--- /dev/null
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#ifdef HAVE_FEATURES_H
+#include <features.h>
+#endif
+
+#include <Eo.h>
+#include "ecore_audio_private.h"
+#include <math.h>
+
+EAPI Eo_Op ECORE_AUDIO_OBJ_IN_TONE_BASE_ID = EO_NOOP;
+
+#define MY_CLASS ECORE_AUDIO_OBJ_IN_TONE_CLASS
+#define MY_CLASS_NAME "ecore_audio_obj_in_tone"
+
+struct _Ecore_Audio_Tone
+{
+ int freq;
+ int phase;
+};
+
+typedef struct _Ecore_Audio_Tone Ecore_Audio_Tone;
+
+static void _read(Eo *eo_obj, void *_pd, va_list *list)
+{
+ int i, remain;
+ Ecore_Audio_Tone *obj = _pd;
+ Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
+
+
+ void *data = va_arg(*list, void *);
+ int len = va_arg(*list, int);
+ int *ret = va_arg(*list, int *);
+
+ float *val = data;
+
+ remain = in_obj->length * in_obj->samplerate * 4 - obj->phase * 4;
+ if (remain > len)
+ remain = len;
+
+ for (i=0; i<remain/4; i++) {
+ val[i] = sin(2* M_PI * obj->freq * (obj->phase + i) / in_obj->samplerate);
+ }
+
+ obj->phase += i;
+
+ if (ret)
+ *ret = remain;
+}
+
+static void _seek(Eo *eo_obj, void *_pd, va_list *list)
+{
+ int tmp;
+ Ecore_Audio_Tone *obj = _pd;
+ Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
+
+ double offs = va_arg(*list, double);
+ int mode = va_arg(*list, int);
+ double *ret = va_arg(*list, double *);
+
+ switch (mode) {
+ case SEEK_SET:
+ tmp = offs * in_obj->samplerate;
+ break;
+ case SEEK_CUR:
+ tmp = obj->phase + offs * in_obj->samplerate;
+ break;
+ case SEEK_END:
+ tmp = (in_obj->length + offs) * in_obj->samplerate;
+ break;
+ default:
+ goto err;
+ }
+ if ((tmp < 0) || (tmp > in_obj->length * in_obj->samplerate))
+ goto err;
+
+ obj->phase = tmp;
+
+ if (ret)
+ *ret = (double)obj->phase / in_obj->samplerate;
+
+err:
+ if (ret)
+ *ret = -1.0;
+}
+
+static void _source_set(Eo *eo_obj, void *_pd, va_list *list)
+{
+ Ecore_Audio_Tone *obj = _pd;
+
+ Ecore_Audio_Object *ea_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_CLASS);
+ Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
+
+ const char *source = va_arg(*list, const char *);
+
+ eina_stringshare_replace(&ea_obj->source, source);
+
+ if (!ea_obj->source)
+ return;
+
+ ea_obj->format = ECORE_AUDIO_FORMAT_AUTO;
+}
+
+static void _source_get(Eo *eo_obj, void *_pd EINA_UNUSED, va_list *list)
+{
+ Ecore_Audio_Object *obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_CLASS);
+
+ const char **ret = va_arg(*list, const char **);
+
+ if (ret)
+ *ret = obj->source;
+}
+
+static void _format_set(Eo *eo_obj, void *_pd EINA_UNUSED, va_list *list)
+{
+ Ecore_Audio_Object *ea_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_CLASS);
+
+ Ecore_Audio_Format format= va_arg(*list, Ecore_Audio_Format);
+
+ if (ea_obj->source) {
+ ERR("Input is already open - cannot change format");
+ return;
+ }
+
+ switch (format) {
+ default:
+ ERR("Format not supported!");
+ return;
+ }
+ ea_obj->format = format;
+}
+
+static void _format_get(Eo *eo_obj, void *_pd EINA_UNUSED, va_list *list)
+{
+ Ecore_Audio_Object *obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_CLASS);
+
+ Ecore_Audio_Format *ret = va_arg(*list, Ecore_Audio_Format *);
+
+ if (ret)
+ *ret = obj->format;
+}
+
+static void _constructor(Eo *eo_obj, void *_pd, va_list *list EINA_UNUSED)
+{
+ Ecore_Audio_Tone *obj = _pd;
+ Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
+
+ eo_do_super(eo_obj, MY_CLASS, eo_constructor());
+
+ in_obj->channels = 1;
+ in_obj->samplerate = 44100;
+ in_obj->length = 1;
+
+ obj->freq = 1000;
+}
+
+static void _class_constructor(Eo_Class *klass)
+{
+ const Eo_Op_Func_Description func_desc[] = {
+ /* Virtual functions of parent class implemented in this class */
+ EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_CONSTRUCTOR), _constructor),
+ //EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_DESTRUCTOR), _destructor),
+
+ EO_OP_FUNC(ECORE_AUDIO_OBJ_ID(ECORE_AUDIO_OBJ_SUB_ID_SOURCE_SET), _source_set),
+ EO_OP_FUNC(ECORE_AUDIO_OBJ_ID(ECORE_AUDIO_OBJ_SUB_ID_SOURCE_GET), _source_get),
+ EO_OP_FUNC(ECORE_AUDIO_OBJ_ID(ECORE_AUDIO_OBJ_SUB_ID_FORMAT_SET), _format_set),
+ EO_OP_FUNC(ECORE_AUDIO_OBJ_ID(ECORE_AUDIO_OBJ_SUB_ID_FORMAT_GET), _format_get),
+
+ EO_OP_FUNC(ECORE_AUDIO_OBJ_IN_ID(ECORE_AUDIO_OBJ_IN_SUB_ID_SEEK), _seek),
+ EO_OP_FUNC(ECORE_AUDIO_OBJ_IN_ID(ECORE_AUDIO_OBJ_IN_SUB_ID_READ_INTERNAL), _read),
+
+ EO_OP_FUNC_SENTINEL
+ };
+
+ eo_class_funcs_set(klass, func_desc);
+}
+
+static const Eo_Op_Description op_desc[] = {
+ EO_OP_DESCRIPTION_SENTINEL
+};
+
+static const Eo_Class_Description class_desc = {
+ EO_VERSION,
+ MY_CLASS_NAME,
+ EO_CLASS_TYPE_REGULAR,
+ EO_CLASS_DESCRIPTION_OPS(&ECORE_AUDIO_OBJ_IN_TONE_BASE_ID, op_desc, ECORE_AUDIO_OBJ_IN_TONE_SUB_ID_LAST),
+ NULL,
+ sizeof(Ecore_Audio_Tone),
+ _class_constructor,
+ NULL
+};
+
+EO_DEFINE_CLASS(ecore_audio_obj_in_tone_class_get, &class_desc, ECORE_AUDIO_OBJ_IN_CLASS, NULL);