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86 lines
2.3 KiB
86 lines
2.3 KiB
/*
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* Copyright (C) 2012 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 "FastMixerState"
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//#define LOG_NDEBUG 0
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#include <cutils/properties.h>
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#include "FastMixerState.h"
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namespace android {
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FastTrack::FastTrack() :
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mBufferProvider(NULL), mVolumeProvider(NULL),
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mChannelMask(AUDIO_CHANNEL_OUT_STEREO), mFormat(AUDIO_FORMAT_INVALID), mGeneration(0)
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{
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}
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FastTrack::~FastTrack()
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{
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}
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FastMixerState::FastMixerState() : FastThreadState(),
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// mFastTracks
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mFastTracksGen(0), mTrackMask(0), mOutputSink(NULL), mOutputSinkGen(0),
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mFrameCount(0)
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{
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int ok = pthread_once(&sMaxFastTracksOnce, sMaxFastTracksInit);
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if (ok != 0) {
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ALOGE("%s pthread_once failed: %d", __func__, ok);
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}
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}
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FastMixerState::~FastMixerState()
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{
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}
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// static
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unsigned FastMixerState::sMaxFastTracks = kDefaultFastTracks;
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// static
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pthread_once_t FastMixerState::sMaxFastTracksOnce = PTHREAD_ONCE_INIT;
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// static
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const char *FastMixerState::commandToString(Command command)
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{
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const char *str = FastThreadState::commandToString(command);
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if (str != NULL) {
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return str;
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}
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switch (command) {
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case FastMixerState::MIX: return "MIX";
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case FastMixerState::WRITE: return "WRITE";
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case FastMixerState::MIX_WRITE: return "MIX_WRITE";
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}
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LOG_ALWAYS_FATAL("%s", __func__);
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}
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// static
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void FastMixerState::sMaxFastTracksInit()
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{
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char value[PROPERTY_VALUE_MAX];
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if (property_get("ro.audio.max_fast_tracks", value, NULL) > 0) {
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char *endptr;
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unsigned long ul = strtoul(value, &endptr, 0);
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if (*endptr == '\0' && kMinFastTracks <= ul && ul <= kMaxFastTracks) {
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sMaxFastTracks = (unsigned) ul;
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}
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}
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ALOGI("sMaxFastTracks = %u", sMaxFastTracks);
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}
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} // namespace android
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