ptx: fix inverted check for sufficient data

Fix regression introduced in 2b53e69.
13 years ago · 8d61eef917
parent 28101f6c4e
commit 8d61eef917
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/ptx.c
+++ b/libavcodec/ptx.c
@ -84,7 +84,7 @@ static int ptx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
    ptr    = p->data[0];
    stride = p->linesize[0];

-    for (y = 0; y < h && buf_end - buf < w * bytes_per_pixel; y++) {
+    for (y = 0; y < h && buf_end - buf >= w * bytes_per_pixel; y++) {
 #if HAVE_BIGENDIAN
        unsigned int x;
        for (x=0; x<w*bytes_per_pixel; x+=bytes_per_pixel)