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/* GStreamer
* Copyright (C) <2011> Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstplaysinkaudioconvert.h"
#include <gst/pbutils/pbutils.h>
#include <gst/gst-i18n-plugin.h>
GST_DEBUG_CATEGORY_STATIC (gst_play_sink_audio_convert_debug);
#define GST_CAT_DEFAULT gst_play_sink_audio_convert_debug
#define parent_class gst_play_sink_audio_convert_parent_class
G_DEFINE_TYPE (GstPlaySinkAudioConvert, gst_play_sink_audio_convert,
GST_TYPE_PLAY_SINK_CONVERT_BIN);
enum
{
PROP_0,
PROP_USE_CONVERTERS,
PROP_USE_VOLUME,
};
static gboolean
gst_play_sink_audio_convert_add_conversion_elements (GstPlaySinkAudioConvert *
self)
{
GstPlaySinkConvertBin *cbin = GST_PLAY_SINK_CONVERT_BIN (self);
GstElement *el, *prev = NULL;
g_assert (cbin->conversion_elements == NULL);
GST_DEBUG_OBJECT (self,
"Building audio conversion with use-converters %d, use-volume %d",
self->use_converters, self->use_volume);
if (self->use_converters) {
el = gst_play_sink_convert_bin_add_conversion_element_factory (cbin,
"audioconvert", "conv");
if (el) {
prev = el;
}
el = gst_play_sink_convert_bin_add_conversion_element_factory (cbin,
"audioresample", "resample");
if (el) {
if (prev) {
if (!gst_element_link_pads_full (prev, "src", el, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
}
prev = el;
}
}
if (self->use_volume && self->volume) {
el = self->volume;
gst_play_sink_convert_bin_add_conversion_element (cbin, el);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", el, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
}
prev = el;
}
return TRUE;
link_failed:
return FALSE;
}
static void
gst_play_sink_audio_convert_finalize (GObject * object)
{
GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (object);
if (self->volume)
gst_object_unref (self->volume);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_play_sink_audio_convert_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (object);
gboolean v, changed = FALSE;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
switch (prop_id) {
case PROP_USE_CONVERTERS:
v = g_value_get_boolean (value);
if (v != self->use_converters) {
self->use_converters = v;
changed = TRUE;
}
break;
case PROP_USE_VOLUME:
v = g_value_get_boolean (value);
if (v != self->use_volume) {
self->use_volume = v;
changed = TRUE;
}
break;
default:
break;
}
if (changed) {
GstPlaySinkConvertBin *cbin = GST_PLAY_SINK_CONVERT_BIN (self);
GST_DEBUG_OBJECT (self, "Rebuilding converter bin");
gst_play_sink_convert_bin_remove_elements (cbin);
gst_play_sink_audio_convert_add_conversion_elements (self);
gst_play_sink_convert_bin_add_identity (cbin);
gst_play_sink_convert_bin_cache_converter_caps (cbin);
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
}
static void
gst_play_sink_audio_convert_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (object);
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
switch (prop_id) {
case PROP_USE_CONVERTERS:
g_value_set_boolean (value, self->use_converters);
break;
case PROP_USE_VOLUME:
g_value_set_boolean (value, self->use_volume);
break;
default:
break;
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
}
static void
gst_play_sink_audio_convert_class_init (GstPlaySinkAudioConvertClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GST_DEBUG_CATEGORY_INIT (gst_play_sink_audio_convert_debug,
"playsinkaudioconvert", 0, "play bin");
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->finalize = gst_play_sink_audio_convert_finalize;
gobject_class->set_property = gst_play_sink_audio_convert_set_property;
gobject_class->get_property = gst_play_sink_audio_convert_get_property;
g_object_class_install_property (gobject_class, PROP_USE_CONVERTERS,
g_param_spec_boolean ("use-converters", "Use converters",
"Whether to use conversion elements", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_USE_VOLUME,
g_param_spec_boolean ("use-volume", "Use volume",
"Whether to use a volume element", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (gstelement_class,
"Player Sink Audio Converter", "Audio/Bin/Converter",
"Convenience bin for audio conversion",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
}
static void
gst_play_sink_audio_convert_init (GstPlaySinkAudioConvert * self)
{
GstPlaySinkConvertBin *cbin = GST_PLAY_SINK_CONVERT_BIN (self);
cbin->audio = TRUE;
/* FIXME: Only create this on demand but for now we need
* it to always exist because of playsink's volume proxying
* logic.
*/
self->volume = gst_element_factory_make ("volume", "volume");
if (self->volume)
gst_object_ref_sink (self->volume);
gst_play_sink_audio_convert_add_conversion_elements (self);
gst_play_sink_convert_bin_cache_converter_caps (cbin);
}
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