Fix compilation with old yasm.

[ffmpeg] / libavcodec / pnm.c

diff --git a/libavcodec/pnm.c b/libavcodec/pnm.c
index 54b55cfa5319f3815cab47e1fa5f5a72b51060b4..dfc18d6013858771b674f809211f9e4497fbd0c9 100644 (file)
--- a/libavcodec/pnm.c
+++ b/libavcodec/pnm.c
@@ -2,20 +2,20 @@
  * PNM image format
  * Copyright (c) 2002, 2003 Fabrice Bellard
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -135,7 +135,7 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
         return -1;
     pnm_get(s, buf1, sizeof(buf1));
     avctx->height = atoi(buf1);
-    if(av_image_check_size(avctx->width, avctx->height, 0, avctx))
+    if(avctx->height <= 0 || av_image_check_size(avctx->width, avctx->height, 0, avctx))
         return -1;
     if (avctx->pix_fmt != PIX_FMT_MONOWHITE) {
         pnm_get(s, buf1, sizeof(buf1));