SLS: fix conditional memleak

A memleak occured when non-raw mode was used and a slide complied to the
following conditions:
- PNG/JPG file
- 320x240 resolution or less
- size above max slide size (~50 KB)

Closes #2.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/sls.cpp b/src/sls.cpp
index 5031451..dcae806 100644
--- a/src/sls.cpp
+++ b/src/sls.cpp
@@ -397,6 +397,9 @@ bool SLSManager::encodeFile(const std::string& fname, int fidx, bool raw_slides)
                             fname.c_str(), fidx, blobsize);
                 }
                 resize_required = false;
+            } else {
+                free(blob);
+                blob = NULL;
             }
         }