75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
/*
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**
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** Copyright (C) 2008 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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#ifndef ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
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#define ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
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#include <utils/RefBase.h>
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#include <media/mediametadataretriever.h>
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#include <private/media/VideoFrame.h>
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namespace android {
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// Abstract base class
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class MediaMetadataRetrieverBase : public RefBase
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{
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public:
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MediaMetadataRetrieverBase() {}
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virtual ~MediaMetadataRetrieverBase() {}
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virtual status_t setDataSource(const char *url) = 0;
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virtual status_t setDataSource(int fd, int64_t offset, int64_t length) = 0;
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virtual status_t setMode(int mode) = 0;
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virtual status_t getMode(int* mode) const = 0;
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virtual VideoFrame* captureFrame() = 0;
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virtual MediaAlbumArt* extractAlbumArt() = 0;
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virtual const char* extractMetadata(int keyCode) = 0;
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};
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// MediaMetadataRetrieverInterface
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class MediaMetadataRetrieverInterface : public MediaMetadataRetrieverBase
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{
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public:
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virtual ~MediaMetadataRetrieverInterface() {}
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// @param mode The intended mode of operations:
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// can be any of the following:
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// METADATA_MODE_NOOP: Experimental - just add and remove data source.
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// METADATA_MODE_FRAME_CAPTURE_ONLY: For capture frame/thumbnail only.
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// METADATA_MODE_METADATA_RETRIEVAL_ONLY: For meta data retrieval only.
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// METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL: For both frame
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// capture and meta data retrieval.
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virtual status_t setMode(int mode) {
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if (mode < METADATA_MODE_NOOP ||
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mode > METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL) {
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return BAD_VALUE;
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}
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return NO_ERROR;
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}
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virtual status_t getMode(int* mode) const { *mode = mMode; return NO_ERROR; }
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virtual VideoFrame* captureFrame() { return NULL; }
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virtual MediaAlbumArt* extractAlbumArt() { return NULL; }
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virtual const char* extractMetadata(int keyCode) { return NULL; }
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uint32_t mMode;
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};
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}; // namespace android
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#endif // ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
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