4 files changed, 235 insertions, 5 deletions

diff --git a/premake5.lua b/premake5.lua
index c8494884..c6551a21 100644
--- a/premake5.lua
+++ b/premake5.lua
@@ -17,6 +17,11 @@ newoption {
 	description = "Build and use librw from this solution"
 }
 
+newoption {
+	trigger     = "with-opus",
+	description = "Build with opus"
+}
+
 if(_OPTIONS["with-librw"]) then
 	Librw = "librw"
 else
@@ -185,8 +190,25 @@ project "re3"
 
 	includedirs { "milessdk/include" }
 	includedirs { "eax" }
+	
+	includedirs { "openal-soft/include" }
+	includedirs { "mpg123/include" }
+	includedirs { "libsndfile/include" }
+	includedirs { "ogg/include" }
+	includedirs { "opus/include" }
+	includedirs { "opusfile/include" }
 
 	libdirs { "milessdk/lib" }
+	libdirs { "openal-soft/libs/Win32" }
+	libdirs { "mpg123/lib" }
+	libdirs { "libsndfile/lib" }
+	if _OPTIONS["with-opus"] then
+		filter "platforms:win*"
+			libdirs { "ogg/win32/VS2015/Win32/%{cfg.buildcfg}" }
+			libdirs { "opus/win32/VS2015/Win32/%{cfg.buildcfg}" }
+			libdirs { "opusfile/win32/VS2015/Win32/Release-NoHTTP" }
+		filter {}
+	end
 	
 	if(os.getenv("GTA_III_RE_DIR")) then
 		setpaths("$(GTA_III_RE_DIR)/", "%(cfg.buildtarget.name)", "")
@@ -202,6 +224,13 @@ project "re3"
 	filter "platforms:linux*"
 		defines { "OPENAL" }
 		links { "openal", "mpg123", "sndfile", "pthread" }
+	
+	if _OPTIONS["with-opus"] then
+		filter {}
+		links { "libogg" }
+		links { "opus" }
+		links { "opusfile" }
+	end
 
 	filter "platforms:*RW33*"
 		staticruntime "on"
diff --git a/src/audio/oal/stream.cpp b/src/audio/oal/stream.cpp
index 5a9c7d7d..21e4d8c6 100644
--- a/src/audio/oal/stream.cpp
+++ b/src/audio/oal/stream.cpp
@@ -4,8 +4,9 @@
 #include "common.h"
 #include "sampman.h"
 
-#include <sndfile.h>
-#include <mpg123.h>
+#ifdef AUDIO_OPUS
+#include <opusfile.h>
+#else
 #ifdef _WIN32
 typedef long ssize_t;
 #pragma comment( lib, "libsndfile-1.lib" )
@@ -13,7 +14,11 @@ typedef long ssize_t;
 #else
 #include "crossplatform.h"
 #endif
+#include <sndfile.h>
+#include <mpg123.h>
+#endif
 
+#ifndef AUDIO_OPUS
 class CSndFile : public IDecoder
 {
 	SNDFILE *m_pfSound;
@@ -170,15 +175,111 @@ public:
 		return size;
 	}
 };
+#else
+class COpusFile : public IDecoder
+{
+	OggOpusFile *m_FileH;
+	bool m_bOpened;
+	uint32 m_nRate;
+	uint32 m_nChannels;
+public:
+	_declspec(noinline) 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;
+			auto 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]) :
@@ -213,10 +314,15 @@ 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);
diff --git a/src/audio/sampman.h b/src/audio/sampman.h
index d3c82943..3eeff476 100644
--- a/src/audio/sampman.h
+++ b/src/audio/sampman.h
@@ -144,6 +144,42 @@ public:
 extern cSampleManager SampleManager;
 extern uint32 BankStartOffset[MAX_SAMPLEBANKS];
 
+#ifdef AUDIO_OPUS
+static char StreamedNameTable[][25] = {
+    "AUDIO\\HEAD.OPUS",    "AUDIO\\CLASS.OPUS",   "AUDIO\\KJAH.OPUS",    "AUDIO\\RISE.OPUS",    "AUDIO\\LIPS.OPUS",    "AUDIO\\GAME.OPUS",
+    "AUDIO\\MSX.OPUS",     "AUDIO\\FLASH.OPUS",   "AUDIO\\CHAT.OPUS",    "AUDIO\\HEAD.OPUS",    "AUDIO\\POLICE.OPUS",  "AUDIO\\CITY.OPUS",
+    "AUDIO\\WATER.OPUS",   "AUDIO\\COMOPEN.OPUS", "AUDIO\\SUBOPEN.OPUS", "AUDIO\\JB.OPUS",      "AUDIO\\BET.OPUS",     "AUDIO\\L1_LG.OPUS",
+    "AUDIO\\L2_DSB.OPUS",  "AUDIO\\L3_DM.OPUS",   "AUDIO\\L4_PAP.OPUS",  "AUDIO\\L5_TFB.OPUS",  "AUDIO\\J0_DM2.OPUS",  "AUDIO\\J1_LFL.OPUS",
+    "AUDIO\\J2_KCL.OPUS",  "AUDIO\\J3_VH.OPUS",   "AUDIO\\J4_ETH.OPUS",  "AUDIO\\J5_DST.OPUS",  "AUDIO\\J6_TBJ.OPUS",  "AUDIO\\T1_TOL.OPUS",
+    "AUDIO\\T2_TPU.OPUS",  "AUDIO\\T3_MAS.OPUS",  "AUDIO\\T4_TAT.OPUS",  "AUDIO\\T5_BF.OPUS",   "AUDIO\\S0_MAS.OPUS",  "AUDIO\\S1_PF.OPUS",
+    "AUDIO\\S2_CTG.OPUS",  "AUDIO\\S3_RTC.OPUS",  "AUDIO\\S5_LRQ.OPUS",  "AUDIO\\S4_BDBA.OPUS", "AUDIO\\S4_BDBB.OPUS", "AUDIO\\S2_CTG2.OPUS",
+    "AUDIO\\S4_BDBD.OPUS", "AUDIO\\S5_LRQB.OPUS", "AUDIO\\S5_LRQC.OPUS", "AUDIO\\A1_SSO.OPUS",  "AUDIO\\A2_PP.OPUS",   "AUDIO\\A3_SS.OPUS",
+    "AUDIO\\A4_PDR.OPUS",  "AUDIO\\A5_K2FT.OPUS", "AUDIO\\K1_KBO.OPUS",  "AUDIO\\K2_GIS.OPUS",  "AUDIO\\K3_DS.OPUS",   "AUDIO\\K4_SHI.OPUS",
+    "AUDIO\\K5_SD.OPUS",   "AUDIO\\R0_PDR2.OPUS", "AUDIO\\R1_SW.OPUS",   "AUDIO\\R2_AP.OPUS",   "AUDIO\\R3_ED.OPUS",   "AUDIO\\R4_GF.OPUS",
+    "AUDIO\\R5_PB.OPUS",   "AUDIO\\R6_MM.OPUS",   "AUDIO\\D1_STOG.OPUS", "AUDIO\\D2_KK.OPUS",   "AUDIO\\D3_ADO.OPUS",  "AUDIO\\D5_ES.OPUS",
+    "AUDIO\\D7_MLD.OPUS",  "AUDIO\\D4_GTA.OPUS",  "AUDIO\\D4_GTA2.OPUS", "AUDIO\\D6_STS.OPUS",  "AUDIO\\A6_BAIT.OPUS", "AUDIO\\A7_ETG.OPUS",
+    "AUDIO\\A8_PS.OPUS",   "AUDIO\\A9_ASD.OPUS",  "AUDIO\\K4_SHI2.OPUS", "AUDIO\\C1_TEX.OPUS",  "AUDIO\\EL_PH1.OPUS",  "AUDIO\\EL_PH2.OPUS",
+    "AUDIO\\EL_PH3.OPUS",  "AUDIO\\EL_PH4.OPUS",  "AUDIO\\YD_PH1.OPUS",  "AUDIO\\YD_PH2.OPUS",  "AUDIO\\YD_PH3.OPUS",  "AUDIO\\YD_PH4.OPUS",
+    "AUDIO\\HD_PH1.OPUS",  "AUDIO\\HD_PH2.OPUS",  "AUDIO\\HD_PH3.OPUS",  "AUDIO\\HD_PH4.OPUS",  "AUDIO\\HD_PH5.OPUS",  "AUDIO\\MT_PH1.OPUS",
+    "AUDIO\\MT_PH2.OPUS",  "AUDIO\\MT_PH3.OPUS",  "AUDIO\\MT_PH4.OPUS",  "AUDIO\\MISCOM.OPUS",  "AUDIO\\END.OPUS",     "AUDIO\\lib_a1.OPUS",
+    "AUDIO\\lib_a2.OPUS",  "AUDIO\\lib_a.OPUS",   "AUDIO\\lib_b.OPUS",   "AUDIO\\lib_c.OPUS",   "AUDIO\\lib_d.OPUS",   "AUDIO\\l2_a.OPUS",
+    "AUDIO\\j4t_1.OPUS",   "AUDIO\\j4t_2.OPUS",   "AUDIO\\j4t_3.OPUS",   "AUDIO\\j4t_4.OPUS",   "AUDIO\\j4_a.OPUS",    "AUDIO\\j4_b.OPUS",
+    "AUDIO\\j4_c.OPUS",    "AUDIO\\j4_d.OPUS",    "AUDIO\\j4_e.OPUS",    "AUDIO\\j4_f.OPUS",    "AUDIO\\j6_1.OPUS",    "AUDIO\\j6_a.OPUS",
+    "AUDIO\\j6_b.OPUS",    "AUDIO\\j6_c.OPUS",    "AUDIO\\j6_d.OPUS",    "AUDIO\\t4_a.OPUS",    "AUDIO\\s1_a.OPUS",    "AUDIO\\s1_a1.OPUS",
+    "AUDIO\\s1_b.OPUS",    "AUDIO\\s1_c.OPUS",    "AUDIO\\s1_c1.OPUS",   "AUDIO\\s1_d.OPUS",    "AUDIO\\s1_e.OPUS",    "AUDIO\\s1_f.OPUS",
+    "AUDIO\\s1_g.OPUS",    "AUDIO\\s1_h.OPUS",    "AUDIO\\s1_i.OPUS",    "AUDIO\\s1_j.OPUS",    "AUDIO\\s1_k.OPUS",    "AUDIO\\s1_l.OPUS",
+    "AUDIO\\s3_a.OPUS",    "AUDIO\\s3_b.OPUS",    "AUDIO\\el3_a.OPUS",   "AUDIO\\mf1_a.OPUS",   "AUDIO\\mf2_a.OPUS",   "AUDIO\\mf3_a.OPUS",
+    "AUDIO\\mf3_b.OPUS",   "AUDIO\\mf3_b1.OPUS",  "AUDIO\\mf3_c.OPUS",   "AUDIO\\mf4_a.OPUS",   "AUDIO\\mf4_b.OPUS",   "AUDIO\\mf4_c.OPUS",
+    "AUDIO\\a1_a.OPUS",    "AUDIO\\a3_a.OPUS",    "AUDIO\\a5_a.OPUS",    "AUDIO\\a4_a.OPUS",    "AUDIO\\a4_b.OPUS",    "AUDIO\\a4_c.OPUS",
+    "AUDIO\\a4_d.OPUS",    "AUDIO\\k1_a.OPUS",    "AUDIO\\k3_a.OPUS",    "AUDIO\\r1_a.OPUS",    "AUDIO\\r2_a.OPUS",    "AUDIO\\r2_b.OPUS",
+    "AUDIO\\r2_c.OPUS",    "AUDIO\\r2_d.OPUS",    "AUDIO\\r2_e.OPUS",    "AUDIO\\r2_f.OPUS",    "AUDIO\\r2_g.OPUS",    "AUDIO\\r2_h.OPUS",
+    "AUDIO\\r5_a.OPUS",    "AUDIO\\r6_a.OPUS",    "AUDIO\\r6_a1.OPUS",   "AUDIO\\r6_b.OPUS",    "AUDIO\\lo2_a.OPUS",   "AUDIO\\lo6_a.OPUS",
+    "AUDIO\\yd2_a.OPUS",   "AUDIO\\yd2_b.OPUS",   "AUDIO\\yd2_c.OPUS",   "AUDIO\\yd2_c1.OPUS",  "AUDIO\\yd2_d.OPUS",   "AUDIO\\yd2_e.OPUS",
+    "AUDIO\\yd2_f.OPUS",   "AUDIO\\yd2_g.OPUS",   "AUDIO\\yd2_h.OPUS",   "AUDIO\\yd2_ass.OPUS", "AUDIO\\yd2_ok.OPUS",  "AUDIO\\h5_a.OPUS",
+    "AUDIO\\h5_b.OPUS",    "AUDIO\\h5_c.OPUS",    "AUDIO\\ammu_a.OPUS",  "AUDIO\\ammu_b.OPUS",  "AUDIO\\ammu_c.OPUS",  "AUDIO\\door_1.OPUS",
+    "AUDIO\\door_2.OPUS",  "AUDIO\\door_3.OPUS",  "AUDIO\\door_4.OPUS",  "AUDIO\\door_5.OPUS",  "AUDIO\\door_6.OPUS",  "AUDIO\\t3_a.OPUS",
+    "AUDIO\\t3_b.OPUS",    "AUDIO\\t3_c.OPUS",    "AUDIO\\k1_b.OPUS",    "AUDIO\\cat1.OPUS"};
+#else
 static char StreamedNameTable[][25]=
 {
 	"AUDIO\\HEAD.WAV",
@@ -343,3 +379,4 @@ static char StreamedNameTable[][25]=
 	"AUDIO\\k1_b.WAV",
 	"AUDIO\\cat1.WAV"
 };
+#endif
\ No newline at end of file
diff --git a/src/audio/sampman_oal.cpp b/src/audio/sampman_oal.cpp
index 30efd7f5..d8d7ac24 100644
--- a/src/audio/sampman_oal.cpp
+++ b/src/audio/sampman_oal.cpp
@@ -27,6 +27,9 @@
 #include "MusicManager.h"
 #include "Frontend.h"
 #include "Timer.h"
+#ifdef AUDIO_OPUS
+#include <opusfile.h>
+#endif
 
 //TODO: fix eax3 reverb
 //TODO: max channals
@@ -42,6 +45,10 @@ bool _bSampmanInitialised = false;
 
 uint32 BankStartOffset[MAX_SAMPLEBANKS];
 
+#ifdef AUDIO_OPUS
+OggOpusFile *opusSFX;
+#endif
+
 int           prevprovider=-1;
 int           curprovider=-1;
 int           usingEAX=0;
@@ -444,6 +451,8 @@ int8 cSampleManager::GetCurrent3DProviderIndex(void)
 int8 cSampleManager::SetCurrent3DProvider(uint8 nProvider)
 {
 	ASSERT( nProvider < m_nNumberOfProviders );
+	if (nProvider >= m_nNumberOfProviders)
+		nProvider = 0;
 	int savedprovider = curprovider;
 	
 	if ( nProvider < m_nNumberOfProviders )
@@ -743,12 +752,37 @@ cSampleManager::LoadSampleBank(uint8 nBank)
 		return false;
 	}
 	
+#ifdef AUDIO_OPUS
+	int ret;
+	//OggOpusFile *file = op_open_file("AUDIO/SFX0.RAW", &ret);
+	int samplesRead = 0;
+	int samplesSize = nSampleBankSize[nBank] / 2;
+	op_pcm_seek(opusSFX, 0);
+	while (samplesSize > 0) {
+		int size = op_read(opusSFX, (opus_int16 *)(nSampleBankMemoryStartAddress[nBank] + samplesRead), samplesSize, NULL);
+		if (size <= 0) {
+			// huh?
+			//assert(0);
+			break;
+		}
+		samplesRead += size*2;
+		samplesSize -= size;
+	}
+	//op_free(file);
+
+	//if (samplesRead != nSampleBankSize[nBank])
+	//	return false;
+
+	//FILE *fsd = fopen("sfx.temp", "wb");
+	//fwrite((void *)nSampleBankMemoryStartAddress[nBank], 1, nSampleBankSize[nBank], fsd);
+	//fclose(fsd);
+#else
 	if ( fseek(fpSampleDataHandle, nSampleBankDiscStartOffset[nBank], SEEK_SET) != 0 )
 		return false;
 	
 	if ( fread((void *)nSampleBankMemoryStartAddress[nBank], 1, nSampleBankSize[nBank], fpSampleDataHandle) != nSampleBankSize[nBank] )
 		return false;
-	
+#endif
 	bSampleBankLoaded[nBank] = true;
 	
 	return true;
@@ -836,13 +870,28 @@ cSampleManager::LoadPedComment(uint32 nComment)
 			}
 		}
 	}
-	
+
+#ifdef AUDIO_OPUS
+	int samplesRead = 0;
+	int samplesSize = m_aSamples[nComment].nSize / 2;
+	op_pcm_seek(opusSFX, m_aSamples[nComment].nOffset / 2);
+	while (samplesSize > 0) {
+		int size =
+		    op_read(opusSFX, (opus_int16 *)(nSampleBankMemoryStartAddress[SAMPLEBANK_PED] + PED_BLOCKSIZE * nCurrentPedSlot + samplesRead), samplesSize, NULL);
+		if (size <= 0) {
+			return false;
+		}
+		samplesRead += size * 2;
+		samplesSize -= size;
+	}
+#else
 	if ( fseek(fpSampleDataHandle, m_aSamples[nComment].nOffset, SEEK_SET) != 0 )
 		return false;
 	
 	if ( fread((void *)(nSampleBankMemoryStartAddress[SAMPLEBANK_PED] + PED_BLOCKSIZE*nCurrentPedSlot), 1, m_aSamples[nComment].nSize, fpSampleDataHandle) != m_aSamples[nComment].nSize )
 		return false;
-	
+
+#endif
 	nPedSlotSfx[nCurrentPedSlot] = nComment;
 	
 	alBufferData(pedBuffers[nCurrentPedSlot],
@@ -1406,6 +1455,15 @@ cSampleManager::InitialiseSampleBanks(void)
 	nSampleBankSize[SAMPLEBANK_MAIN] = nSampleBankDiscStartOffset[SAMPLEBANK_PED] - nSampleBankDiscStartOffset[SAMPLEBANK_MAIN];
 	nSampleBankSize[SAMPLEBANK_PED]  = _nSampleDataEndOffset                      - nSampleBankDiscStartOffset[SAMPLEBANK_PED];
 	
+	//int error = 0;
+	//auto encoder = opus_encoder_create(48000, 1, OPUS_APPLICATION_AUDIO, &error);
+	//error = opus_encoder_ctl(encoder, OPUS_SET_BITRATE(75.5));
+
+	//nbBytes = opus_encode(encoder, in, FRAME_SIZE, cbits, MAX_PACKET_SIZE);
+
+	int e;
+	opusSFX = op_open_file("AUDIO/SFX.opus", &e);
+
 	return true;
 }