IFF PBM decoder: Add a pad byte if image width is odd <aleksi dot nurmi at gmail dot com>

Originally committed as revision 23701 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/iff.c

@@ -293,7 +293,7 @@ static int decode_frame_ilbm(AVCodecContext *avctx,
         for(y = 0; y < avctx->height; y++ ) {
             uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
             memcpy(row, buf, FFMIN(avctx->width, buf_end - buf));
-            buf += avctx->width;
+            buf += avctx->width + (avctx->width % 2); // padding if odd
         }
     }