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/* GStreamer Opus Encoder
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2008> Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) <2011-2012> Vincent Penquerc'h <vincent.penquerch@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_OPUS_ENC_H__
#define __GST_OPUS_ENC_H__
#include <gst/gst.h>
#include <gst/audio/gstaudioencoder.h>
#include <opus_multistream.h>
G_BEGIN_DECLS
#define GST_TYPE_OPUS_ENC \
(gst_opus_enc_get_type())
#define GST_OPUS_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPUS_ENC,GstOpusEnc))
#define GST_OPUS_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPUS_ENC,GstOpusEncClass))
#define GST_IS_OPUS_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPUS_ENC))
#define GST_IS_OPUS_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPUS_ENC))
#define MAX_FRAME_SIZE 2000*2
#define MAX_FRAME_BYTES 2000
typedef enum
{
BITRATE_TYPE_CBR,
BITRATE_TYPE_VBR,
BITRATE_TYPE_CONSTRAINED_VBR,
} GstOpusEncBitrateType;
typedef struct _GstOpusEnc GstOpusEnc;
typedef struct _GstOpusEncClass GstOpusEncClass;
struct _GstOpusEnc {
GstAudioEncoder element;
OpusMSEncoder *state;
/* Locks those properties which may be changed at play time */
GMutex property_lock;
/* properties */
gint audio_type;
gint bitrate;
gint bandwidth;
gint frame_size;
GstOpusEncBitrateType bitrate_type;
gint complexity;
gboolean inband_fec;
gboolean dtx;
gint packet_loss_percentage;
guint max_payload_size;
gint frame_samples;
gint n_channels;
gint sample_rate;
guint64 encoded_samples;
guint8 channel_mapping_family;
guint8 encoding_channel_mapping[256];
guint8 decoding_channel_mapping[256];
guint8 n_stereo_streams;
};
struct _GstOpusEncClass {
GstAudioEncoderClass parent_class;
/* signals */
void (*frame_encoded) (GstElement *element);
};
GType gst_opus_enc_get_type (void);
G_END_DECLS
#endif /* __GST_OPUS_ENC_H__ */
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