/*

 * Copyright (C) 2013 Intel Corporation

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 */

#include <time.h>

#include <hardware/audio.h>

#if __BYTE_ORDER == __LITTLE_ENDIAN

struct rtp_header {

	unsigned cc:4;

	unsigned x:1;

	unsigned p:1;

	unsigned v:2;

	unsigned pt:7;

	unsigned m:1;

	uint16_t sequence_number;

	uint32_t timestamp;

	uint32_t ssrc;

	uint32_t csrc[0];

} __attribute__ ((packed));

#elif __BYTE_ORDER == __BIG_ENDIAN

struct rtp_header {

	unsigned v:2;

	unsigned p:1;

	unsigned x:1;

	unsigned cc:4;

	unsigned m:1;

	unsigned pt:7;

	uint16_t sequence_number;

	uint32_t timestamp;

	uint32_t ssrc;

	uint32_t csrc[0];

} __attribute__ ((packed));

#else

#error "Unknown byte order"

#endif

struct media_packet {

	uint8_t data[0];

};

struct media_packet_rtp {

	struct rtp_header hdr;

	uint8_t data[0];

};

struct audio_input_config {

	uint32_t rate;

	uint32_t channels;

	audio_format_t format;

};

struct audio_codec {

	uint8_t type;

	bool use_rtp;

	bool (*load) (void);

	void (*unload) (void);

	int (*get_presets) (struct audio_preset *preset, size_t *len);

	bool (*init) (struct audio_preset *preset, uint16_t mtu,

				void **codec_data);

	bool (*cleanup) (void *codec_data);

	bool (*get_config) (void *codec_data,

					struct audio_input_config *config);

	size_t (*get_buffer_size) (void *codec_data);

	size_t (*get_mediapacket_duration) (void *codec_data);

	ssize_t (*encode_mediapacket) (void *codec_data, const uint8_t *buffer,

					size_t len, struct media_packet *mp,

					size_t mp_data_len, size_t *written);

	bool (*update_qos) (void *codec_data, uint8_t op);

};

#define QOS_POLICY_DEFAULT	0x00

#define QOS_POLICY_DECREASE	0x01

typedef const struct audio_codec * (*audio_codec_get_t) (void);

const struct audio_codec *codec_sbc(void);

const struct audio_codec *codec_aptx(void);