/*
|
* Copyright 2016 The Android Open Source Project
|
*
|
* 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.
|
*/
|
|
//
|
// Vendor Specific A2DP Codecs Support
|
//
|
|
#ifndef A2DP_VENDOR_H
|
#define A2DP_VENDOR_H
|
|
#include <stdbool.h>
|
#include "a2dp_codec_api.h"
|
|
/* Offset for A2DP vendor codec */
|
#define A2DP_VENDOR_CODEC_START_IDX 3
|
|
/* Offset for Vendor ID for A2DP vendor codec */
|
#define A2DP_VENDOR_CODEC_VENDOR_ID_START_IDX A2DP_VENDOR_CODEC_START_IDX
|
|
/* Offset for Codec ID for A2DP vendor codec */
|
#define A2DP_VENDOR_CODEC_CODEC_ID_START_IDX \
|
(A2DP_VENDOR_CODEC_VENDOR_ID_START_IDX + sizeof(uint32_t))
|
|
// Checks whether the codec capabilities contain a valid A2DP vendor-specific
|
// Source codec.
|
// NOTE: only codecs that are implemented are considered valid.
|
// Returns true if |p_codec_info| contains information about a valid
|
// vendor-specific codec, otherwise false.
|
bool A2DP_IsVendorSourceCodecValid(const uint8_t* p_codec_info);
|
|
// Checks whether the codec capabilities contain a valid A2DP vendor-specific
|
// Sink codec.
|
// NOTE: only codecs that are implemented are considered valid.
|
// Returns true if |p_codec_info| contains information about a valid
|
// vendor-specific codec, otherwise false.
|
bool A2DP_IsVendorSinkCodecValid(const uint8_t* p_codec_info);
|
|
// Checks whether the codec capabilities contain a valid peer A2DP
|
// vendor-specific Source codec.
|
// NOTE: only codecs that are implemented are considered valid.
|
// Returns true if |p_codec_info| contains information about a valid
|
// vendor-specific codec, otherwise false.
|
bool A2DP_IsVendorPeerSourceCodecValid(const uint8_t* p_codec_info);
|
|
// Checks whether the codec capabilities contain a valid peer A2DP
|
// vendor-specific Sink codec.
|
// NOTE: only codecs that are implemented are considered valid.
|
// Returns true if |p_codec_info| contains information about a valid
|
// vendor-specific codec, otherwise false.
|
bool A2DP_IsVendorPeerSinkCodecValid(const uint8_t* p_codec_info);
|
|
// Checks whether a vendor-specific A2DP Sink codec is supported.
|
// |p_codec_info| contains information about the codec capabilities.
|
// Returns true if the vendor-specific A2DP Sink codec is supported,
|
// otherwise false.
|
bool A2DP_IsVendorSinkCodecSupported(const uint8_t* p_codec_info);
|
|
// Checks whether a vendor-specific A2DP Source codec for a peer Source device
|
// is supported.
|
// |p_codec_info| contains information about the codec capabilities of the
|
// peer device.
|
// Returns true if the vendor-specific A2DP Source codec for a peer Source
|
// device is supported, otherwise false.
|
bool A2DP_IsVendorPeerSourceCodecSupported(const uint8_t* p_codec_info);
|
|
// Gets the Vendor ID for the vendor-specific A2DP codec.
|
// |p_codec_info| contains information about the codec capabilities.
|
// Returns the Vendor ID for the vendor-specific A2DP codec.
|
uint32_t A2DP_VendorCodecGetVendorId(const uint8_t* p_codec_info);
|
|
// Gets the Codec ID for the vendor-specific A2DP codec.
|
// |p_codec_info| contains information about the codec capabilities.
|
// Returns the Codec ID for the vendor-specific A2DP codec.
|
uint16_t A2DP_VendorCodecGetCodecId(const uint8_t* p_codec_info);
|
|
// Checks whether the A2DP vendor-specific data packets should contain RTP
|
// header. |content_protection_enabled| is true if Content Protection is
|
// enabled. |p_codec_info| contains information about the codec capabilities.
|
// Returns true if the A2DP vendor-specific data packets should contain RTP
|
// header, otherwise false.
|
bool A2DP_VendorUsesRtpHeader(bool content_protection_enabled,
|
const uint8_t* p_codec_info);
|
|
// Gets the A2DP vendor-specific codec name for a given |p_codec_info|.
|
const char* A2DP_VendorCodecName(const uint8_t* p_codec_info);
|
|
// Checks whether two A2DP vendor-specific codecs |p_codec_info_a| and
|
// |p_codec_info_b| have the same type.
|
// Returns true if the two codecs have the same type, otherwise false.
|
// If the codec type is not recognized, the return value is false.
|
bool A2DP_VendorCodecTypeEquals(const uint8_t* p_codec_info_a,
|
const uint8_t* p_codec_info_b);
|
|
// Checks whether two A2DP vendor-specific codecs |p_codec_info_a| and
|
// |p_codec_info_b| are exactly the same.
|
// Returns true if the two codecs are exactly the same, otherwise false.
|
// If the codec type is not recognized, the return value is false.
|
bool A2DP_VendorCodecEquals(const uint8_t* p_codec_info_a,
|
const uint8_t* p_codec_info_b);
|
|
// Gets the track sample rate value for the A2DP vendor-specific codec.
|
// |p_codec_info| is a pointer to the vendor-specific codec_info to decode.
|
// Returns the track sample rate on success, or -1 if |p_codec_info|
|
// contains invalid codec information.
|
int A2DP_VendorGetTrackSampleRate(const uint8_t* p_codec_info);
|
|
// Gets the track bits per sample value for the A2DP vendor-specific codec.
|
// |p_codec_info| is a pointer to the vendor-specific codec_info to decode.
|
// Returns the track sample rate on success, or -1 if |p_codec_info|
|
// contains invalid codec information.
|
int A2DP_VendorGetTrackBitsPerSample(const uint8_t* p_codec_info);
|
|
// Gets the channel count for the A2DP vendor-specific codec.
|
// |p_codec_info| is a pointer to the vendor-specific codec_info to decode.
|
// Returns the channel count on success, or -1 if |p_codec_info|
|
// contains invalid codec information.
|
int A2DP_VendorGetTrackChannelCount(const uint8_t* p_codec_info);
|
|
// Gets the bitrate for the A2DP vendor-specific codec.
|
// |p_codec_info| is a pointer to the vendor-specific codec_info to decode.
|
// Returns the channel count on success, or -1 if |p_codec_info|
|
// contains invalid codec information.
|
int A2DP_VendorGetBitRate(const uint8_t* p_codec_info);
|
|
// Gets the channel type for the A2DP vendor-specific Sink codec:
|
// 1 for mono, or 3 for dual/stereo/joint.
|
// |p_codec_info| is a pointer to the vendor-specific codec_info to decode.
|
// Returns the channel type on success, or -1 if |p_codec_info|
|
// contains invalid codec information.
|
int A2DP_VendorGetSinkTrackChannelType(const uint8_t* p_codec_info);
|
|
// Gets the A2DP codec-specific audio data timestamp from an audio packet.
|
// |p_codec_info| contains the codec information.
|
// |p_data| contains the audio data.
|
// The timestamp is stored in |p_timestamp|.
|
// Returns true on success, otherwise false.
|
bool A2DP_VendorGetPacketTimestamp(const uint8_t* p_codec_info,
|
const uint8_t* p_data,
|
uint32_t* p_timestamp);
|
|
// Builds A2DP vendor-specific codec header for audio data.
|
// |p_codec_info| contains the codec information.
|
// |p_buf| contains the audio data.
|
// |frames_per_packet| is the number of frames in this packet.
|
// Returns true on success, otherwise false.
|
bool A2DP_VendorBuildCodecHeader(const uint8_t* p_codec_info, BT_HDR* p_buf,
|
uint16_t frames_per_packet);
|
|
// Gets the A2DP vendor encoder interface that can be used to encode and
|
// prepare A2DP packets for transmission - see |tA2DP_ENCODER_INTERFACE|.
|
// |p_codec_info| contains the codec information.
|
// Returns the A2DP vendor encoder interface if the |p_codec_info| is valid and
|
// supported, otherwise NULL.
|
const tA2DP_ENCODER_INTERFACE* A2DP_VendorGetEncoderInterface(
|
const uint8_t* p_codec_info);
|
|
// Gets the current A2DP vendor decoder interface that can be used to decode
|
// received A2DP packets - see |tA2DP_DECODER_INTERFACE|.
|
// |p_codec_info| contains the codec information.
|
// Returns the A2DP vendor decoder interface if the |p_codec_info| is valid and
|
// supported, otherwise NULL.
|
const tA2DP_DECODER_INTERFACE* A2DP_VendorGetDecoderInterface(
|
const uint8_t* p_codec_info);
|
|
// Adjusts the A2DP vendor-specific codec, based on local support and Bluetooth
|
// specification.
|
// |p_codec_info| contains the codec information to adjust.
|
// Returns true if |p_codec_info| is valid and supported, otherwise false.
|
bool A2DP_VendorAdjustCodec(uint8_t* p_codec_info);
|
|
// Gets the A2DP vendor Source codec index for a given |p_codec_info|.
|
// Returns the corresponding |btav_a2dp_codec_index_t| on success,
|
// otherwise |BTAV_A2DP_CODEC_INDEX_MAX|.
|
btav_a2dp_codec_index_t A2DP_VendorSourceCodecIndex(
|
const uint8_t* p_codec_info);
|
|
// Gets the A2DP vendor Sink codec index for a given |p_codec_info|.
|
// Returns the corresponding |btav_a2dp_codec_index_t| on success,
|
// otherwise |BTAV_A2DP_CODEC_INDEX_MAX|.
|
btav_a2dp_codec_index_t A2DP_VendorSinkCodecIndex(const uint8_t* p_codec_info);
|
|
// Gets the A2DP vendor codec name for a given |codec_index|.
|
const char* A2DP_VendorCodecIndexStr(btav_a2dp_codec_index_t codec_index);
|
|
// Initializes A2DP vendor codec-specific information into |AvdtpSepConfig|
|
// configuration entry pointed by |p_cfg|. The selected codec is defined by
|
// |codec_index|.
|
// Returns true on success, otherwise false.
|
bool A2DP_VendorInitCodecConfig(btav_a2dp_codec_index_t codec_index,
|
AvdtpSepConfig* p_cfg);
|
|
// Decodes A2DP vendor codec info into a human readable string.
|
// |p_codec_info| is a pointer to the codec_info to decode.
|
// Returns a string describing the codec information.
|
std::string A2DP_VendorCodecInfoString(const uint8_t* p_codec_info);
|
|
#endif // A2DP_VENDOR_H
|
