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/* -*- c++ -*- */
/*
* Copyright 2004 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#warning "ALSA CONFIG H"
#include "config.h"
#endif
#include <gnuradio/logger.h>
#include "alsa_impl.h"
#include <boost/format.hpp>
#include <algorithm>
static snd_pcm_access_t access_types[] = { SND_PCM_ACCESS_MMAP_INTERLEAVED,
SND_PCM_ACCESS_MMAP_NONINTERLEAVED,
SND_PCM_ACCESS_MMAP_COMPLEX,
SND_PCM_ACCESS_RW_INTERLEAVED,
SND_PCM_ACCESS_RW_NONINTERLEAVED };
static snd_pcm_format_t format_types[] = {
// SND_PCM_FORMAT_UNKNOWN,
SND_PCM_FORMAT_S8,
SND_PCM_FORMAT_U8,
SND_PCM_FORMAT_S16_LE,
SND_PCM_FORMAT_S16_BE,
SND_PCM_FORMAT_U16_LE,
SND_PCM_FORMAT_U16_BE,
SND_PCM_FORMAT_S24_LE,
SND_PCM_FORMAT_S24_BE,
SND_PCM_FORMAT_U24_LE,
SND_PCM_FORMAT_U24_BE,
SND_PCM_FORMAT_S32_LE,
SND_PCM_FORMAT_S32_BE,
SND_PCM_FORMAT_U32_LE,
SND_PCM_FORMAT_U32_BE,
SND_PCM_FORMAT_FLOAT_LE,
SND_PCM_FORMAT_FLOAT_BE,
SND_PCM_FORMAT_FLOAT64_LE,
SND_PCM_FORMAT_FLOAT64_BE,
SND_PCM_FORMAT_IEC958_SUBFRAME_LE,
SND_PCM_FORMAT_IEC958_SUBFRAME_BE,
SND_PCM_FORMAT_MU_LAW,
SND_PCM_FORMAT_A_LAW,
SND_PCM_FORMAT_IMA_ADPCM,
SND_PCM_FORMAT_MPEG,
SND_PCM_FORMAT_GSM,
SND_PCM_FORMAT_SPECIAL,
SND_PCM_FORMAT_S24_3LE,
SND_PCM_FORMAT_S24_3BE,
SND_PCM_FORMAT_U24_3LE,
SND_PCM_FORMAT_U24_3BE,
SND_PCM_FORMAT_S20_3LE,
SND_PCM_FORMAT_S20_3BE,
SND_PCM_FORMAT_U20_3LE,
SND_PCM_FORMAT_U20_3BE,
SND_PCM_FORMAT_S18_3LE,
SND_PCM_FORMAT_S18_3BE,
SND_PCM_FORMAT_U18_3LE,
SND_PCM_FORMAT_U18_3BE
};
static unsigned int test_rates[] = { 8000, 16000, 22050, 32000,
44100, 48000, 96000, 192000 };
#define NELEMS(x) (sizeof(x) / sizeof(x[0]))
void gri_alsa_dump_hw_params(snd_pcm_t* pcm, snd_pcm_hw_params_t* hwparams, FILE* fp)
{
fprintf(fp, "PCM name: %s\n", snd_pcm_name(pcm));
fprintf(fp, "Access types:\n");
for (unsigned i = 0; i < NELEMS(access_types); i++) {
snd_pcm_access_t at = access_types[i];
fprintf(fp,
" %-20s %s\n",
snd_pcm_access_name(at),
snd_pcm_hw_params_test_access(pcm, hwparams, at) == 0 ? "YES" : "NO");
}
fprintf(fp, "Formats:\n");
for (unsigned i = 0; i < NELEMS(format_types); i++) {
snd_pcm_format_t ft = format_types[i];
if (0)
fprintf(fp,
" %-20s %s\n",
snd_pcm_format_name(ft),
snd_pcm_hw_params_test_format(pcm, hwparams, ft) == 0 ? "YES" : "NO");
else {
if (snd_pcm_hw_params_test_format(pcm, hwparams, ft) == 0)
fprintf(fp, " %-20s YES\n", snd_pcm_format_name(ft));
}
}
fprintf(fp, "Number of channels\n");
unsigned int min_chan, max_chan;
snd_pcm_hw_params_get_channels_min(hwparams, &min_chan);
snd_pcm_hw_params_get_channels_max(hwparams, &max_chan);
fprintf(fp, " min channels: %d\n", min_chan);
fprintf(fp, " max channels: %d\n", max_chan);
unsigned int chan;
max_chan = std::min(max_chan, 16U); // truncate display...
for (chan = min_chan; chan <= max_chan; chan++) {
fprintf(fp,
" %d channels\t%s\n",
chan,
snd_pcm_hw_params_test_channels(pcm, hwparams, chan) == 0 ? "YES" : "NO");
}
fprintf(fp, "Sample Rates:\n");
unsigned int min_rate, max_rate;
int min_dir, max_dir;
snd_pcm_hw_params_get_rate_min(hwparams, &min_rate, &min_dir);
snd_pcm_hw_params_get_rate_max(hwparams, &max_rate, &max_dir);
fprintf(fp, " min rate: %7d (dir = %d)\n", min_rate, min_dir);
fprintf(fp, " max rate: %7d (dir = %d)\n", max_rate, max_dir);
for (unsigned i = 0; i < NELEMS(test_rates); i++) {
unsigned int rate = test_rates[i];
fprintf(fp,
" %6u %s\n",
rate,
snd_pcm_hw_params_test_rate(pcm, hwparams, rate, 0) == 0 ? "YES" : "NO");
}
fflush(fp);
}
bool gri_alsa_pick_acceptable_format(snd_pcm_t* pcm,
snd_pcm_hw_params_t* hwparams,
snd_pcm_format_t acceptable_formats[],
unsigned nacceptable_formats,
snd_pcm_format_t* selected_format,
const char* error_msg_tag,
bool verbose)
{
int err;
gr::logger_ptr logger, debug_logger;
gr::configure_default_loggers(
logger, debug_logger, "gri_alsa_pick_acceptable_format");
// pick a format that we like...
for (unsigned i = 0; i < nacceptable_formats; i++) {
if (snd_pcm_hw_params_test_format(pcm, hwparams, acceptable_formats[i]) == 0) {
err = snd_pcm_hw_params_set_format(pcm, hwparams, acceptable_formats[i]);
if (err < 0) {
GR_LOG_ERROR(logger,
boost::format("%s[%s]: failed to set format: %s") %
error_msg_tag % snd_pcm_name(pcm) % snd_strerror(err));
return false;
}
GR_LOG_INFO(debug_logger,
boost::format("%s[%s]: using %s") % error_msg_tag %
snd_pcm_name(pcm) %
snd_pcm_format_name(acceptable_formats[i]));
*selected_format = acceptable_formats[i];
return true;
}
}
GR_LOG_ERROR(logger,
boost::format("%s[%s]: failed to find acceptable format") %
error_msg_tag % snd_pcm_name(pcm));
return false;
}
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