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gst/volume/Makefile.am: gst/volume/demo.c gst/volume/gstvolume.h
Original commit message from CVS: 2005-05-09 Andy Wingo <wingo@pobox.com> * gst/volume/Makefile.am: * gst/volume/demo.c * gst/volume/gstvolume.h * gst/volume/gstvolume.c: Port to 0.9 API, derive from basetransform. Probably need an audio filter base class.
This commit is contained in:
Andy Wingo
parent
8aeaf8ed14
commit
a214f5bf7b
6 changed files with 130 additions and 224 deletions
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@ -1,3 +1,11 @@
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2005-05-09 Andy Wingo <wingo@pobox.com>
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* gst/volume/Makefile.am:
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* gst/volume/demo.c
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* gst/volume/gstvolume.h
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* gst/volume/gstvolume.c: Port to 0.9 API, derive from
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basetransform. Probably need an audio filter base class.
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2005-05-09 Wim Taymans <wim@fluendo.com>
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* ext/vorbis/vorbisenc.c: (gst_vorbisenc_sink_setcaps),
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@ -377,6 +377,7 @@ GST_PLUGINS_ALL="\
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subparse \
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typefind \
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videotestsrc \
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volume \
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"
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dnl see if we can build C++ plug-ins
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@ -873,6 +874,7 @@ gst/sine/Makefile
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gst/subparse/Makefile
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gst/typefind/Makefile
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gst/videotestsrc/Makefile
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gst/volume/Makefile
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sys/Makefile
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sys/ximage/Makefile
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sys/xvimage/Makefile
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@ -4,7 +4,8 @@ plugin_LTLIBRARIES = libgstvolume.la
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libgstvolume_la_SOURCES = gstvolume.c
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libgstvolume_la_CFLAGS = $(GST_CFLAGS)
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libgstvolume_la_LIBADD = $(GST_LIBS) $(GST_CONTROL_LIBS) \
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$(top_builddir)/gst-libs/gst/libgstinterfaces-$(GST_MAJORMINOR).la
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$(top_builddir)/gst-libs/gst/libgstinterfaces-$(GST_MAJORMINOR).la \
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$(GST_BASE_LIBS)
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libgstvolume_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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noinst_HEADERS = gstvolume.h filter.func
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@ -49,18 +49,6 @@ value_changed_callback (GtkWidget * widget, GstElement * volume)
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g_object_set (volume, "volume", level, NULL);
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}
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static gboolean
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idler (gpointer data)
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{
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GstElement *pipeline = GST_ELEMENT (data);
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g_print ("+");
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if (gst_bin_iterate (GST_BIN (pipeline)))
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return TRUE;
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gtk_main_quit ();
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return FALSE;
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}
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static void
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setup_gui (GstElement * volume)
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{
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@ -128,9 +116,9 @@ main (int argc, char *argv[])
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/* go to main loop */
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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g_idle_add (idler, pipeline);
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gtk_main ();
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gst_bus_poll (gst_element_get_bus (pipeline),
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GST_MESSAGE_EOS | GST_MESSAGE_ERROR, -1);
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gst_element_set_state (pipeline, GST_STATE_NULL);
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return 0;
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}
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@ -23,6 +23,7 @@
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/audio/audio.h>
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#include <gst/control/control.h>
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#include <gst/mixer/mixer.h>
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@ -46,7 +47,7 @@ static GstElementDetails volume_details = {
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"Volume",
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"Filter/Effect/Audio",
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"Set volume on audio/raw streams",
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"Andy Wingo <apwingo@eos.ncsu.edu>",
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"Andy Wingo <wingo@pobox.com>",
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};
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@ -59,10 +60,10 @@ enum
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enum
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{
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ARG_0,
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ARG_SILENT,
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ARG_MUTE,
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ARG_VOLUME
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PROP_0,
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PROP_SILENT,
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PROP_MUTE,
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PROP_VOLUME
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};
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static GstStaticPadTemplate volume_sink_factory =
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@ -98,9 +99,30 @@ static GstStaticPadTemplate volume_src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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"width = (int) 16, " "depth = (int) 16, " "signed = (bool) TRUE")
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);
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static void volume_base_init (gpointer g_class);
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static void volume_class_init (GstVolumeClass * klass);
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static void volume_init (GstVolume * filter);
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static void gst_volume_interface_init (GstImplementsInterfaceClass * klass);
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static void gst_volume_mixer_init (GstMixerClass * iface);
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#define _init_interfaces(type) \
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{ \
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static const GInterfaceInfo voliface_info = { \
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(GInterfaceInitFunc) gst_volume_interface_init, \
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NULL, \
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NULL \
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}; \
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static const GInterfaceInfo volmixer_info = { \
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(GInterfaceInitFunc) gst_volume_mixer_init, \
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NULL, \
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NULL \
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}; \
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\
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g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE, \
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&voliface_info); \
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g_type_add_interface_static (type, GST_TYPE_MIXER, &volmixer_info); \
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}
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GST_BOILERPLATE_FULL (GstVolume, gst_volume, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, _init_interfaces);
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static void volume_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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@ -109,18 +131,12 @@ static void volume_get_property (GObject * object, guint prop_id,
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static void volume_update_volume (const GValue * value, gpointer data);
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static void volume_update_mute (const GValue * value, gpointer data);
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static gboolean volume_parse_caps (GstVolume * filter,
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GstStructure * structure);
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static void volume_chain_float (GstPad * pad, GstData * _data);
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static void volume_chain_int16 (GstPad * pad, GstData * _data);
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static void gst_volume_interface_init (GstImplementsInterfaceClass * klass);
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static void gst_volume_mixer_init (GstMixerClass * iface);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_filter_signals[LAST_SIGNAL] = { 0 }; */
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static GstFlowReturn volume_transform (GstBaseTransform * base,
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GstBuffer * inbuf, GstBuffer ** outbuf);
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static void volume_process_float (GstVolume * filter, GstClockTime tstamp,
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gpointer bytes, gint n_bytes);
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static void volume_process_int16 (GstVolume * filter, GstClockTime tstamp,
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gpointer bytes, gint n_bytes);
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static gboolean
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gst_volume_interface_supported (GstImplementsInterface * iface, GType type)
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@ -233,97 +249,8 @@ gst_volume_dispose (GObject * object)
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static GstPadLinkReturn
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volume_connect (GstPad * pad, const GstCaps * caps)
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{
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GstVolume *filter;
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GstPad *otherpad;
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gint rate;
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GstPadLinkReturn link_ret;
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GstStructure *structure;
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filter = GST_VOLUME (gst_pad_get_parent (pad));
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g_return_val_if_fail (GST_IS_VOLUME (filter), GST_PAD_LINK_REFUSED);
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otherpad = (pad == filter->srcpad ? filter->sinkpad : filter->srcpad);
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structure = gst_caps_get_structure (caps, 0);
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gst_structure_get_int (structure, "rate", &rate);
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link_ret = gst_pad_try_set_caps (otherpad, caps);
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if (GST_PAD_LINK_FAILED (link_ret)) {
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return link_ret;
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}
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if (!volume_parse_caps (filter, structure))
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return GST_PAD_LINK_REFUSED;
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gst_dpman_set_rate (filter->dpman, rate);
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return GST_PAD_LINK_OK;
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}
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static gboolean
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volume_parse_caps (GstVolume * filter, GstStructure * structure)
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{
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const gchar *mimetype;
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g_return_val_if_fail (filter != NULL, FALSE);
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g_return_val_if_fail (structure != NULL, FALSE);
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mimetype = gst_structure_get_name (structure);
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if (strcmp (mimetype, "audio/x-raw-int") == 0) {
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gst_pad_set_chain_function (filter->sinkpad, volume_chain_int16);
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return TRUE;
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}
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if (strcmp (mimetype, "audio/x-raw-float") == 0) {
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gst_pad_set_chain_function (filter->sinkpad, volume_chain_float);
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return TRUE;
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}
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return FALSE;
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}
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GType
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gst_volume_get_type (void)
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{
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static GType volume_type = 0;
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if (!volume_type) {
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static const GTypeInfo volume_info = {
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sizeof (GstVolumeClass),
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volume_base_init,
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NULL,
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(GClassInitFunc) volume_class_init,
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NULL,
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NULL,
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sizeof (GstVolume),
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0,
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(GInstanceInitFunc) volume_init
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};
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static const GInterfaceInfo voliface_info = {
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(GInterfaceInitFunc) gst_volume_interface_init,
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NULL,
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NULL
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};
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static const GInterfaceInfo volmixer_info = {
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(GInterfaceInitFunc) gst_volume_mixer_init,
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NULL,
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NULL
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};
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volume_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstVolume", &volume_info, 0);
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g_type_add_interface_static (volume_type, GST_TYPE_IMPLEMENTS_INTERFACE,
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&voliface_info);
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g_type_add_interface_static (volume_type, GST_TYPE_MIXER, &volmixer_info);
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}
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return volume_type;
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}
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static void
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volume_base_init (gpointer g_class)
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gst_volume_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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@ -333,51 +260,32 @@ volume_base_init (gpointer g_class)
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gst_static_pad_template_get (&volume_sink_factory));
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gst_element_class_set_details (element_class, &volume_details);
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}
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static void
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volume_class_init (GstVolumeClass * klass)
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gst_volume_class_init (GstVolumeClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MUTE,
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g_param_spec_boolean ("mute", "mute", "mute", FALSE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VOLUME,
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g_param_spec_double ("volume", "volume", "volume",
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0.0, VOLUME_MAX_DOUBLE, 1.0, G_PARAM_READWRITE));
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gobject_class->set_property = volume_set_property;
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gobject_class->get_property = volume_get_property;
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gobject_class->dispose = gst_volume_dispose;
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MUTE,
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g_param_spec_boolean ("mute", "mute", "mute", FALSE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_VOLUME,
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g_param_spec_double ("volume", "volume", "volume",
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0.0, VOLUME_MAX_DOUBLE, 1.0, G_PARAM_READWRITE));
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GST_BASE_TRANSFORM_CLASS (klass)->transform = volume_transform;
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}
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static void
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volume_init (GstVolume * filter)
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gst_volume_init (GstVolume * filter)
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{
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GstMixerTrack *track = NULL;
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filter->sinkpad =
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gst_pad_new_from_template (gst_static_pad_template_get
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(&volume_sink_factory), "sink");
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gst_pad_set_getcaps_function (filter->sinkpad, gst_pad_proxy_getcaps);
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gst_pad_set_link_function (filter->sinkpad, volume_connect);
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filter->srcpad =
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gst_pad_new_from_template (gst_static_pad_template_get
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(&volume_src_factory), "src");
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gst_pad_set_getcaps_function (filter->srcpad, gst_pad_proxy_getcaps);
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gst_pad_set_link_function (filter->srcpad, volume_connect);
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gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
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gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
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gst_pad_set_chain_function (filter->sinkpad, volume_chain_int16);
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filter->mute = FALSE;
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filter->volume_i = VOLUME_UNITY_INT;
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filter->volume_f = 1.0;
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@ -407,65 +315,77 @@ volume_init (GstVolume * filter)
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}
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static void
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volume_chain_float (GstPad * pad, GstData * _data)
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volume_typefind (GstVolume * filter, const GstStructure * structure)
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{
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GstBuffer *buf = GST_BUFFER (_data);
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GstVolume *filter;
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GstBuffer *out_buf;
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gfloat *data;
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gint i, num_samples;
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const gchar *mimetype;
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g_return_if_fail (GST_IS_PAD (pad));
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g_return_if_fail (buf != NULL);
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mimetype = gst_structure_get_name (structure);
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filter = GST_VOLUME (GST_OBJECT_PARENT (pad));
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g_return_if_fail (GST_IS_VOLUME (filter));
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if (strcmp (mimetype, "audio/x-raw-int") == 0)
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filter->process = volume_process_int16;
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else if (strcmp (mimetype, "audio/x-raw-float") == 0)
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filter->process = volume_process_float;
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}
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GST_LOG_OBJECT (filter, "processing incoming float buffer with refcount %d",
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GST_BUFFER_REFCOUNT_VALUE (buf));
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out_buf = gst_buffer_copy_on_write (buf);
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static GstFlowReturn
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volume_transform (GstBaseTransform * base, GstBuffer * inbuf,
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GstBuffer ** outbuf)
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{
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GstVolume *filter = GST_VOLUME (base);
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data = (gfloat *) GST_BUFFER_DATA (out_buf);
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num_samples = GST_BUFFER_SIZE (out_buf) / sizeof (gfloat);
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GST_DPMAN_PREPROCESS (filter->dpman, num_samples,
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GST_BUFFER_TIMESTAMP (out_buf));
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i = 0;
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if (G_UNLIKELY (!filter->process)) {
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GstCaps *caps = GST_BUFFER_CAPS (inbuf);
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while (GST_DPMAN_PROCESS (filter->dpman, i)) {
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data[i++] *= filter->real_vol_f;
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if (gst_caps_get_size (caps) == 1)
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volume_typefind (filter, gst_caps_get_structure (caps, 0));
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if (!filter->process) {
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GST_ELEMENT_ERROR (filter, CORE, NEGOTIATION,
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("Invalid caps on first buffer"), NULL);
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return GST_FLOW_UNEXPECTED;
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}
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}
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gst_pad_push (filter->srcpad, GST_DATA (out_buf));
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*outbuf = gst_buffer_copy_on_write (gst_buffer_ref (inbuf));
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filter->process (filter, GST_BUFFER_TIMESTAMP (*outbuf),
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GST_BUFFER_DATA (*outbuf), GST_BUFFER_SIZE (*outbuf));
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return GST_FLOW_OK;
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}
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static void
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volume_chain_int16 (GstPad * pad, GstData * _data)
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volume_process_float (GstVolume * filter, GstClockTime tstamp,
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gpointer bytes, gint n_bytes)
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{
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gfloat *data;
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gint i, num_samples;
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data = (gfloat *) bytes;
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num_samples = n_bytes / sizeof (gfloat);
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GST_DPMAN_PREPROCESS (filter->dpman, num_samples, tstamp);
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i = 0;
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while (GST_DPMAN_PROCESS (filter->dpman, i)) {
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data[i++] *= filter->real_vol_f;
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}
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}
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static void
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volume_process_int16 (GstVolume * filter, GstClockTime tstamp,
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gpointer bytes, gint n_bytes)
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{
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GstBuffer *buf = GST_BUFFER (_data);
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GstVolume *filter;
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GstBuffer *out_buf;
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gint16 *data;
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gint i, num_samples;
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g_return_if_fail (_data);
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g_return_if_fail (GST_IS_PAD (pad));
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g_return_if_fail (buf != NULL);
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data = (gint16 *) bytes;
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num_samples = n_bytes / sizeof (gint16);
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filter = GST_VOLUME (GST_OBJECT_PARENT (pad));
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g_return_if_fail (GST_IS_VOLUME (filter));
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GST_LOG_OBJECT (filter, "processing incoming int16 buffer with refcount %d",
|
||||
GST_BUFFER_REFCOUNT_VALUE (buf));
|
||||
out_buf = gst_buffer_copy_on_write (buf);
|
||||
|
||||
data = (gint16 *) GST_BUFFER_DATA (out_buf);
|
||||
g_assert (data);
|
||||
num_samples = GST_BUFFER_SIZE (out_buf) / sizeof (gint16);
|
||||
GST_DPMAN_PREPROCESS (filter->dpman, num_samples,
|
||||
GST_BUFFER_TIMESTAMP (out_buf));
|
||||
GST_DPMAN_PREPROCESS (filter->dpman, num_samples, tstamp);
|
||||
i = 0;
|
||||
|
||||
/* need... liboil... */
|
||||
while (GST_DPMAN_PROCESS (filter->dpman, i)) {
|
||||
/* only clamp if the gain is greater than 1.0 */
|
||||
if (filter->real_vol_i > VOLUME_UNITY_INT) {
|
||||
|
|
@ -487,8 +407,6 @@ volume_chain_int16 (GstPad * pad, GstData * _data)
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
gst_pad_push (filter->srcpad, GST_DATA (out_buf));
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -535,18 +453,14 @@ static void
|
|||
volume_set_property (GObject * object, guint prop_id, const GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstVolume *filter;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_VOLUME (object));
|
||||
filter = GST_VOLUME (object);
|
||||
GstVolume *filter = GST_VOLUME (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_MUTE:
|
||||
case PROP_MUTE:
|
||||
gst_dpman_bypass_dparam (filter->dpman, "mute");
|
||||
volume_update_mute (value, filter);
|
||||
break;
|
||||
case ARG_VOLUME:
|
||||
case PROP_VOLUME:
|
||||
gst_dpman_bypass_dparam (filter->dpman, "volume");
|
||||
volume_update_volume (value, filter);
|
||||
break;
|
||||
|
|
@ -560,17 +474,13 @@ static void
|
|||
volume_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstVolume *filter;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_VOLUME (object));
|
||||
filter = GST_VOLUME (object);
|
||||
GstVolume *filter = GST_VOLUME (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_MUTE:
|
||||
case PROP_MUTE:
|
||||
g_value_set_boolean (value, filter->mute);
|
||||
break;
|
||||
case ARG_VOLUME:
|
||||
case PROP_VOLUME:
|
||||
g_value_set_double (value, filter->volume_f);
|
||||
break;
|
||||
default:
|
||||
|
|
|
|||
|
|
@ -24,12 +24,9 @@
|
|||
|
||||
|
||||
#include <gst/gst.h>
|
||||
/* #include <gst/meta/audioraw.h> */
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
G_BEGIN_DECLS
|
||||
|
||||
|
||||
#define GST_TYPE_VOLUME \
|
||||
|
|
@ -37,7 +34,7 @@ extern "C" {
|
|||
#define GST_VOLUME(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VOLUME,GstVolume))
|
||||
#define GST_VOLUME_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstVolume))
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VOLUME,GstVolume))
|
||||
#define GST_IS_VOLUME(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VOLUME))
|
||||
#define GST_IS_VOLUME_CLASS(obj) \
|
||||
|
|
@ -53,9 +50,10 @@ enum _GstVolumeFormat {
|
|||
};
|
||||
|
||||
struct _GstVolume {
|
||||
GstElement element;
|
||||
GstBaseTransform element;
|
||||
|
||||
void (*process)(GstVolume*, GstClockTime, gpointer, gint);
|
||||
|
||||
GstPad *sinkpad, *srcpad;
|
||||
GstDParamManager *dpman;
|
||||
|
||||
gboolean mute;
|
||||
|
|
@ -66,14 +64,13 @@ struct _GstVolume {
|
|||
};
|
||||
|
||||
struct _GstVolumeClass {
|
||||
GstElementClass parent_class;
|
||||
GstBaseTransformClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_volume_get_type(void);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
|
||||
#endif /* __GST_VOLUME_H__ */
|
||||
|
|
|
|||
Loading…
Reference in a new issue