func_talkdetect patch

func_talkdetect.patch

diff --git a/funcs/func_talkdetect.c b/funcs/func_talkdetect.c
index 5c7f41ab39..ea27d3eeee 100644
--- a/funcs/func_talkdetect.c
+++ b/funcs/func_talkdetect.c
@@ -159,6 +159,7 @@ static const struct ast_datastore_info talk_detect_datastore = {
 static int talk_detect_audiohook_cb(struct ast_audiohook *audiohook, struct ast_channel *chan, struct ast_frame *frame, enum ast_audiohook_direction direction)
 {
        int total_silence;
+       int talking;
        int update_talking = 0;
        struct ast_datastore *datastore;
        struct talk_detect_params *td_params;
@@ -181,14 +182,16 @@ static int talk_detect_audiohook_cb(struct ast_audiohook *audiohook, struct ast_
        }
        td_params = datastore->data;
 
-       ast_dsp_silence(td_params->dsp, frame, &total_silence);
+       talking = !ast_dsp_silence(td_params->dsp, frame, &total_silence);
 
        if (total_silence < td_params->dsp_silence_threshold) {
-               if (!td_params->talking) {
-                       update_talking = 1;
-                       td_params->talking_start = ast_tvnow();
+               if (talking) {
+                       if (!td_params->talking) {
+                               update_talking = 1;
+                               td_params->talking_start = ast_tvnow();
+                       }
+                       td_params->talking = 1;
                }
-               td_params->talking = 1;
        } else {
                if (td_params->talking) {
                        update_talking = 1;
@@ -202,6 +205,9 @@ static int talk_detect_audiohook_cb(struct ast_audiohook *audiohook, struct ast_
                if (!td_params->talking) {
                        int64_t diff_ms = ast_tvdiff_ms(ast_tvnow(), td_params->talking_start);
                        diff_ms -= td_params->dsp_silence_threshold;
+                       if (diff_ms < 0) {
+                               diff_ms = 0;
+                       }
 
                        blob = ast_json_pack("{s: i}", "duration", diff_ms);
                        if (!blob) {
@@ -357,7 +363,7 @@ static int talk_detect_fn_write(struct ast_channel *chan, const char *function,
 
                                if (dsp_talking_threshold < 1) {
                                        ast_log(AST_LOG_WARNING, "Invalid value %d for dsp_talking_threshold\n",
-                                               dsp_silence_threshold);
+                                               dsp_talking_threshold);
                                        return -1;
                                }
                        }