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Merge pull request #587 from Sergeanur/opus

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OPUS support for OpenAL
This commit is contained in:
Sergeanur
2020-07-29 15:52:17 +03:00
committed by GitHub
parent e13d80a4eb e259bb6609
commit 57d5782588
8 changed files with 238 additions and 10 deletions
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106
src/audio/oal/stream.cpp
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@ -4,6 +4,9 @@
#include "stream.h"
#include "sampman.h"
#ifdef AUDIO_OPUS
#include <opusfile.h>
#else
#ifdef _WIN32
// TODO: This is due to version difference of 32-bit libmpg123 and 64-bit libmpg123, fix it
@ -17,7 +20,9 @@ typedef long ssize_t;
#endif
#include <sndfile.h>
#include <mpg123.h>
#endif
#ifndef AUDIO_OPUS
class CSndFile : public IDecoder
{
SNDFILE *m_pfSound;
@ -177,15 +182,111 @@ public:
return (uint32)size;
}
};
#else
class COpusFile : public IDecoder
{
OggOpusFile *m_FileH;
bool m_bOpened;
uint32 m_nRate;
uint32 m_nChannels;
public:
COpusFile(const char *path) : m_FileH(nil),
m_bOpened(false),
m_nRate(0),
m_nChannels(0)
{
int ret;
m_FileH = op_open_file(path, &ret);
if (m_FileH) {
m_nChannels = op_head(m_FileH, 0)->channel_count;
m_nRate = op_head(m_FileH, 0)->input_sample_rate;
const OpusTags *tags = op_tags(m_FileH, 0);
for (int i = 0; i < tags->comments; i++) {
if (strncmp(tags->user_comments[i], "SAMPLERATE", sizeof("SAMPLERATE")-1) == 0)
{
sscanf(tags->user_comments[i], "SAMPLERATE=%i", &m_nRate);
break;
}
}
m_bOpened = true;
}
}
~COpusFile()
{
if (m_FileH)
{
op_free(m_FileH);
m_FileH = nil;
}
}
bool IsOpened()
{
return m_bOpened;
}
uint32 GetSampleSize()
{
return sizeof(uint16);
}
uint32 GetSampleCount()
{
if ( !IsOpened() ) return 0;
return op_pcm_total(m_FileH, 0);
}
uint32 GetSampleRate()
{
return m_nRate;
}
uint32 GetChannels()
{
return m_nChannels;
}
void Seek(uint32 milliseconds)
{
if ( !IsOpened() ) return;
op_pcm_seek(m_FileH, ms2samples(milliseconds) * GetSampleSize());
}
uint32 Tell()
{
if ( !IsOpened() ) return 0;
return samples2ms(op_pcm_tell(m_FileH)/GetSampleSize());
}
uint32 Decode(void *buffer)
{
if ( !IsOpened() ) return 0;
int size = op_read(m_FileH, (opus_int16 *)buffer, GetBufferSamples(), NULL);
if (size < 0)
return 0;
return size * m_nChannels * GetSampleSize();
}
};
#endif
void CStream::Initialise()
{
#ifndef AUDIO_OPUS
mpg123_init();
#endif
}
void CStream::Terminate()
{
#ifndef AUDIO_OPUS
mpg123_exit();
#endif
}
CStream::CStream(char *filename, ALuint &source, ALuint (&buffers)[NUM_STREAMBUFFERS]) :
@ -216,10 +317,15 @@ CStream::CStream(char *filename, ALuint &source, ALuint (&buffers)[NUM_STREAMBUF
DEV("Stream %s\n", m_aFilename);
#ifndef AUDIO_OPUS
if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".mp3")], ".mp3"))
m_pSoundFile = new CMP3File(m_aFilename);
else if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".wav")], ".wav"))
m_pSoundFile = new CSndFile(m_aFilename);
#else
if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".opus")], ".opus"))
m_pSoundFile = new COpusFile(m_aFilename);
#endif
else
m_pSoundFile = nil;
ASSERT(m_pSoundFile != nil);