opus.h

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/* Copyright (c) 2010-2011 Xiph.Org Foundation, Skype Limited
   Written by Jean-Marc Valin and Koen Vos */
/*
   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:

   - Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

   - Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

   - Neither the name of Internet Society, IETF or IETF Trust, nor the
   names of specific contributors, may be used to endorse or promote
   products derived from this software without specific prior written
   permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef OPUS_H
#define OPUS_H

#include "opus_types.h"
#include "opus_defines.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct OpusEncoder OpusEncoder;

OPUS_EXPORT int opus_encoder_get_size(int channels);

OPUS_EXPORT OpusEncoder *opus_encoder_create(
    opus_int32 Fs,
    int channels,
    int application,
    int *error
);

OPUS_EXPORT int opus_encoder_init(
    OpusEncoder *st,
    opus_int32 Fs,
    int channels,
    int application
);

OPUS_EXPORT int opus_encode(
    OpusEncoder *st,
    const opus_int16 *pcm,
    int frame_size,
    unsigned char *data,
    int max_data_bytes
);

OPUS_EXPORT int opus_encode_float(
    OpusEncoder *st,
    const float *pcm,
    int frame_size,
    unsigned char *data,
    int max_data_bytes
);

OPUS_EXPORT void opus_encoder_destroy(OpusEncoder *st);

OPUS_EXPORT int opus_encoder_ctl(OpusEncoder *st, int request, ...);
typedef struct OpusDecoder OpusDecoder;

OPUS_EXPORT int opus_decoder_get_size(int channels);

OPUS_EXPORT OpusDecoder *opus_decoder_create(
    opus_int32 Fs,
    int channels,
    int *error
);

OPUS_EXPORT int opus_decoder_init(
    OpusDecoder *st,
    opus_int32 Fs,
    int channels
);

OPUS_EXPORT int opus_decode(
    OpusDecoder *st,
    const unsigned char *data,
    int len,
    opus_int16 *pcm,
    int frame_size,
    int decode_fec
);

OPUS_EXPORT int opus_decode_float(
    OpusDecoder *st,
    const unsigned char *data,
    int len,
    float *pcm,
    int frame_size,
    int decode_fec
);

OPUS_EXPORT int opus_decoder_ctl(OpusDecoder *st, int request, ...);

OPUS_EXPORT void opus_decoder_destroy(OpusDecoder *st);

OPUS_EXPORT int opus_packet_parse(
   const unsigned char *data,
   int len,
   unsigned char *out_toc,
   const unsigned char *frames[48],
   short size[48],
   int *payload_offset
);

OPUS_EXPORT int opus_packet_get_bandwidth(const unsigned char *data);

OPUS_EXPORT int opus_packet_get_samples_per_frame(const unsigned char *data, opus_int32 Fs);

OPUS_EXPORT int opus_packet_get_nb_channels(const unsigned char *data);

OPUS_EXPORT int opus_packet_get_nb_frames(const unsigned char packet[], int len);

OPUS_EXPORT int opus_decoder_get_nb_samples(const OpusDecoder *dec, const unsigned char packet[], int len);
typedef struct OpusRepacketizer OpusRepacketizer;

OPUS_EXPORT int opus_repacketizer_get_size(void);

OPUS_EXPORT OpusRepacketizer *opus_repacketizer_init(OpusRepacketizer *rp);

OPUS_EXPORT OpusRepacketizer *opus_repacketizer_create(void);

OPUS_EXPORT void opus_repacketizer_destroy(OpusRepacketizer *rp);

OPUS_EXPORT int opus_repacketizer_cat(OpusRepacketizer *rp, const unsigned char *data, int len);

OPUS_EXPORT opus_int32 opus_repacketizer_out_range(OpusRepacketizer *rp, int begin, int end, unsigned char *data, int maxlen);

OPUS_EXPORT int opus_repacketizer_get_nb_frames(OpusRepacketizer *rp);

OPUS_EXPORT opus_int32 opus_repacketizer_out(OpusRepacketizer *rp, unsigned char *data, int maxlen);

#ifdef __cplusplus
}
#endif

#endif /* OPUS_H */