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-rw-r--r--src/audio/oal/stream.cpp242
-rw-r--r--src/audio/oal/stream.h2
-rw-r--r--src/audio/sampman_oal.cpp22
3 files changed, 255 insertions, 11 deletions
diff --git a/src/audio/oal/stream.cpp b/src/audio/oal/stream.cpp
index f445da66..ff3fed68 100644
--- a/src/audio/oal/stream.cpp
+++ b/src/audio/oal/stream.cpp
@@ -147,6 +147,12 @@ public:
}
};
+#ifdef _WIN32
+// fuzzy seek eliminates stutter when playing ADF but spams errors a lot (nothing breaks though)
+#define MP3_USE_FUZZY_SEEK
+#endif // _WIN32
+
+
class CMP3File : public IDecoder
{
protected:
@@ -170,8 +176,9 @@ public:
m_pMH = mpg123_new(nil, nil);
if ( m_pMH )
{
+#ifdef MP3_USE_FUZZY_SEEK
mpg123_param(m_pMH, MPG123_FLAGS, MPG123_FUZZY | MPG123_SEEKBUFFER | MPG123_GAPLESS, 0.0);
-
+#endif
long rate = 0;
int channels = 0;
int encoding = 0;
@@ -252,6 +259,233 @@ public:
return (uint32)size;
}
};
+
+#define VAG_LINE_SIZE (0x10)
+#define VAG_SAMPLES_IN_LINE (28)
+
+class CVagDecoder
+{
+ const double f[5][2] = { { 0.0, 0.0 },
+ { 60.0 / 64.0, 0.0 },
+ { 115.0 / 64.0, -52.0 / 64.0 },
+ { 98.0 / 64.0, -55.0 / 64.0 },
+ { 122.0 / 64.0, -60.0 / 64.0 } };
+
+ double s_1;
+ double s_2;
+public:
+ CVagDecoder()
+ {
+ ResetState();
+ }
+
+ void ResetState()
+ {
+ s_1 = s_2 = 0.0;
+ }
+
+ static short quantize(double sample)
+ {
+ int a = int(sample + 0.5);
+ return short(clamp(int(sample + 0.5), -32768, 32767));
+ }
+
+ void Decode(void* _inbuf, int16* _outbuf, size_t size)
+ {
+ uint8* inbuf = (uint8*)_inbuf;
+ int16* outbuf = _outbuf;
+ size &= ~(VAG_LINE_SIZE - 1);
+
+ while (size > 0) {
+ double samples[VAG_SAMPLES_IN_LINE];
+
+ int predict_nr, shift_factor, flags;
+ predict_nr = *(inbuf++);
+ shift_factor = predict_nr & 0xf;
+ predict_nr >>= 4;
+ flags = *(inbuf++);
+ if (flags == 7) // TODO: ignore?
+ break;
+ for (int i = 0; i < VAG_SAMPLES_IN_LINE; i += 2) {
+ int d = *(inbuf++);
+ int16 s = int16((d & 0xf) << 12);
+ samples[i] = (double)(s >> shift_factor);
+ s = int16((d & 0xf0) << 8);
+ samples[i + 1] = (double)(s >> shift_factor);
+ }
+
+ for (int i = 0; i < VAG_SAMPLES_IN_LINE; i++) {
+ samples[i] = samples[i] + s_1 * f[predict_nr][0] + s_2 * f[predict_nr][1];
+ s_2 = s_1;
+ s_1 = samples[i];
+ *(outbuf++) = quantize(samples[i] + 0.5);
+ }
+ size -= VAG_LINE_SIZE;
+ }
+ }
+};
+
+#define VB_BLOCK_SIZE (0x2000)
+#define NUM_VAG_LINES_IN_BLOCK (VB_BLOCK_SIZE / VAG_LINE_SIZE)
+#define NUM_VAG_SAMPLES_IN_BLOCK (NUM_VAG_LINES_IN_BLOCK * VAG_SAMPLES_IN_LINE)
+
+class CVbFile : public IDecoder
+{
+ FILE* pFile;
+ size_t m_FileSize;
+ size_t m_nNumberOfBlocks;
+ CVagDecoder* decoders;
+
+ uint32 m_nSampleRate;
+ uint8 m_nChannels;
+ bool m_bBlockRead;
+ uint16 m_LineInBlock;
+ size_t m_CurrentBlock;
+
+ uint8** ppTempBuffers;
+
+ void ReadBlock(int32 block = -1)
+ {
+ // just read next block if -1
+ if (block != -1)
+ fseek(pFile, block * m_nChannels * VB_BLOCK_SIZE, SEEK_SET);
+
+ for (int i = 0; i < m_nChannels; i++)
+ fread(ppTempBuffers[i], VB_BLOCK_SIZE, 1, pFile);
+ m_bBlockRead = true;
+ }
+
+public:
+ CVbFile(const char* path, uint32 nSampleRate = 32000, uint8 nChannels = 2) : m_nSampleRate(nSampleRate), m_nChannels(nChannels)
+ {
+ pFile = fopen(path, "rb");
+ if (pFile) {
+ fseek(pFile, 0, SEEK_END);
+ m_FileSize = ftell(pFile);
+ fseek(pFile, 0, SEEK_SET);
+ m_nNumberOfBlocks = m_FileSize / (nChannels * VB_BLOCK_SIZE);
+ decoders = new CVagDecoder[nChannels];
+ m_CurrentBlock = 0;
+ m_LineInBlock = 0;
+ m_bBlockRead = false;
+ ppTempBuffers = new uint8 * [nChannels];
+ for (uint8 i = 0; i < nChannels; i++)
+ ppTempBuffers[i] = new uint8[VB_BLOCK_SIZE];
+ }
+ }
+
+ ~CVbFile()
+ {
+ if (pFile)
+ {
+ fclose(pFile);
+ delete decoders;
+ for (int i = 0; i < m_nChannels; i++)
+ delete ppTempBuffers[i];
+ delete ppTempBuffers;
+ }
+ }
+
+ bool IsOpened()
+ {
+ return pFile != nil;
+ }
+
+ uint32 GetSampleSize()
+ {
+ return sizeof(uint16);
+ }
+
+ uint32 GetSampleCount()
+ {
+ if (!IsOpened()) return 0;
+ return m_nNumberOfBlocks * NUM_VAG_LINES_IN_BLOCK * VAG_SAMPLES_IN_LINE;
+ }
+
+ uint32 GetSampleRate()
+ {
+ return m_nSampleRate;
+ }
+
+ uint32 GetChannels()
+ {
+ return m_nChannels;
+ }
+
+ void Seek(uint32 milliseconds)
+ {
+ if (!IsOpened()) return;
+ uint32 samples = ms2samples(milliseconds);
+ int32 block = samples / NUM_VAG_SAMPLES_IN_BLOCK;
+ if (block > m_nNumberOfBlocks)
+ {
+ samples = 0;
+ block = 0;
+ }
+ if (block != m_CurrentBlock)
+ ReadBlock(block);
+
+ uint32 remainingSamples = samples - block * NUM_VAG_SAMPLES_IN_BLOCK;
+ uint32 newLine = remainingSamples / VAG_SAMPLES_IN_LINE / VAG_LINE_SIZE;
+
+ if (m_CurrentBlock != block || m_LineInBlock != newLine)
+ {
+ m_CurrentBlock = block;
+ m_LineInBlock = newLine;
+ for (int i = 0; i < GetChannels(); i++)
+ decoders[i].ResetState();
+ }
+
+ }
+
+ uint32 Tell()
+ {
+ if (!IsOpened()) return 0;
+ uint32 pos = (m_CurrentBlock * NUM_VAG_LINES_IN_BLOCK + m_LineInBlock) * VAG_SAMPLES_IN_LINE;
+ return samples2ms(pos);
+ }
+
+ uint32 Decode(void* buffer)
+ {
+ if (!IsOpened()) return 0;
+
+ if (!m_bBlockRead)
+ ReadBlock(m_CurrentBlock);
+
+ if (m_CurrentBlock == m_nNumberOfBlocks) return 0;
+ int size = 0;
+
+ int numberOfRequiredLines = GetBufferSamples() / GetChannels() / VAG_SAMPLES_IN_LINE;
+ int numberOfRemainingLines = (m_nNumberOfBlocks - m_CurrentBlock) * NUM_VAG_LINES_IN_BLOCK - m_LineInBlock;
+ int bufSizePerChannel = Min(numberOfRequiredLines, numberOfRemainingLines) * VAG_SAMPLES_IN_LINE * GetSampleSize();
+
+ if (numberOfRequiredLines > numberOfRemainingLines)
+ numberOfRemainingLines = numberOfRemainingLines;
+
+ int16* buffers[2] = { (int16*)buffer, &((int16*)buffer)[bufSizePerChannel / GetSampleSize()] };
+
+ while (size < bufSizePerChannel)
+ {
+ for (int i = 0; i < GetChannels(); i++)
+ {
+ decoders[i].Decode(ppTempBuffers[i] + m_LineInBlock * VAG_LINE_SIZE, buffers[i], VAG_LINE_SIZE);
+ buffers[i] += VAG_SAMPLES_IN_LINE;
+ }
+ size += VAG_SAMPLES_IN_LINE * GetSampleSize();
+ m_LineInBlock++;
+ if (m_LineInBlock >= NUM_VAG_LINES_IN_BLOCK)
+ {
+ m_CurrentBlock++;
+ if (m_CurrentBlock >= m_nNumberOfBlocks)
+ break;
+ m_LineInBlock = 0;
+ ReadBlock();
+ }
+ }
+
+ return bufSizePerChannel * GetChannels();
+ }
+};
#else
class COpusFile : public IDecoder
{
@@ -373,7 +607,9 @@ public:
m_pMH = mpg123_new(nil, nil);
if (m_pMH)
{
+#ifdef MP3_USE_FUZZY_SEEK
mpg123_param(m_pMH, MPG123_FLAGS, MPG123_FUZZY | MPG123_SEEKBUFFER | MPG123_GAPLESS, 0.0);
+#endif
long rate = 0;
int channels = 0;
int encoding = 0;
@@ -408,7 +644,7 @@ void CStream::Terminate()
#endif
}
-CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS]) :
+CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS], uint32 overrideSampleRate) :
m_pAlSources(sources),
m_alBuffers(buffers),
m_pBuffer(nil),
@@ -443,6 +679,8 @@ CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBU
m_pSoundFile = new CSndFile(m_aFilename);
else if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".adf")], ".adf"))
m_pSoundFile = new CADFFile(m_aFilename);
+ else if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".vb")], ".VB"))
+ m_pSoundFile = new CVbFile(m_aFilename, overrideSampleRate);
#else
if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".opus")], ".opus"))
m_pSoundFile = new COpusFile(m_aFilename);
diff --git a/src/audio/oal/stream.h b/src/audio/oal/stream.h
index 326ce6a1..bcbc5e54 100644
--- a/src/audio/oal/stream.h
+++ b/src/audio/oal/stream.h
@@ -86,7 +86,7 @@ public:
static void Initialise();
static void Terminate();
- CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS]);
+ CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS], uint32 overrideSampleRate = 32000);
~CStream();
void Delete();
diff --git a/src/audio/sampman_oal.cpp b/src/audio/sampman_oal.cpp
index 2be6cd82..84726c9e 100644
--- a/src/audio/sampman_oal.cpp
+++ b/src/audio/sampman_oal.cpp
@@ -393,6 +393,12 @@ set_new_provider(int index)
return false;
}
+static bool
+IsThisTrackAt16KHz(uint32 track)
+{
+ return track == STREAMED_SOUND_RADIO_KCHAT || track == STREAMED_SOUND_RADIO_VCPR || track == STREAMED_SOUND_AMBSIL_AMBIENT;
+}
+
cSampleManager::cSampleManager(void)
{
;
@@ -998,7 +1004,7 @@ cSampleManager::Initialise(void)
for ( int32 i = 0; i < TOTAL_STREAMED_SOUNDS; i++ )
{
- aStream[0] = new CStream(StreamedNameTable[i], ALStreamSources[0], ALStreamBuffers[0]);
+ aStream[0] = new CStream(StreamedNameTable[i], ALStreamSources[0], ALStreamBuffers[0], IsThisTrackAt16KHz(i) ? 16000 : 32000);
if ( aStream[0] && aStream[0]->IsOpened() )
{
@@ -1681,7 +1687,7 @@ cSampleManager::PreloadStreamedFile(uint32 nFile, uint8 nStream)
strcpy(filename, StreamedNameTable[nFile]);
- CStream *stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream]);
+ CStream *stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
ASSERT(stream != NULL);
aStream[nStream] = stream;
@@ -1756,7 +1762,7 @@ cSampleManager::StartStreamedFile(uint32 nFile, uint32 nPos, uint8 nStream)
nFile = 0;
strcat(filename, StreamedNameTable[nFile]);
- CStream* stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream]);
+ CStream* stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
ASSERT(stream != NULL);
aStream[nStream] = stream;
@@ -1780,12 +1786,12 @@ cSampleManager::StartStreamedFile(uint32 nFile, uint32 nPos, uint8 nStream)
}
if (mp3->pLinkPath != NULL)
- aStream[nStream] = new CStream(mp3->pLinkPath, ALStreamSources[nStream], ALStreamBuffers[nStream]);
+ aStream[nStream] = new CStream(mp3->pLinkPath, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
else {
strcpy(filename, _mp3DirectoryPath);
strcat(filename, mp3->aFilename);
- aStream[nStream] = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream]);
+ aStream[nStream] = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
}
if (aStream[nStream]->IsOpened()) {
@@ -1812,7 +1818,7 @@ cSampleManager::StartStreamedFile(uint32 nFile, uint32 nPos, uint8 nStream)
{
nFile = 0;
strcat(filename, StreamedNameTable[nFile]);
- CStream* stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream]);
+ CStream* stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
ASSERT(stream != NULL);
aStream[nStream] = stream;
@@ -1836,7 +1842,7 @@ cSampleManager::StartStreamedFile(uint32 nFile, uint32 nPos, uint8 nStream)
}
if (e->pLinkPath != NULL)
- aStream[nStream] = new CStream(e->pLinkPath, ALStreamSources[nStream], ALStreamBuffers[nStream]);
+ aStream[nStream] = new CStream(e->pLinkPath, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
else {
strcpy(filename, _mp3DirectoryPath);
strcat(filename, e->aFilename);
@@ -1869,7 +1875,7 @@ cSampleManager::StartStreamedFile(uint32 nFile, uint32 nPos, uint8 nStream)
strcpy(filename, StreamedNameTable[nFile]);
- CStream *stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream]);
+ CStream *stream = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
ASSERT(stream != NULL);
aStream[nStream] = stream;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 03:51:19 +0100