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/*************************************************************************/
/* video_stream_gdnative.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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_GDNATIVE_H
#define VIDEO_STREAM_GDNATIVE_H
#include "../gdnative.h"
#include "core/os/file_access.h"
#include "scene/resources/texture.h"
#include "scene/resources/video_stream.h"
struct VideoDecoderGDNative {
const godot_videodecoder_interface_gdnative *interface = nullptr;
String plugin_name = "none";
Vector<String> supported_extensions;
VideoDecoderGDNative() {}
VideoDecoderGDNative(const godot_videodecoder_interface_gdnative *p_interface) :
interface(p_interface),
plugin_name(p_interface->get_plugin_name()) {
_get_supported_extensions();
}
private:
void _get_supported_extensions() {
supported_extensions.clear();
int num_ext;
const char **supported_ext = interface->get_supported_extensions(&num_ext);
for (int i = 0; i < num_ext; i++) {
supported_extensions.push_back(supported_ext[i]);
}
}
};
class VideoDecoderServer {
private:
Vector<VideoDecoderGDNative *> decoders;
Map<String, int> extensions;
static VideoDecoderServer *instance;
public:
static VideoDecoderServer *get_instance() {
return instance;
}
const Map<String, int> &get_extensions() {
return extensions;
}
void register_decoder_interface(const godot_videodecoder_interface_gdnative *p_interface) {
VideoDecoderGDNative *decoder = memnew(VideoDecoderGDNative(p_interface));
int index = decoders.size();
for (int i = 0; i < decoder->supported_extensions.size(); i++) {
extensions[decoder->supported_extensions[i]] = index;
}
decoders.push_back(decoder);
}
VideoDecoderGDNative *get_decoder(const String &extension) {
if (extensions.size() == 0 || !extensions.has(extension)) {
return nullptr;
}
return decoders[extensions[extension]];
}
VideoDecoderServer() {
instance = this;
}
~VideoDecoderServer() {
for (int i = 0; i < decoders.size(); i++) {
memdelete(decoders[i]);
}
decoders.clear();
instance = nullptr;
}
};
class VideoStreamPlaybackGDNative : public VideoStreamPlayback {
GDCLASS(VideoStreamPlaybackGDNative, VideoStreamPlayback);
Ref<ImageTexture> texture;
bool playing = false;
bool paused = false;
Vector2 texture_size;
void *mix_udata = nullptr;
AudioMixCallback mix_callback = nullptr;
int num_channels = -1;
float time = 0;
bool seek_backward = false;
int mix_rate = 0;
double delay_compensation = 0;
float *pcm = nullptr;
int pcm_write_idx = 0;
int samples_decoded = 0;
void cleanup();
void update_texture();
protected:
String file_name;
FileAccess *file = nullptr;
const godot_videodecoder_interface_gdnative *interface = nullptr;
void *data_struct = nullptr;
public:
VideoStreamPlaybackGDNative();
~VideoStreamPlaybackGDNative();
void set_interface(const godot_videodecoder_interface_gdnative *p_interface);
bool open_file(const String &p_file);
virtual void stop() override;
virtual void play() override;
virtual bool is_playing() const override;
virtual void set_paused(bool p_paused) override;
virtual bool is_paused() const override;
virtual void set_loop(bool p_enable) override;
virtual bool has_loop() const override;
virtual float get_length() const override;
virtual float get_playback_position() const override;
virtual void seek(float p_time) override;
virtual void set_audio_track(int p_idx) override;
//virtual int mix(int16_t* p_buffer,int p_frames)=0;
virtual Ref<Texture2D> get_texture() const override;
virtual void update(float p_delta) override;
virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata) override;
virtual int get_channels() const override;
virtual int get_mix_rate() const override;
};
class VideoStreamGDNative : public VideoStream {
GDCLASS(VideoStreamGDNative, VideoStream);
String file;
int audio_track = 0;
protected:
static void
_bind_methods();
public:
void set_file(const String &p_file);
String get_file();
virtual void set_audio_track(int p_track) override;
virtual Ref<VideoStreamPlayback> instance_playback() override;
VideoStreamGDNative() {}
};
class ResourceFormatLoaderVideoStreamGDNative : public ResourceFormatLoader {
public:
virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = nullptr, bool p_use_sub_threads = false, float *r_progress = nullptr, bool p_no_cache = false);
virtual void get_recognized_extensions(List<String> *p_extensions) const;
virtual bool handles_type(const String &p_type) const;
virtual String get_resource_type(const String &p_path) const;
};
#endif
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