initial commit, 4.5 stable

scene/resources/video_stream.h

@@ -0,0 +1,111 @@
+/**************************************************************************/
+/*  video_stream.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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#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);
+
+protected:
+	AudioMixCallback mix_callback = nullptr;
+	void *mix_udata = nullptr;
+	mutable int _channel_count = 0; // Used only to assist with bounds checking in mix_audio.
+
+	static void _bind_methods();
+	GDVIRTUAL0(_stop);
+	GDVIRTUAL0(_play);
+	GDVIRTUAL0RC(bool, _is_playing);
+	GDVIRTUAL1(_set_paused, bool);
+	GDVIRTUAL0RC(bool, _is_paused);
+	GDVIRTUAL0RC(double, _get_length);
+	GDVIRTUAL0RC(double, _get_playback_position);
+	GDVIRTUAL1(_seek, double);
+	GDVIRTUAL1(_set_audio_track, int);
+	GDVIRTUAL0RC(Ref<Texture2D>, _get_texture);
+	GDVIRTUAL1_REQUIRED(_update, double);
+	GDVIRTUAL0RC(int, _get_channels);
+	GDVIRTUAL0RC(int, _get_mix_rate);
+
+	int mix_audio(int num_frames, PackedFloat32Array buffer = {}, int offset = 0);
+
+public:
+	VideoStreamPlayback();
+	virtual ~VideoStreamPlayback();
+
+	virtual void stop();
+	virtual void play();
+
+	virtual bool is_playing() const;
+
+	virtual void set_paused(bool p_paused);
+	virtual bool is_paused() const;
+
+	virtual double get_length() const;
+
+	virtual double get_playback_position() const;
+	virtual void seek(double p_time);
+
+	virtual void set_audio_track(int p_idx);
+
+	virtual Ref<Texture2D> get_texture() const;
+	virtual void update(double p_delta);
+
+	virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata);
+	virtual int get_channels() const;
+	virtual int get_mix_rate() const;
+};
+
+class VideoStream : public Resource {
+	GDCLASS(VideoStream, Resource);
+	OBJ_SAVE_TYPE(VideoStream);
+
+protected:
+	static void _bind_methods();
+
+	GDVIRTUAL0R(Ref<VideoStreamPlayback>, _instantiate_playback);
+
+	String file;
+	int audio_track = 0;
+
+public:
+	void set_file(const String &p_file);
+	String get_file();
+
+	virtual void set_audio_track(int p_track);
+	virtual Ref<VideoStreamPlayback> instantiate_playback();
+
+	VideoStream();
+	~VideoStream();
+};