cras/src/common/cras_sbc_codec.h

/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef COMMON_CRAS_SBC_CODEC_H_
#define COMMON_CRAS_SBC_CODEC_H_

#include <sbc/sbc.h>

#include "cras_audio_codec.h"

/* Creates an sbc codec.
 * Args:
 *    freq: frequency for sbc encoder settings.
 *    mode: mode for sbc encoder settings.
 *    subbands: subbands for sbc encoder settings.
 *    alloc: allocation method for sbc encoder settings.
 *    blocks: blocks for sbc encoder settings.
 *    bitpool: bitpool for sbc encoder settings.
 */
struct cras_audio_codec *cras_sbc_codec_create(uint8_t freq, uint8_t mode,
					       uint8_t subbands, uint8_t alloc,
					       uint8_t blocks, uint8_t bitpool);

/* Creates an mSBC codec, which is a version of SBC codec used for
 * wideband speech mode of HFP. */
struct cras_audio_codec *cras_msbc_codec_create();

/* Destroys an sbc codec.
 * Args:
 *    codec: the codec to destroy.
 */
void cras_sbc_codec_destroy(struct cras_audio_codec *codec);

/* Gets codesize, the input block size of sbc codec in bytes.
 */
int cras_sbc_get_codesize(struct cras_audio_codec *codec);

/* Gets frame_length, the output block size of sbc codec in bytes.
 */
int cras_sbc_get_frame_length(struct cras_audio_codec *codec);

#endif /* COMMON_CRAS_SBC_CODEC_H_ */