You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.9 KiB
89 lines
2.9 KiB
/*
|
|
* Copyright (C) 2012 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 "AudioStreamOutSink"
|
|
//#define LOG_NDEBUG 0
|
|
|
|
#include <utils/Log.h>
|
|
#include <audio_utils/clock.h>
|
|
#include <media/audiohal/StreamHalInterface.h>
|
|
#include <media/nbaio/AudioStreamOutSink.h>
|
|
|
|
namespace android {
|
|
|
|
AudioStreamOutSink::AudioStreamOutSink(sp<StreamOutHalInterface> stream) :
|
|
NBAIO_Sink(),
|
|
mStream(stream),
|
|
mStreamBufferSizeBytes(0)
|
|
{
|
|
ALOG_ASSERT(stream != 0);
|
|
}
|
|
|
|
AudioStreamOutSink::~AudioStreamOutSink()
|
|
{
|
|
mStream.clear();
|
|
}
|
|
|
|
ssize_t AudioStreamOutSink::negotiate(const NBAIO_Format offers[], size_t numOffers,
|
|
NBAIO_Format counterOffers[], size_t& numCounterOffers)
|
|
{
|
|
if (!Format_isValid(mFormat)) {
|
|
status_t result;
|
|
result = mStream->getBufferSize(&mStreamBufferSizeBytes);
|
|
if (result != OK) return result;
|
|
audio_config_base_t config = AUDIO_CONFIG_BASE_INITIALIZER;
|
|
result = mStream->getAudioProperties(&config);
|
|
if (result != OK) return result;
|
|
mFormat = Format_from_SR_C(config.sample_rate,
|
|
audio_channel_count_from_out_mask(config.channel_mask), config.format);
|
|
mFrameSize = Format_frameSize(mFormat);
|
|
}
|
|
return NBAIO_Sink::negotiate(offers, numOffers, counterOffers, numCounterOffers);
|
|
}
|
|
|
|
ssize_t AudioStreamOutSink::write(const void *buffer, size_t count)
|
|
{
|
|
if (!mNegotiated) {
|
|
return NEGOTIATE;
|
|
}
|
|
ALOG_ASSERT(Format_isValid(mFormat));
|
|
size_t written;
|
|
status_t ret = mStream->write(buffer, count * mFrameSize, &written);
|
|
if (ret == OK && written > 0) {
|
|
written /= mFrameSize;
|
|
mFramesWritten += written;
|
|
return written;
|
|
} else {
|
|
// FIXME verify HAL implementations are returning the correct error codes e.g. WOULD_BLOCK
|
|
ALOGE_IF(ret != OK, "Error while writing data to HAL: %d", ret);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
status_t AudioStreamOutSink::getTimestamp(ExtendedTimestamp ×tamp)
|
|
{
|
|
uint64_t position64;
|
|
struct timespec time;
|
|
if (mStream->getPresentationPosition(&position64, &time) != OK) {
|
|
return INVALID_OPERATION;
|
|
}
|
|
timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = position64;
|
|
timestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL] = audio_utils_ns_from_timespec(&time);
|
|
return OK;
|
|
}
|
|
|
|
} // namespace android
|