truemotion2: cosmetics, reformat

libavcodec/truemotion2.c

@@ -31,14 +31,31 @@
 
 #define TM2_ESCAPE 0x80000000
 #define TM2_DELTAS 64
+
 /* Huffman-coded streams of different types of blocks */
-enum TM2_STREAMS{ TM2_C_HI = 0, TM2_C_LO, TM2_L_HI, TM2_L_LO,
-     TM2_UPD, TM2_MOT, TM2_TYPE, TM2_NUM_STREAMS};
+enum TM2_STREAMS {
+    TM2_C_HI = 0,
+    TM2_C_LO,
+    TM2_L_HI,
+    TM2_L_LO,
+    TM2_UPD,
+    TM2_MOT,
+    TM2_TYPE,
+    TM2_NUM_STREAMS
+};
+
 /* Block types */
-enum TM2_BLOCKS{ TM2_HI_RES = 0, TM2_MED_RES, TM2_LOW_RES, TM2_NULL_RES,
-                 TM2_UPDATE, TM2_STILL, TM2_MOTION};
+enum TM2_BLOCKS {
+    TM2_HI_RES = 0,
+    TM2_MED_RES,
+    TM2_LOW_RES,
+    TM2_NULL_RES,
+    TM2_UPDATE,
+    TM2_STILL,
+    TM2_MOTION
+};
 
-typedef struct TM2Context{
+typedef struct TM2Context {
     AVCodecContext *avctx;
     AVFrame pic;
 
@@ -66,7 +83,7 @@ typedef struct TM2Context{
 /**
 * Huffman codes for each of streams
 */
-typedef struct TM2Codes{
+typedef struct TM2Codes {
     VLC vlc; ///< table for Libav bitstream reader
     int bits;
     int *recode; ///< table for converting from code indexes to values
@@ -76,7 +93,7 @@ typedef struct TM2Codes{
 /**
 * structure for gathering Huffman codes information
 */
-typedef struct TM2Huff{
+typedef struct TM2Huff {
     int val_bits; ///< length of literal
     int max_bits; ///< maximum length of code
     int min_bits; ///< minimum length of code
@@ -91,16 +108,17 @@ typedef struct TM2Huff{
 static int tm2_read_tree(TM2Context *ctx, uint32_t prefix, int length, TM2Huff *huff)
 {
     int ret;
-    if(length > huff->max_bits) {
-        av_log(ctx->avctx, AV_LOG_ERROR, "Tree exceeded its given depth (%i)\n", huff->max_bits);
+    if (length > huff->max_bits) {
+        av_log(ctx->avctx, AV_LOG_ERROR, "Tree exceeded its given depth (%i)\n",
+               huff->max_bits);
         return AVERROR_INVALIDDATA;
     }
 
-    if(!get_bits1(&ctx->gb)) { /* literal */
+    if (!get_bits1(&ctx->gb)) { /* literal */
         if (length == 0) {
             length = 1;
         }
-        if(huff->num >= huff->max_num) {
+        if (huff->num >= huff->max_num) {
             av_log(ctx->avctx, AV_LOG_DEBUG, "Too many literals\n");
             return AVERROR_INVALIDDATA;
         }
@@ -126,29 +144,30 @@ static int tm2_build_huff_table(TM2Context *ctx, TM2Codes *code)
     huff.val_bits = get_bits(&ctx->gb, 5);
     huff.max_bits = get_bits(&ctx->gb, 5);
     huff.min_bits = get_bits(&ctx->gb, 5);
-    huff.nodes = get_bits_long(&ctx->gb, 17);
-    huff.num = 0;
+    huff.nodes    = get_bits_long(&ctx->gb, 17);
+    huff.num      = 0;
 
     /* check for correct codes parameters */
-    if((huff.val_bits < 1) || (huff.val_bits > 32) ||
-       (huff.max_bits < 0) || (huff.max_bits > 25)) {
-        av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect tree parameters - literal length: %i, max code length: %i\n",
-               huff.val_bits, huff.max_bits);
+    if ((huff.val_bits < 1) || (huff.val_bits > 32) ||
+        (huff.max_bits < 0) || (huff.max_bits > 25)) {
+        av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect tree parameters - literal "
+               "length: %i, max code length: %i\n", huff.val_bits, huff.max_bits);
         return AVERROR_INVALIDDATA;
     }
-    if((huff.nodes <= 0) || (huff.nodes > 0x10000)) {
-        av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect number of Huffman tree nodes: %i\n", huff.nodes);
+    if ((huff.nodes <= 0) || (huff.nodes > 0x10000)) {
+        av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect number of Huffman tree "
+               "nodes: %i\n", huff.nodes);
         return AVERROR_INVALIDDATA;
     }
     /* one-node tree */
-    if(huff.max_bits == 0)
+    if (huff.max_bits == 0)
         huff.max_bits = 1;
 
     /* allocate space for codes - it is exactly ceil(nodes / 2) entries */
     huff.max_num = (huff.nodes + 1) >> 1;
-    huff.nums = av_mallocz(huff.max_num * sizeof(int));
-    huff.bits = av_mallocz(huff.max_num * sizeof(uint32_t));
-    huff.lens = av_mallocz(huff.max_num * sizeof(int));
+    huff.nums    = av_mallocz(huff.max_num * sizeof(int));
+    huff.bits    = av_mallocz(huff.max_num * sizeof(uint32_t));
+    huff.lens    = av_mallocz(huff.max_num * sizeof(int));
 
     res = tm2_read_tree(ctx, 0, 0, &huff);
 
@@ -159,19 +178,19 @@ static int tm2_build_huff_table(TM2Context *ctx, TM2Codes *code)
     }
 
     /* convert codes to vlc_table */
-    if(res >= 0) {
+    if (res >= 0) {
         int i;
 
         res = init_vlc(&code->vlc, huff.max_bits, huff.max_num,
-                    huff.lens, sizeof(int), sizeof(int),
-                    huff.bits, sizeof(uint32_t), sizeof(uint32_t), 0);
-        if(res < 0)
+                       huff.lens, sizeof(int), sizeof(int),
+                       huff.bits, sizeof(uint32_t), sizeof(uint32_t), 0);
+        if (res < 0)
             av_log(ctx->avctx, AV_LOG_ERROR, "Cannot build VLC table\n");
         else {
             code->bits = huff.max_bits;
             code->length = huff.max_num;
             code->recode = av_malloc(code->length * sizeof(int));
-            for(i = 0; i < code->length; i++)
+            for (i = 0; i < code->length; i++)
                 code->recode[i] = huff.nums[i];
         }
     }
@@ -186,7 +205,7 @@ static int tm2_build_huff_table(TM2Context *ctx, TM2Codes *code)
 static void tm2_free_codes(TM2Codes *code)
 {
     av_free(code->recode);
-    if(code->vlc.table)
+    if (code->vlc.table)
         ff_free_vlc(&code->vlc);
 }
 
@@ -216,26 +235,27 @@ static inline int tm2_read_header(TM2Context *ctx, const uint8_t *buf)
     }
 }
 
-static int tm2_read_deltas(TM2Context *ctx, int stream_id) {
+static int tm2_read_deltas(TM2Context *ctx, int stream_id)
+{
     int d, mb;
     int i, v;
 
-    d = get_bits(&ctx->gb, 9);
+    d  = get_bits(&ctx->gb, 9);
     mb = get_bits(&ctx->gb, 5);
 
-    if((d < 1) || (d > TM2_DELTAS) || (mb < 1) || (mb > 32)) {
+    if ((d < 1) || (d > TM2_DELTAS) || (mb < 1) || (mb > 32)) {
         av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect delta table: %i deltas x %i bits\n", d, mb);
         return AVERROR_INVALIDDATA;
     }
 
-    for(i = 0; i < d; i++) {
+    for (i = 0; i < d; i++) {
         v = get_bits_long(&ctx->gb, mb);
-        if(v & (1 << (mb - 1)))
+        if (v & (1 << (mb - 1)))
             ctx->deltas[stream_id][i] = v - (1 << mb);
         else
             ctx->deltas[stream_id][i] = v;
     }
-    for(; i < TM2_DELTAS; i++)
+    for (; i < TM2_DELTAS; i++)
         ctx->deltas[stream_id][i] = 0;
 
     return 0;
@@ -254,7 +274,7 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
     len  = bytestream2_get_be32(&gb);
     skip = len * 4 + 4;
 
-    if(len == 0)
+    if (len == 0)
         return 4;
 
     if (len >= INT_MAX/4-1 || len < 0 || len > buf_size) {
@@ -263,12 +283,12 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
     }
 
     toks = bytestream2_get_be32(&gb);
-    if(toks & 1) {
+    if (toks & 1) {
         len = bytestream2_get_be32(&gb);
-        if(len == TM2_ESCAPE) {
+        if (len == TM2_ESCAPE) {
             len = bytestream2_get_be32(&gb);
         }
-        if(len > 0) {
+        if (len > 0) {
             pos = bytestream2_tell(&gb);
             if (skip <= pos)
                 return AVERROR_INVALIDDATA;
@@ -280,7 +300,7 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
     }
     /* skip unused fields */
     len = bytestream2_get_be32(&gb);
-    if(len == TM2_ESCAPE) { /* some unknown length - could be escaped too */
+    if (len == TM2_ESCAPE) { /* some unknown length - could be escaped too */
         bytestream2_skip(&gb, 8); /* unused by decoder */
     } else {
         bytestream2_skip(&gb, 4); /* unused by decoder */
@@ -296,20 +316,20 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
 
     toks >>= 1;
     /* check if we have sane number of tokens */
-    if((toks < 0) || (toks > 0xFFFFFF)){
+    if ((toks < 0) || (toks > 0xFFFFFF)) {
         av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect number of tokens: %i\n", toks);
         tm2_free_codes(&codes);
         return AVERROR_INVALIDDATA;
     }
-    ctx->tokens[stream_id] = av_realloc(ctx->tokens[stream_id], toks * sizeof(int));
+    ctx->tokens[stream_id]   = av_realloc(ctx->tokens[stream_id], toks * sizeof(int));
     ctx->tok_lens[stream_id] = toks;
     len = bytestream2_get_be32(&gb);
-    if(len > 0) {
+    if (len > 0) {
         pos = bytestream2_tell(&gb);
         if (skip <= pos)
             return AVERROR_INVALIDDATA;
         init_get_bits(&ctx->gb, buf + pos, (skip - pos) * 8);
-        for(i = 0; i < toks; i++) {
+        for (i = 0; i < toks; i++) {
             if (get_bits_left(&ctx->gb) <= 0) {
                 av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect number of tokens: %i\n", toks);
                 return AVERROR_INVALIDDATA;
@@ -322,7 +342,7 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
             }
         }
     } else {
-        for(i = 0; i < toks; i++) {
+        for (i = 0; i < toks; i++) {
             ctx->tokens[stream_id][i] = codes.recode[0];
             if (stream_id <= TM2_MOT && ctx->tokens[stream_id][i] >= TM2_DELTAS) {
                 av_log(ctx->avctx, AV_LOG_ERROR, "Invalid delta token index %d for type %d, n=%d\n",
@@ -336,12 +356,13 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
     return skip;
 }
 
-static inline int GET_TOK(TM2Context *ctx,int type) {
-    if(ctx->tok_ptrs[type] >= ctx->tok_lens[type]) {
+static inline int GET_TOK(TM2Context *ctx,int type)
+{
+    if (ctx->tok_ptrs[type] >= ctx->tok_lens[type]) {
         av_log(ctx->avctx, AV_LOG_ERROR, "Read token from stream %i out of bounds (%i>=%i)\n", type, ctx->tok_ptrs[type], ctx->tok_lens[type]);
         return 0;
     }
-    if(type <= TM2_MOT)
+    if (type <= TM2_MOT)
         return ctx->deltas[type][ctx->tokens[type][ctx->tok_ptrs[type]++]];
     return ctx->tokens[type][ctx->tok_ptrs[type]++];
 }
@@ -388,15 +409,15 @@ static inline void tm2_apply_deltas(TM2Context *ctx, int* Y, int stride, int *de
     int ct, d;
     int i, j;
 
-    for(j = 0; j < 4; j++){
+    for (j = 0; j < 4; j++){
         ct = ctx->D[j];
-        for(i = 0; i < 4; i++){
-            d = deltas[i + j * 4];
-            ct += d;
+        for (i = 0; i < 4; i++){
+            d        = deltas[i + j * 4];
+            ct      += d;
             last[i] += ct;
-            Y[i] = av_clip_uint8(last[i]);
+            Y[i]     = av_clip_uint8(last[i]);
         }
-        Y += stride;
+        Y        += stride;
         ctx->D[j] = ct;
     }
 }
@@ -404,11 +425,11 @@ static inline void tm2_apply_deltas(TM2Context *ctx, int* Y, int stride, int *de
 static inline void tm2_high_chroma(int *data, int stride, int *last, int *CD, int *deltas)
 {
     int i, j;
-    for(j = 0; j < 2; j++){
-        for(i = 0; i < 2; i++){
-            CD[j] += deltas[i + j * 2];
+    for (j = 0; j < 2; j++) {
+        for (i = 0; i < 2; i++)  {
+            CD[j]   += deltas[i + j * 2];
             last[i] += CD[j];
-            data[i] = last[i];
+            data[i]  = last[i];
         }
         data += stride;
     }
@@ -420,14 +441,14 @@ static inline void tm2_low_chroma(int *data, int stride, int *clast, int *CD, in
     int l;
     int prev;
 
-    if(bx > 0)
+    if (bx > 0)
         prev = clast[-3];
     else
         prev = 0;
-    t = (CD[0] + CD[1]) >> 1;
-    l = (prev - CD[0] - CD[1] + clast[1]) >> 1;
-    CD[1] = CD[0] + CD[1] - t;
-    CD[0] = t;
+    t        = (CD[0] + CD[1]) >> 1;
+    l        = (prev - CD[0] - CD[1] + clast[1]) >> 1;
+    CD[1]    = CD[0] + CD[1] - t;
+    CD[0]    = t;
     clast[0] = l;
 
     tm2_high_chroma(data, stride, clast, CD, deltas);
@@ -440,15 +461,15 @@ static inline void tm2_hi_res_block(TM2Context *ctx, AVFrame *pic, int bx, int b
     TM2_INIT_POINTERS();
 
     /* hi-res chroma */
-    for(i = 0; i < 4; i++) {
-        deltas[i] = GET_TOK(ctx, TM2_C_HI);
+    for (i = 0; i < 4; i++) {
+        deltas[i]     = GET_TOK(ctx, TM2_C_HI);
         deltas[i + 4] = GET_TOK(ctx, TM2_C_HI);
     }
-    tm2_high_chroma(U, Ustride, clast, ctx->CD, deltas);
+    tm2_high_chroma(U, Ustride, clast,     ctx->CD,     deltas);
     tm2_high_chroma(V, Vstride, clast + 2, ctx->CD + 2, deltas + 4);
 
     /* hi-res luma */
-    for(i = 0; i < 16; i++)
+    for (i = 0; i < 16; i++)
         deltas[i] = GET_TOK(ctx, TM2_L_HI);
 
     tm2_apply_deltas(ctx, Y, Ystride, deltas, last);
@@ -470,7 +491,7 @@ static inline void tm2_med_res_block(TM2Context *ctx, AVFrame *pic, int bx, int
     tm2_low_chroma(V, Vstride, clast + 2, ctx->CD + 2, deltas, bx);
 
     /* hi-res luma */
-    for(i = 0; i < 16; i++)
+    for (i = 0; i < 16; i++)
         deltas[i] = GET_TOK(ctx, TM2_L_HI);
 
     tm2_apply_deltas(ctx, Y, Ystride, deltas, last);
@@ -493,7 +514,7 @@ static inline void tm2_low_res_block(TM2Context *ctx, AVFrame *pic, int bx, int
     tm2_low_chroma(V, Vstride, clast + 2, ctx->CD + 2, deltas, bx);
 
     /* low-res luma */
-    for(i = 0; i < 16; i++)
+    for (i = 0; i < 16; i++)
         deltas[i] = 0;
 
     deltas[ 0] = GET_TOK(ctx, TM2_L_LO);
@@ -501,7 +522,7 @@ static inline void tm2_low_res_block(TM2Context *ctx, AVFrame *pic, int bx, int
     deltas[ 8] = GET_TOK(ctx, TM2_L_LO);
     deltas[10] = GET_TOK(ctx, TM2_L_LO);
 
-    if(bx > 0)
+    if (bx > 0)
         last[0] = (last[-1] - ctx->D[0] - ctx->D[1] - ctx->D[2] - ctx->D[3] + last[1]) >> 1;
     else
         last[0] = (last[1]  - ctx->D[0] - ctx->D[1] - ctx->D[2] - ctx->D[3])>> 1;
@@ -533,18 +554,18 @@ static inline void tm2_null_res_block(TM2Context *ctx, AVFrame *pic, int bx, int
     tm2_low_chroma(V, Vstride, clast + 2, ctx->CD + 2, deltas, bx);
 
     /* null luma */
-    for(i = 0; i < 16; i++)
+    for (i = 0; i < 16; i++)
         deltas[i] = 0;
 
     ct = ctx->D[0] + ctx->D[1] + ctx->D[2] + ctx->D[3];
 
-    if(bx > 0)
+    if (bx > 0)
         left = last[-1] - ct;
     else
         left = 0;
 
-    right = last[3];
-    diff = right - left;
+    right   = last[3];
+    diff    = right - left;
     last[0] = left + (diff >> 2);
     last[1] = left + (diff >> 1);
     last[2] = right - (diff >> 2);
@@ -553,11 +574,11 @@ static inline void tm2_null_res_block(TM2Context *ctx, AVFrame *pic, int bx, int
         int tp = left;
 
         ctx->D[0] = (tp + (ct >> 2)) - left;
-        left += ctx->D[0];
+        left     += ctx->D[0];
         ctx->D[1] = (tp + (ct >> 1)) - left;
-        left += ctx->D[1];
+        left     += ctx->D[1];
         ctx->D[2] = ((tp + ct) - (ct >> 2)) - left;
-        left += ctx->D[2];
+        left     += ctx->D[2];
         ctx->D[3] = (tp + ct) - left;
     }
     tm2_apply_deltas(ctx, Y, Ystride, deltas, last);
@@ -569,12 +590,12 @@ static inline void tm2_still_block(TM2Context *ctx, AVFrame *pic, int bx, int by
     TM2_INIT_POINTERS_2();
 
     /* update chroma */
-    for(j = 0; j < 2; j++){
-        for(i = 0; i < 2; i++){
+    for (j = 0; j < 2; j++) {
+        for (i = 0; i < 2; i++){
             U[i] = Uo[i];
             V[i] = Vo[i];
         }
-        U += Ustride; V += Vstride;
+        U  += Ustride; V += Vstride;
         Uo += oUstride; Vo += oVstride;
     }
     U -= Ustride * 2;
@@ -588,12 +609,12 @@ static inline void tm2_still_block(TM2Context *ctx, AVFrame *pic, int bx, int by
     ctx->D[2] = Yo[3 + oYstride * 2] - Yo[3 + oYstride];
     ctx->D[3] = Yo[3 + oYstride * 3] - Yo[3 + oYstride * 2];
 
-    for(j = 0; j < 4; j++){
-        for(i = 0; i < 4; i++){
-            Y[i] = Yo[i];
+    for (j = 0; j < 4; j++) {
+        for (i = 0; i < 4; i++) {
+            Y[i]    = Yo[i];
             last[i] = Yo[i];
         }
-        Y += Ystride;
+        Y  += Ystride;
         Yo += oYstride;
     }
 }
@@ -605,13 +626,15 @@ static inline void tm2_update_block(TM2Context *ctx, AVFrame *pic, int bx, int b
     TM2_INIT_POINTERS_2();
 
     /* update chroma */
-    for(j = 0; j < 2; j++){
-        for(i = 0; i < 2; i++){
+    for (j = 0; j < 2; j++) {
+        for (i = 0; i < 2; i++) {
             U[i] = Uo[i] + GET_TOK(ctx, TM2_UPD);
             V[i] = Vo[i] + GET_TOK(ctx, TM2_UPD);
         }
-        U += Ustride; V += Vstride;
-        Uo += oUstride; Vo += oVstride;
+        U  += Ustride;
+        V  += Vstride;
+        Uo += oUstride;
+        Vo += oVstride;
     }
     U -= Ustride * 2;
     V -= Vstride * 2;
@@ -624,14 +647,14 @@ static inline void tm2_update_block(TM2Context *ctx, AVFrame *pic, int bx, int b
     ctx->D[2] = Yo[3 + oYstride * 2] - Yo[3 + oYstride];
     ctx->D[3] = Yo[3 + oYstride * 3] - Yo[3 + oYstride * 2];
 
-    for(j = 0; j < 4; j++){
+    for (j = 0; j < 4; j++) {
         d = last[3];
-        for(i = 0; i < 4; i++){
-            Y[i] = Yo[i] + GET_TOK(ctx, TM2_UPD);
+        for (i = 0; i < 4; i++) {
+            Y[i]    = Yo[i] + GET_TOK(ctx, TM2_UPD);
             last[i] = Y[i];
         }
         ctx->D[j] = last[3] - d;
-        Y += Ystride;
+        Y  += Ystride;
         Yo += oYstride;
     }
 }
@@ -652,13 +675,15 @@ static inline void tm2_motion_block(TM2Context *ctx, AVFrame *pic, int bx, int b
     Vo += (my >> 1) * oVstride + (mx >> 1);
 
     /* copy chroma */
-    for(j = 0; j < 2; j++){
-        for(i = 0; i < 2; i++){
+    for (j = 0; j < 2; j++) {
+        for (i = 0; i < 2; i++) {
             U[i] = Uo[i];
             V[i] = Vo[i];
         }
-        U += Ustride; V += Vstride;
-        Uo += oUstride; Vo += oVstride;
+        U  += Ustride;
+        V  += Vstride;
+        Uo += oUstride;
+        Vo += oVstride;
     }
     U -= Ustride * 2;
     V -= Vstride * 2;
@@ -666,11 +691,11 @@ static inline void tm2_motion_block(TM2Context *ctx, AVFrame *pic, int bx, int b
     TM2_RECALC_BLOCK(V, Vstride, (clast + 2), (ctx->CD + 2));
 
     /* copy luma */
-    for(j = 0; j < 4; j++){
-        for(i = 0; i < 4; i++){
+    for (j = 0; j < 4; j++) {
+        for (i = 0; i < 4; i++) {
             Y[i] = Yo[i];
         }
-        Y += Ystride;
+        Y  += Ystride;
         Yo += oYstride;
     }
     /* calculate deltas */
@@ -679,7 +704,7 @@ static inline void tm2_motion_block(TM2Context *ctx, AVFrame *pic, int bx, int b
     ctx->D[1] = Y[3 + Ystride] - Y[3];
     ctx->D[2] = Y[3 + Ystride * 2] - Y[3 + Ystride];
     ctx->D[3] = Y[3 + Ystride * 3] - Y[3 + Ystride * 2];
-    for(i = 0; i < 4; i++)
+    for (i = 0; i < 4; i++)
         last[i] = Y[i + Ystride * 3];
 }
 
@@ -692,10 +717,10 @@ static int tm2_decode_blocks(TM2Context *ctx, AVFrame *p)
     int *Y, *U, *V;
     uint8_t *dst;
 
-    for(i = 0; i < TM2_NUM_STREAMS; i++)
+    for (i = 0; i < TM2_NUM_STREAMS; i++)
         ctx->tok_ptrs[i] = 0;
 
-    if (ctx->tok_lens[TM2_TYPE]<bw*bh){
+    if (ctx->tok_lens[TM2_TYPE]<bw*bh) {
         av_log(ctx->avctx,AV_LOG_ERROR,"Got %i tokens for %i blocks\n",ctx->tok_lens[TM2_TYPE],bw*bh);
         return AVERROR_INVALIDDATA;
     }
@@ -703,10 +728,10 @@ static int tm2_decode_blocks(TM2Context *ctx, AVFrame *p)
     memset(ctx->last, 0, 4 * bw * sizeof(int));
     memset(ctx->clast, 0, 4 * bw * sizeof(int));
 
-    for(j = 0; j < bh; j++) {
+    for (j = 0; j < bh; j++) {
         memset(ctx->D, 0, 4 * sizeof(int));
         memset(ctx->CD, 0, 4 * sizeof(int));
-        for(i = 0; i < bw; i++) {
+        for (i = 0; i < bw; i++) {
             type = GET_TOK(ctx, TM2_TYPE);
             switch(type) {
             case TM2_HI_RES:
@@ -744,8 +769,8 @@ static int tm2_decode_blocks(TM2Context *ctx, AVFrame *p)
     U = (ctx->cur?ctx->U2:ctx->U1);
     V = (ctx->cur?ctx->V2:ctx->V1);
     dst = p->data[0];
-    for(j = 0; j < h; j++){
-        for(i = 0; i < w; i++){
+    for (j = 0; j < h; j++) {
+        for (i = 0; i < w; i++) {
             int y = Y[i], u = U[i >> 1], v = V[i >> 1];
             dst[3*i+0] = av_clip_uint8(y + v);
             dst[3*i+1] = av_clip_uint8(y);
@@ -809,15 +834,16 @@ static int decode_frame(AVCodecContext *avctx,
                         void *data, int *got_frame,
                         AVPacket *avpkt)
 {
-    const uint8_t *buf = avpkt->data;
-    int buf_size = avpkt->size & ~3;
     TM2Context * const l = avctx->priv_data;
-    AVFrame * const p = &l->pic;
-    int i, offset = TM2_HEADER_SIZE, t, ret;
+    const uint8_t *buf   = avpkt->data;
+    int buf_size         = avpkt->size & ~3;
+    AVFrame * const p    = &l->pic;
+    int offset           = TM2_HEADER_SIZE;
+    int i, t, ret;
     uint8_t *swbuf;
 
     swbuf = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
-    if(!swbuf){
+    if (!swbuf) {
         av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
         return AVERROR(ENOMEM);
     }
@@ -836,21 +862,21 @@ static int decode_frame(AVCodecContext *avctx,
         return ret;
     }
 
-    for(i = 0; i < TM2_NUM_STREAMS; i++){
+    for (i = 0; i < TM2_NUM_STREAMS; i++) {
         if (offset >= buf_size) {
             av_free(swbuf);
             return AVERROR_INVALIDDATA;
         }
         t = tm2_read_stream(l, swbuf + offset, tm2_stream_order[i],
                             buf_size - offset);
-        if(t < 0){
+        if (t < 0) {
             av_free(swbuf);
             return t;
         }
         offset += t;
     }
     p->key_frame = tm2_decode_blocks(l, p);
-    if(p->key_frame)
+    if (p->key_frame)
         p->pict_type = AV_PICTURE_TYPE_I;
     else
         p->pict_type = AV_PICTURE_TYPE_P;
@@ -863,17 +889,18 @@ static int decode_frame(AVCodecContext *avctx,
     return buf_size;
 }
 
-static av_cold int decode_init(AVCodecContext *avctx){
+static av_cold int decode_init(AVCodecContext *avctx)
+{
     TM2Context * const l = avctx->priv_data;
     int i, w = avctx->width, h = avctx->height;
 
-    if((avctx->width & 3) || (avctx->height & 3)){
+    if ((avctx->width & 3) || (avctx->height & 3)) {
         av_log(avctx, AV_LOG_ERROR, "Width and height must be multiple of 4\n");
         return AVERROR(EINVAL);
     }
 
-    l->avctx = avctx;
-    l->pic.data[0]=NULL;
+    l->avctx       = avctx;
+    l->pic.data[0] = NULL;
     avctx->pix_fmt = AV_PIX_FMT_BGR24;
 
     ff_dsputil_init(&l->dsp, avctx);
@@ -881,7 +908,7 @@ static av_cold int decode_init(AVCodecContext *avctx){
     l->last  = av_malloc(4 * sizeof(*l->last)  * (w >> 2));
     l->clast = av_malloc(4 * sizeof(*l->clast) * (w >> 2));
 
-    for(i = 0; i < TM2_NUM_STREAMS; i++) {
+    for (i = 0; i < TM2_NUM_STREAMS; i++) {
         l->tokens[i] = NULL;
         l->tok_lens[i] = 0;
     }
@@ -922,16 +949,17 @@ static av_cold int decode_init(AVCodecContext *avctx){
     return 0;
 }
 
-static av_cold int decode_end(AVCodecContext *avctx){
+static av_cold int decode_end(AVCodecContext *avctx)
+{
     TM2Context * const l = avctx->priv_data;
     AVFrame *pic = &l->pic;
     int i;
 
     av_free(l->last);
     av_free(l->clast);
-    for(i = 0; i < TM2_NUM_STREAMS; i++)
+    for (i = 0; i < TM2_NUM_STREAMS; i++)
         av_free(l->tokens[i]);
-    if(l->Y1){
+    if (l->Y1) {
         av_free(l->Y1_base);
         av_free(l->U1_base);
         av_free(l->V1_base);