diff options
Diffstat (limited to 'gst-libs/gst/audio/gstaudiofilter.c')
-rw-r--r-- | gst-libs/gst/audio/gstaudiofilter.c | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/gst-libs/gst/audio/gstaudiofilter.c b/gst-libs/gst/audio/gstaudiofilter.c deleted file mode 100644 index 70ae6bf9..00000000 --- a/gst-libs/gst/audio/gstaudiofilter.c +++ /dev/null @@ -1,313 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> - * Copyright (C) <2003> David Schleef <ds@schleef.org> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -/*#define DEBUG_ENABLED */ -#include "gstaudiofilter.h" - -#include <string.h> - - -/* GstAudiofilter signals and args */ -enum -{ - /* FILL ME */ - LAST_SIGNAL -}; - -enum -{ - ARG_0, - ARG_METHOD - /* FILL ME */ -}; - -static void gst_audiofilter_base_init (gpointer g_class); -static void gst_audiofilter_class_init (gpointer g_class, gpointer class_data); -static void gst_audiofilter_init (GTypeInstance * instance, gpointer g_class); - -static void gst_audiofilter_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec); -static void gst_audiofilter_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec); - -static void gst_audiofilter_chain (GstPad * pad, GstData * _data); -GstCaps *gst_audiofilter_class_get_capslist (GstAudiofilterClass * klass); - -static GstElementClass *parent_class = NULL; - -GType -gst_audiofilter_get_type (void) -{ - static GType audiofilter_type = 0; - - if (!audiofilter_type) { - static const GTypeInfo audiofilter_info = { - sizeof (GstAudiofilterClass), - gst_audiofilter_base_init, - NULL, - gst_audiofilter_class_init, - NULL, - NULL, - sizeof (GstAudiofilter), - 0, - gst_audiofilter_init, - }; - - audiofilter_type = g_type_register_static (GST_TYPE_ELEMENT, - "GstAudiofilter", &audiofilter_info, G_TYPE_FLAG_ABSTRACT); - } - return audiofilter_type; -} - -static void -gst_audiofilter_base_init (gpointer g_class) -{ - static GstElementDetails audiofilter_details = { - "Audio filter base class", - "Filter/Effect/Audio", - "Filters audio", - "David Schleef <ds@schleef.org>" - }; - GstAudiofilterClass *klass = (GstAudiofilterClass *) g_class; - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - gst_element_class_set_details (element_class, &audiofilter_details); -} - -static void -gst_audiofilter_class_init (gpointer g_class, gpointer class_data) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - GstAudiofilterClass *klass; - - klass = (GstAudiofilterClass *) g_class; - gobject_class = (GObjectClass *) klass; - gstelement_class = (GstElementClass *) klass; - - parent_class = g_type_class_ref (GST_TYPE_ELEMENT); - - gobject_class->set_property = gst_audiofilter_set_property; - gobject_class->get_property = gst_audiofilter_get_property; -} - -static GstPadLinkReturn -gst_audiofilter_link (GstPad * pad, const GstCaps * caps) -{ - GstAudiofilter *audiofilter; - GstPadLinkReturn ret; - GstPadLinkReturn link_ret; - GstStructure *structure; - GstAudiofilterClass *audiofilter_class; - - GST_DEBUG ("gst_audiofilter_link"); - audiofilter = GST_AUDIOFILTER (gst_pad_get_parent (pad)); - audiofilter_class = GST_AUDIOFILTER_CLASS (G_OBJECT_GET_CLASS (audiofilter)); - - ret = GST_PAD_LINK_DELAYED; /* intialise with dummy value */ - if (pad == audiofilter->srcpad) { - link_ret = gst_pad_try_set_caps (audiofilter->sinkpad, caps); - } else { - link_ret = gst_pad_try_set_caps (audiofilter->srcpad, caps); - } - - if (GST_PAD_LINK_FAILED (link_ret)) { - return link_ret; - } - - structure = gst_caps_get_structure (caps, 0); - - if (strcmp (gst_structure_get_name (structure), "audio/x-raw-int") == 0) { - ret = gst_structure_get_int (structure, "depth", &audiofilter->depth); - ret &= gst_structure_get_int (structure, "width", &audiofilter->width); - } else if (strcmp (gst_structure_get_name (structure), "audio/x-raw-float") - == 0) { - ret &= gst_structure_get_int (structure, "width", &audiofilter->width); - } else { - g_assert_not_reached (); - } - ret &= gst_structure_get_int (structure, "rate", &audiofilter->rate); - ret &= gst_structure_get_int (structure, "channels", &audiofilter->channels); - - if (!ret) - return GST_PAD_LINK_REFUSED; - - audiofilter->bytes_per_sample = (audiofilter->width / 8) * - audiofilter->channels; - - if (audiofilter_class->setup) - (audiofilter_class->setup) (audiofilter); - - return GST_PAD_LINK_OK; -} - -static void -gst_audiofilter_init (GTypeInstance * instance, gpointer g_class) -{ - GstAudiofilter *audiofilter = GST_AUDIOFILTER (instance); - GstPadTemplate *pad_template; - - GST_DEBUG ("gst_audiofilter_init"); - - pad_template = - gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "sink"); - g_return_if_fail (pad_template != NULL); - audiofilter->sinkpad = gst_pad_new_from_template (pad_template, "sink"); - gst_element_add_pad (GST_ELEMENT (audiofilter), audiofilter->sinkpad); - gst_pad_set_chain_function (audiofilter->sinkpad, gst_audiofilter_chain); - gst_pad_set_link_function (audiofilter->sinkpad, gst_audiofilter_link); - gst_pad_set_getcaps_function (audiofilter->sinkpad, gst_pad_proxy_getcaps); - - pad_template = - gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "src"); - g_return_if_fail (pad_template != NULL); - audiofilter->srcpad = gst_pad_new_from_template (pad_template, "src"); - gst_element_add_pad (GST_ELEMENT (audiofilter), audiofilter->srcpad); - gst_pad_set_link_function (audiofilter->srcpad, gst_audiofilter_link); - gst_pad_set_getcaps_function (audiofilter->srcpad, gst_pad_proxy_getcaps); - - audiofilter->inited = FALSE; -} - -static void -gst_audiofilter_chain (GstPad * pad, GstData * data) -{ - GstBuffer *inbuf = GST_BUFFER (data); - GstAudiofilter *audiofilter; - GstBuffer *outbuf; - GstAudiofilterClass *audiofilter_class; - - GST_DEBUG ("gst_audiofilter_chain"); - - g_return_if_fail (pad != NULL); - g_return_if_fail (GST_IS_PAD (pad)); - g_return_if_fail (inbuf != NULL); - - audiofilter = GST_AUDIOFILTER (gst_pad_get_parent (pad)); - //g_return_if_fail (audiofilter->inited); - audiofilter_class = GST_AUDIOFILTER_CLASS (G_OBJECT_GET_CLASS (audiofilter)); - - GST_DEBUG ("gst_audiofilter_chain: got buffer of %d bytes in '%s'", - GST_BUFFER_SIZE (inbuf), GST_OBJECT_NAME (audiofilter)); - - if (audiofilter->passthru) { - gst_pad_push (audiofilter->srcpad, data); - return; - } - - audiofilter->size = GST_BUFFER_SIZE (inbuf); - audiofilter->n_samples = audiofilter->size / audiofilter->bytes_per_sample; - - if (gst_data_is_writable (data)) { - if (audiofilter_class->filter_inplace) { - (audiofilter_class->filter_inplace) (audiofilter, inbuf); - outbuf = inbuf; - } else { - outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (inbuf)); - GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (inbuf); - GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (inbuf); - - (audiofilter_class->filter) (audiofilter, outbuf, inbuf); - gst_buffer_unref (inbuf); - } - } else { - outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (inbuf)); - GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (inbuf); - GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (inbuf); - if (audiofilter_class->filter) { - (audiofilter_class->filter) (audiofilter, outbuf, inbuf); - } else { - memcpy (GST_BUFFER_DATA (outbuf), GST_BUFFER_DATA (inbuf), - GST_BUFFER_SIZE (inbuf)); - - (audiofilter_class->filter_inplace) (audiofilter, outbuf); - } - gst_buffer_unref (inbuf); - } - - gst_pad_push (audiofilter->srcpad, GST_DATA (outbuf)); -} - -static void -gst_audiofilter_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstAudiofilter *src; - - /* it's not null if we got it, but it might not be ours */ - g_return_if_fail (GST_IS_AUDIOFILTER (object)); - src = GST_AUDIOFILTER (object); - - GST_DEBUG ("gst_audiofilter_set_property"); - switch (prop_id) { - default: - break; - } -} - -static void -gst_audiofilter_get_property (GObject * object, guint prop_id, GValue * value, - GParamSpec * pspec) -{ - GstAudiofilter *src; - - /* it's not null if we got it, but it might not be ours */ - g_return_if_fail (GST_IS_AUDIOFILTER (object)); - src = GST_AUDIOFILTER (object); - - switch (prop_id) { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -void -gst_audiofilter_class_add_pad_templates (GstAudiofilterClass * - audiofilter_class, const GstCaps * caps) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (audiofilter_class); - - audiofilter_class->caps = gst_caps_copy (caps); - - gst_element_class_add_pad_template (element_class, - gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, - gst_caps_copy (caps))); - - gst_element_class_add_pad_template (element_class, - gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, - gst_caps_copy (caps))); -} - -static gboolean -plugin_init (GstPlugin * plugin) -{ - return TRUE; -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "gstaudiofilter", - "Audio filter parent class", - plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN) |