static PyObject *
create_print(PyObject *self, PyObject *args)
{
PyObject *buffer;
int samples, sample_rate, stereo;
void *data;
const char *fingerprint;
if (!PyArg_ParseTuple(args, "Oiii", &buffer, &samples, &sample_rate, &stereo))
return NULL;
data = PyCObject_AsVoidPtr(buffer);
Py_BEGIN_ALLOW_THREADS
#ifdef __BIG_ENDIAN__
fingerprint = ofa_create_print(data, OFA_BIG_ENDIAN, samples, sample_rate, stereo);
#else
fingerprint = ofa_create_print(data, OFA_LITTLE_ENDIAN, samples, sample_rate, stereo);
#endif
Py_END_ALLOW_THREADS
if (fingerprint)
return PyString_FromString(fingerprint);
else
Py_RETURN_NONE;
}
static void
create_fingerprint (GstOFA * ofa)
{
GstBuffer *buf;
gint rate = GST_AUDIO_FILTER (ofa)->format.rate;
gint channels = GST_AUDIO_FILTER (ofa)->format.channels;
gint endianness =
(GST_AUDIO_FILTER (ofa)->format.
bigend) ? OFA_BIG_ENDIAN : OFA_LITTLE_ENDIAN;
GstTagList *tags;
GST_DEBUG ("Generating fingerprint");
buf =
gst_adapter_take_buffer (ofa->adapter,
gst_adapter_available (ofa->adapter));
ofa->fingerprint = g_strdup (ofa_create_print (GST_BUFFER_DATA (buf),
endianness, GST_BUFFER_SIZE (buf) / 2, rate,
(channels == 2) ? 1 : 0));
GST_DEBUG ("Generated fingerprint");
gst_buffer_unref (buf);
tags = gst_tag_list_new ();
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_OFA_FINGERPRINT, ofa->fingerprint, NULL);
gst_element_found_tags (GST_ELEMENT (ofa), tags);
ofa->record = FALSE;
}
static void
create_fingerprint (GstOFA * ofa)
{
GstBuffer *buf;
GstAudioFilter *ofa_filter = GST_AUDIO_FILTER (ofa);
gint rate = ofa_filter->format.rate;
gint channels = ofa_filter->format.channels;
gint endianness =
ofa_filter->format.bigend ? OFA_BIG_ENDIAN : OFA_LITTLE_ENDIAN;
GstTagList *tags;
guint available;
available = gst_adapter_available (ofa->adapter);
if (available == 0) {
GST_WARNING_OBJECT (ofa, "No data to take fingerprint from");
ofa->record = FALSE;
return;
}
if (GST_AUDIO_FILTER (ofa)->format.bigend)
endianness = OFA_BIG_ENDIAN;
else
endianness = OFA_LITTLE_ENDIAN;
GST_DEBUG_OBJECT (ofa, "Generating fingerprint for %u samples",
available / 2);
buf = gst_adapter_take_buffer (ofa->adapter, available);
ofa->fingerprint = g_strdup (ofa_create_print (GST_BUFFER_DATA (buf),
endianness, GST_BUFFER_SIZE (buf) / 2, rate,
(channels == 2) ? 1 : 0));
if (ofa->fingerprint) {
GST_INFO_OBJECT (ofa, "Generated fingerprint: %s", ofa->fingerprint);
} else {
GST_WARNING_OBJECT (ofa, "Failed to generate fingerprint");
}
gst_buffer_unref (buf);
if (ofa->fingerprint) {
tags = gst_tag_list_new ();
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_OFA_FINGERPRINT, ofa->fingerprint, NULL);
gst_element_found_tags (GST_ELEMENT (ofa), tags);
g_object_notify (G_OBJECT (ofa), "fingerprint");
}
ofa->record = FALSE;
}
static gpointer
xmms_ofa_thread (gpointer arg)
{
xmms_ofa_data_t *data = (xmms_ofa_data_t *)arg;
const char *fp;
g_mutex_lock (&data->mutex);
while (data->thread_state == XMMS_OFA_WAIT) {
g_cond_wait (&data->cond, &data->mutex);
}
if (data->thread_state == XMMS_OFA_ABORT) {
g_mutex_unlock (&data->mutex);
return NULL;
}
g_mutex_unlock (&data->mutex);
XMMS_DBG ("Calculating fingerprint... (will consume CPU)");
fp = ofa_create_print (data->buf,
#if G_BYTE_ORDER == G_BIG_ENDIAN
OFA_BIG_ENDIAN,
#else
OFA_LITTLE_ENDIAN,
#endif
data->bytes_to_read/2,
44100,
1);
g_mutex_lock (&data->mutex);
data->thread_state = XMMS_OFA_DONE;
data->fp = g_strdup (fp);
g_mutex_unlock (&data->mutex);
XMMS_DBG ("Fingerprint calculated: %s", fp);
return NULL;
}
