1 /* GStreamer Framed Audio Encoder

     2  * Copyright 2009 Collabora Ltd,

     3  * Copyright 2009 Nokia Corporation

     4  *  @author: Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>.

     5  *

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

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

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

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

    10  *

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

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

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

    14  * Library General Public License for more details.

    15  *

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

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

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

    19  * Boston, MA 02111-1307, USA.

    20  */

    21 

    22 #ifndef __GST_FRAMED_AUDIO_ENC_H__

    23 #define __GST_FRAMED_AUDIO_ENC_H__

    24 

    25 #include <gst/gst.h>

    26 #include <gst/base/gstadapter.h>

    27 

    28 G_BEGIN_DECLS

    29 

    30 typedef struct _GstNokiaFramedAudioEnc      GstNokiaFramedAudioEnc;

    31 typedef struct _GstNokiaFramedAudioEncClass GstNokiaFramedAudioEncClass;

    32 

    33 typedef GstNokiaFramedAudioEnc      GstFramedAudioEnc;

    34 typedef GstNokiaFramedAudioEncClass GstFramedAudioEncClass;

    35 

    36 struct _GstNokiaFramedAudioEnc

    37 {

    38   /* helper for this element */

    39   GstElement *element;

    40 

    41   /* private stuff */

    42 

    43   /* pad with incoming data */

    44   GstPad *sinkpad;

    45 

    46   GstAdapter *adapter;

    47   GstClockTime next_ts;

    48 };

    49 

    50 typedef enum _GstDtxDecision {

    51   GST_DTX_DECISION_VOICE,

    52   GST_DTX_DECISION_SID_UPDATE,

    53   GST_DTX_DECISION_SID_NONE

    54 } GstDtxDecision;

    55 

    56 void      gst_framed_audio_enc_init (GstFramedAudioEnc * enc, GstElement * element,

    57           GstDebugCategory * cat);

    58 void      gst_framed_audio_enc_reset (GstFramedAudioEnc * enc);

    59 void      gst_framed_audio_enc_finalize (GstFramedAudioEnc * enc);

    60 GstPad *  gst_framed_audio_enc_request_new_pad (GstFramedAudioEnc * enc,

    61           GstPadTemplate * templ, const gchar * req_name, GstPad ** pad_p);

    62 void      gst_framed_audio_enc_release_pad (GstFramedAudioEnc * enc, GstPad * pad,

    63           GstPad ** pad_p, void (disable_cn) (GstElement *));

    64 gboolean  gst_framed_audio_enc_sink_event (GstPad * pad, GstEvent * event);

    65 

    66 G_END_DECLS

    67 

    68 #endif /* __GST_FRAMED_AUDIO_ENC_H__ */