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96 lines
3.5 KiB
96 lines
3.5 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "AudioProductStrategy"
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//#define LOG_NDEBUG 0
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#include <utils/Log.h>
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#include <media/AudioProductStrategy.h>
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#include <media/AudioAttributes.h>
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#include <media/AudioSystem.h>
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namespace android {
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status_t AudioProductStrategy::readFromParcel(const Parcel *parcel)
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{
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mId = static_cast<product_strategy_t>(parcel->readInt32());
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status_t ret = parcel->readUtf8FromUtf16(&mName);
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if (ret != NO_ERROR) {
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return ret;
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}
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size_t size = static_cast<size_t>(parcel->readInt32());
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for (size_t i = 0; i < size; i++) {
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AudioAttributes attribute;
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ret = attribute.readFromParcel(parcel);
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if (ret != NO_ERROR) {
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mAudioAttributes.clear();
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return ret;
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}
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mAudioAttributes.push_back(attribute);
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}
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return NO_ERROR;
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}
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status_t AudioProductStrategy::writeToParcel(Parcel *parcel) const
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{
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parcel->writeInt32(static_cast<int32_t>(mId));
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parcel->writeUtf8AsUtf16(mName);
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size_t size = mAudioAttributes.size();
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size_t sizePosition = parcel->dataPosition();
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parcel->writeInt32(size);
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size_t finalSize = size;
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for (size_t i = 0; i < size; i++) {
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size_t position = parcel->dataPosition();
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AudioAttributes attribute(mAudioAttributes[i]);
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status_t ret = attribute.writeToParcel(parcel);
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if (ret != NO_ERROR) {
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parcel->setDataPosition(position);
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finalSize--;
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}
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}
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if (size != finalSize) {
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size_t position = parcel->dataPosition();
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parcel->setDataPosition(sizePosition);
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parcel->writeInt32(finalSize);
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parcel->setDataPosition(position);
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}
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return NO_ERROR;
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}
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// Keep in sync with android/media/audiopolicy/AudioProductStrategy#attributeMatches
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bool AudioProductStrategy::attributesMatches(const audio_attributes_t refAttributes,
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const audio_attributes_t clientAttritubes)
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{
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if (refAttributes == AUDIO_ATTRIBUTES_INITIALIZER) {
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// The default product strategy is the strategy that holds default attributes by convention.
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// All attributes that fail to match will follow the default strategy for routing.
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// Choosing the default must be done as a fallback, the attributes match shall not
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// select the default.
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return false;
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}
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return ((refAttributes.usage == AUDIO_USAGE_UNKNOWN) ||
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(clientAttritubes.usage == refAttributes.usage)) &&
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((refAttributes.content_type == AUDIO_CONTENT_TYPE_UNKNOWN) ||
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(clientAttritubes.content_type == refAttributes.content_type)) &&
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((refAttributes.flags == AUDIO_FLAG_NONE) ||
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(clientAttritubes.flags != AUDIO_FLAG_NONE &&
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(clientAttritubes.flags & refAttributes.flags) == refAttributes.flags)) &&
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((strlen(refAttributes.tags) == 0) ||
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(std::strcmp(clientAttritubes.tags, refAttributes.tags) == 0));
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}
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} // namespace android
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