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-rw-r--r--libfaad2/drm_dec.c240
1 files changed, 120 insertions, 120 deletions
diff --git a/libfaad2/drm_dec.c b/libfaad2/drm_dec.c
index 8bf905169d..d6f76d8720 100644
--- a/libfaad2/drm_dec.c
+++ b/libfaad2/drm_dec.c
@@ -46,7 +46,7 @@ typedef const int8_t (*drm_ps_huff_tab)[2];
/* binary search huffman tables */
-static const int8_t f_huffman_sa[][2] =
+static const int8_t f_huffman_sa[][2] =
{
{ /*0*/ -15, 1 }, /* index 0: 1 bits: x */
{ 2, 3 }, /* index 1: 2 bits: 1x */
@@ -64,7 +64,7 @@ static const int8_t f_huffman_sa[][2] =
{ /*-7*/ -22, /*-6*/ -21 } /* index 13: 7 bits: 111111x */
};
-static const int8_t t_huffman_sa[][2] =
+static const int8_t t_huffman_sa[][2] =
{
{ /*0*/ -15, 1 }, /* index 0: 1 bits: x */
{ 2, 3 }, /* index 1: 2 bits: 1x */
@@ -82,7 +82,7 @@ static const int8_t t_huffman_sa[][2] =
{ /*6*/ -9, /*7*/ -8 } /* index 13: 9 bits: 11111111x */
};
-static const int8_t f_huffman_pan[][2] =
+static const int8_t f_huffman_pan[][2] =
{
{ /*0*/ -15, 1 }, /* index 0: 1 bits: x */
{ /*-1*/ -16, 2 }, /* index 1: 2 bits: 1x */
@@ -114,7 +114,7 @@ static const int8_t f_huffman_pan[][2] =
{ /*12*/ -3, /*14*/ -1 } /* index 27: 16 bits: 111111111111111x */
};
-static const int8_t t_huffman_pan[][2] =
+static const int8_t t_huffman_pan[][2] =
{
{ /*0*/ -15, 1 }, /* index 0: 1 bits: x */
{ /*-1*/ -16, 2 }, /* index 1: 2 bits: 1x */
@@ -147,7 +147,7 @@ static const int8_t t_huffman_pan[][2] =
};
/* There are 3 classes in the standard but the last 2 are identical */
-static const real_t sa_quant[8][2] =
+static const real_t sa_quant[8][2] =
{
{ FRAC_CONST(0.0000), FRAC_CONST(0.0000) },
{ FRAC_CONST(0.0501), FRAC_CONST(0.1778) },
@@ -161,7 +161,7 @@ static const real_t sa_quant[8][2] =
/* We don't need the actual quantizer values */
#if 0
-static const real_t pan_quant[8][5] =
+static const real_t pan_quant[8][5] =
{
{ COEF_CONST(0.0000), COEF_CONST(0.0000), COEF_CONST(0.0000), COEF_CONST(0.0000), COEF_CONST(0.0000) },
{ COEF_CONST(0.1661), COEF_CONST(0.1661), COEF_CONST(0.3322), COEF_CONST(0.3322), COEF_CONST(0.3322) },
@@ -200,35 +200,35 @@ static const real_t pan_pow_2_neg[8][5] = {
/* 2^(pan_quant[x][y]/30) */
static const real_t pan_pow_2_30_pos[8][5] = {
- { COEF_CONST(1), COEF_CONST(1), COEF_CONST(1), COEF_CONST(1), COEF_CONST(1) },
- { COEF_CONST(1.003845098), COEF_CONST(1.003845098), COEF_CONST(1.007704982), COEF_CONST(1.007704982), COEF_CONST(1.007704982) },
- { COEF_CONST(1.007704982), COEF_CONST(1.007704982), COEF_CONST(1.01546933), COEF_CONST(1.019373909), COEF_CONST(1.019373909) },
- { COEF_CONST(1.011579706), COEF_CONST(1.01546933), COEF_CONST(1.023293502), COEF_CONST(1.035142941), COEF_CONST(1.039123167) },
+ { COEF_CONST(1), COEF_CONST(1), COEF_CONST(1), COEF_CONST(1), COEF_CONST(1) },
+ { COEF_CONST(1.003845098), COEF_CONST(1.003845098), COEF_CONST(1.007704982), COEF_CONST(1.007704982), COEF_CONST(1.007704982) },
+ { COEF_CONST(1.007704982), COEF_CONST(1.007704982), COEF_CONST(1.01546933), COEF_CONST(1.019373909), COEF_CONST(1.019373909) },
+ { COEF_CONST(1.011579706), COEF_CONST(1.01546933), COEF_CONST(1.023293502), COEF_CONST(1.035142941), COEF_CONST(1.039123167) },
{ COEF_CONST(1.01546933), COEF_CONST(1.023293502), COEF_CONST(1.035142941), COEF_CONST(1.051155908), COEF_CONST(1.059252598) },
- { COEF_CONST(1.019373909), COEF_CONST(1.03117796), COEF_CONST(1.051155908), COEF_CONST(1.071518432), COEF_CONST(1.0839263) },
- { COEF_CONST(1.023293502), COEF_CONST(1.043118698), COEF_CONST(1.067414119), COEF_CONST(1.092277933), COEF_CONST(1.113439626) },
+ { COEF_CONST(1.019373909), COEF_CONST(1.03117796), COEF_CONST(1.051155908), COEF_CONST(1.071518432), COEF_CONST(1.0839263) },
+ { COEF_CONST(1.023293502), COEF_CONST(1.043118698), COEF_CONST(1.067414119), COEF_CONST(1.092277933), COEF_CONST(1.113439626) },
{ COEF_CONST(1.03117796), COEF_CONST(1.055195268), COEF_CONST(1.0839263), COEF_CONST(1.113439626), COEF_CONST(1.143756546) }
};
/* 2^(-pan_quant[x][y]/30) */
static const real_t pan_pow_2_30_neg[8][5] = {
{ COEF_CONST(1), COEF_CONST(1), COEF_CONST(1), COEF_CONST(1), COEF_CONST(1) },
- { COEF_CONST(0.99616963), COEF_CONST(0.99616963), COEF_CONST(0.992353931), COEF_CONST(0.992353931), COEF_CONST(0.99235393) },
- { COEF_CONST(0.992353931), COEF_CONST(0.992353931), COEF_CONST(0.984766325), COEF_CONST(0.980994305), COEF_CONST(0.980994305) },
- { COEF_CONST(0.988552848), COEF_CONST(0.984766325), COEF_CONST(0.977236734), COEF_CONST(0.966050157), COEF_CONST(0.962349827) },
- { COEF_CONST(0.984766325), COEF_CONST(0.977236734), COEF_CONST(0.966050157), COEF_CONST(0.951333663), COEF_CONST(0.944061881) },
- { COEF_CONST(0.980994305), COEF_CONST(0.969764715), COEF_CONST(0.951333663), COEF_CONST(0.933255062), COEF_CONST(0.922571949) },
- { COEF_CONST(0.977236734), COEF_CONST(0.958663671), COEF_CONST(0.936843519), COEF_CONST(0.915517901), COEF_CONST(0.898117847) },
+ { COEF_CONST(0.99616963), COEF_CONST(0.99616963), COEF_CONST(0.992353931), COEF_CONST(0.992353931), COEF_CONST(0.99235393) },
+ { COEF_CONST(0.992353931), COEF_CONST(0.992353931), COEF_CONST(0.984766325), COEF_CONST(0.980994305), COEF_CONST(0.980994305) },
+ { COEF_CONST(0.988552848), COEF_CONST(0.984766325), COEF_CONST(0.977236734), COEF_CONST(0.966050157), COEF_CONST(0.962349827) },
+ { COEF_CONST(0.984766325), COEF_CONST(0.977236734), COEF_CONST(0.966050157), COEF_CONST(0.951333663), COEF_CONST(0.944061881) },
+ { COEF_CONST(0.980994305), COEF_CONST(0.969764715), COEF_CONST(0.951333663), COEF_CONST(0.933255062), COEF_CONST(0.922571949) },
+ { COEF_CONST(0.977236734), COEF_CONST(0.958663671), COEF_CONST(0.936843519), COEF_CONST(0.915517901), COEF_CONST(0.898117847) },
{ COEF_CONST(0.969764715), COEF_CONST(0.947691892), COEF_CONST(0.922571949), COEF_CONST(0.898117847), COEF_CONST(0.874311936) }
};
static const real_t g_decayslope[MAX_SA_BAND] = {
- FRAC_CONST(1), FRAC_CONST(1), FRAC_CONST(1), FRAC_CONST(0.95),FRAC_CONST(0.9), FRAC_CONST(0.85), FRAC_CONST(0.8),
- FRAC_CONST(0.75),FRAC_CONST(0.7), FRAC_CONST(0.65),FRAC_CONST(0.6), FRAC_CONST(0.55),FRAC_CONST(0.5), FRAC_CONST(0.45),
+ FRAC_CONST(1), FRAC_CONST(1), FRAC_CONST(1), FRAC_CONST(0.95),FRAC_CONST(0.9), FRAC_CONST(0.85), FRAC_CONST(0.8),
+ FRAC_CONST(0.75),FRAC_CONST(0.7), FRAC_CONST(0.65),FRAC_CONST(0.6), FRAC_CONST(0.55),FRAC_CONST(0.5), FRAC_CONST(0.45),
FRAC_CONST(0.4), FRAC_CONST(0.35),FRAC_CONST(0.3), FRAC_CONST(0.25),FRAC_CONST(0.2), FRAC_CONST(0.15), FRAC_CONST(0.1),
- FRAC_CONST(0.05),FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0),
- FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0),
- FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0),
+ FRAC_CONST(0.05),FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0),
+ FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0),
+ FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0),
FRAC_CONST(0), FRAC_CONST(0), FRAC_CONST(0)
};
@@ -243,26 +243,26 @@ static const real_t sa_sqrt_1_minus[8][2] = {
{ FRAC_CONST(0.929071574), FRAC_CONST(0) }
};
-static const uint8_t sa_freq_scale[9][2] =
+static const uint8_t sa_freq_scale[9][2] =
{
- { 0, 0},
- { 1, 1},
- { 2, 2},
- { 3, 3},
- { 5, 5},
- { 7, 7},
- {10,10},
- {13,13},
+ { 0, 0},
+ { 1, 1},
+ { 2, 2},
+ { 3, 3},
+ { 5, 5},
+ { 7, 7},
+ {10,10},
+ {13,13},
{46,23}
};
-static const uint8_t pan_freq_scale[21] =
+static const uint8_t pan_freq_scale[21] =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 18, 22, 26, 32, 64
};
-static const uint8_t pan_quant_class[20] =
+static const uint8_t pan_quant_class[20] =
{
0, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 3, 3, 3, 4, 4, 4
@@ -270,42 +270,42 @@ static const uint8_t pan_quant_class[20] =
/* Inverse mapping lookup */
static const uint8_t pan_inv_freq[64] = {
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18,
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18,
19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19
};
static const uint8_t sa_inv_freq[MAX_SA_BAND] = {
0, 1, 2, 3, 3, 4, 4, 5, 5, 5, 6, 6, 6,
- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7
};
-static const real_t filter_coeff[] =
+static const real_t filter_coeff[] =
{
FRAC_CONST(0.65143905754106),
FRAC_CONST(0.56471812200776),
FRAC_CONST(0.48954165955695)
};
-static const uint8_t delay_length[][2] =
+static const uint8_t delay_length[][2] =
{
{ 1, 3 }, { 2, 4 }, { 3, 5 }
};
-static const real_t delay_fraction[] =
+static const real_t delay_fraction[] =
{
FRAC_CONST(0.43), FRAC_CONST(0.75), FRAC_CONST(0.347)
};
-static const real_t peak_decay[2] =
+static const real_t peak_decay[2] =
{
FRAC_CONST(0.58664621951003), FRAC_CONST(0.76592833836465)
};
-static const real_t smooth_coeff[2] =
+static const real_t smooth_coeff[2] =
{
FRAC_CONST(0.6), FRAC_CONST(0.25)
};
@@ -545,7 +545,7 @@ static int8_t sa_delta_clip(drm_ps_info *ps, int8_t i)
}
static int8_t pan_delta_clip(drm_ps_info *ps, int8_t i)
-{
+{
if (i < -7) {
/* printf(" PANminclip %d", i); */
ps->pan_decode_error = 1;
@@ -558,34 +558,34 @@ static int8_t pan_delta_clip(drm_ps_info *ps, int8_t i)
return i;
}
-static void drm_ps_delta_decode(drm_ps_info *ps)
+static void drm_ps_delta_decode(drm_ps_info *ps)
{
- uint8_t band;
+ uint8_t band;
- if (ps->bs_enable_sa)
- {
- if (ps->bs_sa_dt_flag && !ps->g_last_had_sa)
- {
+ if (ps->bs_enable_sa)
+ {
+ if (ps->bs_sa_dt_flag && !ps->g_last_had_sa)
+ {
for (band = 0; band < DRM_NUM_SA_BANDS; band++)
- {
+ {
ps->g_prev_sa_index[band] = 0;
- }
- }
+ }
+ }
if (ps->bs_sa_dt_flag)
{
- ps->g_sa_index[0] = sa_delta_clip(ps, ps->g_prev_sa_index[0]+ps->bs_sa_data[0]);
+ ps->g_sa_index[0] = sa_delta_clip(ps, ps->g_prev_sa_index[0]+ps->bs_sa_data[0]);
} else {
- ps->g_sa_index[0] = sa_delta_clip(ps,ps->bs_sa_data[0]);
+ ps->g_sa_index[0] = sa_delta_clip(ps,ps->bs_sa_data[0]);
}
-
+
for (band = 1; band < DRM_NUM_SA_BANDS; band++)
- {
+ {
if (ps->bs_sa_dt_flag)
{
ps->g_sa_index[band] = sa_delta_clip(ps, ps->g_prev_sa_index[band] + ps->bs_sa_data[band]);
} else {
- ps->g_sa_index[band] = sa_delta_clip(ps, ps->g_sa_index[band-1] + ps->bs_sa_data[band]);
+ ps->g_sa_index[band] = sa_delta_clip(ps, ps->g_sa_index[band-1] + ps->bs_sa_data[band]);
}
}
}
@@ -597,45 +597,45 @@ static void drm_ps_delta_decode(drm_ps_info *ps)
ps->bs_enable_pan = ps->g_last_had_pan;
ps->bs_enable_sa = ps->g_last_had_sa;
}
-
-
- if (ps->bs_enable_sa)
- {
+
+
+ if (ps->bs_enable_sa)
+ {
if (ps->sa_decode_error) {
for (band = 0; band < DRM_NUM_SA_BANDS; band++)
- {
+ {
ps->g_sa_index[band] = ps->g_last_good_sa_index[band];
}
} else {
for (band = 0; band < DRM_NUM_SA_BANDS; band++)
- {
+ {
ps->g_last_good_sa_index[band] = ps->g_sa_index[band];
}
}
}
-
- if (ps->bs_enable_pan)
+
+ if (ps->bs_enable_pan)
{
- if (ps->bs_pan_dt_flag && !ps->g_last_had_pan)
+ if (ps->bs_pan_dt_flag && !ps->g_last_had_pan)
{
/* The DRM PS spec doesn't say anything about this case. (deltacoded in time without a previous frame)
- AAC PS spec you must tread previous frame as 0, so that's what we try.
+ AAC PS spec you must tread previous frame as 0, so that's what we try.
*/
for (band = 0; band < DRM_NUM_PAN_BANDS; band++)
- {
+ {
ps->g_prev_pan_index[band] = 0;
}
- }
+ }
if (ps->bs_pan_dt_flag)
- {
+ {
ps->g_pan_index[0] = pan_delta_clip(ps, ps->g_prev_pan_index[0]+ps->bs_pan_data[0]);
} else {
ps->g_pan_index[0] = pan_delta_clip(ps, ps->bs_pan_data[0]);
}
-
+
for (band = 1; band < DRM_NUM_PAN_BANDS; band++)
- {
+ {
if (ps->bs_pan_dt_flag)
{
ps->g_pan_index[band] = pan_delta_clip(ps, ps->g_prev_pan_index[band] + ps->bs_pan_data[band]);
@@ -643,23 +643,23 @@ static void drm_ps_delta_decode(drm_ps_info *ps)
ps->g_pan_index[band] = pan_delta_clip(ps, ps->g_pan_index[band-1] + ps->bs_pan_data[band]);
}
}
-
+
if (ps->pan_decode_error) {
for (band = 0; band < DRM_NUM_PAN_BANDS; band++)
- {
+ {
ps->g_pan_index[band] = ps->g_last_good_pan_index[band];
}
} else {
for (band = 0; band < DRM_NUM_PAN_BANDS; band++)
- {
+ {
ps->g_last_good_pan_index[band] = ps->g_pan_index[band];
}
}
}
}
-static void drm_calc_sa_side_signal(drm_ps_info *ps, qmf_t X[38][64], uint8_t rateselect)
-{
+static void drm_calc_sa_side_signal(drm_ps_info *ps, qmf_t X[38][64], uint8_t rateselect)
+{
uint8_t s, b, k;
complex_t qfrac, tmp0, tmp, in, R0;
real_t peakdiff;
@@ -675,7 +675,7 @@ static void drm_calc_sa_side_signal(drm_ps_info *ps, qmf_t X[38][64], uint8_t ra
for (b = 0; b < sa_freq_scale[DRM_NUM_SA_BANDS][rateselect]; b++)
{
- /* set delay indices */
+ /* set delay indices */
for (k = 0; k < NUM_OF_LINKS; k++)
temp_delay_ser[k] = ps->delay_buf_index_ser[k];
@@ -683,7 +683,7 @@ static void drm_calc_sa_side_signal(drm_ps_info *ps, qmf_t X[38][64], uint8_t ra
IM(Phi_Fract) = IM(Phi_Fract_Qmf[b]);
for (s = 0; s < NUM_OF_SUBSAMPLES; s++)
- {
+ {
const real_t gamma = REAL_CONST(1.5);
const real_t sigma = REAL_CONST(1.5625);
@@ -718,8 +718,8 @@ static void drm_calc_sa_side_signal(drm_ps_info *ps, qmf_t X[38][64], uint8_t ra
} else {
transratio = MUL_R(DIV_R(nrg, MUL_R(peakdiff, gamma)), sigma);
}
-
- for (k = 0; k < NUM_OF_LINKS; k++)
+
+ for (k = 0; k < NUM_OF_LINKS; k++)
{
new_delay_slopes[k] = MUL_F(g_decayslope[b], filter_coeff[k]);
}
@@ -731,14 +731,14 @@ static void drm_calc_sa_side_signal(drm_ps_info *ps, qmf_t X[38][64], uint8_t ra
IM(ps->d_buff[0][b]) = IM(ps->d_buff[1][b]);
RE(ps->d_buff[1][b]) = RE(in);
- IM(ps->d_buff[1][b]) = IM(in);
+ IM(ps->d_buff[1][b]) = IM(in);
ComplexMult(&RE(tmp), &IM(tmp), RE(tmp0), IM(tmp0), RE(Phi_Fract), IM(Phi_Fract));
RE(R0) = RE(tmp);
IM(R0) = IM(tmp);
- for (k = 0; k < NUM_OF_LINKS; k++)
+ for (k = 0; k < NUM_OF_LINKS; k++)
{
RE(qfrac) = RE(Q_Fract_allpass_Qmf[b][k]);
IM(qfrac) = IM(Q_Fract_allpass_Qmf[b][k]);
@@ -766,19 +766,19 @@ static void drm_calc_sa_side_signal(drm_ps_info *ps, qmf_t X[38][64], uint8_t ra
if (++temp_delay_ser[k] >= delay_length[k][rateselect])
temp_delay_ser[k] = 0;
}
- }
+ }
}
for (k = 0; k < NUM_OF_LINKS; k++)
ps->delay_buf_index_ser[k] = temp_delay_ser[k];
}
-static void drm_add_ambiance(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64], qmf_t X_right[38][64])
+static void drm_add_ambiance(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64], qmf_t X_right[38][64])
{
- uint8_t s, b, ifreq, qclass;
+ uint8_t s, b, ifreq, qclass;
real_t sa_map[MAX_SA_BAND], sa_dir_map[MAX_SA_BAND], k_sa_map[MAX_SA_BAND], k_sa_dir_map[MAX_SA_BAND];
real_t new_dir_map, new_sa_map;
-
+
if (ps->bs_enable_sa)
{
/* Instead of dequantization and mapping, we use an inverse mapping
@@ -793,11 +793,11 @@ static void drm_add_ambiance(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[3
sa_map[b] = sa_quant[ps->g_prev_sa_index[ifreq]][qclass];
new_sa_map = sa_quant[ps->g_sa_index[ifreq]][qclass];
- k_sa_map[b] = MUL_F(inv_f_num_of_subsamples, (new_sa_map - sa_map[b]));
-
- sa_dir_map[b] = sa_sqrt_1_minus[ps->g_prev_sa_index[ifreq]][qclass];
+ k_sa_map[b] = MUL_F(inv_f_num_of_subsamples, (new_sa_map - sa_map[b]));
+
+ sa_dir_map[b] = sa_sqrt_1_minus[ps->g_prev_sa_index[ifreq]][qclass];
new_dir_map = sa_sqrt_1_minus[ps->g_sa_index[ifreq]][qclass];
-
+
k_sa_dir_map[b] = MUL_F(inv_f_num_of_subsamples, (new_dir_map - sa_dir_map[b]));
}
@@ -805,35 +805,35 @@ static void drm_add_ambiance(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[3
for (s = 0; s < NUM_OF_SUBSAMPLES; s++)
{
for (b = 0; b < sa_freq_scale[DRM_NUM_SA_BANDS][rateselect]; b++)
- {
+ {
QMF_RE(X_right[s][b]) = MUL_F(QMF_RE(X_left[s][b]), sa_dir_map[b]) - MUL_F(QMF_RE(ps->SA[s][b]), sa_map[b]);
QMF_IM(X_right[s][b]) = MUL_F(QMF_IM(X_left[s][b]), sa_dir_map[b]) - MUL_F(QMF_IM(ps->SA[s][b]), sa_map[b]);
QMF_RE(X_left[s][b]) = MUL_F(QMF_RE(X_left[s][b]), sa_dir_map[b]) + MUL_F(QMF_RE(ps->SA[s][b]), sa_map[b]);
QMF_IM(X_left[s][b]) = MUL_F(QMF_IM(X_left[s][b]), sa_dir_map[b]) + MUL_F(QMF_IM(ps->SA[s][b]), sa_map[b]);
-
+
sa_map[b] += k_sa_map[b];
sa_dir_map[b] += k_sa_dir_map[b];
}
for (b = sa_freq_scale[DRM_NUM_SA_BANDS][rateselect]; b < NUM_OF_QMF_CHANNELS; b++)
- {
+ {
QMF_RE(X_right[s][b]) = QMF_RE(X_left[s][b]);
QMF_IM(X_right[s][b]) = QMF_IM(X_left[s][b]);
}
}
- }
+ }
else {
for (s = 0; s < NUM_OF_SUBSAMPLES; s++)
{
for (b = 0; b < NUM_OF_QMF_CHANNELS; b++)
{
QMF_RE(X_right[s][b]) = QMF_RE(X_left[s][b]);
- QMF_IM(X_right[s][b]) = QMF_IM(X_left[s][b]);
+ QMF_IM(X_right[s][b]) = QMF_IM(X_left[s][b]);
}
}
}
}
-static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64], qmf_t X_right[38][64])
+static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64], qmf_t X_right[38][64])
{
uint8_t s, b, qclass, ifreq;
real_t tmp, coeff1, coeff2;
@@ -843,7 +843,7 @@ static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64
if (ps->bs_enable_pan)
{
- for (b = 0; b < NUM_OF_QMF_CHANNELS; b++)
+ for (b = 0; b < NUM_OF_QMF_CHANNELS; b++)
{
/* Instead of dequantization, 20->64 mapping and 2^G(x,y) we do an
inverse mapping 64->20 and look up the 2^G(x,y) values directly */
@@ -852,7 +852,7 @@ static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64
if (ps->g_prev_pan_index[ifreq] >= 0)
{
- pan_base[b] = pan_pow_2_pos[ps->g_prev_pan_index[ifreq]][qclass];
+ pan_base[b] = pan_pow_2_pos[ps->g_prev_pan_index[ifreq]][qclass];
} else {
pan_base[b] = pan_pow_2_neg[-ps->g_prev_pan_index[ifreq]][qclass];
}
@@ -861,7 +861,7 @@ static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64
/* a en b can be negative so we may need to inverse parts */
if (ps->g_pan_index[ifreq] >= 0)
{
- if (ps->g_prev_pan_index[ifreq] >= 0)
+ if (ps->g_prev_pan_index[ifreq] >= 0)
{
pan_delta[b] = MUL_C(pan_pow_2_30_pos[ps->g_pan_index[ifreq]][qclass],
pan_pow_2_30_neg[ps->g_prev_pan_index[ifreq]][qclass]);
@@ -870,7 +870,7 @@ static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64
pan_pow_2_30_pos[-ps->g_prev_pan_index[ifreq]][qclass]);
}
} else {
- if (ps->g_prev_pan_index[ifreq] >= 0)
+ if (ps->g_prev_pan_index[ifreq] >= 0)
{
pan_delta[b] = MUL_C(pan_pow_2_30_neg[-ps->g_pan_index[ifreq]][qclass],
pan_pow_2_30_neg[ps->g_prev_pan_index[ifreq]][qclass]);
@@ -889,7 +889,7 @@ static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64
tmp = pan_base[b];
coeff2 = DIV_R(REAL_CONST(2.0), (REAL_CONST(1.0) + tmp));
- coeff1 = MUL_R(coeff2, tmp);
+ coeff1 = MUL_R(coeff2, tmp);
QMF_RE(temp_l) = QMF_RE(X_left[s][b]);
QMF_IM(temp_l) = QMF_IM(X_left[s][b]);
@@ -900,20 +900,20 @@ static void drm_add_pan(drm_ps_info *ps, uint8_t rateselect, qmf_t X_left[38][64
QMF_IM(X_left[s][b]) = MUL_R(QMF_IM(temp_l), coeff1);
QMF_RE(X_right[s][b]) = MUL_R(QMF_RE(temp_r), coeff2);
QMF_IM(X_right[s][b]) = MUL_R(QMF_IM(temp_r), coeff2);
-
+
/* 2^(a+k*b) = 2^a * 2^b * ... * 2^b */
/* ^^^^^^^^^^^^^^^ k times */
pan_base[b] = MUL_C(pan_base[b], pan_delta[b]);
- }
- }
- }
+ }
+ }
+ }
}
drm_ps_info *drm_ps_init(void)
{
drm_ps_info *ps = (drm_ps_info*)faad_malloc(sizeof(drm_ps_info));
- memset(ps, 0, sizeof(drm_ps_info));
+ memset(ps, 0, sizeof(drm_ps_info));
return ps;
}
@@ -927,14 +927,14 @@ void drm_ps_free(drm_ps_info *ps)
uint8_t drm_ps_decode(drm_ps_info *ps, uint8_t guess, uint32_t samplerate, qmf_t X_left[38][64], qmf_t X_right[38][64])
{
uint8_t rateselect = (samplerate >= 24000);
-
- if (ps == NULL)
+
+ if (ps == NULL)
{
memcpy(X_right, X_left, sizeof(qmf_t)*30*64);
- return 0;
- }
+ return 0;
+ }
- if (!ps->drm_ps_data_available && !guess)
+ if (!ps->drm_ps_data_available && !guess)
{
memcpy(X_right, X_left, sizeof(qmf_t)*30*64);
memset(ps->g_prev_sa_index, 0, sizeof(ps->g_prev_sa_index));
@@ -949,13 +949,13 @@ uint8_t drm_ps_decode(drm_ps_info *ps, uint8_t guess, uint32_t samplerate, qmf_t
ps->sa_decode_error = 0;
ps->pan_decode_error = 0;
drm_ps_delta_decode(ps);
- } else
+ } else
{
ps->sa_decode_error = 1;
ps->pan_decode_error = 1;
/* don't even bother decoding */
}
-
+
ps->drm_ps_data_available = 0;
drm_calc_sa_side_signal(ps, X_left, rateselect);
@@ -963,19 +963,19 @@ uint8_t drm_ps_decode(drm_ps_info *ps, uint8_t guess, uint32_t samplerate, qmf_t
if (ps->bs_enable_sa)
{
- ps->g_last_had_sa = 1;
+ ps->g_last_had_sa = 1;
- memcpy(ps->g_prev_sa_index, ps->g_sa_index, sizeof(int8_t) * DRM_NUM_SA_BANDS);
+ memcpy(ps->g_prev_sa_index, ps->g_sa_index, sizeof(int8_t) * DRM_NUM_SA_BANDS);
} else {
ps->g_last_had_sa = 0;
}
-
+
if (ps->bs_enable_pan)
{
drm_add_pan(ps, rateselect, X_left, X_right);
-
- ps->g_last_had_pan = 1;
+
+ ps->g_last_had_pan = 1;
memcpy(ps->g_prev_pan_index, ps->g_pan_index, sizeof(int8_t) * DRM_NUM_PAN_BANDS);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 14:58:57 +0000