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sound card selection dialog

pull/1/merge
Oona 2011-07-31 00:01:34 +03:00
rodzic 6390404972
commit 15bb69783f
1 zmienionych plików z 55 dodań i 47 usunięć
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102
slowrx.c
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@ -160,79 +160,87 @@ void initPcm() {
GtkWidget *sdialog;
GtkWidget *cardcombo;
GtkWidget *contentarea;
int card;
char *cardname;
sdialog = gtk_dialog_new_with_buttons("Select sound card",NULL,GTK_DIALOG_MODAL,GTK_STOCK_OK,GTK_RESPONSE_ACCEPT,GTK_STOCK_CANCEL,GTK_RESPONSE_REJECT,NULL);
cardcombo = gtk_combo_box_text_new();
gtk_dialog_add_action_widget(sdialog, cardcombo, 0);
cardcombo = gtk_combo_box_text_new();
contentarea = gtk_dialog_get_content_area(GTK_DIALOG(sdialog));
gtk_box_pack_start(GTK_BOX(contentarea), cardcombo, FALSE, TRUE, 0);
gtk_widget_show_all (cardcombo);
card=-1;
do {
snd_card_next(&card);
if (card != -1) {
snd_card_get_name(card,&cardname);
gtk_combo_box_text_append_text(cardcombo, &cardname);
gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(cardcombo), cardname);
}
} while (card != -1);
gtk_combo_box_set_active(GTK_COMBO_BOX(cardcombo), 0);
gint result = gtk_dialog_run(GTK_DIALOG(sdialog));
if (result == -2) {
exit(EXIT_SUCCESS);
}
snd_pcm_stream_t PcmInStream = SND_PCM_STREAM_CAPTURE;
snd_pcm_hw_params_t *hwparams;
int cardnum = gtk_combo_box_get_active (GTK_COMBO_BOX(cardcombo));
gtk_widget_destroy(sdialog);
snd_pcm_stream_t PcmInStream = SND_PCM_STREAM_CAPTURE;
snd_pcm_hw_params_t *hwparams;
char *pcm_name;
char pcm_name[60];
sprintf(pcm_name,"plug:default:%d",cardnum);
pcm_name = strdup("default");
snd_pcm_hw_params_alloca(&hwparams);
snd_pcm_hw_params_alloca(&hwparams);
if (snd_pcm_open(&pcm_handle, pcm_name, PcmInStream, 0) < 0) {
fprintf(stderr, "ALSA: Error opening PCM device %s\n", pcm_name);
exit(EXIT_FAILURE);
}
if (snd_pcm_open(&pcm_handle, pcm_name, PcmInStream, 0) < 0) {
fprintf(stderr, "ALSA: Error opening PCM device %s\n", pcm_name);
exit(EXIT_FAILURE);
}
/* Init hwparams with full configuration space */
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) {
fprintf(stderr, "ALSA: Can not configure this PCM device.\n");
exit(EXIT_FAILURE);
}
/* Init hwparams with full configuration space */
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) {
fprintf(stderr, "ALSA: Can not configure this PCM device.\n");
exit(EXIT_FAILURE);
}
unsigned int exact_rate;
unsigned int exact_rate; /* Sample rate returned by */
/* snd_pcm_hw_params_set_rate_near */
if (snd_pcm_hw_params_set_access(pcm_handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED) < 0) {
fprintf(stderr, "ALSA: Error setting interleaved access.\n");
exit(EXIT_FAILURE);
}
/* Set sample format */
if (snd_pcm_hw_params_set_format(pcm_handle, hwparams, SND_PCM_FORMAT_S16_LE) < 0) {
fprintf(stderr, "ALSA: Error setting format S16_LE.\n");
exit(EXIT_FAILURE);
}
if (snd_pcm_hw_params_set_access(pcm_handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED) < 0) {
fprintf(stderr, "ALSA: Error setting interleaved access.\n");
exit(EXIT_FAILURE);
}
/* Set sample format */
if (snd_pcm_hw_params_set_format(pcm_handle, hwparams, SND_PCM_FORMAT_S16_LE) < 0) {
fprintf(stderr, "ALSA: Error setting format S16_LE.\n");
exit(EXIT_FAILURE);
}
exact_rate = 44100;
if (snd_pcm_hw_params_set_rate_near(pcm_handle, hwparams, &exact_rate, 0) < 0) {
fprintf(stderr, "ALSA: Error setting sample rate.\n");
exit(EXIT_FAILURE);
}
SRate = exact_rate;
if (exact_rate != 44100) fprintf(stderr, "ALSA: Using %d Hz instead of 44100.\n", exact_rate);
exact_rate = 44100;
if (snd_pcm_hw_params_set_rate_near(pcm_handle, hwparams, &exact_rate, 0) < 0) {
fprintf(stderr, "ALSA: Error setting sample rate.\n");
exit(EXIT_FAILURE);
}
SRate = exact_rate;
if (exact_rate != 44100) fprintf(stderr, "ALSA: Using %d Hz instead of 44100.\n", exact_rate);
/* Set number of channels */
if (snd_pcm_hw_params_set_channels(pcm_handle, hwparams, 1) < 0) {
fprintf(stderr, "ALSA: Can't set channels to mono.\n");
exit(EXIT_FAILURE);
}
/* Set number of channels */
if (snd_pcm_hw_params_set_channels(pcm_handle, hwparams, 1) < 0) {
fprintf(stderr, "ALSA: Can't set channels to mono.\n");
exit(EXIT_FAILURE);
}
/* Apply HW parameter settings to */
/* PCM device and prepare device */
if (snd_pcm_hw_params(pcm_handle, hwparams) < 0) {
fprintf(stderr, "ALSA: Error setting HW params.\n");
exit(EXIT_FAILURE);
}
/* Apply HW parameter settings to */
/* PCM device and prepare device */
if (snd_pcm_hw_params(pcm_handle, hwparams) < 0) {
fprintf(stderr, "ALSA: Error setting HW params.\n");
exit(EXIT_FAILURE);
}
}