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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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574 lines
17 KiB
C
574 lines
17 KiB
C
/* GStreamer
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* Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
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* 2001 Steve Baker <stevebaker_org@yahoo.co.uk>
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* 2003 Andy Wingo <wingo at pobox.com>
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* 2016 Thibault Saunier <thibault.saunier@collabora.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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 "gstlv2.h"
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#include "gstlv2utils.h"
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#include <string.h>
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#include <math.h>
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#include <glib.h>
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#include <lilv/lilv.h>
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#include <gst/audio/audio.h>
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#include <gst/audio/gstaudiofilter.h>
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#include <gst/audio/audio-channels.h>
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GST_DEBUG_CATEGORY_EXTERN (lv2_debug);
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#define GST_CAT_DEFAULT lv2_debug
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typedef struct _lv2_control_info
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{
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gchar *name;
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gchar *param_name;
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gfloat lowerbound, upperbound;
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gfloat def;
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gboolean lower, upper, samplerate;
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gboolean toggled, logarithmic, integer, writable;
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} lv2_control_info;
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typedef struct _GstLV2Filter GstLV2Filter;
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typedef struct _GstLV2FilterClass GstLV2FilterClass;
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struct _GstLV2Filter
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{
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GstAudioFilter parent;
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GstLV2 lv2;
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};
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struct _GstLV2FilterClass
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{
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GstAudioFilterClass parent_class;
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GstLV2Class lv2;
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};
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static GstAudioFilter *parent_class = NULL;
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/* preset interface */
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static gchar **
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gst_lv2_filter_get_preset_names (GstPreset * preset)
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{
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GstLV2Filter *self = (GstLV2Filter *) preset;
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return gst_lv2_get_preset_names (&self->lv2, (GstObject *) self);
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}
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static gboolean
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gst_lv2_filter_load_preset (GstPreset * preset, const gchar * name)
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{
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GstLV2Filter *self = (GstLV2Filter *) preset;
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return gst_lv2_load_preset (&self->lv2, (GstObject *) self, name);
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}
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static gboolean
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gst_lv2_filter_save_preset (GstPreset * preset, const gchar * name)
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{
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GstLV2Filter *self = (GstLV2Filter *) preset;
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return gst_lv2_save_preset (&self->lv2, (GstObject *) self, name);
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}
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static gboolean
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gst_lv2_filter_rename_preset (GstPreset * preset, const gchar * old_name,
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const gchar * new_name)
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{
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return FALSE;
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}
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static gboolean
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gst_lv2_filter_delete_preset (GstPreset * preset, const gchar * name)
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{
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GstLV2Filter *self = (GstLV2Filter *) preset;
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return gst_lv2_delete_preset (&self->lv2, (GstObject *) self, name);
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}
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static gboolean
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gst_lv2_filter_set_meta (GstPreset * preset, const gchar * name,
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const gchar * tag, const gchar * value)
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{
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return FALSE;
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}
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static gboolean
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gst_lv2_filter_get_meta (GstPreset * preset, const gchar * name,
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const gchar * tag, gchar ** value)
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{
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*value = NULL;
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return FALSE;
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}
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static void
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gst_lv2_filter_preset_interface_init (gpointer g_iface, gpointer iface_data)
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{
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GstPresetInterface *iface = g_iface;
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iface->get_preset_names = gst_lv2_filter_get_preset_names;
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iface->load_preset = gst_lv2_filter_load_preset;
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iface->save_preset = gst_lv2_filter_save_preset;
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iface->rename_preset = gst_lv2_filter_rename_preset;
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iface->delete_preset = gst_lv2_filter_delete_preset;
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iface->set_meta = gst_lv2_filter_set_meta;
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iface->get_meta = gst_lv2_filter_get_meta;
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}
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/* GObject vmethods implementation */
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static void
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gst_lv2_filter_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstLV2Filter *self = (GstLV2Filter *) object;
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gst_lv2_object_set_property (&self->lv2, object, prop_id, value, pspec);
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}
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static void
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gst_lv2_filter_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstLV2Filter *self = (GstLV2Filter *) object;
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gst_lv2_object_get_property (&self->lv2, object, prop_id, value, pspec);
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}
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static void
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gst_lv2_filter_finalize (GObject * object)
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{
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GstLV2Filter *self = (GstLV2Filter *) object;
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gst_lv2_finalize (&self->lv2);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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#if 0
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/* Convert an LV2 port role to a Gst channel positon
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* WARNING: If the group has only a single port,
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* GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER will be returned for pg:centerRole
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* (which is used by LV2 for mono groups), but this is not correct. In this
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* case the value must be changed to GST_AUDIO_CHANNEL_POSITION_FRONT_MONO
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* (this can't be done by this function because this information isn't known
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* at the time it is used).
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*/
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static GstAudioChannelPosition
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gst_lv2_filter_role_to_position (LilvNode * role)
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{
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/* Front. Mono and left/right are mututally exclusive */
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if (lilv_node_equals (role, center_role)) {
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return GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
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} else if (lilv_node_equals (role, left_role)) {
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return GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
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} else if (lilv_node_equals (role, right_role)) {
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return GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
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/* Rear. Left/right and center are mututally exclusive */
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} else if (lilv_node_equals (role, rear_center_role)) {
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return GST_AUDIO_CHANNEL_POSITION_REAR_CENTER;
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} else if (lilv_node_equals (role, rear_left_role)) {
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return GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
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} else if (lilv_node_equals (role, rear_right_role)) {
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return GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
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/* Subwoofer/low-frequency-effects */
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} else if (lilv_node_equals (role, lfe_role)) {
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return GST_AUDIO_CHANNEL_POSITION_LFE1;
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/* Center front speakers. Center and left/right_of_center
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* are mutually exclusive */
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} else if (lilv_node_equals (role, center_left_role)) {
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return GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER;
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} else if (lilv_node_equals (role, center_right_role)) {
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return GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER;
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/* sides */
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} else if (lilv_node_equals (role, side_left_role)) {
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return GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT;
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} else if (lilv_node_equals (role, side_right_role)) {
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return GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT;
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}
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return GST_AUDIO_CHANNEL_POSITION_INVALID;
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}
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static GstAudioChannelPosition *
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gst_lv2_filter_build_positions (GstLV2Group * group)
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{
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GstAudioChannelPosition *positions = NULL;
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/* don't do anything for mono */
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if (group->ports->len > 1) {
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gint i;
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positions = g_new (GstAudioChannelPosition, group->ports->len);
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for (i = 0; i < group->ports->len; ++i)
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positions[i] = g_array_index (group->ports, GstLV2Port, i).position;
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}
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return positions;
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}
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#endif
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/* Find and return the group @a uri in @a groups, or NULL if not found */
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static void
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gst_lv2_filter_type_class_add_pad_templates (GstLV2FilterClass * klass)
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{
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GstCaps *srccaps, *sinkcaps;
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GstPadTemplate *pad_template;
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GstElementClass *elem_class = GST_ELEMENT_CLASS (klass);
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gint in_channels = 1, out_channels = 1;
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in_channels = klass->lv2.in_group.ports->len;
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out_channels = klass->lv2.out_group.ports->len;
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/* FIXME Implement deintereleaved audio support */
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sinkcaps = gst_caps_new_simple ("audio/x-raw",
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"format", G_TYPE_STRING, GST_AUDIO_NE (F32),
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"channels", G_TYPE_INT, in_channels,
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"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"layout", G_TYPE_STRING, "interleaved", NULL);
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srccaps = gst_caps_new_simple ("audio/x-raw",
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"format", G_TYPE_STRING, GST_AUDIO_NE (F32),
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"channels", G_TYPE_INT, out_channels,
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"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"layout", G_TYPE_STRING, "interleaved", NULL);
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pad_template =
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gst_pad_template_new (GST_BASE_TRANSFORM_SINK_NAME, GST_PAD_SINK,
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GST_PAD_ALWAYS, sinkcaps);
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gst_element_class_add_pad_template (elem_class, pad_template);
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pad_template =
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gst_pad_template_new (GST_BASE_TRANSFORM_SRC_NAME, GST_PAD_SRC,
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GST_PAD_ALWAYS, srccaps);
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gst_element_class_add_pad_template (elem_class, pad_template);
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gst_caps_unref (sinkcaps);
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gst_caps_unref (srccaps);
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}
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static gboolean
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gst_lv2_filter_setup (GstAudioFilter * gsp, const GstAudioInfo * info)
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{
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GstLV2Filter *self = (GstLV2Filter *) gsp;
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g_return_val_if_fail (self->lv2.activated == FALSE, FALSE);
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GST_DEBUG_OBJECT (self, "instantiating the plugin at %d Hz",
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GST_AUDIO_INFO_RATE (info));
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if (!gst_lv2_setup (&self->lv2, GST_AUDIO_INFO_RATE (info)))
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goto no_instance;
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/* FIXME Handle audio channel positionning while negotiating CAPS */
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#if 0
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gint i;
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/* set input group pad audio channel position */
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for (i = 0; i < oclass->lv2.in_groups->len; ++i) {
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group = &g_array_index (oclass->lv2.in_groups, GstLV2Group, i);
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if (group->has_roles) {
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if ((positions = gst_lv2_filter_build_positions (group))) {
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if ((pad = gst_element_get_static_pad (GST_ELEMENT (gsp),
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lilv_node_as_string (group->symbol)))) {
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GST_INFO_OBJECT (self, "set audio channel positions on sink pad %s",
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lilv_node_as_string (group->symbol));
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s = gst_caps_get_structure (caps, 0);
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gst_audio_set_channel_positions (s, positions);
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gst_object_unref (pad);
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}
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g_free (positions);
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positions = NULL;
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}
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}
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}
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/* set output group pad audio channel position */
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for (i = 0; i < oclass->lv2.out_groups->len; ++i) {
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group = &g_array_index (oclass->lv2.out_groups, GstLV2Group, i);
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if (group->has_roles) {
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if ((positions = gst_lv2_filter_build_positions (group))) {
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if ((pad = gst_element_get_static_pad (GST_ELEMENT (gsp),
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lilv_node_as_string (group->symbol)))) {
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GST_INFO_OBJECT (self, "set audio channel positions on src pad %s",
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lilv_node_as_string (group->symbol));
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s = gst_caps_get_structure (caps, 0);
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gst_audio_set_channel_positions (s, positions);
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gst_object_unref (pad);
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}
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g_free (positions);
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positions = NULL;
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}
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}
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}
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#endif
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return TRUE;
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no_instance:
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{
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GST_ERROR_OBJECT (gsp, "could not create instance");
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return FALSE;
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}
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}
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static gboolean
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gst_lv2_filter_stop (GstBaseTransform * transform)
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{
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GstLV2Filter *lv2 = (GstLV2Filter *) transform;
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return gst_lv2_cleanup (&lv2->lv2, (GstObject *) lv2);
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}
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static inline void
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gst_lv2_filter_deinterleave_data (guint n_channels, gfloat * outdata,
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guint samples, gfloat * indata)
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{
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guint i, j;
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for (i = 0; i < n_channels; i++)
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for (j = 0; j < samples; j++)
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outdata[i * samples + j] = indata[j * n_channels + i];
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}
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static inline void
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gst_lv2_filter_interleave_data (guint n_channels, gfloat * outdata,
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guint samples, gfloat * indata)
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{
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guint i, j;
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for (i = 0; i < n_channels; i++)
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for (j = 0; j < samples; j++) {
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outdata[j * n_channels + i] = indata[i * samples + j];
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}
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}
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static GstFlowReturn
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gst_lv2_filter_transform_data (GstLV2Filter * self,
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GstMapInfo * in_map, GstMapInfo * out_map)
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{
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GstLV2FilterClass *klass =
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(GstLV2FilterClass *) GST_AUDIO_FILTER_GET_CLASS (self);
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GstLV2Class *lv2_class = &klass->lv2;
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GstLV2Group *lv2_group;
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GstLV2Port *lv2_port;
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guint j, k, l, nframes, samples, out_samples;
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gfloat *in = NULL, *out = NULL, *cv = NULL, *mem;
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gfloat val;
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nframes = in_map->size / sizeof (float);
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/* multi channel inputs */
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lv2_group = &lv2_class->in_group;
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samples = nframes / lv2_group->ports->len;
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GST_LOG_OBJECT (self, "in : samples=%u, nframes=%u, ports=%d", samples,
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nframes, lv2_group->ports->len);
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if (lv2_group->ports->len > 1) {
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in = g_new0 (gfloat, nframes);
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out = g_new0 (gfloat, samples * lv2_group->ports->len);
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gst_lv2_filter_deinterleave_data (lv2_group->ports->len, in,
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samples, (gfloat *) in_map->data);
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} else {
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in = (gfloat *) in_map->data;
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out = (gfloat *) out_map->data;
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}
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for (j = 0; j < lv2_group->ports->len; ++j) {
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lv2_port = &g_array_index (lv2_group->ports, GstLV2Port, j);
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lilv_instance_connect_port (self->lv2.instance, lv2_port->index,
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in + (j * samples));
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}
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/* multi channel outputs */
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lv2_group = &lv2_class->out_group;
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out_samples = nframes / lv2_group->ports->len;
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GST_LOG_OBJECT (self, "out: samples=%u, nframes=%u, ports=%d", out_samples,
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nframes, lv2_group->ports->len);
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for (j = 0; j < lv2_group->ports->len; ++j) {
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lv2_port = &g_array_index (lv2_group->ports, GstLV2Port, j);
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lilv_instance_connect_port (self->lv2.instance, lv2_port->index,
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out + (j * out_samples));
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}
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/* cv ports */
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cv = g_new (gfloat, samples * lv2_class->num_cv_in);
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for (j = k = 0; j < lv2_class->control_in_ports->len; j++) {
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lv2_port = &g_array_index (lv2_class->control_in_ports, GstLV2Port, j);
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if (lv2_port->type != GST_LV2_PORT_CV)
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continue;
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mem = cv + (k * samples);
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val = self->lv2.ports.control.in[j];
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/* FIXME: use gst_control_binding_get_value_array */
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for (l = 0; l < samples; l++)
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mem[l] = val;
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lilv_instance_connect_port (self->lv2.instance, lv2_port->index, mem);
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k++;
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}
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lilv_instance_run (self->lv2.instance, samples);
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if (lv2_group->ports->len > 1) {
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gst_lv2_filter_interleave_data (lv2_group->ports->len,
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(gfloat *) out_map->data, out_samples, out);
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g_free (out);
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g_free (in);
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}
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g_free (cv);
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_lv2_filter_transform_ip (GstBaseTransform * transform, GstBuffer * buf)
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{
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GstFlowReturn ret;
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GstMapInfo map;
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gst_buffer_map (buf, &map, GST_MAP_READWRITE);
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ret = gst_lv2_filter_transform_data ((GstLV2Filter *) transform, &map, &map);
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gst_buffer_unmap (buf, &map);
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return ret;
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}
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static GstFlowReturn
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gst_lv2_filter_transform (GstBaseTransform * transform,
|
|
GstBuffer * inbuf, GstBuffer * outbuf)
|
|
{
|
|
GstMapInfo in_map, out_map;
|
|
GstFlowReturn ret;
|
|
|
|
gst_buffer_map (inbuf, &in_map, GST_MAP_READ);
|
|
gst_buffer_map (outbuf, &out_map, GST_MAP_WRITE);
|
|
|
|
ret = gst_lv2_filter_transform_data ((GstLV2Filter *) transform,
|
|
&in_map, &out_map);
|
|
|
|
gst_buffer_unmap (inbuf, &in_map);
|
|
gst_buffer_unmap (outbuf, &out_map);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_lv2_filter_base_init (gpointer g_class)
|
|
{
|
|
GstLV2FilterClass *klass = (GstLV2FilterClass *) g_class;
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
gst_lv2_class_init (&klass->lv2, G_TYPE_FROM_CLASS (klass));
|
|
|
|
gst_lv2_element_class_set_metadata (&klass->lv2, element_class,
|
|
"Filter/Effect/Audio/LV2");
|
|
|
|
gst_lv2_filter_type_class_add_pad_templates (klass);
|
|
}
|
|
|
|
static void
|
|
gst_lv2_filter_base_finalize (GstLV2FilterClass * lv2_class)
|
|
{
|
|
gst_lv2_class_finalize (&lv2_class->lv2);
|
|
}
|
|
|
|
static void
|
|
gst_lv2_filter_class_init (GstLV2FilterClass * klass)
|
|
{
|
|
GObjectClass *gobject_class = (GObjectClass *) klass;
|
|
GstBaseTransformClass *transform_class = GST_BASE_TRANSFORM_CLASS (klass);
|
|
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (klass);
|
|
|
|
GST_DEBUG ("class_init %p", klass);
|
|
|
|
gobject_class->set_property = gst_lv2_filter_set_property;
|
|
gobject_class->get_property = gst_lv2_filter_get_property;
|
|
gobject_class->finalize = gst_lv2_filter_finalize;
|
|
|
|
audiofilter_class->setup = gst_lv2_filter_setup;
|
|
|
|
transform_class->stop = gst_lv2_filter_stop;
|
|
transform_class->transform = gst_lv2_filter_transform;
|
|
transform_class->transform_ip = gst_lv2_filter_transform_ip;
|
|
|
|
gst_lv2_class_install_properties (&klass->lv2, gobject_class, 1);
|
|
}
|
|
|
|
static void
|
|
gst_lv2_filter_init (GstLV2Filter * self, GstLV2FilterClass * klass)
|
|
{
|
|
gst_lv2_init (&self->lv2, &klass->lv2);
|
|
|
|
if (!lilv_plugin_has_feature (klass->lv2.plugin, in_place_broken_pred))
|
|
gst_base_transform_set_in_place (GST_BASE_TRANSFORM (self), TRUE);
|
|
}
|
|
|
|
void
|
|
gst_lv2_filter_register_element (GstPlugin * plugin, GstStructure * lv2_meta)
|
|
{
|
|
GTypeInfo info = {
|
|
sizeof (GstLV2FilterClass),
|
|
(GBaseInitFunc) gst_lv2_filter_base_init,
|
|
(GBaseFinalizeFunc) gst_lv2_filter_base_finalize,
|
|
(GClassInitFunc) gst_lv2_filter_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstLV2Filter),
|
|
0,
|
|
(GInstanceInitFunc) gst_lv2_filter_init,
|
|
};
|
|
const gchar *type_name =
|
|
gst_structure_get_string (lv2_meta, "element-type-name");
|
|
GType element_type =
|
|
g_type_register_static (GST_TYPE_AUDIO_FILTER, type_name, &info, 0);
|
|
gboolean can_do_presets;
|
|
|
|
/* register interfaces */
|
|
gst_structure_get_boolean (lv2_meta, "can-do-presets", &can_do_presets);
|
|
if (can_do_presets) {
|
|
const GInterfaceInfo preset_interface_info = {
|
|
(GInterfaceInitFunc) gst_lv2_filter_preset_interface_init,
|
|
NULL,
|
|
NULL
|
|
};
|
|
g_type_add_interface_static (element_type, GST_TYPE_PRESET,
|
|
&preset_interface_info);
|
|
}
|
|
|
|
gst_element_register (plugin, type_name, GST_RANK_NONE, element_type);
|
|
|
|
if (!parent_class)
|
|
parent_class = g_type_class_ref (GST_TYPE_AUDIO_FILTER);
|
|
}
|