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/*
* BlueALSA - cmd-volume.c
* Copyright (c) 2016-2024 Arkadiusz Bokowy
*
* This file is a part of bluez-alsa.
*
* This project is licensed under the terms of the MIT license.
*
*/
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <dbus/dbus.h>
#include "cli.h"
#include "shared/dbus-client-pcm.h"
static void usage(const char *command) {
printf("Get or set the volume value of the given PCM.\n\n");
cli_print_usage("%s [OPTION]... PCM-PATH [VOLUME [VOLUME]]", command);
printf("\nOptions:\n"
" -h, --help\t\tShow this message and exit\n"
"\nPositional arguments:\n"
" PCM-PATH\tBlueALSA PCM D-Bus object path\n"
" VOLUME\tVolume value (range depends on BT transport)\n"
);
}
static int cmd_volume_func(int argc, char *argv[]) {
int opt;
const char *opts = "hqv";
const struct option longopts[] = {
{ "help", no_argument, NULL, 'h' },
{ "quiet", no_argument, NULL, 'q' },
{ "verbose", no_argument, NULL, 'v' },
{ 0 },
};
opterr = 0;
while ((opt = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
if (cli_parse_common_options(opt))
continue;
switch (opt) {
case 'h' /* --help */ :
usage(argv[0]);
return EXIT_SUCCESS;
default:
cmd_print_error("Invalid argument '%s'", argv[optind - 1]);
return EXIT_FAILURE;
}
}
if (argc - optind < 1) {
cmd_print_error("Missing BlueALSA PCM path argument");
return EXIT_FAILURE;
}
if (argc - optind > 3) {
cmd_print_error("Invalid number of arguments");
return EXIT_FAILURE;
}
DBusError err = DBUS_ERROR_INIT;
const char *path = argv[optind];
struct ba_pcm pcm;
if (!cli_get_ba_pcm(path, &pcm, &err)) {
cmd_print_error("Couldn't get BlueALSA PCM: %s", err.message);
return EXIT_FAILURE;
}
if (argc - optind == 1) {
cli_print_pcm_volume(&pcm);
return EXIT_SUCCESS;
}
int vol1, vol2;
vol1 = vol2 = atoi(argv[optind + 1]);
if (argc - optind == 3)
vol2 = atoi(argv[optind + 2]);
if (pcm.transport & BA_PCM_TRANSPORT_MASK_A2DP) {
if (vol1 < 0 || vol1 > 127) {
cmd_print_error("Invalid volume [0, 127]: %d", vol1);
return EXIT_FAILURE;
}
pcm.volume.ch1_volume = vol1;
if (pcm.channels == 2) {
if (vol2 < 0 || vol2 > 127) {
cmd_print_error("Invalid volume [0, 127]: %d", vol2);
return EXIT_FAILURE;
}
pcm.volume.ch2_volume = vol2;
}
}
else {
if (vol1 < 0 || vol1 > 15) {
cmd_print_error("Invalid volume [0, 15]: %d", vol1);
return EXIT_FAILURE;
}
pcm.volume.ch1_volume = vol1;
}
if (!ba_dbus_pcm_update(&config.dbus, &pcm, BLUEALSA_PCM_VOLUME, &err)) {
cmd_print_error("Volume loudness update failed: %s", err.message);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
const struct cli_command cmd_volume = {
"volume",
"Get or set PCM audio volume",
cmd_volume_func,
};
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