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Diffstat (limited to 'tests/videogen.c')
-rw-r--r--tests/videogen.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/tests/videogen.c b/tests/videogen.c
index f151f3edf8..aa4b767ded 100644
--- a/tests/videogen.c
+++ b/tests/videogen.c
@@ -146,12 +146,15 @@ int main(int argc, char **argv)
int w, h, i;
char buf[1024];
- if (argc != 2) {
- printf("usage: %s file\n"
+ if (argc > 2) {
+ printf("usage: %s [file]\n"
"generate a test video stream\n", argv[0]);
exit(1);
}
+ if (argc < 2)
+ err_if(!freopen(NULL, "wb", stdout));
+
w = DEFAULT_WIDTH;
h = DEFAULT_HEIGHT;
@@ -161,9 +164,13 @@ int main(int argc, char **argv)
height = h;
for (i = 0; i < DEFAULT_NB_PICT; i++) {
- snprintf(buf, sizeof(buf), "%s%02d.pgm", argv[1], i);
gen_image(i, w, h);
- pgmyuv_save(buf, w, h, rgb_tab);
+ if (argc > 1) {
+ snprintf(buf, sizeof(buf), "%s%02d.pgm", argv[1], i);
+ pgmyuv_save(buf, w, h, rgb_tab);
+ } else {
+ pgmyuv_save(NULL, w, h, rgb_tab);
+ }
}
free(rgb_tab);