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// Copyright 2018-2021 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#ifndef MUMBLE_MUMBLE_OPUSCODEC_H_
#define MUMBLE_MUMBLE_OPUSCODEC_H_
#include <opus.h>
#include <QtCore/QLibrary>
#ifndef Q_OS_WIN
# define __cdecl
#endif
/// Loads Opus from a shared library and acts as a wrapper for its functions.
class OpusCodec {
private:
Q_DISABLE_COPY(OpusCodec)
protected:
QLibrary qlOpus;
bool bValid;
public:
OpusCodec();
virtual ~OpusCodec();
bool isValid() const;
void report() const;
const char *(__cdecl *opus_get_version_string)();
OpusEncoder *(__cdecl *opus_encoder_create)(opus_int32 Fs, int channels, int application, int *error);
int(__cdecl *opus_encoder_ctl)(OpusEncoder *st, int request, ...);
void(__cdecl *opus_encoder_destroy)(OpusEncoder *st);
OpusDecoder *(__cdecl *opus_decoder_create)(opus_int32 Fs, int channels, int *error);
int(__cdecl *opus_decoder_ctl)(OpusDecoder *st, int request, ...);
void(__cdecl *opus_decoder_destroy)(OpusDecoder *st);
int(__cdecl *opus_encode)(OpusEncoder *st, const opus_int16 *pcm, int frame_size, unsigned char *compressed,
int nbCompressedBytes);
int(__cdecl *opus_decode_float)(OpusDecoder *st, const unsigned char *data, opus_int32 len, float *pcm,
int frame_size, int decode_fec);
int(__cdecl *opus_decoder_get_nb_samples)(OpusDecoder *st, const unsigned char packet[], opus_int32 len);
int(__cdecl *opus_packet_get_samples_per_frame)(const unsigned char *data, opus_int32 Fs);
};
#endif // OPUSCODEC_H_
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