/* Copyright (c) 2011-2012 IETF Trust, Xiph.Org Foundation. All rights reserved.
   Written by Jean-Marc Valin */
/*

   This file is extracted from RFC6716. Please see that RFC for additional
   information.

   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
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   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_PRIVATE_H
#define OPUS_PRIVATE_H

#include "arch.h"
#include "opus.h"

struct OpusRepacketizer {
   unsigned char toc;
   int nb_frames;
   const unsigned char *frames[48];
   short len[48];
   int framesize;
};


#define MODE_SILK_ONLY          1000
#define MODE_HYBRID             1001
#define MODE_CELT_ONLY          1002

#define OPUS_SET_VOICE_RATIO_REQUEST         11018
#define OPUS_GET_VOICE_RATIO_REQUEST         11019

/** Configures the encoder's expected percentage of voice
  * opposed to music or other signals.
  *
  * @note This interface is currently more aspiration than actuality. It's
  * ultimately expected to bias an automatic signal classifier, but it currently
  * just shifts the static bitrate to mode mapping around a little bit.
  *
  * @param[in] x <tt>int</tt>:   Voice percentage in the range 0-100, inclusive.
  * @hideinitializer */
#define OPUS_SET_VOICE_RATIO(x) OPUS_SET_VOICE_RATIO_REQUEST, __opus_check_int(x)
/** Gets the encoder's configured voice ratio value, @see OPUS_SET_VOICE_RATIO
  *
  * @param[out] x <tt>int*</tt>:  Voice percentage in the range 0-100, inclusive.
  * @hideinitializer */
#define OPUS_GET_VOICE_RATIO(x) OPUS_GET_VOICE_RATIO_REQUEST, __opus_check_int_ptr(x)


#define OPUS_SET_FORCE_MODE_REQUEST    11002
#define OPUS_SET_FORCE_MODE(x) OPUS_SET_FORCE_MODE_REQUEST, __opus_check_int(x)


int encode_size(int size, unsigned char *data);

int opus_decode_native(OpusDecoder *st, const unsigned char *data, int len,
      opus_val16 *pcm, int frame_size, int decode_fec, int self_delimited, int *packet_offset);

/* Make sure everything's aligned to sizeof(void *) bytes */
static inline int align(int i)
{
    return (i+sizeof(void *)-1)&-sizeof(void *);
}

int opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end, unsigned char *data, int maxlen, int self_delimited);

#endif /* OPUS_PRIVATE_H */
