static void
gst_audio_dynamic_class_init (GstAudioDynamicClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstCaps *caps;
GST_DEBUG_CATEGORY_INIT (gst_audio_dynamic_debug, "audiodynamic", 0,
"audiodynamic element");
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->set_property = gst_audio_dynamic_set_property;
gobject_class->get_property = gst_audio_dynamic_get_property;
g_object_class_install_property (gobject_class, PROP_CHARACTERISTICS,
g_param_spec_enum ("characteristics", "Characteristics",
"Selects whether the ratio should be applied smooth (soft-knee) "
"or hard (hard-knee).",
GST_TYPE_AUDIO_DYNAMIC_CHARACTERISTICS, CHARACTERISTICS_HARD_KNEE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_MODE,
g_param_spec_enum ("mode", "Mode",
"Selects whether the filter should work on loud samples (compressor) or"
"quiet samples (expander).",
GST_TYPE_AUDIO_DYNAMIC_MODE, MODE_COMPRESSOR,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_THRESHOLD,
g_param_spec_float ("threshold", "Threshold",
"Threshold until the filter is activated", 0.0, 1.0,
0.0,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_RATIO,
g_param_spec_float ("ratio", "Ratio",
"Ratio that should be applied", 0.0, G_MAXFLOAT,
1.0,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (gstelement_class,
"Dynamic range controller", "Filter/Effect/Audio",
"Compressor and Expander", "Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
GST_AUDIO_FILTER_CLASS (klass)->setup =
GST_DEBUG_FUNCPTR (gst_audio_dynamic_setup);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip =
GST_DEBUG_FUNCPTR (gst_audio_dynamic_transform_ip);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip_on_passthrough = FALSE;
}
static void
gst_stereo_class_init (GstStereoClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (klass);
GstCaps *caps;
gst_element_class_set_static_metadata (element_class, "Stereo effect",
"Filter/Effect/Audio",
"Muck with the stereo signal to enhance its 'stereo-ness'",
"Erik Walthinsen <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (audiofilter_class, caps);
gst_caps_unref (caps);
gobject_class->set_property = gst_stereo_set_property;
gobject_class->get_property = gst_stereo_get_property;
g_object_class_install_property (gobject_class, ARG_ACTIVE,
g_param_spec_boolean ("active", "active", "active",
TRUE,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_STEREO,
g_param_spec_float ("stereo", "stereo", "stereo",
0.0, 1.0, 0.1,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_stereo_transform_ip);
}
static void
gst_webrtc_echo_probe_class_init (GstWebrtcEchoProbeClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *btrans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (klass);
gobject_class->finalize = gst_webrtc_echo_probe_finalize;
btrans_class->passthrough_on_same_caps = TRUE;
btrans_class->src_event = GST_DEBUG_FUNCPTR (gst_webrtc_echo_probe_src_event);
btrans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_webrtc_echo_probe_transform_ip);
btrans_class->stop = GST_DEBUG_FUNCPTR (gst_webrtc_echo_probe_stop);
audiofilter_class->setup = GST_DEBUG_FUNCPTR (gst_webrtc_echo_probe_setup);
gst_element_class_add_static_pad_template (element_class,
&gst_webrtc_echo_probe_src_template);
gst_element_class_add_static_pad_template (element_class,
&gst_webrtc_echo_probe_sink_template);
gst_element_class_set_static_metadata (element_class,
"Accoustic Echo Canceller probe",
"Generic/Audio",
"Gathers playback buffers for webrtcdsp",
"Nicolas Dufresne <*****@*****.**>");
}
static void
gst_audio_amplify_class_init (GstAudioAmplifyClass * klass)
{
GObjectClass *gobject_class;
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_audio_amplify_set_property;
gobject_class->get_property = gst_audio_amplify_get_property;
g_object_class_install_property (gobject_class, PROP_AMPLIFICATION,
g_param_spec_float ("amplification", "Amplification",
"Factor of amplification", -G_MAXFLOAT, G_MAXFLOAT,
1.0,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
* GstAudioAmplify:clipping-method
*
* Clipping method: clip mode set values higher than the maximum to the
* maximum. The wrap-negative mode pushes those values back from the
* opposite side, wrap-positive pushes them back from the same side.
*
**/
g_object_class_install_property (gobject_class, PROP_CLIPPING_METHOD,
g_param_spec_enum ("clipping-method", "Clipping method",
"Selects how to handle values higher than the maximum",
GST_TYPE_AUDIO_AMPLIFY_CLIPPING_METHOD, METHOD_CLIP,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
GST_AUDIO_FILTER_CLASS (klass)->setup =
GST_DEBUG_FUNCPTR (gst_audio_amplify_setup);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip =
GST_DEBUG_FUNCPTR (gst_audio_amplify_transform_ip);
}
static void
gst_audio_fx_base_iir_filter_class_init (GstAudioFXBaseIIRFilterClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
GstAudioFilterClass *filter_class = (GstAudioFilterClass *) klass;
GstCaps *caps;
GST_DEBUG_CATEGORY_INIT (gst_audio_fx_base_iir_filter_debug,
"audiofxbaseiirfilter", 0, "Audio IIR Filter Base Class");
gobject_class->finalize = gst_audio_fx_base_iir_filter_finalize;
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
filter_class->setup = GST_DEBUG_FUNCPTR (gst_audio_fx_base_iir_filter_setup);
trans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_audio_fx_base_iir_filter_transform_ip);
trans_class->transform_ip_on_passthrough = FALSE;
trans_class->stop = GST_DEBUG_FUNCPTR (gst_audio_fx_base_iir_filter_stop);
}
static void
gst_audio_fx_base_fir_filter_class_init (GstAudioFXBaseFIRFilterClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
GstAudioFilterClass *filter_class = (GstAudioFilterClass *) klass;
GstCaps *caps;
GST_DEBUG_CATEGORY_INIT (gst_audio_fx_base_fir_filter_debug,
"audiofxbasefirfilter", 0, "FIR filter base class");
gobject_class->finalize = gst_audio_fx_base_fir_filter_finalize;
gobject_class->set_property = gst_audio_fx_base_fir_filter_set_property;
gobject_class->get_property = gst_audio_fx_base_fir_filter_get_property;
/**
* GstAudioFXBaseFIRFilter:low-latency:
*
* Work in low-latency mode. This mode is much slower for large filter sizes
* but the latency is always only the pre-latency of the filter.
*/
g_object_class_install_property (gobject_class, PROP_LOW_LATENCY,
g_param_spec_boolean ("low-latency", "Low latency",
"Operate in low latency mode. This mode is slower but the "
"latency will only be the filter pre-latency. "
"Can only be changed in states < PAUSED!", DEFAULT_LOW_LATENCY,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstAudioFXBaseFIRFilter:drain-on-changes:
*
* Whether the filter should be drained when its coeficients change
*
* Note: Currently this only works if the kernel size is not changed!
* Support for drainless kernel size changes will be added in the future.
*/
g_object_class_install_property (gobject_class, PROP_DRAIN_ON_CHANGES,
g_param_spec_boolean ("drain-on-changes", "Drain on changes",
"Drains the filter when its coeficients change",
DEFAULT_DRAIN_ON_CHANGES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
trans_class->transform =
GST_DEBUG_FUNCPTR (gst_audio_fx_base_fir_filter_transform);
trans_class->start = GST_DEBUG_FUNCPTR (gst_audio_fx_base_fir_filter_start);
trans_class->stop = GST_DEBUG_FUNCPTR (gst_audio_fx_base_fir_filter_stop);
trans_class->sink_event =
GST_DEBUG_FUNCPTR (gst_audio_fx_base_fir_filter_sink_event);
trans_class->query = GST_DEBUG_FUNCPTR (gst_audio_fx_base_fir_filter_query);
trans_class->transform_size =
GST_DEBUG_FUNCPTR (gst_audio_fx_base_fir_filter_transform_size);
filter_class->setup = GST_DEBUG_FUNCPTR (gst_audio_fx_base_fir_filter_setup);
}
/* get notified of caps and plug in the correct process function */
static gboolean
gst_audio_wsinclimit_setup (GstAudioFilter * base, GstRingBufferSpec * format)
{
GstAudioWSincLimit *self = GST_AUDIO_WSINC_LIMIT (base);
gst_audio_wsinclimit_build_kernel (self);
return GST_AUDIO_FILTER_CLASS (parent_class)->setup (base, format);
}
static void
gst_audio_echo_class_init (GstAudioEchoClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *gstelement_class = (GstElementClass *) klass;
GstBaseTransformClass *basetransform_class = (GstBaseTransformClass *) klass;
GstAudioFilterClass *audioself_class = (GstAudioFilterClass *) klass;
GstCaps *caps;
GST_DEBUG_CATEGORY_INIT (gst_audio_echo_debug, "audioecho", 0,
"audioecho element");
gobject_class->set_property = gst_audio_echo_set_property;
gobject_class->get_property = gst_audio_echo_get_property;
gobject_class->finalize = gst_audio_echo_finalize;
g_object_class_install_property (gobject_class, PROP_DELAY,
g_param_spec_uint64 ("delay", "Delay",
"Delay of the echo in nanoseconds", 1, G_MAXUINT64,
1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS
| GST_PARAM_CONTROLLABLE));
g_object_class_install_property (gobject_class, PROP_MAX_DELAY,
g_param_spec_uint64 ("max-delay", "Maximum Delay",
"Maximum delay of the echo in nanoseconds"
" (can't be changed in PLAYING or PAUSED state)",
1, G_MAXUINT64, 1,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
g_object_class_install_property (gobject_class, PROP_INTENSITY,
g_param_spec_float ("intensity", "Intensity",
"Intensity of the echo", 0.0, 1.0,
0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS
| GST_PARAM_CONTROLLABLE));
g_object_class_install_property (gobject_class, PROP_FEEDBACK,
g_param_spec_float ("feedback", "Feedback",
"Amount of feedback", 0.0, 1.0,
0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS
| GST_PARAM_CONTROLLABLE));
gst_element_class_set_static_metadata (gstelement_class, "Audio echo",
"Filter/Effect/Audio",
"Adds an echo or reverb effect to an audio stream",
"Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
audioself_class->setup = GST_DEBUG_FUNCPTR (gst_audio_echo_setup);
basetransform_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_audio_echo_transform_ip);
basetransform_class->stop = GST_DEBUG_FUNCPTR (gst_audio_echo_stop);
}
/* get notified of caps and plug in the correct process function */
static gboolean
gst_audio_wsinclimit_setup (GstAudioFilter * base, const GstAudioInfo * info)
{
GstAudioWSincLimit *self = GST_AUDIO_WSINC_LIMIT (base);
gst_audio_wsinclimit_build_kernel (self, info);
return GST_AUDIO_FILTER_CLASS (parent_class)->setup (base, info);
}
static gboolean
gst_audio_cheb_band_setup (GstAudioFilter * base, GstRingBufferSpec * format)
{
GstAudioChebBand *filter = GST_AUDIO_CHEB_BAND (base);
generate_coefficients (filter);
return GST_AUDIO_FILTER_CLASS (parent_class)->setup (base, format);
}
static void
gst_audio_fx_base_fir_filter_base_init (gpointer g_class)
{
GstCaps *caps;
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (g_class),
caps);
gst_caps_unref (caps);
}
static void
gst_iir_equalizer_base_init (gpointer g_class)
{
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (g_class);
GstCaps *caps;
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (audiofilter_class, caps);
gst_caps_unref (caps);
}
/* get notified of caps and plug in the correct process function */
static gboolean
gst_audio_iir_filter_setup (GstAudioFilter * base, const GstAudioInfo * info)
{
GstAudioIIRFilter *self = GST_AUDIO_IIR_FILTER (base);
gint new_rate = GST_AUDIO_INFO_RATE (info);
if (GST_AUDIO_FILTER_RATE (self) != new_rate) {
g_signal_emit (G_OBJECT (self),
gst_audio_iir_filter_signals[SIGNAL_RATE_CHANGED], 0, new_rate);
}
return GST_AUDIO_FILTER_CLASS (parent_class)->setup (base, info);
}
static void
gst_stereo_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstCaps *caps;
gst_element_class_set_details (element_class, &stereo_details);
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (g_class),
caps);
gst_caps_unref (caps);
}
/* get notified of caps and plug in the correct process function */
static gboolean
gst_audio_fir_filter_setup (GstAudioFilter * base, GstRingBufferSpec * format)
{
GstAudioFIRFilter *self = GST_AUDIO_FIR_FILTER (base);
if (self->rate != format->rate) {
g_signal_emit (G_OBJECT (self),
gst_audio_fir_filter_signals[SIGNAL_RATE_CHANGED], 0, format->rate);
self->rate = format->rate;
}
return GST_AUDIO_FILTER_CLASS (parent_class)->setup (base, format);
}
static void
gst_audio_invert_class_init (GstAudioInvertClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstCaps *caps;
GST_DEBUG_CATEGORY_INIT (gst_audio_invert_debug, "audioinvert", 0,
"audioinvert element");
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->set_property = gst_audio_invert_set_property;
gobject_class->get_property = gst_audio_invert_get_property;
g_object_class_install_property (gobject_class, PROP_DEGREE,
g_param_spec_float ("degree", "Degree",
"Degree of inversion", 0.0, 1.0,
0.0,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (gstelement_class, "Audio inversion",
"Filter/Effect/Audio",
"Swaps upper and lower half of audio samples",
"Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip =
GST_DEBUG_FUNCPTR (gst_audio_invert_transform_ip);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip_on_passthrough = FALSE;
GST_AUDIO_FILTER_CLASS (klass)->setup =
GST_DEBUG_FUNCPTR (gst_audio_invert_setup);
}
static void
gst_audio_filter_template_base_init (gpointer g_class)
{
GstAudioFilterTemplateClass *klass = (GstAudioFilterTemplateClass *) g_class;
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (g_class);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
gst_element_class_set_details (element_class, &audio_filter_template_details);
caps = gst_caps_from_string (ALLOWED_CAPS_STRING);
gst_audio_filter_class_add_pad_templates (audiofilter_class, caps);
gst_caps_unref (caps);
}
static void
gst_stereo_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstCaps *caps;
gst_element_class_set_details_simple (element_class, "Stereo effect",
"Filter/Effect/Audio",
"Muck with the stereo signal to enhance its 'stereo-ness'",
"Erik Walthinsen <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (g_class),
caps);
gst_caps_unref (caps);
}
static void
gst_audio_echo_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
gst_element_class_set_details_simple (element_class, "Audio echo",
"Filter/Effect/Audio",
"Adds an echo or reverb effect to an audio stream",
"Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
}
static void
gst_audio_amplify_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
gst_element_class_set_details_simple (element_class, "Audio amplifier",
"Filter/Effect/Audio",
"Amplifies an audio stream by a given factor",
"Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
}
static void
gst_audio_invert_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
gst_element_class_set_details_simple (element_class, "Audio inversion",
"Filter/Effect/Audio",
"Swaps upper and lower half of audio samples",
"Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
}
/* initialize the stft's class */
static void gval_stft_class_init(GvalStftClass* klass) {
GObjectClass* gobject_class = G_OBJECT_CLASS(klass);
GstElementClass* gstelement_class
= GST_ELEMENT_CLASS(klass);
GstBaseTransformClass* base_transform_class
= GST_BASE_TRANSFORM_CLASS (klass);
GstAudioFilterClass* audio_filter_class
= GST_AUDIO_FILTER_CLASS(klass);
gobject_class->set_property = gval_stft_set_property;
gobject_class->get_property = gval_stft_get_property;
gobject_class->dispose = gval_stft_dispose;
stft_props[PROP_SILENT] = g_param_spec_boolean(
"silent", "Silent", "Produce verbose output ?",
FALSE, G_PARAM_READWRITE);
stft_props[PROP_WSIZE] = g_param_spec_uint(
"wsize", "Window Size", "Window Size of the FFT",
MIN_WINDOW_SIZE, MAX_WINDOW_SIZE, DEFAULT_WINDOW_SIZE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
stft_props[PROP_SSIZE] = g_param_spec_uint(
"ssize", "Shift Size", "Shift Size of the FFT",
MIN_SHIFT_SIZE, MAX_SHIFT_SIZE, DEFAULT_SHIFT_SIZE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
stft_props[PROP_LOCATION] = g_param_spec_string(
"location", "Location", "Path to the output file",
NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
g_object_class_install_properties(gobject_class,
N_PROPERTIES, stft_props);
gst_element_class_set_details_simple(gstelement_class,
"stft", "gval/feature",
"Short Time Fourier Transform",
"Weipeng He <*****@*****.**>");
gst_element_class_add_pad_template(gstelement_class,
gst_static_pad_template_get(&src_factory));
gst_element_class_add_pad_template(gstelement_class,
gst_static_pad_template_get(&sink_factory));
audio_filter_class->setup
= GST_DEBUG_FUNCPTR(gval_stft_setup);
base_transform_class->transform_ip
= GST_DEBUG_FUNCPTR(gval_stft_transform_ip);
}
static void
gst_plugin_template_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (klass);
GstCaps *caps;
gst_element_class_set_details_simple (element_class,
"Plugin",
"Filter/Effect/Audio",
"FIXME:Filters audio",
"AUTHOR_NAME AUTHOR_EMAIL");
caps = gst_caps_from_string (ALLOWED_CAPS_STRING);
gst_audio_filter_class_add_pad_templates (audiofilter_class, caps);
gst_caps_unref (caps);
}
static void
gst_fastspectrum_class_init (GstFastSpectrumClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstAudioFilterClass *filter_class = GST_AUDIO_FILTER_CLASS (klass);
GstCaps *caps;
gobject_class->set_property = gst_fastspectrum_set_property;
gobject_class->get_property = gst_fastspectrum_get_property;
gobject_class->finalize = gst_fastspectrum_finalize;
trans_class->start = GST_DEBUG_FUNCPTR (gst_fastspectrum_start);
trans_class->stop = GST_DEBUG_FUNCPTR (gst_fastspectrum_stop);
trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_fastspectrum_transform_ip);
trans_class->passthrough_on_same_caps = TRUE;
filter_class->setup = GST_DEBUG_FUNCPTR (gst_fastspectrum_setup);
g_object_class_install_property (gobject_class, PROP_INTERVAL,
g_param_spec_uint64 ("interval", "Interval",
"Interval of time between message posts (in nanoseconds)",
1, G_MAXUINT64, DEFAULT_INTERVAL,
GParamFlags(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_BANDS,
g_param_spec_uint ("bands", "Bands", "Number of frequency bands",
0, G_MAXUINT, DEFAULT_BANDS,
GParamFlags(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
GST_DEBUG_CATEGORY_INIT (gst_fastspectrum_debug, "spectrum", 0,
"audio spectrum analyser element");
gst_element_class_set_static_metadata (element_class, "Spectrum analyzer",
"Filter/Analyzer/Audio",
"Run an FFT on the audio signal, output spectrum data",
"Erik Walthinsen <*****@*****.**>, "
"Stefan Kost <*****@*****.**>, "
"Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (filter_class, caps);
gst_caps_unref (caps);
}
static void
gst_spectrum_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstCaps *caps;
gst_element_class_set_details_simple (element_class, "Spectrum analyzer",
"Filter/Analyzer/Audio",
"Run an FFT on the audio signal, output spectrum data",
"Erik Walthinsen <*****@*****.**>, "
"Stefan Kost <*****@*****.**>, "
"Sebastian Dröge <*****@*****.**>");
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (g_class),
caps);
gst_caps_unref (caps);
}
static void
gst_lv2_filter_class_init (GstLV2FilterClass * klass, LilvPlugin * lv2plugin)
{
GObjectClass *gobject_class;
GstBaseTransformClass *transform_class;
GstAudioFilterClass *audiofilter_class;
GParamSpec *p;
gint i, ix;
GST_DEBUG ("class_init %p", klass);
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_lv2_filter_set_property;
gobject_class->get_property = gst_lv2_filter_get_property;
audiofilter_class = GST_AUDIO_FILTER_CLASS (klass);
audiofilter_class->setup = gst_lv2_filter_setup;
transform_class = GST_BASE_TRANSFORM_CLASS (klass);
transform_class->stop = gst_lv2_filter_stop;
transform_class->transform = gst_lv2_filter_transform;
transform_class->transform_ip = gst_lv2_filter_transform_ip;
klass->plugin = lv2plugin;
/* properties have an offset of 1 */
ix = 1;
/* register properties */
for (i = 0; i < klass->control_in_ports->len; i++, ix++) {
p = gst_lv2_filter_class_get_param_spec (klass,
g_array_index (klass->control_in_ports, GstLV2FilterPort, i).index);
g_object_class_install_property (gobject_class, ix, p);
}
for (i = 0; i < klass->control_out_ports->len; i++, ix++) {
p = gst_lv2_filter_class_get_param_spec (klass,
g_array_index (klass->control_out_ports, GstLV2FilterPort, i).index);
g_object_class_install_property (gobject_class, ix, p);
}
}
static void
gst_chromaprint_class_init (GstChromaprintClass * klass)
{
GObjectClass *gobject_class;
GstBaseTransformClass *gstbasetrans_class;
GstCaps *caps;
gobject_class = G_OBJECT_CLASS (klass);
gstbasetrans_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_chromaprint_set_property;
gobject_class->get_property = gst_chromaprint_get_property;
/* FIXME: do we need this in addition to the tag message ? */
g_object_class_install_property (gobject_class, PROP_FINGERPRINT,
g_param_spec_string ("fingerprint", "Resulting fingerprint",
"Resulting fingerprint", NULL, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, PROP_MAX_DURATION,
g_param_spec_uint ("duration", "Duration limit",
"Number of seconds of audio to use for fingerprinting",
0, G_MAXUINT, DEFAULT_MAX_DURATION,
G_PARAM_READABLE | G_PARAM_WRITABLE));
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_chromaprint_finalize);
gstbasetrans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_chromaprint_transform_ip);
gstbasetrans_class->sink_event =
GST_DEBUG_FUNCPTR (gst_chromaprint_sink_event);
gstbasetrans_class->passthrough_on_same_caps = TRUE;
gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
"Chromaprint fingerprinting element",
"Filter/Analyzer/Audio",
"Find an audio fingerprint using the Chromaprint library",
"Lukáš Lalinský <*****@*****.**>");
caps = gst_caps_from_string (PAD_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
}
static void
gst_audio_invert_class_init (GstAudioInvertClass * klass)
{
GObjectClass *gobject_class;
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_audio_invert_set_property;
gobject_class->get_property = gst_audio_invert_get_property;
g_object_class_install_property (gobject_class, PROP_DEGREE,
g_param_spec_float ("degree", "Degree",
"Degree of inversion", 0.0, 1.0,
0.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
GST_AUDIO_FILTER_CLASS (klass)->setup =
GST_DEBUG_FUNCPTR (gst_audio_invert_setup);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip =
GST_DEBUG_FUNCPTR (gst_audio_invert_transform_ip);
}
static gboolean
gst_audio_filter_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstAudioFilterClass *klass;
GstAudioFilter *filter;
gboolean ret = TRUE;
filter = GST_AUDIO_FILTER (btrans);
GST_LOG_OBJECT (filter, "caps: %" GST_PTR_FORMAT, incaps);
if (!gst_ring_buffer_parse_caps (&filter->format, incaps)) {
GST_WARNING_OBJECT (filter, "couldn't parse %" GST_PTR_FORMAT, incaps);
return FALSE;
}
klass = GST_AUDIO_FILTER_CLASS (G_OBJECT_GET_CLASS (filter));
if (klass->setup)
ret = klass->setup (filter, &filter->format);
return ret;
}
static void
gst_spectrum_class_init (GstSpectrumClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstAudioFilterClass *filter_class = GST_AUDIO_FILTER_CLASS (klass);
gobject_class->set_property = gst_spectrum_set_property;
gobject_class->get_property = gst_spectrum_get_property;
gobject_class->finalize = gst_spectrum_finalize;
trans_class->start = GST_DEBUG_FUNCPTR (gst_spectrum_start);
trans_class->stop = GST_DEBUG_FUNCPTR (gst_spectrum_stop);
trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_spectrum_transform_ip);
trans_class->passthrough_on_same_caps = TRUE;
filter_class->setup = GST_DEBUG_FUNCPTR (gst_spectrum_setup);
/* FIXME 0.11, remove in favour of post-messages */
g_object_class_install_property (gobject_class, PROP_MESSAGE,
g_param_spec_boolean ("message", "Message",
"Whether to post a 'spectrum' element message on the bus for each "
"passed interval (deprecated, use post-messages)", DEFAULT_MESSAGE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstSpectrum:post-messages
*
* Post messages on the bus with spectrum information.
*
* Since: 0.10.17
*/
g_object_class_install_property (gobject_class, PROP_POST_MESSAGES,
g_param_spec_boolean ("post-messages", "Post Messages",
"Whether to post a 'spectrum' element message on the bus for each "
"passed interval", DEFAULT_POST_MESSAGES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_MESSAGE_MAGNITUDE,
g_param_spec_boolean ("message-magnitude", "Magnitude",
"Whether to add a 'magnitude' field to the structure of any "
"'spectrum' element messages posted on the bus",
DEFAULT_MESSAGE_MAGNITUDE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_MESSAGE_PHASE,
g_param_spec_boolean ("message-phase", "Phase",
"Whether to add a 'phase' field to the structure of any "
"'spectrum' element messages posted on the bus",
DEFAULT_MESSAGE_PHASE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_INTERVAL,
g_param_spec_uint64 ("interval", "Interval",
"Interval of time between message posts (in nanoseconds)",
1, G_MAXUINT64, DEFAULT_INTERVAL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
#ifdef GSTREAMER_LITE
g_object_class_install_property (gobject_class, PROP_BANDS,
g_param_spec_uint ("bands", "Bands", "Number of frequency bands",
0, MAX_BANDS, DEFAULT_BANDS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
#else
g_object_class_install_property (gobject_class, PROP_BANDS,
g_param_spec_uint ("bands", "Bands", "Number of frequency bands",
0, G_MAXUINT, DEFAULT_BANDS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
#endif // GSTREAMER_LITE
g_object_class_install_property (gobject_class, PROP_THRESHOLD,
g_param_spec_int ("threshold", "Threshold",
"dB threshold for result. All lower values will be set to this",
G_MININT, 0, DEFAULT_THRESHOLD,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstSpectrum:multi-channel
*
* Send separate results for each channel
*
* Since: 0.10.29
*/
g_object_class_install_property (gobject_class, PROP_MULTI_CHANNEL,
g_param_spec_boolean ("multi-channel", "Multichannel results",
"Send separate results for each channel",
DEFAULT_MULTI_CHANNEL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
GST_DEBUG_CATEGORY_INIT (gst_spectrum_debug, "spectrum", 0,
"audio spectrum analyser element");
}
