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+/******************************************************************************
+ *
+ * Copyright (C) 2004-2012 Broadcom 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.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * This is the interface to utility functions for dealing with SBC data
+ * frames and codec capabilities.
+ *
+ ******************************************************************************/
+#ifndef BTA_AV_SBC_H
+#define BTA_AV_SBC_H
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* SBC packet header size */
+#define BTA_AV_SBC_HDR_SIZE A2D_SBC_MPL_HDR_LEN
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_init_up_sample
+**
+** Description initialize the up sample
+**
+** src_sps: samples per second (source audio data)
+** dst_sps: samples per second (converted audio data)
+** bits: number of bits per pcm sample
+** n_channels: number of channels (i.e. mono(1), stereo(2)...)
+**
+** Returns none
+**
+*******************************************************************************/
+extern void bta_av_sbc_init_up_sample (UINT32 src_sps, UINT32 dst_sps,
+ UINT16 bits, UINT16 n_channels);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_up_sample
+**
+** Description Given the source (p_src) audio data and
+** source speed (src_sps, samples per second),
+** This function converts it to audio data in the desired format
+**
+** p_src: the data buffer that holds the source audio data
+** p_dst: the data buffer to hold the converted audio data
+** src_samples: The number of source samples (number of bytes)
+** dst_samples: The size of p_dst (number of bytes)
+**
+** Note: An AE reported an issue with this function.
+** When called with bta_av_sbc_up_sample(src, uint8_array_dst..)
+** the byte before uint8_array_dst may get overwritten.
+** Using uint16_array_dst avoids the problem.
+** This issue is related to endian-ness and is hard to resolve
+** in a generic manner.
+** **************** Please use uint16 array as dst.
+**
+** Returns The number of bytes used in p_dst
+** The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample (void *p_src, void *p_dst,
+ UINT32 src_samples, UINT32 dst_samples,
+ UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_up_sample_16s (16bits-stereo)
+**
+** Description Given the source (p_src) audio data and
+** source speed (src_sps, samples per second),
+** This function converts it to audio data in the desired format
+**
+** p_src: the data buffer that holds the source audio data
+** p_dst: the data buffer to hold the converted audio data
+** src_samples: The number of source samples (in uint of 4 bytes)
+** dst_samples: The size of p_dst (in uint of 4 bytes)
+**
+** Returns The number of bytes used in p_dst
+** The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_16s (void *p_src, void *p_dst,
+ UINT32 src_samples, UINT32 dst_samples,
+ UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_up_sample_16m (16bits-mono)
+**
+** Description Given the source (p_src) audio data and
+** source speed (src_sps, samples per second),
+** This function converts it to audio data in the desired format
+**
+** p_src: the data buffer that holds the source audio data
+** p_dst: the data buffer to hold the converted audio data
+** src_samples: The number of source samples (in uint of 2 bytes)
+** dst_samples: The size of p_dst (in uint of 2 bytes)
+**
+** Returns The number of bytes used in p_dst
+** The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_16m (void *p_src, void *p_dst,
+ UINT32 src_samples, UINT32 dst_samples,
+ UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_up_sample_8s (8bits-stereo)
+**
+** Description Given the source (p_src) audio data and
+** source speed (src_sps, samples per second),
+** This function converts it to audio data in the desired format
+**
+** p_src: the data buffer that holds the source audio data
+** p_dst: the data buffer to hold the converted audio data
+** src_samples: The number of source samples (in uint of 2 bytes)
+** dst_samples: The size of p_dst (in uint of 2 bytes)
+**
+** Returns The number of bytes used in p_dst
+** The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_8s (void *p_src, void *p_dst,
+ UINT32 src_samples, UINT32 dst_samples,
+ UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_up_sample_8m (8bits-mono)
+**
+** Description Given the source (p_src) audio data and
+** source speed (src_sps, samples per second),
+** This function converts it to audio data in the desired format
+**
+** p_src: the data buffer that holds the source audio data
+** p_dst: the data buffer to hold the converted audio data
+** src_samples: The number of source samples (number of bytes)
+** dst_samples: The size of p_dst (number of bytes)
+**
+** Returns The number of bytes used in p_dst
+** The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_8m (void *p_src, void *p_dst,
+ UINT32 src_samples, UINT32 dst_samples,
+ UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_cfg_for_cap
+**
+** Description Determine the preferred SBC codec configuration for the
+** given codec capabilities. The function is passed the
+** preferred codec configuration and the peer codec
+** capabilities for the stream. The function attempts to
+** match the preferred capabilities with the configuration
+** as best it can. The resulting codec configuration is
+** returned in the same memory used for the capabilities.
+**
+** Returns 0 if ok, nonzero if error.
+** Codec configuration in p_cap.
+**
+*******************************************************************************/
+extern UINT8 bta_av_sbc_cfg_for_cap(UINT8 *p_peer, tA2D_SBC_CIE *p_cap, tA2D_SBC_CIE *p_pref);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_cfg_in_cap
+**
+** Description This function checks whether an SBC codec configuration
+** is allowable for the given codec capabilities.
+**
+** Returns 0 if ok, nonzero if error.
+**
+*******************************************************************************/
+extern UINT8 bta_av_sbc_cfg_in_cap(UINT8 *p_cfg, tA2D_SBC_CIE *p_cap);
+
+/*******************************************************************************
+**
+** Function bta_av_sbc_bld_hdr
+**
+** Description This function builds the packet header for MPF1.
+**
+** Returns void
+**
+*******************************************************************************/
+extern void bta_av_sbc_bld_hdr(BT_HDR *p_buf, UINT16 fr_per_pkt);
+
+#endif /* BTA_AV_SBC_H */
+
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