static int mod_init(void)
{
if (bind_dbmod(db_url.s, &db )) {
LOG(L_CRIT, "Cannot bind to database module! "
"Did you forget to load a database module ?\n");
return -1;
}
/* Check if cache needs to be loaded from domain table */
if (db_mode) {
if (connect_db() < 0) goto error;
if (check_version() < 0) goto error;
if (allocate_tables() < 0) goto error;
if (reload_domain_list() < 0) goto error;
disconnect_db();
}
return 0;
error:
disconnect_db();
return -1;
}
/** recompute tables for these filterbank parameters */
static
void recompute_tables(const unsigned bands,
const double * const real_filter_coefficients,
const double * const imag_filter_coefficients,
const double * const normalization_factors)
{
unsigned exponent, band;
double temp;
release_tables();
allocate_tables(bands);
for (exponent = 1; exponent <= TABLE_SIZE; ++exponent) {
unsigned table_idx = exponent - 1;
for (band = 0; band < bands; ++band) {
if (exponent == 1) {
precomp_real_pow[band] = real_filter_coefficients[band];
precomp_imag_pow[band] = imag_filter_coefficients[band];
}
else {
complex_mult_(precomp_real_pow[(table_idx-1) * bands + band],
precomp_imag_pow[(table_idx-1) * bands + band],
real_filter_coefficients[band],
imag_filter_coefficients[band],
precomp_real_pow[table_idx * bands + band],
precomp_imag_pow[table_idx * bands + band]);
}
complex_reciprocal_(precomp_real_pow[table_idx * bands + band],
precomp_imag_pow[table_idx * bands + band],
precomp_real_norm[table_idx * bands + band],
precomp_imag_norm[table_idx * bands + band],
temp);
precomp_real_norm[table_idx * bands + band] *=
normalization_factors[band];
precomp_imag_norm[table_idx * bands + band] *=
normalization_factors[band];
}
}
}
/**
* Initialize the table_rV, table_gU[i], table_gV, and table_bU fields
* in SwsContext
*
* @param inv_table the YUV -> RGB table (this is a line of Inverse_Table_6_9)
* @param fullRange 0->MPEG YUV space 1->JPEG YUV space
*/
int yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
{
int i;
static uint8_t ytable[1024];
int64_t cy, oy;
int64_t crv, cbu, cgu, cgv;
int entry_size = 0;
uint8_t *table_r, *table_g, *table_b;
int value;
if ((inv_table[0] == 0) || (inv_table[1] == 0) || (inv_table[2] == 0) || (inv_table[3] == 0)) {
MSG_ERR("Invalid YUV ---> RGB table!\n");
return -1;
}
crv = inv_table[0];
cbu = inv_table[1];
cgu = inv_table[2];
cgv = inv_table[3];
if (fullRange) {
cy = 1 << 16;
oy = 0;
crv= (crv*224) / 255;
cbu= (cbu*224) / 255;
cgu= (cgu*224) / 255;
cgv= (cgv*224) / 255;
//FIXME maybe its cleaner if the tables where based on full range (*244/255)
} else {
cy = ((1 << 16) * 255) / 219;
oy= 16 << 16;
}
cy = (cy *contrast )>>16;
crv= (crv*contrast * saturation)>>32;
cbu= (cbu*contrast * saturation)>>32;
cgu= (cgu*contrast * saturation)>>32;
cgv= (cgv*contrast * saturation)>>32;
oy -= 256*brightness;
for (i = 0; i < 1024; i++) {
value = (cy*(((i - YTABLE_MIN)<<16) - oy) + (1<<31))>>32;
ytable[i] = av_clip_uint8(value);
}
entry_size = get_entry_size(fmt_depth(c->dstFormat));
av_free(c->yuvTable);
c->yuvTable = allocate_tables(&table_r, &table_g, &table_b, fmt_depth(c->dstFormat));
if (c->yuvTable == NULL) {
return -1;
}
switch (fmt_depth(c->dstFormat)) {
case 32:
for (i = -198; i < 256 + 197; i++) {
value = ytable[i + YTABLE_MIN];
if (isBGR(c->dstFormat)) {
value <<= 16;
}
((uint32_t *)table_r)[i] = value;
}
for (i = -133; i < 256 + 132; i++) {
((uint32_t *)table_g)[i] = ytable[i + YTABLE_MIN] << 8;
}
for (i = -233; i < 256 + 232; i++) {
value = ytable[i + YTABLE_MIN];
if (!isBGR(c->dstFormat)) {
value <<= 16;
}
((uint32_t *)table_b)[i] = value;
}
break;
case 24:
for (i = -233; i < 256 + 232; i++) {
((uint8_t * )table_b)[i] = ytable[i + YTABLE_MIN];
}
break;
case 15:
case 16:
for (i = -198; i < 256 + 197; i++) {
value = ytable[i + YTABLE_MIN] >> 3;
if (isBGR(c->dstFormat)) {
value <<= ((fmt_depth(c->dstFormat) == 16) ? 11 : 10);
}
((uint16_t *)table_r)[i] = value;
}
for (i = -133; i < 256 + 132; i++) {
value = ytable[i + YTABLE_MIN];
value >>= ((fmt_depth(c->dstFormat) == 16) ? 2 : 3);
((uint16_t *)table_g)[i] = value << 5;
}
for (i = -233; i < 256 + 232; i++) {
value = ytable[i + YTABLE_MIN] >> 3;
if (!isBGR(c->dstFormat)) {
value <<= ((fmt_depth(c->dstFormat) == 16) ? 11 : 10);
}
((uint16_t *)table_b)[i] = value;
}
break;
case 8:
for (i = -198; i < 256 + 197; i++) {
value = (ytable[i + YTABLE_MIN - 16] + 18) / 36;
if (isBGR(c->dstFormat)) {
value <<= 5;
}
((uint8_t *)table_r)[i] = value;
}
for (i = -133; i < 256 + 132; i++) {
value = (ytable[i + YTABLE_MIN - 16] + 18) / 36;
if (!isBGR(c->dstFormat)) {
value <<= 1;
}
((uint8_t *)table_g)[i] = value << 2;
}
for (i = -233; i < 256 + 232; i++) {
value = (ytable[i + YTABLE_MIN - 37] + 43) / 85;
if (!isBGR(c->dstFormat)) {
value <<= 6;
}
((uint8_t *)table_b)[i] = value;
}
break;
case 4:
for (i = -198; i < 256 + 197; i++) {
value = ytable[i + YTABLE_MIN - 110] >> 7;
if (isBGR(c->dstFormat)) {
value <<= 3;
}
((uint8_t *)table_r)[i] = value;
}
for (i = -133; i < 256 + 132; i++) {
value = (ytable[i + YTABLE_MIN - 37]+ 43) / 85;
((uint8_t *)table_g)[i] = value << 1;
}
for (i = -233; i < 256 + 232; i++) {
value = ytable[i + YTABLE_MIN - 110] >> 7;
if (!isBGR(c->dstFormat)) {
value <<= 3;
}
((uint8_t *)table_b)[i] = value;
}
break;
case 1:
for (i = 0; i < 256 + 256; i++) {
value = ytable[i + YTABLE_MIN - 110] >> 7;
((uint8_t *)table_g)[i] = value;
}
break;
default:
MSG_ERR("%ibpp not supported by yuv2rgb\n", fmt_depth(c->dstFormat));
av_free(c->yuvTable);
c->yuvTable = NULL;
return -1;
}
for (i = 0; i < 256; i++) {
c->table_rV[i] = table_r +
entry_size * ROUNDED_DIV(crv * (i - 128), 76309);
c->table_gU[i] = table_g +
entry_size * ROUNDED_DIV(cgu * (i - 128), 76309);
c->table_gV[i] = entry_size * ROUNDED_DIV(cgv * (i - 128), 76309);
c->table_bU[i] = table_b +
entry_size * ROUNDED_DIV(cbu * (i - 128), 76309);
}
return 0;
}