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/***
This file is part of PulseAudio.
Copyright (C) 2020 Asymptotic <sanchayan@asymptotic.io>
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
PulseAudio 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
General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#include <gst/gst.h>
#include <gst/app/gstappsrc.h>
#include <gst/app/gstappsink.h>
#include <gst/base/gstadapter.h>
#include <pulsecore/fdsem.h>
enum a2dp_codec_type {
AAC = 0,
APTX,
APTX_HD,
LDAC_EQMID_HQ,
LDAC_EQMID_SQ,
LDAC_EQMID_MQ
};
struct gst_info {
pa_core *core;
pa_sample_spec *ss;
enum a2dp_codec_type codec_type;
union {
const a2dp_aac_t *aac_config;
const a2dp_aptx_t *aptx_config;
const a2dp_aptx_hd_t *aptx_hd_config;
const a2dp_ldac_t *ldac_config;
} a2dp_codec_t;
/* The appsink element that accumulates encoded/decoded buffers */
GstElement *app_sink;
GstElement *bin;
/* The sink pad to push to-be-encoded/decoded buffers into */
GstPad *pad_sink;
uint16_t seq_num;
};
bool gst_codec_init(struct gst_info *info, bool for_encoding, GstElement *transcoder);
size_t gst_transcode_buffer(void *codec_info, const uint8_t *input_buffer, size_t input_size, uint8_t *output_buffer, size_t output_size, size_t *processed);
void gst_codec_deinit(void *codec_info);
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