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/*
**
** Copyright 2009, 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_NDEBUG 0
#define LOG_TAG "MidiMetadataRetriever"
#include <utils/Log.h>
#include "MidiMetadataRetriever.h"
#include <media/mediametadataretriever.h>
namespace android {
static status_t ERROR_NOT_OPEN = -1;
static status_t ERROR_OPEN_FAILED = -2;
static status_t ERROR_EAS_FAILURE = -3;
static status_t ERROR_ALLOCATE_FAILED = -4;
void MidiMetadataRetriever::clearMetadataValues()
{
ALOGV("clearMetadataValues");
mMetadataValues[0][0] = '\0';
}
status_t MidiMetadataRetriever::setDataSource(
const char *url, const KeyedVector<String8, String8> *headers)
{
ALOGV("setDataSource: %s", url? url: "NULL pointer");
Mutex::Autolock lock(mLock);
clearMetadataValues();
if (mMidiPlayer == 0) {
mMidiPlayer = new MidiFile();
}
return mMidiPlayer->setDataSource(url, headers);
}
status_t MidiMetadataRetriever::setDataSource(int fd, int64_t offset, int64_t length)
{
ALOGV("setDataSource: fd(%d), offset(%lld), and length(%lld)", fd, offset, length);
Mutex::Autolock lock(mLock);
clearMetadataValues();
if (mMidiPlayer == 0) {
mMidiPlayer = new MidiFile();
}
return mMidiPlayer->setDataSource(fd, offset, length);;
}
const char* MidiMetadataRetriever::extractMetadata(int keyCode)
{
ALOGV("extractMetdata: key(%d)", keyCode);
Mutex::Autolock lock(mLock);
if (mMidiPlayer == 0 || mMidiPlayer->initCheck() != NO_ERROR) {
LOGE("Midi player is not initialized yet");
return NULL;
}
switch (keyCode) {
case METADATA_KEY_DURATION:
{
if (mMetadataValues[0][0] == '\0') {
int duration = -1;
if (mMidiPlayer->getDuration(&duration) != NO_ERROR) {
LOGE("failed to get duration");
return NULL;
}
snprintf(mMetadataValues[0], MAX_METADATA_STRING_LENGTH, "%d", duration);
}
ALOGV("duration: %s ms", mMetadataValues[0]);
return mMetadataValues[0];
}
default:
LOGE("Unsupported key code (%d)", keyCode);
return NULL;
}
return NULL;
}
};
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