1 /* GStreamer PCM to A-Law conversion

     2  * Copyright (C) 2000 by Abramo Bagnara <abramo@alsa-project.org>

     3  *

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

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

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

     7  * version 2 of the License, or (at your option) any later version.

     8  *

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

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

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

    12  * Library General Public License for more details.

    13  *

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

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

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

    17  * Boston, MA 02111-1307, USA.

    18  */

    19 

    20 

    21 #ifndef __GST_ALAW_ENCODE_H__

    22 #define __GST_ALAW_ENCODE_H__

    23 

    24 #include <gst/gst.h>

    25 

    26 G_BEGIN_DECLS

    27 

    28 #define GST_TYPE_ALAW_ENC \

    29   (gst_alaw_enc_get_type())

    30 #define GST_ALAW_ENC(obj) \

    31   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ALAW_ENC,GstALawEnc))

    32 #define GST_ALAW_ENC_CLASS(klass) \

    33   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ALAW_ENC,GstALawEncClass))

    34 #define GST_IS_ALAW_ENC(obj) \

    35   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ALAW_ENC))

    36 #define GST_IS_ALAW_ENC_CLASS(klass) \

    37   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ALAW_ENC))

    38 

    39 typedef struct _GstALawEnc GstALawEnc;

    40 typedef struct _GstALawEncClass GstALawEncClass;

    41 

    42 struct _GstALawEnc {

    43   GstElement element;

    44 

    45   GstPad *sinkpad,*srcpad;

    46 

    47   gint channels;

    48   gint rate;

    49 };

    50 

    51 struct _GstALawEncClass {

    52   GstElementClass parent_class;

    53 };

    54 #ifdef __SYMBIAN32__

    55 IMPORT_C

    56 #endif

    57 

    58 GType gst_alaw_enc_get_type(void);

    59 

    60 G_END_DECLS

    61 

    62 #endif /* __GST_ALAW_ENCODE_H__ */