/* 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__ */