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fix the return value and handle missing input file case.

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Change-Id: I42a64fcf7587ff3a487115808e2cfa51cec0031d
This commit is contained in:
Pascal Massimino 2012-05-09 00:32:20 -07:00
parent e7167a2b95
commit 4abe04a204
1 changed files with 8 additions and 1 deletions
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9
examples/cwebp.c
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@ -776,6 +776,7 @@ static const char* const kErrorMessages[] = {
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
int main(int argc, const char *argv[]) { int main(int argc, const char *argv[]) {
int return_value = -1;
const char *in_file = NULL, *out_file = NULL, *dump_file = NULL; const char *in_file = NULL, *out_file = NULL, *dump_file = NULL;
FILE *out = NULL; FILE *out = NULL;
int c; int c;
@ -943,6 +944,11 @@ int main(int argc, const char *argv[]) {
in_file = argv[c]; in_file = argv[c];
} }
} }
if (in_file == NULL) {
fprintf(stderr, "No input file specified!\n");
HelpShort();
goto Error;
}
if (!WebPValidateConfig(&config)) { if (!WebPValidateConfig(&config)) {
fprintf(stderr, "Error! Invalid configuration.\n"); fprintf(stderr, "Error! Invalid configuration.\n");
@ -1038,6 +1044,7 @@ int main(int argc, const char *argv[]) {
(print_distortion == 1) ? "PSNR" : "SSIM", (print_distortion == 1) ? "PSNR" : "SSIM",
values[0], values[1], values[2], values[3], values[4]); values[0], values[1], values[2], values[3], values[4]);
} }
return_value = 0;
Error: Error:
free(picture.extra_info); free(picture.extra_info);
@ -1047,7 +1054,7 @@ int main(int argc, const char *argv[]) {
fclose(out); fclose(out);
} }
return 0; return return_value;
} }
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------