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
199
200
201
202
203
204
205
206
207 | /**************************************************************************/
/* video_stream_gdnative.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef VIDEO_STREAM_GDNATIVE_H
#define VIDEO_STREAM_GDNATIVE_H
#include "../gdnative.h"
#include "core/os/file_access.h"
#include "scene/resources/texture.h"
#include "scene/resources/video_stream.h"
struct VideoDecoderGDNative {
const godot_videodecoder_interface_gdnative *interface;
String plugin_name;
Vector<String> supported_extensions;
VideoDecoderGDNative() :
interface(nullptr),
plugin_name("none") {}
VideoDecoderGDNative(const godot_videodecoder_interface_gdnative *p_interface) :<--- Struct 'VideoDecoderGDNative' has a constructor with 1 argument that is not explicit. [+]Struct 'VideoDecoderGDNative' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
interface(p_interface),
plugin_name(p_interface->get_plugin_name()) {
_get_supported_extensions();
}
private:
void _get_supported_extensions() {
supported_extensions.clear();
int num_ext;
const char **supported_ext = interface->get_supported_extensions(&num_ext);
for (int i = 0; i < num_ext; i++) {
supported_extensions.push_back(supported_ext[i]);
}
}
};
class VideoDecoderServer {
private:
Vector<VideoDecoderGDNative *> decoders;
Map<String, int> extensions;
static VideoDecoderServer *instance;
public:
static VideoDecoderServer *get_instance() {
return instance;
}
const Map<String, int> &get_extensions() {
return extensions;
}
void register_decoder_interface(const godot_videodecoder_interface_gdnative *p_interface) {
VideoDecoderGDNative *decoder = memnew(VideoDecoderGDNative(p_interface));
int index = decoders.size();
for (int i = 0; i < decoder->supported_extensions.size(); i++) {
extensions[decoder->supported_extensions[i]] = index;
}
decoders.push_back(decoder);
}
VideoDecoderGDNative *get_decoder(const String &extension) {
if (extensions.size() == 0 || !extensions.has(extension)) {
return nullptr;
}
return decoders[extensions[extension]];
}
VideoDecoderServer() {
instance = this;
}
~VideoDecoderServer() {
for (int i = 0; i < decoders.size(); i++) {
memdelete(decoders[i]);
}
decoders.clear();
instance = nullptr;
}
};
class VideoStreamPlaybackGDNative : public VideoStreamPlayback {
GDCLASS(VideoStreamPlaybackGDNative, VideoStreamPlayback);
Ref<ImageTexture> texture;
bool playing;
bool paused;
Vector2 texture_size;
void *mix_udata;
AudioMixCallback mix_callback;
int num_channels;
float time;
bool seek_backward;
int mix_rate;
double delay_compensation;
float *pcm;
int pcm_write_idx;
int samples_decoded;
void cleanup();
void update_texture();
protected:
String file_name;
FileAccess *file;
const godot_videodecoder_interface_gdnative *interface;
void *data_struct;
public:
VideoStreamPlaybackGDNative();
~VideoStreamPlaybackGDNative();
void set_interface(const godot_videodecoder_interface_gdnative *p_interface);
bool open_file(const String &p_file);
virtual void stop();
virtual void play();
virtual bool is_playing() const;
virtual void set_paused(bool p_paused);
virtual bool is_paused() const;
virtual void set_loop(bool p_enable);
virtual bool has_loop() const;
virtual float get_length() const;
virtual float get_playback_position() const;
virtual void seek(float p_time);
virtual void set_audio_track(int p_idx);
//virtual int mix(int16_t* p_buffer,int p_frames)=0;
virtual Ref<Texture> get_texture() const;
virtual void update(float p_delta);
virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata);
virtual int get_channels() const;
virtual int get_mix_rate() const;
};
class VideoStreamGDNative : public VideoStream {
GDCLASS(VideoStreamGDNative, VideoStream);
String file;
int audio_track;
protected:
static void
_bind_methods();
public:
void set_file(const String &p_file);
String get_file();
virtual void set_audio_track(int p_track);
virtual Ref<VideoStreamPlayback> instance_playback();
VideoStreamGDNative() {}<--- Member variable 'VideoStreamGDNative::audio_track' is not initialized in the constructor.
};
class ResourceFormatLoaderVideoStreamGDNative : public ResourceFormatLoader {
public:
virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = nullptr, bool p_no_subresource_cache = false);
virtual void get_recognized_extensions(List<String> *p_extensions) const;
virtual bool handles_type(const String &p_type) const;
virtual String get_resource_type(const String &p_path) const;
};
#endif // VIDEO_STREAM_GDNATIVE_H
|