static GstFlowReturn
gst_iir_equalizer_transform_ip (GstBaseTransform * btrans, GstBuffer * buf)
{
GstAudioFilter *filter = GST_AUDIO_FILTER (btrans);
GstIirEqualizer *equ = GST_IIR_EQUALIZER (btrans);
GstClockTime timestamp;
GstMapInfo map;
gint channels = GST_AUDIO_FILTER_CHANNELS (filter);
gboolean need_new_coefficients;
if (G_UNLIKELY (channels < 1 || equ->process == NULL))
return GST_FLOW_NOT_NEGOTIATED;
BANDS_LOCK (equ);
need_new_coefficients = equ->need_new_coefficients;
BANDS_UNLOCK (equ);
if (!need_new_coefficients && gst_base_transform_is_passthrough (btrans))
return GST_FLOW_OK;
timestamp = GST_BUFFER_TIMESTAMP (buf);
timestamp =
gst_segment_to_stream_time (&btrans->segment, GST_FORMAT_TIME, timestamp);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
GstIirEqualizerBand **filters = equ->bands;
guint f, nf = equ->freq_band_count;
gst_object_sync_values (GST_OBJECT (equ), timestamp);
/* sync values for bands too */
/* FIXME: iterating equ->bands is not thread-safe here */
for (f = 0; f < nf; f++) {
gst_object_sync_values (GST_OBJECT (filters[f]), timestamp);
}
}
BANDS_LOCK (equ);
if (need_new_coefficients) {
update_coefficients (equ);
set_passthrough (equ);
}
BANDS_UNLOCK (equ);
gst_buffer_map (buf, &map, GST_MAP_READWRITE);
equ->process (equ, map.data, map.size, channels);
gst_buffer_unmap (buf, &map);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_iir_equalizer_transform_ip (GstBaseTransform * btrans, GstBuffer * buf)
{
GstAudioFilter *filter = GST_AUDIO_FILTER (btrans);
GstIirEqualizer *equ = GST_IIR_EQUALIZER (btrans);
GstClockTime timestamp;
if (G_UNLIKELY (filter->format.channels < 1 || equ->process == NULL))
return GST_FLOW_NOT_NEGOTIATED;
BANDS_LOCK (equ);
if (equ->need_new_coefficients) {
update_coefficients (equ);
set_passthrough (equ);
}
BANDS_UNLOCK (equ);
if (gst_base_transform_is_passthrough (btrans))
return GST_FLOW_OK;
timestamp = GST_BUFFER_TIMESTAMP (buf);
timestamp =
gst_segment_to_stream_time (&btrans->segment, GST_FORMAT_TIME, timestamp);
if (GST_CLOCK_TIME_IS_VALID (timestamp))
gst_object_sync_values (G_OBJECT (equ), timestamp);
equ->process (equ, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf),
filter->format.channels);
return GST_FLOW_OK;
}
/* child proxy iface */
static GstObject *
gst_iir_equalizer_child_proxy_get_child_by_index (GstChildProxy * child_proxy,
guint index)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (child_proxy);
GstObject *ret;
BANDS_LOCK (equ);
if (G_UNLIKELY (index >= equ->freq_band_count)) {
BANDS_UNLOCK (equ);
g_return_val_if_fail (index < equ->freq_band_count, NULL);
}
ret = gst_object_ref (equ->bands[index]);
BANDS_UNLOCK (equ);
GST_LOG_OBJECT (equ, "return child[%d] %" GST_PTR_FORMAT, index, ret);
return ret;
}
void
gst_iir_equalizer_compute_frequencies (GstIirEqualizer * equ, guint new_count)
{
guint old_count, i;
gdouble freq0, freq1, step;
gchar name[20];
if (equ->freq_band_count == new_count)
return;
BANDS_LOCK (equ);
if (G_UNLIKELY (equ->freq_band_count == new_count)) {
BANDS_UNLOCK (equ);
return;
}
old_count = equ->freq_band_count;
equ->freq_band_count = new_count;
GST_DEBUG ("bands %u -> %u", old_count, new_count);
if (old_count < new_count) {
/* add new bands */
equ->bands = g_realloc (equ->bands, sizeof (GstObject *) * new_count);
for (i = old_count; i < new_count; i++) {
/* otherwise they get names like 'iirequalizerband5' */
sprintf (name, "band%u", i);
equ->bands[i] = g_object_new (GST_TYPE_IIR_EQUALIZER_BAND,
"name", name, NULL);
GST_DEBUG ("adding band[%d]=%p", i, equ->bands[i]);
gst_object_set_parent (GST_OBJECT (equ->bands[i]), GST_OBJECT (equ));
gst_child_proxy_child_added (GST_OBJECT (equ),
GST_OBJECT (equ->bands[i]));
}
} else {
/* free unused bands */
for (i = new_count; i < old_count; i++) {
GST_DEBUG ("removing band[%d]=%p", i, equ->bands[i]);
gst_child_proxy_child_removed (GST_OBJECT (equ),
GST_OBJECT (equ->bands[i]));
gst_object_unparent (GST_OBJECT (equ->bands[i]));
equ->bands[i] = NULL;
}
}
alloc_history (equ);
/* set center frequencies and name band objects
* FIXME: arg! we can't change the name of parented objects :(
* application should read band->freq to get the name
*/
step = pow (HIGHEST_FREQ / LOWEST_FREQ, 1.0 / new_count);
freq0 = LOWEST_FREQ;
for (i = 0; i < new_count; i++) {
freq1 = freq0 * step;
if (i == 0)
equ->bands[i]->type = BAND_TYPE_LOW_SHELF;
else if (i == new_count - 1)
equ->bands[i]->type = BAND_TYPE_HIGH_SHELF;
else
equ->bands[i]->type = BAND_TYPE_PEAK;
equ->bands[i]->freq = freq0 + ((freq1 - freq0) / 2.0);
equ->bands[i]->width = freq1 - freq0;
GST_DEBUG ("band[%2d] = '%lf'", i, equ->bands[i]->freq);
g_object_notify (G_OBJECT (equ->bands[i]), "bandwidth");
g_object_notify (G_OBJECT (equ->bands[i]), "freq");
g_object_notify (G_OBJECT (equ->bands[i]), "type");
/*
if(equ->bands[i]->freq<10000.0)
sprintf (name,"%dHz",(gint)equ->bands[i]->freq);
else
sprintf (name,"%dkHz",(gint)(equ->bands[i]->freq/1000.0));
gst_object_set_name( GST_OBJECT (equ->bands[i]), name);
GST_DEBUG ("band[%2d] = '%s'",i,name);
*/
freq0 = freq1;
}
equ->need_new_coefficients = TRUE;
BANDS_UNLOCK (equ);
}
static void
gst_iir_equalizer_band_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstIirEqualizerBand *band = GST_IIR_EQUALIZER_BAND (object);
GstIirEqualizer *equ =
GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
switch (prop_id) {
case PROP_GAIN:{
gdouble gain;
gain = g_value_get_double (value);
GST_DEBUG_OBJECT (band, "gain = %lf -> %lf", band->gain, gain);
if (gain != band->gain) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->gain = gain;
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed gain = %lf ", band->gain);
}
break;
}
case PROP_FREQ:{
gdouble freq;
freq = g_value_get_double (value);
GST_DEBUG_OBJECT (band, "freq = %lf -> %lf", band->freq, freq);
if (freq != band->freq) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->freq = freq;
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed freq = %lf ", band->freq);
}
break;
}
case PROP_BANDWIDTH:{
gdouble width;
width = g_value_get_double (value);
GST_DEBUG_OBJECT (band, "width = %lf -> %lf", band->width, width);
if (width != band->width) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->width = width;
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed width = %lf ", band->width);
}
break;
}
case PROP_TYPE:{
GstIirEqualizerBandType type;
type = g_value_get_enum (value);
GST_DEBUG_OBJECT (band, "type = %d -> %d", band->type, type);
if (type != band->type) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->type = type;
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed type = %d ", band->type);
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
gst_object_unref (equ);
}
static void
gst_iir_equalizer_band_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstIirEqualizerBand *band = GST_IIR_EQUALIZER_BAND (object);
GstIirEqualizer *equ =
GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
switch (prop_id) {
case PROP_GAIN:{
gdouble gain;
gain = g_value_get_double (value);
GST_DEBUG_OBJECT (band, "gain = %lf -> %lf", band->gain, gain);
if (gain != band->gain) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->gain = gain;
set_passthrough (equ);
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed gain = %lf ", band->gain);
}
break;
}
case PROP_FREQ:{
gdouble freq;
freq = g_value_get_double (value);
GST_DEBUG_OBJECT (band, "freq = %lf -> %lf", band->freq, freq);
if (freq != band->freq) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->freq = freq;
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed freq = %lf ", band->freq);
}
break;
}
case PROP_BANDWIDTH:{
gdouble width;
width = g_value_get_double (value);
GST_DEBUG_OBJECT (band, "width = %lf -> %lf", band->width, width);
if (width != band->width) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->width = width;
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed width = %lf ", band->width);
}
break;
}
case PROP_TYPE:{
GstIirEqualizerBandType type;
type = g_value_get_enum (value);
GST_DEBUG_OBJECT (band, "type = %d -> %d", band->type, type);
if (type != band->type) {
BANDS_LOCK (equ);
equ->need_new_coefficients = TRUE;
band->type = type;
BANDS_UNLOCK (equ);
GST_DEBUG_OBJECT (band, "changed type = %d ", band->type);
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
#ifdef GSTREAMER_LITE
// We need to update coefficients and disable passthrough
// if needed, otherwise after we disable passthrough equalizer will not
// get re-enabled.
// BANDS_LOCK (equ);
// if (equ->need_new_coefficients) {
// update_coefficients (equ);
// set_passthrough (equ);
// }
// BANDS_UNLOCK (equ);
#endif // GSTREAMER_LITE
gst_object_unref (equ);
}