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 

    23 #include "alaw-encode.h"

    24 #include "alaw-decode.h"

    25 

    26 GstStaticPadTemplate alaw_dec_src_factory = GST_STATIC_PAD_TEMPLATE ("src",

    27     GST_PAD_SRC,

    28     GST_PAD_ALWAYS,

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

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

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

    32         "endianness = (int) BYTE_ORDER, "

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

    34     );

    35 

    36 GstStaticPadTemplate alaw_dec_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",

    37     GST_PAD_SINK,

    38     GST_PAD_ALWAYS,

    39     GST_STATIC_CAPS ("audio/x-alaw, "

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

    41     );

    42 

    43 GstStaticPadTemplate alaw_enc_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",

    44     GST_PAD_SINK,

    45     GST_PAD_ALWAYS,

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

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

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

    49         "endianness = (int) BYTE_ORDER, "

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

    51     );

    52 

    53 GstStaticPadTemplate alaw_enc_src_factory = GST_STATIC_PAD_TEMPLATE ("src",

    54     GST_PAD_SRC,

    55     GST_PAD_ALWAYS,

    56     GST_STATIC_CAPS ("audio/x-alaw, "

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

    58     );

    59 

    60 static gboolean

    61 plugin_init (GstPlugin * plugin)

    62 {

    63   if (!gst_element_register (plugin, "alawenc",

    64           GST_RANK_NONE, GST_TYPE_ALAW_ENC) ||

    65       !gst_element_register (plugin, "alawdec",

    66           GST_RANK_PRIMARY, GST_TYPE_ALAW_DEC))

    67     return FALSE;

    68 

    69   return TRUE;

    70 }

    71 

    72 /* FIXME 0.11: merge alaw and mulaw into one plugin? */

    73 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,

    74     GST_VERSION_MINOR,

    75     "alaw",

    76     "ALaw audio conversion routines",

    77     plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

    78     

    79 

    80 EXPORT_C GstPluginDesc* _GST_PLUGIN_DESC()

    81 {

    82 	return &gst_plugin_desc;

    83 }