1 /*************************************************************************/
2 /*  video_stream_webm.h                                                  */
3 /*************************************************************************/
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30 
31 #ifndef VIDEO_STREAM_WEBM_H
32 #define VIDEO_STREAM_WEBM_H
33 
34 #include "core/io/resource_loader.h"
35 #include "scene/resources/video_stream.h"
36 
37 class WebMFrame;
38 class WebMDemuxer;
39 class VPXDecoder;
40 class OpusVorbisDecoder;
41 
42 class VideoStreamPlaybackWebm : public VideoStreamPlayback {
43 
44 	GDCLASS(VideoStreamPlaybackWebm, VideoStreamPlayback);
45 
46 	String file_name;
47 	int audio_track;
48 
49 	WebMDemuxer *webm;
50 	VPXDecoder *video;
51 	OpusVorbisDecoder *audio;
52 
53 	WebMFrame **video_frames, *audio_frame;
54 	int video_frames_pos, video_frames_capacity;
55 
56 	int num_decoded_samples, samples_offset;
57 	AudioMixCallback mix_callback;
58 	void *mix_udata;
59 
60 	bool playing, paused;
61 	double delay_compensation;
62 	double time, video_frame_delay, video_pos;
63 
64 	PoolVector<uint8_t> frame_data;
65 	Ref<ImageTexture> texture;
66 
67 	float *pcm;
68 
69 public:
70 	VideoStreamPlaybackWebm();
71 	~VideoStreamPlaybackWebm();
72 
73 	bool open_file(const String &p_file);
74 
75 	virtual void stop();
76 	virtual void play();
77 
78 	virtual bool is_playing() const;
79 
80 	virtual void set_paused(bool p_paused);
81 	virtual bool is_paused() const;
82 
83 	virtual void set_loop(bool p_enable);
84 	virtual bool has_loop() const;
85 
86 	virtual float get_length() const;
87 
88 	virtual float get_playback_position() const;
89 	virtual void seek(float p_time);
90 
91 	virtual void set_audio_track(int p_idx);
92 
93 	virtual Ref<Texture> get_texture() const;
94 	virtual void update(float p_delta);
95 
96 	virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata);
97 	virtual int get_channels() const;
98 	virtual int get_mix_rate() const;
99 
100 private:
101 	inline bool has_enough_video_frames() const;
102 	bool should_process(WebMFrame &video_frame);
103 
104 	void delete_pointers();
105 };
106 
107 /**/
108 
109 class VideoStreamWebm : public VideoStream {
110 
111 	GDCLASS(VideoStreamWebm, VideoStream);
112 
113 	String file;
114 	int audio_track;
115 
116 protected:
117 	static void _bind_methods();
118 
119 public:
120 	VideoStreamWebm();
121 
122 	virtual Ref<VideoStreamPlayback> instance_playback();
123 
124 	virtual void set_file(const String &p_file);
125 	String get_file();
126 	virtual void set_audio_track(int p_track);
127 };
128 
129 class ResourceFormatLoaderWebm : public ResourceFormatLoader {
130 public:
131 	virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
132 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
133 	virtual bool handles_type(const String &p_type) const;
134 	virtual String get_resource_type(const String &p_path) const;
135 };
136 
137 #endif // VIDEO_STREAM_WEBM_H
138