omx_jpeg_decoder.h revision 4b6f4942fcef3300b407d9a07a680c07b162333f 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef OMXJPEGIMAGEDECODER
18#define OMXJPEGIMAGEDECODER
19
20#include <stdlib.h>
21#include <string.h>
22#include <unistd.h>
23
24#include <media/stagefright/JPEGSource.h>
25#include <media/stagefright/MediaSource.h>
26#include <media/stagefright/OMXClient.h>
27#include <media/stagefright/OMXCodec.h>
28#include <SkImageDecoder.h>
29#include <SkStream.h>
30
31using namespace android;
32
33extern int storeBitmapToFile(SkBitmap* bitmap, char* filename);
34
35class OmxJpegImageDecoder : public SkImageDecoder {
36public:
37    OmxJpegImageDecoder();
38    ~OmxJpegImageDecoder();
39
40    virtual Format getFormat() const {
41        return kJPEG_Format;
42    }
43
44protected:
45    virtual bool onDecode(SkStream* stream, SkBitmap* bm,
46            SkBitmap::Config pref, Mode mode);
47
48private:
49    JPEGSource* prepareMediaSource(SkStream* stream);
50    sp<OMXCodec> getDecoder(OMXClient* client, const sp<MediaSource>& source);
51    bool decodeSource(sp<OMXCodec> decoder, const sp<MediaSource>& source,
52            SkBitmap* bm);
53    void installPixelRef(MediaBuffer* buffer, sp<OMXCodec> decoder,
54            SkBitmap* bm);
55    void configBitmapSize(SkBitmap* bm, SkBitmap::Config pref, int width,
56            int height);
57    SkBitmap::Config getColorSpaceConfig(SkBitmap::Config pref);
58
59    OMXClient mClient;
60};
61
62#endif
63