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a576814553
LDAC is an audio coding technology developed by Sony that enables the transmission of High-Resolution (Hi-Res) audio contents over Bluetooth. Currently Adaptive Bit Rate (ABR) as supported by libldac encoder is not implemented. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1621>
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/* GStreamer LDAC audio encoder
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* Copyright (C) 2020 Asymptotic <sanchayan@asymptotic.io>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#include <ldac/ldacBT.h>
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G_BEGIN_DECLS
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#define GST_TYPE_LDAC_ENC \
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(gst_ldac_enc_get_type())
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#define GST_LDAC_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LDAC_ENC,GstLdacEnc))
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#define GST_LDAC_ENC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_LDAC_ENC,GstLdacEncClass))
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#define GST_IS_LDAC_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LDAC_ENC))
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#define GST_IS_LDAC_ENC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_LDAC_ENC))
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typedef struct _GstLdacEnc GstLdacEnc;
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typedef struct _GstLdacEncClass GstLdacEncClass;
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typedef enum
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{
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GST_LDAC_EQMID_HQ = 0,
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GST_LDAC_EQMID_SQ,
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GST_LDAC_EQMID_MQ
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} GstLdacEqmid;
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struct _GstLdacEnc {
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GstAudioEncoder audio_encoder;
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GstLdacEqmid eqmid;
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guint rate;
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guint channels;
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guint channel_mode;
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gboolean init_done;
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LDACBT_SMPL_FMT_T ldac_fmt;
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HANDLE_LDAC_BT ldac;
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};
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struct _GstLdacEncClass {
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GstAudioEncoderClass audio_encoder_class;
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};
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GType gst_ldac_enc_get_type (void);
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G_END_DECLS
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