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 M4V_H263_DECODER_H_
18
19#define M4V_H263_DECODER_H_
20
21#include <media/stagefright/MediaBuffer.h>
22#include <media/stagefright/MediaSource.h>
23
24struct tagvideoDecControls;
25
26namespace android {
27
28struct M4vH263Decoder : public MediaSource,
29                        public MediaBufferObserver {
30    M4vH263Decoder(const sp<MediaSource> &source);
31
32    virtual status_t start(MetaData *params);
33    virtual status_t stop();
34
35    virtual sp<MetaData> getFormat();
36
37    virtual status_t read(
38            MediaBuffer **buffer, const ReadOptions *options);
39
40    virtual void signalBufferReturned(MediaBuffer *buffer);
41
42protected:
43    virtual ~M4vH263Decoder();
44
45private:
46    sp<MediaSource> mSource;
47    bool mStarted;
48    int32_t mWidth, mHeight;
49
50    sp<MetaData> mFormat;
51
52    tagvideoDecControls *mHandle;
53    MediaBuffer *mFrames[2];
54    MediaBuffer *mInputBuffer;
55
56    int64_t mNumSamplesOutput;
57    int64_t mTargetTimeUs;
58
59    void allocateFrames(int32_t width, int32_t height);
60    void releaseFrames();
61
62    M4vH263Decoder(const M4vH263Decoder &);
63    M4vH263Decoder &operator=(const M4vH263Decoder &);
64};
65
66}  // namespace android
67
68#endif  // M4V_H263_DECODER_H_
69