godot/modules/webm/video_stream_webm.h
2020-07-10 13:56:54 +01:00

135 lines
4.9 KiB
C++

/*************************************************************************/
/* video_stream_webm.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_WEBM_H
#define VIDEO_STREAM_WEBM_H
#include "core/io/resource_loader.h"
#include "scene/resources/video_stream.h"
class WebMFrame;
class WebMDemuxer;
class VPXDecoder;
class OpusVorbisDecoder;
class VideoStreamPlaybackWebm : public VideoStreamPlayback {
GDCLASS(VideoStreamPlaybackWebm, VideoStreamPlayback);
String file_name;
int audio_track = 0;
WebMDemuxer *webm = nullptr;
VPXDecoder *video = nullptr;
OpusVorbisDecoder *audio = nullptr;
WebMFrame **video_frames = nullptr, *audio_frame = nullptr;
int video_frames_pos = 0, video_frames_capacity = 0;
int num_decoded_samples = 0, samples_offset = -1;
AudioMixCallback mix_callback = nullptr;
void *mix_udata = nullptr;
bool playing = false, paused = false;
double delay_compensation = 0.0;
double time = 0.0, video_frame_delay = 0.0, video_pos = 0.0;
Vector<uint8_t> frame_data;
Ref<ImageTexture> texture;
float *pcm = nullptr;
public:
VideoStreamPlaybackWebm();
~VideoStreamPlaybackWebm();
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 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;
private:
inline bool has_enough_video_frames() const;
bool should_process(WebMFrame &video_frame);
void delete_pointers();
};
/**/
class VideoStreamWebm : public VideoStream {
GDCLASS(VideoStreamWebm, VideoStream);
String file;
int audio_track = 0;
protected:
static void _bind_methods();
public:
VideoStreamWebm();
virtual Ref<VideoStreamPlayback> instance_playback() override;
virtual void set_file(const String &p_file);
String get_file();
virtual void set_audio_track(int p_track) override;
};
class ResourceFormatLoaderWebm : 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 // VIDEO_STREAM_WEBM_H