Merge commit '345a96c327e8f2a8077189af9f5e8d2b3f4ad5fe'

[ffmpeg] / libavcodec / jpeglsdec.c

diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 13b6e41d2a151d7e7596615e0520a1e2925fa0b2..add7200fc1080e65ec71a18bef5311926db6f10b 100644 (file)
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -52,17 +52,25 @@ int ff_jpegls_decode_lse(MJpegDecodeContext *s)
     int id;
     int tid, wt, maxtab, i, j;
 
-    int len = get_bits(&s->gb, 16);  /* length: FIXME: verify field validity */
+    int len = get_bits(&s->gb, 16);
     id = get_bits(&s->gb, 8);
 
     switch (id) {
     case 1:
+        if (len < 13)
+            return AVERROR_INVALIDDATA;
+
         s->maxval = get_bits(&s->gb, 16);
         s->t1     = get_bits(&s->gb, 16);
         s->t2     = get_bits(&s->gb, 16);
         s->t3     = get_bits(&s->gb, 16);
         s->reset  = get_bits(&s->gb, 16);
 
+        if(s->avctx->debug & FF_DEBUG_PICT_INFO) {
+            av_log(s->avctx, AV_LOG_DEBUG, "Coding parameters maxval:%d T1:%d T2:%d T3:%d reset:%d\n",
+                   s->maxval, s->t1, s->t2, s->t3, s->reset);
+        }
+
 //        ff_jpegls_reset_coding_parameters(s, 0);
         //FIXME quant table?
         break;