1 /* GStreamer PCM/A-Law conversions

     2  *

     3  * This library is free software; you can redistribute it and/or

     4  * modify it under the terms of the GNU Library General Public

     5  * License as published by the Free Software Foundation; either

     6  * version 2.1 of the License, or (at your option) any later version.

     7  *

     8  * This library is distributed in the hope that it will be useful,

     9  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    11  * Library General Public License for more details.

    12  *

    13  * You should have received a copy of the GNU Library General Public

    14  * License along with this library; if not, write to the

    15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    16  * Boston, MA 02111-1307, USA.

    17  */

    18 

    19 #ifdef HAVE_CONFIG_H

    20 #include "config.h"

    21 #endif

    22 #include "mulaw-encode.h"

    23 #include "mulaw-decode.h"

    24 

    25 GstStaticPadTemplate mulaw_dec_src_factory = GST_STATIC_PAD_TEMPLATE ("src",

    26     GST_PAD_SRC,

    27     GST_PAD_ALWAYS,

    28     GST_STATIC_CAPS ("audio/x-raw-int, "

    29         "rate = (int) [ 8000, 192000 ], "

    30         "channels = (int) [ 1, 2 ], "

    31         "endianness = (int) BYTE_ORDER, "

    32         "width = (int) 16, " "depth = (int) 16, " "signed = (boolean) True")

    33     );

    34 

    35 GstStaticPadTemplate mulaw_dec_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",

    36     GST_PAD_SINK,

    37     GST_PAD_ALWAYS,

    38     GST_STATIC_CAPS ("audio/x-mulaw, "

    39         "rate = [ 8000 , 192000 ], " "channels = [ 1 , 2 ]")

    40     );

    41 

    42 GstStaticPadTemplate mulaw_enc_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",

    43     GST_PAD_SINK,

    44     GST_PAD_ALWAYS,

    45     GST_STATIC_CAPS ("audio/x-raw-int, "

    46         "rate = (int) [ 8000, 192000 ], "

    47         "channels = (int) [ 1, 2 ], "

    48         "endianness = (int) BYTE_ORDER, "

    49         "width = (int) 16, " "depth = (int) 16, " "signed = (boolean) True")

    50     );

    51 

    52 GstStaticPadTemplate mulaw_enc_src_factory = GST_STATIC_PAD_TEMPLATE ("src",

    53     GST_PAD_SRC,

    54     GST_PAD_ALWAYS,

    55     GST_STATIC_CAPS ("audio/x-mulaw, "

    56         "rate = [ 8000 , 192000 ], " "channels = [ 1 , 2 ]")

    57     );

    58 

    59 static gboolean

    60 plugin_init (GstPlugin * plugin)

    61 {

    62   if (!gst_element_register (plugin, "mulawenc",

    63           GST_RANK_NONE, GST_TYPE_MULAWENC) ||

    64       !gst_element_register (plugin, "mulawdec",

    65           GST_RANK_PRIMARY, GST_TYPE_MULAWDEC))

    66     return FALSE;

    67 

    68   return TRUE;

    69 }

    70 

    71 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,

    72     GST_VERSION_MINOR,

    73     "mulaw",

    74     "MuLaw audio conversion routines",

    75     plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

    76 

    77 

    78 EXPORT_C GstPluginDesc* _GST_PLUGIN_DESC()

    79 {

    80 	return &gst_plugin_desc;

    81 }