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Commit b862e6e2 authored by Mikhail Naganov's avatar Mikhail Naganov Committed by Gerrit Code Review
Browse files

Merge "audio: Make I/O operations in default stub more realistic"

parents c3177488 e48e5737

audio/aidl/default/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ cc_defaults { 
    shared_libs: [

        "libalsautilsv2",

        "libaudioaidlcommon",

        "libaudioutils",

        "libbase",

        "libbinder_ndk",

        "libcutils",

audio/aidl/default/StreamStub.cpp

+22 −7
Original line number Diff line number Diff line
@@ -14,8 +14,11 @@ 
 * limitations under the License.

 */



#include <cmath>



#define LOG_TAG "AHAL_Stream"

#include <android-base/logging.h>

#include <audio_utils/clock.h>



#include "core-impl/Module.h"

#include "core-impl/StreamStub.h"
@@ -29,31 +32,42 @@ using aidl::android::media::audio::common::MicrophoneInfo; 
namespace aidl::android::hardware::audio::core {



DriverStub::DriverStub(const StreamContext& context, bool isInput)

    : mFrameSizeBytes(context.getFrameSize()), mIsInput(isInput) {}

    : mFrameSizeBytes(context.getFrameSize()),

      mSampleRate(context.getSampleRate()),

      mIsAsynchronous(!!context.getAsyncCallback()),

      mIsInput(isInput) {}



::android::status_t DriverStub::init() {

    usleep(1000);

    usleep(500);

    return ::android::OK;

}



::android::status_t DriverStub::drain(StreamDescriptor::DrainMode) {

    usleep(1000);

    usleep(500);

    return ::android::OK;

}



::android::status_t DriverStub::flush() {

    usleep(1000);

    usleep(500);

    return ::android::OK;

}



::android::status_t DriverStub::pause() {

    usleep(1000);

    usleep(500);

    return ::android::OK;

}



::android::status_t DriverStub::transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,

                                         int32_t* latencyMs) {

    usleep(3000);

    static constexpr float kMicrosPerSecond = MICROS_PER_SECOND;

    static constexpr float kScaleFactor = .8f;

    if (mIsAsynchronous) {

        usleep(500);

    } else {

        const size_t delayUs = static_cast<size_t>(

                std::roundf(kScaleFactor * frameCount * kMicrosPerSecond / mSampleRate));

        usleep(delayUs);

    }

    if (mIsInput) {

        uint8_t* byteBuffer = static_cast<uint8_t*>(buffer);

        for (size_t i = 0; i < frameCount * mFrameSizeBytes; ++i) {
@@ -66,12 +80,13 @@ DriverStub::DriverStub(const StreamContext& context, bool isInput) 
}



::android::status_t DriverStub::standby() {

    usleep(1000);

    usleep(500);

    return ::android::OK;

}



::android::status_t DriverStub::setConnectedDevices(

        const std::vector<AudioDevice>& connectedDevices __unused) {

    usleep(500);

    return ::android::OK;

}

audio/aidl/default/include/core-impl/Module.h

+1 −1
Original line number Diff line number Diff line
@@ -164,7 +164,7 @@ class Module : public BnModule { 
    bool isMmapSupported();



    // This value is used for all AudioPatches.

    static constexpr int32_t kMinimumStreamBufferSizeFrames = 16;

    static constexpr int32_t kMinimumStreamBufferSizeFrames = 256;

    // The maximum stream buffer size is 1 GiB = 2 ** 30 bytes;

    static constexpr int32_t kMaximumStreamBufferSizeBytes = 1 << 30;

audio/aidl/default/include/core-impl/StreamStub.h

+2 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ class DriverStub : public DriverInterface { 


  private:

    const size_t mFrameSizeBytes;

    const int mSampleRate;

    const bool mIsAsynchronous;

    const bool mIsInput;

};