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-rw-r--r--src/libmusepack/mpc_decoder.c45
-rw-r--r--src/libmusepack/musepack/internal.h5
-rw-r--r--src/libmusepack/requant.c10
-rw-r--r--src/libmusepack/streaminfo.c6
4 files changed, 37 insertions, 29 deletions
diff --git a/src/libmusepack/mpc_decoder.c b/src/libmusepack/mpc_decoder.c
index a82036bea..d8c2e4fad 100644
--- a/src/libmusepack/mpc_decoder.c
+++ b/src/libmusepack/mpc_decoder.c
@@ -60,27 +60,24 @@ void mpc_decoder_init_huffman_sv6(mpc_decoder *d);
void mpc_decoder_init_huffman_sv7(mpc_decoder *d);
void mpc_decoder_read_bitstream_sv6(mpc_decoder *d);
void mpc_decoder_read_bitstream_sv7(mpc_decoder *d);
-mpc_uint32_t random_int(); // in synth_filter.c
void mpc_decoder_update_buffer(mpc_decoder *d, mpc_uint32_t RING);
BOOL mpc_decoder_seek_sample(mpc_decoder *d, mpc_int64_t destsample);
-void mpc_decoder_initialisiere_quantisierungstabellen(mpc_decoder *d, double scale_factor);
void mpc_decoder_requantisierung(mpc_decoder *d, const mpc_int32_t Last_Band);
-void mpc_decoder_synthese_filter_float(mpc_decoder *d, MPC_SAMPLE_FORMAT* OutData);
//------------------------------------------------------------------------------
// utility functions
//------------------------------------------------------------------------------
-mpc_int32_t f_read(mpc_decoder *d, void *ptr, size_t size)
+static mpc_int32_t f_read(mpc_decoder *d, void *ptr, size_t size)
{
return d->r->read(d->r->data, ptr, size);
};
-BOOL f_seek(mpc_decoder *d, mpc_int32_t offset)
+static BOOL f_seek(mpc_decoder *d, mpc_int32_t offset)
{
return d->r->seek(d->r->data, offset);
};
-mpc_int32_t f_read_dword(mpc_decoder *d, mpc_uint32_t * ptr, mpc_uint32_t count)
+static mpc_int32_t f_read_dword(mpc_decoder *d, mpc_uint32_t * ptr, mpc_uint32_t count)
{
count = f_read(d, ptr, count << 2) >> 2;
#ifndef MPC_LITTLE_ENDIAN
@@ -110,7 +107,7 @@ static const mpc_uint32_t mask [33] = {
/* F U N C T I O N S */
// resets bitstream decoding
-void
+static void
mpc_decoder_reset_bitstream_decode(mpc_decoder *d)
{
d->dword = 0;
@@ -120,14 +117,14 @@ mpc_decoder_reset_bitstream_decode(mpc_decoder *d)
}
// reports the number of read bits
-mpc_uint32_t
+static mpc_uint32_t
mpc_decoder_bits_read(mpc_decoder *d)
{
return 32 * d->WordsRead + d->pos;
}
// read desired number of bits out of the bitstream
-mpc_uint32_t
+static mpc_uint32_t
mpc_decoder_bitstream_read(mpc_decoder *d, const mpc_uint32_t bits)
{
mpc_uint32_t out = d->dword;
@@ -151,7 +148,7 @@ mpc_decoder_bitstream_read(mpc_decoder *d, const mpc_uint32_t bits)
}
// decode SCFI-bundle (sv4,5,6)
-void
+static void
mpc_decoder_scfi_bundle_read(
mpc_decoder *d,
HuffmanTyp* Table, mpc_int32_t* SCFI, mpc_int32_t* DSCF)
@@ -176,7 +173,7 @@ mpc_decoder_scfi_bundle_read(
*DSCF = Table->Value & 1;
}
-int
+static int
mpc_decoder_huffman_typ_cmpfn(const void* p1, const void* p2)
{
if (((HuffmanTyp*) p1)->Code < ((HuffmanTyp*) p2)->Code ) return +1;
@@ -201,7 +198,7 @@ mpc_decoder_resort_huff_tables(
// basic huffman decoding routine
// works with maximum lengths up to 14
-mpc_int32_t
+static mpc_int32_t
mpc_decoder_huffman_decode(mpc_decoder *d, const HuffmanTyp *Table)
{
// load preview and decode
@@ -225,7 +222,7 @@ mpc_decoder_huffman_decode(mpc_decoder *d, const HuffmanTyp *Table)
// faster huffman through previewing less bits
// works with maximum lengths up to 10
-mpc_int32_t
+static mpc_int32_t
mpc_decoder_huffman_decode_fast(mpc_decoder *d, const HuffmanTyp* Table)
{
// load preview and decode
@@ -249,7 +246,7 @@ mpc_decoder_huffman_decode_fast(mpc_decoder *d, const HuffmanTyp* Table)
// even faster huffman through previewing even less bits
// works with maximum lengths up to 5
-mpc_int32_t
+static mpc_int32_t
mpc_decoder_huffman_decode_faster(mpc_decoder *d, const HuffmanTyp* Table)
{
// load preview and decode
@@ -271,27 +268,27 @@ mpc_decoder_huffman_decode_faster(mpc_decoder *d, const HuffmanTyp* Table)
return Table->Value;
}
-void
+static void
mpc_decoder_reset_v(mpc_decoder *d)
{
memset(d->V_L, 0, sizeof d->V_L);
memset(d->V_R, 0, sizeof d->V_R);
}
-void
+static void
mpc_decoder_reset_synthesis(mpc_decoder *d)
{
mpc_decoder_reset_v(d);
}
-void
+static void
mpc_decoder_reset_y(mpc_decoder *d)
{
memset(d->Y_L, 0, sizeof d->Y_L);
memset(d->Y_R, 0, sizeof d->Y_R);
}
-void
+static void
mpc_decoder_reset_globals(mpc_decoder *d)
{
mpc_decoder_reset_bitstream_decode(d);
@@ -316,7 +313,7 @@ mpc_decoder_reset_globals(mpc_decoder *d)
memset(d->MS_Flag , 0, sizeof d->MS_Flag );
}
-mpc_uint32_t
+static mpc_uint32_t
mpc_decoder_decode_internal(mpc_decoder *d, MPC_SAMPLE_FORMAT *buffer)
{
mpc_uint32_t output_frame_length = MPC_FRAME_LENGTH;
@@ -994,7 +991,7 @@ mpc_decoder_read_bitstream_sv7(mpc_decoder *d)
break;
case -1:
for (k=0; k<36; k++ ) {
- tmp = random_int();
+ tmp = random_int(d);
*L++ = ((tmp >> 24) & 0xFF) + ((tmp >> 16) & 0xFF) + ((tmp >> 8) & 0xFF) + ((tmp >> 0) & 0xFF) - 510;
}
break;
@@ -1054,7 +1051,7 @@ mpc_decoder_read_bitstream_sv7(mpc_decoder *d)
break;
case -1:
for (k=0; k<36; k++ ) {
- tmp = random_int();
+ tmp = random_int(d);
*R++ = ((tmp >> 24) & 0xFF) + ((tmp >> 16) & 0xFF) + ((tmp >> 8) & 0xFF) + ((tmp >> 0) & 0xFF) - 510;
}
break;
@@ -1177,7 +1174,7 @@ void mpc_decoder_setup(mpc_decoder *d, mpc_reader *r)
mpc_decoder_init_huffman_sv7(d);
}
-void mpc_decoder_set_streaminfo(mpc_decoder *d, mpc_streaminfo *si)
+static void mpc_decoder_set_streaminfo(mpc_decoder *d, mpc_streaminfo *si)
{
mpc_decoder_reset_synthesis(d);
mpc_decoder_reset_globals(d);
@@ -1219,6 +1216,7 @@ BOOL mpc_decoder_initialize(mpc_decoder *d, mpc_streaminfo *si)
// will seek from the beginning of the file to the desired
// position in ms (given by seek_needed)
//---------------------------------------------------------------
+#if 0
static void
helper1(mpc_decoder *d, mpc_uint32_t bitpos)
{
@@ -1227,6 +1225,7 @@ helper1(mpc_decoder *d, mpc_uint32_t bitpos)
d->dword = d->Speicher[d->Zaehler = 0];
d->pos = bitpos & 31;
}
+#endif
static void
helper2(mpc_decoder *d, mpc_uint32_t bitpos)
@@ -1237,6 +1236,7 @@ helper2(mpc_decoder *d, mpc_uint32_t bitpos)
d->pos = bitpos & 31;
}
+#if 0
static void
helper3(mpc_decoder *d, mpc_uint32_t bitpos, mpc_uint32_t* buffoffs)
{
@@ -1249,6 +1249,7 @@ helper3(mpc_decoder *d, mpc_uint32_t bitpos, mpc_uint32_t* buffoffs)
}
d->dword = d->Speicher[d->Zaehler = bitpos - *buffoffs ];
}
+#endif
static mpc_uint32_t get_initial_fpos(mpc_decoder *d, mpc_uint32_t StreamVersion)
{
diff --git a/src/libmusepack/musepack/internal.h b/src/libmusepack/musepack/internal.h
index fce533434..42a0e7156 100644
--- a/src/libmusepack/musepack/internal.h
+++ b/src/libmusepack/musepack/internal.h
@@ -23,5 +23,10 @@ mpc_uint32_t swap32(mpc_uint32_t val) {
/// \return -1 on errors of any kind
mpc_int32_t JumpID3v2(mpc_reader* fp);
+/// helper functions used by multiple files
+mpc_uint32_t random_int(mpc_decoder *d); // in synth_filter.c
+void mpc_decoder_initialisiere_quantisierungstabellen(mpc_decoder *d, double scale_factor);
+void mpc_decoder_synthese_filter_float(mpc_decoder *d, MPC_SAMPLE_FORMAT* OutData);
+
#endif // _musepack_internal_h
diff --git a/src/libmusepack/requant.c b/src/libmusepack/requant.c
index 076e5809c..d318d0bd0 100644
--- a/src/libmusepack/requant.c
+++ b/src/libmusepack/requant.c
@@ -37,6 +37,7 @@
/// \todo document me
#include "musepack/musepack.h"
+#include "musepack/internal.h"
/* C O N S T A N T S */
// bits per sample for chosen quantizer
@@ -87,14 +88,15 @@ static mpc_uint32_t find_shift(double fval)
void
mpc_decoder_scale_output(mpc_decoder *d, double factor)
{
+ mpc_int32_t n;
+ double f1;
+ double f2;
#ifndef MPC_FIXED_POINT
factor *= 1.0 / (double)(1<<(MPC_FIXED_POINT_SHIFT-1));
#else
factor *= 1.0 / (double)(1<<(16 - MPC_FIXED_POINT_SHIFT));
#endif
- mpc_int32_t n;
- double f1 = factor;
- double f2 = factor;
+ f1 = f2 = factor;
// handles +1.58...-98.41 dB, where's scf[n] / scf[n-1] = 1.20050805774840750476
@@ -111,7 +113,7 @@ mpc_decoder_scale_output(mpc_decoder *d, double factor)
}
}
-void
+static void
mpc_decoder_quantisierungsmodes(mpc_decoder *d) // conversion: index -> quantizer (bitstream reading)
{ // conversion: quantizer -> index (bitstream writing)
mpc_int32_t Band = 0;
diff --git a/src/libmusepack/streaminfo.c b/src/libmusepack/streaminfo.c
index c3c6b3838..2c6ff1c6f 100644
--- a/src/libmusepack/streaminfo.c
+++ b/src/libmusepack/streaminfo.c
@@ -60,14 +60,14 @@ mpc_streaminfo_init(mpc_streaminfo * si)
// read information from SV8 header
// not yet implemented
-mpc_int32_t
+static mpc_int32_t
streaminfo_read_header_sv8(mpc_streaminfo * si, mpc_reader * fp)
{
return 0;
}
/// Reads streaminfo from SV7 header.
-mpc_int32_t
+static mpc_int32_t
streaminfo_read_header_sv7(mpc_streaminfo * si, mpc_uint32_t HeaderData[8])
{
const mpc_int32_t samplefreqs[4] = { 44100, 48000, 37800, 32000 };
@@ -140,7 +140,7 @@ streaminfo_read_header_sv7(mpc_streaminfo * si, mpc_uint32_t HeaderData[8])
}
// read information from SV4-SV6 header
-mpc_int32_t
+static mpc_int32_t
streaminfo_read_header_sv6(mpc_streaminfo * si, mpc_uint32_t HeaderData[8])
{
//mpc_uint32_t HeaderData [8];
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 20:48:33 +0000