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