1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef OGG_STREAM_H
#define OGG_STREAM_H
#include "System/Misc/SpringTime.h"
#include <al.h>
#include <ogg/ogg.h>
#include <vorbis/vorbisfile.h>
#include <string>
#include <vector>
class COggStream
{
public:
COggStream(ALuint _source = 0);
~COggStream() { Stop(); }
void Play(const std::string& path, float volume);
void Stop();
void Update();
float GetPlayTime() const { return (msecsPlayed.toSecsf()); }
float GetTotalTime();
bool TogglePause();
bool Valid() const { return (source != 0 && vorbisInfo != nullptr); }
bool IsFinished() { return !Valid() || (GetPlayTime() >= GetTotalTime()); }
const std::vector<std::string>& VorbisTags() const { return vorbisTags; }
private:
void DisplayInfo();
bool IsPlaying();
bool StartPlaying();
bool DecodeStream(ALuint buffer);
void EmptyBuffers();
void ReleaseBuffers();
/**
* @brief Decode next part of the stream and queue it for playing
* @return whether it is the end of the stream
* (check for IsPlaying() whether the complete stream was played)
*/
bool UpdateBuffers();
OggVorbis_File ovFile;
vorbis_info* vorbisInfo;
static constexpr unsigned int BUFFER_SIZE = 512 * 1024; // 512KB
static constexpr unsigned int NUM_BUFFERS = 2;
char pcmDecodeBuffer[BUFFER_SIZE];
ALuint buffers[NUM_BUFFERS];
ALuint source;
ALenum format;
bool stopped;
bool paused;
spring_time msecsPlayed;
spring_time lastTick;
std::vector<std::string> vorbisTags;
std::string vendor;
};
#endif // OGG_STREAM_H
|
