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91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
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/*
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* Copyright (C) 2024 Piotr Brzeziński <piotr@centricular.com>
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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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GST_ATENC_H_
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#define _GST_ATENC_H_
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#include <AudioToolbox/AudioToolbox.h>
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#include <gst/gst.h>
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#include <gst/audio/gstaudioencoder.h>
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#include <gst/pbutils/codec-utils.h>
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#include <gst/base/gstbytereader.h>
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#include <gst/base/gstqueuearray.h>
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#include "gstosxcoreaudiocommon.h"
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G_BEGIN_DECLS
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#define GST_TYPE_ATENC (gst_atenc_get_type())
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#define GST_ATENC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ATENC,GstATEnc))
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#define GST_ATENC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ATENC,GstATEncClass))
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#define GST_IS_ATENC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ATENC))
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#define GST_IS_ATENC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ATENC))
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typedef struct _GstATEnc GstATEnc;
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typedef struct _GstATEncClass GstATEncClass;
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/**
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* GstATEncRateControl:
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* @GST_ATENC_RATE_CONTROL_CONSTANT: Constant bitrate
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* @GST_ATENC_RATE_CONTROL_LONG_TERM_AVERAGE: Long-term-average bitrate
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* @GST_ATENC_RATE_CONTROL_VARIABLE_CONSTRAINED: Variable constrained bitrate
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* @GST_ATENC_RATE_CONTROL_VARIABLE: Variable bitrate
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*
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* Since: 1.26
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*/
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typedef enum
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{
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GST_ATENC_RATE_CONTROL_CONSTANT = 0,
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GST_ATENC_RATE_CONTROL_LONG_TERM_AVERAGE = 1,
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GST_ATENC_RATE_CONTROL_VARIABLE_CONSTRAINED = 2,
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GST_ATENC_RATE_CONTROL_VARIABLE = 3,
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} GstATEncRateControl;
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typedef struct
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{
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gint channels;
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AudioChannelLayoutTag aac_tag;
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GstAudioChannelPosition positions[8];
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} GstATEncLayout;
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struct _GstATEnc
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{
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GstAudioEncoder encoder;
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AudioConverterRef converter;
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UInt32 max_output_buffer_size;
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UInt32 n_output_samples;
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GstQueueArray *input_queue;
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GstAudioBuffer *used_buffer;
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gboolean input_eos;
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GstATEncRateControl rate_control;
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guint32 bitrate;
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guint32 vbr_quality;
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};
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struct _GstATEncClass
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{
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GstAudioEncoderClass encoder_class;
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};
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GType gst_atenc_get_type (void);
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GST_ELEMENT_REGISTER_DECLARE (atenc);
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G_END_DECLS
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#endif
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