1/**
2 * Copyright (c) 2006-2023 LOVE Development Team
3 *
4 * This software is provided 'as-is', without any express or implied
5 * warranty. In no event will the authors be held liable for any damages
6 * arising from the use of this software.
7 *
8 * Permission is granted to anyone to use this software for any purpose,
9 * including commercial applications, and to alter it and redistribute it
10 * freely, subject to the following restrictions:
11 *
12 * 1. The origin of this software must not be misrepresented; you must not
13 * claim that you wrote the original software. If you use this software
14 * in a product, an acknowledgment in the product documentation would be
15 * appreciated but is not required.
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
18 * 3. This notice may not be removed or altered from any source distribution.
19 **/
20
21#ifndef LOVE_VIDEO_THEORA_VIDEOSTREAM_H
22#define LOVE_VIDEO_THEORA_VIDEOSTREAM_H
23
24#include "video/VideoStream.h"
25
26// LOVE
27#include "common/int.h"
28#include "filesystem/File.h"
29#include "thread/threads.h"
30#include "OggDemuxer.h"
31
32// OGG/Theora
33#include <ogg/ogg.h>
34#include <theora/codec.h>
35#include <theora/theoradec.h>
36
37namespace love
38{
39namespace video
40{
41namespace theora
42{
43
44class TheoraVideoStream : public love::video::VideoStream
45{
46public:
47 TheoraVideoStream(love::filesystem::File *file);
48 ~TheoraVideoStream();
49
50 const void *getFrontBuffer() const;
51 size_t getSize() const;
52 void fillBackBuffer();
53 bool swapBuffers();
54
55 int getWidth() const;
56 int getHeight() const;
57 const std::string &getFilename() const;
58 void setSync(FrameSync *frameSync);
59
60 bool isPlaying() const;
61
62 void threadedFillBackBuffer(double dt);
63
64private:
65 OggDemuxer demuxer;
66
67 bool headerParsed;
68
69 ogg_packet packet;
70
71 th_info videoInfo;
72 th_dec_ctx *decoder;
73
74 Frame *frontBuffer;
75 Frame *backBuffer;
76 unsigned int yPlaneXOffset;
77 unsigned int cPlaneXOffset;
78 unsigned int yPlaneYOffset;
79 unsigned int cPlaneYOffset;
80
81 love::thread::MutexRef bufferMutex;
82 bool frameReady;
83
84 double lastFrame;
85 double nextFrame;
86
87 void parseHeader();
88 void seekDecoder(double target);
89}; // TheoraVideoStream
90
91} // theora
92} // video
93} // love
94
95#endif // LOVE_VIDEO_THEORA_VIDEOSTREAM_H
96