1 files changed, 16 insertions, 10 deletions

diff --git a/libavcodec/xl.c b/libavcodec/xl.c
index e74d131943..0c85e22fc0 100644
--- a/libavcodec/xl.c
+++ b/libavcodec/xl.c
@@ -2,20 +2,20 @@
  * Miro VideoXL codec
  * Copyright (c) 2004 Konstantin Shishkov
  *
- * 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
  */
 
@@ -52,6 +52,16 @@ static int decode_frame(AVCodecContext *avctx,
     uint32_t val;
     int y0, y1, y2, y3 = 0, c0 = 0, c1 = 0;
 
+    if (avctx->width & 3) {
+        av_log(avctx, AV_LOG_ERROR, "width is not a multiple of 4\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (buf_size < avctx->width * avctx->height) {
+        av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
+        return AVERROR_INVALIDDATA;
+    }
+
     if(p->data[0])
         avctx->release_buffer(avctx, p);
 
@@ -69,11 +79,6 @@ static int decode_frame(AVCodecContext *avctx,
 
     stride = avctx->width - 4;
 
-    if (buf_size < avctx->width * avctx->height) {
-        av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
-        return AVERROR_INVALIDDATA;
-    }
-
     for (i = 0; i < avctx->height; i++) {
         /* lines are stored in reversed order */
         buf += stride;
@@ -127,8 +132,9 @@ static int decode_frame(AVCodecContext *avctx,
 }
 
 static av_cold int decode_init(AVCodecContext *avctx){
-//    VideoXLContext * const a = avctx->priv_data;
+    VideoXLContext * const a = avctx->priv_data;
 
+    avcodec_get_frame_defaults(&a->pic);
     avctx->pix_fmt= PIX_FMT_YUV411P;
 
     return 0;