diff --git a/android-example/decodesdk/ir_decoder/jni/src/ir_decode_jni.c b/android-example/decodesdk/ir_decoder/jni/src/ir_decode_jni.c
index 001bb84..74bacdb 100644
--- a/android-example/decodesdk/ir_decoder/jni/src/ir_decode_jni.c
+++ b/android-example/decodesdk/ir_decoder/jni/src/ir_decode_jni.c
@@ -54,7 +54,7 @@ JNIEXPORT jint JNICALL Java_net_irext_decode_sdk_IRDecode_irOpenBinary
         (*env)->ReleaseByteArrayElements(env, binaries, j_buffer, JNI_ABORT);
         return IR_DECODE_FAILED;
     }
-
+    (*env)->ReleaseByteArrayElements(env, binaries, j_buffer, JNI_ABORT);
     return IR_DECODE_SUCCEEDED;
 }
 
diff --git a/android-example/decodesdk/ir_decoder/src/include/ir_ac_control.h b/android-example/decodesdk/ir_decoder/src/include/ir_ac_control.h
index 60d8722..68bf99f 100644
--- a/android-example/decodesdk/ir_decoder/src/include/ir_ac_control.h
+++ b/android-example/decodesdk/ir_decoder/src/include/ir_ac_control.h
@@ -126,30 +126,30 @@ typedef enum
     AC_APPLY_MAX
 } t_ac_apply;
 
-typedef struct _ac_hex
+typedef struct ac_hex
 {
     UINT8 len;
     UINT8 *data;
 } t_ac_hex;
 
-typedef struct _ac_level
+typedef struct ac_level
 {
     UINT16 low;
     UINT16 high;
 } t_ac_level;
 
-typedef struct _ac_bootcode
+typedef struct ac_bootcode
 {
     UINT16 len;
     UINT16 data[16];
-} t_ac_bootcode;
+} t_ac_boot_code;
 
-typedef struct _ac_delaycode
+typedef struct ac_delay_code
 {
     INT16 pos;
     UINT16 time[8];
     UINT16 time_cnt;
-} t_ac_delaycode;
+} t_ac_delay_code;
 
 /*
  * the array of tag_100X application data
@@ -157,26 +157,26 @@ typedef struct _ac_delaycode
  * byte_pos : the position of update byte
  * byte_value : the value to be updated to position
  */
-typedef struct _tag_comp_type_1
+typedef struct tag_comp_type_1
 {
     UINT8 seg_len;
     UINT8 *segment;
 } t_tag_comp;
 
-typedef struct _tag_swing_info
+typedef struct tag_swing_info
 {
     swing_type type;
     UINT8 mode_count;
     UINT8 dir_index;
 } t_swing_info;
 
-typedef struct _tag_power_1
+typedef struct tag_power_1
 {
     UINT8 len;
     t_tag_comp comp_data[AC_POWER_MAX];
 } t_power_1;
 
-typedef struct _tag_temp_1
+typedef struct tag_temp_1
 {
     UINT8 len;
     UINT8 type;
@@ -236,7 +236,7 @@ typedef struct tag_horiswing_1
 } hori_swing_1;
 #endif
 
-typedef struct _tag_checksum_data
+typedef struct tag_checksum_data
 {
     UINT8 len;
     UINT8 type;
@@ -273,7 +273,7 @@ typedef struct tag_solo_code
     UINT8 solo_function_codes[AC_FUNCTION_MAX - 1];
 } t_solo_code;
 
-typedef struct _ac_bitnum
+typedef struct ac_bitnum
 {
     INT16 pos;
     UINT16 bits;
@@ -302,7 +302,7 @@ typedef enum
     CHECKSUM_TYPE_MAX,
 } t_checksum_type;
 
-typedef struct _ac_n_mode_info
+typedef struct ac_n_mode_info
 {
     UINT8 enable;
     UINT8 all_speed;
@@ -320,8 +320,8 @@ typedef struct ac_protocol
     t_ac_hex default_code;
     t_ac_level zero;
     t_ac_level one;
-    t_ac_bootcode boot_code;
-    t_ac_delaycode dc[MAX_DELAYCODE_NUM];
+    t_ac_boot_code boot_code;
+    t_ac_delay_code dc[MAX_DELAYCODE_NUM];
     t_power_1 power1;
     t_temp_1 temp1;
     t_mode_1 mode1;
diff --git a/android-example/decodesdk/ir_decoder/src/include/ir_defs.h b/android-example/decodesdk/ir_decoder/src/include/ir_defs.h
index be31f58..9a9d8f6 100644
--- a/android-example/decodesdk/ir_decoder/src/include/ir_defs.h
+++ b/android-example/decodesdk/ir_decoder/src/include/ir_defs.h
@@ -12,6 +12,8 @@ Revision log:
 #ifndef _IR_DEFS_H
 #define _IR_DEFS_H
 
+#define IR_DECODE_LIB_VER "1.5.0"
+
 #if defined (BOARD_PC)
 #pragma ide diagnostic ignored "OCUnusedGlobalDeclarationInspection"
 #pragma ide diagnostic ignored "OCUnusedMacroInspection"
@@ -65,7 +67,7 @@ void noprint(const char *fmt, ...);
 #define ir_memset(A, B, C) memset(A, B, C)
 #define ir_strlen(A) strlen(A)
 #if ((defined BOARD_PC) || (defined BOARD_PC_JNI)) && (defined DEBUG)
-#define ir_printf printf
+#define ir_printf(...) do { printf(__VA_ARGS__); fflush(stdout); } while(0)
 #else
 #define ir_printf noprint
 #endif
diff --git a/android-example/decodesdk/ir_decoder/src/ir_decode.c b/android-example/decodesdk/ir_decoder/src/ir_decode.c
index 1994d5f..659cf8b 100644
--- a/android-example/decodesdk/ir_decoder/src/ir_decode.c
+++ b/android-example/decodesdk/ir_decoder/src/ir_decode.c
@@ -22,7 +22,7 @@ Revision log:
 struct ir_bin_buffer binary_file;
 struct ir_bin_buffer *p_ir_buffer = &binary_file;
 
-static const char* version = "0.2.5";
+static const char* version = IR_DECODE_LIB_VER;
 
 #if defined USE_DYNAMIC_TAG
 struct tag_head *tags;
@@ -82,6 +82,7 @@ static INT8 ir_ac_binary_open(UINT8 *binary, UINT16 bin_length);
 static UINT16 ir_ac_control(t_remote_ac_status ac_status, UINT16* user_data, UINT8 key_code,
                             BOOL change_wind_direction);
 static INT8 ir_ac_binary_close();
+static BOOL validate_ac_status(t_remote_ac_status* ac_status, BOOL change_wind_dir);
 
 #if !defined NO_FS
 static INT8 ir_tv_file_open(const char *file_name);
@@ -218,7 +219,19 @@ INT8 ir_binary_open(const UINT8 category, const UINT8 sub_category, UINT8* binar
             return IR_DECODE_FAILED;
         }
 
-        ret = ir_tv_binary_open(binary, bin_length);
+#if (defined(BOARD_PC) || defined (BOARD_PC_DLL) || defined (BOARD_ANDROID))
+        binary_content = (UINT8 *) ir_malloc(bin_length);
+        if (NULL == binary_content)
+        {
+            ir_printf("failed to malloc memory for binary\n");
+            return IR_DECODE_FAILED;
+        }
+        memcpy(binary_content, binary, bin_length);
+#else
+        binary_content = binary;
+#endif
+
+        ret = ir_tv_binary_open(binary_content, bin_length);
         if (IR_DECODE_SUCCEEDED == ret)
         {
             return ir_tv_binary_parse(ir_hexadecimal);
@@ -259,6 +272,10 @@ UINT16 ir_decode(UINT8 key_code, UINT16* user_data,
                   ac_status->ac_temp, ac_status->ac_wind_dir,
                   ac_status->ac_wind_speed,
                   key_code, change_wind_direction);
+        // ac status validation
+        if (FALSE == validate_ac_status(ac_status, change_wind_direction)) {
+            return 0;
+        }
         return ir_ac_control(*ac_status, user_data, key_code, change_wind_direction);
     }
 }
@@ -489,6 +506,35 @@ static INT8 ir_ac_binary_close()
     return IR_DECODE_SUCCEEDED;
 }
 
+static BOOL validate_ac_status(t_remote_ac_status* ac_status, BOOL change_wind_dir)
+{
+    if (AC_POWER_OFF != ac_status->ac_power && AC_POWER_ON != ac_status->ac_power)
+    {
+        return FALSE;
+    }
+    if (ac_status->ac_mode < AC_MODE_COOL || ac_status->ac_mode >= AC_MODE_MAX)
+    {
+        return FALSE;
+    }
+    if (ac_status->ac_temp < AC_TEMP_16 || ac_status->ac_temp >= AC_TEMP_MAX)
+    {
+        return FALSE;
+    }
+    if (ac_status->ac_wind_speed < AC_WS_AUTO || ac_status->ac_wind_speed >= AC_WS_MAX)
+    {
+        return FALSE;
+    }
+    if (ac_status->ac_wind_dir < AC_SWING_ON || ac_status->ac_wind_dir >= AC_SWING_MAX)
+    {
+        return FALSE;
+    }
+    if (0 != change_wind_dir && 1 != change_wind_dir)
+    {
+        return FALSE;
+    }
+    return TRUE;
+}
+
 // utils
 INT8 get_temperature_range(UINT8 ac_mode, INT8 *temp_min, INT8 *temp_max)
 {
@@ -652,7 +698,7 @@ static INT8 ir_tv_file_open(const char *file_name)
 
     if (stream == NULL)
     {
-        ir_printf("\nfile open failed\n");
+        ir_printf("file open failed\n");
         return IR_DECODE_FAILED;
     }
 
@@ -662,7 +708,7 @@ static INT8 ir_tv_file_open(const char *file_name)
     binary_content = (UINT8 *) ir_malloc(binary_length);
     if (NULL == binary_content)
     {
-        ir_printf("\nfailed to alloc memory for binary\n");
+        ir_printf("failed to malloc memory for binary\n");
         fclose(stream);
         return IR_DECODE_FAILED;
     }
@@ -681,6 +727,7 @@ static INT8 ir_tv_file_open(const char *file_name)
 
     if (IR_DECODE_FAILED == ir_tv_binary_open(binary_content, (UINT16) binary_length))
     {
+        ir_printf("failed to parse command type binary\n");
         ir_free(binary_content);
         binary_length = 0;
         return IR_DECODE_FAILED;
diff --git a/android-example/decodesdk/ir_decoder/src/ir_decode_test.c b/android-example/decodesdk/ir_decoder/src/ir_decode_test.c
index f3d3a85..bd6f469 100644
--- a/android-example/decodesdk/ir_decoder/src/ir_decode_test.c
+++ b/android-example/decodesdk/ir_decoder/src/ir_decode_test.c
@@ -30,14 +30,20 @@ void input_number(int *val)
     char n[50]={0};
     int i = 0;
     *val = 0;
-    scanf("%s", n);
+    if (0 != scanf("%s", n))
+    {
+        return;
+    }
     getchar();
     while(1)
     {
         if(n[i] < '0'||n[i] > '9')
         {
-            printf("\nInvalid number format, please re-input : ");
-            scanf("%s", n);
+            printf("invalid number format, please re-input : ");
+            if (0 != scanf("%s", n))
+            {
+                break;
+            }
             i=0;
         }
         else
@@ -94,13 +100,13 @@ static INT8 decode_as_ac(char *file_name)
     {
         if (1 == first_time)
         {
-            printf("Please input valid key code "
-                   "(Key code could be referenced from https://irext.net/doc#keymap) : \n");
+            printf("please input valid key code "
+                   "(key code could be referenced from https://irext.net/doc#keymap) : \n");
             first_time = 0;
         }
         else
         {
-            printf("Please input valid key code : \n");
+            printf("please input valid key code : \n");
         }
         input_number(&key_code);
 
@@ -219,7 +225,7 @@ static INT8 decode_as_ac(char *file_name)
                        ac_status.ac_wind_dir,
                        key_code);
                 length = ir_decode(key_code, user_data, &ac_status, change_wind_dir);
-                printf("\n === Binary decoded : %d\n", length);
+                printf("\n === binary decoded : %d\n", length);
                 for (index = 0; index < length; index++)
                 {
                     printf("%d, ", user_data[index]);
@@ -245,6 +251,7 @@ static INT8 decode_as_tv(char *file_name, UINT8 ir_hex_encode)
     // here remote category TV represents for command typed IR code
     if (IR_DECODE_FAILED == ir_file_open(REMOTE_CATEGORY_TV, ir_hex_encode, file_name))
     {
+        printf("failed to open file : %s\n", file_name);
         ir_close();
         return IR_DECODE_FAILED;
     }
@@ -253,13 +260,13 @@ static INT8 decode_as_tv(char *file_name, UINT8 ir_hex_encode)
     {
         if (1 == first_time)
         {
-            printf("Please input valid key code "
+            printf("please input valid key code "
                    "(Key code could be referenced from https://irext.net/doc#keymap) : \n");
             first_time = 0;
         }
         else
         {
-            printf("Please input valid key code : \n");
+            printf("please input valid key code : \n");
         }
         input_number(&key_code);
         if (99 == key_code)
@@ -267,7 +274,7 @@ static INT8 decode_as_tv(char *file_name, UINT8 ir_hex_encode)
             break;
         }
         length = ir_decode(key_code, user_data, NULL, 0);
-        printf("\n === Binary decoded : %d\n", length);
+        printf("\n === binary decoded : %d\n", length);
         for (index = 0; index < length; index++)
         {
             printf("%d, ", user_data[index]);
@@ -281,10 +288,10 @@ static INT8 decode_as_tv(char *file_name, UINT8 ir_hex_encode)
 }
 
 static void print_usage(const char *progn) {
-    printf("Usage: %s [function] [file] [subcate]\n"
-              "[function] : 0 - decode for AC; 1 - decode for TV\n"
+    printf("usage: %s [function] [file] [subcate]\n"
+              "[function] : 0 - decode for AC; 1 - decode for others\n"
               "[file]     : the remote control binary file\n"
-              "[subcate]  : the sub_cate value from remote_index", progn);
+              "[sub_cate]  : the sub_cate value from remote_index", progn);
 }
 
 int main(int argc, char *argv[])
@@ -304,17 +311,17 @@ int main(int argc, char *argv[])
     switch (function)
     {
         case '0':
-            printf("Decode %s as status-typed binary\n", argv[2]);
+            printf("decode %s as status-typed binary\n", argv[2]);
             decode_as_ac(argv[2]);
             break;
 
         case '1':
-            printf("Decode %s as command-typed binary in sub_cate %d\n", argv[2], ir_hex_encode);
+            printf("decode %s as command-typed binary in sub_cate %d\n", argv[2], ir_hex_encode);
             decode_as_tv(argv[2], ir_hex_encode);
             break;
 
         default:
-            printf("Decode functionality not supported : %c\n", function);
+            printf("decode functionality not supported : %c\n", function);
             break;
     }
 }
\ No newline at end of file
diff --git a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java
index 3c3e778..c75609d 100644
--- a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java
+++ b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java
@@ -4,6 +4,7 @@ import net.irext.decode.sdk.bean.ACStatus;
 import net.irext.decode.sdk.bean.TemperatureRange;
 import net.irext.decode.sdk.utils.Constants;
 
+
 /**
  * Filename:       IRDecode.java
  * Revised:        Date: 2017-04-22
@@ -66,11 +67,15 @@ public class IRDecode {
     }
 
     public int[] decodeBinary(int keyCode, ACStatus acStatus, int changeWindDir) {
-        int[] decoded;
+        int []decoded;
         synchronized (mSync) {
             if (null == acStatus) {
                 acStatus = new ACStatus();
             }
+            // validate ac status
+            if (!validateAcStatus(acStatus, keyCode, changeWindDir)) {
+                return new int[0];
+            }
             decoded = irDecode(keyCode, acStatus, changeWindDir);
         }
         return decoded;
@@ -86,7 +91,7 @@ public class IRDecode {
 
     public int[] getACSupportedMode() {
         // cool, heat, auto, fan, de-humidification
-        int[] retSupportedMode = {0, 0, 0, 0, 0};
+        int []retSupportedMode = {0, 0, 0, 0, 0};
         int supportedMode = irACGetSupportedMode();
         for (int i = Constants.ACMode.MODE_COOL.getValue(); i <=
                 Constants.ACMode.MODE_DEHUMIDITY.getValue(); i++) {
@@ -97,7 +102,7 @@ public class IRDecode {
 
     public int[] getACSupportedWindSpeed(int acMode) {
         // auto, low, medium, high
-        int[] retSupportedWindSpeed = {0, 0, 0, 0};
+        int []retSupportedWindSpeed = {0, 0, 0, 0};
         int supportedWindSpeed = irACGetSupportedWindSpeed(acMode);
         for (int i = Constants.ACWindSpeed.SPEED_AUTO.getValue();
              i <= Constants.ACWindSpeed.SPEED_HIGH.getValue();
@@ -109,7 +114,7 @@ public class IRDecode {
 
     public int[] getACSupportedSwing(int acMode) {
         // swing-on, swing-off
-        int[] retSupportedSwing = {0, 0};
+        int []retSupportedSwing= {0, 0};
         int supportedSwing = irACGetSupportedSwing(acMode);
         for (int i = Constants.ACSwing.SWING_ON.getValue();
              i <= Constants.ACSwing.SWING_OFF.getValue();
@@ -123,4 +128,31 @@ public class IRDecode {
         // how many directions supported by specific AC
         return irACGetSupportedWindDirection(acMode);
     }
+
+    private boolean validateAcStatus(ACStatus acStatus, int keyCode, int changeWindDir) {
+        if (acStatus.getAcPower() != Constants.ACPower.POWER_ON.getValue() &&
+            acStatus.getAcPower() != Constants.ACPower.POWER_OFF.getValue()) {
+            return false;
+        }
+        if (acStatus.getAcMode() < Constants.ACMode.MODE_COOL.getValue() ||
+                acStatus.getAcMode() > Constants.ACMode.MODE_DEHUMIDITY.getValue()) {
+            return false;
+        }
+        if (acStatus.getAcTemp() < Constants.ACTemperature.TEMP_16.getValue() ||
+                acStatus.getAcTemp() > Constants.ACTemperature.TEMP_30.getValue()) {
+            return false;
+        }
+        if (acStatus.getAcWindSpeed() < Constants.ACWindSpeed.SPEED_AUTO.getValue() ||
+                acStatus.getAcWindSpeed() > Constants.ACWindSpeed.SPEED_HIGH.getValue()) {
+            return false;
+        }
+        if (acStatus.getAcWindDir() < Constants.ACSwing.SWING_ON.getValue() ||
+                acStatus.getAcWindDir() > Constants.ACSwing.SWING_OFF.getValue()) {
+            return false;
+        }
+        if (changeWindDir != 0 && changeWindDir != 1) {
+            return false;
+        }
+        return true;
+    }
 }
\ No newline at end of file
diff --git a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/utils/Constants.java b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/utils/Constants.java
index 06d3f61..faca3cb 100644
--- a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/utils/Constants.java
+++ b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/utils/Constants.java
@@ -46,7 +46,10 @@ public class Constants {
         LIGHT(10),
         BSTB(11),
         CLEANING_ROBOT(12),
-        AIR_CLEANER(13);
+        AIR_CLEANER(13),
+        DYSON_SERIES(14),
+        CAMERA(15),
+        HEATER(16);
 
         private final int id;
 
@@ -168,13 +171,13 @@ public class Constants {
     }
 
     public enum ACFunction {
-        FUNCTION_SWITCH_POWER(0),
-        FUNCTION_CHANGE_MODE(1),
-        FUNCTION_TEMPERATURE_UP(2),
-        FUNCTION_TEMPERATURE_DOWN(3),
-        FUNCTION_SWITCH_WIND_SPEED(9),
-        FUNCTION_SWITCH_SWING(10),
-        FUNCTION_SWITCH_WIND_DIR(11);
+        FUNCTION_SWITCH_POWER(1),
+        FUNCTION_CHANGE_MODE(2),
+        FUNCTION_TEMPERATURE_UP(3),
+        FUNCTION_TEMPERATURE_DOWN(4),
+        FUNCTION_SWITCH_WIND_SPEED(5),
+        FUNCTION_SWITCH_WIND_DIR(6),
+        FUNCTION_SWITCH_SWING(7);
 
         private final int function;