factorize

Originally committed as revision 8510 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago · bf7709619b
parent 62ef8925c5
commit bf7709619b
1 changed files with 5 additions and 11 deletions
--- a/libavcodec/lzw.c
+++ b/libavcodec/lzw.c
@ -192,13 +192,12 @@ int ff_lzw_decode(LZWState *p, uint8_t *buf, int len){
    oc = s->oc;
    fc = s->fc;

-    while (sp > s->stack) {
-        *buf++ = *(--sp);
-        if ((--l) == 0)
-            goto the_end;
-    }
-
    for (;;) {
+        while (sp > s->stack) {
+            *buf++ = *(--sp);
+            if ((--l) == 0)
+                goto the_end;
+        }
        c = lzw_get_code(s);
        if (c == s->end_code) {
            s->end_code = -1;
@ -242,11 +241,6 @@ int ff_lzw_decode(LZWState *p, uint8_t *buf, int len){
                    s->curmask = mask[++s->cursize];
                }
            }
-            while (sp > s->stack) {
-                *buf++ = *(--sp);
-                if ((--l) == 0)
-                    goto the_end;
-            }
        }
    }
  the_end: