gstreamer/gst/monkeyaudio/gstmonkeyaudio.cc
Jeremy Simon 12a38a0157 MonkeyAudio support little endian data only
Original commit message from CVS:
MonkeyAudio support little endian data only
2003-04-27 13:48:10 +00:00

149 lines
4.8 KiB
C++

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*
*/
#include <string.h>
#include <gst/gst.h>
#include "gstmonkeydec.h"
#include "gstmonkeyenc.h"
extern GstElementDetails gst_monkeydec_details;
extern GstElementDetails gst_monkeyenc_details;
static GstCaps* monkey_type_find (GstBuffer *buf, gpointer priv);
GstPadTemplate *monkeydec_sink_template, *monkeydec_src_template;
GstPadTemplate *monkeyenc_sink_template, *monkeyenc_src_template;
static GstCaps*
monkey_caps_factory (void)
{
return gst_caps_new ("monkey_application",
"application/x-ape",
NULL
);
}
static GstCaps*
raw_caps_factory (void)
{
return gst_caps_new ("monkey_raw",
"audio/raw",
gst_props_new (
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
"signed", GST_PROPS_BOOLEAN (TRUE),
"width", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"rate", GST_PROPS_INT_RANGE (11025, 44100),
"channels", GST_PROPS_INT_RANGE (1, 2),
NULL
));
}
static GstCaps*
wav_caps_factory (void)
{
return gst_caps_new ("monkey_wav",
"audio/x-wav",
NULL );
}
static GstTypeDefinition monkeydefinition = {
"monkey_application/x-ape", "application/x-ape", ".ape", monkey_type_find,
};
static GstCaps*
monkey_type_find (GstBuffer *buf, gpointer priv)
{
if (strncmp ((gchar *)GST_BUFFER_DATA (buf), "MAC ", 4) != 0)
return NULL;
return gst_caps_new ("monkey_type_find", "application/x-ape", NULL);
}
static gboolean
plugin_init (GModule * module, GstPlugin * plugin)
{
GstElementFactory *monkey_dec, *monkey_enc;
GstTypeFactory *type;
GstCaps *raw_caps, *wav_caps, *monkey_caps;
/* this filter needs the bytestream package */
if (!gst_library_load ("gstbytestream"))
return FALSE;
raw_caps = raw_caps_factory ();
monkey_caps = monkey_caps_factory ();
wav_caps = wav_caps_factory ();
/* create an elementfactory for the monkeydec element */
monkey_dec = gst_element_factory_new ("monkeydec", GST_TYPE_MONKEYDEC, &gst_monkeydec_details);
g_return_val_if_fail(monkey_dec != NULL, FALSE);
/* register sink pads */
monkeydec_sink_template = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
monkey_caps, NULL);
gst_element_factory_add_pad_template (monkey_dec, monkeydec_sink_template);
/* register src pads */
monkeydec_src_template = gst_pad_template_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
raw_caps, NULL);
gst_element_factory_add_pad_template (monkey_dec, monkeydec_src_template);
gst_element_factory_set_rank (monkey_dec, GST_ELEMENT_RANK_PRIMARY);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (monkey_dec));
/* create an elementfactory for the monkeydec element */
monkey_enc = gst_element_factory_new ("monkeyenc", GST_TYPE_MONKEYENC, &gst_monkeyenc_details);
g_return_val_if_fail(monkey_enc != NULL, FALSE);
/* register sink pads */
monkeyenc_sink_template = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
raw_caps, NULL);
gst_element_factory_add_pad_template (monkey_enc, monkeyenc_sink_template);
/* register src pads */
monkeyenc_src_template = gst_pad_template_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
monkey_caps, NULL);
gst_element_factory_add_pad_template (monkey_enc, monkeyenc_src_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (monkey_enc));
type = gst_type_factory_new (&monkeydefinition);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"monkey audio",
plugin_init
};