32 	int16_t level;  member
51 	snd_pcm_scope_level_t *level = snd_pcm_scope_get_callback_private(scope);  in level_enable()  local
53 	level->channels = calloc(snd_pcm_meter_get_channels(level->pcm), sizeof(*level->channels));  in level_enable()
54 	if (!level->channels) {  in level_enable()
55 		free(level);  in level_enable()
58 	snd_pcm_scope_set_callback_private(scope, level);  in level_enable()
59 	level->win = initscr();  in level_enable()
60 	winsdelln(level->win, snd_pcm_meter_get_channels(level->pcm));  in level_enable()
61         getyx(level->win, y, x);  in level_enable()
62 	level->top = y;  in level_enable()
68 	snd_pcm_scope_level_t *level = snd_pcm_scope_get_callback_private(scope);  in level_disable()  local
70 	free(level->channels);  in level_disable()
75 	snd_pcm_scope_level_t *level = snd_pcm_scope_get_callback_private(scope);  in level_close()  local
76 	free(level);  in level_close()
85 	snd_pcm_scope_level_t *level = snd_pcm_scope_get_callback_private(scope);  in level_stop()  local
87 	for (c = 0; c < snd_pcm_meter_get_channels(level->pcm); c++) {  in level_stop()
88 		move(level->top + c, 0);  in level_stop()
91 	move(level->top, 0);  in level_stop()
97 	snd_pcm_scope_level_t *level = snd_pcm_scope_get_callback_private(scope);  in level_update()  local
98 	snd_pcm_t *pcm = level->pcm;  in level_update()
106 	size = snd_pcm_meter_get_now(pcm) - level->old;  in level_update()
109 	offset = level->old % snd_pcm_meter_get_bufsize(pcm);  in level_update()
116 	max_decay = 32768 * ms / level->decay_ms;  in level_update()
124 		l = &level->channels[c];  in level_update()
125 		ptr = snd_pcm_scope_s16_get_channel_buffer(level->s16, c) + offset;  in level_update()
134 		ptr = snd_pcm_scope_s16_get_channel_buffer(level->s16, c);  in level_update()
143 		l->level = lev;  in level_update()
145 		if (l->peak_age >= level->peak_ms ||  in level_update()
150 		if (lev < l->level - max_decay)  in level_update()
151 			lev = l->level - max_decay;  in level_update()
152 		move(level->top + c, 0);  in level_update()
153 		lev_pos = lev * level->bar_width / 32768;  in level_update()
154 		peak_pos = l->peak * level->bar_width / 32768;  in level_update()
157 		mvaddch(level->top + c, peak_pos - 1, '#');  in level_update()
159 	move(level->top, 0);  in level_update()
161 	level->old = snd_pcm_meter_get_now(pcm);  in level_update()
166 	snd_pcm_scope_level_t *level = snd_pcm_scope_get_callback_private(scope);  in level_reset()  local
167 	snd_pcm_t *pcm = level->pcm;  in level_reset()
168 	memset(level->channels, 0, snd_pcm_meter_get_channels(pcm) * sizeof(*level->channels));  in level_reset()
169 	level->old = snd_pcm_meter_get_now(pcm);  in level_reset()
188 	snd_pcm_scope_level_t *level;  in snd_pcm_scope_level_open()  local
192 	level = calloc(1, sizeof(*level));  in snd_pcm_scope_level_open()
193 	if (!level) {  in snd_pcm_scope_level_open()
197 	level->pcm = pcm;  in snd_pcm_scope_level_open()
198 	level->bar_width = bar_width;  in snd_pcm_scope_level_open()
199 	level->decay_ms = decay_ms;  in snd_pcm_scope_level_open()
200 	level->peak_ms = peak_ms;  in snd_pcm_scope_level_open()
206 			free(level);  in snd_pcm_scope_level_open()
210 	level->s16 = s16;  in snd_pcm_scope_level_open()
212 	snd_pcm_scope_set_callback_private(scope, level);  in snd_pcm_scope_level_open()