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/*
* Copyright 2011,2013-2014 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "audio_registry.h"
#include <gnuradio/logger.h>
#include <gnuradio/prefs.h>
#include <stdexcept>
#include <vector>
namespace gr {
namespace audio {
/***********************************************************************
* Create registries
**********************************************************************/
static std::vector<source_entry_t>& get_source_registry(void)
{
static bool src_reg = false;
static std::vector<source_entry_t> s_registry;
if (!src_reg) {
#ifdef ALSA_FOUND
s_registry.push_back(register_source(REG_PRIO_HIGH, "alsa", alsa_source_fcn));
#endif /* ALSA_FOUND */
#ifdef OSS_FOUND
s_registry.push_back(register_source(REG_PRIO_LOW, "oss", oss_source_fcn));
#endif /* OSS_FOUND */
#ifdef PORTAUDIO_FOUND
s_registry.push_back(
register_source(REG_PRIO_MED, "portaudio", portaudio_source_fcn));
#endif /* PORTAUDIO_FOUND */
#ifdef JACK_FOUND
s_registry.push_back(register_source(REG_PRIO_MED, "jack", jack_source_fcn));
#endif /* JACK_FOUND */
#ifdef OSX_FOUND
s_registry.push_back(register_source(REG_PRIO_HIGH, "osx", osx_source_fcn));
#endif /* OSX_FOUND */
#ifdef WIN32_FOUND
s_registry.push_back(
register_source(REG_PRIO_LOW, "windows", windows_source_fcn));
#endif /* WIN32_FOUND */
src_reg = true;
}
return s_registry;
}
static std::vector<sink_entry_t>& get_sink_registry(void)
{
static bool snk_reg = false;
static std::vector<sink_entry_t> s_registry;
if (!snk_reg) {
#if ALSA_FOUND
s_registry.push_back(register_sink(REG_PRIO_HIGH, "alsa", alsa_sink_fcn));
#endif /* ALSA_FOUND */
#if OSS_FOUND
s_registry.push_back(register_sink(REG_PRIO_LOW, "oss", oss_sink_fcn));
#endif /* OSS_FOUND */
#if PORTAUDIO_FOUND
s_registry.push_back(
register_sink(REG_PRIO_MED, "portaudio", portaudio_sink_fcn));
#endif /* PORTAUDIO_FOUND */
#if JACK_FOUND
s_registry.push_back(register_sink(REG_PRIO_MED, "jack", jack_sink_fcn));
#endif /* JACK_FOUND */
#ifdef OSX_FOUND
s_registry.push_back(register_sink(REG_PRIO_HIGH, "osx", osx_sink_fcn));
#endif /* OSX_FOUND */
#ifdef WIN32_FOUND
s_registry.push_back(register_sink(REG_PRIO_HIGH, "windows", windows_sink_fcn));
#endif /* WIN32_FOUND */
snk_reg = true;
}
return s_registry;
}
/***********************************************************************
* Register functions
**********************************************************************/
source_entry_t
register_source(reg_prio_type prio, const std::string& arch, source_factory_t source)
{
source_entry_t entry;
entry.prio = prio;
entry.arch = arch;
entry.source = source;
return entry;
}
sink_entry_t
register_sink(reg_prio_type prio, const std::string& arch, sink_factory_t sink)
{
sink_entry_t entry;
entry.prio = prio;
entry.arch = arch;
entry.sink = sink;
return entry;
}
/***********************************************************************
* Factory functions
**********************************************************************/
static std::string default_arch_name(void)
{
return prefs::singleton()->get_string("audio", "audio_module", "auto");
}
static void do_arch_warning(const std::string& arch)
{
if (arch == "auto")
return; // no warning when arch not specified
gr::logger_ptr logger, debug_logger;
gr::configure_default_loggers(logger, debug_logger, "audio_registry");
std::ostringstream msg;
msg << "Could not find audio architecture \"" << arch << "\" in registry.";
msg << " Defaulting to the first available architecture.";
GR_LOG_ERROR(logger, msg.str());
}
source::sptr
source::make(int sampling_rate, const std::string device_name, bool ok_to_block)
{
gr::logger_ptr logger, debug_logger;
configure_default_loggers(logger, debug_logger, "audio_source");
if (get_source_registry().empty()) {
throw std::runtime_error("no available audio source factories");
}
std::string arch = default_arch_name();
source_entry_t entry = get_source_registry().front();
for (const auto& e : get_source_registry()) {
if (e.prio > entry.prio)
entry = e; // entry is highest prio
if (arch != e.arch)
continue; // continue when no match
return e.source(sampling_rate, device_name, ok_to_block);
}
GR_LOG_INFO(debug_logger, boost::format("Audio source arch: %1%") % (entry.arch));
return entry.source(sampling_rate, device_name, ok_to_block);
}
sink::sptr sink::make(int sampling_rate, const std::string device_name, bool ok_to_block)
{
gr::logger_ptr logger, debug_logger;
configure_default_loggers(logger, debug_logger, "audio source");
if (get_sink_registry().empty()) {
throw std::runtime_error("no available audio sink factories");
}
std::string arch = default_arch_name();
sink_entry_t entry = get_sink_registry().front();
for (const sink_entry_t& e : get_sink_registry()) {
if (e.prio > entry.prio)
entry = e; // entry is highest prio
if (arch != e.arch)
continue; // continue when no match
return e.sink(sampling_rate, device_name, ok_to_block);
}
do_arch_warning(arch);
GR_LOG_INFO(debug_logger, boost::format("Audio sink arch: %1%") % (entry.arch));
return entry.sink(sampling_rate, device_name, ok_to_block);
}
} /* namespace audio */
} /* namespace gr */
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