Merge commit '6c145ecf785dc3d26ba3fed3ea9892cc80244625'

* commit '6c145ecf785dc3d26ba3fed3ea9892cc80244625':
  twinvq: K&R formatting cosmetics

Conflicts:
	libavcodec/twinvq.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 312 insertions, 280 deletions

diff --git a/libavcodec/twinvq.c b/libavcodec/twinvq.c
index 8b9c79f655..9bc4659ded 100644
--- a/libavcodec/twinvq.c
+++ b/libavcodec/twinvq.c
@@ -19,6 +19,9 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include <math.h>
+#include <stdint.h>
+
 #include "libavutil/channel_layout.h"
 #include "libavutil/float_dsp.h"
 #include "avcodec.h"
@@ -27,10 +30,6 @@
 #include "internal.h"
 #include "lsp.h"
 #include "sinewin.h"
-
-#include <math.h>
-#include <stdint.h>
-
 #include "twinvq_data.h"
 
 enum FrameType {
@@ -95,83 +94,83 @@ typedef struct {
 
 static const ModeTab mode_08_08 = {
     {
-        { 8, bark_tab_s08_64,  10, tab.fcb08s  , 1, 5, tab.cb0808s0, tab.cb0808s1, 18},
-        { 2, bark_tab_m08_256, 20, tab.fcb08m  , 2, 5, tab.cb0808m0, tab.cb0808m1, 16},
-        { 1, bark_tab_l08_512, 30, tab.fcb08l  , 3, 6, tab.cb0808l0, tab.cb0808l1, 17}
+        { 8, bark_tab_s08_64,  10, tab.fcb08s, 1, 5, tab.cb0808s0, tab.cb0808s1, 18 },
+        { 2, bark_tab_m08_256, 20, tab.fcb08m, 2, 5, tab.cb0808m0, tab.cb0808m1, 16 },
+        { 1, bark_tab_l08_512, 30, tab.fcb08l, 3, 6, tab.cb0808l0, tab.cb0808l1, 17 }
     },
-    512 , 12, tab.lsp08,   1, 5, 3, 3, tab.shape08  , 8, 28, 20, 6, 40
+    512, 12, tab.lsp08, 1, 5, 3, 3, tab.shape08, 8, 28, 20, 6, 40
 };
 
 static const ModeTab mode_11_08 = {
     {
-        { 8, bark_tab_s11_64,  10, tab.fcb11s  , 1, 5, tab.cb1108s0, tab.cb1108s1, 29},
-        { 2, bark_tab_m11_256, 20, tab.fcb11m  , 2, 5, tab.cb1108m0, tab.cb1108m1, 24},
-        { 1, bark_tab_l11_512, 30, tab.fcb11l  , 3, 6, tab.cb1108l0, tab.cb1108l1, 27}
+        { 8, bark_tab_s11_64,  10, tab.fcb11s, 1, 5, tab.cb1108s0, tab.cb1108s1, 29 },
+        { 2, bark_tab_m11_256, 20, tab.fcb11m, 2, 5, tab.cb1108m0, tab.cb1108m1, 24 },
+        { 1, bark_tab_l11_512, 30, tab.fcb11l, 3, 6, tab.cb1108l0, tab.cb1108l1, 27 }
     },
-    512 , 16, tab.lsp11,   1, 6, 4, 3, tab.shape11  , 9, 36, 30, 7, 90
+    512, 16, tab.lsp11, 1, 6, 4, 3, tab.shape11, 9, 36, 30, 7, 90
 };
 
 static const ModeTab mode_11_10 = {
     {
-        { 8, bark_tab_s11_64,  10, tab.fcb11s  , 1, 5, tab.cb1110s0, tab.cb1110s1, 21},
-        { 2, bark_tab_m11_256, 20, tab.fcb11m  , 2, 5, tab.cb1110m0, tab.cb1110m1, 18},
-        { 1, bark_tab_l11_512, 30, tab.fcb11l  , 3, 6, tab.cb1110l0, tab.cb1110l1, 20}
+        { 8, bark_tab_s11_64,  10, tab.fcb11s, 1, 5, tab.cb1110s0, tab.cb1110s1, 21 },
+        { 2, bark_tab_m11_256, 20, tab.fcb11m, 2, 5, tab.cb1110m0, tab.cb1110m1, 18 },
+        { 1, bark_tab_l11_512, 30, tab.fcb11l, 3, 6, tab.cb1110l0, tab.cb1110l1, 20 }
     },
-    512 , 16, tab.lsp11,   1, 6, 4, 3, tab.shape11  , 9, 36, 30, 7, 90
+    512, 16, tab.lsp11, 1, 6, 4, 3, tab.shape11, 9, 36, 30, 7, 90
 };
 
 static const ModeTab mode_16_16 = {
     {
-        { 8, bark_tab_s16_128, 10, tab.fcb16s  , 1, 5, tab.cb1616s0, tab.cb1616s1, 16},
-        { 2, bark_tab_m16_512, 20, tab.fcb16m  , 2, 5, tab.cb1616m0, tab.cb1616m1, 15},
-        { 1, bark_tab_l16_1024,30, tab.fcb16l  , 3, 6, tab.cb1616l0, tab.cb1616l1, 16}
+        { 8, bark_tab_s16_128,  10, tab.fcb16s, 1, 5, tab.cb1616s0, tab.cb1616s1, 16 },
+        { 2, bark_tab_m16_512,  20, tab.fcb16m, 2, 5, tab.cb1616m0, tab.cb1616m1, 15 },
+        { 1, bark_tab_l16_1024, 30, tab.fcb16l, 3, 6, tab.cb1616l0, tab.cb1616l1, 16 }
     },
-    1024, 16, tab.lsp16,   1, 6, 4, 3, tab.shape16  , 9, 56, 60, 7, 180
+    1024, 16, tab.lsp16, 1, 6, 4, 3, tab.shape16, 9, 56, 60, 7, 180
 };
 
 static const ModeTab mode_22_20 = {
     {
-        { 8, bark_tab_s22_128, 10, tab.fcb22s_1, 1, 6, tab.cb2220s0, tab.cb2220s1, 18},
-        { 2, bark_tab_m22_512, 20, tab.fcb22m_1, 2, 6, tab.cb2220m0, tab.cb2220m1, 17},
-        { 1, bark_tab_l22_1024,32, tab.fcb22l_1, 4, 6, tab.cb2220l0, tab.cb2220l1, 18}
+        { 8, bark_tab_s22_128,  10, tab.fcb22s_1, 1, 6, tab.cb2220s0, tab.cb2220s1, 18 },
+        { 2, bark_tab_m22_512,  20, tab.fcb22m_1, 2, 6, tab.cb2220m0, tab.cb2220m1, 17 },
+        { 1, bark_tab_l22_1024, 32, tab.fcb22l_1, 4, 6, tab.cb2220l0, tab.cb2220l1, 18 }
     },
     1024, 16, tab.lsp22_1, 1, 6, 4, 3, tab.shape22_1, 9, 56, 36, 7, 144
 };
 
 static const ModeTab mode_22_24 = {
     {
-        { 8, bark_tab_s22_128, 10, tab.fcb22s_1, 1, 6, tab.cb2224s0, tab.cb2224s1, 15},
-        { 2, bark_tab_m22_512, 20, tab.fcb22m_1, 2, 6, tab.cb2224m0, tab.cb2224m1, 14},
-        { 1, bark_tab_l22_1024,32, tab.fcb22l_1, 4, 6, tab.cb2224l0, tab.cb2224l1, 15}
+        { 8, bark_tab_s22_128,  10, tab.fcb22s_1, 1, 6, tab.cb2224s0, tab.cb2224s1, 15 },
+        { 2, bark_tab_m22_512,  20, tab.fcb22m_1, 2, 6, tab.cb2224m0, tab.cb2224m1, 14 },
+        { 1, bark_tab_l22_1024, 32, tab.fcb22l_1, 4, 6, tab.cb2224l0, tab.cb2224l1, 15 }
     },
     1024, 16, tab.lsp22_1, 1, 6, 4, 3, tab.shape22_1, 9, 56, 36, 7, 144
 };
 
 static const ModeTab mode_22_32 = {
     {
-        { 4, bark_tab_s22_128, 10, tab.fcb22s_2, 1, 6, tab.cb2232s0, tab.cb2232s1, 11},
-        { 2, bark_tab_m22_256, 20, tab.fcb22m_2, 2, 6, tab.cb2232m0, tab.cb2232m1, 11},
-        { 1, bark_tab_l22_512, 32, tab.fcb22l_2, 4, 6, tab.cb2232l0, tab.cb2232l1, 12}
+        { 4, bark_tab_s22_128, 10, tab.fcb22s_2, 1, 6, tab.cb2232s0, tab.cb2232s1, 11 },
+        { 2, bark_tab_m22_256, 20, tab.fcb22m_2, 2, 6, tab.cb2232m0, tab.cb2232m1, 11 },
+        { 1, bark_tab_l22_512, 32, tab.fcb22l_2, 4, 6, tab.cb2232l0, tab.cb2232l1, 12 }
     },
-    512 , 16, tab.lsp22_2, 1, 6, 4, 4, tab.shape22_2, 9, 56, 36, 7, 72
+    512, 16, tab.lsp22_2, 1, 6, 4, 4, tab.shape22_2, 9, 56, 36, 7, 72
 };
 
 static const ModeTab mode_44_40 = {
     {
-        {16, bark_tab_s44_128, 10, tab.fcb44s  , 1, 6, tab.cb4440s0, tab.cb4440s1, 18},
-        { 4, bark_tab_m44_512, 20, tab.fcb44m  , 2, 6, tab.cb4440m0, tab.cb4440m1, 17},
-        { 1, bark_tab_l44_2048,40, tab.fcb44l  , 4, 6, tab.cb4440l0, tab.cb4440l1, 17}
+        { 16, bark_tab_s44_128,  10, tab.fcb44s, 1, 6, tab.cb4440s0, tab.cb4440s1, 18 },
+        { 4,  bark_tab_m44_512,  20, tab.fcb44m, 2, 6, tab.cb4440m0, tab.cb4440m1, 17 },
+        { 1,  bark_tab_l44_2048, 40, tab.fcb44l, 4, 6, tab.cb4440l0, tab.cb4440l1, 17 }
     },
-    2048, 20, tab.lsp44,   1, 6, 4, 4, tab.shape44  , 9, 84, 54, 7, 432
+    2048, 20, tab.lsp44, 1, 6, 4, 4, tab.shape44, 9, 84, 54, 7, 432
 };
 
 static const ModeTab mode_44_48 = {
     {
-        {16, bark_tab_s44_128, 10, tab.fcb44s  , 1, 6, tab.cb4448s0, tab.cb4448s1, 15},
-        { 4, bark_tab_m44_512, 20, tab.fcb44m  , 2, 6, tab.cb4448m0, tab.cb4448m1, 14},
-        { 1, bark_tab_l44_2048,40, tab.fcb44l  , 4, 6, tab.cb4448l0, tab.cb4448l1, 14}
+        { 16, bark_tab_s44_128,  10, tab.fcb44s, 1, 6, tab.cb4448s0, tab.cb4448s1, 15 },
+        { 4,  bark_tab_m44_512,  20, tab.fcb44m, 2, 6, tab.cb4448m0, tab.cb4448m1, 14 },
+        { 1,  bark_tab_l44_2048, 40, tab.fcb44l, 4, 6, tab.cb4448l0, tab.cb4448l1, 14 }
     },
-    2048, 20, tab.lsp44,   1, 6, 4, 4, tab.shape44  , 9, 84, 54, 7, 432
+    2048, 20, tab.lsp44, 1, 6, 4, 4, tab.shape44, 9, 84, 54, 7, 432
 };
 
 typedef struct TwinContext {
@@ -242,17 +241,17 @@ static void memset_float(float *buf, float val, int size)
 static float eval_lpc_spectrum(const float *lsp, float cos_val, int order)
 {
     int j;
-    float p = 0.5f;
-    float q = 0.5f;
-    float two_cos_w = 2.0f*cos_val;
+    float p         = 0.5f;
+    float q         = 0.5f;
+    float two_cos_w = 2.0f * cos_val;
 
-    for (j = 0; j + 1 < order; j += 2*2) {
+    for (j = 0; j + 1 < order; j += 2 * 2) {
         // Unroll the loop once since order is a multiple of four
-        q *= lsp[j  ] - two_cos_w;
-        p *= lsp[j+1] - two_cos_w;
+        q *= lsp[j]     - two_cos_w;
+        p *= lsp[j + 1] - two_cos_w;
 
-        q *= lsp[j+2] - two_cos_w;
-        p *= lsp[j+3] - two_cos_w;
+        q *= lsp[j + 2] - two_cos_w;
+        p *= lsp[j + 3] - two_cos_w;
     }
 
     p *= p * (2.0f - two_cos_w);
@@ -268,30 +267,30 @@ static void eval_lpcenv(TwinContext *tctx, const float *cos_vals, float *lpc)
 {
     int i;
     const ModeTab *mtab = tctx->mtab;
-    int size_s = mtab->size / mtab->fmode[FT_SHORT].sub;
+    int size_s          = mtab->size / mtab->fmode[FT_SHORT].sub;
 
-    for (i = 0; i < size_s/2; i++) {
+    for (i = 0; i < size_s / 2; i++) {
         float cos_i = tctx->cos_tabs[0][i];
-        lpc[i]          = eval_lpc_spectrum(cos_vals,  cos_i, mtab->n_lsp);
-        lpc[size_s-i-1] = eval_lpc_spectrum(cos_vals, -cos_i, mtab->n_lsp);
+        lpc[i]              = eval_lpc_spectrum(cos_vals,  cos_i, mtab->n_lsp);
+        lpc[size_s - i - 1] = eval_lpc_spectrum(cos_vals, -cos_i, mtab->n_lsp);
     }
 }
 
 static void interpolate(float *out, float v1, float v2, int size)
 {
     int i;
-    float step = (v1 - v2)/(size + 1);
+    float step = (v1 - v2) / (size + 1);
 
     for (i = 0; i < size; i++) {
-        v2 += step;
+        v2    += step;
         out[i] = v2;
     }
 }
 
 static inline float get_cos(int idx, int part, const float *cos_tab, int size)
 {
-    return part ? -cos_tab[size - idx - 1] :
-                   cos_tab[       idx    ];
+    return part ? -cos_tab[size - idx - 1]
+                :  cos_tab[idx];
 }
 
 /**
@@ -305,7 +304,7 @@ static inline float get_cos(int idx, int part, const float *cos_tab, int size)
  * @param step the size of a block "siiiibiiii"
  * @param in the cosinus of the LSP data
  * @param part is 0 for 0...PI (positive cossinus values) and 1 for PI...2PI
-          (negative cossinus values)
+ *        (negative cossinus values)
  * @param size the size of the whole output
  */
 static inline void eval_lpcenv_or_interp(TwinContext *tctx,
@@ -314,7 +313,7 @@ static inline void eval_lpcenv_or_interp(TwinContext *tctx,
                                          int size, int step, int part)
 {
     int i;
-    const ModeTab *mtab = tctx->mtab;
+    const ModeTab *mtab  = tctx->mtab;
     const float *cos_tab = tctx->cos_tabs[ftype];
 
     // Fill the 's'
@@ -325,33 +324,38 @@ static inline void eval_lpcenv_or_interp(TwinContext *tctx,
                               mtab->n_lsp);
 
     // Fill the 'iiiibiiii'
-    for (i = step; i <= size - 2*step; i += step) {
-        if (out[i + step] + out[i - step] >  1.95*out[i] ||
-            out[i + step]                 >=  out[i - step]) {
-            interpolate(out + i - step + 1, out[i], out[i-step], step - 1);
+    for (i = step; i <= size - 2 * step; i += step) {
+        if (out[i + step] + out[i - step] > 1.95 * out[i] ||
+            out[i + step]                 >= out[i - step]) {
+            interpolate(out + i - step + 1, out[i], out[i - step], step - 1);
         } else {
-            out[i - step/2] =
+            out[i - step / 2] =
                 eval_lpc_spectrum(in,
-                                  get_cos(i-step/2, part, cos_tab, size),
+                                  get_cos(i - step / 2, part, cos_tab, size),
                                   mtab->n_lsp);
-            interpolate(out + i - step   + 1, out[i-step/2], out[i-step  ], step/2 - 1);
-            interpolate(out + i - step/2 + 1, out[i       ], out[i-step/2], step/2 - 1);
+            interpolate(out + i - step + 1, out[i - step / 2],
+                        out[i - step], step / 2 - 1);
+            interpolate(out + i - step / 2 + 1, out[i],
+                        out[i - step / 2], step / 2 - 1);
         }
     }
 
-    interpolate(out + size - 2*step + 1, out[size-step], out[size - 2*step], step - 1);
+    interpolate(out + size - 2 * step + 1, out[size - step],
+                out[size - 2 * step], step - 1);
 }
 
 static void eval_lpcenv_2parts(TwinContext *tctx, enum FrameType ftype,
                                const float *buf, float *lpc,
                                int size, int step)
 {
-    eval_lpcenv_or_interp(tctx, ftype, lpc         , buf, size/2,   step, 0);
-    eval_lpcenv_or_interp(tctx, ftype, lpc + size/2, buf, size/2, 2*step, 1);
+    eval_lpcenv_or_interp(tctx, ftype, lpc, buf, size / 2, step, 0);
+    eval_lpcenv_or_interp(tctx, ftype, lpc + size / 2, buf, size / 2,
+                          2 * step, 1);
 
-    interpolate(lpc+size/2-step+1, lpc[size/2], lpc[size/2-step], step);
+    interpolate(lpc + size / 2 - step + 1, lpc[size / 2],
+                lpc[size / 2 - step], step);
 
-    memset_float(lpc + size - 2*step + 1, lpc[size - 2*step], 2*step - 1);
+    memset_float(lpc + size - 2 * step + 1, lpc[size - 2 * step], 2 * step - 1);
 }
 
 /**
@@ -392,26 +396,26 @@ static void dequant(TwinContext *tctx, GetBitContext *gb, float *out,
         }
         tmp1 = get_bits(gb, bits);
 
-        tab0 = cb0 + tmp0*cb_len;
-        tab1 = cb1 + tmp1*cb_len;
+        tab0 = cb0 + tmp0 * cb_len;
+        tab1 = cb1 + tmp1 * cb_len;
 
         for (j = 0; j < length; j++)
-            out[tctx->permut[ftype][pos+j]] = sign0*tab0[j] + sign1*tab1[j];
+            out[tctx->permut[ftype][pos + j]] = sign0 * tab0[j] +
+                                                sign1 * tab1[j];
 
         pos += length;
     }
-
 }
 
 static inline float mulawinv(float y, float clip, float mu)
 {
-    y = av_clipf(y/clip, -1, 1);
-    return clip * FFSIGN(y) * (exp(log(1+mu) * fabs(y)) - 1) / mu;
+    y = av_clipf(y / clip, -1, 1);
+    return clip * FFSIGN(y) * (exp(log(1 + mu) * fabs(y)) - 1) / mu;
 }
 
 /**
- * Evaluate a*b/400 rounded to the nearest integer. When, for example,
- * a*b == 200 and the nearest integer is ill-defined, use a table to emulate
+ * Evaluate a * b / 400 rounded to the nearest integer. When, for example,
+ * a * b == 200 and the nearest integer is ill-defined, use a table to emulate
  * the following broken float-based implementation used by the binary decoder:
  *
  * @code
@@ -419,30 +423,30 @@ static inline float mulawinv(float y, float clip, float mu)
  * {
  *    static float test; // Ugh, force gcc to do the division first...
  *
- *    test = a/400.;
- *    return b * test +  0.5;
+ *    test = a / 400.;
+ *    return b * test + 0.5;
  * }
  * @endcode
  *
- * @note if this function is replaced by just ROUNDED_DIV(a*b,400.), the stddev
- * between the original file (before encoding with Yamaha encoder) and the
- * decoded output increases, which leads one to believe that the encoder expects
- * exactly this broken calculation.
+ * @note if this function is replaced by just ROUNDED_DIV(a * b, 400.), the
+ * stddev between the original file (before encoding with Yamaha encoder) and
+ * the decoded output increases, which leads one to believe that the encoder
+ * expects exactly this broken calculation.
  */
 static int very_broken_op(int a, int b)
 {
-    int x = a*b + 200;
+    int x = a * b + 200;
     int size;
     const uint8_t *rtab;
 
-    if (x%400 || b%5)
-        return x/400;
+    if (x % 400 || b % 5)
+        return x / 400;
 
     x /= 400;
 
-    size = tabs[b/5].size;
-    rtab = tabs[b/5].tab;
-    return x - rtab[size*av_log2(2*(x - 1)/size)+(x - 1)%size];
+    size = tabs[b / 5].size;
+    rtab = tabs[b / 5].tab;
+    return x - rtab[size * av_log2(2 * (x - 1) / size) + (x - 1) % size];
 }
 
 /**
@@ -459,42 +463,44 @@ static void add_peak(int period, int width, const float *shape,
     int center;
 
     // First peak centered around zero
-    for (i = 0; i < width/2; i++)
+    for (i = 0; i < width / 2; i++)
         speech[i] += ppc_gain * *shape++;
 
-    for (i = 1; i < ROUNDED_DIV(len,width) ; i++) {
+    for (i = 1; i < ROUNDED_DIV(len, width); i++) {
         center = very_broken_op(period, i);
-        for (j = -width/2; j < (width+1)/2; j++)
-            speech[j+center] += ppc_gain * *shape++;
+        for (j = -width / 2; j < (width + 1) / 2; j++)
+            speech[j + center] += ppc_gain * *shape++;
     }
 
     // For the last block, be careful not to go beyond the end of the buffer
     center = very_broken_op(period, i);
-    for (j = -width/2; j < (width + 1)/2 && shape < shape_end; j++)
-        speech[j+center] += ppc_gain * *shape++;
+    for (j = -width / 2; j < (width + 1) / 2 && shape < shape_end; j++)
+        speech[j + center] += ppc_gain * *shape++;
 }
 
 static void decode_ppc(TwinContext *tctx, int period_coef, const float *shape,
                        float ppc_gain, float *speech)
 {
     const ModeTab *mtab = tctx->mtab;
-    int isampf = tctx->avctx->sample_rate/1000;
-    int ibps = tctx->avctx->bit_rate/(1000 * tctx->avctx->channels);
-    int min_period = ROUNDED_DIV(  40*2*mtab->size, isampf);
-    int max_period = ROUNDED_DIV(6*40*2*mtab->size, isampf);
-    int period_range = max_period - min_period;
+    int isampf          = tctx->avctx->sample_rate / 1000;
+    int ibps            = tctx->avctx->bit_rate / (1000 * tctx->avctx->channels);
+    int min_period      = ROUNDED_DIV(40 * 2 * mtab->size, isampf);
+    int max_period      = ROUNDED_DIV(40 * 2 * mtab->size * 6, isampf);
+    int period_range    = max_period - min_period;
 
     // This is actually the period multiplied by 400. It is just linearly coded
     // between its maximum and minimum value.
     int period = min_period +
-        ROUNDED_DIV(period_coef*period_range, (1 << mtab->ppc_period_bit) - 1);
+                 ROUNDED_DIV(period_coef * period_range,
+                             (1 << mtab->ppc_period_bit) - 1);
     int width;
 
     if (isampf == 22 && ibps == 32) {
         // For some unknown reason, NTT decided to code this case differently...
-        width = ROUNDED_DIV((period + 800)* mtab->peak_per2wid, 400*mtab->size);
+        width = ROUNDED_DIV((period + 800) * mtab->peak_per2wid,
+                            400 * mtab->size);
     } else
-        width =             (period      )* mtab->peak_per2wid/(400*mtab->size);
+        width = period * mtab->peak_per2wid / (400 * mtab->size);
 
     add_peak(period, width, shape, ppc_gain, speech, mtab->ppc_shape_len);
 }
@@ -504,27 +510,26 @@ static void dec_gain(TwinContext *tctx, GetBitContext *gb, enum FrameType ftype,
 {
     const ModeTab *mtab = tctx->mtab;
     int i, j;
-    int sub = mtab->fmode[ftype].sub;
-    float step     = AMP_MAX     / ((1 <<     GAIN_BITS) - 1);
+    int sub        = mtab->fmode[ftype].sub;
+    float step     = AMP_MAX / ((1 << GAIN_BITS) - 1);
     float sub_step = SUB_AMP_MAX / ((1 << SUB_GAIN_BITS) - 1);
 
     if (ftype == FT_LONG) {
         for (i = 0; i < tctx->avctx->channels; i++)
-            out[i] = (1./(1<<13)) *
-                mulawinv(step * 0.5 + step * get_bits(gb, GAIN_BITS),
-                         AMP_MAX, MULAW_MU);
+            out[i] = (1. / (1 << 13)) *
+                     mulawinv(step * 0.5 + step * get_bits(gb, GAIN_BITS),
+                              AMP_MAX, MULAW_MU);
     } else {
         for (i = 0; i < tctx->avctx->channels; i++) {
-            float val = (1./(1<<23)) *
-                mulawinv(step * 0.5 + step * get_bits(gb, GAIN_BITS),
-                         AMP_MAX, MULAW_MU);
-
-            for (j = 0; j < sub; j++) {
-                out[i*sub + j] =
-                    val*mulawinv(sub_step* 0.5 +
-                                 sub_step* get_bits(gb, SUB_GAIN_BITS),
-                                 SUB_AMP_MAX, MULAW_MU);
-            }
+            float val = (1. / (1 << 23)) *
+                        mulawinv(step * 0.5 + step * get_bits(gb, GAIN_BITS),
+                                 AMP_MAX, MULAW_MU);
+
+            for (j = 0; j < sub; j++)
+                out[i * sub + j] =
+                    val * mulawinv(sub_step * 0.5 +
+                                   sub_step * get_bits(gb, SUB_GAIN_BITS),
+                                   SUB_AMP_MAX, MULAW_MU);
         }
     }
 }
@@ -540,11 +545,11 @@ static void rearrange_lsp(int order, float *lsp, float min_dist)
     int i;
     float min_dist2 = min_dist * 0.5;
     for (i = 1; i < order; i++)
-        if (lsp[i] - lsp[i-1] < min_dist) {
-            float avg = (lsp[i] + lsp[i-1]) * 0.5;
+        if (lsp[i] - lsp[i - 1] < min_dist) {
+            float avg = (lsp[i] + lsp[i - 1]) * 0.5;
 
-            lsp[i-1] = avg - min_dist2;
-            lsp[i  ] = avg + min_dist2;
+            lsp[i - 1] = avg - min_dist2;
+            lsp[i]     = avg + min_dist2;
         }
 }
 
@@ -554,9 +559,9 @@ static void decode_lsp(TwinContext *tctx, int lpc_idx1, uint8_t *lpc_idx2,
     const ModeTab *mtab = tctx->mtab;
     int i, j;
 
-    const float *cb  =  mtab->lspcodebook;
-    const float *cb2 =  cb  + (1 << mtab->lsp_bit1)*mtab->n_lsp;
-    const float *cb3 =  cb2 + (1 << mtab->lsp_bit2)*mtab->n_lsp;
+    const float *cb  = mtab->lspcodebook;
+    const float *cb2 = cb  + (1 << mtab->lsp_bit1) * mtab->n_lsp;
+    const float *cb3 = cb2 + (1 << mtab->lsp_bit2) * mtab->n_lsp;
 
     const int8_t funny_rounding[4] = {
         -2,
@@ -567,17 +572,18 @@ static void decode_lsp(TwinContext *tctx, int lpc_idx1, uint8_t *lpc_idx2,
 
     j = 0;
     for (i = 0; i < mtab->lsp_split; i++) {
-        int chunk_end = ((i + 1)*mtab->n_lsp + funny_rounding[i])/mtab->lsp_split;
+        int chunk_end = ((i + 1) * mtab->n_lsp + funny_rounding[i]) /
+                        mtab->lsp_split;
         for (; j < chunk_end; j++)
-            lsp[j] = cb [lpc_idx1    * mtab->n_lsp + j] +
+            lsp[j] = cb[lpc_idx1     * mtab->n_lsp + j] +
                      cb2[lpc_idx2[i] * mtab->n_lsp + j];
     }
 
     rearrange_lsp(mtab->n_lsp, lsp, 0.0001);
 
     for (i = 0; i < mtab->n_lsp; i++) {
-        float tmp1 = 1. -          cb3[lpc_hist_idx*mtab->n_lsp + i];
-        float tmp2 =     hist[i] * cb3[lpc_hist_idx*mtab->n_lsp + i];
+        float tmp1 = 1.      - cb3[lpc_hist_idx * mtab->n_lsp + i];
+        float tmp2 = hist[i] * cb3[lpc_hist_idx * mtab->n_lsp + i];
         hist[i] = lsp[i];
         lsp[i]  = lsp[i] * tmp1 + tmp2;
     }
@@ -594,7 +600,7 @@ static void dec_lpc_spectrum_inv(TwinContext *tctx, float *lsp,
     int size = tctx->mtab->size / tctx->mtab->fmode[ftype].sub;
 
     for (i = 0; i < tctx->mtab->n_lsp; i++)
-        lsp[i] =  2*cos(lsp[i]);
+        lsp[i] = 2 * cos(lsp[i]);
 
     switch (ftype) {
     case FT_LONG:
@@ -609,74 +615,71 @@ static void dec_lpc_spectrum_inv(TwinContext *tctx, float *lsp,
     }
 }
 
+static const uint8_t wtype_to_wsize[] = { 0, 0, 2, 2, 2, 1, 0, 1, 1 };
+
 static void imdct_and_window(TwinContext *tctx, enum FrameType ftype, int wtype,
-                            float *in, float *prev, int ch)
+                             float *in, float *prev, int ch)
 {
-    FFTContext *mdct = &tctx->mdct_ctx[ftype];
+    FFTContext *mdct    = &tctx->mdct_ctx[ftype];
     const ModeTab *mtab = tctx->mtab;
-    int bsize = mtab->size / mtab->fmode[ftype].sub;
-    int size  = mtab->size;
-    float *buf1 = tctx->tmp_buf;
-    int j;
-    int wsize; // Window size
-    float *out = tctx->curr_frame + 2*ch*mtab->size;
+    int bsize           = mtab->size / mtab->fmode[ftype].sub;
+    int size            = mtab->size;
+    float *buf1         = tctx->tmp_buf;
+    int j, first_wsize, wsize; // Window size
+    float *out  = tctx->curr_frame + 2 * ch * mtab->size;
     float *out2 = out;
     float *prev_buf;
-    int first_wsize;
-
-    static const uint8_t wtype_to_wsize[]      = {0, 0, 2, 2, 2, 1, 0, 1, 1};
     int types_sizes[] = {
-        mtab->size /    mtab->fmode[FT_LONG  ].sub,
-        mtab->size /    mtab->fmode[FT_MEDIUM].sub,
-        mtab->size / (2*mtab->fmode[FT_SHORT ].sub),
+        mtab->size /  mtab->fmode[FT_LONG].sub,
+        mtab->size /  mtab->fmode[FT_MEDIUM].sub,
+        mtab->size / (mtab->fmode[FT_SHORT].sub * 2),
     };
 
-    wsize = types_sizes[wtype_to_wsize[wtype]];
+    wsize       = types_sizes[wtype_to_wsize[wtype]];
     first_wsize = wsize;
-    prev_buf = prev + (size - bsize)/2;
+    prev_buf    = prev + (size - bsize) / 2;
 
     for (j = 0; j < mtab->fmode[ftype].sub; j++) {
         int sub_wtype = ftype == FT_MEDIUM ? 8 : wtype;
 
         if (!j && wtype == 4)
             sub_wtype = 4;
-        else if (j == mtab->fmode[ftype].sub-1 && wtype == 7)
+        else if (j == mtab->fmode[ftype].sub - 1 && wtype == 7)
             sub_wtype = 7;
 
         wsize = types_sizes[wtype_to_wsize[sub_wtype]];
 
-        mdct->imdct_half(mdct, buf1 + bsize*j, in + bsize*j);
+        mdct->imdct_half(mdct, buf1 + bsize * j, in + bsize * j);
 
-        tctx->fdsp.vector_fmul_window(out2, prev_buf + (bsize-wsize) / 2,
+        tctx->fdsp.vector_fmul_window(out2, prev_buf + (bsize - wsize) / 2,
                                       buf1 + bsize * j,
                                       ff_sine_windows[av_log2(wsize)],
                                       wsize / 2);
         out2 += wsize;
 
-        memcpy(out2, buf1 + bsize*j + wsize/2, (bsize - wsize/2)*sizeof(float));
+        memcpy(out2, buf1 + bsize * j + wsize / 2,
+               (bsize - wsize / 2) * sizeof(float));
 
-        out2 += ftype == FT_MEDIUM ? (bsize-wsize)/2 : bsize - wsize;
+        out2 += ftype == FT_MEDIUM ? (bsize - wsize) / 2 : bsize - wsize;
 
-        prev_buf = buf1 + bsize*j + bsize/2;
+        prev_buf = buf1 + bsize * j + bsize / 2;
     }
 
-    tctx->last_block_pos[ch] = (size + first_wsize)/2;
+    tctx->last_block_pos[ch] = (size + first_wsize) / 2;
 }
 
 static void imdct_output(TwinContext *tctx, enum FrameType ftype, int wtype,
                          float **out)
 {
     const ModeTab *mtab = tctx->mtab;
-    int size1, size2;
-    float *prev_buf = tctx->prev_frame + tctx->last_block_pos[0];
-    int i;
+    float *prev_buf     = tctx->prev_frame + tctx->last_block_pos[0];
+    int size1, size2, i;
 
-    for (i = 0; i < tctx->avctx->channels; i++) {
+    for (i = 0; i < tctx->avctx->channels; i++)
         imdct_and_window(tctx, ftype, wtype,
-                         tctx->spectrum + i*mtab->size,
-                         prev_buf + 2*i*mtab->size,
+                         tctx->spectrum + i * mtab->size,
+                         prev_buf + 2 * i * mtab->size,
                          i);
-    }
 
     if (!out)
         return;
@@ -684,12 +687,14 @@ static void imdct_output(TwinContext *tctx, enum FrameType ftype, int wtype,
     size2 = tctx->last_block_pos[0];
     size1 = mtab->size - size2;
 
-    memcpy(&out[0][0    ], prev_buf,         size1 * sizeof(out[0][0]));
+    memcpy(&out[0][0],     prev_buf,         size1 * sizeof(out[0][0]));
     memcpy(&out[0][size1], tctx->curr_frame, size2 * sizeof(out[0][0]));
 
     if (tctx->avctx->channels == 2) {
-        memcpy(&out[1][0],     &prev_buf[2*mtab->size],         size1 * sizeof(out[1][0]));
-        memcpy(&out[1][size1], &tctx->curr_frame[2*mtab->size], size2 * sizeof(out[1][0]));
+        memcpy(&out[1][0], &prev_buf[2 * mtab->size],
+               size1 * sizeof(out[1][0]));
+        memcpy(&out[1][size1], &tctx->curr_frame[2 * mtab->size],
+               size2 * sizeof(out[1][0]));
         tctx->fdsp.butterflies_float(out[0], out[1], mtab->size);
     }
 }
@@ -698,37 +703,37 @@ static void dec_bark_env(TwinContext *tctx, const uint8_t *in, int use_hist,
                          int ch, float *out, float gain, enum FrameType ftype)
 {
     const ModeTab *mtab = tctx->mtab;
-    int i,j;
-    float *hist = tctx->bark_hist[ftype][ch];
-    float val = ((const float []) {0.4, 0.35, 0.28})[ftype];
-    int bark_n_coef  = mtab->fmode[ftype].bark_n_coef;
-    int fw_cb_len = mtab->fmode[ftype].bark_env_size / bark_n_coef;
-    int idx = 0;
+    int i, j;
+    float *hist     = tctx->bark_hist[ftype][ch];
+    float val       = ((const float []) { 0.4, 0.35, 0.28 })[ftype];
+    int bark_n_coef = mtab->fmode[ftype].bark_n_coef;
+    int fw_cb_len   = mtab->fmode[ftype].bark_env_size / bark_n_coef;
+    int idx         = 0;
 
     for (i = 0; i < fw_cb_len; i++)
         for (j = 0; j < bark_n_coef; j++, idx++) {
-            float tmp2 =
-                mtab->fmode[ftype].bark_cb[fw_cb_len*in[j] + i] * (1./4096);
-            float st = use_hist ?
-                (1. - val) * tmp2 + val*hist[idx] + 1. : tmp2 + 1.;
+            float tmp2 = mtab->fmode[ftype].bark_cb[fw_cb_len * in[j] + i] *
+                         (1. / 4096);
+            float st   = use_hist ? (1. - val) * tmp2 + val * hist[idx] + 1.
+                                  : tmp2 + 1.;
 
             hist[idx] = tmp2;
-            if (st < -1.) st = 1.;
+            if (st < -1.)
+                st = 1.;
 
             memset_float(out, st * gain, mtab->fmode[ftype].bark_tab[idx]);
             out += mtab->fmode[ftype].bark_tab[idx];
         }
-
 }
 
 static void read_and_decode_spectrum(TwinContext *tctx, GetBitContext *gb,
                                      float *out, enum FrameType ftype)
 {
     const ModeTab *mtab = tctx->mtab;
-    int channels = tctx->avctx->channels;
-    int sub = mtab->fmode[ftype].sub;
-    int block_size = mtab->size / sub;
-    float gain[CHANNELS_MAX*SUBBLOCKS_MAX];
+    int channels        = tctx->avctx->channels;
+    int sub             = mtab->fmode[ftype].sub;
+    int block_size      = mtab->size / sub;
+    float gain[CHANNELS_MAX * SUBBLOCKS_MAX];
     float ppc_shape[PPC_SHAPE_LEN_MAX * CHANNELS_MAX * 4];
     uint8_t bark1[CHANNELS_MAX][SUBBLOCKS_MAX][BARK_N_COEF_MAX];
     uint8_t bark_use_hist[CHANNELS_MAX][SUBBLOCKS_MAX];
@@ -757,17 +762,17 @@ static void read_and_decode_spectrum(TwinContext *tctx, GetBitContext *gb,
 
     for (i = 0; i < channels; i++) {
         lpc_hist_idx[i] = get_bits(gb, tctx->mtab->lsp_bit0);
-        lpc_idx1    [i] = get_bits(gb, tctx->mtab->lsp_bit1);
+        lpc_idx1[i]     = get_bits(gb, tctx->mtab->lsp_bit1);
 
         for (j = 0; j < tctx->mtab->lsp_split; j++)
             lpc_idx2[i][j] = get_bits(gb, tctx->mtab->lsp_bit2);
     }
 
     if (ftype == FT_LONG) {
-        int cb_len_p = (tctx->n_div[3] + mtab->ppc_shape_len*channels - 1)/
-            tctx->n_div[3];
+        int cb_len_p = (tctx->n_div[3] + mtab->ppc_shape_len * channels - 1) /
+                       tctx->n_div[3];
         dequant(tctx, gb, ppc_shape, FT_PPC, mtab->ppc_shape_cb,
-                mtab->ppc_shape_cb + cb_len_p*PPC_SHAPE_CB_SIZE, cb_len_p);
+                mtab->ppc_shape_cb + cb_len_p * PPC_SHAPE_CB_SIZE, cb_len_p);
     }
 
     for (i = 0; i < channels; i++) {
@@ -776,21 +781,22 @@ static void read_and_decode_spectrum(TwinContext *tctx, GetBitContext *gb,
 
         for (j = 0; j < sub; j++) {
             dec_bark_env(tctx, bark1[i][j], bark_use_hist[i][j], i,
-                         tctx->tmp_buf, gain[sub*i+j], ftype);
+                         tctx->tmp_buf, gain[sub * i + j], ftype);
 
-            tctx->fdsp.vector_fmul(chunk + block_size*j, chunk + block_size*j,
+            tctx->fdsp.vector_fmul(chunk + block_size * j,
+                                   chunk + block_size * j,
                                    tctx->tmp_buf, block_size);
-
         }
 
         if (ftype == FT_LONG) {
             float pgain_step = 25000. / ((1 << mtab->pgain_bit) - 1);
-            int p_coef = get_bits(gb, tctx->mtab->ppc_period_bit);
-            int g_coef = get_bits(gb, tctx->mtab->pgain_bit);
-            float v = 1./8192*
-                mulawinv(pgain_step*g_coef+ pgain_step/2, 25000., PGAIN_MU);
+            int p_coef       = get_bits(gb, tctx->mtab->ppc_period_bit);
+            int g_coef       = get_bits(gb, tctx->mtab->pgain_bit);
+            float v          = 1. / 8192 *
+                               mulawinv(pgain_step * g_coef + pgain_step / 2,
+                                        25000., PGAIN_MU);
 
-            decode_ppc(tctx, p_coef, ppc_shape + i*mtab->ppc_shape_len, v,
+            decode_ppc(tctx, p_coef, ppc_shape + i * mtab->ppc_shape_len, v,
                        chunk);
         }
 
@@ -806,16 +812,16 @@ static void read_and_decode_spectrum(TwinContext *tctx, GetBitContext *gb,
     }
 }
 
-static int twin_decode_frame(AVCodecContext * avctx, void *data,
+static int twin_decode_frame(AVCodecContext *avctx, void *data,
                              int *got_frame_ptr, AVPacket *avpkt)
 {
     AVFrame *frame     = data;
     const uint8_t *buf = avpkt->data;
-    int buf_size = avpkt->size;
-    TwinContext *tctx = avctx->priv_data;
+    int buf_size       = avpkt->size;
+    TwinContext *tctx  = avctx->priv_data;
     GetBitContext gb;
     const ModeTab *mtab = tctx->mtab;
-    float **out = NULL;
+    float **out         = NULL;
     enum FrameType ftype;
     int window_type, ret;
     static const enum FrameType wtype_to_ftype_table[] = {
@@ -823,7 +829,7 @@ static int twin_decode_frame(AVCodecContext * avctx, void *data,
         FT_MEDIUM, FT_LONG, FT_LONG,  FT_MEDIUM, FT_MEDIUM
     };
 
-    if (buf_size*8 < avctx->bit_rate*mtab->size/avctx->sample_rate + 8) {
+    if (buf_size * 8 < avctx->bit_rate * mtab->size / avctx->sample_rate + 8) {
         av_log(avctx, AV_LOG_ERROR,
                "Frame too small (%d bytes). Truncated file?\n", buf_size);
         return AVERROR(EINVAL);
@@ -852,7 +858,7 @@ static int twin_decode_frame(AVCodecContext * avctx, void *data,
 
     imdct_output(tctx, ftype, window_type, out);
 
-    FFSWAP(float*, tctx->curr_frame, tctx->prev_frame);
+    FFSWAP(float *, tctx->curr_frame, tctx->prev_frame);
 
     if (tctx->discarded_packets < 2) {
         tctx->discarded_packets++;
@@ -872,15 +878,15 @@ static av_cold int init_mdct_win(TwinContext *tctx)
 {
     int i, j, ret;
     const ModeTab *mtab = tctx->mtab;
-    int size_s = mtab->size / mtab->fmode[FT_SHORT].sub;
-    int size_m = mtab->size / mtab->fmode[FT_MEDIUM].sub;
-    int channels = tctx->avctx->channels;
-    float norm = channels == 1 ? 2. : 1.;
+    int size_s          = mtab->size / mtab->fmode[FT_SHORT].sub;
+    int size_m          = mtab->size / mtab->fmode[FT_MEDIUM].sub;
+    int channels        = tctx->avctx->channels;
+    float norm          = channels == 1 ? 2. : 1.;
 
     for (i = 0; i < 3; i++) {
-        int bsize = tctx->mtab->size/tctx->mtab->fmode[i].sub;
+        int bsize = tctx->mtab->size / tctx->mtab->fmode[i].sub;
         if ((ret = ff_mdct_init(&tctx->mdct_ctx[i], av_log2(bsize) + 1, 1,
-                                -sqrt(norm/bsize) / (1<<15))))
+                                -sqrt(norm / bsize) / (1 << 15))))
             return ret;
     }
 
@@ -898,23 +904,23 @@ static av_cold int init_mdct_win(TwinContext *tctx)
                      alloc_fail);
 
     for (i = 0; i < 3; i++) {
-        int m = 4*mtab->size/mtab->fmode[i].sub;
-        double freq = 2*M_PI/m;
+        int m       = 4 * mtab->size / mtab->fmode[i].sub;
+        double freq = 2 * M_PI / m;
         FF_ALLOC_OR_GOTO(tctx->avctx, tctx->cos_tabs[i],
                          (m / 4) * sizeof(*tctx->cos_tabs[i]), alloc_fail);
 
-        for (j = 0; j <= m/8; j++)
-            tctx->cos_tabs[i][j] = cos((2*j + 1)*freq);
-        for (j = 1; j <  m/8; j++)
-            tctx->cos_tabs[i][m/4-j] = tctx->cos_tabs[i][j];
+        for (j = 0; j <= m / 8; j++)
+            tctx->cos_tabs[i][j] = cos((2 * j + 1) * freq);
+        for (j = 1; j < m / 8; j++)
+            tctx->cos_tabs[i][m / 4 - j] = tctx->cos_tabs[i][j];
     }
 
-
     ff_init_ff_sine_windows(av_log2(size_m));
-    ff_init_ff_sine_windows(av_log2(size_s/2));
+    ff_init_ff_sine_windows(av_log2(size_s / 2));
     ff_init_ff_sine_windows(av_log2(mtab->size));
 
     return 0;
+
 alloc_fail:
     return AVERROR(ENOMEM);
 }
@@ -929,25 +935,24 @@ static void permutate_in_line(int16_t *tab, int num_vect, int num_blocks,
                               int block_size,
                               const uint8_t line_len[2], int length_div,
                               enum FrameType ftype)
-
 {
-    int i,j;
+    int i, j;
 
     for (i = 0; i < line_len[0]; i++) {
         int shift;
 
-        if (num_blocks == 1 ||
+        if (num_blocks == 1                             ||
             (ftype == FT_LONG && num_vect % num_blocks) ||
-            (ftype != FT_LONG && num_vect & 1         ) ||
+            (ftype != FT_LONG && num_vect & 1)          ||
             i == line_len[1]) {
             shift = 0;
         } else if (ftype == FT_LONG) {
             shift = i;
         } else
-            shift = i*i;
+            shift = i * i;
 
-        for (j = 0; j < num_vect && (j+num_vect*i < block_size*num_blocks); j++)
-            tab[i*num_vect+j] = i*num_vect + (j + shift) % num_vect;
+        for (j = 0; j < num_vect && (j + num_vect * i < block_size * num_blocks); j++)
+            tab[i * num_vect + j] = i * num_vect + (j + shift) % num_vect;
     }
 }
 
@@ -969,31 +974,32 @@ static void permutate_in_line(int16_t *tab, int num_vect, int num_blocks,
 static void transpose_perm(int16_t *out, int16_t *in, int num_vect,
                            const uint8_t line_len[2], int length_div)
 {
-    int i,j;
-    int cont= 0;
+    int i, j;
+    int cont = 0;
+
     for (i = 0; i < num_vect; i++)
         for (j = 0; j < line_len[i >= length_div]; j++)
-            out[cont++] = in[j*num_vect + i];
+            out[cont++] = in[j * num_vect + i];
 }
 
 static void linear_perm(int16_t *out, int16_t *in, int n_blocks, int size)
 {
-    int block_size = size/n_blocks;
+    int block_size = size / n_blocks;
     int i;
 
     for (i = 0; i < size; i++)
         out[i] = block_size * (in[i] % n_blocks) + in[i] / n_blocks;
 }
 
-static av_cold void construct_perm_table(TwinContext *tctx,enum FrameType ftype)
+static av_cold void construct_perm_table(TwinContext *tctx,
+                                         enum FrameType ftype)
 {
-    int block_size;
+    int block_size, size;
     const ModeTab *mtab = tctx->mtab;
-    int size;
-    int16_t *tmp_perm = (int16_t *) tctx->tmp_buf;
+    int16_t *tmp_perm = (int16_t *)tctx->tmp_buf;
 
     if (ftype == FT_PPC) {
-        size  = tctx->avctx->channels;
+        size       = tctx->avctx->channels;
         block_size = mtab->ppc_shape_len;
     } else {
         size       = tctx->avctx->channels * mtab->fmode[ftype].sub;
@@ -1008,71 +1014,71 @@ static av_cold void construct_perm_table(TwinContext *tctx,enum FrameType ftype)
                    tctx->length[ftype], tctx->length_change[ftype]);
 
     linear_perm(tctx->permut[ftype], tctx->permut[ftype], size,
-                size*block_size);
+                size * block_size);
 }
 
 static av_cold void init_bitstream_params(TwinContext *tctx)
 {
     const ModeTab *mtab = tctx->mtab;
-    int n_ch = tctx->avctx->channels;
-    int total_fr_bits = tctx->avctx->bit_rate*mtab->size/
-                             tctx->avctx->sample_rate;
+    int n_ch            = tctx->avctx->channels;
+    int total_fr_bits   = tctx->avctx->bit_rate * mtab->size /
+                          tctx->avctx->sample_rate;
 
-    int lsp_bits_per_block = n_ch*(mtab->lsp_bit0 + mtab->lsp_bit1 +
-                                   mtab->lsp_split*mtab->lsp_bit2);
+    int lsp_bits_per_block = n_ch * (mtab->lsp_bit0 + mtab->lsp_bit1 +
+                                     mtab->lsp_split * mtab->lsp_bit2);
 
-    int ppc_bits = n_ch*(mtab->pgain_bit + mtab->ppc_shape_bit +
-                         mtab->ppc_period_bit);
+    int ppc_bits = n_ch * (mtab->pgain_bit + mtab->ppc_shape_bit +
+                           mtab->ppc_period_bit);
 
-    int bsize_no_main_cb[3];
-    int bse_bits[3];
-    int i;
+    int bsize_no_main_cb[3], bse_bits[3], i;
     enum FrameType frametype;
 
     for (i = 0; i < 3; i++)
         // +1 for history usage switch
         bse_bits[i] = n_ch *
-            (mtab->fmode[i].bark_n_coef * mtab->fmode[i].bark_n_bit + 1);
+                      (mtab->fmode[i].bark_n_coef *
+                       mtab->fmode[i].bark_n_bit + 1);
 
     bsize_no_main_cb[2] = bse_bits[2] + lsp_bits_per_block + ppc_bits +
-                          WINDOW_TYPE_BITS + n_ch*GAIN_BITS;
+                          WINDOW_TYPE_BITS + n_ch * GAIN_BITS;
 
     for (i = 0; i < 2; i++)
         bsize_no_main_cb[i] =
-            lsp_bits_per_block + n_ch*GAIN_BITS + WINDOW_TYPE_BITS +
-            mtab->fmode[i].sub*(bse_bits[i] + n_ch*SUB_GAIN_BITS);
+            lsp_bits_per_block + n_ch * GAIN_BITS + WINDOW_TYPE_BITS +
+            mtab->fmode[i].sub * (bse_bits[i] + n_ch * SUB_GAIN_BITS);
 
     // The remaining bits are all used for the main spectrum coefficients
     for (i = 0; i < 4; i++) {
-        int bit_size;
-        int vect_size;
+        int bit_size, vect_size;
         int rounded_up, rounded_down, num_rounded_down, num_rounded_up;
         if (i == 3) {
             bit_size  = n_ch * mtab->ppc_shape_bit;
             vect_size = n_ch * mtab->ppc_shape_len;
         } else {
-            bit_size = total_fr_bits - bsize_no_main_cb[i];
+            bit_size  = total_fr_bits - bsize_no_main_cb[i];
             vect_size = n_ch * mtab->size;
         }
 
         tctx->n_div[i] = (bit_size + 13) / 14;
 
-        rounded_up   = (bit_size + tctx->n_div[i] - 1)/tctx->n_div[i];
-        rounded_down = (bit_size           )/tctx->n_div[i];
-        num_rounded_down = rounded_up * tctx->n_div[i] - bit_size;
-        num_rounded_up = tctx->n_div[i] - num_rounded_down;
-        tctx->bits_main_spec[0][i][0] = (rounded_up   + 1)/2;
-        tctx->bits_main_spec[1][i][0] = (rounded_up      )/2;
-        tctx->bits_main_spec[0][i][1] = (rounded_down + 1)/2;
-        tctx->bits_main_spec[1][i][1] = (rounded_down    )/2;
+        rounded_up                     = (bit_size + tctx->n_div[i] - 1) /
+                                         tctx->n_div[i];
+        rounded_down                   = (bit_size) / tctx->n_div[i];
+        num_rounded_down               = rounded_up * tctx->n_div[i] - bit_size;
+        num_rounded_up                 = tctx->n_div[i] - num_rounded_down;
+        tctx->bits_main_spec[0][i][0]  = (rounded_up + 1)   / 2;
+        tctx->bits_main_spec[1][i][0]  =  rounded_up        / 2;
+        tctx->bits_main_spec[0][i][1]  = (rounded_down + 1) / 2;
+        tctx->bits_main_spec[1][i][1]  =  rounded_down      / 2;
         tctx->bits_main_spec_change[i] = num_rounded_up;
 
-        rounded_up   = (vect_size + tctx->n_div[i] - 1)/tctx->n_div[i];
-        rounded_down = (vect_size                     )/tctx->n_div[i];
-        num_rounded_down = rounded_up * tctx->n_div[i] - vect_size;
-        num_rounded_up = tctx->n_div[i] - num_rounded_down;
-        tctx->length[i][0] = rounded_up;
-        tctx->length[i][1] = rounded_down;
+        rounded_up             = (vect_size + tctx->n_div[i] - 1) /
+                                 tctx->n_div[i];
+        rounded_down           = (vect_size) / tctx->n_div[i];
+        num_rounded_down       = rounded_up * tctx->n_div[i] - vect_size;
+        num_rounded_up         = tctx->n_div[i] - num_rounded_down;
+        tctx->length[i][0]     = rounded_up;
+        tctx->length[i][1]     = rounded_down;
         tctx->length_change[i] = num_rounded_up;
     }
 
@@ -1090,7 +1096,6 @@ static av_cold int twin_decode_close(AVCodecContext *avctx)
         av_free(tctx->cos_tabs[i]);
     }
 
-
     av_free(tctx->curr_frame);
     av_free(tctx->spectrum);
     av_free(tctx->prev_frame);
@@ -1101,9 +1106,8 @@ static av_cold int twin_decode_close(AVCodecContext *avctx)
 
 static av_cold int twin_decode_init(AVCodecContext *avctx)
 {
-    int ret;
+    int ret, isampf, ibps;
     TwinContext *tctx = avctx->priv_data;
-    int isampf, ibps;
 
     tctx->avctx       = avctx;
     avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
@@ -1112,7 +1116,7 @@ static av_cold int twin_decode_init(AVCodecContext *avctx)
         av_log(avctx, AV_LOG_ERROR, "Missing or incomplete extradata\n");
         return AVERROR_INVALIDDATA;
     }
-    avctx->channels = AV_RB32(avctx->extradata    ) + 1;
+    avctx->channels = AV_RB32(avctx->extradata)     + 1;
     avctx->bit_rate = AV_RB32(avctx->extradata + 4) * 1000;
     isampf          = AV_RB32(avctx->extradata + 8);
 
@@ -1121,10 +1125,18 @@ static av_cold int twin_decode_init(AVCodecContext *avctx)
         return AVERROR_INVALIDDATA;
     }
     switch (isampf) {
-    case 44: avctx->sample_rate = 44100;         break;
-    case 22: avctx->sample_rate = 22050;         break;
-    case 11: avctx->sample_rate = 11025;         break;
-    default: avctx->sample_rate = isampf * 1000; break;
+    case 44:
+        avctx->sample_rate = 44100;
+        break;
+    case 22:
+        avctx->sample_rate = 22050;
+        break;
+    case 11:
+        avctx->sample_rate = 11025;
+        break;
+    default:
+        avctx->sample_rate = isampf * 1000;
+        break;
     }
 
     if (avctx->channels <= 0 || avctx->channels > CHANNELS_MAX) {
@@ -1132,8 +1144,8 @@ static av_cold int twin_decode_init(AVCodecContext *avctx)
                avctx->channels);
         return -1;
     }
-    avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO :
-                                                   AV_CH_LAYOUT_STEREO;
+    avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO
+                                                 : AV_CH_LAYOUT_STEREO;
 
     ibps = avctx->bit_rate / (1000 * avctx->channels);
 
@@ -1142,18 +1154,38 @@ static av_cold int twin_decode_init(AVCodecContext *avctx)
         return AVERROR_INVALIDDATA;
     }
 
-    switch ((isampf << 8) +  ibps) {
-    case (8 <<8) +  8: tctx->mtab = &mode_08_08; break;
-    case (11<<8) +  8: tctx->mtab = &mode_11_08; break;
-    case (11<<8) + 10: tctx->mtab = &mode_11_10; break;
-    case (16<<8) + 16: tctx->mtab = &mode_16_16; break;
-    case (22<<8) + 20: tctx->mtab = &mode_22_20; break;
-    case (22<<8) + 24: tctx->mtab = &mode_22_24; break;
-    case (22<<8) + 32: tctx->mtab = &mode_22_32; break;
-    case (44<<8) + 40: tctx->mtab = &mode_44_40; break;
-    case (44<<8) + 48: tctx->mtab = &mode_44_48; break;
+    switch ((isampf << 8) + ibps) {
+    case (8 << 8) + 8:
+        tctx->mtab = &mode_08_08;
+        break;
+    case (11 << 8) + 8:
+        tctx->mtab = &mode_11_08;
+        break;
+    case (11 << 8) + 10:
+        tctx->mtab = &mode_11_10;
+        break;
+    case (16 << 8) + 16:
+        tctx->mtab = &mode_16_16;
+        break;
+    case (22 << 8) + 20:
+        tctx->mtab = &mode_22_20;
+        break;
+    case (22 << 8) + 24:
+        tctx->mtab = &mode_22_24;
+        break;
+    case (22 << 8) + 32:
+        tctx->mtab = &mode_22_32;
+        break;
+    case (44 << 8) + 40:
+        tctx->mtab = &mode_44_40;
+        break;
+    case (44 << 8) + 48:
+        tctx->mtab = &mode_44_48;
+        break;
     default:
-        av_log(avctx, AV_LOG_ERROR, "This version does not support %d kHz - %d kbit/s/ch mode.\n", isampf, isampf);
+        av_log(avctx, AV_LOG_ERROR,
+               "This version does not support %d kHz - %d kbit/s/ch mode.\n",
+               isampf, isampf);
         return -1;
     }