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Bluetooth LE Audio: pass the 24 bit stream as unpacked through HAL

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LC3 encoder/decoder expects unpacked 24 bit stream

Bug: 230578655
Test: use 24_2 configuration to play over LE Audio
Change-Id: I298d6d3a0cd9786581730de88487c982e1fa9d9d
This commit is contained in:
Jakub Pawlowski
2022-05-06 09:58:04 +02:00
parent 50ead27609
commit 7230958c05
1 changed files with 7 additions and 3 deletions
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10
bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.cpp
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@@ -91,17 +91,21 @@ ndk::ScopedAStatus LeAudioSoftwareAudioProvider::startSession(
else if (session_type_ == SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH)
buffer_modifier = kBufferInCount;
// 24 bit audio stream is sent as unpacked
int bytes_per_sample =
(pcm_config.bitsPerSample == 24) ? 4 : (pcm_config.bitsPerSample / 8);
uint32_t data_mq_size =
(ceil(pcm_config.sampleRateHz) / 1000) *
channel_mode_to_channel_count(pcm_config.channelMode) *
(pcm_config.bitsPerSample / 8) * (pcm_config.dataIntervalUs / 1000) *
buffer_modifier;
channel_mode_to_channel_count(pcm_config.channelMode) * bytes_per_sample *
(pcm_config.dataIntervalUs / 1000) * buffer_modifier;
if (data_mq_size <= 0) {
LOG(ERROR) << __func__ << "Unexpected audio buffer size: " << data_mq_size
<< ", SampleRateHz: " << pcm_config.sampleRateHz
<< ", ChannelMode: " << toString(pcm_config.channelMode)
<< ", BitsPerSample: "
<< static_cast<int>(pcm_config.bitsPerSample)
<< ", BytesPerSample: " << bytes_per_sample
<< ", DataIntervalUs: " << pcm_config.dataIntervalUs
<< ", SessionType: " << toString(session_type_);
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);