godot/scene/gui/video_stream_player.h
anish bhobe 42a9c33fad Updates VideoDecoder plugin API to GDExtension.
Adds VideoStream and relevant resource loaders to migrate
external GDNative plugins to GDExtension.

Adds a VideoStreamLoader as a specialization of ResourceFormatLoader
as ClassDB::is_parent_class is inaccessible from GDExtension currently.

Using Object* instead of Ref<T> in order to avoid the refcount bug
(godotengine/godot-cpp#652)
Also another bug is in ResourceLoader in use on the extension side that
requires fixing.
2023-01-30 18:39:29 -08:00

126 lines
4.4 KiB
C++

/**************************************************************************/
/* video_stream_player.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_PLAYER_H
#define VIDEO_STREAM_PLAYER_H
#include "scene/gui/control.h"
#include "scene/resources/video_stream.h"
#include "servers/audio/audio_rb_resampler.h"
#include "servers/audio_server.h"
class VideoStreamPlayer : public Control {
GDCLASS(VideoStreamPlayer, Control);
struct Output {
AudioFrame vol;
int bus_index = 0;
Viewport *viewport = nullptr; //pointer only used for reference to previous mix
};
Ref<VideoStreamPlayback> playback;
Ref<VideoStream> stream;
int sp_get_channel_count() const;
bool mix(AudioFrame *p_buffer, int p_frames);
RID stream_rid;
Ref<ImageTexture> texture;
AudioRBResampler resampler;
Vector<AudioFrame> mix_buffer;
int wait_resampler = 0;
int wait_resampler_limit = 2;
bool paused = false;
bool paused_from_tree = false;
bool autoplay = false;
float volume = 1.0;
double last_audio_time = 0.0;
bool expand = false;
int buffering_ms = 500;
int audio_track = 0;
int bus_index = 0;
StringName bus;
void _mix_audio();
static int _audio_mix_callback(void *p_udata, const float *p_data, int p_frames);
static void _mix_audios(void *p_self);
protected:
static void _bind_methods();
void _notification(int p_notification);
void _validate_property(PropertyInfo &p_property) const;
public:
Size2 get_minimum_size() const override;
void set_expand(bool p_expand);
bool has_expand() const;
Ref<Texture2D> get_video_texture() const;
void set_stream(const Ref<VideoStream> &p_stream);
Ref<VideoStream> get_stream() const;
void play();
void stop();
bool is_playing() const;
void set_paused(bool p_paused);
bool is_paused() const;
void set_volume(float p_vol);
float get_volume() const;
void set_volume_db(float p_db);
float get_volume_db() const;
String get_stream_name() const;
double get_stream_position() const;
void set_stream_position(double p_position);
void set_autoplay(bool p_enable);
bool has_autoplay() const;
void set_audio_track(int p_track);
int get_audio_track() const;
void set_buffering_msec(int p_msec);
int get_buffering_msec() const;
void set_bus(const StringName &p_bus);
StringName get_bus() const;
VideoStreamPlayer();
~VideoStreamPlayer();
};
#endif // VIDEO_STREAM_PLAYER_H