Fix "mixed declarations and code" warnings.

libavcodec/j2kdec.c

@@ -692,6 +692,8 @@ static int decode_cblk(J2kDecoderContext *s, J2kCodingStyle *codsty, J2kT1Contex
                        int width, int height, int bandpos)
 {
     int passno = cblk->npasses, pass_t = 2, bpno = cblk->nonzerobits - 1, y, clnpass_cnt = 0;
+    int bpass_csty_symbol = J2K_CBLK_BYPASS & codsty->cblk_style;
+    int vert_causal_ctx_csty_symbol = J2K_CBLK_VSC & codsty->cblk_style;
 
     for (y = 0; y < height+2; y++)
         memset(t1->flags[y], 0, (width+2)*sizeof(int));
@@ -703,9 +705,6 @@ static int decode_cblk(J2kDecoderContext *s, J2kCodingStyle *codsty, J2kT1Contex
     cblk->data[cblk->length] = 0xff;
     cblk->data[cblk->length+1] = 0xff;
 
-    int bpass_csty_symbol = J2K_CBLK_BYPASS & codsty->cblk_style;
-    int vert_causal_ctx_csty_symbol = J2K_CBLK_VSC & codsty->cblk_style;
-
     while(passno--){
         switch(pass_t){
             case 0: decode_sigpass(t1, width, height, bpno+1, bandpos,

libavcodec/qtrleenc.c

@@ -231,10 +231,11 @@ static void qtrle_encode_line(QtrleEncContext *s, AVFrame *p, int line, uint8_t
         else if (rlecode > 0) {
             /* bulk copy */
             if (s->avctx->pix_fmt == PIX_FMT_GRAY8) {
+                int j;
                 // QT grayscale colorspace has 0=white and 255=black, we will
                 // ignore the palette that is included in the AVFrame because
                 // PIX_FMT_GRAY8 has defined color mapping
-                for (int j = 0; j < rlecode*s->pixel_size; ++j)
+                for (j = 0; j < rlecode*s->pixel_size; ++j)
                     bytestream_put_byte(buf, *(this_line + i*s->pixel_size + j) ^ 0xff);
             } else {
                 bytestream_put_buffer(buf, this_line + i*s->pixel_size, rlecode*s->pixel_size);
@@ -244,8 +245,9 @@ static void qtrle_encode_line(QtrleEncContext *s, AVFrame *p, int line, uint8_t
         else {
             /* repeat the bits */
             if (s->avctx->pix_fmt == PIX_FMT_GRAY8) {
+                int j;
                 // QT grayscale colorspace has 0=white and 255=black, ...
-                for (int j = 0; j < s->pixel_size; ++j)
+                for (j = 0; j < s->pixel_size; ++j)
                     bytestream_put_byte(buf, *(this_line + i*s->pixel_size + j) ^ 0xff);
             } else {
                 bytestream_put_buffer(buf, this_line + i*s->pixel_size, s->pixel_size);