godot/modules/theora/video_stream_theora.h
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader!
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

200 lines
5.4 KiB
C++

/*************************************************************************/
/* video_stream_theora.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 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_THEORA_H
#define VIDEO_STREAM_THEORA_H
#include "io/resource_loader.h"
#include "os/file_access.h"
#include "os/thread.h"
#include "os/semaphore.h"
#include "ring_buffer.h"
#include "scene/resources/video_stream.h"
#include <theora/theoradec.h>
#include <vorbis/codec.h>
//#define THEORA_USE_THREAD_STREAMING
class VideoStreamPlaybackTheora : public VideoStreamPlayback {
OBJ_TYPE(VideoStreamPlaybackTheora, VideoStreamPlayback);
enum {
MAX_FRAMES = 4,
};
//Image frames[MAX_FRAMES];
Image::Format format;
DVector<uint8_t> frame_data;
int frames_pending;
FileAccess* file;
String file_name;
int audio_frames_wrote;
Point2i size;
int buffer_data();
int queue_page(ogg_page *page);
void video_write(void);
float get_time() const;
bool theora_eos;
bool vorbis_eos;
ogg_sync_state oy;
ogg_page og;
ogg_stream_state vo;
ogg_stream_state to;
th_info ti;
th_comment tc;
th_dec_ctx *td;
vorbis_info vi;
vorbis_dsp_state vd;
vorbis_block vb;
vorbis_comment vc;
th_pixel_fmt px_fmt;
double videobuf_time;
int pp_inc;
int theora_p;
int vorbis_p;
int pp_level_max;
int pp_level;
int videobuf_ready;
bool playing;
bool buffering;
double last_update_time;
double time;
double delay_compensation;
Ref<ImageTexture> texture;
AudioMixCallback mix_callback;
void* mix_udata;
bool paused;
#ifdef THEORA_USE_THREAD_STREAMING
enum {
RB_SIZE_KB=1024
};
RingBuffer<uint8_t> ring_buffer;
Vector<uint8_t> read_buffer;
bool thread_eof;
Semaphore *thread_sem;
Thread *thread;
volatile bool thread_exit;
static void _streaming_thread(void *ud);
#endif
int audio_track;
protected:
void clear();
public:
virtual void play();
virtual void stop();
virtual bool is_playing() const;
virtual void set_paused(bool p_paused);
virtual bool is_paused(bool p_paused) const;
virtual void set_loop(bool p_enable);
virtual bool has_loop() const;
virtual float get_length() const;
virtual String get_stream_name() const;
virtual int get_loop_count() const;
virtual float get_pos() const;
virtual void seek_pos(float p_time);
void set_file(const String& p_file);
virtual Ref<Texture> get_texture();
virtual void update(float p_delta);
virtual void set_mix_callback(AudioMixCallback p_callback,void *p_userdata);
virtual int get_channels() const;
virtual int get_mix_rate() const;
virtual void set_audio_track(int p_idx);
VideoStreamPlaybackTheora();
~VideoStreamPlaybackTheora();
};
class VideoStreamTheora : public VideoStream {
OBJ_TYPE(VideoStreamTheora,VideoStream);
String file;
int audio_track;
public:
Ref<VideoStreamPlayback> instance_playback() {
Ref<VideoStreamPlaybackTheora> pb = memnew( VideoStreamPlaybackTheora );
pb->set_audio_track(audio_track);
pb->set_file(file);
return pb;
}
void set_file(const String& p_file) { file=p_file; }
void set_audio_track(int p_track) { audio_track=p_track; }
VideoStreamTheora() { audio_track=0; }
};
class ResourceFormatLoaderVideoStreamTheora : public ResourceFormatLoader {
public:
virtual RES load(const String &p_path,const String& p_original_path="",Error *r_error=NULL);
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