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
|
/*
**
** Copyright (C) 2008 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.
*/
#ifndef ANDROID_VIDEO_FRAME_H
#define ANDROID_VIDEO_FRAME_H
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <utils/Log.h>
namespace android {
// A simple buffer to hold binary data
class MediaAlbumArt
{
public:
MediaAlbumArt(): mSize(0), mData(0) {}
explicit MediaAlbumArt(const char* url) {
mSize = 0;
mData = NULL;
FILE *in = fopen(url, "r");
if (!in) {
return;
}
fseek(in, 0, SEEK_END);
mSize = ftell(in); // Allocating buffer of size equals to the external file size.
if (mSize == 0 || (mData = new uint8_t[mSize]) == NULL) {
fclose(in);
if (mSize != 0) {
mSize = 0;
}
return;
}
rewind(in);
if (fread(mData, 1, mSize, in) != mSize) { // Read failed.
delete[] mData;
mData = NULL;
mSize = 0;
return;
}
fclose(in);
}
MediaAlbumArt(const MediaAlbumArt& copy) {
mSize = copy.mSize;
mData = NULL; // initialize it first
if (mSize > 0 && copy.mData != NULL) {
mData = new uint8_t[copy.mSize];
if (mData != NULL) {
memcpy(mData, copy.mData, mSize);
} else {
mSize = 0;
}
}
}
~MediaAlbumArt() {
if (mData != 0) {
delete[] mData;
}
}
// Intentional public access modifier:
// We have to know the internal structure in order to share it between
// processes?
uint32_t mSize; // Number of bytes in mData
uint8_t* mData; // Actual binary data
};
// Represents a color converted (RGB-based) video frame
// with bitmap pixels stored in FrameBuffer
class VideoFrame
{
public:
VideoFrame(): mWidth(0), mHeight(0), mDisplayWidth(0), mDisplayHeight(0), mSize(0), mData(0) {}
VideoFrame(const VideoFrame& copy) {
mWidth = copy.mWidth;
mHeight = copy.mHeight;
mDisplayWidth = copy.mDisplayWidth;
mDisplayHeight = copy.mDisplayHeight;
mSize = copy.mSize;
mData = NULL; // initialize it first
if (mSize > 0 && copy.mData != NULL) {
mData = new uint8_t[mSize];
if (mData != NULL) {
memcpy(mData, copy.mData, mSize);
} else {
mSize = 0;
}
}
}
~VideoFrame() {
if (mData != 0) {
delete[] mData;
}
}
// Intentional public access modifier:
uint32_t mWidth;
uint32_t mHeight;
uint32_t mDisplayWidth;
uint32_t mDisplayHeight;
uint32_t mSize; // Number of bytes in mData
uint8_t* mData; // Actual binary data
int32_t mRotationAngle; // rotation angle, clockwise
};
}; // namespace android
#endif // ANDROID_VIDEO_FRAME_H
|
