blob: 95bd4bb5b6d73b8796668de501f1a05d3d1d4d61 [file] [log] [blame]
/*
* Copyright (C) 2017 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 "AAudioServiceEndpointCapture"
//#define LOG_NDEBUG 0
#include <utils/Log.h>
#include <assert.h>
#include <map>
#include <mutex>
#include <utils/Singleton.h>
#include "AAudioEndpointManager.h"
#include "AAudioServiceEndpoint.h"
#include "core/AudioStreamBuilder.h"
#include "AAudioServiceEndpoint.h"
#include "AAudioServiceStreamShared.h"
#include "AAudioServiceEndpointCapture.h"
#include "AAudioServiceEndpointShared.h"
using namespace android; // TODO just import names needed
using namespace aaudio; // TODO just import names needed
AAudioServiceEndpointCapture::AAudioServiceEndpointCapture(AAudioService& audioService)
: AAudioServiceEndpointShared(
new AudioStreamInternalCapture(audioService.asAAudioServiceInterface(), true)) {
}
aaudio_result_t AAudioServiceEndpointCapture::open(const aaudio::AAudioStreamRequest &request) {
aaudio_result_t result = AAudioServiceEndpointShared::open(request);
if (result == AAUDIO_OK) {
int distributionBufferSizeBytes = getStreamInternal()->getFramesPerBurst()
* getStreamInternal()->getBytesPerFrame();
mDistributionBuffer = std::make_unique<uint8_t[]>(distributionBufferSizeBytes);
}
return result;
}
// Read data from the shared MMAP stream and then distribute it to the client streams.
void *AAudioServiceEndpointCapture::callbackLoop() {
ALOGD("callbackLoop() entering");
aaudio_result_t result = AAUDIO_OK;
int64_t timeoutNanos = getStreamInternal()->calculateReasonableTimeout();
// result might be a frame count
while (mCallbackEnabled.load() && getStreamInternal()->isActive() && (result >= 0)) {
int64_t mmapFramesRead = getStreamInternal()->getFramesRead();
// Read audio data from stream using a blocking read.
result = getStreamInternal()->read(mDistributionBuffer.get(),
getFramesPerBurst(), timeoutNanos);
if (result == AAUDIO_ERROR_DISCONNECTED) {
ALOGD("%s() read() returned AAUDIO_ERROR_DISCONNECTED", __func__);
AAudioServiceEndpointShared::handleDisconnectRegisteredStreamsAsync();
break;
} else if (result != getFramesPerBurst()) {
ALOGW("callbackLoop() read %d / %d",
result, getFramesPerBurst());
break;
}
// Distribute data to each active stream.
{ // brackets are for lock_guard
std::lock_guard <std::mutex> lock(mLockStreams);
for (const auto& clientStream : mRegisteredStreams) {
if (clientStream->isRunning() && !clientStream->isSuspended()) {
sp<AAudioServiceStreamShared> streamShared =
static_cast<AAudioServiceStreamShared *>(clientStream.get());
streamShared->writeDataIfRoom(mmapFramesRead,
mDistributionBuffer.get(),
getFramesPerBurst());
}
}
}
}
ALOGD("callbackLoop() exiting");
return NULL; // TODO review
}