mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-28 20:51:13 +00:00
331b016659
Original commit message from CVS: * gst/law/alaw.c: * gst/law/mulaw.c: Ref caps before passing to gst_pad_template_new(), since that takes ownership.
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/* GStreamer PCM/A-Law conversions
|
|
*
|
|
* 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 2.1 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "alaw-encode.h"
|
|
#include "alaw-decode.h"
|
|
|
|
static GstCaps *
|
|
alaw_factory (void)
|
|
{
|
|
return gst_caps_new_simple ("audio/x-alaw",
|
|
"rate", GST_TYPE_INT_RANGE, 8000, 192000,
|
|
"channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
|
|
}
|
|
|
|
static GstCaps *
|
|
linear_factory (void)
|
|
{
|
|
return gst_caps_new_simple ("audio/x-raw-int",
|
|
"width", G_TYPE_INT, 16,
|
|
"depth", G_TYPE_INT, 16,
|
|
"endianness", G_TYPE_INT, G_BYTE_ORDER,
|
|
"signed", G_TYPE_BOOLEAN, TRUE,
|
|
"rate", GST_TYPE_INT_RANGE, 8000, 192000,
|
|
"channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
|
|
}
|
|
|
|
GstPadTemplate *alawenc_src_template, *alawenc_sink_template;
|
|
GstPadTemplate *alawdec_src_template, *alawdec_sink_template;
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
GstCaps *alaw_caps, *linear_caps;
|
|
|
|
alaw_caps = alaw_factory ();
|
|
linear_caps = linear_factory ();
|
|
|
|
gst_caps_ref (alaw_caps);
|
|
gst_caps_ref (linear_caps);
|
|
alawenc_src_template =
|
|
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, alaw_caps);
|
|
alawenc_sink_template =
|
|
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, linear_caps);
|
|
|
|
gst_caps_ref (alaw_caps);
|
|
gst_caps_ref (linear_caps);
|
|
alawdec_src_template =
|
|
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, linear_caps);
|
|
alawdec_sink_template =
|
|
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, alaw_caps);
|
|
|
|
gst_caps_unref (alaw_caps);
|
|
gst_caps_unref (linear_caps);
|
|
|
|
if (!gst_element_register (plugin, "alawenc",
|
|
GST_RANK_NONE, GST_TYPE_ALAW_ENC) ||
|
|
!gst_element_register (plugin, "alawdec",
|
|
GST_RANK_PRIMARY, GST_TYPE_ALAW_DEC))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* FIXME 0.11: merge alaw and mulaw into one plugin? */
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"alaw",
|
|
"ALaw audio conversion routines",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|