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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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freeverb: add a freeverb port
Freeverb is a public domain reverb implementation. Port it as a gstreamer element and make use of gstreamer specific features (gap aware, disconts, controller, ...).
This commit is contained in:
Stefan Sauer
parent
6bcf813ed0
commit
bf7c118c3c
4 changed files with 1073 additions and 0 deletions
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@ -315,6 +315,7 @@ AG_GST_CHECK_PLUGIN(faceoverlay)
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AG_GST_CHECK_PLUGIN(festival)
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AG_GST_CHECK_PLUGIN(festival)
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AG_GST_CHECK_PLUGIN(fieldanalysis)
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AG_GST_CHECK_PLUGIN(fieldanalysis)
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AG_GST_CHECK_PLUGIN(freeze)
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AG_GST_CHECK_PLUGIN(freeze)
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AG_GST_CHECK_PLUGIN(freeverb)
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AG_GST_CHECK_PLUGIN(frei0r)
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AG_GST_CHECK_PLUGIN(frei0r)
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AG_GST_CHECK_PLUGIN(gaudieffects)
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AG_GST_CHECK_PLUGIN(gaudieffects)
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AG_GST_CHECK_PLUGIN(geometrictransform)
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AG_GST_CHECK_PLUGIN(geometrictransform)
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@ -1909,6 +1910,7 @@ gst/faceoverlay/Makefile
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gst/festival/Makefile
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gst/festival/Makefile
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gst/fieldanalysis/Makefile
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gst/fieldanalysis/Makefile
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gst/freeze/Makefile
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gst/freeze/Makefile
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gst/freeverb/Makefile
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gst/frei0r/Makefile
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gst/frei0r/Makefile
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gst/gaudieffects/Makefile
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gst/gaudieffects/Makefile
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gst/geometrictransform/Makefile
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gst/geometrictransform/Makefile
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28
gst/freeverb/Makefile.am
Normal file
28
gst/freeverb/Makefile.am
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@ -0,0 +1,28 @@
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plugin_LTLIBRARIES = libgstfreeverb.la
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# sources used to compile this plug-in
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libgstfreeverb_la_SOURCES = gstfreeverb.c
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# flags used to compile this plugin
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# add other _CFLAGS and _LIBS as needed
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libgstfreeverb_la_CFLAGS = $(GST_CFLAGS) $(GST_CONTROLLER_CFLAGS)
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libgstfreeverb_la_LIBADD = $(GST_BASE_LIBS) $(GST_CONTROLLER_LIBS) $(GST_LIBS)
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libgstfreeverb_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstfreeverb_la_LIBTOOLFLAGS = --tag=disable-static
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# headers we need but don't want installed
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noinst_HEADERS = gstfreeverb.h
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Android.mk: Makefile.am $(BUILT_SOURCES)
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androgenizer \
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-:PROJECT libgstfreeverb -:SHARED libgstfreeverb \
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-:TAGS eng debug \
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-:REL_TOP $(top_srcdir) -:ABS_TOP $(abs_top_srcdir) \
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-:SOURCES $(libgstfreeverb_la_SOURCES) \
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-:CFLAGS $(DEFS) $(DEFAULT_INCLUDES) $(libgstfreeverb_la_CFLAGS) \
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-:LDFLAGS $(libgstfreeverb_la_LDFLAGS) \
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$(libgstfreeverb_la_LIBADD) \
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-ldl \
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-:PASSTHROUGH LOCAL_ARM_MODE:=arm \
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LOCAL_MODULE_PATH:='$$(TARGET_OUT)/lib/gstreamer-0.10' \
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> $@
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972
gst/freeverb/gstfreeverb.c
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972
gst/freeverb/gstfreeverb.c
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@ -0,0 +1,972 @@
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/*
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* GStreamer
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* Copyright (C) 2011 Stefan Sauer <ensonic@users.sf.net>
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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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* Freeverb
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*
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* Written by Jezar at Dreampoint, June 2000
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* http://www.dreampoint.co.uk
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* This code is public domain
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*
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* Translated to C by Peter Hanappe, Mai 2001
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* Transformed into a GStreamer plugin by Stefan Sauer, Nov 2011
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*/
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/**
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* SECTION:element-freeverb
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*
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* Reverberation/room effect.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch audiotestsrc wave=saw ! freeverb ! autoaudiosink
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* gst-launch filesrc location="melo1.ogg" ! decodebin ! audioconvert ! freeverb ! autoaudiosink
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* ]|
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* </refsect2>
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*/
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/* FIXME:
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* - add mono-to-mono, then we might also need stereo-to-mono ?
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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 <math.h>
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#include <stdlib.h>
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/controller/gstcontroller.h>
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#include "gstfreeverb.h"
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#define GST_CAT_DEFAULT gst_freeverb_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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enum
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{
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PROP_0,
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PROP_ROOM_SIZE,
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PROP_DAMPING,
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PROP_PAN_WIDTH,
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PROP_LEVEL
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};
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-float, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, 2 ], "
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"endianness = (int) BYTE_ORDER, " "width = (int) 32; "
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"audio/x-raw-int, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, 2 ], "
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"endianness = (int) BYTE_ORDER, "
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"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
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);
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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-float, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) 2, "
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"endianness = (int) BYTE_ORDER, " "width = (int) 32; "
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"audio/x-raw-int, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) 2, "
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"endianness = (int) BYTE_ORDER, "
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"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
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);
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#define _do_init(type) { \
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const GInterfaceInfo preset_interface_info = { NULL, NULL, NULL }; \
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g_type_add_interface_static (type, GST_TYPE_PRESET, &preset_interface_info); \
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\
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GST_DEBUG_CATEGORY_INIT (gst_freeverb_debug, "freeverb", 0, \
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"freeverb element"); \
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}
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GST_BOILERPLATE_FULL (GstFreeverb, gst_freeverb, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, _do_init);
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static void gst_freeverb_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_freeverb_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_freeverb_finalize (GObject * object);
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static gboolean gst_freeverb_get_unit_size (GstBaseTransform * base,
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GstCaps * caps, guint * size);
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static GstCaps *gst_freeverb_transform_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps);
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static gboolean gst_freeverb_set_caps (GstBaseTransform * base,
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GstCaps * incaps, GstCaps * outcaps);
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static GstFlowReturn gst_freeverb_transform (GstBaseTransform * base,
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GstBuffer * inbuf, GstBuffer * outbuf);
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static gboolean gst_freeverb_transform_m2s_int (GstFreeverb * filter,
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gint16 * idata, gint16 * odata, guint num_samples);
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static gboolean gst_freeverb_transform_s2s_int (GstFreeverb * filter,
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gint16 * idata, gint16 * odata, guint num_samples);
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static gboolean gst_freeverb_transform_m2s_float (GstFreeverb * filter,
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gfloat * idata, gfloat * odata, guint num_samples);
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static gboolean gst_freeverb_transform_s2s_float (GstFreeverb * filter,
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gfloat * idata, gfloat * odata, guint num_samples);
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/* Table with processing functions: [channels][format] */
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static GstFreeverbProcessFunc process_functions[2][2] = {
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{
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(GstFreeverbProcessFunc) gst_freeverb_transform_m2s_int,
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(GstFreeverbProcessFunc) gst_freeverb_transform_m2s_float,
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},
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{
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(GstFreeverbProcessFunc) gst_freeverb_transform_s2s_int,
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(GstFreeverbProcessFunc) gst_freeverb_transform_s2s_float,
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}
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};
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/***************************************************************
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*
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* REVERB
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*/
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/* Denormalising:
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*
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* Another method fixes the problem cheaper: Use a small DC-offset in
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* the filter calculations. Now the signals converge not against 0,
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* but against the offset. The constant offset is invisible from the
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* outside world (i.e. it does not appear at the output. There is a
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* very small turn-on transient response, which should not cause
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* problems.
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*/
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//#define DC_OFFSET 0
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#define DC_OFFSET 1e-8
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//#define DC_OFFSET 0.001f
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/* all pass filter */
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typedef struct _freeverb_allpass
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{
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gfloat feedback;
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gfloat *buffer;
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gint bufsize;
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gint bufidx;
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} freeverb_allpass;
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static void
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freeverb_allpass_setbuffer (freeverb_allpass * allpass, gint size)
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{
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allpass->bufidx = 0;
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allpass->buffer = g_new (gfloat, size);
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allpass->bufsize = size;
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}
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static void
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freeverb_allpass_release (freeverb_allpass * allpass)
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{
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g_free (allpass->buffer);
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}
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static void
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freeverb_allpass_init (freeverb_allpass * allpass)
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{
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gint i, len = allpass->bufsize;
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gfloat *buf = allpass->buffer;
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for (i = 0; i < len; i++) {
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buf[i] = DC_OFFSET; /* this is not 100 % correct. */
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}
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}
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static void
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freeverb_allpass_setfeedback (freeverb_allpass * allpass, gfloat val)
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{
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allpass->feedback = val;
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}
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/*
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static gfloat
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freeverb_allpass_getfeedback(freeverb_allpass* allpass)
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{
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return allpass->feedback;
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}*/
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#define freeverb_allpass_process(_allpass, _input_1) \
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{ \
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gfloat output; \
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gfloat bufout; \
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bufout = _allpass.buffer[_allpass.bufidx]; \
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output = bufout-_input_1; \
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_allpass.buffer[_allpass.bufidx] = _input_1 + (bufout * _allpass.feedback); \
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if (++_allpass.bufidx >= _allpass.bufsize) { \
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_allpass.bufidx = 0; \
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} \
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_input_1 = output; \
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}
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/* comb filter */
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typedef struct _freeverb_comb
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{
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gfloat feedback;
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gfloat filterstore;
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gfloat damp1;
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gfloat damp2;
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gfloat *buffer;
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gint bufsize;
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gint bufidx;
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} freeverb_comb;
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static void
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freeverb_comb_setbuffer (freeverb_comb * comb, gint size)
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{
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comb->filterstore = 0;
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comb->bufidx = 0;
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comb->buffer = g_new (gfloat, size);
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comb->bufsize = size;
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}
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static void
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freeverb_comb_release (freeverb_comb * comb)
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{
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g_free (comb->buffer);
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}
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static void
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freeverb_comb_init (freeverb_comb * comb)
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{
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gint i, len = comb->bufsize;
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gfloat *buf = comb->buffer;
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for (i = 0; i < len; i++) {
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buf[i] = DC_OFFSET; /* This is not 100 % correct. */
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}
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}
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static void
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freeverb_comb_setdamp (freeverb_comb * comb, gfloat val)
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{
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comb->damp1 = val;
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comb->damp2 = 1 - val;
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}
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/*
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static gfloat
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freeverb_comb_getdamp(freeverb_comb* comb)
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{
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return comb->damp1;
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}*/
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static void
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freeverb_comb_setfeedback (freeverb_comb * comb, gfloat val)
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{
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comb->feedback = val;
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}
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/*
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static gfloat
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freeverb_comb_getfeedback(freeverb_comb* comb)
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{
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return comb->feedback;
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}*/
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#define freeverb_comb_process(_comb, _input_1, _output) \
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{ \
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gfloat _tmp = _comb.buffer[_comb.bufidx]; \
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_comb.filterstore = (_tmp * _comb.damp2) + (_comb.filterstore * _comb.damp1); \
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_comb.buffer[_comb.bufidx] = _input_1 + (_comb.filterstore * _comb.feedback); \
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if (++_comb.bufidx >= _comb.bufsize) { \
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_comb.bufidx = 0; \
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} \
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_output += _tmp; \
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}
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#define numcombs 8
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#define numallpasses 4
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#define fixedgain 0.015f
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#define scalewet 1.0f
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#define scaledry 1.0f
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#define scaledamp 1.0f
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#define scaleroom 0.28f
|
||||||
|
#define offsetroom 0.7f
|
||||||
|
#define stereospread 23
|
||||||
|
|
||||||
|
/* These values assume 44.1KHz sample rate
|
||||||
|
* they will need scaling for 96KHz (or other) sample rates.
|
||||||
|
* The values were obtained by listening tests.
|
||||||
|
*/
|
||||||
|
#define combtuningL1 1116
|
||||||
|
#define combtuningR1 (1116 + stereospread)
|
||||||
|
#define combtuningL2 1188
|
||||||
|
#define combtuningR2 (1188 + stereospread)
|
||||||
|
#define combtuningL3 1277
|
||||||
|
#define combtuningR3 (1277 + stereospread)
|
||||||
|
#define combtuningL4 1356
|
||||||
|
#define combtuningR4 (1356 + stereospread)
|
||||||
|
#define combtuningL5 1422
|
||||||
|
#define combtuningR5 (1422 + stereospread)
|
||||||
|
#define combtuningL6 1491
|
||||||
|
#define combtuningR6 (1491 + stereospread)
|
||||||
|
#define combtuningL7 1557
|
||||||
|
#define combtuningR7 (1557 + stereospread)
|
||||||
|
#define combtuningL8 1617
|
||||||
|
#define combtuningR8 (1617 + stereospread)
|
||||||
|
#define allpasstuningL1 556
|
||||||
|
#define allpasstuningR1 (556 + stereospread)
|
||||||
|
#define allpasstuningL2 441
|
||||||
|
#define allpasstuningR2 (441 + stereospread)
|
||||||
|
#define allpasstuningL3 341
|
||||||
|
#define allpasstuningR3 (341 + stereospread)
|
||||||
|
#define allpasstuningL4 225
|
||||||
|
#define allpasstuningR4 (225 + stereospread)
|
||||||
|
|
||||||
|
struct _GstFreeverbPrivate
|
||||||
|
{
|
||||||
|
gfloat roomsize;
|
||||||
|
gfloat damp;
|
||||||
|
gfloat wet, wet1, wet2, dry;
|
||||||
|
gfloat width;
|
||||||
|
gfloat gain;
|
||||||
|
/*
|
||||||
|
The following are all declared inline
|
||||||
|
to remove the need for dynamic allocation
|
||||||
|
with its subsequent error-checking messiness
|
||||||
|
*/
|
||||||
|
/* Comb filters */
|
||||||
|
freeverb_comb combL[numcombs];
|
||||||
|
freeverb_comb combR[numcombs];
|
||||||
|
/* Allpass filters */
|
||||||
|
freeverb_allpass allpassL[numallpasses];
|
||||||
|
freeverb_allpass allpassR[numallpasses];
|
||||||
|
};
|
||||||
|
|
||||||
|
static void
|
||||||
|
freeverb_revmodel_init (GstFreeverb * filter)
|
||||||
|
{
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
gint i;
|
||||||
|
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_init (&priv->combL[i]);
|
||||||
|
freeverb_comb_init (&priv->combR[i]);
|
||||||
|
}
|
||||||
|
for (i = 0; i < numallpasses; i++) {
|
||||||
|
freeverb_allpass_init (&priv->allpassL[i]);
|
||||||
|
freeverb_allpass_init (&priv->allpassR[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
freeverb_revmodel_free (GstFreeverb * filter)
|
||||||
|
{
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
gint i;
|
||||||
|
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_release (&priv->combL[i]);
|
||||||
|
freeverb_comb_release (&priv->combR[i]);
|
||||||
|
}
|
||||||
|
for (i = 0; i < numallpasses; i++) {
|
||||||
|
freeverb_allpass_release (&priv->allpassL[i]);
|
||||||
|
freeverb_allpass_release (&priv->allpassR[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* GObject vmethod implementations */
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_freeverb_base_init (gpointer klass)
|
||||||
|
{
|
||||||
|
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||||
|
|
||||||
|
gst_element_class_add_pad_template (element_class,
|
||||||
|
gst_static_pad_template_get (&src_template));
|
||||||
|
gst_element_class_add_pad_template (element_class,
|
||||||
|
gst_static_pad_template_get (&sink_template));
|
||||||
|
gst_element_class_set_details_simple (element_class, "Stereo positioning",
|
||||||
|
"Filter/Effect/Audio",
|
||||||
|
"Reverberation/room effect", "Stefan Sauer <ensonic@users.sf.net>");
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_freeverb_class_init (GstFreeverbClass * klass)
|
||||||
|
{
|
||||||
|
GObjectClass *gobject_class;
|
||||||
|
|
||||||
|
g_type_class_add_private (klass, sizeof (GstFreeverbPrivate));
|
||||||
|
|
||||||
|
gobject_class = (GObjectClass *) klass;
|
||||||
|
gobject_class->set_property = gst_freeverb_set_property;
|
||||||
|
gobject_class->get_property = gst_freeverb_get_property;
|
||||||
|
gobject_class->finalize = gst_freeverb_finalize;
|
||||||
|
|
||||||
|
g_object_class_install_property (gobject_class, PROP_ROOM_SIZE,
|
||||||
|
g_param_spec_float ("room-size", "Room size",
|
||||||
|
"Size of the simulated room", 0.0, 1.0, 0.5,
|
||||||
|
G_PARAM_CONSTRUCT | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE |
|
||||||
|
G_PARAM_STATIC_STRINGS));
|
||||||
|
g_object_class_install_property (gobject_class, PROP_DAMPING,
|
||||||
|
g_param_spec_float ("damping", "Damping", "Damping of high frequencies",
|
||||||
|
0.0, 1.0, 0.2,
|
||||||
|
G_PARAM_CONSTRUCT | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE |
|
||||||
|
G_PARAM_STATIC_STRINGS));
|
||||||
|
g_object_class_install_property (gobject_class, PROP_PAN_WIDTH,
|
||||||
|
g_param_spec_float ("width", "Width", "Stereo panorama width", 0.0, 1.0,
|
||||||
|
1.0,
|
||||||
|
G_PARAM_CONSTRUCT | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE |
|
||||||
|
G_PARAM_STATIC_STRINGS));
|
||||||
|
g_object_class_install_property (gobject_class, PROP_LEVEL,
|
||||||
|
g_param_spec_float ("level", "Level", "dry/wet level", 0.0, 1.0, 0.5,
|
||||||
|
G_PARAM_CONSTRUCT | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE |
|
||||||
|
G_PARAM_STATIC_STRINGS));
|
||||||
|
|
||||||
|
GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
|
||||||
|
GST_DEBUG_FUNCPTR (gst_freeverb_get_unit_size);
|
||||||
|
GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
|
||||||
|
GST_DEBUG_FUNCPTR (gst_freeverb_transform_caps);
|
||||||
|
GST_BASE_TRANSFORM_CLASS (klass)->set_caps =
|
||||||
|
GST_DEBUG_FUNCPTR (gst_freeverb_set_caps);
|
||||||
|
GST_BASE_TRANSFORM_CLASS (klass)->transform =
|
||||||
|
GST_DEBUG_FUNCPTR (gst_freeverb_transform);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_freeverb_init (GstFreeverb * filter, GstFreeverbClass * klass)
|
||||||
|
{
|
||||||
|
filter->priv =
|
||||||
|
G_TYPE_INSTANCE_GET_PRIVATE (filter, GST_TYPE_FREEVERB,
|
||||||
|
GstFreeverbPrivate);
|
||||||
|
|
||||||
|
filter->width = 0;
|
||||||
|
filter->channels = 0;
|
||||||
|
filter->format_float = FALSE;
|
||||||
|
filter->process = NULL;
|
||||||
|
|
||||||
|
gst_base_transform_set_gap_aware (GST_BASE_TRANSFORM (filter), TRUE);
|
||||||
|
|
||||||
|
freeverb_revmodel_init (filter);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_freeverb_finalize (GObject * object)
|
||||||
|
{
|
||||||
|
GstFreeverb *filter = GST_FREEVERB (object);
|
||||||
|
|
||||||
|
freeverb_revmodel_free (filter);
|
||||||
|
|
||||||
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_freeverb_set_process_function (GstFreeverb * filter)
|
||||||
|
{
|
||||||
|
gint channel_index, format_index;
|
||||||
|
|
||||||
|
/* set processing function */
|
||||||
|
channel_index = filter->channels - 1;
|
||||||
|
if (channel_index > 1 || channel_index < 0) {
|
||||||
|
filter->process = NULL;
|
||||||
|
return FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
format_index = (filter->format_float) ? 1 : 0;
|
||||||
|
|
||||||
|
filter->process = process_functions[channel_index][format_index];
|
||||||
|
|
||||||
|
g_assert (filter->process);
|
||||||
|
return TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_freeverb_init_rev_model (GstFreeverb * filter)
|
||||||
|
{
|
||||||
|
gfloat srfactor = filter->rate / 44100.0f;
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
|
||||||
|
freeverb_revmodel_free (filter);
|
||||||
|
|
||||||
|
priv->gain = fixedgain;
|
||||||
|
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[0], combtuningL1 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[0], combtuningR1 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[1], combtuningL2 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[1], combtuningR2 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[2], combtuningL3 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[2], combtuningR3 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[3], combtuningL4 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[3], combtuningR4 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[4], combtuningL5 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[4], combtuningR5 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[5], combtuningL6 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[5], combtuningR6 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[6], combtuningL7 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[6], combtuningR7 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combL[7], combtuningL8 * srfactor);
|
||||||
|
freeverb_comb_setbuffer (&priv->combR[7], combtuningR8 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassL[0], allpasstuningL1 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassR[0], allpasstuningR1 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassL[1], allpasstuningL2 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassR[1], allpasstuningR2 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassL[2], allpasstuningL3 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassR[2], allpasstuningR3 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassL[3], allpasstuningL4 * srfactor);
|
||||||
|
freeverb_allpass_setbuffer (&priv->allpassR[3], allpasstuningR4 * srfactor);
|
||||||
|
|
||||||
|
/* clear buffers */
|
||||||
|
freeverb_revmodel_init (filter);
|
||||||
|
|
||||||
|
/* set default values */
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassL[0], 0.5f);
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassR[0], 0.5f);
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassL[1], 0.5f);
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassR[1], 0.5f);
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassL[2], 0.5f);
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassR[2], 0.5f);
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassL[3], 0.5f);
|
||||||
|
freeverb_allpass_setfeedback (&priv->allpassR[3], 0.5f);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_freeverb_set_property (GObject * object, guint prop_id,
|
||||||
|
const GValue * value, GParamSpec * pspec)
|
||||||
|
{
|
||||||
|
GstFreeverb *filter = GST_FREEVERB (object);
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
gint i;
|
||||||
|
|
||||||
|
switch (prop_id) {
|
||||||
|
case PROP_ROOM_SIZE:
|
||||||
|
filter->room_size = g_value_get_float (value);
|
||||||
|
priv->roomsize = (filter->room_size * scaleroom) + offsetroom;
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_setfeedback (&priv->combL[i], priv->roomsize);
|
||||||
|
freeverb_comb_setfeedback (&priv->combR[i], priv->roomsize);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case PROP_DAMPING:
|
||||||
|
filter->damping = g_value_get_float (value);
|
||||||
|
priv->damp = filter->damping * scaledamp;
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_setdamp (&priv->combL[i], priv->damp);
|
||||||
|
freeverb_comb_setdamp (&priv->combR[i], priv->damp);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case PROP_PAN_WIDTH:
|
||||||
|
filter->pan_width = g_value_get_float (value);
|
||||||
|
priv->width = filter->pan_width;
|
||||||
|
priv->wet1 = priv->wet * (priv->width / 2.0f + 0.5f);
|
||||||
|
priv->wet2 = priv->wet * ((1.0f - priv->width) / 2.0f);
|
||||||
|
break;
|
||||||
|
case PROP_LEVEL:
|
||||||
|
filter->level = g_value_get_float (value);
|
||||||
|
priv->wet = filter->level * scalewet;
|
||||||
|
priv->dry = (1.0 - filter->level) * scaledry;
|
||||||
|
priv->wet1 = priv->wet * (priv->width / 2.0f + 0.5f);
|
||||||
|
priv->wet2 = priv->wet * ((1.0f - priv->width) / 2.0f);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_freeverb_get_property (GObject * object, guint prop_id,
|
||||||
|
GValue * value, GParamSpec * pspec)
|
||||||
|
{
|
||||||
|
GstFreeverb *filter = GST_FREEVERB (object);
|
||||||
|
|
||||||
|
switch (prop_id) {
|
||||||
|
case PROP_ROOM_SIZE:
|
||||||
|
g_value_set_float (value, filter->room_size);
|
||||||
|
break;
|
||||||
|
case PROP_DAMPING:
|
||||||
|
g_value_set_float (value, filter->damping);
|
||||||
|
break;
|
||||||
|
case PROP_PAN_WIDTH:
|
||||||
|
g_value_set_float (value, filter->pan_width);
|
||||||
|
break;
|
||||||
|
case PROP_LEVEL:
|
||||||
|
g_value_set_float (value, filter->level);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* GstBaseTransform vmethod implementations */
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_freeverb_get_unit_size (GstBaseTransform * base, GstCaps * caps,
|
||||||
|
guint * size)
|
||||||
|
{
|
||||||
|
gint width, channels;
|
||||||
|
GstStructure *structure;
|
||||||
|
gboolean ret;
|
||||||
|
|
||||||
|
g_assert (size);
|
||||||
|
|
||||||
|
/* this works for both float and int */
|
||||||
|
structure = gst_caps_get_structure (caps, 0);
|
||||||
|
ret = gst_structure_get_int (structure, "width", &width);
|
||||||
|
ret &= gst_structure_get_int (structure, "channels", &channels);
|
||||||
|
|
||||||
|
*size = width * channels / 8;
|
||||||
|
|
||||||
|
GST_INFO_OBJECT (base, "unit size: %u", *size);
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static GstCaps *
|
||||||
|
gst_freeverb_transform_caps (GstBaseTransform * base,
|
||||||
|
GstPadDirection direction, GstCaps * caps)
|
||||||
|
{
|
||||||
|
GstCaps *res;
|
||||||
|
GstStructure *structure;
|
||||||
|
|
||||||
|
/* transform caps gives one single caps so we can just replace
|
||||||
|
* the channel property with our range. */
|
||||||
|
res = gst_caps_copy (caps);
|
||||||
|
structure = gst_caps_get_structure (res, 0);
|
||||||
|
if (direction == GST_PAD_SRC) {
|
||||||
|
GST_INFO_OBJECT (base, "allow 1-2 channels");
|
||||||
|
gst_structure_set (structure, "channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
|
||||||
|
} else {
|
||||||
|
GST_INFO_OBJECT (base, "allow 2 channels");
|
||||||
|
gst_structure_set (structure, "channels", G_TYPE_INT, 2, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_freeverb_set_caps (GstBaseTransform * base, GstCaps * incaps,
|
||||||
|
GstCaps * outcaps)
|
||||||
|
{
|
||||||
|
GstFreeverb *filter = GST_FREEVERB (base);
|
||||||
|
const GstStructure *structure;
|
||||||
|
gboolean ret;
|
||||||
|
gint width, rate;
|
||||||
|
const gchar *fmt;
|
||||||
|
|
||||||
|
/*GST_INFO ("incaps are %" GST_PTR_FORMAT, incaps); */
|
||||||
|
|
||||||
|
structure = gst_caps_get_structure (incaps, 0);
|
||||||
|
ret = gst_structure_get_int (structure, "channels", &filter->channels);
|
||||||
|
if (!ret)
|
||||||
|
goto no_channels;
|
||||||
|
|
||||||
|
ret = gst_structure_get_int (structure, "width", &width);
|
||||||
|
if (!ret)
|
||||||
|
goto no_width;
|
||||||
|
filter->width = width / 8;
|
||||||
|
|
||||||
|
ret = gst_structure_get_int (structure, "rate", &rate);
|
||||||
|
if (!ret)
|
||||||
|
goto no_rate;
|
||||||
|
filter->rate = rate;
|
||||||
|
|
||||||
|
fmt = gst_structure_get_name (structure);
|
||||||
|
if (!strcmp (fmt, "audio/x-raw-int"))
|
||||||
|
filter->format_float = FALSE;
|
||||||
|
else
|
||||||
|
filter->format_float = TRUE;
|
||||||
|
|
||||||
|
GST_DEBUG_OBJECT (filter, "try to process %s input_1 with %d channels", fmt,
|
||||||
|
filter->channels);
|
||||||
|
|
||||||
|
ret = gst_freeverb_set_process_function (filter);
|
||||||
|
if (!ret)
|
||||||
|
GST_WARNING_OBJECT (filter, "can't process input_1 with %d channels",
|
||||||
|
filter->channels);
|
||||||
|
|
||||||
|
gst_freeverb_init_rev_model (filter);
|
||||||
|
filter->drained = FALSE;
|
||||||
|
GST_INFO_OBJECT (base, "model configured");
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
no_channels:
|
||||||
|
GST_DEBUG_OBJECT (filter, "no channels in caps");
|
||||||
|
return ret;
|
||||||
|
no_width:
|
||||||
|
GST_DEBUG_OBJECT (filter, "no width in caps");
|
||||||
|
return ret;
|
||||||
|
no_rate:
|
||||||
|
GST_DEBUG_OBJECT (filter, "no rate in caps");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_freeverb_transform_m2s_int (GstFreeverb * filter,
|
||||||
|
gint16 * idata, gint16 * odata, guint num_samples)
|
||||||
|
{
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
gint i, k;
|
||||||
|
gfloat out_l1, out_r1, input_1;
|
||||||
|
gfloat out_l2, out_r2, input_2;
|
||||||
|
gboolean drained = TRUE;
|
||||||
|
|
||||||
|
for (k = 0; k < num_samples; k++) {
|
||||||
|
|
||||||
|
out_l1 = out_r1 = 0.0;
|
||||||
|
|
||||||
|
/* The original Freeverb code expects a stereo signal and 'input_1'
|
||||||
|
* is set to the sum of the left and right input_1 sample. Since
|
||||||
|
* this code works on a mono signal, 'input_1' is set to twice the
|
||||||
|
* input_1 sample. */
|
||||||
|
input_2 = (gfloat) * idata++;
|
||||||
|
input_1 = (2.0f * input_2 + DC_OFFSET) * priv->gain;
|
||||||
|
|
||||||
|
/* Accumulate comb filters in parallel */
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_process (priv->combL[i], input_1, out_l1);
|
||||||
|
freeverb_comb_process (priv->combR[i], input_1, out_r1);
|
||||||
|
}
|
||||||
|
/* Feed through allpasses in series */
|
||||||
|
for (i = 0; i < numallpasses; i++) {
|
||||||
|
freeverb_allpass_process (priv->allpassL[i], out_l1);
|
||||||
|
freeverb_allpass_process (priv->allpassR[i], out_r1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Remove the DC offset */
|
||||||
|
out_l1 -= DC_OFFSET;
|
||||||
|
out_r1 -= DC_OFFSET;
|
||||||
|
|
||||||
|
/* Calculate output */
|
||||||
|
out_l2 = out_l1 * priv->wet1 + out_r1 * priv->wet2 + input_2 * priv->dry;
|
||||||
|
out_r2 = out_r1 * priv->wet1 + out_l1 * priv->wet2 + input_2 * priv->dry;
|
||||||
|
*odata++ = (gint16) CLAMP (out_l2, G_MININT16, G_MAXINT16);
|
||||||
|
*odata++ = (gint16) CLAMP (out_r2, G_MININT16, G_MAXINT16);
|
||||||
|
|
||||||
|
if (abs (out_l2) > 0 || abs (out_r2) > 0)
|
||||||
|
drained = FALSE;
|
||||||
|
}
|
||||||
|
return drained;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_freeverb_transform_s2s_int (GstFreeverb * filter,
|
||||||
|
gint16 * idata, gint16 * odata, guint num_samples)
|
||||||
|
{
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
gint i, k;
|
||||||
|
gfloat out_l1, out_r1, input_1l, input_1r;
|
||||||
|
gfloat out_l2, out_r2, input_2l, input_2r;
|
||||||
|
gboolean drained = TRUE;
|
||||||
|
|
||||||
|
for (k = 0; k < num_samples; k++) {
|
||||||
|
|
||||||
|
out_l1 = out_r1 = 0.0;
|
||||||
|
|
||||||
|
input_2l = (gfloat) * idata++;
|
||||||
|
input_2r = (gfloat) * idata++;
|
||||||
|
input_1l = (input_2l + DC_OFFSET) * priv->gain;
|
||||||
|
input_1r = (input_2r + DC_OFFSET) * priv->gain;
|
||||||
|
|
||||||
|
/* Accumulate comb filters in parallel */
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_process (priv->combL[i], input_1l, out_l1);
|
||||||
|
freeverb_comb_process (priv->combR[i], input_1r, out_r1);
|
||||||
|
}
|
||||||
|
/* Feed through allpasses in series */
|
||||||
|
for (i = 0; i < numallpasses; i++) {
|
||||||
|
freeverb_allpass_process (priv->allpassL[i], out_l1);
|
||||||
|
freeverb_allpass_process (priv->allpassR[i], out_r1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Remove the DC offset */
|
||||||
|
out_l1 -= DC_OFFSET;
|
||||||
|
out_r1 -= DC_OFFSET;
|
||||||
|
|
||||||
|
/* Calculate output */
|
||||||
|
out_l2 = out_l1 * priv->wet1 + out_r1 * priv->wet2 + input_2l * priv->dry;
|
||||||
|
out_r2 = out_r1 * priv->wet1 + out_l1 * priv->wet2 + input_2r * priv->dry;
|
||||||
|
*odata++ = (gint16) CLAMP (out_l2, G_MININT16, G_MAXINT16);
|
||||||
|
*odata++ = (gint16) CLAMP (out_r2, G_MININT16, G_MAXINT16);
|
||||||
|
|
||||||
|
if (abs (out_l2) > 0 || abs (out_r2) > 0)
|
||||||
|
drained = FALSE;
|
||||||
|
}
|
||||||
|
return drained;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_freeverb_transform_m2s_float (GstFreeverb * filter,
|
||||||
|
gfloat * idata, gfloat * odata, guint num_samples)
|
||||||
|
{
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
gint i, k;
|
||||||
|
gfloat out_l1, out_r1, input_1;
|
||||||
|
gfloat out_l2, out_r2, input_2;
|
||||||
|
gboolean drained = TRUE;
|
||||||
|
|
||||||
|
for (k = 0; k < num_samples; k++) {
|
||||||
|
|
||||||
|
out_l1 = out_r1 = 0.0;
|
||||||
|
|
||||||
|
/* The original Freeverb code expects a stereo signal and 'input_1'
|
||||||
|
* is set to the sum of the left and right input_1 sample. Since
|
||||||
|
* this code works on a mono signal, 'input_1' is set to twice the
|
||||||
|
* input_1 sample. */
|
||||||
|
input_2 = *idata++;
|
||||||
|
input_1 = (2.0f * input_2 + DC_OFFSET) * priv->gain;
|
||||||
|
|
||||||
|
/* Accumulate comb filters in parallel */
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_process (priv->combL[i], input_1, out_l1);
|
||||||
|
freeverb_comb_process (priv->combR[i], input_1, out_r1);
|
||||||
|
}
|
||||||
|
/* Feed through allpasses in series */
|
||||||
|
for (i = 0; i < numallpasses; i++) {
|
||||||
|
freeverb_allpass_process (priv->allpassL[i], out_l1);
|
||||||
|
freeverb_allpass_process (priv->allpassR[i], out_r1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Remove the DC offset */
|
||||||
|
out_l1 -= DC_OFFSET;
|
||||||
|
out_r1 -= DC_OFFSET;
|
||||||
|
|
||||||
|
/* Calculate output */
|
||||||
|
out_l2 = out_l1 * priv->wet1 + out_r1 * priv->wet2 + input_2 * priv->dry;
|
||||||
|
out_r2 = out_r1 * priv->wet1 + out_l1 * priv->wet2 + input_2 * priv->dry;
|
||||||
|
*odata++ = out_l2;
|
||||||
|
*odata++ = out_r2;
|
||||||
|
|
||||||
|
if (fabs (out_l2) > 0 || fabs (out_r2) > 0)
|
||||||
|
drained = FALSE;
|
||||||
|
}
|
||||||
|
return drained;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_freeverb_transform_s2s_float (GstFreeverb * filter,
|
||||||
|
gfloat * idata, gfloat * odata, guint num_samples)
|
||||||
|
{
|
||||||
|
GstFreeverbPrivate *priv = filter->priv;
|
||||||
|
gint i, k;
|
||||||
|
gfloat out_l1, out_r1, input_1l, input_1r;
|
||||||
|
gfloat out_l2, out_r2, input_2l, input_2r;
|
||||||
|
gboolean drained = TRUE;
|
||||||
|
|
||||||
|
for (k = 0; k < num_samples; k++) {
|
||||||
|
|
||||||
|
out_l1 = out_r1 = 0.0;
|
||||||
|
|
||||||
|
input_2l = *idata++;
|
||||||
|
input_2r = *idata++;
|
||||||
|
input_1l = (input_2l + DC_OFFSET) * priv->gain;
|
||||||
|
input_1r = (input_2r + DC_OFFSET) * priv->gain;
|
||||||
|
|
||||||
|
/* Accumulate comb filters in parallel */
|
||||||
|
for (i = 0; i < numcombs; i++) {
|
||||||
|
freeverb_comb_process (priv->combL[i], input_1l, out_l1);
|
||||||
|
freeverb_comb_process (priv->combR[i], input_1r, out_r1);
|
||||||
|
}
|
||||||
|
/* Feed through allpasses in series */
|
||||||
|
for (i = 0; i < numallpasses; i++) {
|
||||||
|
freeverb_allpass_process (priv->allpassL[i], out_l1);
|
||||||
|
freeverb_allpass_process (priv->allpassR[i], out_r1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Remove the DC offset */
|
||||||
|
out_l1 -= DC_OFFSET;
|
||||||
|
out_r1 -= DC_OFFSET;
|
||||||
|
|
||||||
|
/* Calculate output */
|
||||||
|
out_l2 = out_l1 * priv->wet1 + out_r1 * priv->wet2 + input_2l * priv->dry;
|
||||||
|
out_r2 = out_r1 * priv->wet1 + out_l1 * priv->wet2 + input_2r * priv->dry;
|
||||||
|
*odata++ = out_l2;
|
||||||
|
*odata++ = out_r2;
|
||||||
|
|
||||||
|
if (fabs (out_l2) > 0 || fabs (out_r2) > 0)
|
||||||
|
drained = FALSE;
|
||||||
|
}
|
||||||
|
return drained;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* this function does the actual processing
|
||||||
|
*/
|
||||||
|
static GstFlowReturn
|
||||||
|
gst_freeverb_transform (GstBaseTransform * base, GstBuffer * inbuf,
|
||||||
|
GstBuffer * outbuf)
|
||||||
|
{
|
||||||
|
GstFreeverb *filter = GST_FREEVERB (base);
|
||||||
|
guint num_samples = GST_BUFFER_SIZE (outbuf) / (2 * filter->width);
|
||||||
|
GstClockTime timestamp;
|
||||||
|
|
||||||
|
timestamp = GST_BUFFER_TIMESTAMP (inbuf);
|
||||||
|
timestamp =
|
||||||
|
gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME, timestamp);
|
||||||
|
|
||||||
|
GST_DEBUG_OBJECT (filter, "processing %u samples at %" GST_TIME_FORMAT,
|
||||||
|
num_samples, GST_TIME_ARGS (timestamp));
|
||||||
|
|
||||||
|
if (GST_CLOCK_TIME_IS_VALID (timestamp))
|
||||||
|
gst_object_sync_values (G_OBJECT (filter), timestamp);
|
||||||
|
|
||||||
|
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DISCONT))) {
|
||||||
|
filter->drained = FALSE;
|
||||||
|
}
|
||||||
|
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP))) {
|
||||||
|
if (filter->drained) {
|
||||||
|
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
|
||||||
|
memset (GST_BUFFER_DATA (outbuf), 0, GST_BUFFER_SIZE (outbuf));
|
||||||
|
return GST_FLOW_OK;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
filter->drained = FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
filter->drained = filter->process (filter, GST_BUFFER_DATA (inbuf),
|
||||||
|
GST_BUFFER_DATA (outbuf), num_samples);
|
||||||
|
|
||||||
|
if (filter->drained) {
|
||||||
|
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
|
||||||
|
}
|
||||||
|
|
||||||
|
return GST_FLOW_OK;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
plugin_init (GstPlugin * plugin)
|
||||||
|
{
|
||||||
|
gst_controller_init (NULL, NULL);
|
||||||
|
|
||||||
|
return gst_element_register (plugin, "freeverb",
|
||||||
|
GST_RANK_NONE, GST_TYPE_FREEVERB);
|
||||||
|
}
|
||||||
|
|
||||||
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||||
|
GST_VERSION_MINOR,
|
||||||
|
"freeverb",
|
||||||
|
"Reverberation/room effect",
|
||||||
|
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|
||||||
71
gst/freeverb/gstfreeverb.h
Normal file
71
gst/freeverb/gstfreeverb.h
Normal file
|
|
@ -0,0 +1,71 @@
|
||||||
|
/*
|
||||||
|
* GStreamer
|
||||||
|
* Copyright (C) 2011 Stefan Sauer <ensonic@users.sf.net>
|
||||||
|
*
|
||||||
|
* 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __GST_FREEVERB_H__
|
||||||
|
#define __GST_FREEVERB_H__
|
||||||
|
|
||||||
|
#include <gst/gst.h>
|
||||||
|
#include <gst/base/gstbasetransform.h>
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define GST_TYPE_FREEVERB (gst_freeverb_get_type())
|
||||||
|
#define GST_FREEVERB(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FREEVERB,GstFreeverb))
|
||||||
|
#define GST_IS_FREEVERB(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FREEVERB))
|
||||||
|
#define GST_FREEVERB_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_FREEVERB,GstFreeverbClass))
|
||||||
|
#define GST_IS_FREEVERB_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_FREEVERB))
|
||||||
|
#define GST_FREEVERB_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_FREEVERB,GstFreeverbClass))
|
||||||
|
|
||||||
|
typedef struct _GstFreeverb GstFreeverb;
|
||||||
|
typedef struct _GstFreeverbClass GstFreeverbClass;
|
||||||
|
typedef struct _GstFreeverbPrivate GstFreeverbPrivate;
|
||||||
|
|
||||||
|
typedef gboolean (*GstFreeverbProcessFunc)(GstFreeverb*, guint8*, guint8*, guint);
|
||||||
|
|
||||||
|
struct _GstFreeverb {
|
||||||
|
GstBaseTransform element;
|
||||||
|
|
||||||
|
/* < private > */
|
||||||
|
gfloat room_size;
|
||||||
|
gfloat damping;
|
||||||
|
gfloat pan_width;
|
||||||
|
gfloat level;
|
||||||
|
|
||||||
|
GstFreeverbProcessFunc process;
|
||||||
|
gint channels;
|
||||||
|
gboolean format_float;
|
||||||
|
gint width;
|
||||||
|
gint method;
|
||||||
|
gint rate;
|
||||||
|
|
||||||
|
gboolean drained;
|
||||||
|
|
||||||
|
GstFreeverbPrivate *priv;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _GstFreeverbClass {
|
||||||
|
GstBaseTransformClass parent_class;
|
||||||
|
};
|
||||||
|
|
||||||
|
GType gst_freeverb_get_type (void);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GST_FREEVERB_H__ */
|
||||||
Loading…
Reference in a new issue