1 | /**************************************************************************/ |
2 | /* video_stream.h */ |
3 | /**************************************************************************/ |
4 | /* This file is part of: */ |
5 | /* GODOT ENGINE */ |
6 | /* https://godotengine.org */ |
7 | /**************************************************************************/ |
8 | /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ |
9 | /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ |
10 | /* */ |
11 | /* Permission is hereby granted, free of charge, to any person obtaining */ |
12 | /* a copy of this software and associated documentation files (the */ |
13 | /* "Software"), to deal in the Software without restriction, including */ |
14 | /* without limitation the rights to use, copy, modify, merge, publish, */ |
15 | /* distribute, sublicense, and/or sell copies of the Software, and to */ |
16 | /* permit persons to whom the Software is furnished to do so, subject to */ |
17 | /* the following conditions: */ |
18 | /* */ |
19 | /* The above copyright notice and this permission notice shall be */ |
20 | /* included in all copies or substantial portions of the Software. */ |
21 | /* */ |
22 | /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ |
23 | /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ |
24 | /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ |
25 | /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ |
26 | /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ |
27 | /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ |
28 | /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
29 | /**************************************************************************/ |
30 | |
31 | #ifndef VIDEO_STREAM_H |
32 | #define VIDEO_STREAM_H |
33 | |
34 | #include "core/io/file_access.h" |
35 | #include "scene/resources/texture.h" |
36 | |
37 | class VideoStreamPlayback : public Resource { |
38 | GDCLASS(VideoStreamPlayback, Resource); |
39 | |
40 | public: |
41 | typedef int (*AudioMixCallback)(void *p_udata, const float *p_data, int p_frames); |
42 | |
43 | protected: |
44 | AudioMixCallback mix_callback = nullptr; |
45 | void *mix_udata = nullptr; |
46 | mutable int _channel_count = 0; // Used only to assist with bounds checking in mix_audio. |
47 | |
48 | static void _bind_methods(); |
49 | GDVIRTUAL0(_stop); |
50 | GDVIRTUAL0(_play); |
51 | GDVIRTUAL0RC(bool, _is_playing); |
52 | GDVIRTUAL1(_set_paused, bool); |
53 | GDVIRTUAL0RC(bool, _is_paused); |
54 | GDVIRTUAL0RC(double, _get_length); |
55 | GDVIRTUAL0RC(double, _get_playback_position); |
56 | GDVIRTUAL1(_seek, double); |
57 | GDVIRTUAL1(_set_audio_track, int); |
58 | GDVIRTUAL0RC(Ref<Texture2D>, _get_texture); |
59 | GDVIRTUAL1(_update, double); |
60 | GDVIRTUAL0RC(int, _get_channels); |
61 | GDVIRTUAL0RC(int, _get_mix_rate); |
62 | |
63 | int mix_audio(int num_frames, PackedFloat32Array buffer = {}, int offset = 0); |
64 | |
65 | public: |
66 | VideoStreamPlayback(); |
67 | virtual ~VideoStreamPlayback(); |
68 | |
69 | virtual void stop(); |
70 | virtual void play(); |
71 | |
72 | virtual bool is_playing() const; |
73 | |
74 | virtual void set_paused(bool p_paused); |
75 | virtual bool is_paused() const; |
76 | |
77 | virtual double get_length() const; |
78 | |
79 | virtual double get_playback_position() const; |
80 | virtual void seek(double p_time); |
81 | |
82 | virtual void set_audio_track(int p_idx); |
83 | |
84 | virtual Ref<Texture2D> get_texture() const; |
85 | virtual void update(double p_delta); |
86 | |
87 | virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata); |
88 | virtual int get_channels() const; |
89 | virtual int get_mix_rate() const; |
90 | }; |
91 | |
92 | class VideoStream : public Resource { |
93 | GDCLASS(VideoStream, Resource); |
94 | OBJ_SAVE_TYPE(VideoStream); |
95 | |
96 | protected: |
97 | static void |
98 | _bind_methods(); |
99 | |
100 | GDVIRTUAL0R(Ref<VideoStreamPlayback>, _instantiate_playback); |
101 | |
102 | String file; |
103 | int audio_track = 0; |
104 | |
105 | public: |
106 | void set_file(const String &p_file); |
107 | String get_file(); |
108 | |
109 | virtual void set_audio_track(int p_track); |
110 | virtual Ref<VideoStreamPlayback> instantiate_playback(); |
111 | |
112 | VideoStream(); |
113 | ~VideoStream(); |
114 | }; |
115 | |
116 | #endif // VIDEO_STREAM_H |
117 | |