Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libswscale/tests/swscale.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/libswscale/tests/swscale.c b/libswscale/tests/swscale.c
index 32e1f96be2b..cf8d04de898 100644
--- a/libswscale/tests/swscale.c
+++ b/libswscale/tests/swscale.c
@@ -437,6 +437,25 @@ int main(int argc, char **argv)
return -1;
for (i = 1; i < argc; i += 2) {
+ if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "--help")) {
+ fprintf(stderr,
+ "swscale [options...]\n"
+ " -help\n"
+ " This text\n"
+ " -ref <file>\n"
+ " Uses file as reference to compae tests againsts.
Tests that have become worse will contain the string worse or WORSE\n"
+ " -p <number between 0.0 and 1.0>\n"
+ " The percentage of tests or comparissions to
perform. Doing all tests will take long and generate over a hundread MB text
output\n"
+ " It is often convenient to perform a random
subset\n"
+ " -dst <pixfmt>\n"
+ " Only test the specified destination pixel format\n"
+ " -src <pixfmt>\n"
+ " Only test the specified source pixel format\n"
+ " -cpuflags <cpuflags>\n"
+ " Uses the specified cpuflags in teh tests\n"
+ );
+ goto error;
+ }
if (argv[i][0] != '-' || i + 1 == argc)
goto bad_option;
if (!strcmp(argv[i], "-ref")) {
@@ -469,7 +488,7 @@ int main(int argc, char **argv)
prob = atof(argv[i + 1]);
} else {
bad_option:
- fprintf(stderr, "bad option or argument missing (%s)\n", argv[i]);
+ fprintf(stderr, "bad option or argument missing (%s) see -help\n",
argv[i]);
goto error;
}
}
--
2.17.1
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