X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=doc%2Fexamples%2Fdecode_video.c;h=169188a4b93d4ed5f3cacd7fb85f1931f541459a;hb=c6df64035f3466f28f1abf4022b00cb3fd2ecd6d;hp=5a9d43f6897336cbefc88642032f03120621926d;hpb=06476249cd2332e30b66576633b2827adf3478dd;p=ffmpeg

diff --git a/doc/examples/decode_video.c b/doc/examples/decode_video.c
index 5a9d43f6897..169188a4b93 100644
--- a/doc/examples/decode_video.c
+++ b/doc/examples/decode_video.c
@@ -95,7 +95,8 @@ int main(int argc, char **argv)
     AVPacket *pkt;
 
     if (argc <= 2) {
-        fprintf(stderr, "Usage: %s <input file> <output file>\n", argv[0]);
+        fprintf(stderr, "Usage: %s <input file> <output file>\n"
+                "And check your input file is encoded by mpeg1video please.\n", argv[0]);
         exit(0);
     }
     filename    = argv[1];