mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-14 06:57:27 +01:00
268 lines
12 KiB
C++
Vendored
268 lines
12 KiB
C++
Vendored
/*
|
|
* Copyright (C) 2019 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.
|
|
*/
|
|
|
|
#include <memory>
|
|
|
|
#include "oboe_common_OboeDebug_android.h"
|
|
#include "oboe_common_DataConversionFlowGraph_android.h"
|
|
#include "oboe_common_SourceFloatCaller_android.h"
|
|
#include "oboe_common_SourceI16Caller_android.h"
|
|
#include "oboe_common_SourceI24Caller_android.h"
|
|
#include "oboe_common_SourceI32Caller_android.h"
|
|
|
|
#include "oboe_flowgraph_ClipToRange_android.h"
|
|
#include "oboe_flowgraph_MonoToMultiConverter_android.h"
|
|
#include "oboe_flowgraph_MultiToMonoConverter_android.h"
|
|
#include "oboe_flowgraph_RampLinear_android.h"
|
|
#include "oboe_flowgraph_SinkFloat_android.h"
|
|
#include "oboe_flowgraph_SinkI16_android.h"
|
|
#include "oboe_flowgraph_SinkI24_android.h"
|
|
#include "oboe_flowgraph_SinkI32_android.h"
|
|
#include "oboe_flowgraph_SourceFloat_android.h"
|
|
#include "oboe_flowgraph_SourceI16_android.h"
|
|
#include "oboe_flowgraph_SourceI24_android.h"
|
|
#include "oboe_flowgraph_SourceI32_android.h"
|
|
#include "oboe_flowgraph_SampleRateConverter_android.h"
|
|
|
|
using namespace oboe;
|
|
using namespace flowgraph;
|
|
using namespace resampler;
|
|
|
|
void DataConversionFlowGraph::setSource(const void *buffer, int32_t numFrames) {
|
|
mSource->setData(buffer, numFrames);
|
|
}
|
|
|
|
static MultiChannelResampler::Quality convertOboeSRQualityToMCR(SampleRateConversionQuality quality) {
|
|
switch (quality) {
|
|
case SampleRateConversionQuality::Fastest:
|
|
return MultiChannelResampler::Quality::Fastest;
|
|
case SampleRateConversionQuality::Low:
|
|
return MultiChannelResampler::Quality::Low;
|
|
default:
|
|
case SampleRateConversionQuality::Medium:
|
|
return MultiChannelResampler::Quality::Medium;
|
|
case SampleRateConversionQuality::High:
|
|
return MultiChannelResampler::Quality::High;
|
|
case SampleRateConversionQuality::Best:
|
|
return MultiChannelResampler::Quality::Best;
|
|
}
|
|
}
|
|
|
|
// Chain together multiple processors.
|
|
// Callback Output
|
|
// Use SourceCaller that calls original app callback from the flowgraph.
|
|
// The child callback from FilteredAudioStream read()s from the flowgraph.
|
|
// Callback Input
|
|
// Child callback from FilteredAudioStream writes()s to the flowgraph.
|
|
// The output of the flowgraph goes through a BlockWriter to the app callback.
|
|
// Blocking Write
|
|
// Write buffer is set on an AudioSource.
|
|
// Data is pulled through the graph and written to the child stream.
|
|
// Blocking Read
|
|
// Reads in a loop from the flowgraph Sink to fill the read buffer.
|
|
// A SourceCaller then does a blocking read from the child Stream.
|
|
//
|
|
Result DataConversionFlowGraph::configure(AudioStream *sourceStream, AudioStream *sinkStream) {
|
|
|
|
FlowGraphPortFloatOutput *lastOutput = nullptr;
|
|
|
|
bool isOutput = sourceStream->getDirection() == Direction::Output;
|
|
bool isInput = !isOutput;
|
|
mFilterStream = isOutput ? sourceStream : sinkStream;
|
|
|
|
AudioFormat sourceFormat = sourceStream->getFormat();
|
|
int32_t sourceChannelCount = sourceStream->getChannelCount();
|
|
int32_t sourceSampleRate = sourceStream->getSampleRate();
|
|
int32_t sourceFramesPerCallback = sourceStream->getFramesPerDataCallback();
|
|
|
|
AudioFormat sinkFormat = sinkStream->getFormat();
|
|
int32_t sinkChannelCount = sinkStream->getChannelCount();
|
|
int32_t sinkSampleRate = sinkStream->getSampleRate();
|
|
int32_t sinkFramesPerCallback = sinkStream->getFramesPerDataCallback();
|
|
|
|
LOGI("%s() flowgraph converts channels: %d to %d, format: %d to %d"
|
|
", rate: %d to %d, cbsize: %d to %d, qual = %d",
|
|
__func__,
|
|
sourceChannelCount, sinkChannelCount,
|
|
sourceFormat, sinkFormat,
|
|
sourceSampleRate, sinkSampleRate,
|
|
sourceFramesPerCallback, sinkFramesPerCallback,
|
|
sourceStream->getSampleRateConversionQuality());
|
|
|
|
// Source
|
|
// IF OUTPUT and using a callback then call back to the app using a SourceCaller.
|
|
// OR IF INPUT and NOT using a callback then read from the child stream using a SourceCaller.
|
|
bool isDataCallbackSpecified = sourceStream->isDataCallbackSpecified();
|
|
if ((isDataCallbackSpecified && isOutput)
|
|
|| (!isDataCallbackSpecified && isInput)) {
|
|
int32_t actualSourceFramesPerCallback = (sourceFramesPerCallback == kUnspecified)
|
|
? sourceStream->getFramesPerBurst()
|
|
: sourceFramesPerCallback;
|
|
switch (sourceFormat) {
|
|
case AudioFormat::Float:
|
|
mSourceCaller = std::make_unique<SourceFloatCaller>(sourceChannelCount,
|
|
actualSourceFramesPerCallback);
|
|
break;
|
|
case AudioFormat::I16:
|
|
mSourceCaller = std::make_unique<SourceI16Caller>(sourceChannelCount,
|
|
actualSourceFramesPerCallback);
|
|
break;
|
|
case AudioFormat::I24:
|
|
mSourceCaller = std::make_unique<SourceI24Caller>(sourceChannelCount,
|
|
actualSourceFramesPerCallback);
|
|
break;
|
|
case AudioFormat::I32:
|
|
mSourceCaller = std::make_unique<SourceI32Caller>(sourceChannelCount,
|
|
actualSourceFramesPerCallback);
|
|
break;
|
|
default:
|
|
LOGE("%s() Unsupported source caller format = %d", __func__, sourceFormat);
|
|
return Result::ErrorIllegalArgument;
|
|
}
|
|
mSourceCaller->setStream(sourceStream);
|
|
lastOutput = &mSourceCaller->output;
|
|
} else {
|
|
// IF OUTPUT and NOT using a callback then write to the child stream using a BlockWriter.
|
|
// OR IF INPUT and using a callback then write to the app using a BlockWriter.
|
|
switch (sourceFormat) {
|
|
case AudioFormat::Float:
|
|
mSource = std::make_unique<SourceFloat>(sourceChannelCount);
|
|
break;
|
|
case AudioFormat::I16:
|
|
mSource = std::make_unique<SourceI16>(sourceChannelCount);
|
|
break;
|
|
case AudioFormat::I24:
|
|
mSource = std::make_unique<SourceI24>(sourceChannelCount);
|
|
break;
|
|
case AudioFormat::I32:
|
|
mSource = std::make_unique<SourceI32>(sourceChannelCount);
|
|
break;
|
|
default:
|
|
LOGE("%s() Unsupported source format = %d", __func__, sourceFormat);
|
|
return Result::ErrorIllegalArgument;
|
|
}
|
|
if (isInput) {
|
|
int32_t actualSinkFramesPerCallback = (sinkFramesPerCallback == kUnspecified)
|
|
? sinkStream->getFramesPerBurst()
|
|
: sinkFramesPerCallback;
|
|
// The BlockWriter is after the Sink so use the SinkStream size.
|
|
mBlockWriter.open(actualSinkFramesPerCallback * sinkStream->getBytesPerFrame());
|
|
mAppBuffer = std::make_unique<uint8_t[]>(
|
|
kDefaultBufferSize * sinkStream->getBytesPerFrame());
|
|
}
|
|
lastOutput = &mSource->output;
|
|
}
|
|
|
|
// If we are going to reduce the number of channels then do it before the
|
|
// sample rate converter.
|
|
if (sourceChannelCount > sinkChannelCount) {
|
|
if (sinkChannelCount == 1) {
|
|
mMultiToMonoConverter = std::make_unique<MultiToMonoConverter>(sourceChannelCount);
|
|
lastOutput->connect(&mMultiToMonoConverter->input);
|
|
lastOutput = &mMultiToMonoConverter->output;
|
|
} else {
|
|
mChannelCountConverter = std::make_unique<ChannelCountConverter>(
|
|
sourceChannelCount,
|
|
sinkChannelCount);
|
|
lastOutput->connect(&mChannelCountConverter->input);
|
|
lastOutput = &mChannelCountConverter->output;
|
|
}
|
|
}
|
|
|
|
// Sample Rate conversion
|
|
if (sourceSampleRate != sinkSampleRate) {
|
|
// Create a resampler to do the math.
|
|
mResampler.reset(MultiChannelResampler::make(lastOutput->getSamplesPerFrame(),
|
|
sourceSampleRate,
|
|
sinkSampleRate,
|
|
convertOboeSRQualityToMCR(
|
|
sourceStream->getSampleRateConversionQuality())));
|
|
// Make a flowgraph node that uses the resampler.
|
|
mRateConverter = std::make_unique<SampleRateConverter>(lastOutput->getSamplesPerFrame(),
|
|
*mResampler.get());
|
|
lastOutput->connect(&mRateConverter->input);
|
|
lastOutput = &mRateConverter->output;
|
|
}
|
|
|
|
// Expand the number of channels if required.
|
|
if (sourceChannelCount < sinkChannelCount) {
|
|
if (sourceChannelCount == 1) {
|
|
mMonoToMultiConverter = std::make_unique<MonoToMultiConverter>(sinkChannelCount);
|
|
lastOutput->connect(&mMonoToMultiConverter->input);
|
|
lastOutput = &mMonoToMultiConverter->output;
|
|
} else {
|
|
mChannelCountConverter = std::make_unique<ChannelCountConverter>(
|
|
sourceChannelCount,
|
|
sinkChannelCount);
|
|
lastOutput->connect(&mChannelCountConverter->input);
|
|
lastOutput = &mChannelCountConverter->output;
|
|
}
|
|
}
|
|
|
|
// Sink
|
|
switch (sinkFormat) {
|
|
case AudioFormat::Float:
|
|
mSink = std::make_unique<SinkFloat>(sinkChannelCount);
|
|
break;
|
|
case AudioFormat::I16:
|
|
mSink = std::make_unique<SinkI16>(sinkChannelCount);
|
|
break;
|
|
case AudioFormat::I24:
|
|
mSink = std::make_unique<SinkI24>(sinkChannelCount);
|
|
break;
|
|
case AudioFormat::I32:
|
|
mSink = std::make_unique<SinkI32>(sinkChannelCount);
|
|
break;
|
|
default:
|
|
LOGE("%s() Unsupported sink format = %d", __func__, sinkFormat);
|
|
return Result::ErrorIllegalArgument;;
|
|
}
|
|
lastOutput->connect(&mSink->input);
|
|
|
|
return Result::OK;
|
|
}
|
|
|
|
int32_t DataConversionFlowGraph::read(void *buffer, int32_t numFrames, int64_t timeoutNanos) {
|
|
if (mSourceCaller) {
|
|
mSourceCaller->setTimeoutNanos(timeoutNanos);
|
|
}
|
|
int32_t numRead = mSink->read(buffer, numFrames);
|
|
return numRead;
|
|
}
|
|
|
|
// This is similar to pushing data through the flowgraph.
|
|
int32_t DataConversionFlowGraph::write(void *inputBuffer, int32_t numFrames) {
|
|
// Put the data from the input at the head of the flowgraph.
|
|
mSource->setData(inputBuffer, numFrames);
|
|
while (true) {
|
|
// Pull and read some data in app format into a small buffer.
|
|
int32_t framesRead = mSink->read(mAppBuffer.get(), flowgraph::kDefaultBufferSize);
|
|
if (framesRead <= 0) break;
|
|
// Write to a block adapter, which will call the destination whenever it has enough data.
|
|
int32_t bytesRead = mBlockWriter.write(mAppBuffer.get(),
|
|
framesRead * mFilterStream->getBytesPerFrame());
|
|
if (bytesRead < 0) return bytesRead; // TODO review
|
|
}
|
|
return numFrames;
|
|
}
|
|
|
|
int32_t DataConversionFlowGraph::onProcessFixedBlock(uint8_t *buffer, int32_t numBytes) {
|
|
int32_t numFrames = numBytes / mFilterStream->getBytesPerFrame();
|
|
mCallbackResult = mFilterStream->getDataCallback()->onAudioReady(mFilterStream, buffer, numFrames);
|
|
// TODO handle STOP from callback, process data remaining in the block adapter
|
|
return numBytes;
|
|
}
|