eatgv: cosmetics, reformat

1 files changed, 81 insertions, 76 deletions

diff --git a/libavcodec/eatgv.c b/libavcodec/eatgv.c
index 7a93609968..a40ea839d6 100644
--- a/libavcodec/eatgv.c
+++ b/libavcodec/eatgv.c
@@ -50,11 +50,12 @@ typedef struct TgvContext {
     int num_blocks_packed; ///< current length of block_codebook
 } TgvContext;
 
-static av_cold int tgv_decode_init(AVCodecContext *avctx){
+static av_cold int tgv_decode_init(AVCodecContext *avctx)
+{
     TgvContext *s = avctx->priv_data;
-    s->avctx = avctx;
+    s->avctx         = avctx;
     avctx->time_base = (AVRational){1, 15};
-    avctx->pix_fmt = AV_PIX_FMT_PAL8;
+    avctx->pix_fmt   = AV_PIX_FMT_PAL8;
     return 0;
 }
 
@@ -62,7 +63,9 @@ static av_cold int tgv_decode_init(AVCodecContext *avctx){
  * Unpack buffer
  * @return 0 on success, -1 on critical buffer underflow
  */
-static int unpack(const uint8_t *src, const uint8_t *src_end, unsigned char *dst, int width, int height) {
+static int unpack(const uint8_t *src, const uint8_t *src_end,
+                  unsigned char *dst, int width, int height)
+{
     unsigned char *dst_end = dst + width*height;
     int size, size1, size2, offset, run;
     unsigned char *dst_start = dst;
@@ -72,57 +75,57 @@ static int unpack(const uint8_t *src, const uint8_t *src_end, unsigned char *dst
     else
         src += 2;
 
-    if (src+3>src_end)
+    if (src + 3 > src_end)
         return AVERROR_INVALIDDATA;
     size = AV_RB24(src);
     src += 3;
 
-    while(size>0 && src<src_end) {
+    while (size > 0 && src < src_end) {
 
         /* determine size1 and size2 */
         size1 = (src[0] & 3);
-        if ( src[0] & 0x80 ) {  // 1
+        if (src[0] & 0x80) {  // 1
             if (src[0] & 0x40 ) {  // 11
-                if ( src[0] & 0x20 ) {  // 111
-                    if ( src[0] < 0xFC )  // !(111111)
+                if (src[0] & 0x20) {  // 111
+                    if (src[0] < 0xFC)  // !(111111)
                         size1 = (((src[0] & 31) + 1) << 2);
                     src++;
                     size2 = 0;
                 } else {  // 110
                     offset = ((src[0] & 0x10) << 12) + AV_RB16(&src[1]) + 1;
-                    size2 = ((src[0] & 0xC) << 6) + src[3] + 5;
-                    src += 4;
+                    size2  = ((src[0] & 0xC) << 6) + src[3] + 5;
+                    src   += 4;
                 }
             } else {  // 10
-                size1 = ( ( src[1] & 0xC0) >> 6 );
+                size1  = ((src[1] & 0xC0) >> 6);
                 offset = (AV_RB16(&src[1]) & 0x3FFF) + 1;
-                size2 = (src[0] & 0x3F) + 4;
-                src += 3;
+                size2  = (src[0] & 0x3F) + 4;
+                src   += 3;
             }
         } else {  // 0
             offset = ((src[0] & 0x60) << 3) + src[1] + 1;
-            size2 = ((src[0] & 0x1C) >> 2) + 3;
-            src += 2;
+            size2  = ((src[0] & 0x1C) >> 2) + 3;
+            src   += 2;
         }
 
 
         /* fetch strip from src */
-        if (size1>src_end-src)
+        if (size1 > src_end - src)
             break;
 
-        if (size1>0) {
+        if (size1 > 0) {
             size -= size1;
-            run = FFMIN(size1, dst_end-dst);
+            run   = FFMIN(size1, dst_end - dst);
             memcpy(dst, src, run);
             dst += run;
             src += run;
         }
 
-        if (size2>0) {
-            if (dst-dst_start<offset)
+        if (size2 > 0) {
+            if (dst - dst_start < offset)
                 return 0;
             size -= size2;
-            run = FFMIN(size2, dst_end-dst);
+            run   = FFMIN(size2, dst_end - dst);
             av_memcpy_backptr(dst, offset, run);
             dst += run;
         }
@@ -135,7 +138,9 @@ static int unpack(const uint8_t *src, const uint8_t *src_end, unsigned char *dst
  * Decode inter-frame
  * @return 0 on success, -1 on critical buffer underflow
  */
-static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *buf_end){
+static int tgv_decode_inter(TgvContext *s, const uint8_t *buf,
+                            const uint8_t *buf_end)
+{
     int num_mvs;
     int num_blocks_raw;
     int num_blocks_packed;
@@ -145,7 +150,7 @@ static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *b
     int mvbits;
     const unsigned char *blocks_raw;
 
-    if(buf+12>buf_end)
+    if (buf + 12 > buf_end)
         return AVERROR_INVALIDDATA;
 
     num_mvs           = AV_RL16(&buf[0]);
@@ -172,68 +177,68 @@ static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *b
     }
 
     /* read motion vectors */
-    mvbits = (num_mvs*2*10+31) & ~31;
+    mvbits = (num_mvs * 2 * 10 + 31) & ~31;
 
-    if (buf+(mvbits>>3)+16*num_blocks_raw+8*num_blocks_packed>buf_end)
+    if (buf + (mvbits >> 3) + 16 * num_blocks_raw + 8 * num_blocks_packed > buf_end)
         return AVERROR_INVALIDDATA;
 
     init_get_bits(&gb, buf, mvbits);
-    for (i=0; i<num_mvs; i++) {
+    for (i = 0; i < num_mvs; i++) {
         s->mv_codebook[i][0] = get_sbits(&gb, 10);
         s->mv_codebook[i][1] = get_sbits(&gb, 10);
     }
-    buf += mvbits>>3;
+    buf += mvbits >> 3;
 
     /* note ptr to uncompressed blocks */
     blocks_raw = buf;
-    buf += num_blocks_raw*16;
+    buf       += num_blocks_raw * 16;
 
     /* read compressed blocks */
-    init_get_bits(&gb, buf, (buf_end-buf)<<3);
-    for (i=0; i<num_blocks_packed; i++) {
+    init_get_bits(&gb, buf, (buf_end - buf) << 3);
+    for (i = 0; i < num_blocks_packed; i++) {
         int tmp[4];
-        for(j=0; j<4; j++)
+        for (j = 0; j < 4; j++)
             tmp[j] = get_bits(&gb, 8);
-        for(j=0; j<16; j++)
+        for (j = 0; j < 16; j++)
             s->block_codebook[i][15-j] = tmp[get_bits(&gb, 2)];
     }
 
     if (get_bits_left(&gb) < vector_bits *
-        (s->avctx->height/4) * (s->avctx->width/4))
+        (s->avctx->height / 4) * (s->avctx->width / 4))
         return AVERROR_INVALIDDATA;
 
     /* read vectors and build frame */
-    for(y=0; y<s->avctx->height/4; y++)
-    for(x=0; x<s->avctx->width/4; x++) {
-        unsigned int vector = get_bits(&gb, vector_bits);
-        const unsigned char *src;
-        int src_stride;
-
-        if (vector < num_mvs) {
-            int mx = x * 4 + s->mv_codebook[vector][0];
-            int my = y * 4 + s->mv_codebook[vector][1];
-
-            if (   mx < 0 || mx + 4 > s->avctx->width
-                || my < 0 || my + 4 > s->avctx->height)
-                continue;
-
-            src = s->last_frame.data[0] + mx + my * s->last_frame.linesize[0];
-            src_stride = s->last_frame.linesize[0];
-        }else{
-            int offset = vector - num_mvs;
-            if (offset<num_blocks_raw)
-                src = blocks_raw + 16*offset;
-            else if (offset-num_blocks_raw<num_blocks_packed)
-                src = s->block_codebook[offset-num_blocks_raw];
-            else
-                continue;
-            src_stride = 4;
-        }
+    for (y = 0; y < s->avctx->height / 4; y++)
+        for (x = 0; x < s->avctx->width / 4; x++) {
+            unsigned int vector = get_bits(&gb, vector_bits);
+            const unsigned char *src;
+            int src_stride;
+
+            if (vector < num_mvs) {
+                int mx = x * 4 + s->mv_codebook[vector][0];
+                int my = y * 4 + s->mv_codebook[vector][1];
+
+                if (mx < 0 || mx + 4 > s->avctx->width ||
+                    my < 0 || my + 4 > s->avctx->height)
+                    continue;
+
+                src = s->last_frame.data[0] + mx + my * s->last_frame.linesize[0];
+                src_stride = s->last_frame.linesize[0];
+            } else {
+                int offset = vector - num_mvs;
+                if (offset < num_blocks_raw)
+                    src = blocks_raw + 16*offset;
+                else if (offset - num_blocks_raw < num_blocks_packed)
+                    src = s->block_codebook[offset - num_blocks_raw];
+                else
+                    continue;
+                src_stride = 4;
+            }
 
-        for(j=0; j<4; j++)
-        for(i=0; i<4; i++)
-            s->frame.data[0][ (y*4+j)*s->frame.linesize[0] + (x*4+i)  ] =
-               src[j*src_stride + i];
+            for (j = 0; j < 4; j++)
+                for (i = 0; i < 4; i++)
+                    s->frame.data[0][(y * 4 + j) * s->frame.linesize[0] + (x * 4 + i)] =
+                        src[j * src_stride + i];
     }
 
     return 0;
@@ -252,25 +257,25 @@ static int tgv_decode_frame(AVCodecContext *avctx,
                             void *data, int *got_frame,
                             AVPacket *avpkt)
 {
-    const uint8_t *buf = avpkt->data;
-    int buf_size = avpkt->size;
-    TgvContext *s = avctx->priv_data;
+    const uint8_t *buf     = avpkt->data;
+    int buf_size           = avpkt->size;
+    TgvContext *s          = avctx->priv_data;
     const uint8_t *buf_end = buf + buf_size;
     int chunk_type, ret;
 
     chunk_type = AV_RL32(&buf[0]);
-    buf += EA_PREAMBLE_SIZE;
+    buf       += EA_PREAMBLE_SIZE;
 
-    if (chunk_type==kVGT_TAG) {
+    if (chunk_type == kVGT_TAG) {
         int pal_count, i;
-        if(buf+12>buf_end) {
+        if (buf + 12 > buf_end) {
             av_log(avctx, AV_LOG_WARNING, "truncated header\n");
             return AVERROR_INVALIDDATA;
         }
 
         s->width  = AV_RL16(&buf[0]);
         s->height = AV_RL16(&buf[2]);
-        if (s->avctx->width!=s->width || s->avctx->height!=s->height) {
+        if (s->avctx->width != s->width || s->avctx->height != s->height) {
             avcodec_set_dimensions(s->avctx, s->width, s->height);
             cond_release_buffer(&s->frame);
             cond_release_buffer(&s->last_frame);
@@ -278,7 +283,7 @@ static int tgv_decode_frame(AVCodecContext *avctx,
 
         pal_count = AV_RL16(&buf[6]);
         buf += 12;
-        for(i=0; i<pal_count && i<AVPALETTE_COUNT && buf+2<buf_end; i++) {
+        for (i = 0; i < pal_count && i < AVPALETTE_COUNT && buf + 2 < buf_end; i++) {
             s->palette[i] = AV_RB24(buf);
             buf += 3;
         }
@@ -305,21 +310,21 @@ static int tgv_decode_frame(AVCodecContext *avctx,
     }
     memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
 
-    if(chunk_type==kVGT_TAG) {
+    if (chunk_type == kVGT_TAG) {
         s->frame.key_frame = 1;
         s->frame.pict_type = AV_PICTURE_TYPE_I;
-        if (unpack(buf, buf_end, s->frame.data[0], s->avctx->width, s->avctx->height)<0) {
+        if (unpack(buf, buf_end, s->frame.data[0], s->avctx->width, s->avctx->height) < 0) {
             av_log(avctx, AV_LOG_WARNING, "truncated intra frame\n");
             return AVERROR_INVALIDDATA;
         }
-    }else{
+    } else {
         if (!s->last_frame.data[0]) {
             av_log(avctx, AV_LOG_WARNING, "inter frame without corresponding intra frame\n");
             return buf_size;
         }
         s->frame.key_frame = 0;
         s->frame.pict_type = AV_PICTURE_TYPE_P;
-        if (tgv_decode_inter(s, buf, buf_end)<0) {
+        if (tgv_decode_inter(s, buf, buf_end) < 0) {
             av_log(avctx, AV_LOG_WARNING, "truncated inter frame\n");
             return AVERROR_INVALIDDATA;
         }