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
|
/*************************************************************************/
/* video_stream_theora.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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_THEORA_H
#define VIDEO_STREAM_THEORA_H
#include "core/io/file_access.h"
#include "core/io/resource_loader.h"
#include "core/os/semaphore.h"
#include "core/os/thread.h"
#include "core/templates/ring_buffer.h"
#include "core/templates/safe_refcount.h"
#include "scene/resources/video_stream.h"
#include "servers/audio_server.h"
#include <theora/theoradec.h>
#include <vorbis/codec.h>
//#define THEORA_USE_THREAD_STREAMING
class VideoStreamPlaybackTheora : public VideoStreamPlayback {
GDCLASS(VideoStreamPlaybackTheora, VideoStreamPlayback);
enum {
MAX_FRAMES = 4,
};
//Image frames[MAX_FRAMES];
Image::Format format = Image::Format::FORMAT_L8;
Vector<uint8_t> frame_data;
int frames_pending = 0;
Ref<FileAccess> file;
String file_name;
int audio_frames_wrote = 0;
Point2i size;
int buffer_data();
int queue_page(ogg_page *page);
void video_write();
float get_time() const;
bool theora_eos = false;
bool vorbis_eos = false;
ogg_sync_state oy;
ogg_page og;
ogg_stream_state vo;
ogg_stream_state to;
th_info ti;
th_comment tc;
th_dec_ctx *td = nullptr;
vorbis_info vi;
vorbis_dsp_state vd;
vorbis_block vb;
vorbis_comment vc;
th_pixel_fmt px_fmt;
double videobuf_time = 0;
int pp_inc = 0;
int theora_p = 0;
int vorbis_p = 0;
int pp_level_max = 0;
int pp_level = 0;
int videobuf_ready = 0;
bool playing = false;
bool buffering = false;
double last_update_time = 0;
double time = 0;
double delay_compensation = 0;
Ref<ImageTexture> texture;
AudioMixCallback mix_callback = nullptr;
void *mix_udata = nullptr;
bool paused = false;
#ifdef THEORA_USE_THREAD_STREAMING
enum {
RB_SIZE_KB = 1024
};
RingBuffer<uint8_t> ring_buffer;
Vector<uint8_t> read_buffer;
bool thread_eof = false;
Semaphore *thread_sem = nullptr;
Thread thread;
SafeFlag thread_exit;
static void _streaming_thread(void *ud);
#endif
int audio_track = 0;
protected:
void clear();
public:
virtual void play() override;
virtual void stop() override;
virtual bool is_playing() const override;
virtual void set_paused(bool p_paused) override;
virtual bool is_paused() const override;
virtual void set_loop(bool p_enable) override;
virtual bool has_loop() const override;
virtual float get_length() const override;
virtual String get_stream_name() const;
virtual int get_loop_count() const;
virtual float get_playback_position() const override;
virtual void seek(float p_time) override;
void set_file(const String &p_file);
virtual Ref<Texture2D> get_texture() const override;
virtual void update(float p_delta) override;
virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata) override;
virtual int get_channels() const override;
virtual int get_mix_rate() const override;
virtual void set_audio_track(int p_idx) override;
VideoStreamPlaybackTheora();
~VideoStreamPlaybackTheora();
};
class VideoStreamTheora : public VideoStream {
GDCLASS(VideoStreamTheora, VideoStream);
String file;
int audio_track;
protected:
static void _bind_methods();
public:
Ref<VideoStreamPlayback> instantiate_playback() override {
Ref<VideoStreamPlaybackTheora> pb = memnew(VideoStreamPlaybackTheora);
pb->set_audio_track(audio_track);
pb->set_file(file);
return pb;
}
void set_file(const String &p_file) { file = p_file; }
String get_file() { return file; }
void set_audio_track(int p_track) override { audio_track = p_track; }
VideoStreamTheora() { audio_track = 0; }
};
class ResourceFormatLoaderTheora : public ResourceFormatLoader {
public:
virtual Ref<Resource> load(const String &p_path, const String &p_original_path = "", Error *r_error = nullptr, bool p_use_sub_threads = false, float *r_progress = nullptr, CacheMode p_cache_mode = CACHE_MODE_REUSE);
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_THEORA_H
|