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/*
* Copyright (C) 2008 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.
*/
#ifndef MEDIAMETADATARETRIEVER_H
#define MEDIAMETADATARETRIEVER_H
#include <utils/Errors.h> // for status_t
#include <utils/threads.h>
#include <binder/IMemory.h>
#include <media/IMediaMetadataRetriever.h>
namespace android {
class IMediaPlayerService;
class IMediaMetadataRetriever;
// Keep these in synch with the constants defined in MediaMetadataRetriever.java
// class.
enum {
METADATA_KEY_CD_TRACK_NUMBER = 0,
METADATA_KEY_ALBUM = 1,
METADATA_KEY_ARTIST = 2,
METADATA_KEY_AUTHOR = 3,
METADATA_KEY_COMPOSER = 4,
METADATA_KEY_DATE = 5,
METADATA_KEY_GENRE = 6,
METADATA_KEY_TITLE = 7,
METADATA_KEY_YEAR = 8,
METADATA_KEY_DURATION = 9,
METADATA_KEY_NUM_TRACKS = 10,
METADATA_KEY_IS_DRM_CRIPPLED = 11,
METADATA_KEY_CODEC = 12,
METADATA_KEY_RATING = 13,
METADATA_KEY_COMMENT = 14,
METADATA_KEY_COPYRIGHT = 15,
METADATA_KEY_BIT_RATE = 16,
METADATA_KEY_FRAME_RATE = 17,
METADATA_KEY_VIDEO_FORMAT = 18,
METADATA_KEY_VIDEO_HEIGHT = 19,
METADATA_KEY_VIDEO_WIDTH = 20,
METADATA_KEY_WRITER = 21,
// Add more here...
};
// The intended mode of operations:$
// METADATA_MODE_NOOP: Experimental - just add and remove data source.$
// METADATA_MODE_FRAME_CAPTURE_ONLY: For capture frame/thumbnail only.$
// METADATA_MODE_METADATA_RETRIEVAL_ONLY: For meta data retrieval only.$
// METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL: For both frame capture
// and meta data retrieval.$
enum {
METADATA_MODE_NOOP = 0x00,
METADATA_MODE_FRAME_CAPTURE_ONLY = 0x01,
METADATA_MODE_METADATA_RETRIEVAL_ONLY = 0x02,
METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL = 0x03
};
class MediaMetadataRetriever: public RefBase
{
public:
MediaMetadataRetriever();
~MediaMetadataRetriever();
void disconnect();
status_t setDataSource(const char* dataSourceUrl);
status_t setDataSource(int fd, int64_t offset, int64_t length);
status_t setMode(int mode);
status_t getMode(int* mode);
sp<IMemory> captureFrame();
sp<IMemory> extractAlbumArt();
const char* extractMetadata(int keyCode);
private:
static const sp<IMediaPlayerService>& getService();
class DeathNotifier: public IBinder::DeathRecipient
{
public:
DeathNotifier() {}
virtual ~DeathNotifier();
virtual void binderDied(const wp<IBinder>& who);
};
static sp<DeathNotifier> sDeathNotifier;
static Mutex sServiceLock;
static sp<IMediaPlayerService> sService;
Mutex mLock;
sp<IMediaMetadataRetriever> mRetriever;
};
}; // namespace android
#endif // MEDIAMETADATARETRIEVER_H
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