/**
 * @file   rtp/audio_decoders.h
 * @author Martin Pulec     <pulec@cesnet.cz>
 */
/*
 * Copyright (c) 2012-2024 CESNET
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
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 *    used to endorse or promote products derived from this software without
 *    specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESSED 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 AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef RTP_AUDIO_DECODERS_H_54DFB935_A1FC_48EF_A375_A044581B869F
#define RTP_AUDIO_DECODERS_H_54DFB935_A1FC_48EF_A375_A044581B869F

#ifdef __cplusplus
#include <cstddef>   // for size_t
#include <cstdint>   // for uint32_t
extern "C" {
#else
#include <stdbool.h> // for bool
#include <stddef.h>  // for size_t
#include <stdint.h>  // for uint32_t
#endif

struct audio_desc;
struct coded_data;
struct module;
struct pbuf_stats;

typedef bool (*audio_playback_ctl_t)(void *state, int request, void *data, size_t *len);

int decode_audio_frame(struct coded_data *cdata, void *data, struct pbuf_stats *stats);
int decode_audio_frame_mulaw(struct coded_data *cdata, void *data, struct pbuf_stats *stats);
void *audio_decoder_init(char *audio_channel_map, const char *audio_scale,
                const char *encryption, audio_playback_ctl_t c, void *ap_state,
                struct module *parent);
void audio_decoder_destroy(void *state);
void audio_decoder_set_volume(void *state, double val);

bool parse_audio_hdr(uint32_t *hdr, struct audio_desc *desc);

#define MSG_UNIVERSAL_TAG_AUDIO_DECODER "ADEC "
#define ADEC_CH_RATE_SHIFT (32LLU)

#ifdef __cplusplus
}
#endif

#endif // defined RTP_AUDIO_DECODERS_H_54DFB935_A1FC_48EF_A375_A044581B869F
