direwolf/audio_stats.c

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Development snapshot 1.3 dev F. Changes to be committed: modified: .gitattributes modified: CHANGES.md modified: Makefile modified: Makefile.linux new file: Makefile.macosx modified: Makefile.win modified: aclients.c modified: aprs_tt.c modified: aprs_tt.h modified: atest.c modified: audio.c modified: audio.h new file: audio_portaudio.c new file: audio_stats.c new file: audio_stats.h modified: audio_win.c modified: ax25_pad.c modified: ax25_pad.h modified: beacon.c modified: config.c modified: config.h modified: decode_aprs.c modified: decode_aprs.h modified: demod.c modified: digipeater.c modified: direwolf.c modified: direwolf.h modified: dlq.c modified: doc/README.md modified: doc/Raspberry-Pi-APRS.pdf modified: doc/User-Guide.pdf new file: doc/WA8LMF-TNC-Test-CD-Results.pdf modified: dtime_now.c modified: dtmf.c modified: dw-start.sh modified: encode_aprs.c modified: encode_aprs.h modified: gen_packets.c modified: gen_tone.c modified: gen_tone.h new file: generic.conf modified: grm_sym.h modified: hdlc_rec.c modified: hdlc_rec.h modified: igate.c modified: kiss.c modified: kiss_frame.c modified: kissnet.c modified: latlong.c modified: man1/direwolf.1 modified: mgn_icon.h modified: misc/README-dire-wolf.txt new file: misc/strlcat.c new file: misc/strlcpy.c modified: morse.c new file: morse.h modified: nmea.c modified: pfilter.c modified: ptt.c new file: serial_port.c new file: serial_port.h modified: server.c modified: symbols.c modified: symbols.h new file: telemetry-toolkit/telem-balloon.conf new file: telemetry-toolkit/telem-balloon.pl new file: telemetry-toolkit/telem-bits.pl new file: telemetry-toolkit/telem-data.pl new file: telemetry-toolkit/telem-data91.pl new file: telemetry-toolkit/telem-eqns.pl new file: telemetry-toolkit/telem-m0xer-3.txt new file: telemetry-toolkit/telem-parm.pl new file: telemetry-toolkit/telem-unit.pl new file: telemetry-toolkit/telem-volts.conf new file: telemetry-toolkit/telem-volts.py modified: telemetry.c modified: textcolor.c modified: tq.c modified: tt_text.c modified: tt_text.h modified: tt_user.c modified: tt_user.h modified: utm2ll.c modified: version.h new file: walk96.c modified: xmit.c
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//
// This file is part of Dire Wolf, an amateur radio packet TNC.
//
// Copyright (C) 2015 John Langner, WB2OSZ
//
// 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, see <http://www.gnu.org/licenses/>.
//
/*------------------------------------------------------------------
*
* Module: audio_stats.c
*
* Purpose: Print statistics for audio input stream.
*
* A common complaint is that there is no indication of
* audio input level until a packet is received correctly.
* That's true for the Windows version but the Linux version
* prints something like this each 100 seconds:
*
* ADEVICE0: Sample rate approx. 44.1 k, 0 errors, receive audio level CH0 73
*
* Some complain about the clutter but it has been a useful
* troubleshooting tool. In the earlier RPi days, the sample
* rate was quite low due to a device driver issue.
* Using a USB hub on the RPi also caused audio problems.
* One adapter, that I tried, produces samples at the
* right rate but all the samples are 0.
*
* Here we pull the code out of the Linux version of audio.c
* so we have a common function for all the platforms.
*
* We also add a command line option to adjust the time
* between reports or turn them off entirely.
*
* Revisions: This is new in version 1.3.
*
*---------------------------------------------------------------*/
#include "direwolf.h"
Development snapshot 1.3 dev F. Changes to be committed: modified: .gitattributes modified: CHANGES.md modified: Makefile modified: Makefile.linux new file: Makefile.macosx modified: Makefile.win modified: aclients.c modified: aprs_tt.c modified: aprs_tt.h modified: atest.c modified: audio.c modified: audio.h new file: audio_portaudio.c new file: audio_stats.c new file: audio_stats.h modified: audio_win.c modified: ax25_pad.c modified: ax25_pad.h modified: beacon.c modified: config.c modified: config.h modified: decode_aprs.c modified: decode_aprs.h modified: demod.c modified: digipeater.c modified: direwolf.c modified: direwolf.h modified: dlq.c modified: doc/README.md modified: doc/Raspberry-Pi-APRS.pdf modified: doc/User-Guide.pdf new file: doc/WA8LMF-TNC-Test-CD-Results.pdf modified: dtime_now.c modified: dtmf.c modified: dw-start.sh modified: encode_aprs.c modified: encode_aprs.h modified: gen_packets.c modified: gen_tone.c modified: gen_tone.h new file: generic.conf modified: grm_sym.h modified: hdlc_rec.c modified: hdlc_rec.h modified: igate.c modified: kiss.c modified: kiss_frame.c modified: kissnet.c modified: latlong.c modified: man1/direwolf.1 modified: mgn_icon.h modified: misc/README-dire-wolf.txt new file: misc/strlcat.c new file: misc/strlcpy.c modified: morse.c new file: morse.h modified: nmea.c modified: pfilter.c modified: ptt.c new file: serial_port.c new file: serial_port.h modified: server.c modified: symbols.c modified: symbols.h new file: telemetry-toolkit/telem-balloon.conf new file: telemetry-toolkit/telem-balloon.pl new file: telemetry-toolkit/telem-bits.pl new file: telemetry-toolkit/telem-data.pl new file: telemetry-toolkit/telem-data91.pl new file: telemetry-toolkit/telem-eqns.pl new file: telemetry-toolkit/telem-m0xer-3.txt new file: telemetry-toolkit/telem-parm.pl new file: telemetry-toolkit/telem-unit.pl new file: telemetry-toolkit/telem-volts.conf new file: telemetry-toolkit/telem-volts.py modified: telemetry.c modified: textcolor.c modified: tq.c modified: tt_text.c modified: tt_text.h modified: tt_user.c modified: tt_user.h modified: utm2ll.c modified: version.h new file: walk96.c modified: xmit.c
2015-09-07 23:56:20 +00:00
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <time.h>
Development snapshot 1.3 dev F. Changes to be committed: modified: .gitattributes modified: CHANGES.md modified: Makefile modified: Makefile.linux new file: Makefile.macosx modified: Makefile.win modified: aclients.c modified: aprs_tt.c modified: aprs_tt.h modified: atest.c modified: audio.c modified: audio.h new file: audio_portaudio.c new file: audio_stats.c new file: audio_stats.h modified: audio_win.c modified: ax25_pad.c modified: ax25_pad.h modified: beacon.c modified: config.c modified: config.h modified: decode_aprs.c modified: decode_aprs.h modified: demod.c modified: digipeater.c modified: direwolf.c modified: direwolf.h modified: dlq.c modified: doc/README.md modified: doc/Raspberry-Pi-APRS.pdf modified: doc/User-Guide.pdf new file: doc/WA8LMF-TNC-Test-CD-Results.pdf modified: dtime_now.c modified: dtmf.c modified: dw-start.sh modified: encode_aprs.c modified: encode_aprs.h modified: gen_packets.c modified: gen_tone.c modified: gen_tone.h new file: generic.conf modified: grm_sym.h modified: hdlc_rec.c modified: hdlc_rec.h modified: igate.c modified: kiss.c modified: kiss_frame.c modified: kissnet.c modified: latlong.c modified: man1/direwolf.1 modified: mgn_icon.h modified: misc/README-dire-wolf.txt new file: misc/strlcat.c new file: misc/strlcpy.c modified: morse.c new file: morse.h modified: nmea.c modified: pfilter.c modified: ptt.c new file: serial_port.c new file: serial_port.h modified: server.c modified: symbols.c modified: symbols.h new file: telemetry-toolkit/telem-balloon.conf new file: telemetry-toolkit/telem-balloon.pl new file: telemetry-toolkit/telem-bits.pl new file: telemetry-toolkit/telem-data.pl new file: telemetry-toolkit/telem-data91.pl new file: telemetry-toolkit/telem-eqns.pl new file: telemetry-toolkit/telem-m0xer-3.txt new file: telemetry-toolkit/telem-parm.pl new file: telemetry-toolkit/telem-unit.pl new file: telemetry-toolkit/telem-volts.conf new file: telemetry-toolkit/telem-volts.py modified: telemetry.c modified: textcolor.c modified: tq.c modified: tt_text.c modified: tt_text.h modified: tt_user.c modified: tt_user.h modified: utm2ll.c modified: version.h new file: walk96.c modified: xmit.c
2015-09-07 23:56:20 +00:00
#include "audio_stats.h"
#include "textcolor.h"
#include "dtime_now.h"
#include "demod.h" /* for alevel_t & demod_get_audio_level() */
/*------------------------------------------------------------------
*
* Name: audio_stats
*
* Purpose: Add sample count from one buffer to the statistics.
* Print if specified amount of time has passed.
*
* Inputs: adev - Audio device number: 0, 1, ..., MAX_ADEVS-1
*
nchan - Number of channels for this device, 1 or 2.
*
* nsamp - How many audio samples were read.
*
* interval - How many seconds between reports.
* 0 to turn off.
*
* Returns: none
*
* Description: ...
*
*----------------------------------------------------------------*/
void audio_stats (int adev, int nchan, int nsamp, int interval)
{
/* Gather numbers for read from audio device. */
static time_t last_time[MAX_ADEVS] = { 0, 0, 0 };
time_t this_time[MAX_ADEVS];
static int sample_count[MAX_ADEVS];
static int error_count[MAX_ADEVS];
static int suppress_first[MAX_ADEVS];
if (interval <= 0) {
return;
}
assert (adev >= 0 && adev < MAX_ADEVS);
/*
* Print information about the sample rate as a troubleshooting aid.
* I've never seen an issue with Windows or x86 Linux but the Raspberry Pi
* has a very troublesome audio input system where many samples got lost.
*
* While we are at it we can also print the current audio level(s) providing
* more clues if nothing is being decoded.
*/
if (last_time[adev] == 0) {
last_time[adev] = time(NULL);
sample_count[adev] = 0;
error_count[adev] = 0;
suppress_first[adev] = 1;
/* suppressing the first one could mean a rather */
/* long wait for the first message. We make the */
/* first collection interval 3 seconds. */
last_time[adev] -= (interval - 3);
}
else {
if (nsamp > 0) {
sample_count[adev] += nsamp;
}
else {
error_count[adev]++;
}
this_time[adev] = time(NULL);
if (this_time[adev] >= last_time[adev] + interval) {
if (suppress_first[adev]) {
/* The issue we had is that the first time the rate */
/* would be off considerably because we didn't start */
/* on a second boundary. So we will suppress printing */
/* of the first one. */
suppress_first[adev] = 0;
}
else {
float ave_rate = (sample_count[adev] / 1000.0) / interval;
text_color_set(DW_COLOR_DEBUG);
if (nchan > 1) {
int ch0 = ADEVFIRSTCHAN(adev);
alevel_t alevel0 = demod_get_audio_level(ch0,0);
int ch1 = ADEVFIRSTCHAN(adev) + 1;
alevel_t alevel1 = demod_get_audio_level(ch1,0);
dw_printf ("\nADEVICE%d: Sample rate approx. %.1f k, %d errors, receive audio levels CH%d %d, CH%d %d\n\n",
adev, ave_rate, error_count[adev], ch0, alevel0.rec, ch1, alevel1.rec);
}
else {
int ch0 = ADEVFIRSTCHAN(adev);
alevel_t alevel0 = demod_get_audio_level(ch0,0);
dw_printf ("\nADEVICE%d: Sample rate approx. %.1f k, %d errors, receive audio level CH%d %d\n\n",
adev, ave_rate, error_count[adev], ch0, alevel0.rec);
}
}
last_time[adev] = this_time[adev];
sample_count[adev] = 0;
error_count[adev] = 0;
}
}
} /* end audio_stats.c */