diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-02-11 23:12:08 -0500 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-02-11 23:12:08 -0500 |
| commit | a64df4e322933006f954c72bccbe53f6ce1a2381 (patch) | |
| tree | 9025e923229a28c6c923de477ef13753f3bad13b /gr-audio/lib/alsa/audio_alsa_source.h | |
| parent | 0c8763a943dde47b4bbebf526c442509a9cf8bd4 (diff) | |
analog: wip: name changes for alsa, oss, jack files.
Diffstat (limited to 'gr-audio/lib/alsa/audio_alsa_source.h')
| -rw-r--r-- | gr-audio/lib/alsa/audio_alsa_source.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/gr-audio/lib/alsa/audio_alsa_source.h b/gr-audio/lib/alsa/audio_alsa_source.h deleted file mode 100644 index 6314fc1376..0000000000 --- a/gr-audio/lib/alsa/audio_alsa_source.h +++ /dev/null @@ -1,114 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004-2011,2013 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio 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, or (at your option) - * any later version. - * - * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#ifndef INCLUDED_AUDIO_ALSA_SOURCE_H -#define INCLUDED_AUDIO_ALSA_SOURCE_H - -// use new ALSA API -#define ALSA_PCM_NEW_HW_PARAMS_API -#define ALSA_PCM_NEW_SW_PARAMS_API - -#include <audio/source.h> -#include <alsa/asoundlib.h> -#include <string> -#include <stdexcept> - -namespace gr { - namespace audio { - - class alsa_source; - typedef boost::shared_ptr<alsa_source> alsa_source_sptr; - - /*! - * \brief audio source using ALSA - * \ingroup audio_blk - * - * The source has between 1 and N input streams of floats, where N is - * depends on the hardware characteristics of the selected device. - * - * Output samples will be in the range [-1,1]. - */ - class alsa_source : public source - { - // typedef for pointer to class work method - typedef int(alsa_source::*work_t)(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - unsigned int d_sampling_rate; - std::string d_device_name; - snd_pcm_t *d_pcm_handle; - snd_pcm_hw_params_t *d_hw_params; - snd_pcm_sw_params_t *d_sw_params; - snd_pcm_format_t d_format; - unsigned int d_nperiods; - unsigned int d_period_time_us; // microseconds - snd_pcm_uframes_t d_period_size; // in frames - unsigned int d_buffer_size_bytes; // sizeof of d_buffer - char *d_buffer; - work_t d_worker; // the work method to use - unsigned int d_hw_nchan; // # of configured h/w channels - bool d_special_case_stereo_to_mono; - - // random stats - int d_noverruns; // count of overruns - int d_nsuspends; // count of suspends - - void output_error_msg(const char *msg, int err); - void bail(const char *msg, int err) throw (std::runtime_error); - - public: - alsa_source(int sampling_rate, - const std::string device_name, - bool ok_to_block); - ~alsa_source(); - - bool check_topology(int ninputs, int noutputs); - - int work(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - protected: - bool read_buffer(void *buffer, unsigned nframes, unsigned sizeof_frame); - - int work_s16(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - int work_s16_2x1(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - int work_s32(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - int work_s32_2x1(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - }; - - } /* namespace audio */ -} /* namespace gr */ - -#endif /* INCLUDED_AUDIO_ALSA_SOURCE_H */ |