android_media_MediaCodec.h revision aba671392d6606e35726c350a28d0c9b36ebfe16 
1/*
2 * Copyright 2012, 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 _ANDROID_MEDIA_MEDIACODEC_H_
18#define _ANDROID_MEDIA_MEDIACODEC_H_
19
20#include "jni.h"
21
22#include <media/hardware/CryptoAPI.h>
23#include <media/stagefright/foundation/ABase.h>
24#include <media/stagefright/foundation/AHandler.h>
25#include <utils/Errors.h>
26
27namespace android {
28
29struct ALooper;
30struct AMessage;
31struct AString;
32struct ICrypto;
33struct IGraphicBufferProducer;
34struct MediaCodec;
35class Surface;
36
37struct JMediaCodec : public AHandler {
38    JMediaCodec(
39            JNIEnv *env, jobject thiz,
40            const char *name, bool nameIsType, bool encoder);
41
42    status_t initCheck() const;
43
44    void registerSelf();
45
46    status_t configure(
47            const sp<AMessage> &format,
48            const sp<IGraphicBufferProducer> &bufferProducer,
49            const sp<ICrypto> &crypto,
50            int flags);
51
52    status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer);
53
54    status_t start();
55    status_t stop();
56
57    status_t flush();
58
59    status_t queueInputBuffer(
60            size_t index,
61            size_t offset, size_t size, int64_t timeUs, uint32_t flags,
62            AString *errorDetailMsg);
63
64    status_t queueSecureInputBuffer(
65            size_t index,
66            size_t offset,
67            const CryptoPlugin::SubSample *subSamples,
68            size_t numSubSamples,
69            const uint8_t key[16],
70            const uint8_t iv[16],
71            CryptoPlugin::Mode mode,
72            int64_t presentationTimeUs,
73            uint32_t flags,
74            AString *errorDetailMsg);
75
76    status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs);
77
78    status_t dequeueOutputBuffer(
79            JNIEnv *env, jobject bufferInfo, size_t *index, int64_t timeoutUs);
80
81    status_t releaseOutputBuffer(size_t index, bool render);
82
83    status_t signalEndOfInputStream();
84
85    status_t getOutputFormat(JNIEnv *env, jobject *format) const;
86
87    status_t getBuffers(
88            JNIEnv *env, bool input, jobjectArray *bufArray) const;
89
90    status_t getName(JNIEnv *env, jstring *name) const;
91
92    status_t setParameters(const sp<AMessage> &params);
93
94    void setVideoScalingMode(int mode);
95
96protected:
97    virtual ~JMediaCodec();
98
99    virtual void onMessageReceived(const sp<AMessage> &msg);
100
101private:
102    enum {
103        kWhatActivityNotify,
104        kWhatRequestActivityNotifications,
105        kWhatStopActivityNotifications,
106    };
107
108    jclass mClass;
109    jweak mObject;
110    sp<Surface> mSurfaceTextureClient;
111
112    sp<ALooper> mLooper;
113    sp<MediaCodec> mCodec;
114
115    sp<AMessage> mActivityNotification;
116    int32_t mGeneration;
117    bool mRequestedActivityNotification;
118
119    void requestActivityNotification();
120
121    DISALLOW_EVIL_CONSTRUCTORS(JMediaCodec);
122};
123
124}  // namespace android
125
126#endif  // _ANDROID_MEDIA_MEDIACODEC_H_
127