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Siren14 cleanup

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This commit is contained in:
bnnm 2020-02-08 12:54:13 +01:00
parent bbeb4e4ba3
commit b5767fe2d8
5 changed files with 142 additions and 107 deletions
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8
src/coding/coding.h
View File

@ -259,10 +259,10 @@ long mpeg_bytes_to_samples(long bytes, const mpeg_codec_data *data);
#ifdef VGM_USE_G7221
/* g7221_decoder */
g7221_codec_data *init_g7221(int channel_count, int frame_size);
void decode_g7221(VGMSTREAM *vgmstream, sample * outbuf, int channelspacing, int32_t samples_to_do, int channel);
void reset_g7221(VGMSTREAM *vgmstream);
void free_g7221(VGMSTREAM *vgmstream);
g7221_codec_data* init_g7221(int channel_count, int frame_size);
void decode_g7221(VGMSTREAM* vgmstream, sample_t* outbuf, int channelspacing, int32_t samples_to_do, int channel);
void reset_g7221(g7221_codec_data* data);
void free_g7221(g7221_codec_data* data);
#endif
#ifdef VGM_USE_G719

62
src/coding/g7221_decoder.c
View File

@ -2,54 +2,59 @@
#include "g7221_decoder_lib.h"
#ifdef VGM_USE_G7221
#define G7221_MAX_FRAME_SIZE 0x78 /* max frame 0x78 uint8s = 960/8 */
#define G7221_MAX_FRAME_SIZE 0x78 /* 960/8 */
#define G7221_MAX_FRAME_SAMPLES 640 /* 32000/50 */
struct g7221_codec_data {
sample_t buffer[640];
g7221_handle *handle;
int channels;
int frame_size;
struct g7221_channel_data {
sample_t buffer[G7221_MAX_FRAME_SAMPLES];
g7221_handle* handle;
} *ch;
};
g7221_codec_data* init_g7221(int channel_count, int frame_size) {
g7221_codec_data* init_g7221(int channels, int frame_size) {
int i;
g7221_codec_data* data = NULL;
if (frame_size > G7221_MAX_FRAME_SIZE)
goto fail;
data = calloc(channel_count, sizeof(g7221_codec_data)); /* one decoder per channel */
data = calloc(1, sizeof(g7221_codec_data));
if (!data) goto fail;
for (i = 0; i < channel_count; i++) {
data[i].handle = g7221_init(frame_size, 14000); /* Siren 14 == 14khz bandwidth */
if (!data[i].handle) goto fail;
data->channels = channels;
data->frame_size = frame_size;
data->ch = calloc(channels, sizeof(struct g7221_channel_data));
if (!data->ch) goto fail;
for (i = 0; i < data->channels; i++) {
data->ch[i].handle = g7221_init(frame_size);
if (!data->ch[i].handle) goto fail;
}
return data;
fail:
if (data) {
for (i = 0; i < channel_count; i++) {
g7221_free(data[i].handle);
}
}
free(data);
free_g7221(data);
return NULL;
}
void decode_g7221(VGMSTREAM * vgmstream, sample * outbuf, int channelspacing, int32_t samples_to_do, int channel) {
VGMSTREAMCHANNEL *ch = &vgmstream->ch[channel];
g7221_codec_data *data = vgmstream->codec_data;
g7221_codec_data *ch_data = &data[channel];
void decode_g7221(VGMSTREAM* vgmstream, sample_t* outbuf, int channelspacing, int32_t samples_to_do, int channel) {
VGMSTREAMCHANNEL* ch = &vgmstream->ch[channel];
g7221_codec_data* data = vgmstream->codec_data;
struct g7221_channel_data* ch_data = &data->ch[channel];
int i;
if (0 == vgmstream->samples_into_block) {
uint8_t buf[G7221_MAX_FRAME_SIZE];
size_t bytes;
size_t read = vgmstream->interleave_block_size;
size_t read = data->frame_size;
bytes = vgmstream->ch[channel].streamfile->read(ch->streamfile, buf, ch->offset, read);
bytes = read_streamfile(buf, ch->offset, read, ch->streamfile);
if (bytes != read) {
//g7221_decode_empty(ch_data->handle, ch_data->buffer);
memset(ch_data->buffer, 0, sizeof(ch_data->buffer));
@ -66,24 +71,23 @@ void decode_g7221(VGMSTREAM * vgmstream, sample * outbuf, int channelspacing, in
}
void reset_g7221(VGMSTREAM *vgmstream) {
g7221_codec_data *data = vgmstream->codec_data;
void reset_g7221(g7221_codec_data* data) {
int i;
if (!data) return;
for (i = 0; i < vgmstream->channels; i++) {
g7221_reset(data[i].handle);
for (i = 0; i < data->channels; i++) {
g7221_reset(data->ch[i].handle);
}
}
void free_g7221(VGMSTREAM *vgmstream) {
g7221_codec_data *data = (g7221_codec_data *) vgmstream->codec_data;
void free_g7221(g7221_codec_data* data) {
int i;
if (!data) return;
for (i = 0; i < vgmstream->channels; i++) {
g7221_free(data[i].handle);
for (i = 0; i < data->channels; i++) {
g7221_free(data->ch[i].handle);
}
free(data->ch);
free(data);
}

155
src/coding/g7221_decoder_lib.c
View File

@ -35,7 +35,7 @@
* - very minor change in bit unpacking (minor output diffs)
* - modified DCT-IV optimizations, scaling and window functions (minor output diffs)
* - internally PCM16 bufs, but converts to float (sample/32768.0) afterwards if the platform needs it
* - less error control
* - less error control (on error decoder is supposed to repeat last coefs)
* - can't decode Siren7, and given output diffs it's not actually ITU-compliant
* - minor optimizations here and there but otherwise very similar
* This decoder generally uses Polycom's terminology, and while some parts like the bitreader could be
@ -93,13 +93,14 @@ static int imlt_window(int16_t* new_samples, int16_t* old_samples, int16_t* out_
old_ptr = old_samples + 0;
new_ptr = new_samples + 320;
for (i = 320; i > 0; --i) {
*old_ptr++ = *new_ptr++;
for (i = 0; i < 320; i++) {
old_ptr[i] = new_ptr[i];
}
return 0;
}
/* "dct4_x640_int" */
static int imlt_dct4(int16_t* mlt_coefs, int16_t* new_samples, int mag_shift) {
int i, j, k, n;
const uint8_t *set1_ptr;
@ -186,55 +187,55 @@ static int imlt_dct4(int16_t* mlt_coefs, int16_t* new_samples, int mag_shift) {
{
int cos_val, sin_val;
const uint16_t *cos_ptr, *sin_ptr, *cos_ptr_lo, *sin_ptr_lo;
int16_t C_in_val_lo, C_in_val_hi, C_in_val_mlo, C_in_val_mhi;
int16_t *C_in_ptr, *C_in_ptr_lo, *C_in_ptr_hi, *C_in_ptr_mlo, *C_in_ptr_mhi;
int16_t mlt_val_lo, mlt_val_hi, mlt_val_mlo, mlt_val_mhi;
int16_t *mlt_ptr, *mlt_ptr_lo, *mlt_ptr_hi, *mlt_ptr_mlo, *mlt_ptr_mhi;
cos_ptr = &imlt_cos_tables[320+160]; /* cos_table_16 > 8 > 4 > 2 */
sin_ptr = &imlt_sin_tables[320+160]; /* sin_table_16 > 8 > 4 > 2 */
for (n = 160; n >= 20; n /= 2) {
C_in_ptr = mlt_coefs + 0;
while (C_in_ptr < mlt_coefs + 640) {
mlt_ptr = mlt_coefs + 0;
while (mlt_ptr < mlt_coefs + 640) {
for (j = *set1_ptr; j > 0; --j) {
C_in_ptr_lo = C_in_ptr + 0;
C_in_ptr_hi = C_in_ptr + n;
C_in_ptr_mlo = C_in_ptr + (n / 2);
C_in_ptr_mhi = C_in_ptr + (n / 2);
mlt_ptr_lo = mlt_ptr + 0;
mlt_ptr_hi = mlt_ptr + n;
mlt_ptr_mlo = mlt_ptr + (n / 2);
mlt_ptr_mhi = mlt_ptr + (n / 2);
for (k = n / 4; k > 0; --k) {
C_in_val_lo = *C_in_ptr_lo;
C_in_val_hi = *--C_in_ptr_hi;
C_in_val_mhi = *--C_in_ptr_mhi;
C_in_val_mlo = *C_in_ptr_mlo;
*C_in_ptr_lo++ = C_in_val_lo + C_in_val_hi;
*C_in_ptr_mlo++ = C_in_val_lo - C_in_val_hi;
*C_in_ptr_mhi = C_in_val_mlo + C_in_val_mhi;
*C_in_ptr_hi = C_in_val_mhi - C_in_val_mlo;
mlt_val_lo = *mlt_ptr_lo;
mlt_val_hi = *--mlt_ptr_hi;
mlt_val_mhi = *--mlt_ptr_mhi;
mlt_val_mlo = *mlt_ptr_mlo;
*mlt_ptr_lo++ = mlt_val_lo + mlt_val_hi;
*mlt_ptr_mlo++ = mlt_val_lo - mlt_val_hi;
*mlt_ptr_mhi = mlt_val_mlo + mlt_val_mhi;
*mlt_ptr_hi = mlt_val_mhi - mlt_val_mlo;
}
C_in_ptr += n;
mlt_ptr += n;
}
set1_ptr++;
for (j = *set1_ptr; j > 0; --j) {
C_in_ptr_lo = C_in_ptr + 0;
C_in_ptr_hi = C_in_ptr + n;
mlt_ptr_lo = mlt_ptr + 0;
mlt_ptr_hi = mlt_ptr + n;
cos_ptr_lo = cos_ptr + 0;
sin_ptr_lo = sin_ptr + 0;
for (k = n / 4; k > 0; --k) {
cos_val = *cos_ptr_lo++;
sin_val = *sin_ptr_lo++;
C_in_val_lo = *C_in_ptr_lo;
C_in_val_hi = *--C_in_ptr_hi;
*C_in_ptr_lo++ = (cos_val * C_in_val_lo + sin_val * C_in_val_hi + 32768) >> 16;
*C_in_ptr_hi = (sin_val * -C_in_val_lo + cos_val * C_in_val_hi + 32768) >> 16;
mlt_val_lo = *mlt_ptr_lo;
mlt_val_hi = *--mlt_ptr_hi;
*mlt_ptr_lo++ = (cos_val * mlt_val_lo + sin_val * mlt_val_hi + 32768) >> 16;
*mlt_ptr_hi = (sin_val * -mlt_val_lo + cos_val * mlt_val_hi + 32768) >> 16;
cos_val = *cos_ptr_lo++;
sin_val = *sin_ptr_lo++;
C_in_val_lo = *C_in_ptr_lo;
C_in_val_hi = *--C_in_ptr_hi;
*C_in_ptr_lo++ = (cos_val * C_in_val_lo + sin_val * C_in_val_hi + 32768) >> 16;
*C_in_ptr_hi = (sin_val * C_in_val_lo - cos_val * C_in_val_hi + 32768) >> 16;
mlt_val_lo = *mlt_ptr_lo;
mlt_val_hi = *--mlt_ptr_hi;
*mlt_ptr_lo++ = (cos_val * mlt_val_lo + sin_val * mlt_val_hi + 32768) >> 16;
*mlt_ptr_hi = (sin_val * mlt_val_lo - cos_val * mlt_val_hi + 32768) >> 16;
}
C_in_ptr += n;
mlt_ptr += n;
}
set1_ptr++;
}
@ -408,7 +409,7 @@ static int imlt_dct4(int16_t* mlt_coefs, int16_t* new_samples, int mag_shift) {
new_ptr += 10;
}
/* below is some three way swapping tmp ptrs change between mlt<>new */
/* below is some three way swapping, tmp ptrs change between mlt<>new */
tmp0_ptr = mlt_coefs + 640;
tmp1_ptr = new_samples + 640;
for (n = 20; n <= 160; n *= 2) {
@ -532,20 +533,20 @@ static int imlt_dct4(int16_t* mlt_coefs, int16_t* new_samples, int mag_shift) {
return 0;
}
/* transform frequency domain MLT spectrum coefs to time domain PCM samples with reverse/inverse MLT */
/* "inverse_MLT" */
static int rmlt_coefs_to_samples(int mag_shift, int16_t* mlt_coefs, int16_t* old_samples, int16_t* out_samples /*, int p_samples_done*/) {
int res;
int16_t new_samples[640];
/* block transform coefs-to-samples using DCT-IV (inverse) */
/* block transform MLT spectrum coefs to time domain PCM samples using DCT-IV (inverse) */
res = imlt_dct4(mlt_coefs, new_samples, mag_shift);
if (res) return res;
if (res < 0) return res;
/* apply IMLT overlapped window filter function (640 samples) */
res = imlt_window(new_samples, old_samples, out_samples);
if (res) return res;
if (res < 0) return res;
//*p_samples_done = 640;/* in Namco's code but actually ignored */
//*p_samples_done = 640; /* in Namco's code but actually ignored */
return 0;
}
@ -802,7 +803,7 @@ static inline void index_to_array(int index, int* array_cv, int category) {
}
}
static int decode_vector_quantized_mlt_indices(uint32_t* data_u32, int bitpos, int bit_count, uint32_t* p_random_value, int* decoder_region_standard_deviation, int* power_categories, int16_t* mlt_coefs) {
static int decode_vector_quantized_mlt_indices(uint32_t* data_u32, int* p_bitpos, int bit_count, uint32_t* p_random_value, int* decoder_region_standard_deviation, int* power_categories, int16_t* mlt_coefs) {
int16_t standard_deviation;
int array_cv[MAX_VECTOR_DIMENSION];
int i, v, region, category, index;
@ -810,8 +811,8 @@ static int decode_vector_quantized_mlt_indices(uint32_t* data_u32, int bitpos, i
uint32_t* ptr_u32;
/* bitreading setup */
ptr_u32 = &data_u32[(bitpos >> 5)];
bitmask = 1 << (31 - (bitpos & 0x1F));
ptr_u32 = &data_u32[(*p_bitpos >> 5)];
bitmask = 1 << (31 - (*p_bitpos & 0x1F));
cur_u32 = *ptr_u32;
ptr_u32++;
@ -832,6 +833,7 @@ static int decode_vector_quantized_mlt_indices(uint32_t* data_u32, int bitpos, i
do {
int bit = (bitmask & cur_u32) != 0;
bitmask >>= 1;
(*p_bitpos)++;
if (bitmask == 0) {
bitmask = 0x80000000;
cur_u32 = *ptr_u32;
@ -872,6 +874,7 @@ static int decode_vector_quantized_mlt_indices(uint32_t* data_u32, int bitpos, i
negative = (bitmask & cur_u32) != 0;
bitmask >>= 1;
(*p_bitpos)++;
if (bitmask == 0) {
bitmask = 0x80000000;
cur_u32 = *ptr_u32;
@ -1015,7 +1018,7 @@ static int unpack_frame(int bit_rate, const uint8_t* data, int frame_size, /*int
res = categorize(
8 * expected_frame_size - bitpos,
absolute_region_power_index, power_categories, category_balances);
if (res) return res;
if (res < 0) return res;
/* adjust power categories (rate_adjust_categories) */
{
@ -1060,16 +1063,44 @@ static int unpack_frame(int bit_rate, const uint8_t* data, int frame_size, /*int
/* decode the quantized bits into MLT coefs */
res = decode_vector_quantized_mlt_indices(
data_u32, bitpos, 8 * expected_frame_size,
data_u32, &bitpos, 8 * expected_frame_size,
p_random_value,
decoder_region_standard_deviation, power_categories, mlt_coefs);
if (res) return res;
if (res < 0) return res;
/* test for errors (in refdec but not Namco's, useful to detect decryption) */
{
int bits_left = 8 * expected_frame_size - bitpos;
int i;
if (bits_left > 0) {
/* frame must be padded with 1s */
for (i = 0; i < bits_left; i++) {
int bit = (data_u32[bitpos >> 5] >> (31 - (bitpos & 0x1F))) & 1;
bitpos++;
if (bit == 0)
return -1;
}
}
else {
/* ? */
if (categorization_control < NUM_CATEGORIZATION_CONTROL_BITS - 1 && bits_left < 0)
return -2;
}
for (i = 0; i < NUMBER_OF_REGIONS; i++) {
if ((absolute_region_power_index[i] + ESF_ADJUSTMENT_TO_RMS_INDEX > 31) ||
(absolute_region_power_index[i] + ESF_ADJUSTMENT_TO_RMS_INDEX < -8))
return -4;
}
}
return 0;
}
/*****************************************************************************
* API
*****************************************************************************/
@ -1084,7 +1115,7 @@ struct g7221_handle {
uint32_t random_value;
};
g7221_handle* g7221_init(int bytes_per_frame, int flags) {
g7221_handle* g7221_init(int bytes_per_frame) {
g7221_handle* handle = NULL;
int bit_rate;
@ -1093,9 +1124,6 @@ g7221_handle* g7221_init(int bytes_per_frame, int flags) {
if (bit_rate != 24000 && bit_rate != 32000 && bit_rate != 48000)
goto fail;
//if (flags != 0)
// goto fail;
handle = calloc(1, sizeof(g7221_handle));
if (!handle) goto fail;
@ -1111,7 +1139,7 @@ fail:
}
void g7221_decode_frame(g7221_handle* handle, uint8_t* data, int16_t* out_samples) {
int g7221_decode_frame(g7221_handle* handle, uint8_t* data, int16_t* out_samples) {
int res;
int mag_shift;
@ -1124,28 +1152,28 @@ void g7221_decode_frame(g7221_handle* handle, uint8_t* data, int16_t* out_sample
}
#endif
/* Namco's decoder is designed so that out_samples can be used in place of mlt_coefs,
/* Namco's decoder is designed so that out_samples can be set in place of mlt_coefs,
* so we could avoid one extra buffer, but for clarity we'll leave as is */
/* unpack data into MLT spectrum coefs */
res = unpack_frame(handle->bit_rate, data, handle->frame_size, &mag_shift, handle->mlt_coefs, &handle->random_value);
if (res) goto fail;
if (res < 0) goto fail;
/* convert coefs to samples using reverse (inverse) MLT */
res = rmlt_coefs_to_samples(mag_shift, handle->mlt_coefs, handle->old_samples, out_samples);
if (res) goto fail;
if (res < 0) goto fail;
/* Namco also gets number of codes/samples done from unpack_frame/rmlt (ptr arg),
/* Namco also sets number of codes/samples done from unpack_frame/rmlt (ptr arg),
* but they seem unused */
//todo return values
return;
return 1;
fail:
return;
//;printf("S14: fail %i\n", res);
return 0;
}
#if 0
void g7221_decode_empty(g7221_handle* handle, int16_t* out_samples) {
int g7221_decode_empty(g7221_handle* handle, int16_t* out_samples) {
static const uint8_t empty_frame[0x3c] = {
0x1E,0x0B,0x89,0x40,0x02,0x4F,0x51,0x35, 0x10,0xA1,0xFE,0xDF,0x52,0x51,0x10,0x0B,
0xF0,0x69,0x7B,0xAE,0x18,0x17,0x00,0x52, 0x07,0x74,0xF4,0x65,0xA2,0x58,0xD8,0x3F,
@ -1155,8 +1183,8 @@ void g7221_decode_empty(g7221_handle* handle, int16_t* out_samples) {
int res;
int mag_shift;
/* This only seems to exist in older exes. Namco's samples don't seem to reach EOF,
* so this wouldn't need to be called. Doesn't seem to use encoder delay either. */
/* This only seems to exist in older exes. Namco's samples don't reach EOF, so this
* wouldn't need to be called. Doesn't seem to use encoder delay either. */
res = unpack_frame(24000, empty_frame, 0x3c, &mag_shift, handle->mlt_coefs, &handle->random_value);
if (res) goto fail;
@ -1165,9 +1193,9 @@ void g7221_decode_empty(g7221_handle* handle, int16_t* out_samples) {
res = rmlt_coefs_to_samples(mag_shift, handle->mlt_coefs, handle->old_samples, out_samples);
if (res) goto fail;
return;
return 1;
fail:
return;
return 0;
}
#endif
@ -1183,6 +1211,9 @@ void g7221_reset(g7221_handle* handle) {
* bnsf playing at the same time would get slightly different results */
}
void g7221_free(g7221_handle *handle) {
void g7221_free(g7221_handle* handle) {
if (!handle)
return;
free(handle);
}

6
src/coding/g7221_decoder_lib.h
View File

@ -10,14 +10,14 @@
typedef struct g7221_handle g7221_handle;
/* return a handle for decoding on successful init, NULL on failure */
g7221_handle* g7221_init(int bytes_per_frame, int flags);
g7221_handle* g7221_init(int bytes_per_frame);
/* decode a frame, at code_words, into 16-bit PCM in sample_buffer */
void g7221_decode_frame(g7221_handle* handle, uint8_t* data, int16_t* out_samples);
int g7221_decode_frame(g7221_handle* handle, uint8_t* data, int16_t* out_samples);
#if 0
/* decodes an empty frame after no more data is found (may be used to "drain" window samples */
void g7221_decode_empty(g7221_handle* handle, int16_t* out_samples);
int g7221_decode_empty(g7221_handle* handle, int16_t* out_samples);
#endif
/* reset the decoder to its initial state */

18
src/coding/g7221_decoder_lib_data.h
View File

@ -17,7 +17,7 @@
* for (i = 0; i < 640; i++)
* window[i] = floor(sin((PI/2.0) * (i + 0.5) / 640) * 32767.0)
* while the original int refdec table uses an altered formula? (smaller values) */
static const int16_t imlt_samples_window[MAX_DCT_LENGTH] = {
static const int16_t imlt_samples_window[MAX_DCT_LENGTH] = { /* "Out_Window"? */
40, 120, 201, 281, 361, 442, 522, 603, 683, 763,
844, 924, 1005, 1085, 1165, 1246, 1326, 1406, 1487, 1567,
1647, 1728, 1808, 1888, 1969, 2049, 2129, 2209, 2290, 2370,
@ -204,7 +204,7 @@ static const uint16_t imlt_cos_tables[636] = {
};
/* see cos table info */
static const uint16_t imlt_sin_tables[636] = {
static const uint16_t imlt_sin_tables[636] = { /* "sin_table" */
/* imlt_sin_table_64[320] (640/2) */
80, 241, 402, 562, 723, 884, 1045, 1206,
1367, 1527, 1688, 1849, 2010, 2171, 2331, 2492,
@ -326,7 +326,7 @@ static const uint16_t imlt_sin_tables[636] = {
/* vs refdec: has region 0 (unused, all 0s) and regions>13 (repeats of region 13) so they were removed.
* 2nd index only went to DIFF_REGION_POWER_LEVELS-1 and last was added (all 0s though so probably unused). */
static const int16_t differential_region_power_decoder_tree[NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS][2] = {
static const int16_t differential_region_power_decoder_tree[NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS][2] = { /* "rms_table"? */
{{ 1, 2},{ 3, 4},{ 5, 6},{ 7, 8},{ 9, 10},{ 11,-12},{-11,-10},{ -8, -9},{ -7, -6},{-13, 12},{ -5, -4},{ 0, 13},{ -3,-14},{ -2, 14},{ -1, 15},{-15, 16},{-16, 17},{-17, 18},{ 19, 20},{ 21, 22},{-18,-19},{-20,-21},{-22,-23},{ 0, 0}},
{{ 1, 2},{ 3, 4},{ 5, 6},{ 7, 8},{-10, -9},{ -8,-11},{ -7, -6},{ 9, -5},{ 10,-12},{ -4, 11},{-13, -3},{ 12, -2},{ 13,-14},{ -1, 14},{ 15,-15},{ 0, 16},{-16, 17},{-17, 18},{-18, 19},{ 20, 21},{ 22,-19},{-20,-21},{-22,-23},{ 0, 0}},
{{ 1, 2},{ 3, 4},{ 5, 6},{ 7, 8},{ 9, 10},{-12, 11},{-11,-13},{-10, -9},{ 12,-14},{ -8, -7},{-15, -6},{ 13, -5},{-16, -4},{ 14,-17},{ 15, -3},{ 16,-18},{ -2, 17},{ 18,-19},{ -1, 19},{-20, 20},{ 0, 21},{ 22,-21},{-22,-23},{ 0, 0}},
@ -343,7 +343,7 @@ static const int16_t differential_region_power_decoder_tree[NUMBER_OF_REGIONS][D
};
/* vs refdec: same table */
static const int16_t mlt_quant_centroid[NUM_CATEGORIES][NUM_BINS] = {
static const int16_t mlt_quant_centroid[NUM_CATEGORIES][NUM_BINS] = { /* "mlt_q" */
{ 0, 1606, 3119, 4586, 6049, 7502, 8941,10406,11851,13292,14736,16146,17566,19351, 0, 0},
{ 0, 2229, 4341, 6401, 8471,10531,12583,14588,16673,18924, 0, 0, 0, 0, 0, 0},
{ 0, 3055, 5998, 8929,11806,14680,17680, 0, 0, 0, 0, 0, 0, 0, 0, 0},
@ -361,7 +361,7 @@ static const int16_t expected_bits_table[NUM_CATEGORIES] = {
/* vs refdec: Namco uses positive values *2 but I'm not sure what they are for (some index access)
* so these are the refdec values */
static const int16_t mlt_decoder_tree_category_0[180][2] = {
static const int16_t mlt_decoder_tree_category_0[180][2] = { /* "reasion_huffman_table"? */
{ 1, 0},{ 2, 3},{ 4, 5},{ 6, 7},{ 8, 9},{ -1, -14},{ 10, 11},{ 12, 13},
{ 14, 15},{ 16, 17},{ 18, 19},{ -15, 20},{ 21, 22},{ 23, -28},{ 24, -2},{ 25, 26},
{ 27, 28},{ 29, 30},{ 31, 32},{ -29, 33},{ -16, 34},{ -3, 35},{ 36, 37},{ -42, 38},
@ -541,7 +541,7 @@ static const int16_t *table_of_decoder_tables[NUM_CATEGORIES-1] = {
/* vs refdec: same table */
static const int16_t region_standard_deviation_table[REGION_POWER_TABLE_SIZE] = {
static const int16_t region_standard_deviation_table[REGION_POWER_TABLE_SIZE] = { /* "rnd_reg"? */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 1, 1,
@ -559,17 +559,17 @@ static const int16_t number_of_vectors[NUM_CATEGORIES] = {
10, 10, 10, 5, 5, 4, 4, 0,
};
/* vs refdec: same table but last index is 1 */
static const int16_t vector_dimension[NUM_CATEGORIES] = {
static const int16_t vector_dimension[NUM_CATEGORIES] = { /* "vd_inv"? */
2, 2, 2, 4, 4, 5, 5, 0,
};
/* vs refdec: pre-adds one instead of in runtime and last index is 1 */
static const int16_t max_bin_plus1[NUM_CATEGORIES] = {
static const int16_t max_bin_plus1[NUM_CATEGORIES] = { /* "kmax_p1" */
14, 10, 7, 5, 4, 3, 2, 0,
};
/* vs refdec: pre-scaled x2 (cat3 subs -1 and cat5/7 -2 too) */
static const uint16_t max_bin_plus_one_inverse_scaled[8] = {
static const uint16_t max_bin_plus_one_inverse_scaled[8] = { /* "kmax_p1_inv" */
4682, 6554, 9363, 13108, 16384, 21846, 32768, 0,
};