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/MediaAnalyticsItem.h>
23#include <media/hardware/CryptoAPI.h>
24#include <media/stagefright/foundation/ABase.h>
25#include <media/stagefright/foundation/AHandler.h>
26#include <utils/Errors.h>
27
28namespace android {
29
30struct ABuffer;
31struct ALooper;
32struct AMessage;
33struct AString;
34struct ICrypto;
35class IGraphicBufferProducer;
36struct MediaCodec;
37struct PersistentSurface;
38class Surface;
39namespace media {
40class IDescrambler;
41};
42using namespace media;
43
44struct JMediaCodec : public AHandler {
45    JMediaCodec(
46            JNIEnv *env, jobject thiz,
47            const char *name, bool nameIsType, bool encoder);
48
49    status_t initCheck() const;
50
51    void registerSelf();
52    void release();
53
54    status_t enableOnFrameRenderedListener(jboolean enable);
55
56    status_t setCallback(jobject cb);
57
58    status_t configure(
59            const sp<AMessage> &format,
60            const sp<IGraphicBufferProducer> &bufferProducer,
61            const sp<ICrypto> &crypto,
62            const sp<IDescrambler> &descrambler,
63            int flags);
64
65    status_t setSurface(
66            const sp<IGraphicBufferProducer> &surface);
67
68    status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer);
69    status_t setInputSurface(const sp<PersistentSurface> &surface);
70
71    status_t start();
72    status_t stop();
73    status_t reset();
74
75    status_t flush();
76
77    status_t queueInputBuffer(
78            size_t index,
79            size_t offset, size_t size, int64_t timeUs, uint32_t flags,
80            AString *errorDetailMsg);
81
82    status_t queueSecureInputBuffer(
83            size_t index,
84            size_t offset,
85            const CryptoPlugin::SubSample *subSamples,
86            size_t numSubSamples,
87            const uint8_t key[16],
88            const uint8_t iv[16],
89            CryptoPlugin::Mode mode,
90            const CryptoPlugin::Pattern &pattern,
91            int64_t presentationTimeUs,
92            uint32_t flags,
93            AString *errorDetailMsg);
94
95    status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs);
96
97    status_t dequeueOutputBuffer(
98            JNIEnv *env, jobject bufferInfo, size_t *index, int64_t timeoutUs);
99
100    status_t releaseOutputBuffer(
101            size_t index, bool render, bool updatePTS, int64_t timestampNs);
102
103    status_t signalEndOfInputStream();
104
105    status_t getFormat(JNIEnv *env, bool input, jobject *format) const;
106
107    status_t getOutputFormat(JNIEnv *env, size_t index, jobject *format) const;
108
109    status_t getBuffers(
110            JNIEnv *env, bool input, jobjectArray *bufArray) const;
111
112    status_t getBuffer(
113            JNIEnv *env, bool input, size_t index, jobject *buf) const;
114
115    status_t getImage(
116            JNIEnv *env, bool input, size_t index, jobject *image) const;
117
118    status_t getName(JNIEnv *env, jstring *name) const;
119
120    status_t getMetrics(JNIEnv *env, MediaAnalyticsItem * &reply) const;
121
122    status_t setParameters(const sp<AMessage> &params);
123
124    void setVideoScalingMode(int mode);
125
126protected:
127    virtual ~JMediaCodec();
128
129    virtual void onMessageReceived(const sp<AMessage> &msg);
130
131private:
132    enum {
133        kWhatCallbackNotify,
134        kWhatFrameRendered,
135    };
136
137    jclass mClass;
138    jweak mObject;
139    sp<Surface> mSurfaceTextureClient;
140
141    // java objects cached
142    jclass mByteBufferClass;
143    jobject mNativeByteOrderObj;
144    jmethodID mByteBufferOrderMethodID;
145    jmethodID mByteBufferPositionMethodID;
146    jmethodID mByteBufferLimitMethodID;
147    jmethodID mByteBufferAsReadOnlyBufferMethodID;
148
149    sp<ALooper> mLooper;
150    sp<MediaCodec> mCodec;
151
152    sp<AMessage> mCallbackNotification;
153    sp<AMessage> mOnFrameRenderedNotification;
154
155    status_t mInitStatus;
156
157    template <typename T>
158    status_t createByteBufferFromABuffer(
159            JNIEnv *env, bool readOnly, bool clearBuffer, const sp<T> &buffer,
160            jobject *buf) const;
161
162    void cacheJavaObjects(JNIEnv *env);
163    void deleteJavaObjects(JNIEnv *env);
164    void handleCallback(const sp<AMessage> &msg);
165    void handleFrameRenderedNotification(const sp<AMessage> &msg);
166
167    DISALLOW_EVIL_CONSTRUCTORS(JMediaCodec);
168};
169
170}  // namespace android
171
172#endif  // _ANDROID_MEDIA_MEDIACODEC_H_
173