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gst-libs/gst/audio/Makefile.am: Add gstaudiofiltertemplate.c and building of gstaudiofilterexample.c from the template.
Original commit message from CVS: * gst-libs/gst/audio/Makefile.am: Add gstaudiofiltertemplate.c and building of gstaudiofilterexample.c from the template. * gst-libs/gst/audio/gstaudiofilter.c: * gst-libs/gst/audio/gstaudiofilter.h: Add bytes_per_sample and size and n_samples calculation. * gst-libs/gst/audio/gstaudiofilterexample.c: Remove, now autogenerated. * gst-libs/gst/audio/gstaudiofiltertemplate.c: Moved from gstaudiofilterexample, object name changed, code added so that it actually works. * gst-libs/gst/audio/make_filter: Script to build an audiofilter subclass from the template. * gst/colorspace/Makefile.am: * gst/colorspace/yuv2yuv.c: Remove file, since it's GPL, and we don't use it.
This commit is contained in:
David Schleef
parent
65a306f052
commit
5dca8edfe9
7 changed files with 334 additions and 171 deletions
19
ChangeLog
19
ChangeLog
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@ -1,3 +1,22 @@
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2004-01-15 David Schleef <ds@schleef.org>
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* gst-libs/gst/audio/Makefile.am:
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Add gstaudiofiltertemplate.c and building of gstaudiofilterexample.c
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from the template.
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* gst-libs/gst/audio/gstaudiofilter.c:
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* gst-libs/gst/audio/gstaudiofilter.h:
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Add bytes_per_sample and size and n_samples calculation.
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* gst-libs/gst/audio/gstaudiofilterexample.c:
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Remove, now autogenerated.
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* gst-libs/gst/audio/gstaudiofiltertemplate.c:
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Moved from gstaudiofilterexample, object name changed, code added
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so that it actually works.
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* gst-libs/gst/audio/make_filter:
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Script to build an audiofilter subclass from the template.
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* gst/colorspace/Makefile.am:
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* gst/colorspace/yuv2yuv.c:
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Remove file, since it's GPL, and we don't use it.
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2004-01-15 Julien MOUTTE <julien@moutte.net>
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* sys/ximage/ximagesink.c: (gst_ximagesink_chain):
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@ -2,6 +2,9 @@ librarydir = $(libdir)/gstreamer-@GST_MAJORMINOR@
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library_LTLIBRARIES = libgstaudio.la libgstaudiofilter.la libgstaudiofilterexample.la
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EXTRA_DIST = gstaudiofiltertemplate.c make_filter
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CLEANFILES = gstaudiofilterexample.c
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libgstaudio_la_SOURCES = audio.c audioclock.c
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libgstaudioincludedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/audio
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@ -19,3 +22,5 @@ libgstaudiofilterexample_la_SOURCES = gstaudiofilterexample.c
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libgstaudiofilterexample_la_CFLAGS = $(GST_CFLAGS)
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libgstaudiofilterexample_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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gstaudiofilterexample.c: $(srcdir)/make_filter $(srcdir)/gstaudiofiltertemplate.c
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$(srcdir)/make_filter AudiofilterExample $(srcdir)/gstaudiofiltertemplate.c
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@ -144,6 +144,9 @@ gst_audiofilter_link (GstPad *pad, const GstCaps *caps)
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}
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ret &= gst_structure_get_int (structure, "rate", &audiofilter->rate);
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audiofilter->bytes_per_sample = (audiofilter->width/8) *
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audiofilter->channels;
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if (audiofilter_class->setup) (audiofilter_class->setup) (audiofilter);
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return GST_PAD_LINK_OK;
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@ -204,6 +207,9 @@ gst_audiofilter_chain (GstPad *pad, GstData *data)
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return;
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}
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audiofilter->size = GST_BUFFER_SIZE (inbuf);
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audiofilter->n_samples = audiofilter->size / audiofilter->bytes_per_sample;
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if (gst_data_is_writable(data)) {
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if (audiofilter_class->filter_inplace) {
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(audiofilter_class->filter_inplace) (audiofilter, inbuf);
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@ -56,13 +56,16 @@ struct _GstAudiofilter {
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/* audio state */
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gboolean inited;
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gboolean passthru;
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int rate;
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int width;
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int channels;
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int depth;
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gboolean passthru;
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int n_samples;
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int size;
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int bytes_per_sample;
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};
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struct _GstAudiofilterClass {
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@ -1,170 +0,0 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/audio/gstaudiofilter.h>
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typedef struct _GstAudiofilterExample GstAudiofilterExample;
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typedef struct _GstAudiofilterExampleClass GstAudiofilterExampleClass;
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#define GST_TYPE_AUDIOFILTER_EXAMPLE \
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(gst_audiofilter_example_get_type())
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#define GST_AUDIOFILTER_EXAMPLE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIOFILTER_EXAMPLE,GstAudiofilterExample))
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#define GST_AUDIOFILTER_EXAMPLE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOFILTER_EXAMPLE,GstAudiofilterExampleClass))
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#define GST_IS_AUDIOFILTER_EXAMPLE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIOFILTER_EXAMPLE))
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#define GST_IS_AUDIOFILTER_EXAMPLE_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOFILTER_EXAMPLE))
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struct _GstAudiofilterExample {
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GstAudiofilter audiofilter;
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};
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struct _GstAudiofilterExampleClass {
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GstAudiofilterClass parent_class;
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};
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/* GstAudiofilterExample signals and args */
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enum {
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_METHOD,
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/* FILL ME */
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};
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static void gst_audiofilter_example_base_init (gpointer g_class);
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static void gst_audiofilter_example_class_init (gpointer g_class, gpointer class_data);
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static void gst_audiofilter_example_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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static void gst_audiofilter_example_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
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GType
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gst_audiofilter_example_get_type (void)
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{
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static GType audiofilter_example_type = 0;
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if (!audiofilter_example_type) {
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static const GTypeInfo audiofilter_example_info = {
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sizeof(GstAudiofilterExampleClass),
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gst_audiofilter_example_base_init,
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NULL,
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gst_audiofilter_example_class_init,
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NULL,
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NULL,
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sizeof(GstAudiofilterExample),
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0,
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NULL,
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};
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audiofilter_example_type = g_type_register_static(GST_TYPE_AUDIOFILTER,
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"GstAudiofilterExample", &audiofilter_example_info, 0);
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}
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return audiofilter_example_type;
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}
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static void gst_audiofilter_example_base_init (gpointer g_class)
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{
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static GstElementDetails audiofilter_example_details = {
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"Audio filter example",
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"Filter/Effect/Audio",
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"Filters audio",
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"David Schleef <ds@schleef.org>"
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};
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GstAudiofilterExampleClass *klass = (GstAudiofilterExampleClass *) g_class;
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_set_details (element_class, &audiofilter_example_details);
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}
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static void gst_audiofilter_example_class_init (gpointer g_class, gpointer class_data)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstAudiofilterExampleClass *klass;
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klass = (GstAudiofilterExampleClass *)g_class;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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gobject_class->set_property = gst_audiofilter_example_set_property;
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gobject_class->get_property = gst_audiofilter_example_get_property;
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}
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static void
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gst_audiofilter_example_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstAudiofilterExample *src;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_AUDIOFILTER_EXAMPLE(object));
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src = GST_AUDIOFILTER_EXAMPLE(object);
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GST_DEBUG("gst_audiofilter_example_set_property");
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switch (prop_id) {
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default:
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break;
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}
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}
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static void
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gst_audiofilter_example_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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{
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GstAudiofilterExample *src;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_AUDIOFILTER_EXAMPLE(object));
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src = GST_AUDIOFILTER_EXAMPLE(object);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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plugin_init (GstPlugin *plugin)
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{
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return TRUE;
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}
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GST_PLUGIN_DEFINE (
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GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"gstaudiofilter_example",
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"Audio filter example",
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plugin_init,
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VERSION,
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"LGPL",
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GST_PACKAGE,
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GST_ORIGIN
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)
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265
gst-libs/gst/audio/gstaudiofiltertemplate.c
Normal file
265
gst-libs/gst/audio/gstaudiofiltertemplate.c
Normal file
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@ -0,0 +1,265 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* This file was (probably) generated from
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* $Id$
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* and
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* MAKEFILTERVERSION
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#include <gst/audio/gstaudiofilter.h>
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#include <string.h>
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typedef struct _GstAudiofilterTemplate GstAudiofilterTemplate;
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typedef struct _GstAudiofilterTemplateClass GstAudiofilterTemplateClass;
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#define GST_TYPE_AUDIOFILTER_TEMPLATE \
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(gst_audiofilter_template_get_type())
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#define GST_AUDIOFILTER_TEMPLATE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIOFILTER_TEMPLATE,GstAudiofilterTemplate))
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#define GST_AUDIOFILTER_TEMPLATE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOFILTER_TEMPLATE,GstAudiofilterTemplateClass))
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#define GST_IS_AUDIOFILTER_TEMPLATE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIOFILTER_TEMPLATE))
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#define GST_IS_AUDIOFILTER_TEMPLATE_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOFILTER_TEMPLATE))
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struct _GstAudiofilterTemplate {
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GstAudiofilter audiofilter;
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};
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struct _GstAudiofilterTemplateClass {
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GstAudiofilterClass parent_class;
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};
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enum {
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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/* FILL ME */
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};
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static void gst_audiofilter_template_base_init (gpointer g_class);
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static void gst_audiofilter_template_class_init (gpointer g_class, gpointer class_data);
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static void gst_audiofilter_template_init (GTypeInstance *instance, gpointer g_class);
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static void gst_audiofilter_template_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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static void gst_audiofilter_template_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
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static void gst_audiofilter_template_setup (GstAudiofilter *audiofilter);
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static void gst_audiofilter_template_filter (GstAudiofilter *audiofilter, GstBuffer *outbuf, GstBuffer *inbuf);
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static void gst_audiofilter_template_filter_inplace (GstAudiofilter *audiofilter, GstBuffer *buf);
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GType
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gst_audiofilter_template_get_type (void)
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{
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static GType audiofilter_template_type = 0;
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if (!audiofilter_template_type) {
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static const GTypeInfo audiofilter_template_info = {
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sizeof(GstAudiofilterTemplateClass),
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gst_audiofilter_template_base_init,
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NULL,
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gst_audiofilter_template_class_init,
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NULL,
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gst_audiofilter_template_init,
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sizeof(GstAudiofilterTemplate),
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0,
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NULL,
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};
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audiofilter_template_type = g_type_register_static(GST_TYPE_AUDIOFILTER,
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"GstAudiofilterTemplate", &audiofilter_template_info, 0);
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}
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return audiofilter_template_type;
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}
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static void gst_audiofilter_template_base_init (gpointer g_class)
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{
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static GstElementDetails audiofilter_template_details = {
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"Audio filter template",
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"Filter/Effect/Audio",
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"Filters audio",
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"David Schleef <ds@schleef.org>"
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};
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GstAudiofilterTemplateClass *klass = (GstAudiofilterTemplateClass *) g_class;
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_set_details (element_class, &audiofilter_template_details);
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gst_audiofilter_class_add_pad_templates (GST_AUDIOFILTER_CLASS (g_class),
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gst_caps_from_string (GST_AUDIO_INT_STANDARD_PAD_TEMPLATE_CAPS));
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}
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static void
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gst_audiofilter_template_class_init (gpointer g_class, gpointer class_data)
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{
|
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GObjectClass *gobject_class;
|
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GstElementClass *gstelement_class;
|
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GstAudiofilterTemplateClass *klass;
|
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GstAudiofilterClass *audiofilter_class;
|
||||
|
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klass = (GstAudiofilterTemplateClass *)g_class;
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gobject_class = (GObjectClass*)klass;
|
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gstelement_class = (GstElementClass*)klass;
|
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audiofilter_class = (GstAudiofilterClass *)g_class;
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#if 0
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g_object_class_install_property(gobject_class, ARG_METHOD,
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g_param_spec_enum("method","method","method",
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GST_TYPE_AUDIOTEMPLATE_METHOD, GST_AUDIOTEMPLATE_METHOD_1,
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G_PARAM_READWRITE));
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#endif
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|
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gobject_class->set_property = gst_audiofilter_template_set_property;
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gobject_class->get_property = gst_audiofilter_template_get_property;
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audiofilter_class->setup = gst_audiofilter_template_setup;
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audiofilter_class->filter = gst_audiofilter_template_filter;
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audiofilter_class->filter_inplace = gst_audiofilter_template_filter_inplace;
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audiofilter_class->filter = NULL;
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}
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|
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static void
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gst_audiofilter_template_init (GTypeInstance *instance, gpointer g_class)
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{
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//GstAudiofilterTemplate *audiofilter_template = GST_AUDIOFILTER_TEMPLATE (instance);
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//GstAudiofilter *audiofilter = GST_AUDIOFILTER (instance);
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GST_DEBUG ("gst_audiofilter_template_init");
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/* do stuff */
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||||
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}
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static void
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gst_audiofilter_template_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
|
||||
{
|
||||
GstAudiofilterTemplate *src;
|
||||
|
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/* it's not null if we got it, but it might not be ours */
|
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g_return_if_fail(GST_IS_AUDIOFILTER_TEMPLATE(object));
|
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src = GST_AUDIOFILTER_TEMPLATE(object);
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|
||||
GST_DEBUG("gst_audiofilter_template_set_property");
|
||||
switch (prop_id) {
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audiofilter_template_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
|
||||
{
|
||||
GstAudiofilterTemplate *src;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail(GST_IS_AUDIOFILTER_TEMPLATE(object));
|
||||
src = GST_AUDIOFILTER_TEMPLATE(object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static gboolean
|
||||
plugin_init (GstPlugin *plugin)
|
||||
{
|
||||
if (!gst_library_load ("gstaudiofilter"))
|
||||
return FALSE;
|
||||
|
||||
return gst_element_register (plugin, "audiofiltertemplate", GST_RANK_NONE,
|
||||
GST_TYPE_AUDIOFILTER_TEMPLATE);
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (
|
||||
GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"gstaudiofilter_template",
|
||||
"Audio filter template",
|
||||
plugin_init,
|
||||
VERSION,
|
||||
"LGPL",
|
||||
GST_PACKAGE,
|
||||
GST_ORIGIN
|
||||
)
|
||||
|
||||
static void
|
||||
gst_audiofilter_template_setup (GstAudiofilter *audiofilter)
|
||||
{
|
||||
GstAudiofilterTemplate *audiofilter_template;
|
||||
|
||||
g_return_if_fail (GST_IS_AUDIOFILTER_TEMPLATE (audiofilter));
|
||||
audiofilter_template = GST_AUDIOFILTER_TEMPLATE (audiofilter);
|
||||
|
||||
/* if any setup needs to be done, do it here */
|
||||
|
||||
}
|
||||
|
||||
/* You may choose to implement either a copying filter or an
|
||||
* in-place filter (or both). Implementing only one will give
|
||||
* full functionality, however, implementing both will cause
|
||||
* audiofilter to use the optimal function in every situation,
|
||||
* with a minimum of memory copies. */
|
||||
|
||||
static void
|
||||
gst_audiofilter_template_filter (GstAudiofilter *audiofilter,
|
||||
GstBuffer *outbuf, GstBuffer *inbuf)
|
||||
{
|
||||
GstAudiofilterTemplate *audiofilter_template;
|
||||
|
||||
g_return_if_fail (GST_IS_AUDIOFILTER_TEMPLATE (audiofilter));
|
||||
audiofilter_template = GST_AUDIOFILTER_TEMPLATE (audiofilter);
|
||||
|
||||
/* do something interesting here. This simply copies the source
|
||||
* to the destination. */
|
||||
|
||||
memcpy (GST_BUFFER_DATA (outbuf), GST_BUFFER_DATA (inbuf),
|
||||
audiofilter->size);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audiofilter_template_filter_inplace (GstAudiofilter *audiofilter,
|
||||
GstBuffer *buf)
|
||||
{
|
||||
GstAudiofilterTemplate *audiofilter_template;
|
||||
|
||||
g_return_if_fail (GST_IS_AUDIOFILTER_TEMPLATE (audiofilter));
|
||||
audiofilter_template = GST_AUDIOFILTER_TEMPLATE (audiofilter);
|
||||
|
||||
/* do something interesting here. This simply copies the source
|
||||
* to the destination. */
|
||||
|
||||
}
|
||||
|
||||
35
gst-libs/gst/audio/make_filter
Executable file
35
gst-libs/gst/audio/make_filter
Executable file
|
|
@ -0,0 +1,35 @@
|
|||
#!/bin/sh
|
||||
|
||||
Template=$1;
|
||||
srcfile=$2;
|
||||
|
||||
if test x"$1" = x ; then
|
||||
echo "$0 Objectname [srcfile]\n";
|
||||
echo " creates gstobjectname.{c,h} implementing GstObjectname,\n";
|
||||
echo " subclassing GstAudiofilter.\n";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if test x"$2" = x ; then
|
||||
srcfile="gstaudiofiltertemplate.c"
|
||||
fi
|
||||
|
||||
id=$(echo '$Id$' | sed \
|
||||
-e 's/\$I[d]: \([^$]*\)\$/\1/g' \
|
||||
)
|
||||
echo $id
|
||||
|
||||
TEMPLATE=$(echo $Template | tr a-z A-Z)
|
||||
template=$(echo $Template | tr A-Z a-z)
|
||||
|
||||
# remember to break up the Id: in the line below
|
||||
sed \
|
||||
-e 's/gstaudiofiltertemplate\.c/SOURCEFILE/g' \
|
||||
-e "s/AudiofilterTemplate/$Template/g" \
|
||||
-e "s/audiofiltertemplate/$template/g" \
|
||||
-e "s/VIDEOFILTERTEMPLATE/$TEMPLATE/g" \
|
||||
-e 's/\$I[d]: \([^$]*\)\$/\1/g' \
|
||||
-e 's/SOURCEFILE/gstaudiofiltertemplate\.c/g' \
|
||||
-e "s%MAKEFILTERVERSION%$id%g" \
|
||||
$srcfile >gst$template.c.tmp && mv gst$template.c.tmp gst$template.c
|
||||
|
||||
Loading…
Reference in a new issue