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      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 
     31 using namespace android;
     32 
     33 extern int storeBitmapToFile(SkBitmap* bitmap, const char* filename);
     34 
     35 class OmxJpegImageDecoder : public SkImageDecoder {
     36 public:
     37     OmxJpegImageDecoder();
     38     ~OmxJpegImageDecoder();
     39 
     40     virtual Format getFormat() const {
     41         return kJPEG_Format;
     42     }
     43 
     44 protected:
     45     virtual bool onDecode(SkStream* stream, SkBitmap* bm, Mode mode);
     46 
     47 private:
     48     JPEGSource* prepareMediaSource(SkStream* stream);
     49     sp<MediaSource> getDecoder(OMXClient* client, const sp<MediaSource>& source);
     50     bool decodeSource(sp<MediaSource> decoder, const sp<MediaSource>& source,
     51             SkBitmap* bm);
     52     void installPixelRef(MediaBuffer* buffer, sp<MediaSource> decoder,
     53             SkBitmap* bm);
     54     void configBitmapSize(SkBitmap* bm, SkBitmap::Config pref, int width,
     55             int height);
     56     SkBitmap::Config getColorSpaceConfig(SkBitmap::Config pref);
     57 
     58     OMXClient mClient;
     59 };
     60 
     61 #endif
     62