From: sooyeon.kim <sooyeon.kim@samsung.com>
Date: Thu, 26 Dec 2019 07:35:59 +0000 (+0900)
Subject: Add get_volume_decibel in vc_mgr_send_audio_streaming
X-Git-Tag: submit/tizen/20200115.024100~1^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bcd77dc707d084430b34d4b043d6b8b7fe13346f;p=platform%2Fcore%2Fuifw%2Fvoice-control.git

Add get_volume_decibel in vc_mgr_send_audio_streaming

Change-Id: I733e21ae281f230ab790bfe227a29cb3c7f07906
Signed-off-by: sooyeon.kim <sooyeon.kim@samsung.com>
(cherry picked from commit c88dd1938805c7bedb3c97d56ad48fac628cac7b)
---

diff --git a/client/vc_mgr.c b/client/vc_mgr.c
index 9f397e7..5112750 100644
--- a/client/vc_mgr.c
+++ b/client/vc_mgr.c
@@ -22,6 +22,7 @@
 #include <pthread.h>
 #include <sound_manager.h>
 #include <sound_manager_internal.h>
+#include <math.h>
 
 #include "vc_cmd_db.h"
 #include "vc_config_mgr.h"
@@ -2326,7 +2327,7 @@ int vc_mgr_cancel(void)
 }
 
 static int g_cnt = 0;
-static Eina_Bool __vc_mgr_set_volume(void* data)
+static Eina_Bool __vc_mgr_set_volume_timer_cb(void* data)
 {
 	g_cnt++;
 	g_volume_db = g_prev_volume_db + (g_cur_volume_db - g_prev_volume_db) / 5 * g_cnt;
@@ -2341,6 +2342,7 @@ static Eina_Bool __vc_mgr_set_volume(void* data)
 
 int __vc_mgr_cb_set_volume(float volume)
 {
+	// called in vc_mgr_dbus
 	g_prev_volume_db = g_volume_db;
 	g_cur_volume_db = volume;
 
@@ -2351,7 +2353,15 @@ int __vc_mgr_cb_set_volume(float volume)
 	}
 
 	g_cnt = 1;
-	g_m_set_volume_timer = ecore_timer_add(0.05, __vc_mgr_set_volume, NULL);
+	g_m_set_volume_timer = ecore_timer_add(0.05, __vc_mgr_set_volume_timer_cb, NULL);
+
+	return 0;
+}
+
+int __vc_mgr_set_volume(float volume)
+{
+	// called by app directly
+	g_volume_db = volume;
 
 	return 0;
 }
@@ -4367,6 +4377,38 @@ int vc_mgr_send_utterance_status(int pid, int utt_id, int utt_status)
 	return 0;
 }
 
+static float __get_volume_decibel(char* data, int size)
+{
+#define MAX_AMPLITUDE_MEAN_16 32768
+
+	int i, depthByte;
+	int count = 0;
+
+	float db = 0.0;
+	float rms = 0.0;
+	unsigned long long square_sum = 0;
+	short pcm16 = 0;
+
+	depthByte = 2;
+
+	for (i = 0; i < size; i += (depthByte<<1)) {
+		pcm16 = 0;
+		memcpy(&pcm16, data + i, sizeof(short));
+		square_sum += pcm16 * pcm16;
+		count++;
+	}
+
+	if (0 == count || 0 == square_sum) {
+		SLOG(LOG_ERROR, TAG_VCM, "[ERROR] No data");
+		rms = 1.0;
+	} else {
+		rms = sqrt((float)square_sum/count);
+	}
+
+	db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_16);
+	return db;
+}
+
 int vc_mgr_send_audio_streaming(vc_audio_streaming_event_e event, unsigned char* buffer, unsigned int len)
 {
 	SLOG(LOG_INFO, TAG_VCM, "[Manager] Send audio streaming to the engine service");
@@ -4410,6 +4452,10 @@ int vc_mgr_send_audio_streaming(vc_audio_streaming_event_e event, unsigned char*
 		return VC_ERROR_INVALID_STATE;
 	}
 
+	/* set volume */
+	float volume = __get_volume_decibel((char*)buffer, len);
+	__vc_mgr_set_volume(volume);
+
 	/* send audio streaming */
 	int ret = vc_mgr_dbus_send_audio_streaming(g_vc_m->handle, event, buffer, len);
 	if (0 != ret) {