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/*
* Copyright 2018 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.
*/
#define LOG_TAG "BTAudioProviderSessionCodecsDB_2_1"
#include "BluetoothAudioSupportedCodecsDB_2_1.h"
#include <android-base/logging.h>
namespace android {
namespace bluetooth {
namespace audio {
using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
using SampleRate_2_0 = ::android::hardware::bluetooth::audio::V2_0::SampleRate;
using SampleRate_2_1 = ::android::hardware::bluetooth::audio::V2_1::SampleRate;
using SessionType_2_1 =
::android::hardware::bluetooth::audio::V2_1::SessionType;
using SessionType_2_0 =
::android::hardware::bluetooth::audio::V2_0::SessionType;
namespace {
bool is_2_0_session_type(
const ::android::hardware::bluetooth::audio::V2_1::SessionType&
session_type) {
if (session_type == SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
session_type == SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH ||
session_type == SessionType_2_1::HEARING_AID_SOFTWARE_ENCODING_DATAPATH) {
return true;
} else {
return false;
}
}
} // namespace
static const ::android::hardware::bluetooth::audio::V2_1::PcmParameters
kDefaultSoftwarePcmCapabilities_2_1 = {
.sampleRate = static_cast<SampleRate_2_1>(
SampleRate_2_1::RATE_44100 | SampleRate_2_1::RATE_48000 |
SampleRate_2_1::RATE_88200 | SampleRate_2_1::RATE_96000 |
SampleRate_2_1::RATE_16000 | SampleRate_2_1::RATE_24000),
.channelMode =
static_cast<ChannelMode>(ChannelMode::MONO | ChannelMode::STEREO),
.bitsPerSample = static_cast<BitsPerSample>(BitsPerSample::BITS_16 |
BitsPerSample::BITS_24 |
BitsPerSample::BITS_32)};
std::vector<::android::hardware::bluetooth::audio::V2_1::PcmParameters>
GetSoftwarePcmCapabilities_2_1() {
return std::vector<
::android::hardware::bluetooth::audio::V2_1::PcmParameters>(
1, kDefaultSoftwarePcmCapabilities_2_1);
}
std::vector<CodecCapabilities> GetOffloadCodecCapabilities(
const ::android::hardware::bluetooth::audio::V2_1::SessionType&
session_type) {
if (is_2_0_session_type(session_type)) {
return GetOffloadCodecCapabilities(
static_cast<SessionType_2_0>(session_type));
}
return std::vector<CodecCapabilities>(0);
}
bool IsSoftwarePcmConfigurationValid_2_1(
const ::android::hardware::bluetooth::audio::V2_1::PcmParameters&
pcm_config) {
if ((pcm_config.sampleRate != SampleRate_2_1::RATE_44100 &&
pcm_config.sampleRate != SampleRate_2_1::RATE_48000 &&
pcm_config.sampleRate != SampleRate_2_1::RATE_88200 &&
pcm_config.sampleRate != SampleRate_2_1::RATE_96000 &&
pcm_config.sampleRate != SampleRate_2_1::RATE_16000 &&
pcm_config.sampleRate != SampleRate_2_1::RATE_24000) ||
(pcm_config.bitsPerSample != BitsPerSample::BITS_16 &&
pcm_config.bitsPerSample != BitsPerSample::BITS_24 &&
pcm_config.bitsPerSample != BitsPerSample::BITS_32) ||
(pcm_config.channelMode != ChannelMode::MONO &&
pcm_config.channelMode != ChannelMode::STEREO)) {
LOG(WARNING) << __func__
<< ": Invalid PCM Configuration=" << toString(pcm_config);
return false;
} else if (pcm_config.sampleRate &
kDefaultSoftwarePcmCapabilities_2_1.sampleRate &&
pcm_config.bitsPerSample &
kDefaultSoftwarePcmCapabilities_2_1.bitsPerSample &&
pcm_config.channelMode &
kDefaultSoftwarePcmCapabilities_2_1.channelMode &&
pcm_config.dataIntervalUs != 0) {
return true;
}
LOG(WARNING) << __func__
<< ": Unsupported PCM Configuration=" << toString(pcm_config);
return false;
}
bool IsOffloadCodecConfigurationValid(
const ::android::hardware::bluetooth::audio::V2_1::SessionType&
session_type,
const ::android::hardware::bluetooth::audio::V2_0::CodecConfiguration&
codec_config) {
if (is_2_0_session_type(session_type)) {
return IsOffloadCodecConfigurationValid(
static_cast<SessionType_2_0>(session_type), codec_config);
}
return false;
}
bool IsOffloadLeAudioConfigurationValid(
const ::android::hardware::bluetooth::audio::V2_1::SessionType&
session_type,
const ::android::hardware::bluetooth::audio::V2_1::Lc3CodecConfiguration&) {
if (session_type != SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
session_type != SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
return false;
}
//TODO: perform checks on le_audio_codec_config once we know supported parameters
return true;
}
} // namespace audio
} // namespace bluetooth
} // namespace android
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