android_media_MediaCodec.h revision 7de28d34f1ca3a727a8325cf3304f2fe03d2ac59 
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 ABuffer;
30struct ALooper;
31struct AMessage;
32struct AString;
33struct ICrypto;
34struct IGraphicBufferProducer;
35struct MediaCodec;
36class Surface;
37
38struct JMediaCodec : public AHandler {
39    JMediaCodec(
40            JNIEnv *env, jobject thiz,
41            const char *name, bool nameIsType, bool encoder);
42
43    status_t initCheck() const;
44
45    void registerSelf();
46    void release();
47
48    status_t setCallback(jobject cb);
49
50    status_t configure(
51            const sp<AMessage> &format,
52            const sp<IGraphicBufferProducer> &bufferProducer,
53            const sp<ICrypto> &crypto,
54            int flags);
55
56    status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer);
57
58    status_t start();
59    status_t stop();
60    status_t reset();
61
62    status_t flush();
63
64    status_t queueInputBuffer(
65            size_t index,
66            size_t offset, size_t size, int64_t timeUs, uint32_t flags,
67            AString *errorDetailMsg);
68
69    status_t queueSecureInputBuffer(
70            size_t index,
71            size_t offset,
72            const CryptoPlugin::SubSample *subSamples,
73            size_t numSubSamples,
74            const uint8_t key[16],
75            const uint8_t iv[16],
76            CryptoPlugin::Mode mode,
77            int64_t presentationTimeUs,
78            uint32_t flags,
79            AString *errorDetailMsg);
80
81    status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs);
82
83    status_t dequeueOutputBuffer(
84            JNIEnv *env, jobject bufferInfo, size_t *index, int64_t timeoutUs);
85
86    status_t releaseOutputBuffer(
87            size_t index, bool render, bool updatePTS, int64_t timestampNs);
88
89    status_t signalEndOfInputStream();
90
91    status_t getFormat(JNIEnv *env, bool input, jobject *format) const;
92
93    status_t getOutputFormat(JNIEnv *env, size_t index, jobject *format) const;
94
95    status_t getBuffers(
96            JNIEnv *env, bool input, jobjectArray *bufArray) const;
97
98    status_t getBuffer(
99            JNIEnv *env, bool input, size_t index, jobject *buf) const;
100
101    status_t getImage(
102            JNIEnv *env, bool input, size_t index, jobject *image) const;
103
104    status_t getName(JNIEnv *env, jstring *name) const;
105
106    status_t setParameters(const sp<AMessage> &params);
107
108    void setVideoScalingMode(int mode);
109
110protected:
111    virtual ~JMediaCodec();
112
113    virtual void onMessageReceived(const sp<AMessage> &msg);
114    void handleCallback(const sp<AMessage> &msg);
115
116private:
117    enum {
118        kWhatCallbackNotify,
119    };
120
121    jclass mClass;
122    jweak mObject;
123    sp<Surface> mSurfaceTextureClient;
124
125    // java objects cached
126    jclass mByteBufferClass;
127    jobject mNativeByteOrderObj;
128    jmethodID mByteBufferOrderMethodID;
129    jmethodID mByteBufferPositionMethodID;
130    jmethodID mByteBufferLimitMethodID;
131    jmethodID mByteBufferAsReadOnlyBufferMethodID;
132
133    sp<ALooper> mLooper;
134    sp<MediaCodec> mCodec;
135
136    sp<AMessage> mCallbackNotification;
137
138    status_t createByteBufferFromABuffer(
139            JNIEnv *env, bool readOnly, bool clearBuffer, const sp<ABuffer> &buffer,
140            jobject *buf) const;
141
142    void cacheJavaObjects(JNIEnv *env);
143    void deleteJavaObjects(JNIEnv *env);
144
145    DISALLOW_EVIL_CONSTRUCTORS(JMediaCodec);
146};
147
148}  // namespace android
149
150#endif  // _ANDROID_MEDIA_MEDIACODEC_H_
151