[FFmpeg-cvslog] tiny_psnr: check for specified sample size less than 1

[Mans Rullgard]

ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Mon Oct 15 00:11:44 2012 +0100| [3dc06b6972cf389269e9c36ff0a4373f80f7149b] | committer: Mans Rullgard

tiny_psnr: check for specified sample size less than 1

A zero or negative sample size is impossible and should be
reported as an error.

Signed-off-by: Mans Rullgard <mans at mansr.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3dc06b6972cf389269e9c36ff0a4373f80f7149b
---

 tests/tiny_psnr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/tiny_psnr.c b/tests/tiny_psnr.c
index 5db2662..a53a670 100644
--- a/tests/tiny_psnr.c
+++ b/tests/tiny_psnr.c
@@ -139,7 +139,7 @@ int main(int argc, char *argv[])
         } else {
             char *end;
             len = strtol(argv[3], &end, 0);
-            if (*end || len > 2) {
+            if (*end || len < 1 || len > 2) {
                 fprintf(stderr, "Unsupported sample format: %s\n", argv[3]);
                 return 1;
             }