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_OGGDEMUXER_H
22#define LOVE_VIDEO_THEORA_OGGDEMUXER_H
23
24// STL
25#include <functional>
26
27// LOVE
28#include "filesystem/File.h"
29
30// OGG
31#include <ogg/ogg.h>
32
33namespace love
34{
35namespace video
36{
37namespace theora
38{
39
40class OggDemuxer
41{
42public:
43 enum StreamType
44 {
45 TYPE_THEORA,
46 TYPE_UNKNOWN,
47 };
48
49 OggDemuxer(love::filesystem::File *file);
50 ~OggDemuxer();
51
52 StreamType findStream();
53 bool readPacket(ogg_packet &packet, bool mustSucceed = false);
54 void resync();
55 bool isEos() const;
56 const std::string &getFilename() const;
57 bool seek(ogg_packet &packet, double target, std::function<double(int64)> getTime);
58
59private:
60 StrongRef<love::filesystem::File> file;
61
62 ogg_sync_state sync;
63 ogg_stream_state stream;
64 ogg_page page;
65
66 bool streamInited;
67 int videoSerial;
68 bool eos;
69
70 bool readPage(bool erroreof = false);
71 StreamType determineType();
72}; // OggDemuxer
73
74} // theora
75} // video
76} // love
77
78#endif // LOVE_VIDEO_THEORA_OGGDEMUXER_H
79