2b9c095601e98dc Mon Sep 17 00:00:00 2001 From: Javier Date: Sat, 29 Jan 2022 17:01:28 +0100 Subject: initial import --- pcmalsa.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 pcmalsa.h (limited to 'pcmalsa.h') diff --git a/pcmalsa.h b/pcmalsa.h new file mode 100644 index 0000000..d9837c5 --- /dev/null +++ b/pcmalsa.h @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2022 Javier S. Pedro + * + * 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 2 + * of the License, or (at your option) 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef VMUSIC_PCMALSA_H +#define VMUSIC_PCMALSA_H + +#include +#include + +typedef struct _snd_pcm snd_pcm_t; + +class PCMOutAlsa +{ +public: + PCMOutAlsa(); + ~PCMOutAlsa(); + + int open(const char *dev, unsigned int sampleRate, unsigned int channels); + int close(); + + ssize_t avail(); + int wait(); + + ssize_t write(int16_t *buf, size_t n); + +private: + int setParams(unsigned int sampleRate, unsigned int channels, unsigned int bufferTime, unsigned int periodTime); + +private: + snd_pcm_t * _pcm; + size_t _bufferSize; + size_t _periodSize; +}; + +#endif -- cgit v1.2.3