[asterisk-commits] file: branch 1.4 r60361 - in /branches/1.4:
apps/ include/asterisk/ res/
asterisk-commits at lists.digium.com
asterisk-commits at lists.digium.com
Thu Apr 5 18:14:01 MST 2007
Author: file
Date: Thu Apr 5 20:14:00 2007
New Revision: 60361
URL: http://svn.digium.com/view/asterisk?view=rev&rev=60361
Log:
Add support for returning different types of results (ie: NBest).
Modified:
branches/1.4/apps/app_speech_utils.c
branches/1.4/include/asterisk/speech.h
branches/1.4/res/res_speech.c
Modified: branches/1.4/apps/app_speech_utils.c
URL: http://svn.digium.com/view/asterisk/branches/1.4/apps/app_speech_utils.c?view=diff&rev=60361&r1=60360&r2=60361
==============================================================================
--- branches/1.4/apps/app_speech_utils.c (original)
+++ branches/1.4/apps/app_speech_utils.c Thu Apr 5 20:14:00 2007
@@ -126,19 +126,28 @@
return speech;
}
-/* Helper function to find a specific speech recognition result by number */
-static struct ast_speech_result *find_result(struct ast_speech_result *results, int num)
-{
- struct ast_speech_result *result = NULL;
- int i = 0;
-
- result = results;
- while (result) {
- if (i == num)
+/* Helper function to find a specific speech recognition result by number and nbest alternative */
+static struct ast_speech_result *find_result(struct ast_speech_result *results, char *result_num)
+{
+ struct ast_speech_result *result = results;
+ char *tmp = NULL;
+ int nbest_num = 0, wanted_num = 0, i = 0;
+
+ if ((tmp = strchr(result_num, '/'))) {
+ *tmp++ = '\0';
+ nbest_num = atoi(result_num);
+ wanted_num = atoi(tmp);
+ } else {
+ wanted_num = atoi(result_num);
+ }
+
+ do {
+ if (result->nbest_num != nbest_num)
+ continue;
+ if (i == wanted_num)
break;
i++;
- result = result->next;
- }
+ } while ((result = result->next));
return result;
}
@@ -151,7 +160,7 @@
struct ast_speech *speech = find_speech(chan);
char tmp[128] = "";
- if (data == NULL || speech == NULL || !(result = find_result(speech->results, atoi(data))))
+ if (data == NULL || speech == NULL || !(result = find_result(speech->results, data)))
return -1;
snprintf(tmp, sizeof(tmp), "%d", result->score);
@@ -164,7 +173,7 @@
static struct ast_custom_function speech_score_function = {
.name = "SPEECH_SCORE",
.synopsis = "Gets the confidence score of a result.",
- .syntax = "SPEECH_SCORE(result number)",
+ .syntax = "SPEECH_SCORE([nbest number/]result number)",
.desc =
"Gets the confidence score of a result.\n",
.read = speech_score,
@@ -178,7 +187,7 @@
struct ast_speech_result *result = NULL;
struct ast_speech *speech = find_speech(chan);
- if (data == NULL || speech == NULL || !(result = find_result(speech->results, atoi(data))))
+ if (data == NULL || speech == NULL || !(result = find_result(speech->results, data)))
return -1;
if (result->text != NULL)
@@ -190,7 +199,7 @@
static struct ast_custom_function speech_text_function = {
.name = "SPEECH_TEXT",
.synopsis = "Gets the recognized text of a result.",
- .syntax = "SPEECH_TEXT(result number)",
+ .syntax = "SPEECH_TEXT([nbest number/]result number)",
.desc =
"Gets the recognized text of a result.\n",
.read = speech_text,
@@ -204,7 +213,7 @@
struct ast_speech_result *result = NULL;
struct ast_speech *speech = find_speech(chan);
- if (data == NULL || speech == NULL || !(result = find_result(speech->results, atoi(data))))
+ if (data == NULL || speech == NULL || !(result = find_result(speech->results, data)))
return -1;
if (result->grammar != NULL)
@@ -216,7 +225,7 @@
static struct ast_custom_function speech_grammar_function = {
.name = "SPEECH_GRAMMAR",
.synopsis = "Gets the matched grammar of a result if available.",
- .syntax = "SPEECH_GRAMMAR(result number)",
+ .syntax = "SPEECH_GRAMMAR([nbest number/]result number)",
.desc =
"Gets the matched grammar of a result if available.\n",
.read = speech_grammar,
@@ -244,6 +253,32 @@
"Changes a speech engine specific attribute.\n",
.read = NULL,
.write = speech_engine_write,
+};
+
+/*! \brief SPEECH_RESULTS_TYPE() Dialplan Function */
+static int speech_results_type_write(struct ast_channel *chan, char *cmd, char *data, const char *value)
+{
+ struct ast_speech *speech = find_speech(chan);
+
+ if (data == NULL || speech == NULL)
+ return -1;
+
+ if (!strcasecmp(value, "normal"))
+ ast_speech_change_results_type(speech, AST_SPEECH_RESULTS_TYPE_NORMAL);
+ else if (!strcasecmp(value, "nbest"))
+ ast_speech_change_results_type(speech, AST_SPEECH_RESULTS_TYPE_NBEST);
+
+ return 0;
+}
+
+static struct ast_custom_function speech_results_type_function = {
+ .name = "SPEECH_RESULTS_TYPE",
+ .synopsis = "Sets the type of results that will be returned.",
+ .syntax = "SPEECH_RESULTS_TYPE()=results type",
+ .desc =
+ "Sets the type of results that will be returned. Valid options are normal or nbest.",
+ .read = NULL,
+ .write = speech_results_type_write,
};
/*! \brief SPEECH() Dialplan Function */
@@ -779,6 +814,7 @@
res |= ast_custom_function_unregister(&speech_text_function);
res |= ast_custom_function_unregister(&speech_grammar_function);
res |= ast_custom_function_unregister(&speech_engine_function);
+ res |= ast_custom_function_unregister(&speech_results_type_function);
ast_module_user_hangup_all();
@@ -803,6 +839,7 @@
res |= ast_custom_function_register(&speech_text_function);
res |= ast_custom_function_register(&speech_grammar_function);
res |= ast_custom_function_register(&speech_engine_function);
+ res |= ast_custom_function_register(&speech_results_type_function);
return res;
}
Modified: branches/1.4/include/asterisk/speech.h
URL: http://svn.digium.com/view/asterisk/branches/1.4/include/asterisk/speech.h?view=diff&rev=60361&r1=60360&r2=60361
==============================================================================
--- branches/1.4/include/asterisk/speech.h (original)
+++ branches/1.4/include/asterisk/speech.h Thu Apr 5 20:14:00 2007
@@ -37,6 +37,11 @@
#define AST_SPEECH_STATE_WAIT 2 /* Wait for results to become available */
#define AST_SPEECH_STATE_DONE 3 /* Processing is done */
+enum ast_speech_results_type {
+ AST_SPEECH_RESULTS_TYPE_NORMAL = 0,
+ AST_SPEECH_RESULTS_TYPE_NBEST,
+};
+
/* Speech structure */
struct ast_speech {
/*! Structure lock */
@@ -53,6 +58,8 @@
void *data;
/*! Cached results */
struct ast_speech_result *results;
+ /*! Type of results we want */
+ enum ast_speech_results_type results_type;
/*! Pointer to the engine used by this speech structure */
struct ast_speech_engine *engine;
};
@@ -79,6 +86,8 @@
int (*start)(struct ast_speech *speech);
/*! Change an engine specific setting */
int (*change)(struct ast_speech *speech, char *name, const char *value);
+ /*! Change the type of results we want back */
+ int (*change_results_type)(struct ast_speech *speech, enum ast_speech_results_type results_type);
/*! Try to get results */
struct ast_speech_result *(*get)(struct ast_speech *speech);
/*! Accepted formats by the engine */
@@ -92,6 +101,8 @@
char *text;
/*! Result score */
int score;
+ /*! NBest Alternative number if in NBest results type */
+ int nbest_num;
/*! Matched grammar */
char *grammar;
/*! List information */
@@ -120,6 +131,8 @@
int ast_speech_write(struct ast_speech *speech, void *data, int len);
/*! \brief Change an engine specific attribute */
int ast_speech_change(struct ast_speech *speech, char *name, const char *value);
+/*! \brief Change the type of results we want */
+int ast_speech_change_results_type(struct ast_speech *speech, enum ast_speech_results_type results_type);
/*! \brief Change state of a speech structure */
int ast_speech_change_state(struct ast_speech *speech, int state);
/*! \brief Register a speech recognition engine */
Modified: branches/1.4/res/res_speech.c
URL: http://svn.digium.com/view/asterisk/branches/1.4/res/res_speech.c?view=diff&rev=60361&r1=60360&r2=60361
==============================================================================
--- branches/1.4/res/res_speech.c (original)
+++ branches/1.4/res/res_speech.c Thu Apr 5 20:14:00 2007
@@ -293,6 +293,19 @@
return res;
}
+/*! \brief Change the type of results we want */
+int ast_speech_change_results_type(struct ast_speech *speech, enum ast_speech_results_type results_type)
+{
+ int res = 0;
+
+ speech->results_type = results_type;
+
+ if (speech->engine->change_results_type)
+ res = speech->engine->change_results_type(speech, results_type);
+
+ return res;
+}
+
/*! \brief Register a speech recognition engine */
int ast_speech_register(struct ast_speech_engine *engine)
{
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