godot/scene/resources/video_stream.h
reduz d1ddee2258 Implement BPM support
Based on #62896, only implements the BPM support part.

* Implements BPM support in the AudioStreamOGG/MP3 importers.
* Can select BPM/Bar Size and total beats in a song file, as well as edit looping points.
* Looping is now BPM aware
* Added a special importer UI for configuring this.
* Added a special preview showing the audio waveform as well as the playback position in the resource picker.
* Renamed `AudioStream::instance` to `instantiate` for correctness.
2022-07-23 07:31:17 +02:00

79 lines
3.4 KiB
C++

/*************************************************************************/
/* video_stream.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_H
#define VIDEO_STREAM_H
#include "scene/resources/texture.h"
class VideoStreamPlayback : public Resource {
GDCLASS(VideoStreamPlayback, Resource);
public:
typedef int (*AudioMixCallback)(void *p_udata, const float *p_data, int p_frames);
virtual void stop() = 0;
virtual void play() = 0;
virtual bool is_playing() const = 0;
virtual void set_paused(bool p_paused) = 0;
virtual bool is_paused() const = 0;
virtual void set_loop(bool p_enable) = 0;
virtual bool has_loop() const = 0;
virtual float get_length() const = 0;
virtual float get_playback_position() const = 0;
virtual void seek(float p_time) = 0;
virtual void set_audio_track(int p_idx) = 0;
virtual Ref<Texture2D> get_texture() const = 0;
virtual void update(float p_delta) = 0;
virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata) = 0;
virtual int get_channels() const = 0;
virtual int get_mix_rate() const = 0;
};
class VideoStream : public Resource {
GDCLASS(VideoStream, Resource);
OBJ_SAVE_TYPE(VideoStream); // Saves derived classes with common type so they can be interchanged.
public:
virtual void set_audio_track(int p_track) = 0;
virtual Ref<VideoStreamPlayback> instantiate_playback() = 0;
};
#endif