Signed-off-by: Steven Liu <l...@chinaffmpeg.org>
---
doc/examples/decode_video.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/doc/examples/decode_video.c b/doc/examples/decode_video.c
index 5a9d43f689..169188a4b9 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];
--
2.17.2 (Apple Git-113)
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