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Commit ca4a03aa authored by kuanyuhuang's avatar kuanyuhuang
Browse files

Support setting BT controller Low Latency mode(1/2) 

Handle audio api StartRequest and SetLatencyMode in a2dp to send stream latency
through btif_av to bta event.

Bug: 240637363
Bug: 223126227
Tag: #feature
Ignore-AOSP-First: TM QPR1 feature
Test: test on sink device support dynamic spatial audio
Change-Id: I9ad4a23a58eeca6128a9f04a530ae6c90c773da5
parent 42e7b1d3

system/audio_hal_interface/aidl/a2dp_encoding_aidl.cc

+6 −2
Original line number Diff line number Diff line
@@ -90,7 +90,7 @@ BluetoothAudioCtrlAck A2dpTransport::StartRequest(bool is_low_latency) { 
     * procedure is completed, othewise send it now.

     */

    a2dp_pending_cmd_ = A2DP_CTRL_CMD_START;

    btif_av_stream_start();

    btif_av_stream_start_with_latency(is_low_latency);

    if (btif_av_get_peer_sep() != AVDT_TSEP_SRC) {

      LOG(INFO) << __func__ << ": accepted";

      return a2dp_ack_to_bt_audio_ctrl_ack(A2DP_CTRL_ACK_PENDING);
@@ -138,6 +138,10 @@ void A2dpTransport::StopRequest() { 
  btif_av_stream_stop(RawAddress::kEmpty);

}



void A2dpTransport::SetLowLatency(bool is_low_latency) {

  btif_av_set_low_latency(is_low_latency);

}



bool A2dpTransport::GetPresentationPosition(uint64_t* remote_delay_report_ns,

                                            uint64_t* total_bytes_read,

                                            timespec* data_position) {

system/audio_hal_interface/aidl/a2dp_transport.h

+3 −1
Original line number Diff line number Diff line
@@ -39,6 +39,8 @@ class A2dpTransport 


  void StopRequest() override;



  void SetLowLatency(bool is_low_latency) override;



  bool GetPresentationPosition(uint64_t* remote_delay_report_ns,

                               uint64_t* total_bytes_read,

                               timespec* data_position) override;

system/audio_hal_interface/aidl/bluetooth_audio_port_impl.cc

+2 −1
Original line number Diff line number Diff line
@@ -137,6 +137,7 @@ ndk::ScopedAStatus BluetoothAudioPortImpl::setLatencyMode( 
    LatencyMode latency_mode) {

  bool is_low_latency = latency_mode == LatencyMode::LOW_LATENCY ? true : false;

  invoke_switch_buffer_size_cb(is_low_latency);

  transport_instance_->SetLowLatency(is_low_latency);

  return ndk::ScopedAStatus::ok();

}

system/audio_hal_interface/aidl/hearing_aid_software_encoding_aidl.cc

+3 −1
Original line number Diff line number Diff line
@@ -74,6 +74,8 @@ class HearingAidTransport 
    }

  }



  void SetLowLatency(bool is_low_latency) override {}



  bool GetPresentationPosition(uint64_t* remote_delay_report_ns,

                               uint64_t* total_bytes_read,

                               timespec* data_position) override {

system/audio_hal_interface/aidl/le_audio_software_aidl.cc

+11 −1
Original line number Diff line number Diff line
@@ -93,6 +93,8 @@ void LeAudioTransport::StopRequest() { 
  }

}



void LeAudioTransport::SetLowLatency(bool is_low_latency) {}



bool LeAudioTransport::GetPresentationPosition(uint64_t* remote_delay_report_ns,

                                               uint64_t* total_bytes_processed,

                                               timespec* data_position) {
@@ -244,6 +246,10 @@ BluetoothAudioCtrlAck LeAudioSinkTransport::SuspendRequest() { 


void LeAudioSinkTransport::StopRequest() { transport_->StopRequest(); }



void LeAudioSinkTransport::SetLowLatency(bool is_low_latency) {

  transport_->SetLowLatency(is_low_latency);

}



bool LeAudioSinkTransport::GetPresentationPosition(

    uint64_t* remote_delay_report_ns, uint64_t* total_bytes_read,

    timespec* data_position) {
@@ -327,6 +333,10 @@ BluetoothAudioCtrlAck LeAudioSourceTransport::SuspendRequest() { 


void LeAudioSourceTransport::StopRequest() { transport_->StopRequest(); }



void LeAudioSourceTransport::SetLowLatency(bool is_low_latency) {

  transport_->SetLowLatency(is_low_latency);

}



bool LeAudioSourceTransport::GetPresentationPosition(

    uint64_t* remote_delay_report_ns, uint64_t* total_bytes_written,

    timespec* data_position) {