static gboolean
gst_iir_equalizer_setup (GstAudioFilter * audio, const GstAudioInfo * info)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (audio);
switch (GST_AUDIO_INFO_FORMAT (info)) {
case GST_AUDIO_FORMAT_S16:
equ->history_size = history_size_gint16;
equ->process = gst_iir_equ_process_gint16;
break;
case GST_AUDIO_FORMAT_F32:
equ->history_size = history_size_gfloat;
equ->process = gst_iir_equ_process_gfloat;
break;
case GST_AUDIO_FORMAT_F64:
equ->history_size = history_size_gdouble;
equ->process = gst_iir_equ_process_gdouble;
break;
default:
return FALSE;
}
alloc_history (equ, info);
return TRUE;
}
static void
gst_iir_equalizer_nbands_init (GstIirEqualizerNBands * equ_n)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (equ_n);
gst_iir_equalizer_compute_frequencies (equ, 10);
}
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;
if (equ->need_new_coefficients) {
update_coefficients (equ);
set_passthrough (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;
}
static void
gst_iir_equalizer_3bands_init (GstIirEqualizer3Bands * equ_n,
GstIirEqualizer3BandsClass * g_class)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (equ_n);
gst_iir_equalizer_compute_frequencies (equ, 3);
}
static guint
gst_iir_equalizer_child_proxy_get_children_count (GstChildProxy * child_proxy)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (child_proxy);
GST_LOG ("we have %d children", equ->freq_band_count);
return equ->freq_band_count;
}
/* 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);
g_return_val_if_fail (index < equ->freq_band_count, NULL);
GST_LOG ("return child[%d] '%s'", index, GST_OBJECT_NAME (equ->bands[index]));
return (gst_object_ref (equ->bands[index]));
}
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 void
gst_iir_equalizer_nbands_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
switch (prop_id) {
case PROP_NUM_BANDS:
g_value_set_uint (value, equ->freq_band_count);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* 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;
}
static void
gst_iir_equalizer_finalize (GObject * object)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
gint i;
for (i = 0; i < equ->freq_band_count; i++) {
if (equ->bands[i])
gst_object_unparent (GST_OBJECT (equ->bands[i]));
equ->bands[i] = NULL;
}
equ->freq_band_count = 0;
g_free (equ->bands);
g_free (equ->history);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_iir_equalizer_3bands_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
switch (prop_id) {
case ARG_BAND0:
gst_child_proxy_get_property (GST_OBJECT (equ), "band0::gain", value);
break;
case ARG_BAND1:
gst_child_proxy_get_property (GST_OBJECT (equ), "band1::gain", value);
break;
case ARG_BAND2:
gst_child_proxy_get_property (GST_OBJECT (equ), "band2::gain", value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_iir_equalizer_setup (GstAudioFilter * audio, GstRingBufferSpec * fmt)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (audio);
switch (fmt->type) {
case GST_BUFTYPE_LINEAR:
switch (fmt->width) {
case 16:
equ->history_size = history_size_gint16;
equ->process = gst_iir_equ_process_gint16;
break;
default:
return FALSE;
}
break;
case GST_BUFTYPE_FLOAT:
switch (fmt->width) {
case 32:
equ->history_size = history_size_gfloat;
equ->process = gst_iir_equ_process_gfloat;
break;
case 64:
equ->history_size = history_size_gdouble;
equ->process = gst_iir_equ_process_gdouble;
break;
default:
return FALSE;
}
break;
default:
return FALSE;
}
alloc_history (equ);
return TRUE;
}
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);
}
