1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* This file defines an NDK API.
* Do not remove methods.
* Do not change method signatures.
* Do not change the value of constants.
* Do not change the size of any of the classes defined in here.
* Do not reference types that are not part of the NDK.
* Do not #include files that aren't part of the NDK.
*/
#ifndef _NDK_MEDIA_CODEC_H
#define _NDK_MEDIA_CODEC_H
#include <android/native_window.h>
#include "NdkMediaCrypto.h"
#include "NdkMediaFormat.h"
#ifdef __cplusplus
extern "C" {
#endif
struct AMediaCodec;
typedef struct AMediaCodec AMediaCodec;
struct AMediaCodecBufferInfo {
int32_t offset;
int32_t size;
int64_t presentationTimeUs;
uint32_t flags;
};
typedef struct AMediaCodecBufferInfo AMediaCodecBufferInfo;
typedef struct AMediaCodecCryptoInfo AMediaCodecCryptoInfo;
enum {
AMEDIACODEC_BUFFER_FLAG_END_OF_STREAM = 4,
AMEDIACODEC_CONFIGURE_FLAG_ENCODE = 1,
AMEDIACODEC_INFO_OUTPUT_BUFFERS_CHANGED = -3,
AMEDIACODEC_INFO_OUTPUT_FORMAT_CHANGED = -2,
AMEDIACODEC_INFO_TRY_AGAIN_LATER = -1
};
/**
* Create codec by name. Use this if you know the exact codec you want to use.
* When configuring, you will need to specify whether to use the codec as an
* encoder or decoder.
*/
AMediaCodec* AMediaCodec_createCodecByName(const char *name);
/**
* Create codec by mime type. Most applications will use this, specifying a
* mime type obtained from media extractor.
*/
AMediaCodec* AMediaCodec_createDecoderByType(const char *mime_type);
/**
* Create encoder by name.
*/
AMediaCodec* AMediaCodec_createEncoderByType(const char *mime_type);
/**
* delete the codec and free its resources
*/
int AMediaCodec_delete(AMediaCodec*);
/**
* Configure the codec. For decoding you would typically get the format from an extractor.
*/
int AMediaCodec_configure(
AMediaCodec*,
const AMediaFormat* format,
ANativeWindow* surface,
AMediaCrypto *crypto,
uint32_t flags);
/**
* Start the codec. A codec must be configured before it can be started, and must be started
* before buffers can be sent to it.
*/
int AMediaCodec_start(AMediaCodec*);
/**
* Stop the codec.
*/
int AMediaCodec_stop(AMediaCodec*);
/*
* Flush the codec's input and output. All indices previously returned from calls to
* AMediaCodec_dequeueInputBuffer and AMediaCodec_dequeueOutputBuffer become invalid.
*/
int AMediaCodec_flush(AMediaCodec*);
/**
* Get an input buffer. The specified buffer index must have been previously obtained from
* dequeueInputBuffer, and not yet queued.
*/
uint8_t* AMediaCodec_getInputBuffer(AMediaCodec*, size_t idx, size_t *out_size);
/**
* Get an output buffer. The specified buffer index must have been previously obtained from
* dequeueOutputBuffer, and not yet queued.
*/
uint8_t* AMediaCodec_getOutputBuffer(AMediaCodec*, size_t idx, size_t *out_size);
/**
* Get the index of the next available input buffer. An app will typically use this with
* getInputBuffer() to get a pointer to the buffer, then copy the data to be encoded or decoded
* into the buffer before passing it to the codec.
*/
ssize_t AMediaCodec_dequeueInputBuffer(AMediaCodec*, int64_t timeoutUs);
/**
* Send the specified buffer to the codec for processing.
*/
int AMediaCodec_queueInputBuffer(AMediaCodec*,
size_t idx, off_t offset, size_t size, uint64_t time, uint32_t flags);
/**
* Send the specified buffer to the codec for processing.
*/
int AMediaCodec_queueSecureInputBuffer(AMediaCodec*,
size_t idx, off_t offset, AMediaCodecCryptoInfo*, uint64_t time, uint32_t flags);
/**
* Get the index of the next available buffer of processed data.
*/
ssize_t AMediaCodec_dequeueOutputBuffer(AMediaCodec*, AMediaCodecBufferInfo *info, int64_t timeoutUs);
AMediaFormat* AMediaCodec_getOutputFormat(AMediaCodec*);
/**
* Release and optionally render the specified buffer.
*/
int AMediaCodec_releaseOutputBuffer(AMediaCodec*, size_t idx, bool render);
typedef void (*OnCodecEvent)(AMediaCodec *codec, void *userdata);
/**
* Set a callback to be called when a new buffer is available, or there was a format
* or buffer change.
* Note that you cannot perform any operations on the mediacodec from within the callback.
* If you need to perform mediacodec operations, you must do so on a different thread.
*/
int AMediaCodec_setNotificationCallback(AMediaCodec*, OnCodecEvent callback, void *userdata);
enum {
AMEDIACODECRYPTOINFO_MODE_CLEAR = 0,
AMEDIACODECRYPTOINFO_MODE_AES_CTR = 1
};
/**
* create an AMediaCodecCryptoInfo from scratch. Use this if you need to use custom
* crypto info, rather than one obtained from AMediaExtractor.
*/
AMediaCodecCryptoInfo *AMediaCodecCryptoInfo_new(
int numsubsamples,
uint8_t key[16],
uint8_t iv[16],
uint32_t mode,
size_t *clearbytes,
size_t *encryptedbytes);
/**
* delete an AMediaCodecCryptoInfo create previously with AMediaCodecCryptoInfo_new, or
* obtained from AMediaExtractor
*/
int AMediaCodecCryptoInfo_delete(AMediaCodecCryptoInfo*);
size_t AMediaCodecCryptoInfo_getNumSubSamples(AMediaCodecCryptoInfo*);
int AMediaCodecCryptoInfo_getKey(AMediaCodecCryptoInfo*, uint8_t *dst);
int AMediaCodecCryptoInfo_getIV(AMediaCodecCryptoInfo*, uint8_t *dst);
uint32_t AMediaCodecCryptoInfo_getMode(AMediaCodecCryptoInfo*);
int AMediaCodecCryptoInfo_getClearBytes(AMediaCodecCryptoInfo*, size_t *dst);
int AMediaCodecCryptoInfo_getEncryptedBytes(AMediaCodecCryptoInfo*, size_t *dst);
#ifdef __cplusplus
} // extern "C"
#endif
#endif //_NDK_MEDIA_CODEC_H
|
