1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

     3 *

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

     5 * modify it under the terms of the GNU Lesser 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 * Lesser General Public License for more details.

    13 *

    14 * You should have received a copy of the GNU Lesser 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 * Description:

    20 *

    21 */

    22 

    23 #ifndef __ERROR_CONCEALMENT_INTERFACE__H

    24 #define __ERROR_CONCEALMENT_INTERFACE__H

    25 

    26 #include <glib.h>

    27 #include <gst/gstelement.h>

    28 #include <gst/gstpluginfeature.h>

    29 #include <gst/gst.h>

    30 

    31 G_BEGIN_DECLS

    32 

    33 #define GST_TYPE_ERROR_CONCEALMENT     (gst_error_concealment_get_type ())

    34 #define GST_ERROR_CONCEALMENT(obj)     (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_ERROR_CONCEALMENT, GstErrorConcealment))

    35 #define GST_IS_ERROR_CONCEALMENT(obj)      (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_ERROR_CONCEALMENT))

    36 #define GST_ERROR_CONCEALMENT_GET_IFACE(obj)   (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_ERROR_CONCEALMENT, GstErrorConcealmentIntfc))

    37 

    38 typedef struct _GstErrorConcealment      GstErrorConcealment;

    39 typedef struct _GstErrorConcealmentIntfc GstErrorConcealmentIntfc;

    40 

    41 struct _GstErrorConcealmentIntfc

    42     {

    43     GTypeInterface parent;

    44     /**

    45      * Indicates that an frame of encoded audio is lost and that error

    46      * concealment should be performed for a lost frame.

    47      * By definition, the next buffer sent to the decoder will contain no

    48      * valid audio data.

    49      * @return status

    50      */

    51     gint (*ConcealErrorForNextBuffer) (void);

    52 

    53     /**

    54      * Puts the hwdevice into a frame-based interface.

    55      * The alternate mode of interface would be buffer-based.

    56      * @param aFrameMode

    57      * @return status

    58      */

    59     gint (*SetFrameMode)(gboolean aFrameMode);

    60 

    61     /**

    62      * Query to find out if frame-based interface is required by hwdevice

    63      * for supporting error concealment.

    64      * @param aFrameModeRqrd indicates if frame mode is required.

    65      * @return status

    66      */

    67     gint (*FrameModeRqrdForEC)(gboolean* aFrameModeRqrd);

    68 

    69     };

    70 

    71 IMPORT_C GType gst_error_concealment_get_type(void);

    72 

    73 G_END_DECLS

    74 

    75 #endif /* __ERROR_CONCEALMENT_INTERFACE */